Thomas Schlichter
3dcaacb63b
We need the ntn_config when reconfiguring the PHY layer for a new initial sync, e.g. for calculating the DL Doppler frequency. As a dedicated scheduled_response dl_config PDU it reaches the PHY layer too late, as part of the phy_config.config_req it reaches the PHY layer in time with the other configuration values.
4295 lines
184 KiB
C
4295 lines
184 KiB
C
/*
|
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
|
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
|
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
|
||
* except in compliance with the License.
|
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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||
* Unless required by applicable law or agreed to in writing, software
|
||
* distributed under the License is distributed on an "AS IS" BASIS,
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||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
|
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* contact@openairinterface.org
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||
*/
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/* \file ue_procedures.c
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* \brief procedures related to UE
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* \author R. Knopp, K.H. HSU, G. Casati
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* \date 2018
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* \version 0.1
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* \company Eurecom / NTUST
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* \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr, guido.casati@iis.fraunhofer.de
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* \note
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* \warning
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*/
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#include <stdio.h>
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#include <math.h>
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/* exe */
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#include "executables/nr-softmodem.h"
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/* RRC*/
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#include "RRC/NR_UE/L2_interface_ue.h"
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/* MAC */
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#include "NR_MAC_COMMON/nr_mac.h"
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#include "NR_MAC_UE/mac_proto.h"
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#include "common/utils/nr/nr_common.h"
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#include "openair2/NR_UE_PHY_INTERFACE/NR_Packet_Drop.h"
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/* PHY */
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#include "executables/softmodem-common.h"
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/* utils */
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#include "assertions.h"
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#include "oai_asn1.h"
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#include "common/utils/LOG/log.h"
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#include "common/utils/LOG/vcd_signal_dumper.h"
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#include "LAYER2/nr_rlc/nr_rlc_oai_api.h"
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// #define DEBUG_MIB
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// #define ENABLE_MAC_PAYLOAD_DEBUG 1
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// #define DEBUG_RAR
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// table 7.2-1 TS 38.321
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const uint16_t table_7_2_1[16] = {
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5, // row index 0
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10, // row index 1
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20, // row index 2
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30, // row index 3
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40, // row index 4
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60, // row index 5
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80, // row index 6
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120, // row index 7
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160, // row index 8
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240, // row index 9
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320, // row index 10
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480, // row index 11
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960, // row index 12
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1920, // row index 13
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};
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typedef struct {
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uint32_t ssb_index;
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short ssb_rsrp_dBm;
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float_t ssb_sinr_dB;
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} NR_RSRP_meas_t;
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/* TS 36.213 Table 9.2.3-3: Mapping of values for one HARQ-ACK bit to sequences */
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static const int sequence_cyclic_shift_1_harq_ack_bit[2]
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/* HARQ-ACK Value 0 1 */
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/* Sequence cyclic shift */ = { 0, 6 };
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/* TS 36.213 Table 9.2.5-1: Mapping of values for one HARQ-ACK bit and positive SR to sequences */
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static const int sequence_cyclic_shift_1_harq_ack_bit_positive_sr[2]
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/* HARQ-ACK Value 0 1 */
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/* Sequence cyclic shift */ = { 3, 9 };
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/* TS 36.213 Table 9.2.5-2: Mapping of values for two HARQ-ACK bits and positive SR to sequences */
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static const int sequence_cyclic_shift_2_harq_ack_bits_positive_sr[4]
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/* HARQ-ACK Value (0,0) (0,1) (1,0) (1,1) */
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/* Sequence cyclic shift */ = { 1, 4, 10, 7 };
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/* TS 38.213 Table 9.2.3-4: Mapping of values for two HARQ-ACK bits to sequences */
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static const int sequence_cyclic_shift_2_harq_ack_bits[4]
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/* HARQ-ACK Value (0,0) (0,1) (1,0) (1,1) */
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/* Sequence cyclic shift */ = { 0, 3, 9, 6 };
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/* \brief Function called by PHY to process the received RAR and check that the preamble matches what was sent by the gNB. It
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provides the timing advance and t-CRNTI.
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@param Mod_id Index of UE instance
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@param CC_id Index to a component carrier
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@param frame Frame index
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@param ra_rnti RA_RNTI value
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@param dlsch_buffer Pointer to dlsch_buffer containing RAR PDU
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@param t_crnti Pointer to PHY variable containing the T_CRNTI
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@param preamble_index Preamble Index used by PHY to transmit the PRACH. This should match the received RAR to trigger the rest of
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random-access procedure
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@param selected_rar_buffer the output buffer for storing the selected RAR header and RAR payload
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@returns timing advance or 0xffff if preamble doesn't match
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*/
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static void nr_ue_process_rar(NR_UE_MAC_INST_t *mac, nr_downlink_indication_t *dl_info, int pdu_id);
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/*! \fn int8_t nr_ue_get_SR(NR_UE_MAC_INST_t *mac, frame_t frame, slot_t slot, NR_SchedulingRequestId_t sr_id);
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\brief This function schedules a positive or negative SR for schedulingRequestID sr_id
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depending on the presence of any active SR and the prohibit timer.
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If the max number of retransmissions is reached, it triggers a new RA */
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static int8_t nr_ue_get_SR(NR_UE_MAC_INST_t *mac, frame_t frame, slot_t slot, NR_SchedulingRequestId_t sr_id);
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static csi_payload_t get_ssb_rsrp_payload(NR_UE_MAC_INST_t *mac,
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struct NR_CSI_ReportConfig *csi_reportconfig,
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NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
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NR_CSI_MeasConfig_t *csi_MeasConfig);
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static csi_payload_t get_csirs_RI_PMI_CQI_payload(NR_UE_MAC_INST_t *mac,
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struct NR_CSI_ReportConfig *csi_reportconfig,
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NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
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NR_CSI_MeasConfig_t *csi_MeasConfig,
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CSI_mapping_t mapping_type);
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static csi_payload_t get_csirs_RSRP_payload(NR_UE_MAC_INST_t *mac,
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struct NR_CSI_ReportConfig *csi_reportconfig,
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NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
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const NR_CSI_MeasConfig_t *csi_MeasConfig);
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static uint8_t get_rsrp_diff_index(int best_rsrp, int current_rsrp);
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static void nr_ue_process_mac_pdu(NR_UE_MAC_INST_t *mac, nr_downlink_indication_t *dl_info, int pdu_id);
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static void set_harq_status(NR_UE_MAC_INST_t *mac,
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uint8_t pucch_id,
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uint8_t harq_id,
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int8_t delta_pucch,
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uint16_t data_toul_fb,
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uint8_t dai,
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int n_CCE,
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int N_CCE,
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frame_t frame,
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int slot);
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int get_pucch0_mcs(const int O_ACK, const int O_SR, const int ack_payload, const int sr_payload)
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{
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int mcs = 0;
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if (O_SR == 0 || sr_payload == 0) { /* only ack is transmitted TS 36.213 9.2.3 UE procedure for reporting HARQ-ACK */
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if (O_ACK == 1)
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mcs = sequence_cyclic_shift_1_harq_ack_bit[ack_payload & 0x1]; /* only harq of 1 bit */
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else
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mcs = sequence_cyclic_shift_2_harq_ack_bits[ack_payload & 0x3]; /* only harq with 2 bits */
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} else { /* SR + eventually ack are transmitted TS 36.213 9.2.5.1 UE procedure for multiplexing HARQ-ACK or CSI and SR */
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if (sr_payload == 1) { /* positive scheduling request */
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if (O_ACK == 1)
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mcs = sequence_cyclic_shift_1_harq_ack_bit_positive_sr[ack_payload & 0x1]; /* positive SR and harq of 1 bit */
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else if (O_ACK == 2)
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mcs = sequence_cyclic_shift_2_harq_ack_bits_positive_sr[ack_payload & 0x3]; /* positive SR and harq with 2 bits */
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else
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mcs = 0; /* only positive SR */
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}
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}
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return mcs;
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}
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/* TS 36.213 Table 9.2.1-1: PUCCH resource sets before dedicated PUCCH resource configuration */
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const initial_pucch_resource_t initial_pucch_resource[16] = {
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/* format first symbol Number of symbols PRB offset nb index for set of initial CS */
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/* 0 */ { 0, 12, 2, 0, 2, { 0, 3, 0, 0 } },
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/* 1 */ { 0, 12, 2, 0, 3, { 0, 4, 8, 0 } },
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/* 2 */ { 0, 12, 2, 3, 3, { 0, 4, 8, 0 } },
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/* 3 */ { 1, 10, 4, 0, 2, { 0, 6, 0, 0 } },
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/* 4 */ { 1, 10, 4, 0, 4, { 0, 3, 6, 9 } },
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/* 5 */ { 1, 10, 4, 2, 4, { 0, 3, 6, 9 } },
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/* 6 */ { 1, 10, 4, 4, 4, { 0, 3, 6, 9 } },
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/* 7 */ { 1, 4, 10, 0, 2, { 0, 6, 0, 0 } },
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/* 8 */ { 1, 4, 10, 0, 4, { 0, 3, 6, 9 } },
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/* 9 */ { 1, 4, 10, 2, 4, { 0, 3, 6, 9 } },
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/* 10 */ { 1, 4, 10, 4, 4, { 0, 3, 6, 9 } },
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/* 11 */ { 1, 0, 14, 0, 2, { 0, 6, 0, 0 } },
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/* 12 */ { 1, 0, 14, 0, 4, { 0, 3, 6, 9 } },
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/* 13 */ { 1, 0, 14, 2, 4, { 0, 3, 6, 9 } },
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/* 14 */ { 1, 0, 14, 4, 4, { 0, 3, 6, 9 } },
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/* 15 */ { 1, 0, 14, 0, 4, { 0, 3, 6, 9 } },
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};
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static nr_dci_format_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
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const nfapi_nr_dci_formats_e dci_format,
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const uint8_t dci_size,
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const uint16_t rnti,
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const int ss_type,
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const uint8_t *dci_pdu,
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const int slot);
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int get_rnti_type(const NR_UE_MAC_INST_t *mac, const uint16_t rnti)
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{
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const RA_config_t *ra = &mac->ra;
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nr_rnti_type_t rnti_type;
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if (rnti == ra->ra_rnti) {
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rnti_type = TYPE_RA_RNTI_;
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} else if (rnti == ra->MsgB_rnti && (ra->ra_state == nrRA_WAIT_MSGB || ra->ra_state == nrRA_WAIT_CONTENTION_RESOLUTION)) {
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rnti_type = TYPE_MSGB_RNTI_;
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} else if (rnti == ra->t_crnti && (ra->ra_state == nrRA_WAIT_RAR || ra->ra_state == nrRA_WAIT_CONTENTION_RESOLUTION)) {
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rnti_type = TYPE_TC_RNTI_;
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} else if (rnti == mac->crnti) {
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rnti_type = TYPE_C_RNTI_;
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} else if (rnti == 0xFFFE) {
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rnti_type = TYPE_P_RNTI_;
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} else if (rnti == 0xFFFF) {
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rnti_type = TYPE_SI_RNTI_;
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} else {
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AssertFatal(1 == 0, "Not identified/handled rnti %d \n", rnti);
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}
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LOG_D(MAC, "Returning rnti_type %s \n", rnti_types(rnti_type));
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return rnti_type;
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}
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void nr_ue_decode_mib(NR_UE_MAC_INST_t *mac, int cc_id)
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{
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LOG_D(MAC,"[L2][MAC] decode mib\n");
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if (mac->mib->cellBarred == NR_MIB__cellBarred_barred) {
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LOG_W(MAC, "Cell is barred. Going back to sync mode.\n");
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mac->synch_request.Mod_id = mac->ue_id;
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mac->synch_request.CC_id = cc_id;
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mac->synch_request.synch_req.target_Nid_cell = -1;
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mac->if_module->synch_request(&mac->synch_request);
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return;
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}
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uint16_t frame = (mac->mib->systemFrameNumber.buf[0] >> mac->mib->systemFrameNumber.bits_unused);
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uint16_t frame_number_4lsb = 0;
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int extra_bits = mac->mib_additional_bits;
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for (int i = 0; i < 4; i++)
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frame_number_4lsb |= ((extra_bits >> i) & 1) << (3 - i);
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uint8_t ssb_subcarrier_offset_msb = (extra_bits >> 5) & 0x1; // extra bits[5]
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uint8_t ssb_subcarrier_offset = (uint8_t)mac->mib->ssb_SubcarrierOffset;
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frame = frame << 4;
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mac->mib_frame = frame | frame_number_4lsb;
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if (mac->frequency_range == FR2) {
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for (int i = 0; i < 3; i++)
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mac->mib_ssb += (((extra_bits >> (7 - i)) & 0x01) << (3 + i));
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} else{
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if(ssb_subcarrier_offset_msb)
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ssb_subcarrier_offset = ssb_subcarrier_offset | 0x10;
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}
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#ifdef DEBUG_MIB
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uint8_t half_frame_bit = (extra_bits >> 4) & 0x1; // extra bits[4]
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LOG_I(MAC,"system frame number(6 MSB bits): %d\n", mac->mib->systemFrameNumber.buf[0]);
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LOG_I(MAC,"system frame number(with LSB): %d\n", (int) mac->mib_frame);
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LOG_I(MAC,"subcarrier spacing (0=15or60, 1=30or120): %d\n", (int)mac->mib->subCarrierSpacingCommon);
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LOG_I(MAC,"ssb carrier offset(with MSB): %d\n", (int)ssb_subcarrier_offset);
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LOG_I(MAC,"dmrs type A position (0=pos2,1=pos3): %d\n", (int)mac->mib->dmrs_TypeA_Position);
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LOG_I(MAC,"controlResourceSetZero: %d\n", (int)mac->mib->pdcch_ConfigSIB1.controlResourceSetZero);
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LOG_I(MAC,"searchSpaceZero: %d\n", (int)mac->mib->pdcch_ConfigSIB1.searchSpaceZero);
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LOG_I(MAC,"cell barred (0=barred,1=notBarred): %d\n", (int)mac->mib->cellBarred);
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LOG_I(MAC,"intra frequency reselection (0=allowed,1=notAllowed): %d\n", (int)mac->mib->intraFreqReselection);
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LOG_I(MAC,"half frame bit(extra bits): %d\n", (int)half_frame_bit);
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LOG_I(MAC,"ssb index(extra bits): %d\n", (int)mac->mib_ssb);
|
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#endif
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mac->ssb_subcarrier_offset = ssb_subcarrier_offset;
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mac->dmrs_TypeA_Position = mac->mib->dmrs_TypeA_Position;
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|
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}
|
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|
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static void configure_ratematching_csi(fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_pdu,
|
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const fapi_nr_dl_config_request_t *dl_config,
|
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int rnti_type,
|
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int frame,
|
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int slot,
|
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int mu,
|
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int slots_per_frame,
|
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const NR_PDSCH_Config_t *pdsch_config,
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NR_CSI_MeasConfig_t *csi_MeasConfig)
|
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{
|
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// only for C-RNTI, MCS-C-RNTI, CS-RNTI (and only C-RNTI is supported for now)
|
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if (rnti_type != TYPE_C_RNTI_)
|
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return;
|
||
|
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if (pdsch_config && pdsch_config->zp_CSI_RS_ResourceToAddModList) {
|
||
bool found = false;
|
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const NR_SetupRelease_ZP_CSI_RS_ResourceSet_t *zp_set = pdsch_config->p_ZP_CSI_RS_ResourceSet;
|
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AssertFatal(zp_set && zp_set->choice.setup, "Only periodic ZP resource set is implemented\n");
|
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const NR_ZP_CSI_RS_Resource_t *zp_res = NULL;
|
||
for (int j = 0; j < zp_set->choice.setup->zp_CSI_RS_ResourceIdList.list.count; j++) {
|
||
for (int i = 0; i < pdsch_config->zp_CSI_RS_ResourceToAddModList->list.count; i++) {
|
||
zp_res = pdsch_config->zp_CSI_RS_ResourceToAddModList->list.array[i];
|
||
NR_ZP_CSI_RS_ResourceId_t id = zp_res->zp_CSI_RS_ResourceId;
|
||
if (*zp_set->choice.setup->zp_CSI_RS_ResourceIdList.list.array[j] == id) {
|
||
found = true;
|
||
break;
|
||
}
|
||
}
|
||
AssertFatal(found, "Couldn't find periodic ZP resouce in set\n");
|
||
AssertFatal(zp_res->periodicityAndOffset, "periodicityAndOffset cannot be null for periodic ZP resource\n");
|
||
int period, offset;
|
||
csi_period_offset(NULL, zp_res->periodicityAndOffset, &period, &offset);
|
||
if((frame * slots_per_frame + slot - offset) % period != 0)
|
||
continue;
|
||
AssertFatal(dlsch_pdu->numCsiRsForRateMatching < NFAPI_MAX_NUM_CSI_RATEMATCH, "csiRsForRateMatching out of bounds\n");
|
||
fapi_nr_dl_config_csirs_pdu_rel15_t *csi_pdu = &dlsch_pdu->csiRsForRateMatching[dlsch_pdu->numCsiRsForRateMatching];
|
||
csi_pdu->csi_type = 2; // ZP-CSI
|
||
csi_pdu->subcarrier_spacing = mu;
|
||
configure_csi_resource_mapping(csi_pdu, &zp_res->resourceMapping, dlsch_pdu->BWPSize, dlsch_pdu->BWPStart);
|
||
dlsch_pdu->numCsiRsForRateMatching++;
|
||
}
|
||
}
|
||
|
||
// Handle NZP CSI-RS for rate matching
|
||
if (csi_MeasConfig && csi_MeasConfig->nzp_CSI_RS_ResourceToAddModList) {
|
||
for (int i = 0; i < csi_MeasConfig->nzp_CSI_RS_ResourceToAddModList->list.count; i++) {
|
||
NR_NZP_CSI_RS_Resource_t *nzp_res = csi_MeasConfig->nzp_CSI_RS_ResourceToAddModList->list.array[i];
|
||
if (nzp_res->periodicityAndOffset) {
|
||
int period, offset;
|
||
csi_period_offset(NULL, nzp_res->periodicityAndOffset, &period, &offset);
|
||
if ((frame * slots_per_frame + slot - offset) % period != 0)
|
||
continue;
|
||
AssertFatal(dlsch_pdu->numCsiRsForRateMatching < NFAPI_MAX_NUM_CSI_RATEMATCH, "csiRsForRateMatching out of bounds\n");
|
||
fapi_nr_dl_config_csirs_pdu_rel15_t *csi_pdu = &dlsch_pdu->csiRsForRateMatching[dlsch_pdu->numCsiRsForRateMatching];
|
||
csi_pdu->csi_type = 1; // NZP CSI-RS
|
||
csi_pdu->subcarrier_spacing = mu;
|
||
configure_csi_resource_mapping(csi_pdu, &nzp_res->resourceMapping, dlsch_pdu->BWPSize, dlsch_pdu->BWPStart);
|
||
dlsch_pdu->numCsiRsForRateMatching++;
|
||
}
|
||
}
|
||
}
|
||
|
||
for (int i = 0; i < dl_config->number_pdus; i++) {
|
||
// This assumes that CSI-RS are scheduled before this moment which is true in current implementation
|
||
const fapi_nr_dl_config_request_pdu_t *csi_req = &dl_config->dl_config_list[i];
|
||
if (csi_req->pdu_type == FAPI_NR_DL_CONFIG_TYPE_CSI_RS) {
|
||
AssertFatal(dlsch_pdu->numCsiRsForRateMatching < NFAPI_MAX_NUM_CSI_RATEMATCH, "csiRsForRateMatching out of bounds\n");
|
||
dlsch_pdu->csiRsForRateMatching[dlsch_pdu->numCsiRsForRateMatching] = csi_req->csirs_config_pdu.csirs_config_rel15;
|
||
dlsch_pdu->numCsiRsForRateMatching++;
|
||
}
|
||
}
|
||
}
|
||
|
||
void nr_ue_decode_BCCH_DL_SCH(NR_UE_MAC_INST_t *mac,
|
||
int cc_id,
|
||
unsigned int gNB_index,
|
||
uint8_t ack_nack,
|
||
uint8_t *pduP,
|
||
uint32_t pdu_len,
|
||
int hfn,
|
||
int frame,
|
||
int slot)
|
||
{
|
||
if(ack_nack) {
|
||
LOG_D(NR_MAC, "Decoding NR-BCCH-DL-SCH-Message (SIB1 or SI)\n");
|
||
nr_mac_rrc_data_ind_ue(mac->ue_id, cc_id, gNB_index, hfn, frame, slot, 0, mac->physCellId, 0, NR_BCCH_DL_SCH, (uint8_t *) pduP, pdu_len);
|
||
if (mac->get_sib1)
|
||
mac->get_sib1 = false;
|
||
for (int i = 0; i < MAX_SI_GROUPS; i++) {
|
||
if (mac->get_otherSI[i])
|
||
mac->get_otherSI[i] = false;
|
||
}
|
||
mac->si_SchedInfo.si_window_start = -1;
|
||
T(T_NRUE_MAC_DL_PDU_WITH_DATA,
|
||
T_INT(SI_RNTI),
|
||
T_INT(-1 /* frame, unavailable here */),
|
||
T_INT(-1 /* slot, unavailable here */),
|
||
T_INT(0 /* harq_pid */),
|
||
T_BUFFER(pduP, pdu_len));
|
||
}
|
||
else {
|
||
LOG_E(NR_MAC, "Got NACK on NR-BCCH-DL-SCH-Message (%s)\n", mac->get_sib1 ? "SIB1" : "other SI");
|
||
nr_mac_rrc_data_ind_ue(mac->ue_id, cc_id, gNB_index, hfn, frame, slot, 0, mac->physCellId, 0, NR_BCCH_DL_SCH, NULL, 0);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* This code contains all the functions needed to process all dci fields.
|
||
* These tables and functions are going to be called by function nr_ue_process_dci
|
||
*/
|
||
|
||
static inline int writeBit(uint8_t *bitmap, int offset, int value, int size)
|
||
{
|
||
for (int i = offset; i < offset + size; i++)
|
||
bitmap[i / 8] |= value << (i % 8);
|
||
return size;
|
||
}
|
||
|
||
// 38.214 Section 5.1.3.1
|
||
static uint8_t get_dlsch_mcs_table(nr_dci_format_t format,
|
||
nr_rnti_type_t rnti_type,
|
||
int ss_type,
|
||
long *mcs_Table,
|
||
long *sps_mcs_Table,
|
||
bool sps_transmission,
|
||
long *mcs_C_RNTI)
|
||
{
|
||
// TODO procedures for SPS-Config (semi-persistent scheduling) not implemented
|
||
if (mcs_Table && *mcs_Table == NR_PDSCH_Config__mcs_Table_qam256 && format == NR_DL_DCI_FORMAT_1_1 && rnti_type == TYPE_C_RNTI_)
|
||
return 1; // Table 5.1.3.1-2: MCS index table 2 for PDSCH
|
||
else if (!mcs_C_RNTI
|
||
&& mcs_Table
|
||
&& *mcs_Table == NR_PDSCH_Config__mcs_Table_qam64LowSE
|
||
&& ss_type == NR_SearchSpace__searchSpaceType_PR_ue_Specific
|
||
&& rnti_type == TYPE_C_RNTI_)
|
||
return 2; // Table 5.1.3.1-3: MCS index table 3 for PDSCH
|
||
else if (mcs_C_RNTI && rnti_type == TYPE_MCS_C_RNTI_)
|
||
return 2; // Table 5.1.3.1-3: MCS index table 3 for PDSCH
|
||
else if (!sps_mcs_Table && mcs_Table && *mcs_Table == NR_PDSCH_Config__mcs_Table_qam256) {
|
||
if ((format == NR_DL_DCI_FORMAT_1_1 && rnti_type == TYPE_CS_RNTI_) || sps_transmission)
|
||
return 1; // Table 5.1.3.1-2: MCS index table 2 for PDSCH
|
||
}
|
||
else if (sps_mcs_Table) {
|
||
if (rnti_type == TYPE_CS_RNTI_ || sps_transmission)
|
||
return 2; // Table 5.1.3.1-3: MCS index table 3 for PDSCH
|
||
}
|
||
// otherwise
|
||
return 0; // Table 5.1.3.1-1: MCS index table 1 for PDSCH
|
||
}
|
||
|
||
int8_t nr_ue_process_dci_freq_dom_resource_assignment(nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu,
|
||
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu,
|
||
NR_PDSCH_Config_t *pdsch_Config,
|
||
uint16_t n_RB_ULBWP,
|
||
uint16_t n_RB_DLBWP,
|
||
int start_DLBWP,
|
||
dci_field_t frequency_domain_assignment)
|
||
{
|
||
|
||
/*
|
||
* TS 38.214 subclause 5.1.2.2 Resource allocation in frequency domain (downlink)
|
||
* when the scheduling grant is received with DCI format 1_0, then downlink resource allocation type 1 is used
|
||
*/
|
||
if(dlsch_config_pdu != NULL) {
|
||
if (pdsch_Config &&
|
||
pdsch_Config->resourceAllocation == NR_PDSCH_Config__resourceAllocation_resourceAllocationType0) {
|
||
// TS 38.214 subclause 5.1.2.2.1 Downlink resource allocation type 0
|
||
dlsch_config_pdu->resource_alloc = 0;
|
||
uint8_t *rb_bitmap = dlsch_config_pdu->rb_bitmap;
|
||
memset(rb_bitmap, 0, sizeof(dlsch_config_pdu->rb_bitmap));
|
||
int P = getRBGSize(n_RB_DLBWP, pdsch_Config->rbg_Size);
|
||
int currentBit = 0;
|
||
|
||
// write first bit sepcial case
|
||
const int n_RBG = frequency_domain_assignment.nbits;
|
||
int first_bit_rbg = (frequency_domain_assignment.val >> (n_RBG - 1)) & 0x01;
|
||
currentBit += writeBit(rb_bitmap, currentBit, first_bit_rbg, P - (start_DLBWP % P));
|
||
|
||
// write all bits until last bit special case
|
||
for (int i = 1; i < n_RBG - 1; i++) {
|
||
// The order of RBG bitmap is such that RBG 0 to RBG n_RBG − 1 are mapped from MSB to LSB
|
||
int bit_rbg = (frequency_domain_assignment.val >> (n_RBG - 1 - i)) & 0x01;
|
||
currentBit += writeBit(rb_bitmap, currentBit, bit_rbg, P);
|
||
}
|
||
|
||
// write last bit
|
||
int last_bit_rbg = frequency_domain_assignment.val & 0x01;
|
||
const int tmp=(start_DLBWP + n_RB_DLBWP) % P;
|
||
int last_RBG = tmp ? tmp : P;
|
||
writeBit(rb_bitmap, currentBit, last_bit_rbg, last_RBG);
|
||
}
|
||
else if (pdsch_Config &&
|
||
pdsch_Config->resourceAllocation == NR_PDSCH_Config__resourceAllocation_dynamicSwitch)
|
||
AssertFatal(false, "DLSCH dynamic switch allocation not yet supported\n");
|
||
else {
|
||
// TS 38.214 subclause 5.1.2.2.2 Downlink resource allocation type 1
|
||
dlsch_config_pdu->resource_alloc = 1;
|
||
int riv = frequency_domain_assignment.val;
|
||
dlsch_config_pdu->number_rbs = NRRIV2BW(riv,n_RB_DLBWP);
|
||
dlsch_config_pdu->start_rb = NRRIV2PRBOFFSET(riv,n_RB_DLBWP);
|
||
|
||
// Sanity check in case a false or erroneous DCI is received
|
||
if ((dlsch_config_pdu->number_rbs < 1) || (dlsch_config_pdu->number_rbs > n_RB_DLBWP - dlsch_config_pdu->start_rb)) {
|
||
// DCI is invalid!
|
||
LOG_W(MAC, "Frequency domain assignment values are invalid! #RBs: %d, Start RB: %d, n_RB_DLBWP: %d \n", dlsch_config_pdu->number_rbs, dlsch_config_pdu->start_rb, n_RB_DLBWP);
|
||
return -1;
|
||
}
|
||
LOG_D(MAC,"DLSCH riv = %i\n", riv);
|
||
LOG_D(MAC,"DLSCH n_RB_DLBWP = %i\n", n_RB_DLBWP);
|
||
LOG_D(MAC,"DLSCH number_rbs = %i\n", dlsch_config_pdu->number_rbs);
|
||
LOG_D(MAC,"DLSCH start_rb = %i\n", dlsch_config_pdu->start_rb);
|
||
}
|
||
}
|
||
if(pusch_config_pdu != NULL){
|
||
/*
|
||
* TS 38.214 subclause 6.1.2.2 Resource allocation in frequency domain (uplink)
|
||
*/
|
||
/*
|
||
* TS 38.214 subclause 6.1.2.2.1 Uplink resource allocation type 0
|
||
*/
|
||
/*
|
||
* TS 38.214 subclause 6.1.2.2.2 Uplink resource allocation type 1
|
||
*/
|
||
int riv = frequency_domain_assignment.val;
|
||
pusch_config_pdu->rb_size = NRRIV2BW(riv,n_RB_ULBWP);
|
||
pusch_config_pdu->rb_start = NRRIV2PRBOFFSET(riv,n_RB_ULBWP);
|
||
|
||
// Sanity check in case a false or erroneous DCI is received
|
||
if ((pusch_config_pdu->rb_size < 1) || (pusch_config_pdu->rb_size > n_RB_ULBWP - pusch_config_pdu->rb_start)) {
|
||
// DCI is invalid!
|
||
LOG_W(MAC, "Frequency domain assignment values are invalid! #RBs: %d, Start RB: %d, n_RB_ULBWP: %d \n",pusch_config_pdu->rb_size, pusch_config_pdu->rb_start, n_RB_ULBWP);
|
||
return -1;
|
||
}
|
||
LOG_D(MAC,"ULSCH riv = %i\n", riv);
|
||
LOG_D(MAC,"ULSCH n_RB_DLBWP = %i\n", n_RB_ULBWP);
|
||
LOG_D(MAC,"ULSCH number_rbs = %i\n", pusch_config_pdu->rb_size);
|
||
LOG_D(MAC,"ULSCH start_rb = %i\n", pusch_config_pdu->rb_start);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static int nr_ue_process_dci_ul_00(NR_UE_MAC_INST_t *mac,
|
||
frame_t frame,
|
||
int slot,
|
||
dci_pdu_rel15_t *dci,
|
||
fapi_nr_dci_indication_pdu_t *dci_ind)
|
||
{
|
||
/*
|
||
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI
|
||
* 0 IDENTIFIER_DCI_FORMATS:
|
||
* 10 FREQ_DOM_RESOURCE_ASSIGNMENT_UL: PUSCH hopping with resource allocation type 1 not considered
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 6.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 17 FREQ_HOPPING_FLAG: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 25 NDI:
|
||
* 26 RV:
|
||
* 27 HARQ_PROCESS_NUMBER:
|
||
* 32 TPC_PUSCH:
|
||
* 49 PADDING_NR_DCI: (Note 2) If DCI format 0_0 is monitored in common search space
|
||
* 50 SUL_IND_0_0:
|
||
*/
|
||
// Calculate the slot in which ULSCH should be scheduled. This is current slot + K2,
|
||
// where K2 is the offset between the slot in which UL DCI is received and the slot
|
||
// in which ULSCH should be scheduled. K2 is configured in RRC configuration.
|
||
// todo:
|
||
// - SUL_IND_0_0
|
||
|
||
// Schedule PUSCH
|
||
const int coreset_type = dci_ind->coreset_type == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG; // 0 for coreset0, 1 otherwise;
|
||
|
||
NR_tda_info_t tda_info = get_ul_tda_info(mac->current_UL_BWP,
|
||
coreset_type,
|
||
dci_ind->ss_type,
|
||
get_rnti_type(mac, dci_ind->rnti),
|
||
dci->time_domain_assignment.val);
|
||
|
||
if (!tda_info.valid_tda || tda_info.nrOfSymbols == 0)
|
||
return -1;
|
||
|
||
frame_t frame_tx;
|
||
int slot_tx;
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, mac->current_UL_BWP->scs);
|
||
if (-1 == nr_ue_pusch_scheduler(mac, 0, frame, slot, &frame_tx, &slot_tx, tda_info.k2 + ntn_ue_koffset)) {
|
||
LOG_E(MAC, "Cannot schedule PUSCH\n");
|
||
return -1;
|
||
}
|
||
|
||
fapi_nr_ul_config_request_pdu_t *pdu = lockGet_ul_config(mac, frame_tx, slot_tx, FAPI_NR_UL_CONFIG_TYPE_PUSCH);
|
||
if (!pdu)
|
||
return -1;
|
||
|
||
int ret = nr_config_pusch_pdu(mac,
|
||
&tda_info,
|
||
&pdu->pusch_config_pdu,
|
||
dci,
|
||
NULL,
|
||
NULL,
|
||
dci_ind->rnti,
|
||
dci_ind->ss_type,
|
||
NR_UL_DCI_FORMAT_0_0);
|
||
if (ret != 0)
|
||
remove_ul_config_last_item(pdu);
|
||
release_ul_config(pdu, false);
|
||
return ret;
|
||
}
|
||
|
||
static int nr_ue_process_dci_ul_01(NR_UE_MAC_INST_t *mac,
|
||
frame_t frame,
|
||
int slot,
|
||
dci_pdu_rel15_t *dci,
|
||
fapi_nr_dci_indication_pdu_t *dci_ind)
|
||
{
|
||
/*
|
||
* with CRC scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI or new-RNTI
|
||
* 0 IDENTIFIER_DCI_FORMATS:
|
||
* 1 CARRIER_IND
|
||
* 2 SUL_IND_0_1
|
||
* 7 BANDWIDTH_PART_IND
|
||
* 10 FREQ_DOM_RESOURCE_ASSIGNMENT_UL: PUSCH hopping with resource allocation type 1 not considered
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 6.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 17 FREQ_HOPPING_FLAG: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 25 NDI:
|
||
* 26 RV:
|
||
* 27 HARQ_PROCESS_NUMBER:
|
||
* 29 FIRST_DAI
|
||
* 30 SECOND_DAI
|
||
* 32 TPC_PUSCH:
|
||
* 36 SRS_RESOURCE_IND:
|
||
* 37 PRECOD_NBR_LAYERS:
|
||
* 38 ANTENNA_PORTS:
|
||
* 40 SRS_REQUEST:
|
||
* 42 CSI_REQUEST:
|
||
* 43 CBGTI
|
||
* 45 PTRS_DMRS
|
||
* 46 BETA_OFFSET_IND
|
||
* 47 DMRS_SEQ_INI
|
||
* 48 UL_SCH_IND
|
||
* 49 PADDING_NR_DCI: (Note 2) If DCI format 0_0 is monitored in common search space
|
||
*/
|
||
// TODO:
|
||
// - FIRST_DAI
|
||
// - SECOND_DAI
|
||
// - SRS_RESOURCE_IND
|
||
|
||
/* CSI_REQUEST */
|
||
long csi_K2 = -1;
|
||
csi_payload_t csi_report = {0};
|
||
if (dci->csi_request.nbits > 0 && dci->csi_request.val > 0)
|
||
csi_report = nr_ue_aperiodic_csi_reporting(mac, dci->csi_request, dci->time_domain_assignment.val, &csi_K2);
|
||
|
||
/* SRS_REQUEST */
|
||
AssertFatal(dci->srs_request.nbits == 2, "If SUL is supported in the cell, there is an additional bit in SRS request field\n");
|
||
if (dci->srs_request.val > 0)
|
||
nr_ue_aperiodic_srs_scheduling(mac, dci->srs_request.val, frame, slot);
|
||
|
||
// Schedule PUSCH
|
||
frame_t frame_tx;
|
||
int slot_tx;
|
||
const int coreset_type = dci_ind->coreset_type == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG; // 0 for coreset0, 1 otherwise;
|
||
|
||
NR_tda_info_t tda_info = get_ul_tda_info(mac->current_UL_BWP,
|
||
coreset_type,
|
||
dci_ind->ss_type,
|
||
get_rnti_type(mac, dci_ind->rnti),
|
||
dci->time_domain_assignment.val);
|
||
|
||
if (!tda_info.valid_tda || tda_info.nrOfSymbols == 0)
|
||
return -1;
|
||
|
||
if (dci->ulsch_indicator == 0) {
|
||
// in case of CSI on PUSCH and no ULSCH we need to use reportSlotOffset in trigger state
|
||
if (csi_K2 <= 0) {
|
||
LOG_E(MAC, "Invalid CSI K2 value %ld\n", csi_K2);
|
||
return -1;
|
||
}
|
||
tda_info.k2 = csi_K2;
|
||
}
|
||
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, mac->current_UL_BWP->scs);
|
||
if (-1 == nr_ue_pusch_scheduler(mac, 0, frame, slot, &frame_tx, &slot_tx, tda_info.k2 + ntn_ue_koffset)) {
|
||
LOG_E(MAC, "Cannot schedule PUSCH\n");
|
||
return -1;
|
||
}
|
||
|
||
fapi_nr_ul_config_request_pdu_t *pdu = lockGet_ul_config(mac, frame_tx, slot_tx, FAPI_NR_UL_CONFIG_TYPE_PUSCH);
|
||
if (!pdu)
|
||
return -1;
|
||
int ret = nr_config_pusch_pdu(mac,
|
||
&tda_info,
|
||
&pdu->pusch_config_pdu,
|
||
dci,
|
||
&csi_report,
|
||
NULL,
|
||
dci_ind->rnti,
|
||
dci_ind->ss_type,
|
||
NR_UL_DCI_FORMAT_0_1);
|
||
LOG_D(NR_MAC_DCI,
|
||
"add ul dci harq %d for %d.%d %d.%d round %d\n",
|
||
pdu->pusch_config_pdu.pusch_data.harq_process_id,
|
||
frame,
|
||
slot,
|
||
frame_tx,
|
||
slot_tx,
|
||
0);
|
||
if (ret != 0)
|
||
remove_ul_config_last_item(pdu);
|
||
release_ul_config(pdu, false);
|
||
return ret;
|
||
}
|
||
|
||
static int nr_ue_process_dci_dl_10(NR_UE_MAC_INST_t *mac,
|
||
frame_t frame,
|
||
int slot,
|
||
dci_pdu_rel15_t *dci,
|
||
fapi_nr_dci_indication_pdu_t *dci_ind)
|
||
{
|
||
/*
|
||
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI
|
||
* 0 IDENTIFIER_DCI_FORMATS:
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 25 NDI:
|
||
* 26 RV:
|
||
* 27 HARQ_PROCESS_NUMBER:
|
||
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
|
||
* 33 TPC_PUCCH:
|
||
* 34 PUCCH_RESOURCE_IND:
|
||
* 35 PDSCH_TO_HARQ_FEEDBACK_TIME_IND:
|
||
* 55 RESERVED_NR_DCI
|
||
* with CRC scrambled by P-RNTI
|
||
* 8 SHORT_MESSAGE_IND
|
||
* 9 SHORT_MESSAGES
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 31 TB_SCALING
|
||
* 55 RESERVED_NR_DCI
|
||
* with CRC scrambled by SI-RNTI
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 26 RV:
|
||
* 55 RESERVED_NR_DCI
|
||
* with CRC scrambled by RA-RNTI
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 31 TB_SCALING
|
||
* 55 RESERVED_NR_DCI
|
||
* with CRC scrambled by TC-RNTI
|
||
* 0 IDENTIFIER_DCI_FORMATS:
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 24 MCS:
|
||
* 25 NDI:
|
||
* 26 RV:
|
||
* 27 HARQ_PROCESS_NUMBER:
|
||
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
|
||
* 33 TPC_PUCCH:
|
||
*/
|
||
|
||
fapi_nr_dl_config_request_t *dl_config = get_dl_config_request(mac, slot);
|
||
fapi_nr_dl_config_request_pdu_t *dl_conf_req = &dl_config->dl_config_list[dl_config->number_pdus];
|
||
dl_conf_req->dlsch_config_pdu.rnti = dci_ind->rnti;
|
||
|
||
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_pdu = &dl_conf_req->dlsch_config_pdu.dlsch_config_rel15;
|
||
|
||
dlsch_pdu->pduBitmap = 0;
|
||
NR_UE_DL_BWP_t *current_DL_BWP = mac->current_DL_BWP;
|
||
NR_PDSCH_Config_t *pdsch_config = (current_DL_BWP && !mac->get_sib1) ? current_DL_BWP->pdsch_Config : NULL;
|
||
if (dci_ind->ss_type == NR_SearchSpace__searchSpaceType_PR_common) {
|
||
dlsch_pdu->BWPSize =
|
||
mac->type0_PDCCH_CSS_config.num_rbs ? mac->type0_PDCCH_CSS_config.num_rbs : mac->sc_info.initial_dl_BWPSize;
|
||
dlsch_pdu->BWPStart = dci_ind->cset_start;
|
||
} else {
|
||
dlsch_pdu->BWPSize = current_DL_BWP->BWPSize;
|
||
dlsch_pdu->BWPStart = current_DL_BWP->BWPStart;
|
||
}
|
||
|
||
nr_rnti_type_t rnti_type = get_rnti_type(mac, dci_ind->rnti);
|
||
|
||
int mux_pattern = 1;
|
||
if (rnti_type == TYPE_SI_RNTI_) {
|
||
NR_Type0_PDCCH_CSS_config_t type0_PDCCH_CSS_config = mac->type0_PDCCH_CSS_config;
|
||
mux_pattern = type0_PDCCH_CSS_config.type0_pdcch_ss_mux_pattern;
|
||
dl_conf_req->pdu_type = FAPI_NR_DL_CONFIG_TYPE_SI_DLSCH;
|
||
// in MIB SCS is signaled as 15or60 and 30or120
|
||
dlsch_pdu->SubcarrierSpacing = mac->mib->subCarrierSpacingCommon;
|
||
if (mac->frequency_range == FR2)
|
||
dlsch_pdu->SubcarrierSpacing = mac->mib->subCarrierSpacingCommon + 2;
|
||
} else {
|
||
dlsch_pdu->SubcarrierSpacing = current_DL_BWP->scs;
|
||
if (rnti_type == TYPE_RA_RNTI_) {
|
||
if (nr_timer_is_active(&mac->ra.response_window_timer)) {
|
||
dl_conf_req->pdu_type = FAPI_NR_DL_CONFIG_TYPE_RA_DLSCH;
|
||
} else {
|
||
// Discard the DCI
|
||
return -1;
|
||
}
|
||
} else {
|
||
dl_conf_req->pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
|
||
}
|
||
}
|
||
|
||
dlsch_pdu->numCsiRsForRateMatching = 0;
|
||
int slots_frame = mac->frame_structure.numb_slots_frame;
|
||
configure_ratematching_csi(dlsch_pdu,
|
||
dl_config,
|
||
rnti_type,
|
||
frame,
|
||
slot,
|
||
dlsch_pdu->SubcarrierSpacing,
|
||
slots_frame,
|
||
pdsch_config,
|
||
mac->sc_info.csi_MeasConfig);
|
||
|
||
/* IDENTIFIER_DCI_FORMATS */
|
||
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
|
||
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,
|
||
dlsch_pdu,
|
||
NULL,
|
||
0,
|
||
dlsch_pdu->BWPSize,
|
||
0,
|
||
dci->frequency_domain_assignment)
|
||
< 0) {
|
||
LOG_W(MAC, "[%d.%d] Invalid frequency_domain_assignment. Possibly due to false DCI. Ignoring DCI!\n", frame, slot);
|
||
return -1;
|
||
}
|
||
|
||
dlsch_pdu->refPoint = mac->get_sib1 ? 1 : 0;
|
||
|
||
/* TIME_DOM_RESOURCE_ASSIGNMENT */
|
||
int dmrs_typeA_pos = mac->dmrs_TypeA_Position;
|
||
const int coreset_type = dci_ind->coreset_type == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG; // 0 for coreset0, 1 otherwise;
|
||
|
||
|
||
NR_tda_info_t tda_info = get_dl_tda_info(current_DL_BWP,
|
||
dci_ind->ss_type,
|
||
dci->time_domain_assignment.val,
|
||
dmrs_typeA_pos,
|
||
mux_pattern,
|
||
rnti_type,
|
||
coreset_type,
|
||
mac->get_sib1);
|
||
if (!tda_info.valid_tda)
|
||
return -1;
|
||
|
||
dlsch_pdu->number_symbols = tda_info.nrOfSymbols;
|
||
dlsch_pdu->start_symbol = tda_info.startSymbolIndex;
|
||
|
||
struct NR_DMRS_DownlinkConfig *dl_dmrs_config = NULL;
|
||
if (pdsch_config)
|
||
dl_dmrs_config = (tda_info.mapping_type == typeA) ? pdsch_config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup
|
||
: pdsch_config->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup;
|
||
|
||
dlsch_pdu->nscid = 0;
|
||
if (dl_dmrs_config && dl_dmrs_config->scramblingID0)
|
||
dlsch_pdu->dlDmrsScramblingId = *dl_dmrs_config->scramblingID0;
|
||
else
|
||
dlsch_pdu->dlDmrsScramblingId = mac->physCellId;
|
||
|
||
if (rnti_type == TYPE_C_RNTI_
|
||
&& dci_ind->ss_type != NR_SearchSpace__searchSpaceType_PR_common
|
||
&& pdsch_config->dataScramblingIdentityPDSCH)
|
||
dlsch_pdu->dlDataScramblingId = *pdsch_config->dataScramblingIdentityPDSCH;
|
||
else
|
||
dlsch_pdu->dlDataScramblingId = mac->physCellId;
|
||
|
||
/* dmrs symbol positions*/
|
||
dlsch_pdu->dlDmrsSymbPos = fill_dmrs_mask(pdsch_config,
|
||
NR_DL_DCI_FORMAT_1_0,
|
||
mac->dmrs_TypeA_Position,
|
||
dlsch_pdu->number_symbols,
|
||
dlsch_pdu->start_symbol,
|
||
tda_info.mapping_type,
|
||
1);
|
||
|
||
dlsch_pdu->dmrsConfigType = (dl_dmrs_config != NULL) ? (dl_dmrs_config->dmrs_Type == NULL ? 0 : 1) : 0;
|
||
|
||
/* number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214 version 15.9.0 Release 15 */
|
||
if (dlsch_pdu->number_symbols == 2)
|
||
dlsch_pdu->n_dmrs_cdm_groups = 1;
|
||
else
|
||
dlsch_pdu->n_dmrs_cdm_groups = 2;
|
||
dlsch_pdu->dmrs_ports = 1; // only port 0 in case of DCI 1_0
|
||
/* VRB_TO_PRB_MAPPING */
|
||
dlsch_pdu->vrb_to_prb_mapping =
|
||
(dci->vrb_to_prb_mapping.val == 0) ? vrb_to_prb_mapping_non_interleaved : vrb_to_prb_mapping_interleaved;
|
||
/* MCS TABLE INDEX */
|
||
dlsch_pdu->mcs_table = get_dlsch_mcs_table(NR_DL_DCI_FORMAT_1_0,
|
||
rnti_type,
|
||
dci_ind->ss_type,
|
||
pdsch_config ? pdsch_config->mcs_Table : NULL,
|
||
NULL, // SPS not implemented,
|
||
false, // as above
|
||
NULL); // MCS-C-RNTI not implemented
|
||
/* MCS */
|
||
dlsch_pdu->mcs = dci->mcs;
|
||
|
||
NR_UE_DL_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[dci->harq_pid.val];
|
||
/* NDI (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
|
||
if (dl_conf_req->pdu_type == FAPI_NR_DL_CONFIG_TYPE_SI_DLSCH ||
|
||
dl_conf_req->pdu_type == FAPI_NR_DL_CONFIG_TYPE_RA_DLSCH ||
|
||
dci->ndi != current_harq->last_ndi) {
|
||
// new data
|
||
dlsch_pdu->new_data_indicator = true;
|
||
current_harq->R = 0;
|
||
current_harq->TBS = 0;
|
||
} else {
|
||
dlsch_pdu->new_data_indicator = false;
|
||
}
|
||
|
||
if (dl_conf_req->pdu_type != FAPI_NR_DL_CONFIG_TYPE_SI_DLSCH &&
|
||
dl_conf_req->pdu_type != FAPI_NR_DL_CONFIG_TYPE_RA_DLSCH) {
|
||
current_harq->last_ndi = dci->ndi;
|
||
}
|
||
|
||
dlsch_pdu->qamModOrder = nr_get_Qm_dl(dlsch_pdu->mcs, dlsch_pdu->mcs_table);
|
||
if (dlsch_pdu->qamModOrder == 0) {
|
||
LOG_W(MAC, "Invalid code rate or Mod order, likely due to unexpected DL DCI.\n");
|
||
return -1;
|
||
}
|
||
|
||
int R = nr_get_code_rate_dl(dlsch_pdu->mcs, dlsch_pdu->mcs_table);
|
||
if (R > 0) {
|
||
dlsch_pdu->targetCodeRate = R;
|
||
int nb_rb_oh;
|
||
if (mac->sc_info.xOverhead_PDSCH)
|
||
nb_rb_oh = 6 * (1 + *mac->sc_info.xOverhead_PDSCH);
|
||
else
|
||
nb_rb_oh = 0;
|
||
int nb_re_dmrs = ((dlsch_pdu->dmrsConfigType == NFAPI_NR_DMRS_TYPE1) ? 6 : 4) * dlsch_pdu->n_dmrs_cdm_groups;
|
||
dlsch_pdu->TBS = nr_compute_tbs(dlsch_pdu->qamModOrder,
|
||
R,
|
||
dlsch_pdu->number_rbs,
|
||
dlsch_pdu->number_symbols,
|
||
nb_re_dmrs * get_num_dmrs(dlsch_pdu->dlDmrsSymbPos),
|
||
nb_rb_oh,
|
||
0,
|
||
1);
|
||
// storing for possible retransmissions
|
||
current_harq->R = dlsch_pdu->targetCodeRate;
|
||
if (!dlsch_pdu->new_data_indicator && current_harq->TBS != dlsch_pdu->TBS) {
|
||
LOG_W(NR_MAC, "NDI indicates re-transmission but computed TBS %d doesn't match with what previously stored %d\n",
|
||
dlsch_pdu->TBS, current_harq->TBS);
|
||
dlsch_pdu->new_data_indicator = true; // treated as new data
|
||
}
|
||
current_harq->TBS = dlsch_pdu->TBS;
|
||
}
|
||
else {
|
||
dlsch_pdu->targetCodeRate = current_harq->R;
|
||
dlsch_pdu->TBS = current_harq->TBS;
|
||
}
|
||
|
||
dlsch_pdu->ldpcBaseGraph = get_BG(dlsch_pdu->TBS, dlsch_pdu->targetCodeRate);
|
||
|
||
if (dlsch_pdu->TBS == 0) {
|
||
LOG_E(MAC, "Invalid TBS = 0. Probably caused by missed detection of DCI\n");
|
||
return -1;
|
||
}
|
||
|
||
int bw_tbslbrm = current_DL_BWP ? mac->sc_info.dl_bw_tbslbrm : dlsch_pdu->BWPSize;
|
||
dlsch_pdu->tbslbrm = nr_compute_tbslbrm(dlsch_pdu->mcs_table, bw_tbslbrm, 1);
|
||
|
||
/* RV (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
|
||
dlsch_pdu->rv = dci->rv;
|
||
/* HARQ_PROCESS_NUMBER (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
|
||
dlsch_pdu->harq_process_nbr = dci->harq_pid.val;
|
||
/* TB_SCALING (only if CRC scrambled by P-RNTI or RA-RNTI) */
|
||
// according to TS 38.214 Table 5.1.3.2-3
|
||
if (dci->tb_scaling > 3) {
|
||
LOG_E(MAC, "invalid tb_scaling %d\n", dci->tb_scaling);
|
||
return -1;
|
||
}
|
||
const float factor[] = {1, 0.5, 0.25, 0};
|
||
dlsch_pdu->scaling_factor_S = factor[dci->tb_scaling];
|
||
/* TPC_PUCCH (only if CRC scrambled by C-RNTI or CS-RNTI or new-RNTI or TC-RNTI)*/
|
||
// according to TS 38.213 Table 7.2.1-1
|
||
if (dci->tpc > 3) {
|
||
LOG_E(MAC, "invalid tpc %d\n", dci->tpc);
|
||
return -1;
|
||
}
|
||
|
||
// Sanity check for pucch_resource_indicator value received to check for false DCI.
|
||
bool valid = false;
|
||
NR_PUCCH_Config_t *pucch_Config = mac->current_UL_BWP ? mac->current_UL_BWP->pucch_Config : NULL;
|
||
|
||
if (pucch_Config && pucch_Config->resourceSetToAddModList) {
|
||
int pucch_res_set_cnt = pucch_Config->resourceSetToAddModList->list.count;
|
||
for (int id = 0; id < pucch_res_set_cnt; id++) {
|
||
if (dci->pucch_resource_indicator < pucch_Config->resourceSetToAddModList->list.array[id]->resourceList.list.count) {
|
||
valid = true;
|
||
break;
|
||
}
|
||
}
|
||
} else
|
||
valid = true;
|
||
if (!valid) {
|
||
LOG_W(MAC,
|
||
"[%d.%d] pucch_resource_indicator value %d is out of bounds. Possibly due to false DCI. Ignoring DCI!\n",
|
||
frame,
|
||
slot,
|
||
dci->pucch_resource_indicator);
|
||
return -1;
|
||
}
|
||
|
||
/* PDSCH_TO_HARQ_FEEDBACK_TIME_IND */
|
||
// according to TS 38.213 9.2.3
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing);
|
||
uint16_t feedback_ti = 0;
|
||
|
||
if (rnti_type == TYPE_RA_RNTI_) {
|
||
// RA-RNTI indicates RAR. Ensure we can decode RAR before the earliest UL scheduler call
|
||
// that can process the MSG3. Also assume that RAR is sent in the same slot as DCI (k0 == 0)
|
||
// This is not perfect as the MSG3 might end up being scheduled later, so we could be
|
||
// halting the UL scheduler for a longer time than necessary.
|
||
feedback_ti = max(1 + GET_DURATION_RX_TO_TX(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing),
|
||
get_delta_for_k2(mac->current_UL_BWP->scs) + get_j_for_k2(mac->current_UL_BWP->scs));
|
||
}
|
||
|
||
if (rnti_type != TYPE_RA_RNTI_ && rnti_type != TYPE_SI_RNTI_) {
|
||
if (!get_FeedbackDisabled(mac->sc_info.downlinkHARQ_FeedbackDisabled_r17, dci->harq_pid.val)) {
|
||
feedback_ti = 1 + dci->pdsch_to_harq_feedback_timing_indicator.val + ntn_ue_koffset;
|
||
AssertFatal(feedback_ti >= GET_DURATION_RX_TO_TX(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing),
|
||
"PDSCH to HARQ feedback time (%d) needs to be higher than DURATION_RX_TO_TX (%ld).\n",
|
||
feedback_ti,
|
||
GET_DURATION_RX_TO_TX(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing));
|
||
// set the harq status at MAC for feedback
|
||
const int tpc[] = {-1, 0, 1, 3};
|
||
set_harq_status(mac,
|
||
dci->pucch_resource_indicator,
|
||
dci->harq_pid.val,
|
||
tpc[dci->tpc],
|
||
feedback_ti,
|
||
dci->dai[0].val,
|
||
dci_ind->n_CCE,
|
||
dci_ind->N_CCE,
|
||
frame,
|
||
slot);
|
||
}
|
||
if (dlsch_pdu->new_data_indicator)
|
||
current_harq->round = 0;
|
||
else
|
||
current_harq->round++;
|
||
if (current_harq->round < sizeofArray(mac->stats.dl.rounds))
|
||
mac->stats.dl.rounds[current_harq->round]++;
|
||
}
|
||
|
||
LOG_D(MAC,
|
||
"(nr_ue_procedures.c) rnti = %x dl_config->number_pdus = %d\n",
|
||
dl_conf_req->dlsch_config_pdu.rnti,
|
||
dl_config->number_pdus);
|
||
LOG_D(MAC,
|
||
"(nr_ue_procedures.c) frequency_domain_resource_assignment=%d \t number_rbs=%d \t start_rb=%d\n",
|
||
dci->frequency_domain_assignment.val,
|
||
dlsch_pdu->number_rbs,
|
||
dlsch_pdu->start_rb);
|
||
LOG_D(MAC,
|
||
"(nr_ue_procedures.c) time_domain_resource_assignment=%d \t number_symbols=%d \t start_symbol=%d\n",
|
||
dci->time_domain_assignment.val,
|
||
dlsch_pdu->number_symbols,
|
||
dlsch_pdu->start_symbol);
|
||
LOG_D(MAC,
|
||
"(nr_ue_procedures.c) vrb_to_prb_mapping=%d \n>>> mcs=%d\n>>> ndi=%d\n>>> rv=%d\n>>> harq_process_nbr=%d\n>>> dai=%d\n>>> "
|
||
"scaling_factor_S=%f\n>>> tpc_pucch=%d\n>>> pucch_res_ind=%d\n>>> pdsch_to_harq_feedback_time_ind=%d\n",
|
||
dlsch_pdu->vrb_to_prb_mapping,
|
||
dlsch_pdu->mcs,
|
||
dlsch_pdu->new_data_indicator,
|
||
dlsch_pdu->rv,
|
||
dlsch_pdu->harq_process_nbr,
|
||
dci->dai[0].val,
|
||
dlsch_pdu->scaling_factor_S,
|
||
dci->tpc,
|
||
dci->pucch_resource_indicator,
|
||
feedback_ti);
|
||
|
||
dlsch_pdu->k1_feedback = feedback_ti;
|
||
|
||
LOG_D(MAC, "(nr_ue_procedures.c) pdu_type=%d\n\n", dl_conf_req->pdu_type);
|
||
|
||
// the prepared dci is valid, we add it in the list
|
||
dl_config->number_pdus++;
|
||
return 0;
|
||
}
|
||
|
||
static int nr_ue_process_dci_dl_11(NR_UE_MAC_INST_t *mac,
|
||
frame_t frame,
|
||
int slot,
|
||
dci_pdu_rel15_t *dci,
|
||
fapi_nr_dci_indication_pdu_t *dci_ind)
|
||
{
|
||
/*
|
||
* with CRC scrambled by C-RNTI or CS-RNTI or new-RNTI
|
||
* 0 IDENTIFIER_DCI_FORMATS:
|
||
* 1 CARRIER_IND:
|
||
* 7 BANDWIDTH_PART_IND:
|
||
* 11 FREQ_DOM_RESOURCE_ASSIGNMENT_DL:
|
||
* 12 TIME_DOM_RESOURCE_ASSIGNMENT: 0, 1, 2, 3, or 4 bits as defined in Subclause 5.1.2.1 of [6, TS 38.214]. The bitwidth for this field is determined as log2(I) bits,
|
||
* 13 VRB_TO_PRB_MAPPING: 0 bit if only resource allocation type 0
|
||
* 14 PRB_BUNDLING_SIZE_IND:
|
||
* 15 RATE_MATCHING_IND:
|
||
* 16 ZP_CSI_RS_TRIGGER:
|
||
* 18 TB1_MCS:
|
||
* 19 TB1_NDI:
|
||
* 20 TB1_RV:
|
||
* 21 TB2_MCS:
|
||
* 22 TB2_NDI:
|
||
* 23 TB2_RV:
|
||
* 27 HARQ_PROCESS_NUMBER:
|
||
* 28 DAI_: For format1_1: 4 if more than one serving cell are configured in the DL and the higher layer parameter HARQ-ACK-codebook=dynamic, where the 2 MSB bits are the counter DAI and the 2 LSB bits are the total DAI
|
||
* 33 TPC_PUCCH:
|
||
* 34 PUCCH_RESOURCE_IND:
|
||
* 35 PDSCH_TO_HARQ_FEEDBACK_TIME_IND:
|
||
* 38 ANTENNA_PORTS:
|
||
* 39 TCI:
|
||
* 40 SRS_REQUEST:
|
||
* 43 CBGTI:
|
||
* 44 CBGFI:
|
||
* 47 DMRS_SEQ_INI:
|
||
*/
|
||
|
||
if (dci->bwp_indicator.val > NR_MAX_NUM_BWP) {
|
||
LOG_W(NR_MAC,
|
||
"[%d.%d] bwp_indicator %d > NR_MAX_NUM_BWP Possibly due to false DCI. Ignoring DCI!\n",
|
||
frame,
|
||
slot,
|
||
dci->bwp_indicator.val);
|
||
return -1;
|
||
}
|
||
NR_UE_DL_BWP_t *current_DL_BWP = mac->current_DL_BWP;
|
||
NR_PDSCH_Config_t *pdsch_Config = current_DL_BWP->pdsch_Config;
|
||
fapi_nr_dl_config_request_t *dl_config = get_dl_config_request(mac, slot);
|
||
fapi_nr_dl_config_request_pdu_t *dl_conf_req = &dl_config->dl_config_list[dl_config->number_pdus];
|
||
|
||
dl_conf_req->dlsch_config_pdu.rnti = dci_ind->rnti;
|
||
|
||
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_pdu = &dl_conf_req->dlsch_config_pdu.dlsch_config_rel15;
|
||
|
||
dlsch_pdu->BWPSize = current_DL_BWP->BWPSize;
|
||
dlsch_pdu->BWPStart = current_DL_BWP->BWPStart;
|
||
dlsch_pdu->SubcarrierSpacing = current_DL_BWP->scs;
|
||
|
||
nr_rnti_type_t rnti_type = get_rnti_type(mac, dci_ind->rnti);
|
||
dlsch_pdu->numCsiRsForRateMatching = 0;
|
||
int slots_frame = mac->frame_structure.numb_slots_frame;
|
||
configure_ratematching_csi(dlsch_pdu,
|
||
dl_config,
|
||
rnti_type,
|
||
frame,
|
||
slot,
|
||
current_DL_BWP->scs,
|
||
slots_frame,
|
||
pdsch_Config,
|
||
mac->sc_info.csi_MeasConfig);
|
||
|
||
/* IDENTIFIER_DCI_FORMATS */
|
||
/* CARRIER_IND */
|
||
/* BANDWIDTH_PART_IND */
|
||
// dlsch_pdu->bandwidth_part_ind = dci->bandwidth_part_ind;
|
||
/* FREQ_DOM_RESOURCE_ASSIGNMENT_DL */
|
||
if (nr_ue_process_dci_freq_dom_resource_assignment(NULL,
|
||
dlsch_pdu,
|
||
pdsch_Config,
|
||
0,
|
||
current_DL_BWP->BWPSize,
|
||
current_DL_BWP->BWPStart,
|
||
dci->frequency_domain_assignment)
|
||
< 0) {
|
||
LOG_W(MAC, "[%d.%d] Invalid frequency_domain_assignment. Possibly due to false DCI. Ignoring DCI!\n", frame, slot);
|
||
return -1;
|
||
}
|
||
dlsch_pdu->refPoint = 0;
|
||
/* TIME_DOM_RESOURCE_ASSIGNMENT */
|
||
int dmrs_typeA_pos = mac->dmrs_TypeA_Position;
|
||
int mux_pattern = 1;
|
||
const int coreset_type = dci_ind->coreset_type == NFAPI_NR_CSET_CONFIG_PDCCH_CONFIG; // 0 for coreset0, 1 otherwise;
|
||
|
||
NR_tda_info_t tda_info = get_dl_tda_info(current_DL_BWP,
|
||
dci_ind->ss_type,
|
||
dci->time_domain_assignment.val,
|
||
dmrs_typeA_pos,
|
||
mux_pattern,
|
||
rnti_type,
|
||
coreset_type,
|
||
false);
|
||
if (!tda_info.valid_tda)
|
||
return -1;
|
||
|
||
dlsch_pdu->number_symbols = tda_info.nrOfSymbols;
|
||
dlsch_pdu->start_symbol = tda_info.startSymbolIndex;
|
||
|
||
struct NR_DMRS_DownlinkConfig *dl_dmrs_config = (tda_info.mapping_type == typeA)
|
||
? pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup
|
||
: pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeB->choice.setup;
|
||
|
||
switch (dci->dmrs_sequence_initialization.val) {
|
||
case 0:
|
||
dlsch_pdu->nscid = 0;
|
||
if (dl_dmrs_config->scramblingID0)
|
||
dlsch_pdu->dlDmrsScramblingId = *dl_dmrs_config->scramblingID0;
|
||
else
|
||
dlsch_pdu->dlDmrsScramblingId = mac->physCellId;
|
||
break;
|
||
case 1:
|
||
dlsch_pdu->nscid = 1;
|
||
if (dl_dmrs_config->scramblingID1)
|
||
dlsch_pdu->dlDmrsScramblingId = *dl_dmrs_config->scramblingID1;
|
||
else
|
||
dlsch_pdu->dlDmrsScramblingId = mac->physCellId;
|
||
break;
|
||
default:
|
||
LOG_E(MAC, "Invalid dmrs sequence initialization value %d\n", dci->dmrs_sequence_initialization.val);
|
||
return -1;
|
||
}
|
||
|
||
if (pdsch_Config->dataScramblingIdentityPDSCH)
|
||
dlsch_pdu->dlDataScramblingId = *pdsch_Config->dataScramblingIdentityPDSCH;
|
||
else
|
||
dlsch_pdu->dlDataScramblingId = mac->physCellId;
|
||
|
||
dlsch_pdu->dmrsConfigType = dl_dmrs_config->dmrs_Type == NULL ? NFAPI_NR_DMRS_TYPE1 : NFAPI_NR_DMRS_TYPE2;
|
||
|
||
/* TODO: fix number of DM-RS CDM groups without data according to subclause 5.1.6.2 of 3GPP TS 38.214,
|
||
using tables 7.3.1.2.2-1, 7.3.1.2.2-2, 7.3.1.2.2-3, 7.3.1.2.2-4 of 3GPP TS 38.212 */
|
||
dlsch_pdu->n_dmrs_cdm_groups = 1;
|
||
/* VRB_TO_PRB_MAPPING */
|
||
if ((pdsch_Config->resourceAllocation == 1) && (pdsch_Config->vrb_ToPRB_Interleaver != NULL))
|
||
dlsch_pdu->vrb_to_prb_mapping =
|
||
(dci->vrb_to_prb_mapping.val == 0) ? vrb_to_prb_mapping_non_interleaved : vrb_to_prb_mapping_interleaved;
|
||
/* PRB_BUNDLING_SIZE_IND */
|
||
dlsch_pdu->prb_bundling_size_ind = dci->prb_bundling_size_indicator.val;
|
||
/* RATE_MATCHING_IND */
|
||
dlsch_pdu->rate_matching_ind = dci->rate_matching_indicator.val;
|
||
/* ZP_CSI_RS_TRIGGER */
|
||
dlsch_pdu->zp_csi_rs_trigger = dci->zp_csi_rs_trigger.val;
|
||
/* MCS (for transport block 1)*/
|
||
dlsch_pdu->mcs = dci->mcs;
|
||
/* NDI (for transport block 1)*/
|
||
NR_UE_DL_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[dci->harq_pid.val];
|
||
if (dci->ndi != current_harq->last_ndi) {
|
||
// new data
|
||
dlsch_pdu->new_data_indicator = true;
|
||
current_harq->R = 0;
|
||
current_harq->TBS = 0;
|
||
}
|
||
else {
|
||
dlsch_pdu->new_data_indicator = false;
|
||
}
|
||
current_harq->last_ndi = dci->ndi;
|
||
/* RV (for transport block 1)*/
|
||
dlsch_pdu->rv = dci->rv;
|
||
/* MCS (for transport block 2)*/
|
||
dlsch_pdu->tb2_mcs = dci->mcs2.val;
|
||
/* NDI (for transport block 2)*/
|
||
dlsch_pdu->tb2_new_data_indicator = dci->ndi2.val;
|
||
/* RV (for transport block 2)*/
|
||
dlsch_pdu->tb2_rv = dci->rv2.val;
|
||
/* HARQ_PROCESS_NUMBER */
|
||
dlsch_pdu->harq_process_nbr = dci->harq_pid.val;
|
||
/* TPC_PUCCH */
|
||
// according to TS 38.213 Table 7.2.1-1
|
||
if (dci->tpc > 3) {
|
||
LOG_E(MAC, "invalid tpc %d\n", dci->tpc);
|
||
return -1;
|
||
}
|
||
|
||
// Sanity check for pucch_resource_indicator value received to check for false DCI.
|
||
bool valid = false;
|
||
NR_PUCCH_Config_t *pucch_Config = mac->current_UL_BWP->pucch_Config;
|
||
int pucch_res_set_cnt = pucch_Config->resourceSetToAddModList->list.count;
|
||
for (int id = 0; id < pucch_res_set_cnt; id++) {
|
||
if (dci->pucch_resource_indicator < pucch_Config->resourceSetToAddModList->list.array[id]->resourceList.list.count) {
|
||
valid = true;
|
||
break;
|
||
}
|
||
}
|
||
if (!valid) {
|
||
LOG_W(MAC,
|
||
"[%d.%d] pucch_resource_indicator value %d is out of bounds. Possibly due to false DCI. Ignoring DCI!\n",
|
||
frame,
|
||
slot,
|
||
dci->pucch_resource_indicator);
|
||
return -1;
|
||
}
|
||
|
||
/* ANTENNA_PORTS */
|
||
uint8_t n_codewords = 1; // FIXME!!!
|
||
long *max_length = dl_dmrs_config->maxLength;
|
||
long *dmrs_type = dl_dmrs_config->dmrs_Type;
|
||
|
||
dlsch_pdu->n_front_load_symb = 1; // default value
|
||
set_antenna_port_parameters(dlsch_pdu, n_codewords, max_length, dmrs_type, dci->antenna_ports.val);
|
||
|
||
/* dmrs symbol positions*/
|
||
dlsch_pdu->dlDmrsSymbPos = fill_dmrs_mask(pdsch_Config,
|
||
NR_DL_DCI_FORMAT_1_1,
|
||
mac->dmrs_TypeA_Position,
|
||
dlsch_pdu->number_symbols,
|
||
dlsch_pdu->start_symbol,
|
||
tda_info.mapping_type,
|
||
dlsch_pdu->n_front_load_symb);
|
||
|
||
/* TCI */
|
||
if (dl_conf_req->dci_config_pdu.dci_config_rel15.coreset.tci_present_in_dci == 1) {
|
||
// 0 bit if higher layer parameter tci-PresentInDCI is not enabled
|
||
// otherwise 3 bits as defined in Subclause 5.1.5 of [6, TS38.214]
|
||
dlsch_pdu->tci_state = dci->transmission_configuration_indication.val;
|
||
}
|
||
|
||
/* SRS_REQUEST */
|
||
AssertFatal(dci->srs_request.nbits == 2, "If SUL is supported in the cell, there is an additional bit in SRS request field\n");
|
||
if (dci->srs_request.val > 0)
|
||
nr_ue_aperiodic_srs_scheduling(mac, dci->srs_request.val, frame, slot);
|
||
/* CBGTI */
|
||
dlsch_pdu->cbgti = dci->cbgti.val;
|
||
/* CBGFI */
|
||
dlsch_pdu->codeBlockGroupFlushIndicator = dci->cbgfi.val;
|
||
/* DMRS_SEQ_INI */
|
||
// FIXME!!!
|
||
|
||
/* PDSCH_TO_HARQ_FEEDBACK_TIME_IND */
|
||
// according to TS 38.213 Table 9.2.3-1
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing);
|
||
uint16_t feedback_ti = 0;
|
||
|
||
if (!get_FeedbackDisabled(mac->sc_info.downlinkHARQ_FeedbackDisabled_r17, dci->harq_pid.val)) {
|
||
feedback_ti = pucch_Config->dl_DataToUL_ACK->list.array[dci->pdsch_to_harq_feedback_timing_indicator.val][0] + ntn_ue_koffset;
|
||
AssertFatal(feedback_ti >= GET_DURATION_RX_TO_TX(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing),
|
||
"PDSCH to HARQ feedback time (%d) needs to be higher than DURATION_RX_TO_TX (%ld). Min feedback time set in config "
|
||
"file (min_rxtxtime).\n",
|
||
feedback_ti,
|
||
GET_DURATION_RX_TO_TX(&mac->phy_config.config_req.ntn_config, dlsch_pdu->SubcarrierSpacing));
|
||
|
||
// set the harq status at MAC for feedback
|
||
const int tpc[] = {-1, 0, 1, 3};
|
||
set_harq_status(mac,
|
||
dci->pucch_resource_indicator,
|
||
dci->harq_pid.val,
|
||
tpc[dci->tpc],
|
||
feedback_ti,
|
||
dci->dai[0].val,
|
||
dci_ind->n_CCE,
|
||
dci_ind->N_CCE,
|
||
frame,
|
||
slot);
|
||
}
|
||
if (dlsch_pdu->new_data_indicator)
|
||
current_harq->round = 0;
|
||
else
|
||
current_harq->round++;
|
||
if (current_harq->round < sizeofArray(mac->stats.dl.rounds))
|
||
mac->stats.dl.rounds[current_harq->round]++;
|
||
// send the ack/nack slot number to phy to indicate tx thread to wait for DLSCH decoding
|
||
dlsch_pdu->k1_feedback = feedback_ti;
|
||
|
||
dlsch_pdu->mcs_table = get_dlsch_mcs_table(NR_DL_DCI_FORMAT_1_1,
|
||
rnti_type,
|
||
dci_ind->ss_type,
|
||
pdsch_Config ? pdsch_Config->mcs_Table : NULL,
|
||
NULL, // SPS not implemented,
|
||
false, // as above
|
||
NULL); // MCS-C-RNTI not implemented
|
||
dlsch_pdu->qamModOrder = nr_get_Qm_dl(dlsch_pdu->mcs, dlsch_pdu->mcs_table);
|
||
if (dlsch_pdu->qamModOrder == 0) {
|
||
LOG_W(MAC, "Invalid code rate or Mod order, likely due to unexpected DL DCI.\n");
|
||
return -1;
|
||
}
|
||
uint8_t Nl = 0;
|
||
for (int i = 0; i < 12; i++) { // max 12 ports
|
||
if ((dlsch_pdu->dmrs_ports >> i) & 0x01)
|
||
Nl += 1;
|
||
}
|
||
|
||
NR_UE_ServingCell_Info_t *sc_info = &mac->sc_info;
|
||
int nb_rb_oh;
|
||
if (sc_info->xOverhead_PDSCH)
|
||
nb_rb_oh = 6 * (1 + *sc_info->xOverhead_PDSCH);
|
||
else
|
||
nb_rb_oh = 0;
|
||
int nb_re_dmrs = ((dmrs_type == NULL) ? 6 : 4) * dlsch_pdu->n_dmrs_cdm_groups;
|
||
|
||
int R = nr_get_code_rate_dl(dlsch_pdu->mcs, dlsch_pdu->mcs_table);
|
||
if (R > 0) {
|
||
dlsch_pdu->targetCodeRate = R;
|
||
dlsch_pdu->TBS = nr_compute_tbs(dlsch_pdu->qamModOrder,
|
||
R,
|
||
dlsch_pdu->number_rbs,
|
||
dlsch_pdu->number_symbols,
|
||
nb_re_dmrs * get_num_dmrs(dlsch_pdu->dlDmrsSymbPos),
|
||
nb_rb_oh,
|
||
0,
|
||
Nl);
|
||
// storing for possible retransmissions
|
||
if (!dlsch_pdu->new_data_indicator && current_harq->TBS != dlsch_pdu->TBS) {
|
||
LOG_W(NR_MAC, "NDI indicates re-transmission but computed TBS %d doesn't match with what previously stored %d\n",
|
||
dlsch_pdu->TBS, current_harq->TBS);
|
||
dlsch_pdu->new_data_indicator = true; // treated as new data
|
||
}
|
||
current_harq->R = dlsch_pdu->targetCodeRate;
|
||
current_harq->TBS = dlsch_pdu->TBS;
|
||
}
|
||
else {
|
||
dlsch_pdu->targetCodeRate = current_harq->R;
|
||
dlsch_pdu->TBS = current_harq->TBS;
|
||
}
|
||
|
||
dlsch_pdu->ldpcBaseGraph = get_BG(dlsch_pdu->TBS, dlsch_pdu->targetCodeRate);
|
||
|
||
if (dlsch_pdu->TBS == 0) {
|
||
LOG_E(MAC, "Invalid TBS = 0. Probably caused by missed detection of DCI\n");
|
||
return -1;
|
||
}
|
||
|
||
// TBS_LBRM according to section 5.4.2.1 of 38.212
|
||
int max_mimo_layers = 0;
|
||
if (sc_info->maxMIMO_Layers_PDSCH)
|
||
max_mimo_layers = *sc_info->maxMIMO_Layers_PDSCH;
|
||
else
|
||
max_mimo_layers = mac->uecap_maxMIMO_PDSCH_layers;
|
||
AssertFatal(max_mimo_layers > 0, "Invalid number of max MIMO layers for PDSCH\n");
|
||
int nl_tbslbrm = max_mimo_layers < 4 ? max_mimo_layers : 4;
|
||
dlsch_pdu->tbslbrm = nr_compute_tbslbrm(dlsch_pdu->mcs_table, sc_info->dl_bw_tbslbrm, nl_tbslbrm);
|
||
/*PTRS configuration */
|
||
dlsch_pdu->pduBitmap = 0;
|
||
if (pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->phaseTrackingRS != NULL) {
|
||
bool valid_ptrs_setup =
|
||
set_dl_ptrs_values(pdsch_Config->dmrs_DownlinkForPDSCH_MappingTypeA->choice.setup->phaseTrackingRS->choice.setup,
|
||
dlsch_pdu->number_rbs,
|
||
dlsch_pdu->mcs,
|
||
dlsch_pdu->mcs_table,
|
||
&dlsch_pdu->PTRSFreqDensity,
|
||
&dlsch_pdu->PTRSTimeDensity,
|
||
&dlsch_pdu->PTRSPortIndex,
|
||
&dlsch_pdu->nEpreRatioOfPDSCHToPTRS,
|
||
&dlsch_pdu->PTRSReOffset,
|
||
dlsch_pdu->number_symbols);
|
||
if (valid_ptrs_setup == true) {
|
||
dlsch_pdu->pduBitmap |= 0x1;
|
||
LOG_D(MAC, "DL PTRS values: PTRS time den: %d, PTRS freq den: %d\n", dlsch_pdu->PTRSTimeDensity, dlsch_pdu->PTRSFreqDensity);
|
||
}
|
||
}
|
||
// the prepared dci is valid, we add it in the list
|
||
dl_conf_req->pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
|
||
dl_config->number_pdus++; // The DCI configuration is valid, we add it in the list
|
||
return 0;
|
||
}
|
||
|
||
static int8_t nr_ue_process_dci(NR_UE_MAC_INST_t *mac,
|
||
frame_t frame,
|
||
int slot,
|
||
dci_pdu_rel15_t *dci,
|
||
fapi_nr_dci_indication_pdu_t *dci_ind,
|
||
const nr_dci_format_t format)
|
||
{
|
||
const char *dci_formats[] = {"1_0", "1_1", "2_0", "2_1", "2_2", "2_3", "0_0", "0_1"};
|
||
LOG_D(MAC, "Processing received DCI format %s\n", dci_formats[format]);
|
||
|
||
switch (format) {
|
||
case NR_UL_DCI_FORMAT_0_0:
|
||
return nr_ue_process_dci_ul_00(mac, frame, slot, dci, dci_ind);
|
||
break;
|
||
|
||
case NR_UL_DCI_FORMAT_0_1:
|
||
return nr_ue_process_dci_ul_01(mac, frame, slot, dci, dci_ind);
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_1_0:
|
||
return nr_ue_process_dci_dl_10(mac, frame, slot, dci, dci_ind);
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_1_1:
|
||
return nr_ue_process_dci_dl_11(mac, frame, slot, dci, dci_ind);
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_2_0:
|
||
AssertFatal(false, "DCI Format 2-0 handling not implemented\n");
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_2_1:
|
||
AssertFatal(false, "DCI Format 2-1 handling not implemented\n");
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_2_2:
|
||
AssertFatal(false, "DCI Format 2-2 handling not implemented\n");
|
||
break;
|
||
|
||
case NR_DL_DCI_FORMAT_2_3:
|
||
AssertFatal(false, "DCI Format 2-3 handling not implemented\n");
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
nr_dci_format_t nr_ue_process_dci_indication_pdu(NR_UE_MAC_INST_t *mac, frame_t frame, int slot, fapi_nr_dci_indication_pdu_t *dci)
|
||
{
|
||
LOG_D(NR_MAC,
|
||
"Received dci indication (rnti %x, dci format %d, n_CCE %d, payloadSize %d, payload %llx)\n",
|
||
dci->rnti,
|
||
dci->dci_format,
|
||
dci->n_CCE,
|
||
dci->payloadSize,
|
||
*(unsigned long long *)dci->payloadBits);
|
||
const nr_dci_format_t format =
|
||
nr_extract_dci_info(mac, dci->dci_format, dci->payloadSize, dci->rnti, dci->ss_type, dci->payloadBits, slot);
|
||
if (format == NR_DCI_NONE)
|
||
return NR_DCI_NONE;
|
||
int ret = nr_ue_process_dci(mac, frame, slot, mac->def_dci_pdu_rel15[slot] + format, dci, format);
|
||
if (ret < 0) {
|
||
mac->stats.bad_dci++;
|
||
return NR_DCI_NONE;
|
||
}
|
||
return format;
|
||
}
|
||
|
||
void nr_ue_process_l1_measurements(NR_UE_MAC_INST_t *mac, frame_t frame, int slot, fapi_nr_l1_measurements_t *l1_measurements)
|
||
{
|
||
LOG_D(NR_MAC, "(%d.%d) Received measurements from L1\n", frame, slot);
|
||
bool csi_meas = l1_measurements->meas_type == NFAPI_NR_CSI_MEAS;
|
||
if (!csi_meas && !l1_measurements->is_neighboring_cell) {
|
||
int ssb_index = l1_measurements->ssb_index;
|
||
mac->ssb_measurements[ssb_index].ssb_rsrp_dBm = l1_measurements->rsrp_dBm;
|
||
mac->ssb_measurements[ssb_index].ssb_sinr_dB = l1_measurements->sinr_dB;
|
||
} else if (csi_meas) {
|
||
mac->csirs_measurements.rsrp_dBm = l1_measurements->rsrp_dBm;
|
||
mac->csirs_measurements.i1 = l1_measurements->i1;
|
||
mac->csirs_measurements.i2 = l1_measurements->i2;
|
||
mac->csirs_measurements.cqi = l1_measurements->cqi;
|
||
mac->csirs_measurements.ri = l1_measurements->rank_indicator;
|
||
}
|
||
nr_mac_rrc_meas_ind_ue(mac->ue_id,
|
||
l1_measurements->gNB_index,
|
||
l1_measurements->Nid_cell,
|
||
csi_meas,
|
||
l1_measurements->is_neighboring_cell,
|
||
l1_measurements->rsrp_dBm);
|
||
}
|
||
|
||
static void set_harq_status(NR_UE_MAC_INST_t *mac,
|
||
uint8_t pucch_id,
|
||
uint8_t harq_id,
|
||
int8_t delta_pucch,
|
||
uint16_t data_toul_fb,
|
||
uint8_t dai,
|
||
int n_CCE,
|
||
int N_CCE,
|
||
frame_t frame,
|
||
int slot)
|
||
{
|
||
NR_UE_DL_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[harq_id];
|
||
current_harq->active = true;
|
||
current_harq->ack_received = false;
|
||
current_harq->pucch_resource_indicator = pucch_id;
|
||
current_harq->n_CCE = n_CCE;
|
||
current_harq->N_CCE = N_CCE;
|
||
current_harq->dai_cumul = 0;
|
||
current_harq->delta_pucch = delta_pucch;
|
||
// FIXME k0 != 0 currently not taken into consideration
|
||
int slots_per_frame = mac->frame_structure.numb_slots_frame;
|
||
current_harq->ul_frame = frame;
|
||
current_harq->ul_slot = slot + data_toul_fb;
|
||
if (current_harq->ul_slot >= slots_per_frame) {
|
||
current_harq->ul_frame = (frame + current_harq->ul_slot / slots_per_frame) % MAX_FRAME_NUMBER;
|
||
current_harq->ul_slot %= slots_per_frame;
|
||
}
|
||
// counter DAI in DCI ranges from 0 to 3
|
||
// we might have more than 4 HARQ processes to report per PUCCH
|
||
// we need to keep track of how many DAI we received in a slot (dai_cumul) despite the modulo operation
|
||
int highest_dai = -1;
|
||
int temp_dai = dai;
|
||
const int num_dl_harq = get_nrofHARQ_ProcessesForPDSCH(&mac->sc_info);
|
||
for (int i = 0; i < num_dl_harq; i++) {
|
||
// looking for other active HARQ processes with feedback in the same frame/slot
|
||
if (i == harq_id)
|
||
continue;
|
||
NR_UE_DL_HARQ_STATUS_t *harq = &mac->dl_harq_info[i];
|
||
if (harq->active &&
|
||
harq->ul_frame == current_harq->ul_frame &&
|
||
harq->ul_slot == current_harq->ul_slot) {
|
||
// highest_dai is the largest cumulative dai in the set of HARQ allocations for a given slot
|
||
if (harq->dai_cumul > highest_dai)
|
||
highest_dai = harq->dai_cumul - 1;
|
||
}
|
||
}
|
||
|
||
current_harq->dai_cumul = temp_dai + 1; // DAI = 0 (temp_dai) corresponds to 1st assignment and so on
|
||
// if temp_dai is less or equal than cumulative highest dai for given slot
|
||
// it's an indication dai was reset due to modulo 4 operation
|
||
if (temp_dai <= highest_dai) {
|
||
int mod4_count = (highest_dai + 1) / 4; // to take into account how many times dai wrapped up (modulo 4)
|
||
current_harq->dai_cumul += (mod4_count * 4);
|
||
}
|
||
LOG_D(NR_MAC,
|
||
"Setting harq_status for harq_id %d, dl %d.%d, sched ul %d.%d fb time %d total dai %d\n",
|
||
harq_id,
|
||
frame,
|
||
slot,
|
||
current_harq->ul_frame,
|
||
current_harq->ul_slot,
|
||
data_toul_fb,
|
||
current_harq->dai_cumul);
|
||
}
|
||
|
||
initial_pucch_resource_t get_initial_pucch_resource(const int idx)
|
||
{
|
||
return initial_pucch_resource[idx];
|
||
}
|
||
|
||
int nr_ue_configure_pucch(NR_UE_MAC_INST_t *mac,
|
||
int slot,
|
||
frame_t frame,
|
||
uint16_t rnti,
|
||
PUCCH_sched_t *pucch,
|
||
fapi_nr_ul_config_pucch_pdu *pucch_pdu)
|
||
{
|
||
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
NR_UE_ServingCell_Info_t *sc_info = &mac->sc_info;
|
||
NR_PUCCH_FormatConfig_t *pucchfmt;
|
||
long *pusch_id = NULL;
|
||
long *id0 = NULL;
|
||
const int scs = current_UL_BWP->scs;
|
||
int subframe_number = slot / (mac->frame_structure.numb_slots_frame / 10);
|
||
pucch_pdu->rnti = rnti;
|
||
|
||
LOG_D(NR_MAC, "initial_pucch_id %d, pucch_resource %p\n", pucch->initial_pucch_id, pucch->pucch_resource);
|
||
// configure pucch from Table 9.2.1-1
|
||
// only for ack/nack
|
||
if (pucch->initial_pucch_id > -1 && pucch->pucch_resource == NULL) {
|
||
const int idx = *current_UL_BWP->pucch_ConfigCommon->pucch_ResourceCommon;
|
||
const initial_pucch_resource_t pucch_resourcecommon = get_initial_pucch_resource(idx);
|
||
pucch_pdu->format_type = pucch_resourcecommon.format;
|
||
pucch_pdu->start_symbol_index = pucch_resourcecommon.startingSymbolIndex;
|
||
pucch_pdu->nr_of_symbols = pucch_resourcecommon.nrofSymbols;
|
||
|
||
pucch_pdu->bwp_size = current_UL_BWP->BWPSize;
|
||
pucch_pdu->bwp_start = current_UL_BWP->BWPStart;
|
||
|
||
pucch_pdu->prb_size = 1; // format 0 or 1
|
||
int RB_BWP_offset;
|
||
if (pucch->initial_pucch_id == 15)
|
||
RB_BWP_offset = pucch_pdu->bwp_size >> 2;
|
||
else
|
||
RB_BWP_offset = pucch_resourcecommon.PRB_offset;
|
||
|
||
int N_CS = pucch_resourcecommon.nb_CS_indexes;
|
||
|
||
if (pucch->initial_pucch_id >> 3 == 0) {
|
||
const int tmp = pucch->initial_pucch_id / N_CS;
|
||
pucch_pdu->prb_start = RB_BWP_offset + tmp;
|
||
pucch_pdu->second_hop_prb = pucch_pdu->bwp_size - 1 - RB_BWP_offset - tmp;
|
||
pucch_pdu->initial_cyclic_shift = pucch_resourcecommon.initial_CS_indexes[pucch->initial_pucch_id % N_CS];
|
||
} else {
|
||
const int tmp = (pucch->initial_pucch_id - 8) / N_CS;
|
||
pucch_pdu->prb_start = pucch_pdu->bwp_size - 1 - RB_BWP_offset - tmp;
|
||
pucch_pdu->second_hop_prb = RB_BWP_offset + tmp;
|
||
pucch_pdu->initial_cyclic_shift = pucch_resourcecommon.initial_CS_indexes[(pucch->initial_pucch_id - 8) % N_CS];
|
||
}
|
||
pucch_pdu->freq_hop_flag = 1;
|
||
pucch_pdu->time_domain_occ_idx = 0;
|
||
// Only HARQ transmitted in default PUCCH
|
||
pucch_pdu->mcs = get_pucch0_mcs(pucch->n_harq, 0, pucch->ack_payload, 0);
|
||
pucch_pdu->payload = pucch->ack_payload;
|
||
pucch_pdu->n_bit = 1;
|
||
}
|
||
else if (pucch->pucch_resource != NULL) {
|
||
|
||
NR_PUCCH_Resource_t *pucchres = pucch->pucch_resource;
|
||
|
||
if (mac->harq_ACK_SpatialBundlingPUCCH ||
|
||
mac->pdsch_HARQ_ACK_Codebook != NR_PhysicalCellGroupConfig__pdsch_HARQ_ACK_Codebook_dynamic) {
|
||
LOG_E(NR_MAC, "PUCCH Unsupported cell group configuration\n");
|
||
return -1;
|
||
} else if (sc_info->pdsch_CGB_Transmission) {
|
||
LOG_E(NR_MAC, "PUCCH Unsupported code block group for serving cell config\n");
|
||
return -1;
|
||
}
|
||
|
||
NR_PUSCH_Config_t *pusch_Config = current_UL_BWP ? current_UL_BWP->pusch_Config : NULL;
|
||
if (pusch_Config) {
|
||
pusch_id = pusch_Config->dataScramblingIdentityPUSCH;
|
||
struct NR_SetupRelease_DMRS_UplinkConfig *tmp = pusch_Config->dmrs_UplinkForPUSCH_MappingTypeA;
|
||
if (tmp && tmp->choice.setup->transformPrecodingDisabled != NULL)
|
||
id0 = tmp->choice.setup->transformPrecodingDisabled->scramblingID0;
|
||
else {
|
||
struct NR_SetupRelease_DMRS_UplinkConfig *tmp = pusch_Config->dmrs_UplinkForPUSCH_MappingTypeB;
|
||
if (tmp && tmp->choice.setup->transformPrecodingDisabled != NULL)
|
||
id0 = tmp->choice.setup->transformPrecodingDisabled->scramblingID0;
|
||
}
|
||
}
|
||
|
||
NR_PUCCH_Config_t *pucch_Config = current_UL_BWP->pucch_Config;
|
||
AssertFatal(pucch_Config, "no pucch_Config\n");
|
||
|
||
pucch_pdu->bwp_size = current_UL_BWP->BWPSize;
|
||
pucch_pdu->bwp_start = current_UL_BWP->BWPStart;
|
||
pucch_pdu->prb_start = pucchres->startingPRB;
|
||
pucch_pdu->freq_hop_flag = pucchres->intraSlotFrequencyHopping!= NULL ? 1 : 0;
|
||
pucch_pdu->second_hop_prb = pucchres->secondHopPRB!= NULL ? *pucchres->secondHopPRB : 0;
|
||
pucch_pdu->prb_size = 1; // format 0 or 1
|
||
|
||
int n_uci = pucch->n_sr + pucch->n_harq + pucch->n_csi;
|
||
if (n_uci > (sizeof(uint64_t) * 8)) {
|
||
LOG_E(NR_MAC, "PUCCH number of UCI bits exceeds payload size\n");
|
||
return -1;
|
||
}
|
||
|
||
switch(pucchres->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0 :
|
||
pucch_pdu->format_type = 0;
|
||
pucch_pdu->initial_cyclic_shift = pucchres->format.choice.format0->initialCyclicShift;
|
||
pucch_pdu->nr_of_symbols = pucchres->format.choice.format0->nrofSymbols;
|
||
pucch_pdu->start_symbol_index = pucchres->format.choice.format0->startingSymbolIndex;
|
||
pucch_pdu->mcs = get_pucch0_mcs(pucch->n_harq, pucch->n_sr, pucch->ack_payload, pucch->sr_payload);
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1 :
|
||
pucch_pdu->format_type = 1;
|
||
pucch_pdu->initial_cyclic_shift = pucchres->format.choice.format1->initialCyclicShift;
|
||
pucch_pdu->nr_of_symbols = pucchres->format.choice.format1->nrofSymbols;
|
||
pucch_pdu->start_symbol_index = pucchres->format.choice.format1->startingSymbolIndex;
|
||
pucch_pdu->time_domain_occ_idx = pucchres->format.choice.format1->timeDomainOCC;
|
||
if (pucch->n_harq > 0) {
|
||
// only HARQ bits are transmitted, resource selection depends on SR
|
||
// resource selection handled in function multiplex_pucch_resource
|
||
pucch_pdu->n_bit = pucch->n_harq;
|
||
pucch_pdu->payload = pucch->ack_payload;
|
||
}
|
||
else {
|
||
// For a positive SR transmission using PUCCH format 1,
|
||
// the UE transmits the PUCCH as described in 38.211 by setting b(0) = 0
|
||
pucch_pdu->n_bit = pucch->n_sr;
|
||
pucch_pdu->payload = 0;
|
||
}
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2 :
|
||
pucch_pdu->format_type = 2;
|
||
pucch_pdu->n_bit = n_uci;
|
||
pucch_pdu->nr_of_symbols = pucchres->format.choice.format2->nrofSymbols;
|
||
pucch_pdu->start_symbol_index = pucchres->format.choice.format2->startingSymbolIndex;
|
||
pucch_pdu->data_scrambling_id = pusch_id != NULL ? *pusch_id : mac->physCellId;
|
||
pucch_pdu->dmrs_scrambling_id = id0 != NULL ? *id0 : mac->physCellId;
|
||
pucch_pdu->prb_size = compute_pucch_prb_size(2,
|
||
pucchres->format.choice.format2->nrofPRBs,
|
||
pucch->n_csi,
|
||
pucch->n_harq,
|
||
pucch->n_sr,
|
||
pucch_Config->format2->choice.setup->maxCodeRate,
|
||
2,
|
||
pucchres->format.choice.format2->nrofSymbols,
|
||
8);
|
||
pucch_pdu->payload = (pucch->csi_part1_payload << (pucch->n_harq + pucch->n_sr)) | (pucch->sr_payload << pucch->n_harq) | pucch->ack_payload;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format3 :
|
||
pucch_pdu->format_type = 3;
|
||
pucch_pdu->n_bit = n_uci;
|
||
pucch_pdu->nr_of_symbols = pucchres->format.choice.format3->nrofSymbols;
|
||
pucch_pdu->start_symbol_index = pucchres->format.choice.format3->startingSymbolIndex;
|
||
pucch_pdu->data_scrambling_id = pusch_id != NULL ? *pusch_id : mac->physCellId;
|
||
if (pucch_Config->format3 == NULL) {
|
||
pucch_pdu->pi_2bpsk = 0;
|
||
pucch_pdu->add_dmrs_flag = 0;
|
||
}
|
||
else {
|
||
pucchfmt = pucch_Config->format3->choice.setup;
|
||
pucch_pdu->pi_2bpsk = pucchfmt->pi2BPSK!= NULL ? 1 : 0;
|
||
pucch_pdu->add_dmrs_flag = pucchfmt->additionalDMRS!= NULL ? 1 : 0;
|
||
}
|
||
int f3_dmrs_symbols;
|
||
if (pucchres->format.choice.format3->nrofSymbols==4)
|
||
f3_dmrs_symbols = 1<<pucch_pdu->freq_hop_flag;
|
||
else {
|
||
if(pucchres->format.choice.format3->nrofSymbols<10)
|
||
f3_dmrs_symbols = 2;
|
||
else
|
||
f3_dmrs_symbols = 2<<pucch_pdu->add_dmrs_flag;
|
||
}
|
||
pucch_pdu->prb_size = compute_pucch_prb_size(3,
|
||
pucchres->format.choice.format3->nrofPRBs,
|
||
pucch->n_csi,
|
||
pucch->n_harq,
|
||
pucch->n_sr,
|
||
pucch_Config->format3->choice.setup->maxCodeRate,
|
||
2 - pucch_pdu->pi_2bpsk,
|
||
pucchres->format.choice.format3->nrofSymbols - f3_dmrs_symbols,
|
||
12);
|
||
pucch_pdu->payload = (pucch->csi_part1_payload << (pucch->n_harq + pucch->n_sr)) | (pucch->sr_payload << pucch->n_harq) | pucch->ack_payload;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format4 :
|
||
pucch_pdu->format_type = 4;
|
||
pucch_pdu->nr_of_symbols = pucchres->format.choice.format4->nrofSymbols;
|
||
pucch_pdu->start_symbol_index = pucchres->format.choice.format4->startingSymbolIndex;
|
||
pucch_pdu->pre_dft_occ_len = pucchres->format.choice.format4->occ_Length;
|
||
pucch_pdu->pre_dft_occ_idx = pucchres->format.choice.format4->occ_Index;
|
||
pucch_pdu->data_scrambling_id = pusch_id!= NULL ? *pusch_id : mac->physCellId;
|
||
if (pucch_Config->format3 == NULL) {
|
||
pucch_pdu->pi_2bpsk = 0;
|
||
pucch_pdu->add_dmrs_flag = 0;
|
||
}
|
||
else {
|
||
pucchfmt = pucch_Config->format3->choice.setup;
|
||
pucch_pdu->pi_2bpsk = pucchfmt->pi2BPSK!= NULL ? 1 : 0;
|
||
pucch_pdu->add_dmrs_flag = pucchfmt->additionalDMRS!= NULL ? 1 : 0;
|
||
}
|
||
pucch_pdu->payload = (pucch->csi_part1_payload << (pucch->n_harq + pucch->n_sr)) | (pucch->sr_payload << pucch->n_harq) | pucch->ack_payload;
|
||
break;
|
||
default :
|
||
LOG_E(NR_MAC, "Undefined PUCCH format \n");
|
||
return -1;
|
||
}
|
||
|
||
int sum_delta_pucch = get_sum_delta_pucch(mac, slot, frame);
|
||
|
||
pucch_pdu->pucch_tx_power = get_pucch_tx_power_ue(mac,
|
||
scs,
|
||
pucch_Config,
|
||
sum_delta_pucch,
|
||
pucch_pdu->format_type,
|
||
pucch_pdu->prb_size,
|
||
pucch_pdu->freq_hop_flag,
|
||
pucch_pdu->add_dmrs_flag,
|
||
pucch_pdu->nr_of_symbols,
|
||
subframe_number,
|
||
n_uci,
|
||
pucch_pdu->prb_start);
|
||
} else {
|
||
LOG_E(NR_MAC, "problem with pucch configuration\n");
|
||
return -1;
|
||
}
|
||
|
||
NR_PUCCH_ConfigCommon_t *pucch_ConfigCommon = current_UL_BWP->pucch_ConfigCommon;
|
||
|
||
if (pucch_ConfigCommon->hoppingId != NULL)
|
||
pucch_pdu->hopping_id = *pucch_ConfigCommon->hoppingId;
|
||
else
|
||
pucch_pdu->hopping_id = mac->physCellId;
|
||
|
||
switch (pucch_ConfigCommon->pucch_GroupHopping){
|
||
case 0 :
|
||
// if neither, both disabled
|
||
pucch_pdu->group_hop_flag = 0;
|
||
pucch_pdu->sequence_hop_flag = 0;
|
||
break;
|
||
case 1 :
|
||
// if enable, group enabled
|
||
pucch_pdu->group_hop_flag = 1;
|
||
pucch_pdu->sequence_hop_flag = 0;
|
||
break;
|
||
case 2 :
|
||
// if disable, sequence disabled
|
||
pucch_pdu->group_hop_flag = 0;
|
||
pucch_pdu->sequence_hop_flag = 1;
|
||
break;
|
||
default:
|
||
LOG_E(NR_MAC, "Group hopping flag undefined (0,1,2) \n");
|
||
return -1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static int find_pucch_resource_set(NR_PUCCH_Config_t *pucch_Config, int size)
|
||
{
|
||
// Procedure described in 38.213 Section 9.2.1
|
||
|
||
AssertFatal(pucch_Config && pucch_Config->resourceSetToAddModList, "pucch-Config NULL, this function shouldn't have been called\n");
|
||
AssertFatal(size <= 1706, "O_UCI cannot be larger that 1706 bits\n");
|
||
|
||
// a first set of PUCCH resources with pucch-ResourceSetId = 0 if O UCI ≤ 2 including 1 or 2 HARQ-ACK information bits
|
||
if (size <= 2)
|
||
return 0;
|
||
|
||
const int n_set = pucch_Config->resourceSetToAddModList->list.count;
|
||
|
||
int N2 = 1706;
|
||
int N3 = 1706;
|
||
for (int i = 0; i < n_set; i++) {
|
||
NR_PUCCH_ResourceSet_t *pucchresset = pucch_Config->resourceSetToAddModList->list.array[i];
|
||
NR_PUCCH_ResourceId_t id = pucchresset->pucch_ResourceSetId;
|
||
if (id == 1)
|
||
N2 = pucchresset->maxPayloadSize ? *pucchresset->maxPayloadSize : 1706;
|
||
if (id == 2)
|
||
N3 = pucchresset->maxPayloadSize ? *pucchresset->maxPayloadSize : 1706;
|
||
}
|
||
|
||
// a second set of PUCCH resources with pucch-ResourceSetId = 1, if provided by higher layers, if 2 < O UCI ≤ N 2
|
||
if (size <= N2)
|
||
return 1;
|
||
// a third set of PUCCH resources with pucch-ResourceSetId = 2, if provided by higher layers, if N 2 < O UCI ≤ N 3
|
||
if (size <= N3)
|
||
return 2;
|
||
// a fourth set of PUCCH resources with pucch-ResourceSetId = 3, if provided by higher layers, if N 3 < O UCI ≤ 1706
|
||
return 3;
|
||
}
|
||
|
||
NR_PUCCH_Resource_t *find_pucch_resource_from_list(struct NR_PUCCH_Config__resourceToAddModList *resourceToAddModList,
|
||
long resource_id)
|
||
{
|
||
NR_PUCCH_Resource_t *pucch_resource = NULL;
|
||
int n_list = resourceToAddModList->list.count;
|
||
for (int i = 0; i < n_list; i++) {
|
||
if (resourceToAddModList->list.array[i]->pucch_ResourceId == resource_id)
|
||
pucch_resource = resourceToAddModList->list.array[i];
|
||
}
|
||
return pucch_resource;
|
||
}
|
||
|
||
static bool check_mux_acknack_csi(NR_PUCCH_Resource_t *csi_res, NR_PUCCH_Config_t *pucch_Config)
|
||
{
|
||
bool ret;
|
||
switch (csi_res->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
ret = pucch_Config->format2->choice.setup->simultaneousHARQ_ACK_CSI ? true : false;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
ret = pucch_Config->format3->choice.setup->simultaneousHARQ_ACK_CSI ? true : false;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
ret = pucch_Config->format4->choice.setup->simultaneousHARQ_ACK_CSI ? true : false;
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format for CSI\n");
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
void get_pucch_start_symbol_length(NR_PUCCH_Resource_t *pucch_resource, int *start, int *length)
|
||
{
|
||
switch (pucch_resource->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0:
|
||
*length = pucch_resource->format.choice.format0->nrofSymbols;
|
||
*start = pucch_resource->format.choice.format0->startingSymbolIndex;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1:
|
||
*length = pucch_resource->format.choice.format1->nrofSymbols;
|
||
*start = pucch_resource->format.choice.format1->startingSymbolIndex;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
*length = pucch_resource->format.choice.format2->nrofSymbols;
|
||
*start = pucch_resource->format.choice.format2->startingSymbolIndex;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
*length = pucch_resource->format.choice.format3->nrofSymbols;
|
||
*start = pucch_resource->format.choice.format3->startingSymbolIndex;
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
*length = pucch_resource->format.choice.format4->nrofSymbols;
|
||
*start = pucch_resource->format.choice.format4->startingSymbolIndex;
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format\n");
|
||
}
|
||
}
|
||
|
||
// Ref. 38.213 section 9.2.5 order(Q)
|
||
void order_resources(PUCCH_sched_t *pucch, int num_res)
|
||
{
|
||
int k = 0;
|
||
while (k < num_res - 1) {
|
||
int l = 0;
|
||
while (l < num_res - 1 - k) {
|
||
NR_PUCCH_Resource_t *pucch_resource = pucch[l].pucch_resource;
|
||
int curr_start, curr_length;
|
||
get_pucch_start_symbol_length(pucch_resource, &curr_start, &curr_length);
|
||
pucch_resource = pucch[l + 1].pucch_resource;
|
||
int next_start, next_length;
|
||
get_pucch_start_symbol_length(pucch_resource, &next_start, &next_length);
|
||
if (curr_start > next_start || (curr_start == next_start && curr_length < next_length)) {
|
||
// swap resources
|
||
PUCCH_sched_t temp_res = pucch[l];
|
||
pucch[l] = pucch[l + 1];
|
||
pucch[l + 1] = temp_res;
|
||
}
|
||
l++;
|
||
}
|
||
k++;
|
||
}
|
||
}
|
||
|
||
bool check_overlapping_resources(PUCCH_sched_t *pucch, int j, int o)
|
||
{
|
||
// assuming overlapping means if two resources overlaps in time,
|
||
// ie share a symbol in the slot regardless of PRB
|
||
NR_PUCCH_Resource_t *pucch_resource = pucch[j - o].pucch_resource;
|
||
int curr_start, curr_length;
|
||
get_pucch_start_symbol_length(pucch_resource, &curr_start, &curr_length);
|
||
pucch_resource = pucch[j + 1].pucch_resource;
|
||
int next_start, next_length;
|
||
get_pucch_start_symbol_length(pucch_resource, &next_start, &next_length);
|
||
|
||
if (curr_start == next_start)
|
||
return true;
|
||
if (curr_start + curr_length - 1 < next_start)
|
||
return false;
|
||
else
|
||
return true;
|
||
}
|
||
|
||
// 38.213 section 9.2.5
|
||
void merge_resources(PUCCH_sched_t *res, int num_res, NR_PUCCH_Config_t *pucch_Config)
|
||
{
|
||
PUCCH_sched_t empty = {0};
|
||
for (int i = 0; i < num_res - 1; i++) {
|
||
NR_PUCCH_Resource_t *curr_resource = res[i].pucch_resource;
|
||
NR_PUCCH_Resource_t *next_resource = res[i + 1].pucch_resource;
|
||
switch (curr_resource->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0:
|
||
switch (next_resource->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0 && res[i + 1].n_sr == 0 && res[i + 1].n_harq > 0) {
|
||
// we multiplex SR and HARQ in the HARQ resource
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
} else if (res[i].n_sr == 0 && res[i].n_harq > 0 && res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
// we multiplex SR and HARQ in the HARQ resource and move it to the i+1 spot
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else
|
||
AssertFatal(
|
||
false,
|
||
"We cannot multiplex more than 1 SR into a PUCCH F0 and we don't expect more than 1 PUCCH with HARQ per slot\n");
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0 && res[i + 1].n_sr == 0 && res[i + 1].n_harq > 0)
|
||
// we transmit only HARQ in F1
|
||
res[i] = empty;
|
||
else if (res[i].n_sr == 0 && res[i].n_harq > 0 && res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
// we multiplex SR and HARQ in the HARQ F0 resource and move it to the i+1 spot
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else
|
||
AssertFatal(
|
||
false,
|
||
"We cannot multiplex more than 1 SR into a PUCCH F0 and we don't expect more than 1 PUCCH with HARQ per slot\n");
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0) {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support multiple SR in a slot\n");
|
||
// we multiplex SR in the F2 or above resource
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
} else if (res[i].n_harq > 0) {
|
||
AssertFatal(res[i + 1].n_harq == 0, "The standard doesn't allow for more the 1 PUCCH in a slot with HARQ\n");
|
||
if (check_mux_acknack_csi(next_resource, pucch_Config)) {
|
||
// we multiplex what in F0 to CSI resource
|
||
if (res[i + 1].n_sr == 0) {
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
} else
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i + 1].n_harq = res[i].n_harq;
|
||
res[i + 1].ack_payload = res[i].ack_payload;
|
||
res[i] = empty;
|
||
} else {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
if (res[i + 1].n_sr == 0) {
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
// we take SR from F2 or above into F0 and drop CSI
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format %d\n", next_resource->format.present);
|
||
}
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1:
|
||
switch (next_resource->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0 && res[i + 1].n_sr == 0 && res[i + 1].n_harq > 0) {
|
||
// we multiplex SR and HARQ in the HARQ F0 resource and move it to the i+1 spot
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
} else if (res[i].n_sr == 0 && res[i].n_harq > 0 && res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
// we transmit only HARQ in F1
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else
|
||
AssertFatal(
|
||
false,
|
||
"We cannot multiplex more than 1 SR into a PUCCH F0 and we don't expect more than 1 PUCCH with HARQ per slot\n");
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0 && res[i + 1].n_sr == 0 && res[i + 1].n_harq > 0) {
|
||
if (res[i].sr_payload == 0) {
|
||
// negative SR -> transmit HARQ only in HARQ resource
|
||
res[i] = empty;
|
||
} else {
|
||
// positive SR -> transmit HARQ only in SR resource
|
||
res[i].n_harq = res[i + 1].n_harq;
|
||
res[i].ack_payload = res[i + 1].ack_payload;
|
||
res[i].n_sr = 0;
|
||
res[i].sr_payload = 0;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
}
|
||
} else if (res[i].n_sr == 0 && res[i].n_harq > 0 && res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
if (res[i].sr_payload == 0) {
|
||
// negative SR -> transmit HARQ only in HARQ resource
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
// positive SR -> transmit HARQ only in SR resource
|
||
res[i + 1].n_harq = res[i].n_harq;
|
||
res[i + 1].ack_payload = res[i].ack_payload;
|
||
res[i + 1].n_sr = 0;
|
||
res[i + 1].sr_payload = 0;
|
||
res[i] = empty;
|
||
}
|
||
} else
|
||
AssertFatal(
|
||
false,
|
||
"We cannot multiplex more than 1 SR into a PUCCH F0 and we don't expect more than 1 PUCCH with HARQ per slot\n");
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
if (res[i].n_sr > 0 && res[i].n_harq == 0) {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support multiple SR in a slot\n");
|
||
// we multiplex SR in the F2 or above resource
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
} else if (res[i].n_harq > 0) {
|
||
AssertFatal(res[i + 1].n_harq == 0, "The standard doesn't allow for more the 1 PUCCH in a slot with HARQ\n");
|
||
if (check_mux_acknack_csi(next_resource, pucch_Config)) {
|
||
// we multiplex what in F0 to CSI resource
|
||
if (res[i + 1].n_sr == 0) {
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
} else
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i + 1].n_harq = res[i].n_harq;
|
||
res[i + 1].ack_payload = res[i].ack_payload;
|
||
res[i] = empty;
|
||
} else {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
if (res[i + 1].n_sr == 0) {
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
if (res[i + 1].n_sr > 0)
|
||
LOG_E(MAC, "Not sure what to do here because you can't easily mux HARQ and SR in F1\n");
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format %d\n", next_resource->format.present);
|
||
}
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
switch (next_resource->format.present) {
|
||
case NR_PUCCH_Resource__format_PR_format0:
|
||
if (res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support multiple SR in a slot\n");
|
||
// we multiplex SR in the F2 or above resource
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else if (res[i + 1].n_harq > 0) {
|
||
AssertFatal(res[i].n_harq == 0, "The standard doesn't allow for more the 1 PUCCH in a slot with HARQ\n");
|
||
if (check_mux_acknack_csi(curr_resource, pucch_Config)) {
|
||
// we multiplex what in F0 to CSI resource
|
||
if (res[i].n_sr == 0) {
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
} else
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i].n_harq = res[i + 1].n_harq;
|
||
res[i].ack_payload = res[i + 1].ack_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
if (res[i].n_sr == 0)
|
||
res[i] = empty;
|
||
else {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
// we take SR from F2 or above into F0 and drop CSI
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format1:
|
||
if (res[i + 1].n_sr > 0 && res[i + 1].n_harq == 0) {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support multiple SR in a slot\n");
|
||
// we multiplex SR in the F2 or above resource
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else if (res[i + 1].n_harq > 0) {
|
||
AssertFatal(res[i].n_harq == 0, "The standard doesn't allow for more the 1 PUCCH in a slot with HARQ\n");
|
||
if (check_mux_acknack_csi(curr_resource, pucch_Config)) {
|
||
// we multiplex what in F0 to CSI resource
|
||
if (res[i].n_sr == 0) {
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
} else
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i].n_harq = res[i + 1].n_harq;
|
||
res[i].ack_payload = res[i + 1].ack_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
if (res[i].n_sr == 0)
|
||
res[i] = empty;
|
||
else {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
if (res[i].n_sr > 0)
|
||
LOG_E(MAC, "Not sure what to do here because you can't easily mux HARQ and SR in F1\n");
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
case NR_PUCCH_Resource__format_PR_format2:
|
||
case NR_PUCCH_Resource__format_PR_format4:
|
||
case NR_PUCCH_Resource__format_PR_format3:
|
||
if (res[i + 1].n_csi > 0) {
|
||
AssertFatal(res[i].n_csi == 0, "Multiplexing multiple CSI report in a single PUCCH not supported yet\n");
|
||
AssertFatal(res[i].n_harq > 0 && res[i + 1].n_harq == 0,
|
||
"There is CSI in next F2 or above resource, since there is no CSI in current one, we expect HARQ in "
|
||
"there and not in next\n");
|
||
// the UE expects to be provided a same configuration for simultaneousHARQ-ACK-CSI each of PUCCH formats 2, 3, and 4
|
||
// we can check next or current
|
||
if (check_mux_acknack_csi(next_resource, pucch_Config)) {
|
||
// We need to use HARQ resource
|
||
if (res[i + 1].n_sr > 0) {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
}
|
||
res[i].n_csi = res[i + 1].n_csi;
|
||
res[i].csi_part1_payload = res[i + 1].csi_part1_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
if (res[i].n_sr > 0) {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else if (res[i + 1].n_sr == 0) {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
} else {
|
||
// we move SR (assuming it was previously multiplexed with CSI) into HARQ resource and discard CSI
|
||
res[i].n_sr = res[i + 1].n_sr;
|
||
res[i].sr_payload = res[i + 1].sr_payload;
|
||
res[i + 1] = res[i];
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
} else if (res[i].n_csi > 0) {
|
||
AssertFatal(res[i + 1].n_csi == 0, "Multiplexing multiple CSI report in a single PUCCH not supported yet\n");
|
||
AssertFatal(res[i + 1].n_harq > 0 && res[i].n_harq == 0,
|
||
"There is CSI in next F2 or above resource, since there is no CSI in current one, we expect HARQ in "
|
||
"there and not in next\n");
|
||
// the UE expects to be provided a same configuration for simultaneousHARQ-ACK-CSI each of PUCCH formats 2, 3, and 4
|
||
// we can check next or current
|
||
if (check_mux_acknack_csi(next_resource, pucch_Config)) {
|
||
// We need to use HARQ resource
|
||
if (res[i].n_sr > 0) {
|
||
AssertFatal(res[i + 1].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
}
|
||
res[i + 1].n_csi = res[i].n_csi;
|
||
res[i + 1].csi_part1_payload = res[i].csi_part1_payload;
|
||
res[i] = empty;
|
||
} else {
|
||
if (res[i + 1].n_sr > 0) {
|
||
AssertFatal(res[i].n_sr == 0, "We don't support more than 1 SR in a slot\n");
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
res[i] = empty;
|
||
} else if (res[i].n_sr == 0) {
|
||
// if we can't multiplex HARQ and CSI we discard CSI
|
||
res[i] = empty;
|
||
} else {
|
||
// we move SR (assuming it was previously multiplexed with CSI) into HARQ resource and discard CSI
|
||
res[i + 1].n_sr = res[i].n_sr;
|
||
res[i + 1].sr_payload = res[i].sr_payload;
|
||
res[i] = empty;
|
||
}
|
||
}
|
||
} else
|
||
AssertFatal(false, "We expect at least one of the 2 PUCCH F2 or above resources with CSI\n");
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format %d\n", next_resource->format.present);
|
||
}
|
||
break;
|
||
default:
|
||
AssertFatal(false, "Invalid PUCCH format %d\n", curr_resource->format.present);
|
||
}
|
||
}
|
||
}
|
||
|
||
void multiplex_pucch_resource(NR_UE_MAC_INST_t *mac, PUCCH_sched_t *pucch, int num_res)
|
||
{
|
||
NR_PUCCH_Config_t *pucch_Config = mac->current_UL_BWP->pucch_Config;
|
||
order_resources(pucch, num_res);
|
||
// following pseudocode in Ref. 38.213 section 9.2.5 to multiplex resources
|
||
int j = 0;
|
||
int o = 0;
|
||
while (j <= num_res - 1) {
|
||
if ((j < num_res - 1) && check_overlapping_resources(pucch, j, o)) {
|
||
o++;
|
||
j++;
|
||
} else {
|
||
if (o > 0) {
|
||
merge_resources(&pucch[j - o], o + 1, pucch_Config);
|
||
// move the resources to occupy the places left empty
|
||
int num_empty = o;
|
||
for (int i = j; i < num_res; i++)
|
||
pucch[i - num_empty] = pucch[i];
|
||
for (int e = num_res - num_empty; e < num_res; e++)
|
||
memset(&pucch[e], 0, sizeof(pucch[e]));
|
||
j = 0;
|
||
o = 0;
|
||
num_res = num_res - num_empty;
|
||
order_resources(pucch, num_res);
|
||
} else
|
||
j++;
|
||
}
|
||
}
|
||
}
|
||
|
||
void configure_initial_pucch(PUCCH_sched_t *pucch, int res_ind)
|
||
{
|
||
/* see TS 38.213 9.2.1 PUCCH Resource Sets */
|
||
int delta_PRI = res_ind;
|
||
int n_CCE_0 = pucch->n_CCE;
|
||
int N_CCE_0 = pucch->N_CCE;
|
||
if (N_CCE_0 == 0)
|
||
AssertFatal(1 == 0, "PUCCH No compatible pucch format found\n");
|
||
int r_PUCCH = ((2 * n_CCE_0) / N_CCE_0) + (2 * delta_PRI);
|
||
pucch->initial_pucch_id = r_PUCCH;
|
||
pucch->pucch_resource = NULL;
|
||
}
|
||
|
||
/*******************************************************************
|
||
*
|
||
* NAME : get_downlink_ack
|
||
*
|
||
* PARAMETERS : ue context
|
||
* processing slots of reception/transmission
|
||
* gNB_id identifier
|
||
*
|
||
* RETURN : o_ACK acknowledgment data
|
||
* o_ACK_number_bits number of bits for acknowledgment
|
||
*
|
||
* DESCRIPTION : return acknowledgment value
|
||
* TS 38.213 9.1.3 Type-2 HARQ-ACK codebook determination
|
||
*
|
||
* --+--------+-------+--------+-------+--- ---+-------+--
|
||
* | PDCCH1 | | PDCCH2 |PDCCH3 | | PUCCH |
|
||
* --+--------+-------+--------+-------+--- ---+-------+--
|
||
* DAI_DL 1 2 3 ACK for
|
||
* V V V PDCCH1, PDDCH2 and PCCH3
|
||
* | | | ^
|
||
* +-----------------+-------+---------------+
|
||
*
|
||
* PDCCH1, PDCCH2 and PDCCH3 are PDCCH monitoring occasions
|
||
* M is the total of monitoring occasions
|
||
*
|
||
*********************************************************************/
|
||
|
||
bool get_downlink_ack(NR_UE_MAC_INST_t *mac, frame_t frame, int slot, PUCCH_sched_t *pucch)
|
||
{
|
||
uint32_t ack_data[NR_DL_MAX_NB_CW][NR_MAX_HARQ_PROCESSES] = {{0},{0}};
|
||
uint32_t dai[NR_DL_MAX_NB_CW][NR_MAX_HARQ_PROCESSES] = {{0},{0}}; /* for serving cell */
|
||
uint32_t dai_total[NR_DL_MAX_NB_CW][NR_MAX_HARQ_PROCESSES] = {{0},{0}}; /* for multiple cells */
|
||
int number_harq_feedback = 0;
|
||
uint32_t dai_max = 0;
|
||
|
||
NR_UE_DL_BWP_t *current_DL_BWP = mac->current_DL_BWP;
|
||
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
|
||
bool two_transport_blocks = false;
|
||
int number_of_code_word = 1;
|
||
if (current_DL_BWP
|
||
&& current_DL_BWP->pdsch_Config
|
||
&& current_DL_BWP->pdsch_Config->maxNrofCodeWordsScheduledByDCI
|
||
&& current_DL_BWP->pdsch_Config->maxNrofCodeWordsScheduledByDCI[0] == 2) {
|
||
two_transport_blocks = true;
|
||
number_of_code_word = 2;
|
||
}
|
||
|
||
const int num_dl_harq = get_nrofHARQ_ProcessesForPDSCH(&mac->sc_info);
|
||
int res_ind = -1;
|
||
|
||
/* look for dl acknowledgment which should be done on current uplink slot */
|
||
for (int code_word = 0; code_word < number_of_code_word; code_word++) {
|
||
|
||
for (int dl_harq_pid = 0; dl_harq_pid < num_dl_harq; dl_harq_pid++) {
|
||
|
||
NR_UE_DL_HARQ_STATUS_t *current_harq = &mac->dl_harq_info[dl_harq_pid];
|
||
|
||
if (current_harq->active) {
|
||
LOG_D(PHY, "HARQ pid %d is active for %d.%d\n",
|
||
dl_harq_pid, current_harq->ul_frame, current_harq->ul_slot);
|
||
/* check if current tx slot should transmit downlink acknowlegment */
|
||
if (current_harq->ul_frame == frame && current_harq->ul_slot == slot) {
|
||
if (res_ind != -1 && res_ind != current_harq->pucch_resource_indicator)
|
||
LOG_E(NR_MAC,
|
||
"Value of pucch_resource_indicator %d not matching with what set before %d (Possibly due to a false DCI) \n",
|
||
current_harq->pucch_resource_indicator,
|
||
res_ind);
|
||
else {
|
||
if (!current_harq->ack_received)
|
||
LOG_E(NR_MAC, "DLSCH ACK/NACK reporting initiated for harq pid %d before DLSCH decoding completed\n", dl_harq_pid);
|
||
|
||
if (get_FeedbackDisabled(mac->sc_info.downlinkHARQ_FeedbackDisabled_r17, dl_harq_pid)) {
|
||
LOG_W(NR_MAC, "skipping DLSCH ACK/NACK reporting for harq pid %d\n", dl_harq_pid);
|
||
current_harq->active = false;
|
||
current_harq->ack_received = false;
|
||
continue;
|
||
}
|
||
|
||
if (current_harq->dai_cumul == 0) {
|
||
LOG_E(NR_MAC,"PUCCH Downlink DAI is invalid\n");
|
||
return false;
|
||
} else if (current_harq->dai_cumul > dai_max) {
|
||
dai_max = current_harq->dai_cumul;
|
||
}
|
||
|
||
number_harq_feedback++;
|
||
int dai_index = current_harq->dai_cumul - 1;
|
||
if (current_harq->ack_received) {
|
||
ack_data[code_word][dai_index] = current_harq->ack;
|
||
current_harq->active = false;
|
||
current_harq->ack_received = false;
|
||
} else {
|
||
ack_data[code_word][dai_index] = 0;
|
||
}
|
||
dai[code_word][dai_index] = (dai_index % 4) + 1; // value between 1 and 4
|
||
int temp_ind = current_harq->pucch_resource_indicator;
|
||
AssertFatal(res_ind == -1 || res_ind == temp_ind,
|
||
"Current resource index %d does not match with previous resource index %d\n",
|
||
temp_ind,
|
||
res_ind);
|
||
res_ind = temp_ind;
|
||
pucch->n_CCE = current_harq->n_CCE;
|
||
pucch->N_CCE = current_harq->N_CCE;
|
||
LOG_D(NR_MAC,"%4d.%2d Sent %d ack on harq pid %d\n", frame, slot, current_harq->ack, dl_harq_pid);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/* no any ack to transmit */
|
||
if (number_harq_feedback == 0) {
|
||
return false;
|
||
}
|
||
else if (number_harq_feedback > (sizeof(uint32_t)*8)) {
|
||
LOG_E(MAC,"PUCCH number of ack bits exceeds payload size\n");
|
||
return false;
|
||
}
|
||
|
||
for (int code_word = 0; code_word < number_of_code_word; code_word++) {
|
||
for (uint32_t i = 0; i < dai_max ; i++ ) {
|
||
if (dai[code_word][i] == 0) {
|
||
dai[code_word][i] = (i % 4) + 1; // it covers case for which PDCCH DCI has not been successfully decoded and so it has been missed
|
||
ack_data[code_word][i] = 0; // nack data transport block which has been missed
|
||
number_harq_feedback++;
|
||
}
|
||
if (two_transport_blocks == true) {
|
||
dai_total[code_word][i] = dai[code_word][i]; /* for a single cell, dai_total is the same as dai of first cell */
|
||
}
|
||
}
|
||
}
|
||
|
||
int M = dai_max;
|
||
int j = 0;
|
||
uint32_t V_temp = 0;
|
||
uint32_t V_temp2 = 0;
|
||
int O_ACK = 0;
|
||
uint8_t o_ACK = 0;
|
||
int O_bit_number_cw0 = 0;
|
||
int O_bit_number_cw1 = 0;
|
||
|
||
for (int m = 0; m < M ; m++) {
|
||
if (dai[0][m] <= V_temp) {
|
||
j = j + 1;
|
||
}
|
||
|
||
V_temp = dai[0][m]; /* value of the counter DAI for format 1_0 and format 1_1 on serving cell c */
|
||
|
||
if (dai_total[0][m] == 0) {
|
||
V_temp2 = dai[0][m];
|
||
} else {
|
||
V_temp2 = dai[1][m]; /* second code word has been received */
|
||
O_bit_number_cw1 = (8 * j) + 2*(V_temp - 1) + 1;
|
||
o_ACK = o_ACK | (ack_data[1][m] << O_bit_number_cw1);
|
||
}
|
||
|
||
if (two_transport_blocks == true) {
|
||
O_bit_number_cw0 = (8 * j) + 2*(V_temp - 1);
|
||
}
|
||
else {
|
||
O_bit_number_cw0 = (4 * j) + (V_temp - 1);
|
||
}
|
||
|
||
o_ACK = o_ACK | (ack_data[0][m] << O_bit_number_cw0);
|
||
LOG_D(MAC,"m %d bit number %d o_ACK %d\n",m,O_bit_number_cw0,o_ACK);
|
||
}
|
||
|
||
if (V_temp2 < V_temp) {
|
||
j = j + 1;
|
||
}
|
||
|
||
if (two_transport_blocks == true) {
|
||
O_ACK = 2 * ( 4 * j + V_temp2); /* for two transport blocks */
|
||
}
|
||
else {
|
||
O_ACK = 4 * j + V_temp2; /* only one transport block */
|
||
}
|
||
|
||
if (number_harq_feedback != O_ACK) {
|
||
LOG_E(MAC,"PUCCH Error for number of bits for acknowledgment\n");
|
||
return false;
|
||
}
|
||
|
||
NR_PUCCH_Config_t *pucch_Config = current_UL_BWP ? current_UL_BWP->pucch_Config : NULL;
|
||
if (!(pucch_Config && pucch_Config->resourceSetToAddModList && pucch_Config->resourceSetToAddModList->list.array[0]))
|
||
configure_initial_pucch(pucch, res_ind);
|
||
else {
|
||
int resource_set_id = find_pucch_resource_set(pucch_Config, O_ACK);
|
||
int n_list = pucch_Config->resourceSetToAddModList->list.count;
|
||
AssertFatal(resource_set_id < n_list, "Invalid PUCCH resource set id %d\n", resource_set_id);
|
||
n_list = pucch_Config->resourceSetToAddModList->list.array[resource_set_id]->resourceList.list.count;
|
||
AssertFatal(res_ind < n_list, "Invalid PUCCH resource id %d\n", res_ind);
|
||
long *acknack_resource_id =
|
||
pucch_Config->resourceSetToAddModList->list.array[resource_set_id]->resourceList.list.array[res_ind];
|
||
AssertFatal(acknack_resource_id != NULL, "Couldn't find PUCCH Resource ID in ResourceSet\n");
|
||
NR_PUCCH_Resource_t *acknack_resource = find_pucch_resource_from_list(pucch_Config->resourceToAddModList, *acknack_resource_id);
|
||
AssertFatal(acknack_resource != NULL, "Couldn't find PUCCH Resource ID for ACK/NACK in PUCCH resource list\n");
|
||
pucch->pucch_resource = acknack_resource;
|
||
LOG_D(MAC, "frame %d slot %d pucch acknack payload %d\n", frame, slot, o_ACK);
|
||
}
|
||
pucch->ack_payload = reverse_bits(o_ACK, number_harq_feedback);
|
||
pucch->n_harq = number_harq_feedback;
|
||
|
||
return (number_harq_feedback > 0);
|
||
}
|
||
|
||
bool trigger_periodic_scheduling_request(NR_UE_MAC_INST_t *mac, PUCCH_sched_t *pucch, frame_t frame, int slot)
|
||
{
|
||
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
NR_PUCCH_Config_t *pucch_Config = current_UL_BWP ? current_UL_BWP->pucch_Config : NULL;
|
||
|
||
if(!pucch_Config ||
|
||
!pucch_Config->schedulingRequestResourceToAddModList ||
|
||
pucch_Config->schedulingRequestResourceToAddModList->list.count == 0)
|
||
return false; // SR not configured
|
||
|
||
int sr_count = 0;
|
||
for (int id = 0; id < pucch_Config->schedulingRequestResourceToAddModList->list.count; id++) {
|
||
NR_SchedulingRequestResourceConfig_t *sr_Config = pucch_Config->schedulingRequestResourceToAddModList->list.array[id];
|
||
int SR_period; int SR_offset;
|
||
|
||
find_period_offset_SR(sr_Config, &SR_period, &SR_offset);
|
||
const int n_slots_frame = mac->frame_structure.numb_slots_frame;
|
||
int sfn_sf = frame * n_slots_frame + slot;
|
||
|
||
if ((sfn_sf - SR_offset) % SR_period == 0) {
|
||
LOG_D(MAC, "Scheduling Request active in frame %d slot %d \n", frame, slot);
|
||
if (!sr_Config->resource) {
|
||
LOG_E(MAC, "No resource associated with SR. SR not scheduled\n");
|
||
break;
|
||
}
|
||
NR_PUCCH_Resource_t *sr_pucch =
|
||
find_pucch_resource_from_list(pucch_Config->resourceToAddModList, *sr_Config->resource);
|
||
AssertFatal(sr_pucch != NULL, "Couldn't find PUCCH Resource ID for SR in PUCCH resource list\n");
|
||
pucch->pucch_resource = sr_pucch;
|
||
pucch->n_sr = 1;
|
||
/* sr_payload = 1 means that this is a positive SR, sr_payload = 0 means that it is a negative SR */
|
||
int ret = nr_ue_get_SR(mac, frame, slot, sr_Config->schedulingRequestID);
|
||
if (ret < 0) {
|
||
memset(pucch, 0, sizeof(*pucch));
|
||
return false;
|
||
}
|
||
pucch->sr_payload = ret;
|
||
sr_count++;
|
||
AssertFatal(sr_count < 2, "Cannot handle more than 1 SR per slot yet\n");
|
||
}
|
||
}
|
||
return sr_count > 0;
|
||
}
|
||
|
||
static int8_t nr_ue_get_SR(NR_UE_MAC_INST_t *mac, frame_t frame, slot_t slot, NR_SchedulingRequestId_t sr_id)
|
||
{
|
||
// no UL-SCH resources available for this tti && UE has a valid PUCCH resources for SR configuration for this tti
|
||
NR_UE_SCHEDULING_INFO *si = &mac->scheduling_info;
|
||
nr_sr_info_t *sr_info = &si->sr_info[sr_id];
|
||
if (!sr_info->active_SR_ID) {
|
||
LOG_E(NR_MAC, "SR triggered for an inactive SR with ID %ld\n", sr_id);
|
||
return 0;
|
||
}
|
||
|
||
LOG_D(NR_MAC,
|
||
"[UE %d] Frame %d slot %d SR %s for ID %ld, timer %d\n",
|
||
mac->ue_id,
|
||
frame,
|
||
slot,
|
||
sr_info->pending ? "pending" : "not pending",
|
||
sr_id, // todo
|
||
nr_timer_is_active(&sr_info->prohibitTimer));
|
||
|
||
// TODO check if the PUCCH resource for the SR transmission occasion does not overlap with a UL-SCH resource
|
||
if (!sr_info->pending || nr_timer_is_active(&sr_info->prohibitTimer))
|
||
return 0;
|
||
|
||
if (sr_info->counter < sr_info->maxTransmissions) {
|
||
sr_info->counter++;
|
||
// start the sr-prohibittimer
|
||
nr_timer_start(&sr_info->prohibitTimer);
|
||
LOG_D(NR_MAC, "[UE %d] Frame %d slot %d instruct the physical layer to signal the SR (counter/sr_TransMax %d/%d)\n",
|
||
mac->ue_id,
|
||
frame,
|
||
slot,
|
||
sr_info->counter,
|
||
sr_info->maxTransmissions);
|
||
return 1;
|
||
}
|
||
|
||
LOG_W(NR_MAC,
|
||
"[UE %d] SR not served! SR counter %d reached sr_MaxTransmissions %d\n",
|
||
mac->ue_id,
|
||
sr_info->counter,
|
||
sr_info->maxTransmissions);
|
||
|
||
// initiate a Random Access procedure (see clause 5.1) on the SpCell and cancel all pending SRs.
|
||
sr_info->pending = false;
|
||
sr_info->counter = 0;
|
||
nr_timer_stop(&sr_info->prohibitTimer);
|
||
schedule_RA_after_SR_failure(mac);
|
||
return -1;
|
||
}
|
||
|
||
// section 5.2.5 of 38.214
|
||
int compute_csi_priority(NR_UE_MAC_INST_t *mac, NR_CSI_ReportConfig_t *csirep)
|
||
{
|
||
int y = 4 - csirep->reportConfigType.present;
|
||
int k = csirep->reportQuantity.present == NR_CSI_ReportConfig__reportQuantity_PR_cri_RSRP
|
||
|| csirep->reportQuantity.present == NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP
|
||
? 0
|
||
: 1;
|
||
int Ncells = 32; // maxNrofServingCells
|
||
int c = mac->servCellIndex;
|
||
int s = csirep->reportConfigId;
|
||
int Ms = 48; // maxNrofCSI-ReportConfigurations
|
||
|
||
return 2 * Ncells * Ms * y + Ncells * Ms * k + Ms * c + s;
|
||
}
|
||
|
||
int nr_get_csi_measurements(NR_UE_MAC_INST_t *mac, frame_t frame, int slot, PUCCH_sched_t *pucch)
|
||
{
|
||
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
NR_PUCCH_Config_t *pucch_Config = current_UL_BWP ? current_UL_BWP->pucch_Config : NULL;
|
||
int num_csi = 0;
|
||
|
||
if (mac->sc_info.csi_MeasConfig) {
|
||
NR_CSI_MeasConfig_t *csi_measconfig = mac->sc_info.csi_MeasConfig;
|
||
|
||
int csi_priority = INT_MAX;
|
||
for (int csi_report_id = 0; csi_report_id < csi_measconfig->csi_ReportConfigToAddModList->list.count; csi_report_id++) {
|
||
NR_CSI_ReportConfig_t *csirep = csi_measconfig->csi_ReportConfigToAddModList->list.array[csi_report_id];
|
||
|
||
if(csirep->reportConfigType.present == NR_CSI_ReportConfig__reportConfigType_PR_periodic) {
|
||
int period, offset;
|
||
csi_period_offset(csirep, NULL, &period, &offset);
|
||
const int n_slots_frame = mac->frame_structure.numb_slots_frame;
|
||
if (((n_slots_frame*frame + slot - offset)%period) == 0 && pucch_Config) {
|
||
int csi_res_id = -1;
|
||
for (int i = 0; i < csirep->reportConfigType.choice.periodic->pucch_CSI_ResourceList.list.count; i++) {
|
||
const NR_PUCCH_CSI_Resource_t *pucchcsires =
|
||
csirep->reportConfigType.choice.periodic->pucch_CSI_ResourceList.list.array[i];
|
||
if (pucchcsires->uplinkBandwidthPartId == current_UL_BWP->bwp_id) {
|
||
csi_res_id = pucchcsires->pucch_Resource;
|
||
break;
|
||
}
|
||
}
|
||
if (csi_res_id < 0) {
|
||
// This CSI Report ID is not associated with current active BWP
|
||
continue;
|
||
}
|
||
NR_PUCCH_Resource_t *csi_pucch = find_pucch_resource_from_list(pucch_Config->resourceToAddModList, csi_res_id);
|
||
AssertFatal(csi_pucch != NULL, "Couldn't find PUCCH Resource ID for SR in PUCCH resource list\n");
|
||
LOG_D(NR_MAC, "Preparing CSI report in frame %d slot %d CSI report ID %d\n", frame, slot, csi_report_id);
|
||
int temp_priority = compute_csi_priority(mac, csirep);
|
||
if (num_csi > 0) {
|
||
// need to verify if we can multiplex multiple CSI report
|
||
if (pucch_Config->multi_CSI_PUCCH_ResourceList) {
|
||
AssertFatal(false, "Multiplexing multiple CSI report in a single PUCCH not supported yet\n");
|
||
} else if (temp_priority < csi_priority) {
|
||
// we discard previous report
|
||
csi_priority = temp_priority;
|
||
num_csi = 1;
|
||
csi_payload_t csi = nr_get_csi_payload(mac, csi_report_id, WIDEBAND_ON_PUCCH, csi_measconfig);
|
||
pucch->n_csi = csi.p1_bits;
|
||
pucch->csi_part1_payload = csi.part1_payload;
|
||
pucch->pucch_resource = csi_pucch;
|
||
} else
|
||
continue;
|
||
} else {
|
||
num_csi = 1;
|
||
csi_priority = temp_priority;
|
||
csi_payload_t csi = nr_get_csi_payload(mac, csi_report_id, WIDEBAND_ON_PUCCH, csi_measconfig);
|
||
pucch->n_csi = csi.p1_bits;
|
||
pucch->csi_part1_payload = csi.part1_payload;
|
||
pucch->pucch_resource = csi_pucch;
|
||
}
|
||
}
|
||
}
|
||
else
|
||
AssertFatal(csirep->reportConfigType.present == NR_CSI_ReportConfig__reportConfigType_PR_aperiodic,
|
||
"Not supported CSI report type\n");
|
||
}
|
||
}
|
||
return num_csi;
|
||
}
|
||
|
||
// Referred - Table 10.1.16.1-1 in 38.133 V16.7.0.
|
||
static uint8_t get_sinr_index(float sinr)
|
||
{
|
||
int index = sinr * 2 + 47;
|
||
if (sinr >= 40)
|
||
index = 127;
|
||
if (sinr < -23)
|
||
index = 0;
|
||
|
||
return index;
|
||
}
|
||
|
||
// Reffered Table 10.1.16.1-2 in 38.133 V16.7.0. Differential value is reported.
|
||
static uint8_t get_sinr_diff_index(float best_sinr, float current_sinr)
|
||
{
|
||
int diff = best_sinr - current_sinr;
|
||
if (diff >= 15)
|
||
return 15;
|
||
else if (diff <= 0)
|
||
return 0;
|
||
else
|
||
return diff;
|
||
}
|
||
|
||
// Comparison function for sorting SSB SINR measurements in descending order
|
||
static int compare_ssb_sinr(const void *a, const void *b)
|
||
{
|
||
const NR_RSRP_meas_t *ma = (const NR_RSRP_meas_t *)a;
|
||
const NR_RSRP_meas_t *mb = (const NR_RSRP_meas_t *)b;
|
||
return mb->ssb_sinr_dB - ma->ssb_sinr_dB;
|
||
}
|
||
|
||
static csi_payload_t get_ssb_sinr_payload(NR_UE_MAC_INST_t *mac,
|
||
struct NR_CSI_ReportConfig *csi_reportconfig,
|
||
NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
|
||
NR_CSI_MeasConfig_t *csi_MeasConfig)
|
||
{
|
||
int nb_ssb = 0; // nb of ssb in the resource
|
||
int nb_meas = 0; // nb of ssb to report measurements on
|
||
int bits = 0;
|
||
uint64_t temp_payload = 0;
|
||
|
||
for (int csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
|
||
struct NR_CSI_ResourceConfig *csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx];
|
||
if (csi_resourceconfig->csi_ResourceConfigId == csi_ResourceConfigId) {
|
||
if (csi_reportconfig->groupBasedBeamReporting.present == NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled) {
|
||
if (csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS != NULL)
|
||
nb_meas = *(csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS) + 1;
|
||
else
|
||
nb_meas = 1;
|
||
} else
|
||
nb_meas = 2;
|
||
|
||
struct NR_CSI_SSB_ResourceSet__csi_SSB_ResourceList *SSB_resource = NULL;
|
||
for (int csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) {
|
||
if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceSetId
|
||
== *(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])) {
|
||
SSB_resource = &csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList;
|
||
/// only one SSB resource set from spec 38.331 IE CSI-ResourceConfig
|
||
nb_ssb = SSB_resource->list.count;
|
||
break;
|
||
}
|
||
}
|
||
|
||
AssertFatal(nb_ssb > 0, "No SSB found in the resource set\n");
|
||
AssertFatal(nb_meas <= 4,"Can't report more than 4 RSRPs\n");
|
||
int ssbri_bits = ceil(log2(nb_ssb));
|
||
|
||
// map SSB index to SSB resource table index, copy measurements, sort in descending order
|
||
NR_RSRP_meas_t sorted_sinr_measurements[nb_ssb];
|
||
int sorted_idx = 0;
|
||
for (int measured_ssb_idx = 0; measured_ssb_idx < MAX_NB_SSB; measured_ssb_idx++) {
|
||
// searching for the SSB index in the SSB resource table
|
||
for (int ssb_resource = 0; ssb_resource < nb_ssb; ssb_resource++) {
|
||
if (*SSB_resource->list.array[ssb_resource] == measured_ssb_idx) {
|
||
sorted_sinr_measurements[sorted_idx].ssb_index = ssb_resource;
|
||
sorted_sinr_measurements[sorted_idx].ssb_rsrp_dBm = mac->ssb_measurements[measured_ssb_idx].ssb_rsrp_dBm;
|
||
sorted_sinr_measurements[sorted_idx].ssb_sinr_dB = mac->ssb_measurements[measured_ssb_idx].ssb_sinr_dB;
|
||
sorted_idx++;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
qsort(sorted_sinr_measurements, nb_ssb, sizeof(NR_RSRP_meas_t), compare_ssb_sinr);
|
||
|
||
// TS38.212 v16.5.0: Table 6.3.1.1.2-8A
|
||
for (int i = 0; i < nb_meas; i++) {
|
||
if (ssbri_bits > 0) {
|
||
uint8_t ssbi = sorted_sinr_measurements[i].ssb_index;
|
||
temp_payload |= (reverse_bits(ssbi, ssbri_bits) << bits);
|
||
bits += ssbri_bits;
|
||
}
|
||
}
|
||
|
||
uint8_t sinr_idx = get_sinr_index(sorted_sinr_measurements[0].ssb_sinr_dB);
|
||
temp_payload |= (reverse_bits(sinr_idx, 7) << bits);
|
||
bits += 7; // 7 bits for highest SINR
|
||
|
||
for (int i = 1; i < nb_meas; i++) {
|
||
sinr_idx = get_sinr_diff_index(sorted_sinr_measurements[0].ssb_sinr_dB, sorted_sinr_measurements[i].ssb_sinr_dB);
|
||
temp_payload |= (reverse_bits(sinr_idx, 4) << bits);
|
||
bits += 4; // 4 bits for differential SINR
|
||
}
|
||
break; // resource found
|
||
}
|
||
}
|
||
int max_bits = sizeof(((csi_payload_t *)0)->part1_payload) * 8;
|
||
AssertFatal(bits <= max_bits, "Not supporting CSI report with more than %d bits (payload: %d bits)\n", max_bits, bits);
|
||
csi_payload_t csi = {.part1_payload = temp_payload, .part2_payload = 0, .p1_bits = bits, csi.p2_bits = 0};
|
||
return csi;
|
||
}
|
||
|
||
csi_payload_t nr_get_csi_payload(NR_UE_MAC_INST_t *mac,
|
||
int csi_report_id,
|
||
CSI_mapping_t mapping_type,
|
||
NR_CSI_MeasConfig_t *csi_MeasConfig)
|
||
{
|
||
AssertFatal(csi_MeasConfig->csi_ReportConfigToAddModList->list.count > 0,"No CSI Report configuration available\n");
|
||
csi_payload_t csi = {0};
|
||
struct NR_CSI_ReportConfig *csi_reportconfig = csi_MeasConfig->csi_ReportConfigToAddModList->list.array[csi_report_id];
|
||
NR_CSI_ResourceConfigId_t csi_ResourceConfigId = csi_reportconfig->resourcesForChannelMeasurement;
|
||
if (csi_reportconfig->ext2 && csi_reportconfig->ext2->reportQuantity_r16) {
|
||
switch (csi_reportconfig->ext2->reportQuantity_r16->present) {
|
||
case NR_CSI_ReportConfig__ext2__reportQuantity_r16_PR_ssb_Index_SINR_r16:
|
||
csi = get_ssb_sinr_payload(mac, csi_reportconfig, csi_ResourceConfigId, csi_MeasConfig);
|
||
break;
|
||
case NR_CSI_ReportConfig__ext2__reportQuantity_r16_PR_cri_SINR_r16:
|
||
LOG_E(NR_MAC, "CSI Reporting of CSI-RS based SINR not yet available\n");
|
||
break;
|
||
default:
|
||
AssertFatal(1 == 0, "Invalid CSI report quantity r16 type %d\n", csi_reportconfig->ext2->reportQuantity_r16->present);
|
||
}
|
||
} else {
|
||
switch (csi_reportconfig->reportQuantity.present) {
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_none:
|
||
break;
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_ssb_Index_RSRP:
|
||
csi = get_ssb_rsrp_payload(mac, csi_reportconfig, csi_ResourceConfigId, csi_MeasConfig);
|
||
break;
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_PMI_CQI:
|
||
csi = get_csirs_RI_PMI_CQI_payload(mac, csi_reportconfig, csi_ResourceConfigId, csi_MeasConfig, mapping_type);
|
||
break;
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RSRP:
|
||
csi = get_csirs_RSRP_payload(mac, csi_reportconfig, csi_ResourceConfigId, csi_MeasConfig);
|
||
break;
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_i1:
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_i1_CQI:
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_CQI:
|
||
case NR_CSI_ReportConfig__reportQuantity_PR_cri_RI_LI_PMI_CQI:
|
||
LOG_E(NR_MAC, "Measurement report %d based on CSI-RS is not available\n", csi_reportconfig->reportQuantity.present);
|
||
break;
|
||
default:
|
||
AssertFatal(1 == 0, "Invalid CSI report quantity type %d\n", csi_reportconfig->reportQuantity.present);
|
||
}
|
||
}
|
||
return csi;
|
||
}
|
||
|
||
// Comparison function for sorting SSB RSRP measurements in descending order
|
||
static int compare_ssb_rsrp(const void *a, const void *b)
|
||
{
|
||
const NR_RSRP_meas_t *ma = (const NR_RSRP_meas_t *)a;
|
||
const NR_RSRP_meas_t *mb = (const NR_RSRP_meas_t *)b;
|
||
return mb->ssb_rsrp_dBm - ma->ssb_rsrp_dBm;
|
||
}
|
||
|
||
|
||
static csi_payload_t get_ssb_rsrp_payload(NR_UE_MAC_INST_t *mac,
|
||
struct NR_CSI_ReportConfig *csi_reportconfig,
|
||
NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
|
||
NR_CSI_MeasConfig_t *csi_MeasConfig)
|
||
{
|
||
int nb_ssb = 0; // nb of ssb in the resource
|
||
int nb_meas = 0; // nb of ssb to report measurements on
|
||
int bits = 0;
|
||
uint64_t temp_payload = 0;
|
||
|
||
for (int csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
|
||
struct NR_CSI_ResourceConfig *csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx];
|
||
if (csi_resourceconfig->csi_ResourceConfigId == csi_ResourceConfigId) {
|
||
|
||
if (csi_reportconfig->groupBasedBeamReporting.present == NR_CSI_ReportConfig__groupBasedBeamReporting_PR_disabled) {
|
||
if (csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS != NULL)
|
||
nb_meas = *(csi_reportconfig->groupBasedBeamReporting.choice.disabled->nrofReportedRS) + 1;
|
||
else
|
||
nb_meas = 1;
|
||
} else
|
||
nb_meas = 2;
|
||
|
||
struct NR_CSI_SSB_ResourceSet__csi_SSB_ResourceList *SSB_resource = NULL;
|
||
for (int csi_ssb_idx = 0; csi_ssb_idx < csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.count; csi_ssb_idx++) {
|
||
if (csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceSetId ==
|
||
*(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->csi_SSB_ResourceSetList->list.array[0])){
|
||
SSB_resource = &csi_MeasConfig->csi_SSB_ResourceSetToAddModList->list.array[csi_ssb_idx]->csi_SSB_ResourceList;
|
||
///only one SSB resource set from spec 38.331 IE CSI-ResourceConfig
|
||
nb_ssb = SSB_resource->list.count;
|
||
break;
|
||
}
|
||
}
|
||
|
||
AssertFatal(nb_ssb > 0,"No SSB found in the resource set\n");
|
||
AssertFatal(nb_meas <= 4,"Can't report more than 4 RSRPs\n");
|
||
int ssbri_bits = ceil(log2(nb_ssb));
|
||
|
||
// map SSB index to SSB resource table index, copy measurements, sort in descending order
|
||
NR_RSRP_meas_t sorted_rsrp_measurements[nb_ssb];
|
||
int sorted_idx = 0;
|
||
for (int measured_ssb_idx = 0; measured_ssb_idx < MAX_NB_SSB; measured_ssb_idx++) {
|
||
// searching for the SSB index in the SSB resource table
|
||
for (int ssb_resource = 0; ssb_resource < nb_ssb; ssb_resource++) {
|
||
if (*SSB_resource->list.array[ssb_resource] == measured_ssb_idx) {
|
||
sorted_rsrp_measurements[sorted_idx].ssb_index = ssb_resource;
|
||
sorted_rsrp_measurements[sorted_idx].ssb_rsrp_dBm = mac->ssb_measurements[measured_ssb_idx].ssb_rsrp_dBm;
|
||
sorted_rsrp_measurements[sorted_idx].ssb_sinr_dB = mac->ssb_measurements[measured_ssb_idx].ssb_sinr_dB;
|
||
sorted_idx++;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
qsort(sorted_rsrp_measurements, nb_ssb, sizeof(NR_RSRP_meas_t), compare_ssb_rsrp);
|
||
|
||
for (int i = 0; i < nb_meas; i++) {
|
||
if (ssbri_bits > 0) {
|
||
uint32_t ssbi = sorted_rsrp_measurements[i].ssb_index;
|
||
temp_payload |= (reverse_bits(ssbi, ssbri_bits) << bits);
|
||
bits += ssbri_bits;
|
||
}
|
||
}
|
||
|
||
uint8_t rsrp_idx = get_rsrp_index(sorted_rsrp_measurements[0].ssb_rsrp_dBm);
|
||
temp_payload |= (reverse_bits(rsrp_idx, 7) << bits);
|
||
bits += 7; // 7 bits for highest RSRP
|
||
|
||
// from the second SSB, differential report
|
||
for (int i = 1; i < nb_meas; i++) {
|
||
rsrp_idx = get_rsrp_diff_index(sorted_rsrp_measurements[0].ssb_rsrp_dBm,sorted_rsrp_measurements[i].ssb_rsrp_dBm);
|
||
temp_payload |= (reverse_bits(rsrp_idx, 4) << bits);
|
||
bits += 4; // 4 bits for subsequent RSRP
|
||
}
|
||
break; // resource found
|
||
}
|
||
}
|
||
int max_bits = sizeof(((csi_payload_t *)0)->part1_payload) * 8;
|
||
AssertFatal(bits <= max_bits, "Not supporting CSI report with more than %d bits (payload: %d bits)\n", max_bits, bits);
|
||
|
||
csi_payload_t csi = {.part1_payload = temp_payload, .part2_payload = 0, .p1_bits = bits, .p2_bits = 0};
|
||
return csi;
|
||
}
|
||
|
||
static csi_payload_t get_csirs_RI_PMI_CQI_payload(NR_UE_MAC_INST_t *mac,
|
||
struct NR_CSI_ReportConfig *csi_reportconfig,
|
||
NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
|
||
NR_CSI_MeasConfig_t *csi_MeasConfig,
|
||
CSI_mapping_t mapping_type)
|
||
{
|
||
int p1_bits = 0;
|
||
int p2_bits = 0;
|
||
uint64_t temp_payload_1 = 0;
|
||
uint64_t temp_payload_2 = 0;
|
||
AssertFatal(mapping_type != SUBBAND_ON_PUCCH, "CSI mapping for subband PMI and CQI not implemented\n");
|
||
|
||
for (int csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
|
||
|
||
struct NR_CSI_ResourceConfig *csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx];
|
||
if (csi_resourceconfig->csi_ResourceConfigId == csi_ResourceConfigId) {
|
||
|
||
for (int csi_idx = 0; csi_idx < csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.count; csi_idx++) {
|
||
if (csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_idx]->nzp_CSI_ResourceSetId ==
|
||
*(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.array[0])) {
|
||
|
||
nr_csi_report_t *csi_report = NULL;
|
||
for (int i = 0; i < MAX_CSI_REPORTCONFIG; i++) {
|
||
if (mac->csi_report_template[i].reportConfigId == csi_reportconfig->reportConfigId) {
|
||
csi_report = &mac->csi_report_template[i];
|
||
break;
|
||
}
|
||
}
|
||
AssertFatal(csi_report, "Couldn't find CSI report with ID %ld\n", csi_reportconfig->reportConfigId);
|
||
int cri_bitlen = csi_report->csi_meas_bitlen.cri_bitlen;
|
||
int ri_bitlen = csi_report->csi_meas_bitlen.ri_bitlen;
|
||
int pmi_x1_bitlen = csi_report->csi_meas_bitlen.pmi_x1_bitlen[mac->csirs_measurements.ri];
|
||
int pmi_x2_bitlen = csi_report->csi_meas_bitlen.pmi_x2_bitlen[mac->csirs_measurements.ri];
|
||
int cqi_bitlen = csi_report->csi_meas_bitlen.cqi_bitlen[mac->csirs_measurements.ri];
|
||
int padding_bitlen = 0;
|
||
// TODO: Improvements will be needed to cri_bitlen>0 and pmi_x1_bitlen>0
|
||
if (mapping_type == ON_PUSCH) {
|
||
p1_bits = cri_bitlen + ri_bitlen + cqi_bitlen;
|
||
p2_bits = pmi_x1_bitlen + pmi_x2_bitlen;
|
||
temp_payload_1 = (0/*mac->csi_measurements.cri*/ << (cqi_bitlen + ri_bitlen)) |
|
||
(mac->csirs_measurements.ri << cqi_bitlen) |
|
||
(mac->csirs_measurements.cqi);
|
||
temp_payload_2 = (mac->csirs_measurements.i1 << pmi_x2_bitlen) |
|
||
mac->csirs_measurements.i2;
|
||
}
|
||
else {
|
||
p1_bits = nr_get_csi_bitlen(csi_report);
|
||
padding_bitlen = p1_bits - (cri_bitlen + ri_bitlen + pmi_x1_bitlen + pmi_x2_bitlen + cqi_bitlen);
|
||
temp_payload_1 = (0/*mac->csi_measurements.cri*/ << (cqi_bitlen + pmi_x2_bitlen + pmi_x1_bitlen + padding_bitlen + ri_bitlen)) |
|
||
(mac->csirs_measurements.ri << (cqi_bitlen + pmi_x2_bitlen + pmi_x1_bitlen + padding_bitlen)) |
|
||
(mac->csirs_measurements.i1 << (cqi_bitlen + pmi_x2_bitlen)) |
|
||
(mac->csirs_measurements.i2 << (cqi_bitlen)) |
|
||
(mac->csirs_measurements.cqi);
|
||
}
|
||
|
||
temp_payload_1 = reverse_bits(temp_payload_1, p1_bits);
|
||
temp_payload_2 = reverse_bits(temp_payload_2, p2_bits);
|
||
LOG_D(NR_MAC, "cri_bitlen = %d\n", cri_bitlen);
|
||
LOG_D(NR_MAC, "ri_bitlen = %d\n", ri_bitlen);
|
||
LOG_D(NR_MAC, "pmi_x1_bitlen = %d\n", pmi_x1_bitlen);
|
||
LOG_D(NR_MAC, "pmi_x2_bitlen = %d\n", pmi_x2_bitlen);
|
||
LOG_D(NR_MAC, "cqi_bitlen = %d\n", cqi_bitlen);
|
||
LOG_D(NR_MAC, "csi_part1_payload = 0x%lx\n", temp_payload_1);
|
||
LOG_D(NR_MAC, "csi_part2_payload = 0x%lx\n", temp_payload_2);
|
||
LOG_D(NR_MAC, "part1_bits = %d\n", p1_bits);
|
||
LOG_D(NR_MAC, "part2_bits = %d\n", p2_bits);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
AssertFatal(p1_bits <= 32 && p2_bits <= 32, "Not supporting CSI report with more than 32 bits\n");
|
||
csi_payload_t csi = {.part1_payload = temp_payload_1, .part2_payload = temp_payload_2, .p1_bits = p1_bits, csi.p2_bits = p2_bits};
|
||
return csi;
|
||
}
|
||
|
||
static csi_payload_t get_csirs_RSRP_payload(NR_UE_MAC_INST_t *mac,
|
||
struct NR_CSI_ReportConfig *csi_reportconfig,
|
||
NR_CSI_ResourceConfigId_t csi_ResourceConfigId,
|
||
const NR_CSI_MeasConfig_t *csi_MeasConfig)
|
||
{
|
||
int n_bits = 0;
|
||
uint64_t temp_payload = 0;
|
||
|
||
for (int csi_resourceidx = 0; csi_resourceidx < csi_MeasConfig->csi_ResourceConfigToAddModList->list.count; csi_resourceidx++) {
|
||
|
||
struct NR_CSI_ResourceConfig *csi_resourceconfig = csi_MeasConfig->csi_ResourceConfigToAddModList->list.array[csi_resourceidx];
|
||
if (csi_resourceconfig->csi_ResourceConfigId == csi_ResourceConfigId) {
|
||
|
||
for (int csi_idx = 0; csi_idx < csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.count; csi_idx++) {
|
||
if (csi_MeasConfig->nzp_CSI_RS_ResourceSetToAddModList->list.array[csi_idx]->nzp_CSI_ResourceSetId ==
|
||
*(csi_resourceconfig->csi_RS_ResourceSetList.choice.nzp_CSI_RS_SSB->nzp_CSI_RS_ResourceSetList->list.array[0])) {
|
||
|
||
nr_csi_report_t *csi_report = NULL;
|
||
for (int i = 0; i < MAX_CSI_REPORTCONFIG; i++) {
|
||
if (mac->csi_report_template[i].reportConfigId == csi_reportconfig->reportConfigId) {
|
||
csi_report = &mac->csi_report_template[i];
|
||
break;
|
||
}
|
||
}
|
||
AssertFatal(csi_report, "Couldn't find CSI report with ID %ld\n", csi_reportconfig->reportConfigId);
|
||
n_bits = nr_get_csi_bitlen(csi_report);
|
||
int cri_ssbri_bitlen = csi_report->CSI_report_bitlen.cri_ssbri_bitlen;
|
||
int rsrp_bitlen = csi_report->CSI_report_bitlen.rsrp_bitlen;
|
||
int diff_rsrp_bitlen = csi_report->CSI_report_bitlen.diff_rsrp_bitlen;
|
||
|
||
if (cri_ssbri_bitlen > 0) {
|
||
LOG_E(NR_MAC, "Implementation for cri_ssbri_bitlen>0 is not supported yet!\n");;
|
||
}
|
||
|
||
// TODO: Improvements will be needed to cri_ssbri_bitlen>0
|
||
temp_payload = get_rsrp_index(mac->csirs_measurements.rsrp_dBm);
|
||
temp_payload = reverse_bits(temp_payload, n_bits);
|
||
|
||
LOG_D(NR_MAC, "cri_ssbri_bitlen = %d\n", cri_ssbri_bitlen);
|
||
LOG_D(NR_MAC, "rsrp_bitlen = %d\n", rsrp_bitlen);
|
||
LOG_D(NR_MAC, "diff_rsrp_bitlen = %d\n", diff_rsrp_bitlen);
|
||
LOG_D(NR_MAC, "n_bits = %d\n", n_bits);
|
||
LOG_D(NR_MAC, "csi_part1_payload = 0x%lx\n", temp_payload);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
AssertFatal(n_bits <= 32, "Not supporting CSI report with more than 32 bits\n");
|
||
csi_payload_t csi = {.part1_payload = temp_payload, .p1_bits = n_bits, csi.p2_bits = 0};
|
||
return csi;
|
||
}
|
||
|
||
// returns index from differential RSRP
|
||
// according to Table 10.1.6.1-2 in 38.133
|
||
static uint8_t get_rsrp_diff_index(int best_rsrp, int current_rsrp)
|
||
{
|
||
int diff = best_rsrp-current_rsrp;
|
||
if (diff>30)
|
||
return 15;
|
||
else
|
||
return (diff>>1);
|
||
}
|
||
|
||
void nr_ue_send_sdu(NR_UE_MAC_INST_t *mac, nr_downlink_indication_t *dl_info, int pdu_id)
|
||
{
|
||
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_IN);
|
||
|
||
LOG_D(NR_MAC,
|
||
"In [%d.%d] Handling DLSCH PDU type %d\n",
|
||
dl_info->frame,
|
||
dl_info->slot,
|
||
dl_info->rx_ind->rx_indication_body[pdu_id].pdu_type);
|
||
|
||
// Processing MAC PDU
|
||
// it parses MAC CEs subheaders, MAC CEs, SDU subheaderds and SDUs
|
||
switch (dl_info->rx_ind->rx_indication_body[pdu_id].pdu_type) {
|
||
case FAPI_NR_RX_PDU_TYPE_DLSCH :
|
||
// start or restart dataInactivityTimer if any MAC entity receives a MAC SDU for DTCH logical channel,
|
||
// DCCH logical channel, or CCCH logical channel
|
||
if (mac->data_inactivity_timer)
|
||
nr_timer_start(mac->data_inactivity_timer);
|
||
// DL data arrival during RRC_CONNECTED when UL synchronisation status is "non-synchronised"
|
||
if (!nr_timer_is_active(&mac->time_alignment_timer) && mac->state == UE_CONNECTED && !get_softmodem_params()->phy_test) {
|
||
trigger_MAC_UE_RA(mac, NULL);
|
||
break;
|
||
}
|
||
nr_ue_process_mac_pdu(mac, dl_info, pdu_id);
|
||
break;
|
||
case FAPI_NR_RX_PDU_TYPE_RAR :
|
||
nr_ue_process_rar(mac, dl_info, pdu_id);
|
||
break;
|
||
default :
|
||
AssertFatal(false, "Invalid DLSCH PDU type\n");
|
||
}
|
||
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SEND_SDU, VCD_FUNCTION_OUT);
|
||
}
|
||
|
||
// #define EXTRACT_DCI_ITEM(val,size) val= readBits(dci_pdu, &pos, size);
|
||
#define EXTRACT_DCI_ITEM(val, size) \
|
||
val = readBits(dci_pdu, &pos, size); \
|
||
LOG_D(NR_MAC_DCI, " " #val ": %d\n", val);
|
||
|
||
// Fixme: Intel Endianess only procedure
|
||
static inline int readBits(const uint8_t *dci, int *start, int length)
|
||
{
|
||
uint32_t mask = (1U << length) - 1;
|
||
uint64_t *tmp = (uint64_t *)dci;
|
||
*start -= length;
|
||
return *tmp >> *start & mask;
|
||
}
|
||
|
||
static void extract_10_ra_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos, const int N_RB)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 1_0 RA rnti\n");
|
||
|
||
// Freq domain assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, (int)ceil(log2((N_RB * (N_RB + 1)) >> 1)));
|
||
// Time domain assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// VRB to PRB mapping
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->vrb_to_prb_mapping.val, 1);
|
||
// MCS
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// TB scaling
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tb_scaling, 2);
|
||
}
|
||
|
||
static uint8_t extract_10_si_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos, const int N_RB)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 1_0 SI rnti\n");
|
||
|
||
// Freq domain assignment 0-16 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, (int)ceil(log2((N_RB * (N_RB + 1)) >> 1)));
|
||
// Time domain assignment 4 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// VRB to PRB mapping 1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->vrb_to_prb_mapping.val, 1);
|
||
// MCS 5bit //bit over 32
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// Redundancy version 2 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// System information indicator 1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->system_info_indicator, 1);
|
||
return dci_pdu_rel15->system_info_indicator;
|
||
}
|
||
|
||
static bool extract_10_c_rnti(NR_UE_MAC_INST_t *mac,
|
||
dci_pdu_rel15_t *dci_pdu_rel15,
|
||
const uint8_t *dci_pdu,
|
||
int pos,
|
||
const int N_RB)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 1_0 C rnti\n");
|
||
|
||
// Freq domain assignment (275rb >> fsize = 16)
|
||
int fsize = (int)ceil(log2((N_RB * (N_RB + 1)) >> 1));
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, fsize);
|
||
bool pdcch_order = true;
|
||
for (int i = 0; i < fsize; i++) {
|
||
if (!((dci_pdu_rel15->frequency_domain_assignment.val >> i) & 1)) {
|
||
pdcch_order = false;
|
||
break;
|
||
}
|
||
}
|
||
if (pdcch_order) { // Frequency domain resource assignment field are all 1 38.212 section 7.3.1.2.1
|
||
// ra_preamble_index 6 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ra_preamble_index, 6);
|
||
// UL/SUL indicator 1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ul_sul_indicator.val, 1);
|
||
// SS/PBCH index 6 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ss_pbch_index, 6);
|
||
// prach_mask_index 4 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->prach_mask_index, 4);
|
||
trigger_MAC_UE_RA(mac, dci_pdu_rel15);
|
||
return true;
|
||
} // end if
|
||
|
||
// Time domain assignment 4bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// VRB to PRB mapping 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->vrb_to_prb_mapping.val, 1);
|
||
// MCS 5bit //bit over 32, so dci_pdu ++
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// HARQ process number 4/5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, dci_pdu_rel15->harq_pid.nbits);
|
||
// Downlink assignment index 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dai[0].val, 2);
|
||
// TPC command for scheduled PUCCH 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
// PUCCH resource indicator 3bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pucch_resource_indicator, 3);
|
||
// PDSCH-to-HARQ_feedback timing indicator 3bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val, 3);
|
||
return false;
|
||
}
|
||
|
||
static void extract_00_c_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 0_0 C rnti\n");
|
||
|
||
// Frequency domain assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, dci_pdu_rel15->frequency_domain_assignment.nbits);
|
||
// Time domain assignment 4bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// Frequency hopping flag E1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_hopping_flag.val, 1);
|
||
// MCS 5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// HARQ process number 4bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, 4);
|
||
// TPC command for scheduled PUSCH E2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
// UL/SUL indicator E1 bit
|
||
/* commented for now (RK): need to get this from BWP descriptor
|
||
if (cfg->pucch_config.pucch_GroupHopping.value)
|
||
dci_pdu->= ((uint64_t)readBits(dci_pdu,>>(dci_size-pos)ul_sul_indicator&1)<<(dci_size-pos++);
|
||
*/
|
||
}
|
||
|
||
static void extract_10_tc_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos, const int N_RB)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 1_0 TC rnti\n");
|
||
|
||
// Freq domain assignment 0-16 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, (int)ceil(log2((N_RB * (N_RB + 1)) >> 1)));
|
||
// Time domain assignment - 4 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// VRB to PRB mapping - 1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->vrb_to_prb_mapping.val, 1);
|
||
// MCS 5bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator - 1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version - 2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// HARQ process number - 4 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, 4);
|
||
// Downlink assignment index - 2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dai[0].val, 2);
|
||
// TPC command for scheduled PUCCH - 2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
// PUCCH resource indicator - 3 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pucch_resource_indicator, 3);
|
||
// PDSCH-to-HARQ_feedback timing indicator - 3 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val, 3);
|
||
}
|
||
|
||
static void extract_00_tc_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 0_0 TC rnti\n");
|
||
|
||
// Frequency domain assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, dci_pdu_rel15->frequency_domain_assignment.nbits);
|
||
// Time domain assignment 4bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, 4);
|
||
// Frequency hopping flag E1 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_hopping_flag.val, 1);
|
||
// MCS 5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// HARQ process number 4bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, 4);
|
||
// TPC command for scheduled PUSCH E2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
}
|
||
|
||
static void extract_11_c_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 1_1 C rnti\n");
|
||
|
||
// Carrier indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->carrier_indicator.val, dci_pdu_rel15->carrier_indicator.nbits);
|
||
// BWP Indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->bwp_indicator.val, dci_pdu_rel15->bwp_indicator.nbits);
|
||
// Frequency domain resource assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, dci_pdu_rel15->frequency_domain_assignment.nbits);
|
||
// Time domain resource assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, dci_pdu_rel15->time_domain_assignment.nbits);
|
||
// VRB-to-PRB mapping
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->vrb_to_prb_mapping.val, dci_pdu_rel15->vrb_to_prb_mapping.nbits);
|
||
// PRB bundling size indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->prb_bundling_size_indicator.val, dci_pdu_rel15->prb_bundling_size_indicator.nbits);
|
||
// Rate matching indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rate_matching_indicator.val, dci_pdu_rel15->rate_matching_indicator.nbits);
|
||
// ZP CSI-RS trigger
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->zp_csi_rs_trigger.val, dci_pdu_rel15->zp_csi_rs_trigger.nbits);
|
||
// TB1
|
||
// MCS 5bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
//TB2
|
||
// MCS 5bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs2.val, dci_pdu_rel15->mcs2.nbits);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi2.val, dci_pdu_rel15->ndi2.nbits);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv2.val, dci_pdu_rel15->rv2.nbits);
|
||
// HARQ process number 4/5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, dci_pdu_rel15->harq_pid.nbits);
|
||
// Downlink assignment index
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dai[0].val, dci_pdu_rel15->dai[0].nbits);
|
||
// TPC command for scheduled PUCCH 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
// PUCCH resource indicator 3bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pucch_resource_indicator, 3);
|
||
// PDSCH-to-HARQ_feedback timing indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.val,
|
||
dci_pdu_rel15->pdsch_to_harq_feedback_timing_indicator.nbits);
|
||
// Antenna ports
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->antenna_ports.val, dci_pdu_rel15->antenna_ports.nbits);
|
||
// TCI
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->transmission_configuration_indication.val,
|
||
dci_pdu_rel15->transmission_configuration_indication.nbits);
|
||
// SRS request
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->srs_request.val, dci_pdu_rel15->srs_request.nbits);
|
||
// CBG transmission information
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->cbgti.val, dci_pdu_rel15->cbgti.nbits);
|
||
// CBG flushing out information
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->cbgfi.val, dci_pdu_rel15->cbgfi.nbits);
|
||
// DMRS sequence init
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dmrs_sequence_initialization.val, 1);
|
||
}
|
||
|
||
static void extract_01_c_rnti(dci_pdu_rel15_t *dci_pdu_rel15, const uint8_t *dci_pdu, int pos, const int N_RB)
|
||
{
|
||
LOG_D(NR_MAC_DCI, "Received dci 0_1 C rnti\n");
|
||
|
||
// Carrier indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->carrier_indicator.val, dci_pdu_rel15->carrier_indicator.nbits);
|
||
// UL/SUL Indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ul_sul_indicator.val, dci_pdu_rel15->ul_sul_indicator.nbits);
|
||
// BWP Indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->bwp_indicator.val, dci_pdu_rel15->bwp_indicator.nbits);
|
||
// Freq domain assignment max 16 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_domain_assignment.val, (int)ceil(log2((N_RB * (N_RB + 1)) >> 1)));
|
||
// Time domain assignment
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->time_domain_assignment.val, dci_pdu_rel15->time_domain_assignment.nbits);
|
||
// Not supported yet - skip for now
|
||
// Frequency hopping flag – 1 bit
|
||
// EXTRACT_DCI_ITEM(dci_pdu_rel15->frequency_hopping_flag.val, 1);
|
||
// MCS 5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->mcs, 5);
|
||
// New data indicator 1bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ndi, 1);
|
||
// Redundancy version 2bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->rv, 2);
|
||
// HARQ process number 4/5 bit
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->harq_pid.val, dci_pdu_rel15->harq_pid.nbits);
|
||
// 1st Downlink assignment index
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dai[0].val, dci_pdu_rel15->dai[0].nbits);
|
||
// 2nd Downlink assignment index
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dai[1].val, dci_pdu_rel15->dai[1].nbits);
|
||
// TPC command for scheduled PUSCH – 2 bits
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->tpc, 2);
|
||
// SRS resource indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->srs_resource_indicator.val, dci_pdu_rel15->srs_resource_indicator.nbits);
|
||
// Precoding info and n. of layers
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->precoding_information.val, dci_pdu_rel15->precoding_information.nbits);
|
||
// Antenna ports
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->antenna_ports.val, dci_pdu_rel15->antenna_ports.nbits);
|
||
// SRS request
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->srs_request.val, dci_pdu_rel15->srs_request.nbits);
|
||
// CSI request
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->csi_request.val, dci_pdu_rel15->csi_request.nbits);
|
||
// CBG transmission information
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->cbgti.val, dci_pdu_rel15->cbgti.nbits);
|
||
// PTRS DMRS association
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ptrs_dmrs_association.val, dci_pdu_rel15->ptrs_dmrs_association.nbits);
|
||
// Beta offset indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->beta_offset_indicator.val, dci_pdu_rel15->beta_offset_indicator.nbits);
|
||
// DMRS sequence initialization
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->dmrs_sequence_initialization.val, dci_pdu_rel15->dmrs_sequence_initialization.nbits);
|
||
// UL-SCH indicator
|
||
EXTRACT_DCI_ITEM(dci_pdu_rel15->ulsch_indicator, 1);
|
||
// UL/SUL indicator – 1 bit
|
||
/* commented for now (RK): need to get this from BWP descriptor
|
||
if (cfg->pucch_config.pucch_GroupHopping.value)
|
||
dci_pdu->= ((uint64_t)*dci_pdu>>(dci_size-pos)ul_sul_indicator&1)<<(dci_size-pos++);
|
||
*/
|
||
}
|
||
|
||
static int get_nrb_for_dci(NR_UE_MAC_INST_t *mac, nr_dci_format_t dci_format, int ss_type)
|
||
{
|
||
NR_UE_DL_BWP_t *current_DL_BWP = mac->current_DL_BWP;
|
||
NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
int N_RB;
|
||
if(current_DL_BWP)
|
||
N_RB = get_rb_bwp_dci(dci_format,
|
||
ss_type,
|
||
mac->type0_PDCCH_CSS_config.num_rbs,
|
||
current_UL_BWP->BWPSize,
|
||
current_DL_BWP->BWPSize,
|
||
mac->sc_info.initial_dl_BWPSize,
|
||
mac->sc_info.initial_dl_BWPSize);
|
||
else
|
||
N_RB = mac->type0_PDCCH_CSS_config.num_rbs;
|
||
|
||
if (N_RB == 0)
|
||
LOG_E(NR_MAC_DCI, "DCI configuration error! N_RB = 0\n");
|
||
|
||
return N_RB;
|
||
}
|
||
|
||
static nr_dci_format_t nr_extract_dci_00_10(NR_UE_MAC_INST_t *mac,
|
||
int pos,
|
||
const int rnti_type,
|
||
const uint8_t *dci_pdu,
|
||
const int slot,
|
||
const int ss_type)
|
||
{
|
||
nr_dci_format_t format = NR_DCI_NONE;
|
||
dci_pdu_rel15_t *dci_pdu_rel15 = NULL;
|
||
int format_indicator = -1;
|
||
int n_RB = 0;
|
||
|
||
switch (rnti_type) {
|
||
case TYPE_RA_RNTI_ :
|
||
format = NR_DL_DCI_FORMAT_1_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
n_RB = get_nrb_for_dci(mac, format, ss_type);
|
||
if (n_RB == 0)
|
||
return NR_DCI_NONE;
|
||
extract_10_ra_rnti(dci_pdu_rel15, dci_pdu, pos, n_RB);
|
||
break;
|
||
case TYPE_P_RNTI_ :
|
||
AssertFatal(false, "DCI for P-RNTI not handled yet\n");
|
||
break;
|
||
case TYPE_SI_RNTI_ :
|
||
format = NR_DL_DCI_FORMAT_1_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
n_RB = get_nrb_for_dci(mac, format, ss_type);
|
||
if (n_RB == 0)
|
||
return NR_DCI_NONE;
|
||
uint8_t sys_info = extract_10_si_rnti(dci_pdu_rel15, dci_pdu, pos, n_RB);
|
||
// sys info = 0 for SIB1 and 1 for other SIB
|
||
if (mac->get_sib1 == 0 && sys_info == 0)
|
||
return NR_DCI_NONE;
|
||
break;
|
||
case TYPE_C_RNTI_ :
|
||
// Identifier for DCI formats
|
||
EXTRACT_DCI_ITEM(format_indicator, 1);
|
||
if (format_indicator == 1) {
|
||
format = NR_DL_DCI_FORMAT_1_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
int n_RB = get_nrb_for_dci(mac, format, ss_type);
|
||
if (n_RB == 0)
|
||
return NR_DCI_NONE;
|
||
bool pdcch_order = extract_10_c_rnti(mac, dci_pdu_rel15, dci_pdu, pos, n_RB);
|
||
if (pdcch_order)
|
||
return NR_DCI_NONE;
|
||
}
|
||
else {
|
||
format = NR_UL_DCI_FORMAT_0_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
extract_00_c_rnti(dci_pdu_rel15, dci_pdu, pos);
|
||
}
|
||
dci_pdu_rel15->format_indicator = format_indicator;
|
||
break;
|
||
case TYPE_TC_RNTI_ :
|
||
case TYPE_MSGB_RNTI_:
|
||
// Identifier for DCI formats
|
||
EXTRACT_DCI_ITEM(format_indicator, 1);
|
||
if (format_indicator == 1) {
|
||
format = NR_DL_DCI_FORMAT_1_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
n_RB = get_nrb_for_dci(mac, format, ss_type);
|
||
if (n_RB == 0)
|
||
return NR_DCI_NONE;
|
||
extract_10_tc_rnti(dci_pdu_rel15, dci_pdu, pos, n_RB);
|
||
}
|
||
else {
|
||
format = NR_UL_DCI_FORMAT_0_0;
|
||
dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
extract_00_tc_rnti(dci_pdu_rel15, dci_pdu, pos);
|
||
}
|
||
dci_pdu_rel15->format_indicator = format_indicator;
|
||
break;
|
||
default :
|
||
AssertFatal(false, "Invalid RNTI type\n");
|
||
}
|
||
return format;
|
||
}
|
||
|
||
static nr_dci_format_t nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
|
||
const nfapi_nr_dci_formats_e dci_format,
|
||
const uint8_t dci_size,
|
||
const uint16_t rnti,
|
||
const int ss_type,
|
||
const uint8_t *dci_pdu,
|
||
const int slot)
|
||
{
|
||
LOG_D(NR_MAC_DCI,"nr_extract_dci_info : dci_pdu %lx, size %d, format %d\n", *(uint64_t *)dci_pdu, dci_size, dci_format);
|
||
int rnti_type = get_rnti_type(mac, rnti);
|
||
int pos = dci_size;
|
||
|
||
nr_dci_format_t format = NR_DCI_NONE;
|
||
switch(dci_format) {
|
||
case NFAPI_NR_FORMAT_0_0_AND_1_0 :
|
||
format = nr_extract_dci_00_10(mac, pos, rnti_type, dci_pdu, slot, ss_type);
|
||
break;
|
||
case NFAPI_NR_FORMAT_0_1_AND_1_1 :
|
||
if (rnti_type == TYPE_C_RNTI_) {
|
||
// Identifier for DCI formats
|
||
int format_indicator = 0;
|
||
EXTRACT_DCI_ITEM(format_indicator, 1);
|
||
if (format_indicator == 1) {
|
||
format = NR_DL_DCI_FORMAT_1_1;
|
||
dci_pdu_rel15_t *def_dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
def_dci_pdu_rel15->format_indicator = format_indicator;
|
||
extract_11_c_rnti(def_dci_pdu_rel15, dci_pdu, pos);
|
||
}
|
||
else {
|
||
format = NR_UL_DCI_FORMAT_0_1;
|
||
dci_pdu_rel15_t *def_dci_pdu_rel15 = &mac->def_dci_pdu_rel15[slot][format];
|
||
def_dci_pdu_rel15->format_indicator = format_indicator;
|
||
int n_RB = get_nrb_for_dci(mac, format, ss_type);
|
||
if (n_RB == 0)
|
||
return NR_DCI_NONE;
|
||
extract_01_c_rnti(def_dci_pdu_rel15, dci_pdu, pos, n_RB);
|
||
}
|
||
}
|
||
else {
|
||
LOG_E(NR_MAC_DCI, "RNTI type not supported for formats 01 or 11\n");
|
||
return NR_DCI_NONE;
|
||
}
|
||
break;
|
||
default :
|
||
LOG_E(NR_MAC_DCI, "DCI format not supported\n");
|
||
}
|
||
return format;
|
||
}
|
||
|
||
static void set_time_alignment(NR_UE_MAC_INST_t *mac, int ta, ta_type_t type, int frame, int slot)
|
||
{
|
||
NR_UL_TIME_ALIGNMENT_t *ul_time_alignment = &mac->ul_time_alignment;
|
||
ul_time_alignment->ta_command = ta;
|
||
ul_time_alignment->ta_apply = type;
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, mac->current_UL_BWP->scs);
|
||
const int n_slots_frame = mac->frame_structure.numb_slots_frame;
|
||
ul_time_alignment->frame = (frame + (slot + ntn_ue_koffset) / n_slots_frame) % MAX_FRAME_NUMBER;
|
||
ul_time_alignment->slot = (slot + ntn_ue_koffset) % n_slots_frame;
|
||
// start or restart the timeAlignmentTimer associated with the indicated TAG
|
||
nr_timer_start(&mac->time_alignment_timer);
|
||
}
|
||
|
||
static bool check_ra_contention_resolution(const uint8_t *pdu, const uint8_t *cont_res)
|
||
{
|
||
if (IS_SOFTMODEM_IQPLAYER) // Control is bypassed when replaying IQs (BMC)
|
||
return true;
|
||
for (int i = 0; i < 6; i++) {
|
||
if (pdu[i] != cont_res[i]) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static int nr_ue_validate_successrar(uint8_t *pduP,
|
||
int32_t pdu_len,
|
||
NR_UE_MAC_INST_t *mac,
|
||
uint8_t gNB_index,
|
||
frame_t frameP,
|
||
int slot)
|
||
{
|
||
// TS 38.321 - Figure 6.1.5a-1: BI MAC subheader
|
||
// TS 38.321 - Figure 6.1.5a-3: SuccessRAR MAC subheader
|
||
int n = 0;
|
||
uint8_t E = 1;
|
||
uint8_t cont_res_id[6];
|
||
RA_config_t *ra = &mac->ra;
|
||
ra->RA_backoff_limit = 0;
|
||
|
||
while (n < pdu_len && E) {
|
||
E = (pduP[n] >> 7) & 0x1;
|
||
uint8_t SUCESS_RAR_header_T1 = (pduP[n] >> 6) & 0x1;
|
||
if (SUCESS_RAR_header_T1 == 0) { // T2 exist
|
||
int SUCESS_RAR_header_T2 = (pduP[n] >> 5) & 0x1;
|
||
if (SUCESS_RAR_header_T2 == 0) { // BI
|
||
int bi_ms = table_7_2_1[(pduP[n] & 0x0F)] * ra->scaling_factor_bi;
|
||
int slots_per_ms = mac->frame_structure.numb_slots_frame / 10;
|
||
ra->RA_backoff_limit = bi_ms * slots_per_ms;
|
||
n++;
|
||
} else { // S
|
||
n++;
|
||
// TS 38.321 - Figure 6.2.3a-2: successRAR
|
||
for (int i = 0; i < 6; ++i)
|
||
cont_res_id[i] = pduP[n + i];
|
||
n += 6;
|
||
// Oct 7
|
||
ra->MsgB_R = 0;
|
||
ra->MsgB_CH_ACESS_CPEXT = (pduP[n] >> 5) & 0x3;
|
||
ra->MsgB_TPC = (pduP[n] >> 3) & 3;
|
||
ra->MsgB_HARQ_FTI = (int8_t)pduP[n] & 0x7;
|
||
// Oct 8
|
||
n++;
|
||
ra->PUCCH_RI = ((int8_t)pduP[n] >> 4) & 0x0F;
|
||
// Oct 8 and Oct 9
|
||
ra->timing_advance_command = ((uint16_t)(pduP[n] & 0xf) << 8) | pduP[n + 1];
|
||
n += 2;
|
||
// Oct 10 and Oct 11
|
||
ra->t_crnti = ((uint16_t)pduP[n] << 8) | pduP[n + 1];
|
||
n += 2;
|
||
|
||
LOG_D(NR_MAC,
|
||
"successRAR: Contention Resolution ID 0x%02x%02x%02x%02x%02x%02x R 0x%01x CH_ACESS_CPEXT 0x%02x TPC 0x%02x "
|
||
"HARQ_FTI 0x%03x PUCCH_RI 0x%04x TA 0x%012x CRNTI 0x%04x\n",
|
||
cont_res_id[0],
|
||
cont_res_id[1],
|
||
cont_res_id[2],
|
||
cont_res_id[3],
|
||
cont_res_id[4],
|
||
cont_res_id[5],
|
||
ra->MsgB_R,
|
||
ra->MsgB_CH_ACESS_CPEXT,
|
||
ra->MsgB_TPC,
|
||
ra->MsgB_HARQ_FTI,
|
||
ra->PUCCH_RI,
|
||
ra->timing_advance_command,
|
||
ra->t_crnti);
|
||
|
||
bool ra_success = check_ra_contention_resolution(cont_res_id, ra->cont_res_id);
|
||
|
||
if (ra->RA_active && ra_success) {
|
||
nr_timer_stop(&ra->response_window_timer);
|
||
nr_ra_succeeded(mac, gNB_index, frameP, slot);
|
||
} else if (!ra_success) {
|
||
nr_ra_backoff_setting(ra);
|
||
}
|
||
}
|
||
} else { // RAPID
|
||
int RAPID = pduP[n] & 0x3F;
|
||
n++;
|
||
LOG_D(MAC, "RAPID %d\n", RAPID);
|
||
AssertFatal(false, "FallbackRAR not implemented yet!\n");
|
||
}
|
||
}
|
||
const int ta = ((NR_MAC_CE_TA *)pduP)[1].TA_COMMAND;
|
||
|
||
set_time_alignment(mac, ta, adjustment_ta, frameP, slot);
|
||
return n;
|
||
}
|
||
|
||
///////////////////////////////////
|
||
// brief: nr_ue_process_mac_pdu
|
||
// function: parsing DL PDU header
|
||
///////////////////////////////////
|
||
// Header for DLSCH:
|
||
// Except:
|
||
// - DL-SCH: fixed-size MAC CE(known by LCID)
|
||
// - DL-SCH: padding
|
||
//
|
||
// |0|1|2|3|4|5|6|7| bit-wise
|
||
// |R|F| LCID |
|
||
// | L |
|
||
// |0|1|2|3|4|5|6|7| bit-wise
|
||
// |R|F| LCID |
|
||
// | L |
|
||
// | L |
|
||
////////////////////////////////
|
||
// Header for DLSCH:
|
||
// - DLSCH: fixed-size MAC CE(known by LCID)
|
||
// - DLSCH: padding, for single/multiple 1-oct padding CE(s)
|
||
//
|
||
// |0|1|2|3|4|5|6|7| bit-wise
|
||
// |R|R| LCID |
|
||
// LCID: The Logical Channel ID field identifies the logical channel instance of the corresponding MAC SDU or the type of the
|
||
// corresponding MAC CE or padding as described
|
||
// in Tables 6.2.1-1 and 6.2.1-2 for the DL-SCH and UL-SCH respectively. There is one LCID field per MAC subheader. The LCID
|
||
// field size is 6 bits;
|
||
// L: The Length field indicates the length of the corresponding MAC SDU or variable-sized MAC CE in bytes. There is one L field
|
||
// per MAC subheader except for subheaders
|
||
// corresponding to fixed-sized MAC CEs and padding. The size of the L field is indicated by the F field;
|
||
// F: lenght of L is 0:8 or 1:16 bits wide
|
||
// R: Reserved bit, set to zero.
|
||
////////////////////////////////
|
||
static void nr_ue_process_mac_pdu(NR_UE_MAC_INST_t *mac, nr_downlink_indication_t *dl_info, int pdu_id)
|
||
{
|
||
frame_t frameP = dl_info->frame;
|
||
int slot = dl_info->slot;
|
||
fapi_nr_pdsch_pdu_t *pdsch_pdu = &(dl_info->rx_ind->rx_indication_body + pdu_id)->pdsch_pdu;
|
||
uint8_t *pduP = pdsch_pdu->pdu;
|
||
int32_t pdu_len = (int32_t)pdsch_pdu->pdu_length;
|
||
uint8_t gNB_index = dl_info->gNB_index;
|
||
uint8_t CC_id = dl_info->cc_id;
|
||
uint8_t done = 0;
|
||
RA_config_t *ra = &mac->ra;
|
||
|
||
if (!pduP) {
|
||
return;
|
||
}
|
||
|
||
T(T_NRUE_MAC_DL_PDU_WITH_DATA, T_INT(mac->crnti), T_INT(frameP), T_INT(slot), T_INT(pdsch_pdu->harq_pid), T_BUFFER(pduP, pdu_len));
|
||
|
||
LOG_D(MAC,
|
||
"[%d.%d]: processing PDU %d (with length %d) of %d total number of PDUs...\n",
|
||
frameP,
|
||
slot,
|
||
pdu_id,
|
||
pdu_len,
|
||
dl_info->rx_ind->number_pdus);
|
||
|
||
if (ra->ra_type == RA_2_STEP && ra->ra_state == nrRA_WAIT_MSGB) {
|
||
int n = nr_ue_validate_successrar(pduP, pdu_len, mac, gNB_index, frameP, slot);
|
||
pduP += n;
|
||
pdu_len -= n;
|
||
}
|
||
|
||
while (!done && pdu_len > 0){
|
||
uint16_t mac_len = 0x0000;
|
||
uint16_t mac_subheader_len = 0x0001; // default to fixed-length subheader = 1-oct
|
||
uint8_t rx_lcid = ((NR_MAC_SUBHEADER_FIXED *)pduP)->LCID;
|
||
|
||
LOG_D(MAC, "[UE] LCID %d, PDU length %d\n", rx_lcid, pdu_len);
|
||
bool ret;
|
||
switch (rx_lcid) {
|
||
// MAC CE
|
||
case DL_SCH_LCID_CCCH:
|
||
// MSG4 RRC Setup 38.331
|
||
// variable length
|
||
ret=get_mac_len(pduP, pdu_len, &mac_len, &mac_subheader_len);
|
||
AssertFatal(ret, "The mac_len (%d) has an invalid size. PDU len = %d! \n", mac_len, pdu_len);
|
||
|
||
// Check if it is a valid CCCH message, we get all 00's messages very often
|
||
int i = 0;
|
||
for(i=0; i<(mac_subheader_len+mac_len); i++) {
|
||
if(pduP[i] != 0) {
|
||
break;
|
||
}
|
||
}
|
||
if (i == (mac_subheader_len+mac_len)) {
|
||
LOG_E(NR_MAC, "Invalid CCCH message!, pdu_len: %d\n", pdu_len);
|
||
done = 1;
|
||
break;
|
||
}
|
||
|
||
if (mac_len > 0) {
|
||
LOG_DDUMP(NR_MAC, (void *)pduP, mac_subheader_len + mac_len, LOG_DUMP_CHAR, "DL_SCH_LCID_CCCH (e.g. RRCSetup) payload: ");
|
||
nr_mac_rlc_data_ind(mac->ue_id, mac->ue_id, false, rx_lcid, (char *)(pduP + mac_subheader_len), mac_len);
|
||
}
|
||
break;
|
||
case DL_SCH_LCID_TCI_STATE_ACT_UE_SPEC_PDSCH:
|
||
case DL_SCH_LCID_APERIODIC_CSI_TRI_STATE_SUBSEL:
|
||
case DL_SCH_LCID_SP_CSI_RS_CSI_IM_RES_SET_ACT:
|
||
case DL_SCH_LCID_SP_SRS_ACTIVATION:
|
||
|
||
// 38.321 Ch6.1.3.14
|
||
// varialbe length
|
||
get_mac_len(pduP, pdu_len, &mac_len, &mac_subheader_len);
|
||
break;
|
||
|
||
case DL_SCH_LCID_RECOMMENDED_BITRATE:
|
||
// 38.321 Ch6.1.3.20
|
||
mac_len = 2;
|
||
break;
|
||
case DL_SCH_LCID_SP_ZP_CSI_RS_RES_SET_ACT:
|
||
// 38.321 Ch6.1.3.19
|
||
mac_len = 2;
|
||
break;
|
||
case DL_SCH_LCID_PUCCH_SPATIAL_RELATION_ACT:
|
||
// 38.321 Ch6.1.3.18
|
||
mac_len = 3;
|
||
break;
|
||
case DL_SCH_LCID_SP_CSI_REP_PUCCH_ACT:
|
||
// 38.321 Ch6.1.3.16
|
||
mac_len = 2;
|
||
break;
|
||
case DL_SCH_LCID_TCI_STATE_IND_UE_SPEC_PDCCH:
|
||
// 38.321 Ch6.1.3.15
|
||
mac_len = 2;
|
||
break;
|
||
case DL_SCH_LCID_DUPLICATION_ACT:
|
||
// 38.321 Ch6.1.3.11
|
||
mac_len = 1;
|
||
break;
|
||
case DL_SCH_LCID_SCell_ACT_4_OCT:
|
||
// 38.321 Ch6.1.3.10
|
||
mac_len = 4;
|
||
break;
|
||
case DL_SCH_LCID_SCell_ACT_1_OCT:
|
||
// 38.321 Ch6.1.3.10
|
||
mac_len = 1;
|
||
break;
|
||
case DL_SCH_LCID_L_DRX:
|
||
// 38.321 Ch6.1.3.6
|
||
// fixed length but not yet specify.
|
||
mac_len = 0;
|
||
break;
|
||
case DL_SCH_LCID_DRX:
|
||
// 38.321 Ch6.1.3.5
|
||
// fixed length but not yet specify.
|
||
mac_len = 0;
|
||
break;
|
||
case DL_SCH_LCID_TA_COMMAND:
|
||
// 38.321 Ch6.1.3.4
|
||
mac_len = 1;
|
||
|
||
const int ta = ((NR_MAC_CE_TA *)pduP)[1].TA_COMMAND;
|
||
const int tag = ((NR_MAC_CE_TA *)pduP)[1].TAGID;
|
||
|
||
if (tag != mac->tag_Id) {
|
||
LOG_E(NR_MAC, "MAC CE TAG %d does not correspond to the one configured at MAC %ld\n", tag, mac->tag_Id);
|
||
done = 1;
|
||
break;
|
||
}
|
||
|
||
set_time_alignment(mac, ta, adjustment_ta, frameP, slot);
|
||
|
||
if (ta == 31)
|
||
LOG_D(NR_MAC, "[%d.%d] Received TA_COMMAND %u TAGID %u CC_id %d \n", frameP, slot, ta, tag, CC_id);
|
||
else
|
||
LOG_I(NR_MAC, "[%d.%d] Received TA_COMMAND %u TAGID %u CC_id %d \n", frameP, slot, ta, tag, CC_id);
|
||
break;
|
||
case DL_SCH_LCID_CON_RES_ID:
|
||
// Clause 5.1.5 and 6.1.3.3 of 3GPP TS 38.321 version 16.2.1 Release 16
|
||
// MAC Header: 1 byte (R/R/LCID)
|
||
// MAC SDU: 6 bytes (UE Contention Resolution Identity)
|
||
mac_len = 6;
|
||
|
||
if (ra->ra_state == nrRA_WAIT_CONTENTION_RESOLUTION) {
|
||
LOG_D(NR_MAC,
|
||
"[UE %d]Frame %d Contention resolution identity: 0x%02x%02x%02x%02x%02x%02x Terminating RA procedure\n",
|
||
mac->ue_id,
|
||
frameP,
|
||
pduP[1],
|
||
pduP[2],
|
||
pduP[3],
|
||
pduP[4],
|
||
pduP[5],
|
||
pduP[6]);
|
||
|
||
nr_timer_stop(&ra->contention_resolution_timer);
|
||
bool ra_success = check_ra_contention_resolution(&pduP[1], ra->cont_res_id);
|
||
|
||
if (ra->RA_active && ra_success) {
|
||
nr_ra_succeeded(mac, gNB_index, frameP, slot);
|
||
} else if (!ra_success) {
|
||
// consider this Contention Resolution not successful and discard the successfully decoded MAC PDU
|
||
nr_ra_contention_resolution_failed(mac);
|
||
return;
|
||
}
|
||
}
|
||
break;
|
||
case DL_SCH_LCID_PADDING:
|
||
done = 1;
|
||
// end of MAC PDU, can ignore the rest.
|
||
break;
|
||
// MAC SDU
|
||
// From values 1 to 32 it equals to the identity of the logical channel
|
||
case 1 ... 32:
|
||
if (!get_mac_len(pduP, pdu_len, &mac_len, &mac_subheader_len))
|
||
return;
|
||
// discard the received subPDU if RB is suspended
|
||
if (is_lcid_suspended(mac, rx_lcid)) {
|
||
LOG_W(NR_MAC, "Received PDU for a suspended RB, corresponding to LCID %d. Dropping it.\n", rx_lcid);
|
||
break;
|
||
}
|
||
LOG_D(NR_MAC, "%4d.%2d : DLSCH -> LCID %d %d bytes\n", frameP, slot, rx_lcid, mac_len);
|
||
nr_mac_rlc_data_ind(mac->ue_id, mac->ue_id, false, rx_lcid, (char *)(pduP + mac_subheader_len), mac_len);
|
||
break;
|
||
default:
|
||
LOG_W(MAC, "unknown lcid %02x\n", rx_lcid);
|
||
break;
|
||
}
|
||
pduP += (mac_subheader_len + mac_len);
|
||
pdu_len -= (mac_subheader_len + mac_len);
|
||
if (pdu_len < 0)
|
||
LOG_E(MAC, "[UE %d][%d.%d] nr_ue_process_mac_pdu, residual mac pdu length %d < 0!\n", mac->ue_id, frameP, slot, pdu_len);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Function: generating MAC CEs (MAC CE and subheader) for the ULSCH PDU
|
||
* Parameters:
|
||
* @mac_ce pointer to the MAC sub-PDUs including the MAC CEs
|
||
* @mac pointer to the MAC instance
|
||
* Return: number of written bytes
|
||
*/
|
||
int nr_write_ce_ulsch_pdu(uint8_t *mac_ce,
|
||
NR_UE_MAC_INST_t *mac,
|
||
NR_SINGLE_ENTRY_PHR_MAC_CE *power_headroom,
|
||
const type_bsr_t *bsr,
|
||
uint8_t *mac_ce_end)
|
||
{
|
||
uint8_t *pdu = mac_ce;
|
||
if (power_headroom) {
|
||
// MAC CE fixed subheader
|
||
*(NR_MAC_SUBHEADER_FIXED *)mac_ce = (NR_MAC_SUBHEADER_FIXED){.R = 0, .LCID = UL_SCH_LCID_SINGLE_ENTRY_PHR};
|
||
mac_ce += sizeof(NR_MAC_SUBHEADER_FIXED);
|
||
*(NR_SINGLE_ENTRY_PHR_MAC_CE *)mac_ce = *power_headroom;
|
||
mac_ce += sizeof(NR_SINGLE_ENTRY_PHR_MAC_CE);
|
||
LOG_D(NR_MAC, "[UE] Generating ULSCH PDU : power_headroom pdu %p mac_ce %p b\n",
|
||
pdu, mac_ce);
|
||
}
|
||
|
||
switch (bsr->type_bsr) {
|
||
case b_short:
|
||
case b_short_trunc: {
|
||
*(NR_MAC_SUBHEADER_FIXED *)mac_ce =
|
||
(NR_MAC_SUBHEADER_FIXED){.R = 0, .LCID = bsr->type_bsr == b_short ? UL_SCH_LCID_S_BSR : UL_SCH_LCID_S_TRUNCATED_BSR};
|
||
mac_ce += sizeof(NR_MAC_SUBHEADER_FIXED);
|
||
*(NR_BSR_SHORT *)mac_ce = bsr->bsr.s;
|
||
mac_ce += sizeof(NR_BSR_SHORT);
|
||
LOG_D(NR_MAC, "[UE] Generating ULSCH PDU : bsr Buffer_size %d LcgID %d \n", bsr->bsr.s.Buffer_size, bsr->bsr.s.LcgID);
|
||
} break;
|
||
case b_long:
|
||
case b_long_trunc: {
|
||
// ch 6.1.3.1. TS 38.321
|
||
NR_MAC_SUBHEADER_SHORT *mac_pdu_subheader_ptr = (NR_MAC_SUBHEADER_SHORT *)mac_ce;
|
||
mac_ce += sizeof(NR_MAC_SUBHEADER_SHORT);
|
||
uint8_t *mark = mac_ce;
|
||
// Could move to nr_get_sdu()
|
||
NR_BSR_LONG *ceLong = (NR_BSR_LONG *)mac_ce;
|
||
*ceLong = (NR_BSR_LONG){0};
|
||
mac_ce += sizeof(NR_BSR_LONG);
|
||
// int NR_BSR_LONG_SIZE = 1;
|
||
if (bsr->bsr.lcg_bsr[0] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID0 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[0];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[1] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID1 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[1];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[2] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID2 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[2];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[3] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID3 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[3];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[4] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID4 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[4];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[5] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID5 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[5];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[6] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID6 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[6];
|
||
}
|
||
if (bsr->bsr.lcg_bsr[7] && mac_ce < mac_ce_end) {
|
||
ceLong->LcgID7 = 1;
|
||
*mac_ce++ = bsr->bsr.lcg_bsr[7];
|
||
}
|
||
*mac_pdu_subheader_ptr =
|
||
(NR_MAC_SUBHEADER_SHORT){.LCID = bsr->type_bsr == b_long ? UL_SCH_LCID_L_BSR : UL_SCH_LCID_L_TRUNCATED_BSR,
|
||
.L = mac_ce - mark};
|
||
LOG_D(NR_MAC,
|
||
"[UE] Generating ULSCH PDU : long_bsr size %d Lcgbit 0x%02x Buffer_size %d %d %d %d %d %d %d %d\n",
|
||
((NR_MAC_SUBHEADER_SHORT *)mac_pdu_subheader_ptr)->L,
|
||
*mac_ce,
|
||
bsr->bsr.lcg_bsr[0],
|
||
bsr->bsr.lcg_bsr[1],
|
||
bsr->bsr.lcg_bsr[2],
|
||
bsr->bsr.lcg_bsr[3],
|
||
bsr->bsr.lcg_bsr[4],
|
||
bsr->bsr.lcg_bsr[5],
|
||
bsr->bsr.lcg_bsr[6],
|
||
bsr->bsr.lcg_bsr[7]);
|
||
} break;
|
||
case b_none:
|
||
break;
|
||
default:
|
||
DevAssert(false);
|
||
}
|
||
|
||
return mac_ce - pdu;
|
||
}
|
||
|
||
static void handle_rar_reception(NR_UE_MAC_INST_t *mac, NR_MAC_RAR *rar, frame_t frame, int slot)
|
||
{
|
||
RAR_grant_t rar_grant;
|
||
RA_config_t *ra = &mac->ra;
|
||
#ifdef DEBUG_RAR
|
||
// CSI
|
||
unsigned char csi_req = (unsigned char)(rar->UL_GRANT_4 & 0x01);
|
||
#endif
|
||
|
||
// TPC
|
||
unsigned char tpc_command = (unsigned char)((rar->UL_GRANT_4 >> 1) & 0x07);
|
||
ra->Msg3_TPC = (tpc_command << 1) - 6;
|
||
|
||
// MCS
|
||
rar_grant.mcs = (unsigned char)(rar->UL_GRANT_4 >> 4);
|
||
// time alloc
|
||
rar_grant.Msg3_t_alloc = (unsigned char)(rar->UL_GRANT_3 & 0x0f);
|
||
// frequency alloc
|
||
rar_grant.Msg3_f_alloc = (uint16_t)((rar->UL_GRANT_3 >> 4) | (rar->UL_GRANT_2 << 4) | ((rar->UL_GRANT_1 & 0x03) << 12));
|
||
// frequency hopping
|
||
rar_grant.freq_hopping = (unsigned char)(rar->UL_GRANT_1 >> 2);
|
||
|
||
// Schedule Msg3
|
||
const NR_UE_UL_BWP_t *current_UL_BWP = mac->current_UL_BWP;
|
||
const NR_UE_DL_BWP_t *current_DL_BWP = mac->current_DL_BWP;
|
||
const NR_BWP_PDCCH_t *pdcch_config = &mac->config_BWP_PDCCH[current_DL_BWP->bwp_id];
|
||
const NR_SearchSpace_t *ra_SS = get_common_search_space(mac, pdcch_config->ra_SS_id);
|
||
NR_tda_info_t tda_info = get_ul_tda_info(current_UL_BWP,
|
||
*ra_SS->controlResourceSetId,
|
||
ra_SS->searchSpaceType->present,
|
||
TYPE_RA_RNTI_,
|
||
rar_grant.Msg3_t_alloc);
|
||
if (!tda_info.valid_tda || tda_info.nrOfSymbols == 0) {
|
||
LOG_E(MAC, "Cannot schedule Msg3. Something wrong in TDA information\n");
|
||
// resume RAR response window timer if MSG2 decoding failed
|
||
nr_timer_suspension(&mac->ra.response_window_timer);
|
||
return;
|
||
}
|
||
frame_t frame_tx = 0;
|
||
int slot_tx = 0;
|
||
const int ntn_ue_koffset = GET_NTN_UE_K_OFFSET(&mac->phy_config.config_req.ntn_config, mac->current_UL_BWP->scs);
|
||
int ret = nr_ue_pusch_scheduler(mac, 1, frame, slot, &frame_tx, &slot_tx, tda_info.k2 + ntn_ue_koffset);
|
||
|
||
// TA command
|
||
// if the timeAlignmentTimer associated with this TAG is not running
|
||
if (!nr_timer_is_active(&mac->time_alignment_timer)) {
|
||
const int ta = rar->TA2 + (rar->TA1 << 5);
|
||
set_time_alignment(mac, ta, rar_ta, frame_tx, slot_tx);
|
||
LOG_W(MAC, "received TA command %d\n", 31 + ta);
|
||
}
|
||
// else ignore the received Timing Advance Command
|
||
|
||
#ifdef DEBUG_RAR
|
||
LOG_I(NR_MAC, "rarh->E = 0x%x\n", rarh->E);
|
||
LOG_I(NR_MAC, "rarh->T = 0x%x\n", rarh->T);
|
||
LOG_I(NR_MAC, "rarh->RAPID = 0x%x (%i)\n", rarh->RAPID, rarh->RAPID);
|
||
|
||
LOG_I(NR_MAC, "rar->R = 0x%x\n", rar->R);
|
||
LOG_I(NR_MAC, "rar->TA1 = 0x%x\n", rar->TA1);
|
||
|
||
LOG_I(NR_MAC, "rar->TA2 = 0x%x\n", rar->TA2);
|
||
LOG_I(NR_MAC, "rar->UL_GRANT_1 = 0x%x\n", rar->UL_GRANT_1);
|
||
|
||
LOG_I(NR_MAC, "rar->UL_GRANT_2 = 0x%x\n", rar->UL_GRANT_2);
|
||
LOG_I(NR_MAC, "rar->UL_GRANT_3 = 0x%x\n", rar->UL_GRANT_3);
|
||
LOG_I(NR_MAC, "rar->UL_GRANT_4 = 0x%x\n", rar->UL_GRANT_4);
|
||
|
||
LOG_I(NR_MAC, "rar->TCRNTI_1 = 0x%x\n", rar->TCRNTI_1);
|
||
LOG_I(NR_MAC, "rar->TCRNTI_2 = 0x%x\n", rar->TCRNTI_2);
|
||
|
||
LOG_I(NR_MAC,
|
||
"[%d.%d]: [UE %d] Received RAR with t_alloc %d f_alloc %d ta_command %d mcs %d freq_hopping %d tpc_command %d\n",
|
||
frame,
|
||
slot,
|
||
mac->ue_id,
|
||
rar_grant.Msg3_t_alloc,
|
||
rar_grant.Msg3_f_alloc,
|
||
ta_command,
|
||
rar_grant.mcs,
|
||
rar_grant.freq_hopping,
|
||
tpc_command);
|
||
#endif
|
||
|
||
if (ret != -1) {
|
||
uint16_t rnti = mac->crnti;
|
||
// Upon successful reception, set the T-CRNTI to the RAR value
|
||
// if the RA preamble is selected among the contention-based RA Preambles
|
||
if (!ra->cfra) {
|
||
ra->t_crnti = rar->TCRNTI_2 + (rar->TCRNTI_1 << 8);
|
||
rnti = ra->t_crnti;
|
||
if (!mac->msg3_C_RNTI)
|
||
nr_mac_rrc_msg3_ind(mac->ue_id, rnti, false);
|
||
}
|
||
fapi_nr_ul_config_request_pdu_t *pdu = lockGet_ul_config(mac, frame_tx, slot_tx, FAPI_NR_UL_CONFIG_TYPE_PUSCH);
|
||
if (!pdu)
|
||
return;
|
||
// Config Msg3 PDU
|
||
int ret = nr_config_pusch_pdu(mac,
|
||
&tda_info,
|
||
&pdu->pusch_config_pdu,
|
||
NULL,
|
||
NULL,
|
||
&rar_grant,
|
||
rnti,
|
||
NR_SearchSpace__searchSpaceType_PR_common,
|
||
NR_DCI_NONE);
|
||
if (ret != 0)
|
||
remove_ul_config_last_item(pdu);
|
||
release_ul_config(pdu, false);
|
||
}
|
||
}
|
||
|
||
/////////////////////////////////////
|
||
// Random Access Response PDU //
|
||
// TS 38.213 ch 8.2 //
|
||
// TS 38.321 ch 6.2.3 //
|
||
/////////////////////////////////////
|
||
//| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |// bit-wise
|
||
//| E | T | R A P I D |//
|
||
//| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |//
|
||
//| R | T A |//
|
||
//| T A | UL grant |//
|
||
//| UL grant |//
|
||
//| UL grant |//
|
||
//| UL grant |//
|
||
//| T C - R N T I |//
|
||
//| T C - R N T I |//
|
||
/////////////////////////////////////
|
||
// UL grant (27 bits) //
|
||
/////////////////////////////////////
|
||
//| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |// bit-wise
|
||
//|-------------------|FHF|F_alloc|//
|
||
//| Freq allocation |//
|
||
//| F_alloc |Time allocation|//
|
||
//| MCS | TPC |CSI|//
|
||
/////////////////////////////////////
|
||
// TbD WIP Msg3 development ongoing
|
||
// - apply UL grant freq alloc & time alloc as per 8.2 TS 38.213
|
||
// - apply tpc command
|
||
// WIP fix:
|
||
// - time domain indication hardcoded to 0 for k2 offset
|
||
// - extend TS 38.213 ch 8.3 Msg3 PUSCH
|
||
// - b buffer
|
||
// - ulsch power offset
|
||
// - optimize: mu_pusch, j and table_6_1_2_1_1_2_time_dom_res_alloc_A are already defined in nr_ue_procedures
|
||
static void nr_ue_process_rar(NR_UE_MAC_INST_t *mac, nr_downlink_indication_t *dl_info, int pdu_id)
|
||
{
|
||
frame_t frame = dl_info->frame;
|
||
int slot = dl_info->slot;
|
||
|
||
if(dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.ack_nack == 0) {
|
||
LOG_W(NR_MAC,"[UE %d][RAPROC][%d.%d] CRC check failed on RAR (NAK)\n", mac->ue_id, frame, slot);
|
||
return;
|
||
}
|
||
|
||
RA_config_t *ra = &mac->ra;
|
||
ra->t_crnti = 0;
|
||
uint8_t n_subPDUs = 0; // number of RAR payloads
|
||
uint8_t n_subheaders = 0; // number of MAC RAR subheaders
|
||
uint8_t *dlsch_buffer = dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.pdu;
|
||
NR_RA_HEADER_RAPID *rarh = (NR_RA_HEADER_RAPID *) dlsch_buffer; // RAR subheader pointer
|
||
NR_MAC_RAR *rar = (NR_MAC_RAR *) (dlsch_buffer + 1); // RAR subPDU pointer
|
||
uint8_t preamble_index = ra->ra_PreambleIndex;
|
||
uint16_t rnti = mac->ra.ra_rnti;
|
||
|
||
T(T_NRUE_MAC_DL_RAR_PDU_WITH_DATA, T_INT(rnti), T_INT(frame), T_INT(slot),
|
||
T_BUFFER(dlsch_buffer, dl_info->rx_ind->rx_indication_body[pdu_id].pdsch_pdu.pdu_length));
|
||
|
||
ra->RA_backoff_limit = 0;
|
||
LOG_D(NR_MAC, "[%d.%d]: [UE %d][RAPROC] MAC received RAR (current preamble %d)\n", frame, slot, mac->ue_id, preamble_index);
|
||
|
||
while (1) {
|
||
n_subheaders++;
|
||
if (rarh->T == 1) {
|
||
n_subPDUs++;
|
||
LOG_I(NR_MAC, "[UE %d][RAPROC][RA-RNTI %04x] Got RAPID RAR subPDU\n", mac->ue_id, rnti);
|
||
} else {
|
||
int bi_ms = table_7_2_1[((NR_RA_HEADER_BI *)rarh)->BI] * ra->scaling_factor_bi;
|
||
int slots_per_ms = mac->frame_structure.numb_slots_frame / 10;
|
||
ra->RA_backoff_limit = bi_ms * slots_per_ms;
|
||
LOG_I(NR_MAC, "[UE %d][RAPROC][RA-RNTI %04x] Got BI RAR subPDU %d ms\n", mac->ue_id, rnti, bi_ms);
|
||
if (((NR_RA_HEADER_BI *)rarh)->E == 1) {
|
||
rarh += sizeof(NR_RA_HEADER_BI);
|
||
continue;
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
if (rarh->RAPID == preamble_index) {
|
||
// The MAC entity may stop ra-ResponseWindow (and hence monitoring for Random Access Response(s)) after
|
||
// successful reception of a Random Access Response containing Random Access Preamble identifiers
|
||
// that matches the transmitted PREAMBLE_INDEX.
|
||
nr_timer_stop(&ra->response_window_timer);
|
||
LOG_A(NR_MAC, "[UE %d][RAPROC][%d.%d] Found RAR with the intended RAPID %d\n", mac->ue_id, frame, slot, rarh->RAPID);
|
||
rar = (NR_MAC_RAR *) (dlsch_buffer + n_subheaders + (n_subPDUs - 1) * sizeof(NR_MAC_RAR));
|
||
handle_rar_reception(mac, rar, frame, slot);
|
||
if (ra->cfra)
|
||
nr_ra_succeeded(mac, dl_info->gNB_index, frame, slot);
|
||
break;
|
||
}
|
||
if (rarh->E == 0) {
|
||
LOG_W(NR_MAC,"[UE %d][RAPROC][%d.%d] Received RAR preamble (%d) doesn't match the intended RAPID (%d)\n",
|
||
mac->ue_id,
|
||
frame,
|
||
slot,
|
||
rarh->RAPID,
|
||
preamble_index);
|
||
// resume RAR response window timer if MSG2 decoding failed
|
||
nr_timer_suspension(&mac->ra.response_window_timer);
|
||
break;
|
||
} else {
|
||
rarh += sizeof(NR_MAC_RAR) + 1;
|
||
}
|
||
}
|
||
|
||
#ifdef DEBUG_RAR
|
||
LOG_D(NR_MAC,
|
||
"[DEBUG_RAR] (%d,%d) number of RAR subheader %d; number of RAR pyloads %d\n",
|
||
frame,
|
||
slot,
|
||
n_subheaders,
|
||
n_subPDUs);
|
||
LOG_D(NR_MAC,
|
||
"[DEBUG_RAR] Received RAR (%02x|%02x.%02x.%02x.%02x.%02x.%02x) for preamble %d/%d\n",
|
||
*(uint8_t *) rarh,
|
||
rar[0],
|
||
rar[1],
|
||
rar[2],
|
||
rar[3],
|
||
rar[4],
|
||
rar[5],
|
||
rarh->RAPID,
|
||
preamble_index);
|
||
#endif
|
||
return;
|
||
}
|
||
|