269 lines
12 KiB
C
Executable File
269 lines
12 KiB
C
Executable File
/*
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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
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* 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
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* 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 proto.h
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* \brief MAC functions prototypes for gNB and UE
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* \author R. Knopp, K.H. HSU
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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
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* \note
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* \warning
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*/
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#ifndef __LAYER2_MAC_UE_PROTO_H__
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#define __LAYER2_MAC_UE_PROTO_H__
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#include "mac_defs.h"
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#include "mac.h"
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#include "PHY/defs_nr_UE.h"
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#include "RRC/NR_UE/rrc_defs.h"
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/**\brief decode mib pdu in NR_UE, from if_module ul_ind with P7 tx_ind message
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\param module_id module id
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\param cc_id component carrier id
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\param gNB_index gNB index
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\param extra_bits extra bits for frame calculation
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\param l_ssb_equal_64 check if ssb number of candicate is equal 64, 1=equal; 0=non equal. Reference 38.212 7.1.1
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\param pduP pointer to pdu
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\param pdu_length length of pdu
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\param cell_id cell id */
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int8_t nr_ue_decode_mib(
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module_id_t module_id,
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int cc_id,
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uint8_t gNB_index,
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uint8_t extra_bits,
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uint32_t ssb_length,
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uint32_t ssb_index,
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void *pduP,
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uint16_t cell_id );
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/**\brief primitive from RRC layer to MAC layer for configuration L1/L2, now supported 4 rrc messages: MIB, cell_group_config for MAC/PHY, spcell_config(serving cell config)
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\param module_id module id
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\param cc_id component carrier id
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\param gNB_index gNB index
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\param mibP pointer to RRC message MIB
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\param sccP pointer to ServingCellConfigCommon structure,
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\param spcell_configP pointer to RRC message serving cell config*/
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int nr_rrc_mac_config_req_ue(
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module_id_t module_id,
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int cc_idP,
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uint8_t gNB_index,
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NR_MIB_t *mibP,
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//NR_ServingCellConfigCommon_t *sccP,
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NR_CellGroupConfig_t *cell_group_config);
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/**\brief initialization NR UE MAC instance(s), total number of MAC instance based on NB_NR_UE_MAC_INST*/
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NR_UE_MAC_INST_t * nr_l2_init_ue(NR_UE_RRC_INST_t* rrc_inst);
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/**\brief fetch MAC instance by module_id, within 0 - (NB_NR_UE_MAC_INST-1)
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\param module_id index of MAC instance(s)*/
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NR_UE_MAC_INST_t *get_mac_inst(
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module_id_t module_id);
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/**\brief called at each slot, slot length based on numerology. now use u=0, scs=15kHz, slot=1ms
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performs BSR/SR/PHR procedures, random access procedure handler and DLSCH/ULSCH procedures.
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\param dl_info DL indication
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\param ul_info UL indication*/
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NR_UE_L2_STATE_t nr_ue_scheduler(nr_downlink_indication_t *dl_info, nr_uplink_indication_t *ul_info);
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/* \brief Get SR payload (0,1) from UE MAC
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@param Mod_id Instance id of UE in machine
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@param CC_id Component Carrier index
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@param eNB_id Index of eNB that UE is attached to
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@param rnti C_RNTI of UE
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@param subframe subframe number
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@returns 0 for no SR, 1 for SR
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*/
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uint32_t ue_get_SR(module_id_t module_idP, int CC_id, frame_t frameP,
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uint8_t eNB_id, rnti_t rnti, sub_frame_t subframe);
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int8_t nr_ue_get_SR(module_id_t module_idP, int CC_id, frame_t frameP, uint8_t eNB_id, uint16_t rnti, sub_frame_t subframe);
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int8_t nr_ue_process_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, dci_pdu_rel15_t *dci, uint16_t rnti, uint32_t dci_format);
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int nr_ue_process_dci_indication_pdu(module_id_t module_id,int cc_id, int gNB_index,fapi_nr_dci_indication_pdu_t *dci);
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uint32_t get_ssb_frame(uint32_t test);
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uint32_t get_ssb_slot(uint32_t ssb_index);
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uint32_t mr_ue_get_SR(module_id_t module_idP, int CC_id, frame_t frameP, uint8_t eNB_id, uint16_t rnti, sub_frame_t subframe);
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/* \brief Get payload (MAC PDU) from UE PHY
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@param module_idP Instance id of UE in machine
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@param CC_id Component Carrier index
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@param frameP Current Rx frame
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@param slotP Current Rx slot
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@param pdu Pointer to the MAC PDU
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@param pdu_len Length of the MAC PDU
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@param gNB_id Index of gNB that UE is attached to
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@param ul_time_alignment of struct handling the timing advance parameters
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@returns void
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*/
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void nr_ue_send_sdu(module_id_t module_idP,
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uint8_t CC_id,
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frame_t frameP,
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int slotP,
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uint8_t * pdu,
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uint16_t pdu_len,
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uint8_t gNB_index,
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NR_UL_TIME_ALIGNMENT_t *ul_time_alignment);
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void nr_ue_process_mac_pdu(module_id_t module_idP,
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uint8_t CC_id,
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frame_t frameP,
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uint8_t *pduP,
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uint16_t mac_pdu_len,
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uint8_t gNB_index,
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NR_UL_TIME_ALIGNMENT_t *ul_time_alignment);
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uint16_t nr_generate_ulsch_pdu(uint8_t *sdus_payload,
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uint8_t *pdu,
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uint8_t num_sdus,
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uint16_t *sdu_lengths,
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uint8_t *sdu_lcids,
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uint8_t power_headroom,
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uint16_t crnti,
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uint16_t truncated_bsr,
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uint16_t short_bsr,
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uint16_t long_bsr,
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unsigned short post_padding,
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uint16_t buflen);
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int8_t nr_ue_process_dlsch(module_id_t module_id, int cc_id, uint8_t gNB_index, fapi_nr_dci_indication_t *dci_ind, void *pduP, uint32_t pdu_len);
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void ue_dci_configuration(NR_UE_MAC_INST_t *mac, fapi_nr_dl_config_request_t *dl_config, frame_t frame, int slot);
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void nr_extract_dci_info(NR_UE_MAC_INST_t *mac,
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int dci_format,
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uint8_t dci_length,
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uint16_t rnti,
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uint64_t *dci_pdu,
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dci_pdu_rel15_t *nr_pdci_info_extracted);
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uint8_t
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nr_ue_get_sdu(module_id_t module_idP, int CC_id, frame_t frameP,
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sub_frame_t subframe, uint8_t eNB_index,
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uint8_t *ulsch_buffer, uint16_t buflen, uint8_t *access_mode) ;
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int set_tdd_config_nr_ue(fapi_nr_config_request_t *cfg, int mu,
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int nrofDownlinkSlots, int nrofDownlinkSymbols,
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int nrofUplinkSlots, int nrofUplinkSymbols);
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/** \brief Function for UE/PHY to compute PUSCH transmit power in power-control procedure.
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@param Mod_id Module id of UE
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@returns Po_NOMINAL_PUSCH (PREAMBLE_RECEIVED_TARGET_POWER+DELTA_PREAMBLE
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*/
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int nr_get_Po_NOMINAL_PUSCH(NR_PRACH_RESOURCES_t *prach_resources, module_id_t module_idP, uint8_t CC_id);
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/** \brief Function to compute DELTA_PREAMBLE from 38.321 subclause 7.3
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(for RA power ramping procedure and Msg3 PUSCH power control policy)
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@param Mod_id Module id of UE
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@returns DELTA_PREAMBLE
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*/
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int8_t nr_get_DELTA_PREAMBLE(module_id_t mod_id, int CC_id, uint16_t prach_format);
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/* Random Access */
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/* \brief This function schedules the PRACH according to prach_ConfigurationIndex and TS 38.211 tables 6.3.3.2.x
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and fills the PRACH PDU per each FD occasion.
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@param module_idP Index of UE instance
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@param frameP Frame index
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@param slotP Slot index
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@returns void
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*/
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void nr_ue_prach_scheduler(module_id_t module_idP, frame_t frameP, sub_frame_t slotP);
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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 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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uint16_t nr_ue_process_rar(module_id_t mod_id,
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int CC_id,
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frame_t frameP,
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uint8_t * dlsch_buffer,
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rnti_t * t_crnti,
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uint8_t preamble_index,
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uint8_t * selected_rar_buffer);
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void nr_process_rar(nr_downlink_indication_t *dl_info);
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void ue_contention_resolution(module_id_t module_id, uint8_t gNB_index, int cc_id, frame_t tx_frame);
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void nr_ra_failed(uint8_t Mod_id, uint8_t CC_id, uint8_t gNB_index);
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void nr_ra_succeeded(uint8_t Mod_id, uint8_t CC_id, uint8_t gNB_index);
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/* \brief Function called by PHY to retrieve information to be transmitted using the RA procedure.
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If the UE is not in PUSCH mode for a particular eNB index, this is assumed to be an Msg3 and MAC
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attempts to retrieves the CCCH message from RRC. If the UE is in PUSCH mode for a particular eNB
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index and PUCCH format 0 (Scheduling Request) is not activated, the MAC may use this resource for
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andom-access to transmit a BSR along with the C-RNTI control element (see 5.1.4 from 36.321)
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@param mod_id Index of UE instance
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@param CC_id Component Carrier Index
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@param frame
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@param gNB_id gNB index
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@param nr_tti_tx slot for PRACH transmission
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@returns indication to generate PRACH to phy */
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uint8_t nr_ue_get_rach(NR_PRACH_RESOURCES_t *prach_resources,
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module_id_t mod_id,
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int CC_id,
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UE_MODE_t UE_mode,
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frame_t frame,
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uint8_t gNB_id,
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int nr_tti_tx);
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/* \brief Function implementing the routine for the selection of Random Access resources (5.1.2 TS 38.321).
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@param module_idP Index of UE instance
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@param CC_id Component Carrier Index
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@param gNB_index gNB index
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@param t_id
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@param rach_ConfigDedicated
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@returns void */
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void nr_get_prach_resources(module_id_t mod_id,
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int CC_id,
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uint8_t gNB_id,
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uint8_t t_id,
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uint8_t first_Msg3,
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NR_PRACH_RESOURCES_t *prach_resources,
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NR_RACH_ConfigDedicated_t * rach_ConfigDedicated);
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void nr_Msg1_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint8_t gNB_id);
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void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint8_t gNB_id);
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void nr_ue_msg2_scheduler(module_id_t mod_id, uint16_t rach_frame, uint16_t rach_slot, uint16_t *msg2_frame, uint16_t *msg2_slot);
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#endif
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/** @}*/
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