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openairinterface5g/openair2/LAYER2/MAC/eNB_scheduler_ulsch.c
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file eNB_scheduler_ulsch.c
* \brief eNB procedures for the ULSCH transport channel
* \author Navid Nikaein and Raymond Knopp
* \date 2010 - 2014
* \email: navid.nikaein@eurecom.fr
* \version 1.0
* @ingroup _mac
*/
/* indented with: indent -kr eNB_scheduler_RA.c */
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_proto.h"
#include "LAYER2/MAC/mac_extern.h"
#include "common/utils/LOG/log.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "nfapi/oai_integration/vendor_ext.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "PHY/LTE_TRANSPORT/transport_common_proto.h"
#include "RRC/LTE/rrc_extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "assertions.h"
#include "pdcp.h"
#if defined(ENABLE_ITTI)
#include "intertask_interface.h"
#endif
#include "ENB_APP/flexran_agent_defs.h"
#include "flexran_agent_ran_api.h"
#include "header.pb-c.h"
#include "flexran.pb-c.h"
#include "flexran_agent_mac.h"
#include <dlfcn.h>
#include "T.h"
#include "common/ran_context.h"
extern RAN_CONTEXT_t RC;
#define ENABLE_MAC_PAYLOAD_DEBUG
#define DEBUG_eNB_SCHEDULER 1
extern int oai_nfapi_hi_dci0_req(nfapi_hi_dci0_request_t *hi_dci0_req);
extern void add_subframe(uint16_t *frameP, uint16_t *subframeP, int offset);
extern uint16_t sfnsf_add_subframe(uint16_t frameP, uint16_t subframeP, int offset);
extern int oai_nfapi_ul_config_req(nfapi_ul_config_request_t *ul_config_req);
// This table holds the allowable PRB sizes for ULSCH transmissions
uint8_t rb_table[34] = {
1, 2, 3, 4, 5, // 0-4
6, 8, 9, 10, 12, // 5-9
15, 16, 18, 20, 24, // 10-14
25, 27, 30, 32, 36, // 15-19
40, 45, 48, 50, 54, // 20-24
60, 64, 72, 75, 80, // 25-29
81, 90, 96, 100 // 30-33
};
extern mui_t rrc_eNB_mui;
//-----------------------------------------------------------------------------
/*
* When data are received on PHY and transmitted to MAC
*/
void
rx_sdu(const module_id_t enb_mod_idP,
const int CC_idP,
const frame_t frameP,
const sub_frame_t subframeP,
const rnti_t rntiP,
uint8_t *sduP,
const uint16_t sdu_lenP,
const uint16_t timing_advance,
const uint8_t ul_cqi)
//-----------------------------------------------------------------------------
{
int current_rnti = 0;
int UE_id = -1;
int RA_id = 0;
int old_rnti = -1;
int old_UE_id = -1;
int crnti_rx = 0;
int harq_pid = 0;
int first_rb = 0;
unsigned char num_ce = 0;
unsigned char num_sdu = 0;
unsigned char *payload_ptr = NULL;
unsigned char rx_ces[MAX_NUM_CE];
unsigned char rx_lcids[NB_RB_MAX];
unsigned short rx_lengths[NB_RB_MAX];
uint8_t lcgid = 0;
int lcgid_updated[4] = {0, 0, 0, 0};
eNB_MAC_INST *mac = NULL;
UE_list_t *UE_list = NULL;
rrc_eNB_ue_context_t *ue_contextP = NULL;
UE_sched_ctrl_t *UE_scheduling_control = NULL;
UE_TEMPLATE *UE_template_ptr = NULL;
/* Init */
current_rnti = rntiP;
UE_id = find_UE_id(enb_mod_idP, current_rnti);
mac = RC.mac[enb_mod_idP];
harq_pid = subframe2harqpid(&mac->common_channels[CC_idP], frameP, subframeP);
UE_list = &mac->UE_list;
memset(rx_ces, 0, MAX_NUM_CE * sizeof(unsigned char));
memset(rx_lcids, 0, NB_RB_MAX * sizeof(unsigned char));
memset(rx_lengths, 0, NB_RB_MAX * sizeof(unsigned short));
start_meas(&mac->rx_ulsch_sdu);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU, 1);
if (opt_enabled == 1) {
trace_pdu(DIRECTION_UPLINK, sduP, sdu_lenP, 0, WS_C_RNTI, current_rnti, frameP, subframeP, 0, 0);
LOG_D(OPT, "[eNB %d][ULSCH] Frame %d rnti %x with size %d\n",
enb_mod_idP,
frameP,
current_rnti,
sdu_lenP);
}
if (UE_id != -1) {
UE_scheduling_control = &(UE_list->UE_sched_ctrl[UE_id]);
UE_template_ptr = &(UE_list->UE_template[CC_idP][UE_id]);
LOG_D(MAC, "[eNB %d][PUSCH %d] CC_id %d %d.%d Received ULSCH sdu round %d from PHY (rnti %x, UE_id %d) ul_cqi %d\n",
enb_mod_idP,
harq_pid,
CC_idP,
frameP,
subframeP,
UE_scheduling_control->round_UL[CC_idP][harq_pid],
current_rnti,
UE_id,
ul_cqi);
AssertFatal(UE_scheduling_control->round_UL[CC_idP][harq_pid] < 8, "round >= 8\n");
if (sduP != NULL) {
UE_scheduling_control->ul_inactivity_timer = 0;
UE_scheduling_control->ul_failure_timer = 0;
UE_scheduling_control->ul_scheduled &= (~(1 << harq_pid));
/* Update with smoothing: 3/4 of old value and 1/4 of new.
* This is the logic that was done in the function
* lte_est_timing_advance_pusch, maybe it's not necessary?
* maybe it's even not correct at all?
*/
UE_scheduling_control->ta_update = (UE_scheduling_control->ta_update * 3 + timing_advance) / 4;
UE_scheduling_control->pusch_snr[CC_idP] = ul_cqi;
UE_scheduling_control->ul_consecutive_errors = 0;
first_rb = UE_template_ptr->first_rb_ul[harq_pid];
if (UE_scheduling_control->ul_out_of_sync > 0) {
UE_scheduling_control->ul_out_of_sync = 0;
mac_eNB_rrc_ul_in_sync(enb_mod_idP, CC_idP, frameP, subframeP, current_rnti);
}
/* Update bytes to schedule */
UE_template_ptr->scheduled_ul_bytes -= UE_template_ptr->TBS_UL[harq_pid];
if (UE_template_ptr->scheduled_ul_bytes < 0) {
UE_template_ptr->scheduled_ul_bytes = 0;
}
} else { // sduP == NULL => error
LOG_W(MAC, "[eNB %d][PUSCH %d] CC_id %d %d.%d ULSCH in error in round %d, ul_cqi %d, UE_id %d, RNTI %x\n",
enb_mod_idP,
harq_pid,
CC_idP,
frameP,
subframeP,
UE_scheduling_control->round_UL[CC_idP][harq_pid],
ul_cqi,
UE_id,
current_rnti);
if (ul_cqi > 200) { // too high energy pattern
UE_scheduling_control->pusch_snr[CC_idP] = ul_cqi;
LOG_W(MAC, "[MAC] Too high energy pattern\n");
}
if (UE_scheduling_control->round_UL[CC_idP][harq_pid] == 3) {
UE_scheduling_control->ul_scheduled &= (~(1 << harq_pid));
UE_scheduling_control->round_UL[CC_idP][harq_pid] = 0;
if (UE_scheduling_control->ul_consecutive_errors++ == 10) {
UE_scheduling_control->ul_failure_timer = 1;
}
/* Update scheduled bytes */
UE_template_ptr->scheduled_ul_bytes -= UE_template_ptr->TBS_UL[harq_pid];
if (UE_template_ptr->scheduled_ul_bytes < 0) {
UE_template_ptr->scheduled_ul_bytes = 0;
}
if (find_RA_id(enb_mod_idP, CC_idP, current_rnti) != -1) {
cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti);
}
} else {
UE_scheduling_control->round_UL[CC_idP][harq_pid]++;
}
/* CDRX UL HARQ timers */
if (UE_scheduling_control->cdrx_configured == TRUE) {
/* Synchronous UL HARQ */
UE_scheduling_control->ul_synchronous_harq_timer[CC_idP][harq_pid] = 5;
/*
* The NACK is programmed in n+4 subframes, so UE will have drxRetransmission running.
* Setting ul_synchronous_harq_timer = 5 will trigger drxRetransmission timer.
* Note: in case of asynchronous UL HARQ process restart here relevant RTT timer.
* Start corresponding CDRX ULRetransmission timer.
*/
}
first_rb = UE_template_ptr->first_rb_ul[harq_pid];
/* Program NACK for PHICH */
LOG_D(MAC, "Programming PHICH NACK for rnti %x harq_pid %d (first_rb %d)\n",
current_rnti,
harq_pid,
first_rb);
nfapi_hi_dci0_request_t *hi_dci0_req = NULL;
uint8_t sf_ahead_dl = ul_subframe2_k_phich(&mac->common_channels[CC_idP], subframeP);
hi_dci0_req = &mac->HI_DCI0_req[CC_idP][(subframeP + sf_ahead_dl) % 10];
nfapi_hi_dci0_request_body_t *hi_dci0_req_body = &hi_dci0_req->hi_dci0_request_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = &hi_dci0_req_body->hi_dci0_pdu_list[hi_dci0_req_body->number_of_dci + hi_dci0_req_body->number_of_hi];
memset((void *) hi_dci0_pdu, 0, sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2 + sizeof(nfapi_hi_dci0_hi_pdu);
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_HI_PDU_REL8_TAG;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = first_rb;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = 0;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 0;
hi_dci0_req_body->number_of_hi++;
hi_dci0_req_body->sfnsf = sfnsf_add_subframe(frameP, subframeP, 0);
hi_dci0_req_body->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
hi_dci0_req->sfn_sf = sfnsf_add_subframe(frameP, subframeP, sf_ahead_dl);
hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
return;
}
// if UE_id == -1
} else if ((RA_id = find_RA_id(enb_mod_idP, CC_idP, current_rnti)) != -1) { // Check if this is an RA process for the rnti
RA_t *ra = (RA_t *) &(mac->common_channels[CC_idP].ra[RA_id]);
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
if (ra->rach_resource_type > 0) {
harq_pid = 0;
}
#endif
AssertFatal(mac->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx > 1,
"maxHARQ %d should be greater than 1\n",
(int) mac->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx);
LOG_D(MAC, "[eNB %d][PUSCH %d] CC_id %d [RAPROC Msg3] Received ULSCH sdu round %d from PHY (rnti %x, RA_id %d) ul_cqi %d\n",
enb_mod_idP,
harq_pid,
CC_idP,
ra->msg3_round,
current_rnti,
RA_id,
ul_cqi);
first_rb = ra->msg3_first_rb;
if (sduP == NULL) { // we've got an error on Msg3
LOG_D(MAC, "[eNB %d] CC_id %d, RA %d ULSCH in error in round %d/%d\n",
enb_mod_idP,
CC_idP,
RA_id,
ra->msg3_round,
(int) mac->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx);
if (ra->msg3_round >= mac->common_channels[CC_idP].radioResourceConfigCommon->rach_ConfigCommon.maxHARQ_Msg3Tx - 1) {
cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti);
} else {
// first_rb = UE_template_ptr->first_rb_ul[harq_pid]; // UE_id = -1 !!!!
ra->msg3_round++;
/* Prepare handling of retransmission */
get_Msg3allocret(&mac->common_channels[CC_idP],
ra->Msg3_subframe,
ra->Msg3_frame,
&ra->Msg3_frame,
&ra->Msg3_subframe);
// prepare handling of retransmission
add_msg3(enb_mod_idP, CC_idP, ra, frameP, subframeP);
}
/* TODO: program NACK for PHICH? */
return;
}
} else {
LOG_W(MAC, "Cannot find UE or RA corresponding to ULSCH rnti %x, dropping it\n", current_rnti);
return;
}
payload_ptr = parse_ulsch_header(sduP, &num_ce, &num_sdu, rx_ces, rx_lcids, rx_lengths, sdu_lenP);
if (payload_ptr == NULL) {
LOG_E(MAC,"[eNB %d][PUSCH %d] CC_id %d ulsch header unknown lcid(rnti %x, UE_id %d)\n",
enb_mod_idP,
harq_pid,
CC_idP,
current_rnti,
UE_id);
return;
}
T(T_ENB_MAC_UE_UL_PDU,
T_INT(enb_mod_idP),
T_INT(CC_idP),
T_INT(current_rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(sdu_lenP),
T_INT(num_ce),
T_INT(num_sdu));
T(T_ENB_MAC_UE_UL_PDU_WITH_DATA,
T_INT(enb_mod_idP),
T_INT(CC_idP),
T_INT(current_rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(sdu_lenP),
T_INT(num_ce),
T_INT(num_sdu),
T_BUFFER(sduP, sdu_lenP));
mac->eNB_stats[CC_idP].ulsch_bytes_rx = sdu_lenP;
mac->eNB_stats[CC_idP].total_ulsch_bytes_rx += sdu_lenP;
mac->eNB_stats[CC_idP].total_ulsch_pdus_rx += 1;
if (UE_id != -1) {
UE_scheduling_control->round_UL[CC_idP][harq_pid] = 0;
}
/* Control element */
for (int i = 0; i < num_ce; i++) {
T(T_ENB_MAC_UE_UL_CE,
T_INT(enb_mod_idP),
T_INT(CC_idP),
T_INT(current_rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(rx_ces[i]));
switch (rx_ces[i]) { // implement and process PHR + CRNTI + BSR
case POWER_HEADROOM:
if (UE_id != -1) {
UE_template_ptr->phr_info = (payload_ptr[0] & 0x3f) - PHR_MAPPING_OFFSET + (int8_t)(hundred_times_log10_NPRB[UE_template_ptr->nb_rb_ul[harq_pid] - 1] / 100);
if (UE_template_ptr->phr_info > 40) {
UE_template_ptr->phr_info = 40;
}
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received PHR PH = %d (db)\n",
enb_mod_idP,
CC_idP,
rx_ces[i],
UE_template_ptr->phr_info);
UE_template_ptr->phr_info_configured = 1;
UE_scheduling_control->phr_received = 1;
}
payload_ptr += sizeof(POWER_HEADROOM_CMD);
break;
case CRNTI:
old_rnti = (((uint16_t) payload_ptr[0]) << 8) + payload_ptr[1];
old_UE_id = find_UE_id(enb_mod_idP, old_rnti);
LOG_D(MAC, "[eNB %d] Frame %d, Subframe %d CC_id %d MAC CE_LCID %d (ce %d/%d): CRNTI %x (UE_id %d) in Msg3\n",
enb_mod_idP,
frameP,
subframeP,
CC_idP,
rx_ces[i],
i,
num_ce,
old_rnti,
old_UE_id);
/* Receiving CRNTI means that the current rnti has to go away */
if (old_UE_id != -1) {
if (mac_eNB_get_rrc_status(enb_mod_idP,old_rnti) == RRC_HO_EXECUTION) {
LOG_I(MAC, "[eNB %d] Frame %d, Subframe %d CC_id %d : (rnti %x UE_id %d) Handover case\n",
enb_mod_idP,
frameP,
subframeP,
CC_idP,
old_rnti,
old_UE_id);
UE_id = old_UE_id;
current_rnti = old_rnti;
/* Clear timer */
UE_scheduling_control = &(UE_list->UE_sched_ctrl[UE_id]);
UE_template_ptr = &(UE_list->UE_template[CC_idP][UE_id]);
UE_scheduling_control->uplane_inactivity_timer = 0;
UE_scheduling_control->ul_inactivity_timer = 0;
UE_scheduling_control->ul_failure_timer = 0;
if (UE_scheduling_control->ul_out_of_sync > 0) {
UE_scheduling_control->ul_out_of_sync = 0;
mac_eNB_rrc_ul_in_sync(enb_mod_idP,
CC_idP,
frameP,
subframeP,
old_rnti);
}
UE_template_ptr->ul_SR = 1;
UE_scheduling_control->crnti_reconfigurationcomplete_flag = 1;
UE_list->UE_template[UE_PCCID(enb_mod_idP, UE_id)][UE_id].configured = 1;
cancel_ra_proc(enb_mod_idP,
CC_idP,
frameP,
current_rnti);
} else {
/* TODO: if the UE did random access (followed by a MAC uplink with
* CRNTI) because none of its scheduling request was granted, then
* according to 36.321 5.4.4 the UE's MAC will notify RRC to release
* PUCCH/SRS. According to 36.331 5.3.13 the UE will then apply
* default configuration for CQI reporting and scheduling requests,
* which basically means that the CQI requests won't work anymore and
* that the UE won't do any scheduling request anymore as long as the
* eNB doesn't reconfigure the UE.
* We have to take care of this. As the code is, nothing is done and
* the UE state in the eNB is wrong.
*/
RA_id = find_RA_id(enb_mod_idP, CC_idP, current_rnti);
if (RA_id != -1) {
RA_t *ra = &(mac->common_channels[CC_idP].ra[RA_id]);
mac_rrc_data_ind(enb_mod_idP,
CC_idP,
frameP, subframeP,
UE_id,
old_rnti,
DCCH,
(uint8_t *) payload_ptr,
rx_lengths[i],
0
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,ra->rach_resource_type > 0
#endif
);
/* Received a new rnti */
ra->state = MSGCRNTI;
LOG_I(MAC, "[eNB %d] Frame %d, Subframe %d CC_id %d : (rnti %x UE_id %d) Received rnti(Msg4)\n",
enb_mod_idP,
frameP,
subframeP,
CC_idP,
old_rnti,
old_UE_id);
UE_id = old_UE_id;
current_rnti = old_rnti;
ra->rnti = old_rnti;
ra->crnti_rrc_mui = rrc_eNB_mui-1;
ra->crnti_harq_pid = -1;
/* Clear timer */
UE_scheduling_control = &(UE_list->UE_sched_ctrl[UE_id]);
UE_template_ptr = &(UE_list->UE_template[CC_idP][UE_id]);
UE_scheduling_control->uplane_inactivity_timer = 0;
UE_scheduling_control->ul_inactivity_timer = 0;
UE_scheduling_control->ul_failure_timer = 0;
if (UE_scheduling_control->ul_out_of_sync > 0) {
UE_scheduling_control->ul_out_of_sync = 0;
mac_eNB_rrc_ul_in_sync(enb_mod_idP, CC_idP, frameP, subframeP, old_rnti);
}
UE_template_ptr->ul_SR = 1;
UE_scheduling_control->crnti_reconfigurationcomplete_flag = 1;
// break;
}
}
} else {
cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti);
LOG_W(MAC, "[MAC] Can't find old UE_id\n");
}
crnti_rx = 1;
payload_ptr += 2; // sizeof(CRNTI)
break;
case TRUNCATED_BSR:
case SHORT_BSR:
lcgid = (payload_ptr[0] >> 6);
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : Received short BSR LCGID = %u bsr = %d\n",
enb_mod_idP,
CC_idP,
rx_ces[i],
lcgid,
payload_ptr[0] & 0x3f);
if (UE_id != -1) {
int bsr = 0;
bsr = payload_ptr[0] & 0x3f;
lcgid_updated[lcgid] = 1;
/* Update buffer info */
UE_template_ptr->ul_buffer_info[lcgid] = BSR_TABLE[bsr];
UE_template_ptr->estimated_ul_buffer =
UE_template_ptr->ul_buffer_info[LCGID0] +
UE_template_ptr->ul_buffer_info[LCGID1] +
UE_template_ptr->ul_buffer_info[LCGID2] +
UE_template_ptr->ul_buffer_info[LCGID3];
RC.eNB[enb_mod_idP][CC_idP]->pusch_stats_bsr[UE_id][(frameP * 10) + subframeP] = (payload_ptr[0] & 0x3f);
if (UE_id == UE_list->head) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BSR, (payload_ptr[0] & 0x3f));
}
if (UE_template_ptr->ul_buffer_creation_time[lcgid] == 0) {
UE_template_ptr->ul_buffer_creation_time[lcgid] = frameP;
}
if (mac_eNB_get_rrc_status(enb_mod_idP,UE_RNTI(enb_mod_idP, UE_id)) < RRC_CONNECTED) {
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d : estimated_ul_buffer = %d (lcg increment %d)\n",
enb_mod_idP,
CC_idP,
rx_ces[i],
UE_template_ptr->estimated_ul_buffer,
UE_template_ptr->ul_buffer_info[lcgid]);
}
} else {
/* Need error message */
}
payload_ptr += 1; // sizeof(SHORT_BSR)
break;
case LONG_BSR:
if (UE_id != -1) {
int bsr0 = (payload_ptr[0] & 0xFC) >> 2;
int bsr1 = ((payload_ptr[0] & 0x03) << 4) | ((payload_ptr[1] & 0xF0) >> 4);
int bsr2 = ((payload_ptr[1] & 0x0F) << 2) | ((payload_ptr[2] & 0xC0) >> 6);
int bsr3 = payload_ptr[2] & 0x3F;
lcgid_updated[LCGID0] = 1;
lcgid_updated[LCGID1] = 1;
lcgid_updated[LCGID2] = 1;
lcgid_updated[LCGID3] = 1;
/* Update buffer info */
UE_template_ptr->ul_buffer_info[LCGID0] = BSR_TABLE[bsr0];
UE_template_ptr->ul_buffer_info[LCGID1] = BSR_TABLE[bsr1];
UE_template_ptr->ul_buffer_info[LCGID2] = BSR_TABLE[bsr2];
UE_template_ptr->ul_buffer_info[LCGID3] = BSR_TABLE[bsr3];
UE_template_ptr->estimated_ul_buffer =
UE_template_ptr->ul_buffer_info[LCGID0] +
UE_template_ptr->ul_buffer_info[LCGID1] +
UE_template_ptr->ul_buffer_info[LCGID2] +
UE_template_ptr->ul_buffer_info[LCGID3];
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received long BSR. Size is LCGID0 = %u LCGID1 = %u LCGID2 = %u LCGID3 = %u\n",
enb_mod_idP,
CC_idP,
rx_ces[i],
UE_template_ptr->ul_buffer_info[LCGID0],
UE_template_ptr->ul_buffer_info[LCGID1],
UE_template_ptr->ul_buffer_info[LCGID2],
UE_template_ptr->ul_buffer_info[LCGID3]);
if (crnti_rx == 1) {
LOG_D(MAC, "[eNB %d] CC_id %d MAC CE_LCID %d: Received CRNTI.\n",
enb_mod_idP,
CC_idP,
rx_ces[i]);
}
for(int lcgid = 0; lcgid <= LCGID3; lcgid++) {
if (UE_template_ptr->ul_buffer_info[lcgid] == 0) {
UE_template_ptr->ul_buffer_creation_time[lcgid] = 0;
} else if (UE_template_ptr->ul_buffer_creation_time[lcgid] == 0) {
UE_template_ptr->ul_buffer_creation_time[lcgid] = frameP;
}
}
}
payload_ptr += 3; // sizeof(LONG_BSR)
break;
default:
LOG_E(MAC, "[eNB %d] CC_id %d Received unknown MAC header (0x%02x)\n",
enb_mod_idP,
CC_idP,
rx_ces[i]);
break;
} // end switch on control element
} // end for loop on control element
for (int i = 0; i < num_sdu; i++) {
LOG_D(MAC, "SDU Number %d MAC Subheader SDU_LCID %d, length %d\n",
i,
rx_lcids[i],
rx_lengths[i]);
T(T_ENB_MAC_UE_UL_SDU,
T_INT(enb_mod_idP),
T_INT(CC_idP),
T_INT(current_rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(rx_lcids[i]),
T_INT(rx_lengths[i]));
T(T_ENB_MAC_UE_UL_SDU_WITH_DATA,
T_INT(enb_mod_idP),
T_INT(CC_idP),
T_INT(current_rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(rx_lcids[i]),
T_INT(rx_lengths[i]),
T_BUFFER(payload_ptr, rx_lengths[i]));
switch (rx_lcids[i]) {
case CCCH:
if (rx_lengths[i] > CCCH_PAYLOAD_SIZE_MAX) {
LOG_E(MAC, "[eNB %d/%d] frame %d received CCCH of size %d (too big, maximum allowed is %d, sdu_len %d), dropping packet\n",
enb_mod_idP,
CC_idP,
frameP,
rx_lengths[i],
CCCH_PAYLOAD_SIZE_MAX,
sdu_lenP);
break;
}
LOG_D(MAC, "[eNB %d][RAPROC] CC_id %d Frame %d, Received CCCH: %x.%x.%x.%x.%x.%x, Terminating RA procedure for UE rnti %x\n",
enb_mod_idP,
CC_idP,
frameP,
payload_ptr[0], payload_ptr[1], payload_ptr[2], payload_ptr[3], payload_ptr[4], payload_ptr[5],
current_rnti);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_TERMINATE_RA_PROC, 1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_TERMINATE_RA_PROC, 0);
RA_id = find_RA_id(enb_mod_idP, CC_idP, current_rnti);
if (RA_id != -1) {
RA_t *ra = &(mac->common_channels[CC_idP].ra[RA_id]);
LOG_D(MAC, "[mac %d][RAPROC] CC_id %d Checking proc %d : rnti (%x, %x), state %d\n",
enb_mod_idP,
CC_idP,
RA_id,
ra->rnti,
current_rnti,
ra->state);
if (UE_id < 0) {
memcpy(&(ra->cont_res_id[0]), payload_ptr, 6);
LOG_D(MAC, "[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3: length %d, offset %ld\n",
enb_mod_idP,
CC_idP,
frameP,
rx_lengths[i],
payload_ptr - sduP);
if ((UE_id = add_new_ue(enb_mod_idP, CC_idP, ra->rnti, harq_pid
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
, ra->rach_resource_type
#endif
)) == -1) {
LOG_E(MAC,"[MAC][eNB] Max user count reached\n");
cancel_ra_proc(enb_mod_idP, CC_idP, frameP, current_rnti); // send Connection Reject ???
break;
// kill RA proc
} else {
LOG_D(MAC, "[eNB %d][RAPROC] CC_id %d Frame %d Added user with rnti %x => UE %d\n",
enb_mod_idP,
CC_idP,
frameP,
ra->rnti,
UE_id);
UE_scheduling_control = &(UE_list->UE_sched_ctrl[UE_id]);
UE_template_ptr = &(UE_list->UE_template[CC_idP][UE_id]);
}
} else {
LOG_D(MAC, "[eNB %d][RAPROC] CC_id %d Frame %d CCCH: Received Msg3 from already registered UE %d: length %d, offset %ld\n",
enb_mod_idP,
CC_idP,
frameP,
UE_id,
rx_lengths[i],
payload_ptr - sduP);
// kill RA proc
}
mac_rrc_data_ind(enb_mod_idP,
CC_idP,
frameP, subframeP,
UE_id,
current_rnti,
CCCH,
(uint8_t *) payload_ptr,
rx_lengths[i],
0
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
,ra->rach_resource_type > 0
#endif
);
if (num_ce > 0) { // handle msg3 which is not RRCConnectionRequest
// process_ra_message(msg3,num_ce,rx_lcids,rx_ces);
}
// prepare transmission of Msg4
ra->state = MSG4;
if(mac->common_channels[CC_idP].tdd_Config != NULL) {
switch(mac->common_channels[CC_idP].tdd_Config->subframeAssignment) {
case 1:
ra->Msg4_frame = frameP + ((subframeP > 2) ? 1 : 0);
ra->Msg4_subframe = (subframeP + 7) % 10;
break;
default:
printf("%s:%d: TODO\n", __FILE__, __LINE__);
abort();
// TODO need to be complete for other tdd configs.
}
} else {
/* Program Msg4 PDCCH+DLSCH/MPDCCH transmission 4 subframes from now,
* Check if this is ok for BL/CE, or if the rule is different
*/
ra->Msg4_frame = frameP + ((subframeP > 5) ? 1 : 0);
ra->Msg4_subframe = (subframeP + 4) % 10;
}
UE_scheduling_control->crnti_reconfigurationcomplete_flag = 0;
} // if RA process is active
break;
case DCCH:
case DCCH1:
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC, "offset: %d\n", (unsigned char) ((unsigned char *) payload_ptr - sduP));
for (int j = 0; j < 32; j++) {
LOG_T(MAC, "%x ", payload_ptr[j]);
}
LOG_T(MAC, "\n");
#endif
if (UE_id != -1) {
if (lcgid_updated[UE_template_ptr->lcgidmap[rx_lcids[i]]] == 0) {
/* Adjust buffer occupancy of the correponding logical channel group */
if (UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] >= rx_lengths[i])
UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] -= rx_lengths[i];
else
UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] = 0;
UE_template_ptr->estimated_ul_buffer =
UE_template_ptr->ul_buffer_info[0] +
UE_template_ptr->ul_buffer_info[1] +
UE_template_ptr->ul_buffer_info[2] +
UE_template_ptr->ul_buffer_info[3];
//UE_template_ptr->estimated_ul_buffer += UE_template_ptr->estimated_ul_buffer / 4;
}
LOG_D(MAC,
"[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DCCH, received %d bytes form UE %d on LCID %d \n",
enb_mod_idP, CC_idP, frameP, rx_lengths[i], UE_id,
rx_lcids[i]);
mac_rlc_data_ind(enb_mod_idP, current_rnti, enb_mod_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, rx_lcids[i], (char *) payload_ptr, rx_lengths[i], 1, NULL); //(unsigned int*)crc_status);
UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]] += 1;
UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]] += rx_lengths[i];
}
break;
// all the DRBS
case DTCH:
default:
#if defined(ENABLE_MAC_PAYLOAD_DEBUG)
LOG_T(MAC, "offset: %d\n",
(unsigned char) ((unsigned char *) payload_ptr - sduP));
for (int j = 0; j < 32; j++) {
LOG_T(MAC, "%x ", payload_ptr[j]);
}
LOG_T(MAC, "\n");
#endif
if (rx_lcids[i] < NB_RB_MAX) {
LOG_D(MAC, "[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DTCH, received %d bytes from UE %d for lcid %d\n",
enb_mod_idP,
CC_idP,
frameP,
rx_lengths[i],
UE_id,
rx_lcids[i]);
if (UE_id != -1) {
/* Adjust buffer occupancy of the correponding logical channel group */
LOG_D(MAC, "[eNB %d] CC_id %d Frame %d : ULSCH -> UL-DTCH, received %d bytes from UE %d for lcid %d, removing from LCGID %ld, %d\n",
enb_mod_idP,
CC_idP,
frameP,
rx_lengths[i],
UE_id,
rx_lcids[i],
UE_template_ptr->lcgidmap[rx_lcids[i]],
UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]]);
if (lcgid_updated[UE_template_ptr->lcgidmap[rx_lcids[i]]] == 0) {
if (UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] >= rx_lengths[i]) {
UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] -= rx_lengths[i];
} else {
UE_template_ptr->ul_buffer_info[UE_template_ptr->lcgidmap[rx_lcids[i]]] = 0;
}
UE_template_ptr->estimated_ul_buffer =
UE_template_ptr->ul_buffer_info[0] +
UE_template_ptr->ul_buffer_info[1] +
UE_template_ptr->ul_buffer_info[2] +
UE_template_ptr->ul_buffer_info[3];
}
if ((rx_lengths[i] < SCH_PAYLOAD_SIZE_MAX) && (rx_lengths[i] > 0)) { // MAX SIZE OF transport block
mac_rlc_data_ind(enb_mod_idP, current_rnti, enb_mod_idP, frameP, ENB_FLAG_YES, MBMS_FLAG_NO, rx_lcids[i], (char *) payload_ptr, rx_lengths[i], 1, NULL);
UE_list->eNB_UE_stats[CC_idP][UE_id].num_pdu_rx[rx_lcids[i]] += 1;
UE_list->eNB_UE_stats[CC_idP][UE_id].num_bytes_rx[rx_lcids[i]] += rx_lengths[i];
/* Clear uplane_inactivity_timer */
UE_scheduling_control->uplane_inactivity_timer = 0;
/* Reset RRC inactivity timer after uplane activity */
ue_contextP = rrc_eNB_get_ue_context(RC.rrc[enb_mod_idP], current_rnti);
if (ue_contextP != NULL) {
ue_contextP->ue_context.ue_rrc_inactivity_timer = 1;
} else {
LOG_E(MAC, "[eNB %d] CC_id %d Couldn't find the context associated to UE (RNTI %d) and reset RRC inactivity timer\n",
enb_mod_idP,
CC_idP,
current_rnti);
}
} else { /* rx_length[i] Max size */
UE_list->eNB_UE_stats[CC_idP][UE_id].num_errors_rx += 1;
LOG_E(MAC, "[eNB %d] CC_id %d Frame %d : Max size of transport block reached LCID %d from UE %d ",
enb_mod_idP,
CC_idP,
frameP,
rx_lcids[i],
UE_id);
}
} else { // end if (UE_id != -1)
LOG_E(MAC,"[eNB %d] CC_id %d Frame %d : received unsupported or unknown LCID %d from UE %d ",
enb_mod_idP,
CC_idP,
frameP,
rx_lcids[i],
UE_id);
}
}
break;
}
payload_ptr += rx_lengths[i];
}
/* CDRX UL HARQ timers */
if (UE_id != -1) {
if (UE_scheduling_control->cdrx_configured == TRUE) {
/* Synchronous UL HARQ */
UE_scheduling_control->ul_synchronous_harq_timer[CC_idP][harq_pid] = 5;
/*
* The ACK is programmed in n+4 subframes, so UE will have drxRetransmission running.
* Setting ul_synchronous_harq_timer = 5 will trigger drxRetransmission timer.
* Note: in case of asynchronous UL HARQ process restart here relevant RTT timer
* Stop corresponding CDRX ULRetransmission timer
*/
}
}
/* Program ACK for PHICH */
LOG_D(MAC, "Programming PHICH ACK for rnti %x harq_pid %d (first_rb %d)\n",
current_rnti,
harq_pid,
first_rb);
nfapi_hi_dci0_request_t *hi_dci0_req;
uint8_t sf_ahead_dl = ul_subframe2_k_phich(&mac->common_channels[CC_idP], subframeP);
hi_dci0_req = &mac->HI_DCI0_req[CC_idP][(subframeP+sf_ahead_dl)%10];
nfapi_hi_dci0_request_body_t *hi_dci0_req_body = &hi_dci0_req->hi_dci0_request_body;
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = &hi_dci0_req_body->hi_dci0_pdu_list[hi_dci0_req_body->number_of_dci +
hi_dci0_req_body->number_of_hi];
memset((void *) hi_dci0_pdu, 0, sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_HI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2 + sizeof(nfapi_hi_dci0_hi_pdu);
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_HI_PDU_REL8_TAG;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.resource_block_start = first_rb;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.cyclic_shift_2_for_drms = 0;
hi_dci0_pdu->hi_pdu.hi_pdu_rel8.hi_value = 1;
hi_dci0_req_body->number_of_hi++;
hi_dci0_req_body->sfnsf = sfnsf_add_subframe(frameP,subframeP, 0);
hi_dci0_req_body->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
hi_dci0_req->sfn_sf = sfnsf_add_subframe(frameP,subframeP, sf_ahead_dl);
hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
/* NN--> FK: we could either check the payload, or use a phy helper to detect a false msg3 */
if ((num_sdu == 0) && (num_ce == 0)) {
if (UE_id != -1)
UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_errors_rx += 1;
} else {
if (UE_id != -1) {
UE_list->eNB_UE_stats[CC_idP][UE_id].pdu_bytes_rx = sdu_lenP;
UE_list->eNB_UE_stats[CC_idP][UE_id].total_pdu_bytes_rx += sdu_lenP;
UE_list->eNB_UE_stats[CC_idP][UE_id].total_num_pdus_rx += 1;
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_SDU, 0);
stop_meas(&mac->rx_ulsch_sdu);
}
//-----------------------------------------------------------------------------
/*
* Return the BSR table index corresponding to the number of bytes in input
*/
uint32_t
bytes_to_bsr_index(int32_t nbytes)
//-----------------------------------------------------------------------------
{
uint32_t i = 0;
if (nbytes < 0) {
return (0);
}
while ((i < BSR_TABLE_SIZE) && (BSR_TABLE[i] <= nbytes)) {
i++;
}
return (i - 1);
}
//-----------------------------------------------------------------------------
/*
* Add ue info in eNB_ulsch_info[module_idP][CC_id][UE_id] struct
*/
void
add_ue_ulsch_info(module_id_t module_idP,
int CC_id,
int UE_id,
sub_frame_t subframeP,
UE_ULSCH_STATUS status)
//-----------------------------------------------------------------------------
{
eNB_ulsch_info[module_idP][CC_id][UE_id].rnti = UE_RNTI(module_idP, UE_id);
eNB_ulsch_info[module_idP][CC_id][UE_id].subframe = subframeP;
eNB_ulsch_info[module_idP][CC_id][UE_id].status = status;
eNB_ulsch_info[module_idP][CC_id][UE_id].serving_num++;
}
//-----------------------------------------------------------------------------
/*
* Parse MAC header from ULSCH
*/
unsigned char *
parse_ulsch_header(unsigned char *mac_header,
unsigned char *num_ce,
unsigned char *num_sdu,
unsigned char *rx_ces,
unsigned char *rx_lcids,
unsigned short *rx_lengths,
unsigned short tb_length)
//-----------------------------------------------------------------------------
{
unsigned char not_done = 1;
unsigned char num_ces = 0;
unsigned char num_sdus = 0;
unsigned char lcid = 0;
unsigned char num_sdu_cnt = 0;
unsigned char *mac_header_ptr = NULL;
unsigned short length, ce_len = 0;
/* Init */
mac_header_ptr = mac_header;
while (not_done == 1) {
if (((SCH_SUBHEADER_FIXED *) mac_header_ptr)->E == 0) {
not_done = 0;
}
lcid = ((SCH_SUBHEADER_FIXED *) mac_header_ptr)->LCID;
if (lcid < EXTENDED_POWER_HEADROOM) {
if (not_done == 0) { // last MAC SDU, length is implicit
mac_header_ptr++;
length = tb_length - (mac_header_ptr - mac_header) - ce_len;
for (num_sdu_cnt = 0; num_sdu_cnt < num_sdus; num_sdu_cnt++) {
length -= rx_lengths[num_sdu_cnt];
}
} else {
if (((SCH_SUBHEADER_SHORT *) mac_header_ptr)->F == 0) {
length = ((SCH_SUBHEADER_SHORT *) mac_header_ptr)->L;
mac_header_ptr += 2; //sizeof(SCH_SUBHEADER_SHORT);
} else { // F = 1
length = ((((SCH_SUBHEADER_LONG *) mac_header_ptr)->L_MSB & 0x7f) << 8) |
(((SCH_SUBHEADER_LONG *) mac_header_ptr)->L_LSB & 0xff);
mac_header_ptr += 3; //sizeof(SCH_SUBHEADER_LONG);
}
}
LOG_D(MAC, "[eNB] sdu %d lcid %d tb_length %d length %d (offset now %ld)\n",
num_sdus,
lcid,
tb_length,
length,
mac_header_ptr - mac_header);
rx_lcids[num_sdus] = lcid;
rx_lengths[num_sdus] = length;
num_sdus++;
} else { // This is a control element subheader POWER_HEADROOM, BSR and CRNTI
if (lcid == SHORT_PADDING) {
mac_header_ptr++;
} else {
rx_ces[num_ces] = lcid;
num_ces++;
mac_header_ptr++;
if (lcid == LONG_BSR) {
ce_len += 3;
} else if (lcid == CRNTI) {
ce_len += 2;
} else if ((lcid == POWER_HEADROOM) || (lcid == TRUNCATED_BSR) || (lcid == SHORT_BSR)) {
ce_len++;
} else {
LOG_E(MAC, "unknown CE %d \n", lcid);
return NULL;
}
}
}
}
*num_ce = num_ces;
*num_sdu = num_sdus;
return (mac_header_ptr);
}
//-----------------------------------------------------------------------------
/* This function is called by PHY layer when it schedules some
* uplink for a random access message 3.
* The MAC scheduler has to skip the RBs used by this message 3
* (done below in schedule_ulsch).
* This function seems to be unused, the Msg3_subframe is set somewhere else...
* In NFAPI??
*/
void
set_msg3_subframe(module_id_t mod_id,
int CC_id,
int frame, // Not used, remove?
int subframe, // Not used, remove?
int rnti,
int Msg3_frame, // Not used, remove?
int Msg3_subframe)
//-----------------------------------------------------------------------------
{
int RA_id = 0;
/* Init */
RA_id = find_RA_id(mod_id, CC_id, rnti); // state == WAITMSG3 instead of state != IDLE (?)
if (RA_id != -1) {
RC.mac[mod_id]->common_channels[CC_id].ra[RA_id].Msg3_subframe = Msg3_subframe;
} else {
LOG_E(MAC, "[MAC] Unknown RAPROC associated to RNTI %x\n", rnti);
}
return;
}
//-----------------------------------------------------------------------------
/*
* Main function called for uplink scheduling (DCI0).
*/
void
schedule_ulsch(module_id_t module_idP,
frame_t frameP,
sub_frame_t subframeP)
//-----------------------------------------------------------------------------
{
uint16_t first_rb[NFAPI_CC_MAX];
eNB_MAC_INST *mac = NULL;
slice_info_t *sli = NULL;
COMMON_channels_t *cc = NULL;
int sched_subframe;
int sched_frame;
/* Init */
mac = RC.mac[module_idP];
sli = &(mac->slice_info);
memset(first_rb, 0, NFAPI_CC_MAX * sizeof(uint16_t));
start_meas(&(mac->schedule_ulsch));
sched_subframe = (subframeP + 4) % 10;
sched_frame = frameP;
cc = mac->common_channels;
/* For TDD: check subframes where we have to act and return if nothing should be done now */
if (cc->tdd_Config) { // Done only for CC_id = 0, assume tdd_Config for all CC_id
int tdd_sfa = cc->tdd_Config->subframeAssignment;
switch (subframeP) {
case 0:
if ((tdd_sfa == 0) || (tdd_sfa == 3))
sched_subframe = 4;
else if (tdd_sfa == 6)
sched_subframe = 7;
else
return;
break;
case 1:
if ((tdd_sfa == 0) || (tdd_sfa == 1))
sched_subframe = 7;
else if (tdd_sfa == 6)
sched_subframe = 8;
else
return;
break;
case 2: // Don't schedule UL in subframe 2 for TDD
return;
case 3:
if (tdd_sfa == 2)
sched_subframe = 7;
else
return;
break;
case 4:
if (tdd_sfa == 1)
sched_subframe = 8;
else
return;
break;
case 5:
if (tdd_sfa == 0)
sched_subframe = 9;
else if (tdd_sfa == 6)
sched_subframe = 2;
else
return;
break;
case 6:
if (tdd_sfa == 0 || tdd_sfa == 1)
sched_subframe = 2;
else if (tdd_sfa == 6)
sched_subframe = 3;
else
return;
break;
case 7:
return;
case 8:
if ((tdd_sfa >= 2) && (tdd_sfa <= 5))
sched_subframe = 2;
else
return;
break;
case 9:
if ((tdd_sfa == 1) || (tdd_sfa == 3) || (tdd_sfa == 4))
sched_subframe = 3;
else if (tdd_sfa == 6)
sched_subframe = 4;
else
return;
break;
default:
return;
}
}
if (sched_subframe < subframeP) {
sched_frame++;
sched_frame %= 1024;
}
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
int emtc_active[5];
memset(emtc_active, 0, 5 * sizeof(int));
schedule_ulsch_rnti_emtc(module_idP, frameP, subframeP, sched_subframe, emtc_active);
#endif
/* Note: RC.nb_mac_CC[module_idP] should be lower than or equal to NFAPI_CC_MAX */
for (int CC_id = 0; CC_id < RC.nb_mac_CC[module_idP]; CC_id++, cc++) {
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
first_rb[CC_id] = (emtc_active[CC_id] == 1) ? 7 : 1;
#else
/* Note: the size of PUCCH is arbitrary, to be done properly. */
switch (RC.eNB[module_idP][CC_id]->frame_parms.N_RB_DL) {
case 25: first_rb[CC_id] = 1; break; // leave out first RB for PUCCH
case 50: first_rb[CC_id] = 2; break; // leave out first RB for PUCCH
case 100: first_rb[CC_id] = 3; break; // leave out first RB for PUCCH
default: LOG_E(MAC, "nb RBs not handled, todo.\n"); exit(1);
}
#endif
RA_t *ra_ptr = cc->ra;
/* From Louis-Adrien to François:
* The comment bloc below is to configure with a command line.
* I took it from the equivalent part in the fairRR scheduler (around line 2578 in eNB_scheduler_fairRR.c).
* As said in the meeting, it seems to work only for small TBS.
* The cause of false RA still present with this fix is to investigate.
*
* Note: in the get_prach_prb_offset() function below, the last argument is frameP in eNB_scheduler_fairRR.c
* I think it should be sched_frame instead. This parameter has only impacts in case TDD and preamble format 4.
* To confirm.
*/
/*
int start_rb = 0;
int nb_rb = 6;
LTE_DL_FRAME_PARMS *frame_parms = &(RC.eNB[module_idP][CC_id]->frame_parms);
if (is_prach_subframe(frame_parms, sched_frame, sched_subframe) == 1) {
start_rb = get_prach_prb_offset(frame_parms,
frame_parms->prach_config_common.prach_ConfigInfo.prach_ConfigIndex,
frame_parms->prach_config_common.prach_ConfigInfo.prach_FreqOffset,
0, // tdd_mapindex
sched_frame); // Nf
first_rb[CC_id] = start_rb + nb_rb;
}
*/
/*
* Check if RA (Msg3) is active in this subframeP, if so skip the PRB used for Msg3
* Msg3 is using 1 PRB so we need to increase first_rb accordingly
* Not sure about the break (can there be more than 1 active RA procedure per CC_id and per subframe?)
*/
for (int ra_index = 0; ra_index < NB_RA_PROC_MAX; ra_index++, ra_ptr++) {
if ((ra_ptr->state == WAITMSG3) && (ra_ptr->Msg3_subframe == sched_subframe)) {
if (first_rb[CC_id] < ra_ptr->msg3_first_rb + ra_ptr->msg3_nb_rb) {
first_rb[CC_id] = ra_ptr->msg3_first_rb + ra_ptr->msg3_nb_rb;
}
/* Louis-Adrien: I couldn't find an interdiction of multiple Msg3 scheduling
* on the same time resources. Also the performance improvement of breaking is low,
* since we will loop until the end, most of the time.
* I'm letting the break as a reminder, in case of misunderstanding the spec.
*/
// break;
}
}
}
/* Run each enabled slice-specific schedulers one by one */
for (int i = 0; i < sli->n_ul; i++) {
/* By default the scheduler is schedule_ulsch_rnti (see below) */
sli->ul[i].sched_cb(module_idP, i, frameP, subframeP, sched_subframe, first_rb);
}
stop_meas(&mac->schedule_ulsch);
}
//-----------------------------------------------------------------------------
/*
* Schedule the DCI0 for ULSCH
*/
void
schedule_ulsch_rnti(module_id_t module_idP,
int slice_idx,
frame_t frameP,
sub_frame_t subframeP,
unsigned char sched_subframeP,
uint16_t *first_rb)
//-----------------------------------------------------------------------------
{
rnti_t rnti = -1;
uint8_t aggregation = 2;
uint8_t round_index = 0;
uint8_t harq_pid = 0;
uint8_t status = 0;
uint8_t rb_table_index = -1;
uint8_t dlsch_flag = 0;
uint16_t ul_req_index = 0;
uint32_t cqi_req = 0;
uint32_t cshift = 0;
uint32_t ndi = 0;
uint32_t tpc = 0;
int32_t normalized_rx_power = 0;
int32_t target_rx_power = 0;
int32_t framex10psubframe = 0;
static int32_t tpc_accumulated = 0;
int sched_frame = 0;
int CC_id = 0;
eNB_MAC_INST *mac = NULL;
COMMON_channels_t *cc = NULL;
UE_list_t *UE_list = NULL;
slice_info_t *sli = NULL;
UE_TEMPLATE *UE_template_ptr = NULL;
UE_sched_ctrl_t *UE_sched_ctrl_ptr = NULL;
int rvidx_tab[4] = {0, 2, 3, 1};
int first_rb_slice[NFAPI_CC_MAX];
int n_rb_ul_tab[NFAPI_CC_MAX];
/* Init */
mac = RC.mac[module_idP];
cc = mac->common_channels;
UE_list = &(mac->UE_list);
sli = &(mac->slice_info);
memset(first_rb_slice, 0, NFAPI_CC_MAX * sizeof(int));
memset(n_rb_ul_tab, 0, NFAPI_CC_MAX * sizeof(int));
sched_frame = frameP;
if (sched_subframeP < subframeP) {
sched_frame++;
sched_frame %= 1024;
}
/* NFAPI struct init */
nfapi_hi_dci0_request_t *hi_dci0_req = &(mac->HI_DCI0_req[CC_id][subframeP]);
nfapi_hi_dci0_request_body_t *hi_dci0_req_body = &(hi_dci0_req->hi_dci0_request_body);
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu;
nfapi_ul_config_request_t *ul_req_tmp = &(mac->UL_req_tmp[CC_id][sched_subframeP]);
nfapi_ul_config_request_body_t *ul_req_tmp_body = &(ul_req_tmp->ul_config_request_body);
nfapi_ul_config_ulsch_harq_information *ulsch_harq_information;
hi_dci0_req->sfn_sf = (frameP << 4) + subframeP;
/* Note: RC.nb_mac_CC[module_idP] should be lower than or equal to NFAPI_CC_MAX */
for (CC_id = 0; CC_id < RC.nb_mac_CC[module_idP]; CC_id++) {
n_rb_ul_tab[CC_id] = to_prb(cc[CC_id].ul_Bandwidth); // return total number of PRB
/* HACK: let's remove the PUCCH from available RBs
* we suppose PUCCH size is:
* - for 25 RBs: 1 RB (top and bottom of ressource grid)
* - for 50: 2 RBs
* - for 100: 3 RBs
* This is totally arbitrary and might even be wrong.
* We suppose 'first_rb[]' has been correctly populated by the caller,
* so we only remove the top part of the resource grid.
*/
switch (n_rb_ul_tab[CC_id]) {
case 25: n_rb_ul_tab[CC_id] -= 1; break;
case 50: n_rb_ul_tab[CC_id] -= 2; break;
case 100: n_rb_ul_tab[CC_id] -= 3; break;
default: LOG_E(MAC, "RBs setting not handled. Todo.\n"); exit(1);
}
UE_list->first_rb_offset[CC_id][slice_idx] = cmin(n_rb_ul_tab[CC_id], sli->ul[slice_idx].first_rb);
}
/*
* ULSCH preprocessor: set UE_template->
* pre_allocated_nb_rb_ul[slice_idx]
* pre_assigned_mcs_ul
* pre_allocated_rb_table_index_ul
*/
ulsch_scheduler_pre_processor(module_idP, slice_idx, frameP, subframeP, sched_frame, sched_subframeP, first_rb);
for (CC_id = 0; CC_id < RC.nb_mac_CC[module_idP]; CC_id++) {
first_rb_slice[CC_id] = first_rb[CC_id] + UE_list->first_rb_offset[CC_id][slice_idx];
}
// loop over all active UEs until end of function
for (int UE_id = UE_list->head_ul; UE_id >= 0; UE_id = UE_list->next_ul[UE_id]) {
if (!ue_ul_slice_membership(module_idP, UE_id, slice_idx)) {
continue;
}
if (UE_list->UE_template[UE_PCCID(module_idP, UE_id)][UE_id].rach_resource_type > 0) continue;
// don't schedule if Msg5 is not received yet
if (UE_list->UE_template[UE_PCCID(module_idP, UE_id)][UE_id].configured == FALSE) {
LOG_D(MAC, "[eNB %d] frame %d, subframe %d, UE %d: not configured, skipping UE scheduling \n",
module_idP,
frameP,
subframeP,
UE_id);
continue;
}
rnti = UE_RNTI(module_idP, UE_id);
if (rnti == NOT_A_RNTI) {
LOG_W(MAC, "[eNB %d] frame %d, subframe %d, UE %d: no RNTI \n",
module_idP,
frameP,
subframeP,
UE_id);
continue;
}
// loop over all active UL CC_ids for this UE until end of function
for (int n = 0; n < UE_list->numactiveULCCs[UE_id]; n++) {
/* This is the actual CC_id in the list */
CC_id = UE_list->ordered_ULCCids[n][UE_id];
UE_template_ptr = &(UE_list->UE_template[CC_id][UE_id]);
UE_sched_ctrl_ptr = &(UE_list->UE_sched_ctrl[UE_id]);
harq_pid = subframe2harqpid(&cc[CC_id], sched_frame, sched_subframeP);
round_index = UE_sched_ctrl_ptr->round_UL[CC_id][harq_pid];
AssertFatal(round_index < 8, "round %d > 7 for UE %d/%x\n",
round_index,
UE_id,
rnti);
LOG_D(MAC, "[eNB %d] frame %d subframe %d (sched_frame %d, sched_subframe %d), Checking PUSCH %d for UE %d/%x CC %d : aggregation level %d, N_RB_UL %d\n",
module_idP,
frameP,
subframeP,
sched_frame,
sched_subframeP,
harq_pid,
UE_id,
rnti,
CC_id,
aggregation,
n_rb_ul_tab[CC_id]);
/* Seems unused, only for debug */
RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP * 10) + subframeP] = UE_template_ptr->estimated_ul_buffer;
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BO, UE_template_ptr->estimated_ul_buffer);
/*
* If there is information on BSR of DCCH, DTCH or if there is UL_SR,
* or if there is a packet to retransmit, or we want to schedule a periodic feedback
*/
if (UE_is_to_be_scheduled(module_idP, CC_id, UE_id) > 0 || round_index > 0) {
LOG_D(MAC, "[eNB %d][PUSCH %d] Frame %d subframe %d Scheduling UE %d/%x in round %d(SR %d,UL_inactivity timer %d,UL_failure timer %d,cqi_req_timer %d)\n",
module_idP,
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
round_index,
UE_template_ptr->ul_SR,
UE_sched_ctrl_ptr->ul_inactivity_timer,
UE_sched_ctrl_ptr->ul_failure_timer,
UE_sched_ctrl_ptr->cqi_req_timer);
/* Reset the scheduling request */
UE_template_ptr->ul_SR = 0;
status = mac_eNB_get_rrc_status(module_idP, rnti);
/* New transmission */
if (round_index == 0) {
/* Be sure that there are some free RBs */
if (first_rb_slice[CC_id] >= n_rb_ul_tab[CC_id]) {
LOG_W(MAC, "[eNB %d] frame %d, subframe %d, UE %d/%x CC %d: dropping, not enough RBs\n",
module_idP,
frameP,
subframeP,
UE_id,
rnti,
CC_id);
continue;
}
/* Should format_flag be 2 in CCE_allocation_infeasible??? */
/* This test seems to be way too long, can we provide an optimization? */
if (CCE_allocation_infeasible(module_idP, CC_id, 1, subframeP, aggregation, rnti)) {
LOG_W(MAC, "[eNB %d] frame %d, subframe %d, UE %d/%x CC %d: not enough CCE\n",
module_idP,
frameP,
subframeP,
UE_id,
rnti,
CC_id);
continue;
}
/* Handle the aperiodic CQI report */
cqi_req = 0;
LOG_D(MAC,"RRC Conenction status %d, cqi_timer %d\n",status,UE_sched_ctrl_ptr->cqi_req_timer);
if (status >= RRC_CONNECTED && UE_sched_ctrl_ptr->cqi_req_timer > 30) {
if (UE_sched_ctrl_ptr->cqi_received == 0) {
if (NFAPI_MODE != NFAPI_MONOLITHIC) {
cqi_req = 0;
} else {
cqi_req = 1;
LOG_D(MAC,"Setting CQI_REQ (timer %d)\n",UE_sched_ctrl_ptr->cqi_req_timer);
/* TDD: to be safe, do not ask CQI in special Subframes:36.213/7.2.3 CQI definition */
if (cc[CC_id].tdd_Config) {
switch (cc[CC_id].tdd_Config->subframeAssignment) {
case 1:
if(subframeP == 1 || subframeP == 6) {
cqi_req=0;
}
break;
case 3:
if(subframeP == 1) {
cqi_req=0;
}
break;
default:
LOG_E(MAC," TDD config not supported\n");
break;
}
}
if(cqi_req == 1) {
UE_sched_ctrl_ptr->cqi_req_flag |= 1 << sched_subframeP;
}
}
} else {
LOG_D(MAC,"Clearing CQI request timer\n");
UE_sched_ctrl_ptr->cqi_req_flag = 0;
UE_sched_ctrl_ptr->cqi_received = 0;
UE_sched_ctrl_ptr->cqi_req_timer = 0;
}
}
/* Power control */
/*
* Compute the expected ULSCH RX power (for the stats)
* This is the normalized RX power and this should be constant (regardless of mcs)
* Is not in dBm, unit from nfapi, converting to dBm
* ToDo: Noise power hard coded to 30
*/
normalized_rx_power = ((5 * UE_sched_ctrl_ptr->pusch_snr[CC_id] - 640) / 10) + 30;
target_rx_power = (mac->puSch10xSnr / 10) + 30;
/*
* This assumes accumulated tpc
* Make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out
*/
framex10psubframe = (UE_template_ptr->pusch_tpc_tx_frame * 10) + UE_template_ptr->pusch_tpc_tx_subframe;
if (((framex10psubframe + 10) <= (frameP * 10 + subframeP)) || // normal case
((framex10psubframe > (frameP * 10 + subframeP)) && (((10240 - framex10psubframe + frameP * 10 + subframeP) >= 10)))) { //frame wrap-around
UE_template_ptr->pusch_tpc_tx_frame = frameP;
UE_template_ptr->pusch_tpc_tx_subframe = subframeP;
if (normalized_rx_power > (target_rx_power + 4)) {
tpc = 0; // -1
tpc_accumulated--;
} else if (normalized_rx_power < (target_rx_power - 4)) {
tpc = 2; // +1
tpc_accumulated++;
} else {
tpc = 1; // 0
}
} else {
tpc = 1; // 0
}
if (tpc != 1) {
LOG_D(MAC, "[eNB %d] ULSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, accumulated %d, normalized/target rx power %d/%d\n",
module_idP,
frameP,
subframeP,
harq_pid,
tpc,
tpc_accumulated,
normalized_rx_power,
target_rx_power);
}
ndi = 1 - UE_template_ptr->oldNDI_UL[harq_pid]; // NDI: new data indicator
UE_template_ptr->oldNDI_UL[harq_pid] = ndi;
UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power = normalized_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].target_rx_power = target_rx_power;
UE_template_ptr->mcs_UL[harq_pid] = cmin(UE_template_ptr->pre_assigned_mcs_ul, sli->ul[slice_idx].maxmcs);
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1= UE_template_ptr->mcs_UL[harq_pid];
/* CDRX */
if (UE_sched_ctrl_ptr->cdrx_configured) {
UE_sched_ctrl_ptr->drx_inactivity_timer = 1; // reset drx inactivity timer when new transmission
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DRX_INACTIVITY, (unsigned long) UE_sched_ctrl_ptr->drx_inactivity_timer);
UE_sched_ctrl_ptr->dci0_ongoing_timer = 1; // when set the UE_template_ptr->ul_SR cannot be set to 1,
// see definition for more information
}
if (UE_template_ptr->pre_allocated_rb_table_index_ul >= 0) {
rb_table_index = UE_template_ptr->pre_allocated_rb_table_index_ul;
} else {
UE_template_ptr->mcs_UL[harq_pid] = 10;
rb_table_index = 5; // for PHR
}
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2 = UE_template_ptr->mcs_UL[harq_pid];
while (((rb_table[rb_table_index] > (n_rb_ul_tab[CC_id] - first_rb_slice[CC_id])) ||
(rb_table[rb_table_index] > 45)) && (rb_table_index > 0)) {
rb_table_index--;
}
UE_template_ptr->TBS_UL[harq_pid] = get_TBS_UL(UE_template_ptr->mcs_UL[harq_pid], rb_table[rb_table_index]);
UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx += rb_table[rb_table_index];
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_TBS = UE_template_ptr->TBS_UL[harq_pid];
UE_list->eNB_UE_stats[CC_id][UE_id].total_ulsch_TBS += UE_template_ptr->TBS_UL[harq_pid];
T(T_ENB_MAC_UE_UL_SCHEDULE,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(UE_template_ptr->mcs_UL[harq_pid]),
T_INT(first_rb_slice[CC_id]),
T_INT(rb_table[rb_table_index]),
T_INT(UE_template_ptr->TBS_UL[harq_pid]),
T_INT(ndi));
/* Store information for possible retransmission */
UE_template_ptr->nb_rb_ul[harq_pid] = rb_table[rb_table_index];
UE_template_ptr->first_rb_ul[harq_pid] = first_rb_slice[CC_id];
UE_template_ptr->cqi_req[harq_pid] = cqi_req;
UE_sched_ctrl_ptr->ul_scheduled |= (1 << harq_pid);
if (UE_id == UE_list->head) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_SCHEDULED, UE_sched_ctrl_ptr->ul_scheduled);
}
/* Adjust scheduled UL bytes by TBS, wait for UL sdus to do final update */
LOG_D(MAC, "[eNB %d] CC_id %d UE %d/%x : adjusting scheduled_ul_bytes, old %d, TBS %d\n",
module_idP,
CC_id,
UE_id,
rnti,
UE_template_ptr->scheduled_ul_bytes,
UE_template_ptr->TBS_UL[harq_pid]);
UE_template_ptr->scheduled_ul_bytes += UE_template_ptr->TBS_UL[harq_pid];
LOG_D(MAC, "scheduled_ul_bytes, new %d\n",
UE_template_ptr->scheduled_ul_bytes);
/* Cyclic shift for DM-RS */
cshift = 0; // values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
/* Save it for a potential retransmission */
UE_template_ptr->cshift[harq_pid] = cshift;
/* Setting DCI0 NFAPI struct */
hi_dci0_pdu = &hi_dci0_req_body->hi_dci0_pdu_list[hi_dci0_req_body->number_of_dci + hi_dci0_req_body->number_of_hi];
memset((void *) hi_dci0_pdu, 0,sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_DCI_PDU_TYPE;
hi_dci0_pdu->pdu_size = 2 + sizeof(nfapi_hi_dci0_dci_pdu);
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tl.tag = NFAPI_HI_DCI0_REQUEST_DCI_PDU_REL8_TAG;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dci_format = NFAPI_UL_DCI_FORMAT_0;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.aggregation_level = aggregation;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.rnti = rnti;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.transmission_power = 6000;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.resource_block_start = first_rb_slice[CC_id];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.number_of_resource_block = rb_table[rb_table_index];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.mcs_1 = UE_template_ptr->mcs_UL[harq_pid];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cyclic_shift_2_for_drms = cshift;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.frequency_hopping_enabled_flag = 0;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.new_data_indication_1 = ndi;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.tpc = tpc;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.cqi_csi_request = cqi_req;
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.dl_assignment_index = UE_template_ptr->DAI_ul[sched_subframeP];
hi_dci0_pdu->dci_pdu.dci_pdu_rel8.harq_pid = harq_pid;
hi_dci0_req_body->number_of_dci++;
hi_dci0_req_body->sfnsf = sfnsf_add_subframe(sched_frame, sched_subframeP, 0);
hi_dci0_req_body->tl.tag = NFAPI_HI_DCI0_REQUEST_BODY_TAG;
hi_dci0_req->sfn_sf = frameP << 4 | subframeP;
hi_dci0_req->header.message_id = NFAPI_HI_DCI0_REQUEST;
LOG_D(MAC, "[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP);
ul_req_index = 0;
dlsch_flag = 0;
for(ul_req_index = 0; ul_req_index < ul_req_tmp_body->number_of_pdus; ul_req_index++) {
if(ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE &&
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].uci_harq_pdu.ue_information.ue_information_rel8.rnti == rnti) {
dlsch_flag = 1;
LOG_D(MAC, "Frame %d, Subframe %d:rnti %x ul_req_index %d Switched UCI HARQ to ULSCH HARQ(first)\n",
frameP,
subframeP,
rnti,
ul_req_index);
break;
}
}
/* Add UL_config PDUs */
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp_body->ul_config_pdu_list[ul_req_index],
cqi_req,
cc,
UE_template_ptr->physicalConfigDedicated,
get_tmode(module_idP, CC_id, UE_id),
mac->ul_handle,
rnti,
first_rb_slice[CC_id], // resource_block_start
rb_table[rb_table_index], // number_of_resource_blocks
UE_template_ptr->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
ndi, // new_data_indication
0, // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
get_TBS_UL(UE_template_ptr->mcs_UL[harq_pid], rb_table[rb_table_index]));
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
/* This is a BL/CE UE allocation */
if (UE_template_ptr->rach_resource_type > 0) {
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp_body->ul_config_pdu_list[ul_req_index],
UE_template_ptr->rach_resource_type > 2 ? 2 : 1,
1, // total_number_of_repetitions
1, // repetition_number
(frameP * 10) + subframeP);
}
#endif
if (dlsch_flag == 1) {
if (cqi_req == 1) {
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE;
ulsch_harq_information = &ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.harq_information;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag =
NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0; // last symbol not punctured
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks =
rb_table[rb_table_index];
} else {
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE;
ulsch_harq_information = &ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.harq_information;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag =
NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0; // last symbol not punctured
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks = rb_table[rb_table_index];
}
fill_nfapi_ulsch_harq_information(module_idP, CC_id,rnti, ulsch_harq_information,subframeP);
} else {
ul_req_tmp_body->number_of_pdus++;
}
ul_req_tmp->header.message_id = NFAPI_UL_CONFIG_REQUEST;
ul_req_tmp_body->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
mac->ul_handle++;
ul_req_tmp->sfn_sf = sched_frame << 4 | sched_subframeP;
add_ue_ulsch_info(module_idP, CC_id, UE_id, subframeP, S_UL_SCHEDULED);
LOG_D(MAC, "[eNB %d] CC_id %d Frame %d, subframeP %d: Generated ULSCH DCI for next UE_id %d, format 0\n",
module_idP,
CC_id,
frameP,
subframeP,
UE_id);
LOG_D(MAC, "[PUSCH %d] SFN/SF:%04d%d UL_CFG:SFN/SF:%04d%d CQI:%d for UE %d/%x\n",
harq_pid,
frameP,
subframeP,
sched_frame,
sched_subframeP,
cqi_req,
UE_id,
rnti);
/* Increment first rb for next UE allocation */
first_rb_slice[CC_id] += rb_table[rb_table_index];
} else { // round_index > 0 => retransmission
T(T_ENB_MAC_UE_UL_SCHEDULE_RETRANSMISSION,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(UE_template_ptr->mcs_UL[harq_pid]),
T_INT(UE_template_ptr->first_rb_ul[harq_pid]),
T_INT(UE_template_ptr->nb_rb_ul[harq_pid]),
T_INT(round_index));
/* Add UL_config PDUs */
LOG_D(MAC, "[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP);
ul_req_index = 0;
dlsch_flag = 0;
cqi_req = UE_template_ptr->cqi_req[harq_pid];
for(ul_req_index = 0; ul_req_index < ul_req_tmp_body->number_of_pdus; ul_req_index++) {
if(ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type == NFAPI_UL_CONFIG_UCI_HARQ_PDU_TYPE &&
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].uci_harq_pdu.ue_information.ue_information_rel8.rnti == rnti) {
dlsch_flag = 1;
LOG_D(MAC, "Frame %d, Subframe %d:rnti %x ul_req_index %d Switched UCI HARQ to ULSCH HARQ(first)\n",
frameP,
subframeP,
rnti,
ul_req_index);
break;
}
}
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp_body->ul_config_pdu_list[ul_req_index],
cqi_req,
cc,
UE_template_ptr->physicalConfigDedicated,
get_tmode(module_idP, CC_id, UE_id),
mac->ul_handle,
rnti,
UE_template_ptr->first_rb_ul[harq_pid], // resource_block_start
UE_template_ptr->nb_rb_ul[harq_pid], // number_of_resource_blocks
UE_template_ptr->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
UE_template_ptr->oldNDI_UL[harq_pid], // new_data_indication
rvidx_tab[round_index & 3], // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
UE_template_ptr->TBS_UL[harq_pid]);
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
/* This is a BL/CE UE allocation */
if (UE_template_ptr->rach_resource_type > 0) {
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp_body->ul_config_pdu_list[ul_req_index],
UE_template_ptr->rach_resource_type > 2 ? 2 : 1,
1, // total_number_of_repetitions
1, // repetition_number
(frameP * 10) + subframeP);
}
#endif
if(dlsch_flag == 1) {
if(cqi_req == 1) {
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_CQI_HARQ_RI_PDU_TYPE;
ulsch_harq_information = &ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.harq_information;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag=
NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0; // last symbol not punctured
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_cqi_harq_ri_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks =
UE_template_ptr->nb_rb_ul[harq_pid];
} else {
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].pdu_type = NFAPI_UL_CONFIG_ULSCH_HARQ_PDU_TYPE;
ulsch_harq_information = &ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.harq_information;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.tl.tag =
NFAPI_UL_CONFIG_REQUEST_INITIAL_TRANSMISSION_PARAMETERS_REL8_TAG;
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.n_srs_initial = 0; // last symbol not punctured
ul_req_tmp_body->ul_config_pdu_list[ul_req_index].ulsch_harq_pdu.initial_transmission_parameters.initial_transmission_parameters_rel8.initial_number_of_resource_blocks =
UE_template_ptr->nb_rb_ul[harq_pid];
}
fill_nfapi_ulsch_harq_information(module_idP, CC_id,rnti, ulsch_harq_information, subframeP);
} else {
ul_req_tmp_body->number_of_pdus++;
}
mac->ul_handle++;
ul_req_tmp_body->tl.tag = NFAPI_UL_CONFIG_REQUEST_BODY_TAG;
ul_req_tmp->sfn_sf = sched_frame<<4|sched_subframeP;
ul_req_tmp->header.message_id = NFAPI_UL_CONFIG_REQUEST;
LOG_D(MAC, "[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG.Request for UE %d/%x, ulsch_frame %d, ulsch_subframe %d cqi_req %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP,
cqi_req);
/* HACK: RBs used by retransmission have to be reserved.
* The current mechanism uses the notion of 'first_rb', so
* we skip all RBs below the ones retransmitted. This is
* not correct. Imagine only RB 23 is retransmitted, then all
* RBs < 23 will be marked unusable for new transmissions (case where round == 0).
* Note also that this code works only if the preprocessor orders
* UEs with retransmission with higher priority than UEs with new
* transmission.
* All this should be cleaned up properly.
*/
if (first_rb_slice[CC_id] < UE_template_ptr->first_rb_ul[harq_pid] + UE_template_ptr->nb_rb_ul[harq_pid])
first_rb_slice[CC_id] = UE_template_ptr->first_rb_ul[harq_pid] + UE_template_ptr->nb_rb_ul[harq_pid];
} // end of round > 0
} // UE_is_to_be_scheduled
} // loop over all active CC_ids
} // loop over UE_ids
}
#if (LTE_RRC_VERSION >= MAKE_VERSION(14, 0, 0))
//-----------------------------------------------------------------------------
/*
* default ULSCH scheduler for LTE-M
*/
void schedule_ulsch_rnti_emtc(module_id_t module_idP,
frame_t frameP,
sub_frame_t subframeP,
unsigned char sched_subframeP,
int *emtc_active)
//-----------------------------------------------------------------------------
{
int UE_id = -1;
rnti_t rnti = -1;
uint8_t round_UL = 0;
uint8_t harq_pid = 0;
uint8_t status = 0;
uint32_t cshift = 0;
uint32_t ndi = 0;
int32_t normalized_rx_power = 0;
int32_t target_rx_power = -90;
int n = 0;
int CC_id = 0;
int N_RB_UL = 0;
int sched_frame = frameP;
int rvidx_tab[4] = {0,2,3,1};
int tpc = 0;
int cqi_req = 0;
eNB_MAC_INST *eNB = RC.mac[module_idP];
COMMON_channels_t *cc = eNB->common_channels;
UE_list_t *UE_list = &(eNB->UE_list);
UE_TEMPLATE *UE_template = NULL;
UE_sched_ctrl_t *UE_sched_ctrl = NULL;
if (sched_subframeP < subframeP) {
sched_frame++;
}
nfapi_hi_dci0_request_body_t *hi_dci0_req = &(eNB->HI_DCI0_req[CC_id][subframeP].hi_dci0_request_body);
nfapi_hi_dci0_request_pdu_t *hi_dci0_pdu = NULL;
nfapi_ul_config_request_body_t *ul_req_tmp = &(eNB->UL_req_tmp[CC_id][sched_subframeP].ul_config_request_body);
/* If frameP odd don't schedule */
if ((frameP & 1) == 1) {
return;
}
/* Loop over all active UEs */
for (UE_id = UE_list->head_ul; UE_id >= 0; UE_id = UE_list->next_ul[UE_id]) {
UE_template = &(UE_list->UE_template[UE_PCCID(module_idP, UE_id)][UE_id]);
/* LTE-M device */
if (UE_template->rach_resource_type == 0) {
continue;
}
/* Don't schedule if Msg4 is not received yet */
if (UE_template->configured == FALSE) {
LOG_D(MAC,"[eNB %d] frame %d subframe %d, UE %d: not configured, skipping UE scheduling \n",
module_idP,
frameP,
subframeP,
UE_id);
continue;
}
rnti = UE_RNTI(module_idP, UE_id);
if (rnti == NOT_A_RNTI) {
LOG_W(MAC,"[eNB %d] frame %d subframe %d, UE %d: no RNTI \n",
module_idP,
frameP,
subframeP,
UE_id);
continue;
}
/* Loop over all active UL CC_ids for this UE */
for (n = 0; n < UE_list->numactiveULCCs[UE_id]; n++) {
/* This is the actual CC_id in the list */
CC_id = UE_list->ordered_ULCCids[n][UE_id];
N_RB_UL = to_prb(cc[CC_id].ul_Bandwidth);
UE_template = &(UE_list->UE_template[CC_id][UE_id]);
UE_sched_ctrl = &UE_list->UE_sched_ctrl[UE_id];
harq_pid = 0;
round_UL = UE_sched_ctrl->round_UL[CC_id][harq_pid];
AssertFatal(round_UL < 8,"round_UL %d > 7 for UE %d/%x\n",
round_UL,
UE_id,
rnti);
LOG_D(MAC,"[eNB %d] frame %d subframe %d,Checking PUSCH %d for BL/CE UE %d/%x CC %d : aggregation level %d, N_RB_UL %d\n",
module_idP,
frameP,
subframeP,
harq_pid,
UE_id,
rnti,
CC_id,
24, // agregation level
N_RB_UL);
RC.eNB[module_idP][CC_id]->pusch_stats_BO[UE_id][(frameP*10)+subframeP] = UE_template->estimated_ul_buffer;
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_BO, UE_template->estimated_ul_buffer);
//if ((UE_is_to_be_scheduled(module_idP, CC_id, UE_id) > 0) && (subframeP == 5)) {
if ((UE_template->ul_SR > 0 || round_UL > 0 || status < RRC_CONNECTED) && (subframeP == 5)) {
/*
* if there is information on bsr of DCCH, DTCH,
* or if there is UL_SR,
* or if there is a packet to retransmit,
* or we want to schedule a periodic feedback every frame
*/
LOG_D(MAC,"[eNB %d][PUSCH %d] Frame %d subframe %d Scheduling UE %d/%x in round_UL %d(SR %d,UL_inactivity timer %d,UL_failure timer %d,cqi_req_timer %d)\n",
module_idP,
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
round_UL,
UE_template->ul_SR,
UE_sched_ctrl->ul_inactivity_timer,
UE_sched_ctrl->ul_failure_timer,
UE_sched_ctrl->cqi_req_timer);
/* Reset the scheduling request */
emtc_active[CC_id] = 1;
UE_template->ul_SR = 0;
status = mac_eNB_get_rrc_status(module_idP,rnti);
cqi_req = 0;
/* Power control: compute the expected ULSCH RX power (for the stats) */
/* This is the normalized RX power and this should be constant (regardless of mcs) */
normalized_rx_power = UE_sched_ctrl->pusch_snr[CC_id];
target_rx_power = 178;
/* This assumes accumulated tpc */
/* Make sure that we are only sending a tpc update once a frame, otherwise the control loop will freak out */
int32_t framex10psubframe = UE_template->pusch_tpc_tx_frame * 10 + UE_template->pusch_tpc_tx_subframe;
if (((framex10psubframe + 10) <= (frameP * 10 + subframeP)) || // normal case
((framex10psubframe > (frameP * 10 + subframeP)) && (((10240 - framex10psubframe + frameP * 10 + subframeP) >= 10)))) { // frame wrap-around
UE_template->pusch_tpc_tx_frame = frameP;
UE_template->pusch_tpc_tx_subframe = subframeP;
if (normalized_rx_power > (target_rx_power + 4)) {
tpc = 0; //-1
UE_sched_ctrl->tpc_accumulated[CC_id]--;
} else if (normalized_rx_power < (target_rx_power - 4)) {
tpc = 2; //+1
UE_sched_ctrl->tpc_accumulated[CC_id]++;
} else {
tpc = 1; //0
}
} else {
tpc = 1; //0
}
if (tpc != 1) {
LOG_D(MAC,"[eNB %d] ULSCH scheduler: frame %d, subframe %d, harq_pid %d, tpc %d, accumulated %d, normalized/target rx power %d/%d\n",
module_idP,
frameP,
subframeP,
harq_pid,
tpc,
UE_sched_ctrl->tpc_accumulated[CC_id],
normalized_rx_power,
target_rx_power);
}
/* New transmission */
if (round_UL == 0) {
ndi = 1 - UE_template->oldNDI_UL[harq_pid];
UE_template->oldNDI_UL[harq_pid] = ndi;
UE_template->mcs_UL[harq_pid] = 4;
UE_template->TBS_UL[harq_pid] = get_TBS_UL(UE_template->mcs_UL[harq_pid], 6);
UE_list->eNB_UE_stats[CC_id][UE_id].normalized_rx_power = normalized_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].target_rx_power = target_rx_power;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs1 = 4;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_mcs2 = UE_template->mcs_UL[harq_pid];
UE_list->eNB_UE_stats[CC_id][UE_id].total_rbs_used_rx += 6;
UE_list->eNB_UE_stats[CC_id][UE_id].ulsch_TBS = UE_template->TBS_UL[harq_pid];
T(T_ENB_MAC_UE_UL_SCHEDULE,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(UE_template->mcs_UL[harq_pid]),
T_INT(0),
T_INT(6),
T_INT(UE_template->TBS_UL[harq_pid]),
T_INT(ndi));
/* Store for possible retransmission */
UE_template->nb_rb_ul[harq_pid] = 6;
UE_sched_ctrl->ul_scheduled |= (1 << harq_pid);
if (UE_id == UE_list->head) {
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_UE0_SCHEDULED, UE_sched_ctrl->ul_scheduled);
}
/* Adjust total UL buffer status by TBS, wait for UL sdus to do final update */
UE_template->scheduled_ul_bytes += UE_template->TBS_UL[harq_pid];
LOG_D(MAC, "scheduled_ul_bytes, new %d\n", UE_template->scheduled_ul_bytes);
/* Cyclic shift for DMRS */
cshift = 0; // values from 0 to 7 can be used for mapping the cyclic shift (36.211 , Table 5.5.2.1.1-1)
/* save it for a potential retransmission */
UE_template->cshift[harq_pid] = cshift;
AssertFatal (UE_template->physicalConfigDedicated != NULL, "UE_template->physicalConfigDedicated is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4 != NULL, "UE_template->physicalConfigDedicated->ext4 is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11 != NULL, "UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11 is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.present == LTE_EPDCCH_Config_r11__config_r11_PR_setup,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.present != setup\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11 != NULL,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11 = NULL\n");
LTE_EPDCCH_SetConfig_r11_t *epdcch_setconfig_r11 = UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11->list.array[0];
AssertFatal(epdcch_setconfig_r11 != NULL, "epdcch_setconfig_r11 is null\n");
AssertFatal(epdcch_setconfig_r11->ext2 != NULL, "epdcch_setconfig_r11->ext2 is null\n");
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13 != NULL, "epdcch_setconfig_r11->ext2->mpdcch_config_r13 is null");
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13->present == LTE_EPDCCH_SetConfig_r11__ext2__mpdcch_config_r13_PR_setup,
"epdcch_setconfig_r11->ext2->mpdcch_config_r13->present is not setup\n");
AssertFatal(epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310 != NULL, "epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310 is null");
AssertFatal(epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310->present == LTE_EPDCCH_SetConfig_r11__ext2__numberPRB_Pairs_v1310_PR_setup,
"epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310->present is not setup\n");
LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL 6-0A MPDCCH for BL/CE UE %d/%x, ulsch_frame %d, ulsch_subframe %d, UESS MPDCCH Narrowband %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP,
(int)epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1);
UE_template->first_rb_ul[harq_pid] = narrowband_to_first_rb (cc, epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1);
hi_dci0_pdu = &(hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci + hi_dci0_req->number_of_hi]);
memset((void *) hi_dci0_pdu, 0, sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_MPDCCH_DCI_PDU_TYPE;
hi_dci0_pdu->pdu_size = (uint8_t) (2 + sizeof (nfapi_dl_config_mpdcch_pdu));
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dci_format = (UE_template->rach_resource_type > 1) ? 5 : 4;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ce_mode = (UE_template->rach_resource_type > 1) ? 2 : 1;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mpdcch_narrowband = epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_prb_pairs = 6; // checked above that it has to be this
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.resource_block_assignment = 0; // Note: this can be dynamic
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mpdcch_transmission_type = epdcch_setconfig_r11->transmissionType_r11; // distibuted
AssertFatal(UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11 != NULL,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11 is null\n");
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.start_symbol = *UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ecce_index = 0; // Note: this should be dynamic
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.aggreagation_level = 24; // OK for CEModeA r1-3 (9.1.5-1b) or CEModeB r1-4
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.rnti_type = 4; // other
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.rnti = rnti;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ce_mode = (UE_template->rach_resource_type < 3) ? 1 : 2; // already set above...
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.drms_scrambling_init = epdcch_setconfig_r11->dmrs_ScramblingSequenceInt_r11;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.initial_transmission_sf_io = (frameP * 10) + subframeP;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.transmission_power = 6000; // 0dB
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.resource_block_start = UE_template->first_rb_ul[harq_pid];
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_resource_blocks = 6;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mcs = 4; // adjust according to size of RAR, 208 bits with N1A_PRB = 3
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.pusch_repetition_levels = 0;
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_pdsch_HoppingConfig_r13 == LTE_EPDCCH_SetConfig_r11__ext2__mpdcch_config_r13__setup__mpdcch_pdsch_HoppingConfig_r13_off,
"epdcch_setconfig_r11->ext2->mpdcch_config_r13->mpdcch_pdsch_HoppingConfig_r13 is not off\n");
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.frequency_hopping_flag = 1 - epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_pdsch_HoppingConfig_r13;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.redudency_version = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.new_data_indication = UE_template->oldNDI_UL[harq_pid];
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.harq_process = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.tpc = tpc;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.csi_request = cqi_req;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ul_inex = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dai_presence_flag = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dl_assignment_index = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.srs_request = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dci_subframe_repetition_number = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.tcp_bitmap = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.total_dci_length_include_padding = 29; // hard-coded for 10 MHz
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_tx_antenna_ports = 1;
hi_dci0_req->number_of_dci++;
LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL CONFIG. Request for BL/CE UE %d/%x, ulsch_frame %d, ulsch_subframe %d, UESS mpdcch narrowband %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP,
(int)epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1);
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
cqi_req,
cc,
UE_template->physicalConfigDedicated,
get_tmode(module_idP,CC_id,UE_id),
eNB->ul_handle,
rnti,
UE_template->first_rb_ul[harq_pid], // resource_block_start
UE_template->nb_rb_ul[harq_pid], // number_of_resource_blocks
UE_template->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
UE_template->oldNDI_UL[harq_pid], // new_data_indication
rvidx_tab[round_UL&3], // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
UE_template->TBS_UL[harq_pid]
);
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
UE_template->rach_resource_type > 2 ? 2 : 1,
1, // total_number_of_repetitions
1, // repetition_number
(frameP * 10) + subframeP);
ul_req_tmp->number_of_pdus++;
eNB->ul_handle++;
add_ue_ulsch_info(module_idP,
CC_id,
UE_id,
subframeP,
S_UL_SCHEDULED);
LOG_D(MAC,"[eNB %d] CC_id %d Frame %d, subframeP %d: Generated ULSCH DCI for next UE_id %d, format 0\n",
module_idP,
CC_id,
frameP,
subframeP,
UE_id);
} else { // round_UL > 0 => retransmission
/* In LTE-M the UL HARQ process is asynchronous */
T(T_ENB_MAC_UE_UL_SCHEDULE_RETRANSMISSION,
T_INT(module_idP),
T_INT(CC_id),
T_INT(rnti),
T_INT(frameP),
T_INT(subframeP),
T_INT(harq_pid),
T_INT(UE_template->mcs_UL[harq_pid]),
T_INT(0),
T_INT(6),
T_INT(round_UL));
AssertFatal (UE_template->physicalConfigDedicated != NULL, "UE_template->physicalConfigDedicated is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4 != NULL, "UE_template->physicalConfigDedicated->ext4 is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11 != NULL, "UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11 is null\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.present == LTE_EPDCCH_Config_r11__config_r11_PR_setup,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.present != setup\n");
AssertFatal (UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11 != NULL,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11 = NULL\n");
LTE_EPDCCH_SetConfig_r11_t *epdcch_setconfig_r11 = UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.setConfigToAddModList_r11->list.array[0];
AssertFatal(epdcch_setconfig_r11 != NULL, "epdcch_setconfig_r11 is null\n");
AssertFatal(epdcch_setconfig_r11->ext2 != NULL, "epdcch_setconfig_r11->ext2 is null\n");
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13 != NULL, "epdcch_setconfig_r11->ext2->mpdcch_config_r13 is null");
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13 != NULL, "epdcch_setconfig_r11->ext2->mpdcch_config_r13 is null");
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13->present == LTE_EPDCCH_SetConfig_r11__ext2__mpdcch_config_r13_PR_setup,
"epdcch_setconfig_r11->ext2->mpdcch_config_r13->present is not setup\n");
AssertFatal(epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310 != NULL, "epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310 is null");
AssertFatal(epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310->present == LTE_EPDCCH_SetConfig_r11__ext2__numberPRB_Pairs_v1310_PR_setup,
"epdcch_setconfig_r11->ext2->numberPRB_Pairs_v1310->present is not setup\n");
LOG_D(MAC,"[PUSCH %d] Frame %d, Subframe %d: Adding UL 6-0A MPDCCH for BL/CE UE %d/%x, ulsch_frame %d, ulsch_subframe %d,UESS MPDCCH Narrowband %d\n",
harq_pid,
frameP,
subframeP,
UE_id,
rnti,
sched_frame,
sched_subframeP,
(int)epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1);
UE_template->first_rb_ul[harq_pid] = narrowband_to_first_rb(cc, epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13-1);
hi_dci0_pdu = &(hi_dci0_req->hi_dci0_pdu_list[hi_dci0_req->number_of_dci+hi_dci0_req->number_of_hi]);
memset((void *) hi_dci0_pdu, 0, sizeof(nfapi_hi_dci0_request_pdu_t));
hi_dci0_pdu->pdu_type = NFAPI_HI_DCI0_MPDCCH_DCI_PDU_TYPE;
hi_dci0_pdu->pdu_size = (uint8_t) (2 + sizeof (nfapi_dl_config_mpdcch_pdu));
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dci_format = (UE_template->rach_resource_type > 1) ? 5 : 4;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ce_mode = (UE_template->rach_resource_type > 1) ? 2 : 1;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mpdcch_narrowband = epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_Narrowband_r13 - 1;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_prb_pairs = 6; // checked above that it has to be this
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.resource_block_assignment = 0; // Note: this can be dynamic
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mpdcch_transmission_type = epdcch_setconfig_r11->transmissionType_r11; // distibuted
AssertFatal(UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11 != NULL,
"UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11 is null\n");
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.start_symbol = *UE_template->physicalConfigDedicated->ext4->epdcch_Config_r11->config_r11.choice.setup.startSymbol_r11;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ecce_index = 0; // Note: this should be dynamic
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.aggreagation_level = 24; // OK for CEModeA r1-3 (9.1.5-1b) or CEModeB r1-4
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.rnti_type = 4; // other
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.rnti = rnti;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ce_mode = (UE_template->rach_resource_type < 3) ? 1 : 2;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.drms_scrambling_init = epdcch_setconfig_r11->dmrs_ScramblingSequenceInt_r11;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.initial_transmission_sf_io = (frameP * 10) + subframeP;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.transmission_power = 6000; // 0dB
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.resource_block_start = UE_template->first_rb_ul[harq_pid];
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_resource_blocks = 6;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.mcs = 4; // adjust according to size of RAR, 208 bits with N1A_PRB=3
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.pusch_repetition_levels = 0;
AssertFatal(epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_pdsch_HoppingConfig_r13 == LTE_EPDCCH_SetConfig_r11__ext2__mpdcch_config_r13__setup__mpdcch_pdsch_HoppingConfig_r13_off,
"epdcch_setconfig_r11->ext2->mpdcch_config_r13->mpdcch_pdsch_HoppingConfig_r13 is not off\n");
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.frequency_hopping_flag = 1 - epdcch_setconfig_r11->ext2->mpdcch_config_r13->choice.setup.mpdcch_pdsch_HoppingConfig_r13;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.redudency_version = rvidx_tab[round_UL&3];
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.new_data_indication = UE_template->oldNDI_UL[harq_pid];
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.harq_process = harq_pid;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.tpc = tpc;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.csi_request = cqi_req;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.ul_inex = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dai_presence_flag = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dl_assignment_index = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.srs_request = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.dci_subframe_repetition_number = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.tcp_bitmap = 0;
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.total_dci_length_include_padding = 29; // hard-coded for 10 MHz
hi_dci0_pdu->mpdcch_dci_pdu.mpdcch_dci_pdu_rel13.number_of_tx_antenna_ports = 1;
hi_dci0_req->number_of_dci++;
fill_nfapi_ulsch_config_request_rel8(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
cqi_req,
cc,
UE_template->physicalConfigDedicated,
get_tmode(module_idP,CC_id,UE_id),
eNB->ul_handle,
rnti,
UE_template->first_rb_ul[harq_pid], // resource_block_start
UE_template->nb_rb_ul[harq_pid], // number_of_resource_blocks
UE_template->mcs_UL[harq_pid],
cshift, // cyclic_shift_2_for_drms
0, // frequency_hopping_enabled_flag
0, // frequency_hopping_bits
UE_template->oldNDI_UL[harq_pid], // new_data_indication
rvidx_tab[round_UL&3], // redundancy_version
harq_pid, // harq_process_number
0, // ul_tx_mode
0, // current_tx_nb
0, // n_srs
UE_template->TBS_UL[harq_pid]
);
fill_nfapi_ulsch_config_request_emtc(&ul_req_tmp->ul_config_pdu_list[ul_req_tmp->number_of_pdus],
UE_template->rach_resource_type>2 ? 2 : 1,
1, //total_number_of_repetitions
1, //repetition_number
(frameP * 10) + subframeP);
ul_req_tmp->number_of_pdus++;
eNB->ul_handle++;
}
} // UE_is_to_be_scheduled
} // ULCCs
} // loop over UE_id
}
#endif
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