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openairinterface5g/openair1/SCHED/phy_procedures_lte_eNb.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 phy_procedures_lte_eNb.c
* \brief Implementation of eNB procedures from 36.213 LTE specifications / FeMBMS 36.231 LTE procedures v14.2
* \author R. Knopp, F. Kaltenberger, N. Nikaein, X. Foukas, J. Morgade
* \date 2011
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr,navid.nikaein@eurecom.fr, x.foukas@sms.ed.ac.uk, javier.morgade@ieee.org
* \note
* \warning
*/
#include "PHY/defs_eNB.h"
#include "PHY/phy_extern.h"
#include "SCHED/sched_eNB.h"
#include "SCHED/sched_common_extern.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
#include "nfapi/oai_integration/vendor_ext.h"
#include "fapi_l1.h"
#include "common/utils/LOG/log.h"
#include <common/utils/system.h>
#include "common/utils/LOG/vcd_signal_dumper.h"
#include <nfapi/oai_integration/nfapi_pnf.h>
#include "assertions.h"
#include <time.h>
#include "common/ran_context.h"
extern RAN_CONTEXT_t RC;
int16_t get_hundred_times_delta_IF_eNB(PHY_VARS_eNB *eNB,uint16_t ULSCH_id,uint8_t harq_pid, uint8_t bw_factor) {
uint32_t Nre,sumKr,MPR_x100,Kr,r;
uint16_t beta_offset_pusch;
DevAssert( ULSCH_id < NUMBER_OF_ULSCH_MAX+1 );
DevAssert( harq_pid < 8 );
Nre = eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->Nsymb_initial *
eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->nb_rb*12;
sumKr = 0;
for (r=0; r<eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->C; r++) {
if (r<eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->Cminus)
Kr = eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->Kminus;
else
Kr = eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->Kplus;
sumKr += Kr;
}
if (Nre==0)
return(0);
MPR_x100 = 100*sumKr/Nre;
// Note: MPR=is the effective spectral efficiency of the PUSCH
// FK 20140908 sumKr is only set after the ulsch_encoding
beta_offset_pusch = 8;
//(eNB->ulsch[UE_id]->harq_processes[harq_pid]->control_only == 1) ? eNB->ulsch[UE_id]->beta_offset_cqi_times8:8;
DevAssert( ULSCH_id < NUMBER_OF_ULSCH_MAX );
//#warning "This condition happens sometimes. Need more investigation" // navid
//DevAssert( MPR_x100/6 < 100 );
if (1==1) { //eNB->ul_power_control_dedicated[UE_id].deltaMCS_Enabled == 1) {
// This is the formula from Section 5.1.1.1 in 36.213 10*log10(deltaIF_PUSCH = (2^(MPR*Ks)-1)*beta_offset_pusch)
if (bw_factor == 1) {
uint8_t nb_rb = eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->nb_rb;
return(hundred_times_delta_TF[MPR_x100/6]+10*dB_fixed_x10((beta_offset_pusch)>>3)) + hundred_times_log10_NPRB[nb_rb-1];
} else
return(hundred_times_delta_TF[MPR_x100/6]+10*dB_fixed_x10((beta_offset_pusch)>>3));
} else {
return(0);
}
}
int16_t get_hundred_times_delta_IF_mac(module_id_t module_idP, uint8_t CC_id, rnti_t rnti, uint8_t harq_pid) {
int8_t ULSCH_id;
if ((RC.eNB == NULL) || (module_idP > RC.nb_inst) || (CC_id > RC.nb_CC[module_idP])) {
LOG_E(PHY,"get_UE_stats: No eNB found (or not allocated) for Mod_id %d,CC_id %d\n",module_idP,CC_id);
return -1;
}
ULSCH_id = find_ulsch( rnti, RC.eNB[module_idP][CC_id],SEARCH_EXIST);
if (ULSCH_id == -1) {
// not found
return 0;
}
return get_hundred_times_delta_IF_eNB( RC.eNB[module_idP][CC_id], ULSCH_id, harq_pid, 0 );
}
int oai_nfapi_rach_ind(nfapi_rach_indication_t *rach_ind);
lte_subframe_t get_subframe_direction(uint8_t Mod_id,uint8_t CC_id,uint8_t subframe) {
return(subframe_select(&RC.eNB[Mod_id][CC_id]->frame_parms,subframe));
}
void pmch_procedures(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc, int fembms_flag) {
int subframe = proc->subframe_tx;
// This is DL-Cell spec pilots in Control region
if(!fembms_flag){
generate_pilots_slot (eNB, eNB->common_vars.txdataF, AMP, subframe << 1, 1);
generate_mbsfn_pilot(eNB,proc,
eNB->common_vars.txdataF,
AMP);
}else
generate_mbsfn_pilot_khz_1dot25(eNB,proc,
eNB->common_vars.txdataF,
AMP);
if(eNB->dlsch_MCH->active==1){
if(!fembms_flag){
generate_mch (eNB, proc,NULL/*, eNB->dlsch_MCH->harq_processes[0]->pdu*/);
}
else{
generate_mch_khz_1dot25 (eNB, proc,NULL/*, eNB->dlsch_MCH->harq_processes[0]->pdu*/);
}
LOG_D(PHY,"[eNB%"PRIu8"] Frame %d subframe %d : Got MCH pdu for MBSFN (TBS %d) fembms %d \n",
eNB->Mod_id,proc->frame_tx,subframe,
eNB->dlsch_MCH->harq_processes[0]->TBS>>3,fembms_flag);
}
eNB->dlsch_MCH->active = 0;
}
void common_signal_procedures_fembms (PHY_VARS_eNB *eNB,int frame, int subframe) {
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
int **txdataF = eNB->common_vars.txdataF;
uint8_t *pbch_pdu=&eNB->pbch_pdu[0];
if((frame&3)!=0 /*&& subframe != 0*/)
return;
LOG_D(PHY,"common_signal_procedures: frame %d, subframe %d fdd:%s dir:%s index:%d\n",frame,subframe,fp->frame_type == FDD?"FDD":"TDD", subframe_select(fp,subframe) == SF_DL?"DL":"UL?",(frame&15)/4);
// generate Cell-Specific Reference Signals for both slots
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX,1);
if(subframe_select(fp,subframe) == SF_S)
generate_pilots_slot(eNB,
txdataF,
AMP,
subframe<<1,1);
else
generate_pilots_slot(eNB,
txdataF,
AMP,
subframe<<1,0);
// check that 2nd slot is for DL
if (subframe_select (fp, subframe) == SF_DL)
generate_pilots_slot (eNB, txdataF, AMP, (subframe << 1) + 1, 0);
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME (VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX, 0);
// First half of PSS/SSS (FDD, slot 0)
if (subframe == 0) {
//if (fp->frame_type == FDD) {
generate_pss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 0);
generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 5 : 4, 0);
//}
/// First half of SSS (TDD, slot 1)
//if (fp->frame_type == TDD) {
generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 1);
//}
// generate PBCH (Physical Broadcast CHannel) info
/// generate PBCH
if ((frame&15)==0) {
//AssertFatal(eNB->pbch_configured==1,"PBCH was not configured by MAC\n");
if (eNB->pbch_configured!=1) return;
eNB->pbch_configured=0;
}
#if T_TRACER
if (T_ACTIVE(T_ENB_PHY_MIB)) {
/* MIB is stored in reverse in pbch_pdu, reverse it for properly logging */
uint8_t mib[3];
mib[0] = pbch_pdu[2];
mib[1] = pbch_pdu[1];
mib[2] = pbch_pdu[0];
T(T_ENB_PHY_MIB, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe),
T_BUFFER(mib, 3));
}
#endif
generate_pbch_fembms (&eNB->pbch, txdataF, AMP, fp, pbch_pdu, (frame & 15)/4);
} //else if ((subframe == 1) && (fp->frame_type == TDD)) {
//generate_pss (txdataF, AMP, fp, 2, 2);
// }
// Second half of PSS/SSS (FDD, slot 10)
else if ((subframe == 5) && (fp->frame_type == FDD) && is_fembms_nonMBSFN_subframe(frame,subframe,fp)) {
generate_pss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 6 : 5, 10);
generate_sss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 5 : 4, 10);
}
// Second-half of SSS (TDD, slot 11)
// else if ((subframe == 5) && (fp->frame_type == TDD)) {
// generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 11);
// }
// Second half of PSS (TDD, slot 12)
// else if ((subframe == 6) && (fp->frame_type == TDD)) {
// generate_pss (txdataF, AMP, fp, 2, 12);
// }
}
void common_signal_procedures (PHY_VARS_eNB *eNB,int frame, int subframe) {
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
int **txdataF = eNB->common_vars.txdataF;
uint8_t *pbch_pdu=&eNB->pbch_pdu[0];
//LOG_D(PHY,"common_signal_procedures: frame %d, subframe %d fdd:%s dir:%s\n",frame,subframe,fp->frame_type == FDD?"FDD":"TDD", subframe_select(fp,subframe) == SF_DL?"DL":"UL?");
// generate Cell-Specific Reference Signals for both slots
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX,1);
if(subframe_select(fp,subframe) == SF_S)
generate_pilots_slot(eNB,
txdataF,
AMP,
subframe<<1,1);
else
generate_pilots_slot(eNB,
txdataF,
AMP,
subframe<<1,0);
// check that 2nd slot is for DL
if (subframe_select (fp, subframe) == SF_DL)
generate_pilots_slot (eNB, txdataF, AMP, (subframe << 1) + 1, 0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME (VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_RS_TX, 0);
// First half of PSS/SSS (FDD, slot 0)
if (subframe == 0) {
if (fp->frame_type == FDD) {
generate_pss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 0);
generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 5 : 4, 0);
}
/// First half of SSS (TDD, slot 1)
if (fp->frame_type == TDD) {
generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 1);
}
// generate PBCH (Physical Broadcast CHannel) info
/// generate PBCH
if ((frame&3)==0) {
//AssertFatal(eNB->pbch_configured==1,"PBCH was not configured by MAC\n");
if (eNB->pbch_configured!=1) return;
eNB->pbch_configured=0;
}
#if T_TRACER
if (T_ACTIVE(T_ENB_PHY_MIB)) {
/* MIB is stored in reverse in pbch_pdu, reverse it for properly logging */
uint8_t mib[3];
mib[0] = pbch_pdu[2];
mib[1] = pbch_pdu[1];
mib[2] = pbch_pdu[0];
T(T_ENB_PHY_MIB, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe),
T_BUFFER(mib, 3));
}
#endif
generate_pbch (&eNB->pbch, txdataF, AMP, fp, pbch_pdu, frame & 3);
} else if ((subframe == 1) && (fp->frame_type == TDD)) {
generate_pss (txdataF, AMP, fp, 2, 2);
}
// Second half of PSS/SSS (FDD, slot 10)
else if ((subframe == 5) && (fp->frame_type == FDD)) {
generate_pss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 6 : 5, 10);
generate_sss (txdataF, AMP, &eNB->frame_parms, (fp->Ncp == NORMAL) ? 5 : 4, 10);
}
// Second-half of SSS (TDD, slot 11)
else if ((subframe == 5) && (fp->frame_type == TDD)) {
generate_sss (txdataF, AMP, fp, (fp->Ncp == NORMAL) ? 6 : 5, 11);
}
// Second half of PSS (TDD, slot 12)
else if ((subframe == 6) && (fp->frame_type == TDD)) {
generate_pss (txdataF, AMP, fp, 2, 12);
}
}
bool dlsch_procedures(PHY_VARS_eNB *eNB,
L1_rxtx_proc_t *proc,
int harq_pid,
LTE_eNB_DLSCH_t *dlsch,
LTE_eNB_UE_stats *ue_stats) {
int frame=proc->frame_tx;
int subframe=proc->subframe_tx;
LTE_DL_eNB_HARQ_t *dlsch_harq=dlsch->harq_processes[harq_pid];
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
if (dlsch->rnti != 0xffff) {//frame < 200) {
LOG_D(PHY,
"[eNB %"PRIu8"][PDSCH %"PRIx16"/%"PRIu8"] Frame %d, subframe %d: Generating PDSCH/DLSCH (type %d) with input size = %"PRIu16", pdsch_start %d, G %d, nb_rb %"PRIu16", rb0 %x, rb1 %x, TBS %"PRIu16", pmi_alloc %"PRIx64", rv %"PRIu8" (round %"PRIu8")\n",
eNB->Mod_id, dlsch->rnti,harq_pid,
frame, subframe, dlsch->ue_type,dlsch_harq->TBS/8, dlsch_harq->pdsch_start,
get_G(fp,
dlsch_harq->nb_rb,
dlsch_harq->rb_alloc,
dlsch_harq->Qm,
dlsch_harq->Nl,
dlsch_harq->pdsch_start,
frame,
subframe,
dlsch_harq->mimo_mode==TM7?7:0),
dlsch_harq->nb_rb,
dlsch_harq->rb_alloc[0],
dlsch_harq->rb_alloc[1],
dlsch_harq->TBS,
pmi2hex_2Ar1(dlsch_harq->pmi_alloc),
dlsch_harq->rvidx,
dlsch_harq->round);
}
if (ue_stats) ue_stats->dlsch_sliding_cnt++;
if (dlsch_harq->round == 0) {
if (ue_stats)
ue_stats->dlsch_trials[harq_pid][0]++;
} else {
ue_stats->dlsch_trials[harq_pid][dlsch_harq->round]++;
#ifdef DEBUG_PHY_PROC
#ifdef DEBUG_DLSCH
LOG_D (PHY, "[eNB] This DLSCH is a retransmission\n");
#endif
#endif
}
if (dlsch->rnti!=0xffff)
LOG_D(PHY,"Generating DLSCH/PDSCH pdu:%p pdsch_start:%d frame:%d subframe:%d nb_rb:%d rb_alloc:%d Qm:%d Nl:%d round:%d\n",
dlsch_harq->pdu,dlsch_harq->pdsch_start,frame,subframe,dlsch_harq->nb_rb,dlsch_harq->rb_alloc[0],
dlsch_harq->Qm,dlsch_harq->Nl,dlsch_harq->round);
// 36-212
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) { // monolthic OR PNF - do not need turbo encoding on VNF
if (dlsch_harq->pdu==NULL) {
LOG_E(PHY,"dlsch_harq->pdu == NULL SFN/SF:%04d%d dlsch[rnti:%x] dlsch_harq[pdu:%p pdsch_start:%d Qm:%d Nl:%d round:%d nb_rb:%d rb_alloc[0]:%d]\n", frame,subframe,dlsch->rnti, dlsch_harq->pdu,
dlsch_harq->pdsch_start,dlsch_harq->Qm,dlsch_harq->Nl,dlsch_harq->round,dlsch_harq->nb_rb,dlsch_harq->rb_alloc[0]);
return false;
}
start_meas(&eNB->dlsch_encoding_stats);
dlsch_encoding(eNB, proc, dlsch_harq->pdu, dlsch_harq->pdsch_start, dlsch, frame, subframe, &eNB->dlsch_rate_matching_stats, &eNB->dlsch_turbo_encoding_stats, &eNB->dlsch_interleaving_stats);
stop_meas(&eNB->dlsch_encoding_stats);
if (eNB->dlsch_encoding_stats.p_time > 500 * 3000 && cpu_meas_enabled) {
print_meas_now(&eNB->dlsch_encoding_stats, "total coding", stdout);
}
#ifdef PHY_TX_THREAD
dlsch->active[subframe] = 0;
#else
dlsch->active = 0;
#endif
dlsch_harq->round++;
LOG_D(PHY,"Generated DLSCH dlsch_harq[round:%d]\n",dlsch_harq->round);
return true;
}
return false;
}
void pdsch_procedures(PHY_VARS_eNB *eNB,
L1_rxtx_proc_t *proc,
int harq_pid,
LTE_eNB_DLSCH_t *dlsch,
LTE_eNB_DLSCH_t *dlsch1) {
int frame=proc->frame_tx;
int subframe=proc->subframe_tx;
LTE_DL_eNB_HARQ_t *dlsch_harq=dlsch->harq_processes[harq_pid];
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
// 36-211
start_meas(&eNB->dlsch_scrambling_stats);
dlsch_scrambling(fp,
0,
dlsch,
harq_pid,
get_G(fp,
dlsch_harq->nb_rb,
dlsch_harq->rb_alloc,
dlsch_harq->Qm,
dlsch_harq->Nl,
dlsch_harq->pdsch_start,
frame,subframe,
0),
0,
frame,
subframe<<1);
stop_meas(&eNB->dlsch_scrambling_stats);
start_meas(&eNB->dlsch_modulation_stats);
dlsch_modulation(eNB,
eNB->common_vars.txdataF,
AMP,
frame,
subframe,
dlsch_harq->pdsch_start,
dlsch,
dlsch->ue_type==0 ? dlsch1 : (LTE_eNB_DLSCH_t *)NULL);
stop_meas(&eNB->dlsch_modulation_stats);
LOG_D(PHY,"Generated PDSCH dlsch_harq[round:%d]\n",dlsch_harq->round);
}
void phy_procedures_eNB_TX(PHY_VARS_eNB *eNB,
L1_rxtx_proc_t *proc,
int do_meas) {
int frame=proc->frame_tx;
int subframe=proc->subframe_tx;
uint8_t harq_pid;
uint8_t num_pdcch_symbols=0;
uint8_t num_dci=0;
uint8_t num_mdci = 0;
uint8_t ul_subframe;
uint32_t ul_frame;
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
LTE_UL_eNB_HARQ_t *ulsch_harq;
if ((fp->frame_type == TDD) && (subframe_select (fp, subframe) == SF_UL))
return;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+(eNB->CC_id),1);
if (do_meas==1) start_meas(&eNB->phy_proc_tx);
if (do_meas==1) start_meas(&eNB->dlsch_common_and_dci);
// clear the transmit data array for the current subframe
for (int aa = 0; aa < fp->nb_antenna_ports_eNB; aa++) {
if (eNB->use_DTX==0)
memcpy(&eNB->common_vars.txdataF[aa][subframe * fp->ofdm_symbol_size * (fp->symbols_per_tti)],
&eNB->subframe_mask[aa][subframe*fp->ofdm_symbol_size*fp->symbols_per_tti],
fp->ofdm_symbol_size * (fp->symbols_per_tti) * sizeof (int32_t));
else memset(&eNB->common_vars.txdataF[aa][subframe * fp->ofdm_symbol_size * (fp->symbols_per_tti)], 0, fp->ofdm_symbol_size * (fp->symbols_per_tti) * sizeof (int32_t));
}
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) {
if (is_fembms_pmch_subframe(frame,subframe,fp)) {
pmch_procedures(eNB,proc,1);
LOG_D(MAC,"frame %d, subframe %d -> PMCH\n",frame,subframe);
return;
}else if(is_fembms_cas_subframe(frame,subframe,fp) || is_fembms_nonMBSFN_subframe(frame,subframe,fp)){
LOG_D(MAC,"frame %d, subframe %d -> CAS\n",frame,subframe);
common_signal_procedures_fembms(eNB,proc->frame_tx, proc->subframe_tx);
//return;
}
if((!is_fembms_cas_subframe(frame,subframe,fp)) && (!is_fembms_nonMBSFN_subframe(frame,subframe,fp))){
if (is_pmch_subframe(frame,subframe,fp)) {
pmch_procedures(eNB,proc,0);
} else {
// this is not a pmch subframe, so generate PSS/SSS/PBCH
common_signal_procedures(eNB,proc->frame_tx, proc->subframe_tx);
}
}
}
// clear existing ulsch dci allocations before applying info from MAC (this is table
ul_subframe = pdcch_alloc2ul_subframe (fp, subframe);
ul_frame = pdcch_alloc2ul_frame (fp, frame, subframe);
// clear previous allocation information for all UEs
for (volatile int i = 0; i < NUMBER_OF_DLSCH_MAX; i++) {
if (eNB->dlsch[i][0])
eNB->dlsch[i][0]->subframe_tx[subframe] = 0;
}
/* TODO: check the following test - in the meantime it is put back as it was before */
//if ((ul_subframe < 10)&&
// (subframe_select(fp,ul_subframe)==SF_UL)) { // This means that there is a potential UL subframe that will be scheduled here
if (ul_subframe < 10) { // This means that there is a potential UL subframe that will be scheduled here
for (volatile int i=0; i<NUMBER_OF_DLSCH_MAX; i++) {
if (eNB->ulsch[i] && eNB->ulsch[i]->ue_type >0) harq_pid = 0;
else
harq_pid = subframe2harq_pid(fp,ul_frame,ul_subframe);
if (eNB->ulsch[i]) {
ulsch_harq = eNB->ulsch[i]->harq_processes[harq_pid];
/* Store first_rb and n_DMRS for correct PHICH generation below.
* For PHICH generation we need "old" values of last scheduling
* for this HARQ process. 'generate_eNB_dlsch_params' below will
* overwrite first_rb and n_DMRS and 'generate_phich_top', done
* after 'generate_eNB_dlsch_params', would use the "new" values
* instead of the "old" ones.
*
* This has been tested for FDD only, may be wrong for TDD.
*
* TODO: maybe we should restructure the code to be sure it
* is done correctly. The main concern is if the code
* changes and first_rb and n_DMRS are modified before
* we reach here, then the PHICH processing will be wrong,
* using wrong first_rb and n_DMRS values to compute
* ngroup_PHICH and nseq_PHICH.
*
* TODO: check if that works with TDD.
*/
ulsch_harq->previous_first_rb = ulsch_harq->first_rb;
ulsch_harq->previous_n_DMRS = ulsch_harq->n_DMRS;
}
}
}
num_pdcch_symbols = eNB->pdcch_vars[subframe&1].num_pdcch_symbols;
num_dci = eNB->pdcch_vars[subframe&1].num_dci;
LOG_D(PHY,"num_pdcch_symbols %"PRIu8",number dci %"PRIu8"\n",num_pdcch_symbols, num_dci);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME(VCD_SIGNAL_DUMPER_VARIABLES_DCI_INFO,num_pdcch_symbols);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME (VCD_SIGNAL_DUMPER_VARIABLES_DCI_INFO, (frame * 10) + subframe);
if (num_pdcch_symbols == 0) {
LOG_E(PHY,"[eNB %"PRIu8"] Frame %d, subframe %d: Calling generate_dci_top (pdcch) (num_dci %"PRIu8") num_pdcch_symbols:%d\n",eNB->Mod_id,frame, subframe, num_dci, num_pdcch_symbols);
return;
}
if (num_dci > 0)
LOG_D(PHY,"[eNB %"PRIu8"] Frame %d, subframe %d: Calling generate_dci_top (pdcch) (num_dci %"PRIu8") num_pdcch_symbols:%d\n",eNB->Mod_id,frame, subframe, num_dci, num_pdcch_symbols);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PDCCH_TX,1);
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) {
generate_dci_top(num_pdcch_symbols,
num_dci,
&eNB->pdcch_vars[subframe&1].dci_alloc[0],
0,
AMP,
fp,
eNB->common_vars.txdataF,
subframe);
num_mdci = eNB->mpdcch_vars[subframe &1].num_dci;
if (num_mdci > 0) {
LOG_D (PHY, "[eNB %" PRIu8 "] Frame %d, subframe %d: Calling generate_mdci_top (mpdcch) (num_dci %" PRIu8 ")\n", eNB->Mod_id, frame, subframe, num_mdci);
generate_mdci_top (eNB, frame, subframe, AMP, eNB->common_vars.txdataF);
}
}
if (do_meas==1) stop_meas(&eNB->dlsch_common_and_dci);
if (do_meas==1) start_meas(&eNB->dlsch_ue_specific);
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) {
if (is_fembms_pmch_subframe(frame,subframe,fp)) {
pmch_procedures(eNB,proc,1);
return;
}else if(is_fembms_cas_subframe(frame,subframe,fp)){
common_signal_procedures_fembms(eNB,proc->frame_tx, proc->subframe_tx);
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_ENB_PDCCH_TX,0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,1);
// Now scan UE specific DLSCH
LTE_eNB_DLSCH_t *dlsch0,*dlsch1;
for (int DLSCH_id=0; DLSCH_id<NUMBER_OF_DLSCH_MAX; DLSCH_id++) {
dlsch0 = eNB->dlsch[(uint8_t)DLSCH_id][0];
dlsch1 = eNB->dlsch[(uint8_t)DLSCH_id][1];
if ((dlsch0)&&(dlsch0->rnti>0)&&
#ifdef PHY_TX_THREAD
(dlsch0->active[subframe] == 1)
#else
(dlsch0->active == 1)
#endif
) {
// get harq_pid
harq_pid = dlsch0->harq_ids[frame%2][subframe];
//AssertFatal(harq_pid>=0,"harq_pid is negative\n");
if((harq_pid < 0) || (harq_pid >= dlsch0->Mdlharq)) {
if (dlsch0->ue_type==0)
LOG_E(PHY,"harq_pid:%d corrupt must be 0-7 DLSCH_id:%d frame:%d subframe:%d rnti:%x [ %1d.%1d.%1d.%1d.%1d.%1d.%1d.%1d\n", harq_pid,DLSCH_id,frame,subframe,dlsch0->rnti,
dlsch0->harq_ids[frame%2][0],
dlsch0->harq_ids[frame%2][1],
dlsch0->harq_ids[frame%2][2],
dlsch0->harq_ids[frame%2][3],
dlsch0->harq_ids[frame%2][4],
dlsch0->harq_ids[frame%2][5],
dlsch0->harq_ids[frame%2][6],
dlsch0->harq_ids[frame%2][7]);
} else {
if (dlsch_procedures(eNB,
proc,
harq_pid,
dlsch0,
&eNB->UE_stats[(uint32_t)DLSCH_id])) {
// if we generate dlsch, we must generate pdsch
pdsch_procedures(eNB,
proc,
harq_pid,
dlsch0,
dlsch1);
}
}
} else if ((dlsch0)&&(dlsch0->rnti>0)&&
#ifdef PHY_TX_THREAD
(dlsch0->active[subframe] == 0)
#else
(dlsch0->active == 0)
#endif
) {
// clear subframe TX flag since UE is not scheduled for PDSCH in this subframe (so that we don't look for PUCCH later)
dlsch0->subframe_tx[subframe]=0;
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_DLSCH,0);
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_PHICH,1);
generate_phich_top(eNB,
proc,
AMP);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_GENERATE_PHICH,0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_TX+(eNB->CC_id),0);
if (do_meas==1) stop_meas(&eNB->dlsch_ue_specific);
if (do_meas==1) stop_meas(&eNB->phy_proc_tx);
}
/* This has to be updated with FAPI structures*/
void srs_procedures(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc) {
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
const int subframe = proc->subframe_rx;
const int frame = proc->frame_rx;
int i;
if (is_srs_occasion_common (fp, frame, subframe)) {
// Do SRS processing
// check if there is SRS and we have to use shortened format
// TODO: check for exceptions in transmission of SRS together with ACK/NACK
for (i = 0; i < NUMBER_OF_SRS_MAX; i++) {
if (eNB->soundingrs_ul_config_dedicated[i].active == 1) {
if (lte_srs_channel_estimation (fp, &eNB->common_vars, &eNB->srs_vars[i], &eNB->soundingrs_ul_config_dedicated[i], subframe, 0 /*eNB_id */ )) {
LOG_E (PHY, "problem processing SRS\n");
}
eNB->soundingrs_ul_config_dedicated[i].active = 0;
}
}
}
}
void fill_sr_indication(int UEid, PHY_VARS_eNB *eNB,uint16_t rnti,int frame,int subframe,uint32_t stat)
{
pthread_mutex_lock(&eNB->UL_INFO_mutex);
nfapi_sr_indication_t *sr_ind = &eNB->UL_INFO.sr_ind;
nfapi_sr_indication_body_t *sr_ind_body = &sr_ind->sr_indication_body;
assert(sr_ind_body->number_of_srs <= NFAPI_SR_IND_MAX_PDU);
nfapi_sr_indication_pdu_t *pdu = &sr_ind_body->sr_pdu_list[sr_ind_body->number_of_srs];
sr_ind->sfn_sf = frame<<4|subframe;
sr_ind->header.message_id = NFAPI_RX_SR_INDICATION;
sr_ind_body->tl.tag = NFAPI_SR_INDICATION_BODY_TAG;
pdu->instance_length = 0; // don't know what to do with this
// pdu->rx_ue_information.handle = handle;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = rnti;
int SNRtimes10 = dB_fixed_x10(stat) - 10 * eNB->measurements.n0_pucch_dB;
LOG_D(PHY,"stat %d n0 %d, SNRtimes10 %d\n", stat, eNB->measurements.n0_subband_power_dB[0][0], SNRtimes10);
pdu->ul_cqi_information.tl.tag = NFAPI_UL_CQI_INFORMATION_TAG;
if (SNRtimes10 < -640) pdu->ul_cqi_information.ul_cqi=0;
else if (SNRtimes10 > 635) pdu->ul_cqi_information.ul_cqi=255;
else pdu->ul_cqi_information.ul_cqi=(640+SNRtimes10)/5;
pdu->ul_cqi_information.channel = 0;
sr_ind_body->number_of_srs++;
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
//-----------------------------------------------------------------------------
/*
* Main handler of PUCCH received
*/
void
uci_procedures(PHY_VARS_eNB *eNB,
L1_rxtx_proc_t *proc)
//-----------------------------------------------------------------------------
{
uint8_t SR_payload = 0;
uint8_t pucch_b0b1[4][2] = {{0,0},{0,0},{0,0},{0,0}};
uint8_t harq_ack[4] = {0,0,0,0};
uint16_t tdd_multiplexing_mask = 0;
int32_t metric[4] = {0,0,0,0};
int32_t metric_SR = 0;
int32_t max_metric = 0;
const int subframe = proc->subframe_rx;
const int frame = proc->frame_rx;
LTE_eNB_UCI *uci = NULL;
LTE_DL_FRAME_PARMS *fp = &(eNB->frame_parms);
calc_pucch_1x_interference(eNB, frame, subframe, 0);
for (int i = 0; i < NUMBER_OF_UCI_MAX; i++) {
uci = &(eNB->uci_vars[i]);
if ((uci->active == 1) && (uci->frame == frame) && (uci->subframe == subframe)) {
if (uci->ue_id > MAX_MOBILES_PER_ENB) {
LOG_W(PHY, "UCI for UE %d and/or but is not active in MAC\n", uci->ue_id);
continue;
}
LOG_D(PHY,"Frame %d, subframe %d: Running uci procedures (type %d) for %d \n",
frame,
subframe,
uci->type,
i);
uci->active = 0;
// Null out PUCCH PRBs for noise measurement
switch (fp->N_RB_UL) {
case 6:
eNB->rb_mask_ul[0] |= (0x1 | (1 << 5)); // position 5
break;
case 15:
eNB->rb_mask_ul[0] |= (0x1 | (1 << 14)); // position 14
break;
case 25:
eNB->rb_mask_ul[0] |= (0x1 | (1 << 24)); // position 24
break;
case 50:
eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[1] |= (1 << 17); // position 49 (49-32)
break;
case 75:
eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[2] |= (1 << 10); // position 74 (74-64)
break;
case 100:
eNB->rb_mask_ul[0] |= 0x1;
eNB->rb_mask_ul[3] |= (1 << 3); // position 99 (99-96)
break;
default:
LOG_E(PHY,"Unknown number for N_RB_UL %d\n", fp->N_RB_UL);
break;
}
SR_payload = 0;
switch (uci->type) {
case SR:
case HARQ_SR: {
int pucch1_thres = (uci->ue_type == 0) ? eNB->pucch1_DTX_threshold : eNB->pucch1_DTX_threshold_emtc[0];
metric_SR = rx_pucch(eNB,
uci->pucch_fmt,
i,//uci->ue_id,
uci->n_pucch_1_0_sr[0],
0, // n2_pucch
uci->srs_active, // shortened format
&SR_payload,
frame,
subframe,
pucch1_thres,
uci->ue_type
);
LOG_D(PHY,"[eNB %d][SR %x] Frame %d subframe %d Checking SR is %d (uci.type %d SR n1pucch is %d)\n",
eNB->Mod_id,
uci->rnti,
frame,
subframe,
SR_payload,
uci->type,
uci->n_pucch_1_0_sr[0]);
if (uci->type == SR) {
if (SR_payload == 1) {
fill_sr_indication(i, eNB,uci->rnti,frame,subframe,metric_SR);
break;
} else {
break;
}
}
}
case HARQ: {
int pucch1ab_thres = (uci->ue_type == 0) ? eNB->pucch1ab_DTX_threshold : eNB->pucch1ab_DTX_threshold_emtc[0];
if (fp->frame_type == FDD) {
LOG_D(PHY,"Frame %d Subframe %d Demodulating PUCCH (UCI %d) for ACK/NAK (uci->pucch_fmt %d,uci->type %d.uci->frame %d, uci->subframe %d): n1_pucch0 %d SR_payload %d\n",
frame,subframe,i,
uci->pucch_fmt,uci->type,
uci->frame,uci->subframe,uci->n_pucch_1[0][0],
SR_payload);
metric[0] = rx_pucch(eNB,
uci->pucch_fmt,
uci->ue_id,
uci->n_pucch_1[0][0],
0, //n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[0],
frame,
subframe,
pucch1ab_thres,
uci->ue_type
);
//dump_ulsch(eNB,frame,subframe,0,0); exit(-1);
/* cancel SR detection if reception on n1_pucch0 is better than on SR PUCCH resource index, otherwise send it up to MAC */
if (uci->type==HARQ_SR && metric[0] > metric_SR) SR_payload = 0;
else if (SR_payload == 1) fill_sr_indication(i, eNB,uci->rnti,frame,subframe,metric_SR);
if (uci->type==HARQ_SR && metric[0] <= metric_SR) {
/* when transmitting ACK/NACK on SR PUCCH resource index, SR payload is always 1 */
SR_payload = 1;
metric[0]=rx_pucch(eNB,
uci->pucch_fmt,
uci->ue_id,
uci->n_pucch_1_0_sr[0],
0, //n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[0],
frame,
subframe,
pucch1ab_thres,
uci->ue_type
);
}
LOG_D(PHY,"[eNB %d][PDSCH %x] Frame %d subframe %d pucch1a (FDD) payload %d (metric %d)\n",
eNB->Mod_id,
uci->rnti,
frame,subframe,
pucch_b0b1[0][0],metric[0]);
uci->stat = metric[0];
fill_uci_harq_indication(i, eNB,uci,frame,subframe,pucch_b0b1[0],0,0xffff);
} else { // frame_type == TDD
LOG_D(PHY,"Frame %d Subframe %d Demodulating PUCCH (UCI %d) for ACK/NAK (uci->pucch_fmt %d,uci->type %d.uci->frame %d, uci->subframe %d): n1_pucch0 %d SR_payload %d\n",
frame,subframe,i,
uci->pucch_fmt,uci->type,
uci->frame,uci->subframe,uci->n_pucch_1[0][0],
SR_payload);
#if 1
metric[0] = rx_pucch(eNB,
uci->pucch_fmt,
uci->ue_id,
uci->n_pucch_1[0][0],
0, //n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[0],
frame,
subframe,
pucch1ab_thres,
uci->ue_type
);
if (uci->type==HARQ_SR && metric[0] > metric_SR) SR_payload = 0;
else if (SR_payload == 1) fill_sr_indication(i, eNB,uci->rnti,frame,subframe,metric_SR);
if (uci->type==HARQ_SR && metric[0] <= metric_SR) {
SR_payload = 1;
metric[0] = rx_pucch(eNB,
pucch_format1b,
uci->ue_id,
uci->n_pucch_1_0_sr[0],
0, //n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[0],
frame,
subframe,
pucch1ab_thres,
uci->ue_type
);
}
#else
// if SR was detected, use the n1_pucch from SR
if (SR_payload==1) {
#ifdef DEBUG_PHY_PROC
LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK (%d,%d,%d,%d) format %d with SR\n", eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti, frame, subframe, n1_pucch0, n1_pucch1, n1_pucch2, n1_pucch3, format);
#endif
metric[0] = rx_pucch (eNB, pucch_format1b, i, uci->n_pucch_1_0_sr[0], 0, //n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[0], frame, subframe,
pucch1ab_thres,
uci->ue_type
);
} else { //using assigned pucch resources
#ifdef DEBUG_PHY_PROC
LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d Checking ACK/NAK M=%d (%d,%d,%d,%d) format %d\n", eNB->Mod_id,
eNB->dlsch[UE_id][0]->rnti,
frame, subframe, uci->num_pucch_resources, uci->n_pucch_1[res][0], uci->n_pucch_1[res][1], uci->n_pucch_1[res][2], uci->n_pucch_1[res][3], uci->pucch_fmt);
#endif
for (res = 0; res < uci->num_pucch_resources; res++)
metric[res] = rx_pucch (eNB, uci->pucch_fmt, i, uci->n_pucch_1[res][0], 0, // n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[res], frame, subframe,
pucch1ab_thres,
uci->ue_type
);
for (res=0; res<uci->num_pucch_resources; res++)
metric[res] = rx_pucch(eNB,
uci->pucch_fmt,
i,
uci->n_pucch_1[res][0],
0, // n2_pucch
uci->srs_active, // shortened format
pucch_b0b1[res],
frame,
subframe,
pucch1ab_thres,
uci->ue_type
);
}
#ifdef DEBUG_PHY_PROC
LOG_D(PHY,"RNTI %x type %d SR_payload %d Frame %d Subframe %d pucch_b0b1[0][0] %d pucch_b0b1[0][1] %d pucch_b0b1[1][0] %d pucch_b0b1[1][1] %d \n",
uci->rnti,uci->type,SR_payload,frame,subframe,pucch_b0b1[0][0],pucch_b0b1[0][1],pucch_b0b1[1][0],pucch_b0b1[1][1]);
#endif
#endif
if (SR_payload == 1) { // this implements Table 7.3.1 from 36.213
if (pucch_b0b1[0][0] == 4) { // there isn't a likely transmission
harq_ack[0] = 4; // DTX
} else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1) { // 1/4/7 ACKs
harq_ack[0] = 1;
} else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] != 1) { // 2/5/8 ACKs
harq_ack[0] = 2;
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] == 1) { // 3/6/9 ACKs
harq_ack[0] = 3;
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1) { // 0 ACKs, or at least one DL assignment missed
harq_ack[0] = 0;
}
uci->stat = metric[0];
fill_uci_harq_indication(i, eNB,uci,frame,subframe,harq_ack,2,0xffff); // special_bundling mode
} else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==2)) { // multiplexing + no SR, implement Table 10.1.3-5 (Rel14) for multiplexing with M=2
if (pucch_b0b1[0][0] == 4 ||
pucch_b0b1[1][0] == 4) { // there isn't a likely transmission
harq_ack[0] = 4; // DTX
harq_ack[1] = 6; // NACK/DTX
} else {
if (metric[1]>metric[0]) {
if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
tdd_multiplexing_mask = 0x3;
} else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
tdd_multiplexing_mask = 0x2;
} else {
harq_ack[0] = 4; // DTX
harq_ack[1] = 4; // DTX
}
} else {
if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x1;
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1) {
harq_ack[0] = 2; // NACK
harq_ack[1] = 6; // NACK/DTX
} else {
harq_ack[0] = 4; // DTX
harq_ack[1] = 4; // DTX
}
}
}
uci->stat = max(metric[0],metric[1]);
fill_uci_harq_indication(i, eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
} //else if ((uci->tdd_bundling == 0) && (res==2))
else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==3)) { // multiplexing + no SR, implement Table 10.1.3-6 (Rel14) for multiplexing with M=3
if (harq_ack[0] == 4 ||
harq_ack[1] == 4 ||
harq_ack[2] == 4) { // there isn't a likely transmission
harq_ack[0] = 4; // DTX
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
max_metric = 0;
} else {
max_metric = max(metric[0],max(metric[1],metric[2]));
if (metric[0]==max_metric) {
if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x1;
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1) {
harq_ack[0] = 2; // NACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
} else {
harq_ack[0] = 4; // DTX
harq_ack[1] = 4; // DTX
harq_ack[2] = 4; // DTX
}
} // if (metric[0]==max_metric) {
else if (metric[1]==max_metric) {
if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
harq_ack[2] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x3;
} else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x2;
} else {
harq_ack[0] = 4; // DTX
harq_ack[1] = 4; // DTX
harq_ack[2] = 4; // DTX
}
} // if (metric[1]==max_metric) {
else {
if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
tdd_multiplexing_mask = 0x7;
} else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 1; // ACK
tdd_multiplexing_mask = 0x5;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
tdd_multiplexing_mask = 0x6;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 1; // ACK
tdd_multiplexing_mask = 0x4;
}
}
uci->stat = max_metric;
fill_uci_harq_indication(i, eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
}
} //else if ((uci->tdd_bundling == 0) && (res==3))
else if ((uci->tdd_bundling == 0) && (uci->num_pucch_resources==4)) { // multiplexing + no SR, implement Table 10.1.3-7 (Rel14) for multiplexing with M=4
if (pucch_b0b1[0][0] == 4 ||
pucch_b0b1[1][0] == 4 ||
pucch_b0b1[2][0] == 4 ||
pucch_b0b1[3][0] == 4) { // there isn't a likely transmission
harq_ack[0] = 4; // DTX
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 6; // NACK/DTX
max_metric = 0;
} else {
max_metric = max(metric[0],max(metric[1],max(metric[2],metric[3])));
if (metric[0]==max_metric) {
if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] != 1) {
harq_ack[0] = 2; // NACK
harq_ack[1] = 4; // DTX
harq_ack[2] = 4; // DTX
harq_ack[3] = 4; // DTX
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0x9;
} else if (pucch_b0b1[0][0] == 1 && pucch_b0b1[0][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x1;
} else if (pucch_b0b1[0][0] != 1 && pucch_b0b1[0][1] != 1) {
harq_ack[0] = 2; // NACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 6; // NACK/DTX
}
} else if (metric[1]==max_metric) {
if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0xF;
} else if (pucch_b0b1[1][0] == 1 && pucch_b0b1[1][1] != 1 ) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x3;
} else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] != 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0xE;
} else if (pucch_b0b1[1][0] != 1 && pucch_b0b1[1][1] == 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x2;
}
} else if (metric[2]==max_metric) {
if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
harq_ack[3] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x7;
} else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 1; // ACK
harq_ack[3] = 6; // NACK/DTX
tdd_multiplexing_mask = 0x5;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
harq_ack[0] = 4; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 1; // ACK
harq_ack[3] = 4; // NACK/DTX
tdd_multiplexing_mask = 0x6;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 4; // NACK/DTX
harq_ack[1] = 4; // NACK/DTX
harq_ack[2] = 1; // ACK
harq_ack[3] = 4; // NACK/DTX
tdd_multiplexing_mask = 0x4;
}
} else { // max_metric[3]=max_metric
if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] == 1) {
harq_ack[0] = 1; // ACK
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 1; // ACK
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0xD;
} else if (pucch_b0b1[2][0] == 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 1; // ACK
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0xA;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] == 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 1; // ACK
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0xC;
} else if (pucch_b0b1[2][0] != 1 && pucch_b0b1[2][1] != 1 ) {
harq_ack[0] = 6; // NACK/DTX
harq_ack[1] = 6; // NACK/DTX
harq_ack[2] = 6; // NACK/DTX
harq_ack[3] = 1; // ACK
tdd_multiplexing_mask = 0x8;
}
}
}
uci->stat = max_metric;
fill_uci_harq_indication(i, eNB,uci,frame,subframe,harq_ack,1,tdd_multiplexing_mask); // multiplexing mode
} // else if ((uci->tdd_bundling == 0) && (res==4))
else { // bundling
harq_ack[0] = pucch_b0b1[0][0];
harq_ack[1] = pucch_b0b1[0][1];
uci->stat = metric[0];
LOG_D(PHY,"bundling: (%d,%d), metric %d\n",harq_ack[0],harq_ack[1],uci->stat);
fill_uci_harq_indication(i, eNB,uci,frame,subframe,harq_ack,0,0xffff); // special_bundling mode
}
#ifdef DEBUG_PHY_PROC
LOG_D (PHY, "[eNB %d][PDSCH %x] Frame %d subframe %d ACK/NAK metric 0 %d, metric 1 %d, (%d,%d)\n", eNB->Mod_id,
eNB->dlsch[DLSCH_id][0]->rnti, frame, subframe, metric0, metric1, pucch_b0b1[0], pucch_b0b1[1]);
#endif
}
break;
default:
AssertFatal (1 == 0, "Unsupported UCI type %d\n", uci->type);
break;
}
if (SR_payload == 1) {
LOG_D (PHY, "[eNB %d][SR %x] Frame %d subframe %d Got SR for PUSCH, transmitting to MAC\n", eNB->Mod_id, uci->rnti, frame, subframe);
if (eNB->first_sr[uci->ue_id] == 1) { // this is the first request for uplink after Connection Setup, so clear HARQ process 0 use for Msg4
eNB->first_sr[uci->ue_id] = 0;
eNB->dlsch[uci->ue_id][0]->harq_processes[0]->round = 0;
eNB->dlsch[uci->ue_id][0]->harq_processes[0]->status = SCH_IDLE;
LOG_D (PHY, "[eNB %d][SR %x] Frame %d subframe %d First SR\n", eNB->Mod_id, eNB->ulsch[uci->ue_id]->rnti, frame, subframe);
}
}
}
} // end if ((uci->active == 1) && (uci->frame == frame) && (uci->subframe == subframe)) {
} // end loop for (int i = 0; i < NUMBER_OF_UCI_MAX; i++) {
}
void postDecode(L1_rxtx_proc_t *proc, turboDecode_t *rdata)
{
LTE_eNB_ULSCH_t *ulsch = rdata->eNB->ulsch[rdata->UEid];
LTE_UL_eNB_HARQ_t *ulsch_harq = rdata->ulsch_harq;
PHY_VARS_eNB *eNB=rdata->eNB;
bool decodeSucess=rdata->decodeIterations <= rdata->maxIterations;
ulsch_harq->processedSegments++;
LOG_D(PHY, "processing result of segment: %d, ue %d, processed %d/%d\n",
rdata->segment_r, rdata->UEid, ulsch_harq->processedSegments, rdata->nbSegments);
proc->nbDecode--;
LOG_D(PHY,"remain to decoded in subframe: %d\n", proc->nbDecode);
if (decodeSucess) {
int Fbytes=(rdata->segment_r==0) ? rdata->Fbits>>3 : 0;
int sz=(rdata->Kr>>3) - Fbytes - ((ulsch_harq->C>1)?3:0);
memcpy(ulsch_harq->decodedBytes + rdata->offset, rdata->decoded_bytes + Fbytes, sz);
}
// if this UE segments are all done
if ( rdata->nbSegments == ulsch_harq->processedSegments) {
//compute the expected ULSCH RX power (for the stats)
int i=rdata->UEid;
ulsch_harq->delta_TF = get_hundred_times_delta_IF_eNB(eNB,i,rdata->harq_pid, 0); // 0 means bw_factor is not considered
if (RC.mac != NULL) { /* ulsim does not use RC.mac context. */
if (ulsch_harq->cqi_crc_status == 1) {
fill_ulsch_cqi_indication(eNB,rdata->frame,rdata->subframe,ulsch_harq,ulsch->rnti);
RC.mac[eNB->Mod_id]->UE_info.UE_sched_ctrl[i].cqi_req_flag &= (~(1 << rdata->subframe));
} else {
if(RC.mac[eNB->Mod_id]->UE_info.UE_sched_ctrl[i].cqi_req_flag & (1 << rdata->subframe) ) {
RC.mac[eNB->Mod_id]->UE_info.UE_sched_ctrl[i].cqi_req_flag &= (~(1 << rdata->subframe));
RC.mac[eNB->Mod_id]->UE_info.UE_sched_ctrl[i].cqi_req_timer=30;
LOG_D(PHY,"Frame %d,Subframe %d, We're supposed to get a cqi here. Set cqi_req_timer to 30.\n",rdata->frame,rdata->subframe);
}
}
}
if (check_abort(&ulsch_harq->abort_decode)) {
T(T_ENB_PHY_ULSCH_UE_NACK, T_INT(eNB->Mod_id), T_INT(rdata->frame), T_INT(rdata->subframe), T_INT(ulsch->rnti),
T_INT(rdata->harq_pid));
fill_crc_indication(eNB,i,rdata->frame,rdata->subframe,1); // indicate NAK to MAC
fill_rx_indication(eNB,i,rdata->frame,rdata->subframe); // indicate SDU to MAC
LOG_D(PHY,"[eNB %d][PUSCH %d] frame %d subframe %d UE %d Error receiving ULSCH, round %d/%d (ACK %d,%d)\n",
eNB->Mod_id,rdata->harq_pid,
rdata->frame,rdata->subframe, i,
ulsch_harq->round,
ulsch->Mlimit,
ulsch_harq->o_ACK[0],
ulsch_harq->o_ACK[1]);
if (ulsch_harq->round >= 3) {
ulsch_harq->status = SCH_IDLE;
ulsch_harq->handled = 0;
ulsch->harq_mask &= ~(1 << rdata->harq_pid);
ulsch_harq->round = 0;
}
/* Mark the HARQ process to release it later if max transmission reached
* (see below).
* MAC does not send the max transmission count, we have to deal with it
* locally in PHY.
*/
ulsch_harq->handled = 1;
} // ulsch in error
else if (ulsch_harq->repetition_number == ulsch_harq->total_number_of_repetitions) {
fill_crc_indication(eNB, i, rdata->frame, rdata->subframe, 0); // indicate ACK to MAC
fill_rx_indication(eNB, i, rdata->frame, rdata->subframe); // indicate SDU to MAC
ulsch_harq->status = SCH_IDLE;
ulsch->harq_mask &= ~(1 << rdata->harq_pid);
for (int j = 0; j < NUMBER_OF_ULSCH_MAX; j++)
if (eNB->ulsch_stats[j].rnti == ulsch->rnti) {
eNB->ulsch_stats[j].total_bytes_rx += ulsch_harq->TBS;
for (int aa = 0; aa < eNB->frame_parms.nb_antennas_rx; aa++) {
eNB->ulsch_stats[j].ulsch_power[aa] = dB_fixed_x10(eNB->pusch_vars[rdata->UEid]->ulsch_power[aa]);
eNB->ulsch_stats[j].ulsch_noise_power[aa] = dB_fixed_x10(eNB->pusch_vars[rdata->UEid]->ulsch_noise_power[aa]);
}
break;
}
T (T_ENB_PHY_ULSCH_UE_ACK, T_INT(eNB->Mod_id), T_INT(rdata->frame), T_INT(rdata->subframe), T_INT(ulsch->rnti),
T_INT(rdata->harq_pid));
} // ulsch not in error
if (ulsch_harq->O_ACK>0)
fill_ulsch_harq_indication(eNB,ulsch_harq,ulsch->rnti,rdata->frame,rdata->subframe,ulsch->bundling);
}
}
void pusch_procedures(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc) {
uint32_t i;
uint32_t harq_pid;
uint8_t nPRS;
LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms;
LTE_eNB_ULSCH_t *ulsch;
LTE_UL_eNB_HARQ_t *ulsch_harq;
const int subframe = proc->subframe_rx;
const int frame = proc->frame_rx;
uint32_t harq_pid0 = subframe2harq_pid(&eNB->frame_parms,frame,subframe);
turboDecode_t arr[64] = {0};
task_ans_t ans;
init_task_ans(&ans, 64);
thread_info_tm_t t_info = {.ans = &ans, .cap = 64, .len = 0, .buf = (uint8_t *)arr};
for (i = 0; i < NUMBER_OF_ULSCH_MAX; i++) {
ulsch = eNB->ulsch[i];
if (!ulsch) continue;
if (ulsch->ue_type > 0) harq_pid = 0;
else harq_pid=harq_pid0;
ulsch_harq = ulsch->harq_processes[harq_pid];
if (ulsch->rnti > 0)
LOG_D(PHY,
"eNB->ulsch[%d]->harq_processes[harq_pid:%d] SFN/SF:%04d%d: PUSCH procedures, UE %d/%x ulsch_harq[status:%d "
"SFN/SF:%04d%d handled:%d]\n",
i,
harq_pid,
frame,
subframe,
i,
ulsch->rnti,
ulsch_harq->status,
ulsch_harq->frame,
ulsch_harq->subframe,
ulsch_harq->handled);
if ((ulsch->rnti>0) &&
(ulsch_harq->status == ACTIVE) &&
((ulsch_harq->frame == frame) || (ulsch_harq->repetition_number >1) ) &&
((ulsch_harq->subframe == subframe) || (ulsch_harq->repetition_number >1) ) &&
(ulsch_harq->handled == 0)) {
// UE has ULSCH scheduling
for (int rb=0;
rb<=ulsch_harq->nb_rb;
rb++) {
int rb2 = rb+ulsch_harq->first_rb;
eNB->rb_mask_ul[rb2>>5] |= (1L<<(rb2&31));
}
LOG_D(PHY,"[eNB %d] frame %d, subframe %d: Scheduling ULSCH Reception for UE %d \n", eNB->Mod_id, frame, subframe, i);
nPRS = fp->pusch_config_common.ul_ReferenceSignalsPUSCH.nPRS[subframe<<1];
ulsch->cyclicShift = (ulsch_harq->n_DMRS2 +
fp->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift +
nPRS)%12;
AssertFatal(ulsch_harq->TBS>0,"illegal TBS %d\n",ulsch_harq->TBS);
LOG_D(PHY,
"[eNB %d][PUSCH %d] Frame %d Subframe %d Demodulating PUSCH: dci_alloc %d, rar_alloc %d, round %d, first_rb %d, nb_rb %d, Qm %d, TBS %d, rv %d, cyclic_shift %d (n_DMRS2 %d, cyclicShift_common %d, ), O_ACK %d, beta_cqi %d \n",
eNB->Mod_id,harq_pid,frame,subframe,
ulsch_harq->dci_alloc,
ulsch_harq->rar_alloc,
ulsch_harq->round,
ulsch_harq->first_rb,
ulsch_harq->nb_rb,
ulsch_harq->Qm,
ulsch_harq->TBS,
ulsch_harq->rvidx,
ulsch->cyclicShift,
ulsch_harq->n_DMRS2,
fp->pusch_config_common.ul_ReferenceSignalsPUSCH.cyclicShift,
ulsch_harq->O_ACK,
ulsch->beta_offset_cqi_times8);
start_meas(&eNB->ulsch_demodulation_stats);
rx_ulsch(eNB,proc, i);
stop_meas(&eNB->ulsch_demodulation_stats);
start_meas(&eNB->ulsch_decoding_stats);
ulsch_decoding(eNB,
proc,
i,
0, // control_only_flag
ulsch_harq->V_UL_DAI,
ulsch_harq->nb_rb > 20 ? 1 : 0,
&t_info);
}
else if ((ulsch) &&
(ulsch->rnti>0) &&
(ulsch_harq->status == ACTIVE) &&
(ulsch_harq->frame == frame) &&
(ulsch_harq->subframe == subframe) &&
(ulsch_harq->handled == 1)) {
// this harq process is stale, kill it, this 1024 frames later (10s), consider reducing that
ulsch_harq->status = SCH_IDLE;
ulsch_harq->handled = 0;
ulsch->harq_mask &= ~(1 << harq_pid);
LOG_W (PHY, "Removing stale ULSCH config for UE %x harq_pid %d (harq_mask is now 0x%2.2x)\n", ulsch->rnti, harq_pid, ulsch->harq_mask);
}
} // for (i=0; i<NUMBER_OF_ULSCH_MAX; i++)
const bool decode = proc->nbDecode;
DevAssert(t_info.len == proc->nbDecode);
if (proc->nbDecode > 0) {
if (t_info.len != t_info.cap) {
completed_many_task_ans(t_info.ans, t_info.cap - t_info.len);
}
join_task_ans(t_info.ans);
for (size_t i = 0; i < t_info.len; ++i) {
postDecode(proc, &arr[i]);
}
}
if (decode)
stop_meas(&eNB->ulsch_decoding_stats);
}
void fill_rx_indication(PHY_VARS_eNB *eNB,
int ULSCH_id,
int frame,
int subframe) {
nfapi_rx_indication_pdu_t *pdu;
int timing_advance_update;
int sync_pos;
uint32_t harq_pid;
if (eNB->ulsch[ULSCH_id]->ue_type > 0) harq_pid = 0;
else {
harq_pid = subframe2harq_pid (&eNB->frame_parms,
frame, subframe);
}
pthread_mutex_lock(&eNB->UL_INFO_mutex);
eNB->UL_INFO.rx_ind.sfn_sf = frame<<4| subframe;
eNB->UL_INFO.rx_ind.rx_indication_body.tl.tag = NFAPI_RX_INDICATION_BODY_TAG;
assert(eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus <= NFAPI_RX_IND_MAX_PDU);
pdu = &eNB->UL_INFO.rx_ind.rx_indication_body.rx_pdu_list[eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus];
// pdu->rx_ue_information.handle = eNB->ulsch[ULSCH_id]->handle;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = eNB->ulsch[ULSCH_id]->rnti;
pdu->rx_indication_rel8.tl.tag = NFAPI_RX_INDICATION_REL8_TAG;
pdu->rx_indication_rel8.length = eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->TBS>>3;
pdu->rx_indication_rel8.offset = 1; // DJP - I dont understand - but broken unless 1 ???? 0; // filled in at the end of the UL_INFO formation
assert(pdu->rx_indication_rel8.length <= NFAPI_RX_IND_DATA_MAX);
memcpy(pdu->rx_ind_data,
eNB->ulsch[ULSCH_id]->harq_processes[harq_pid]->decodedBytes,
pdu->rx_indication_rel8.length);
// estimate timing advance for MAC
sync_pos = lte_est_timing_advance_pusch(&eNB->frame_parms, (c16_t **)eNB->pusch_vars[ULSCH_id]->drs_ch_estimates_time);
timing_advance_update = sync_pos;
for (int i=0;i<NUMBER_OF_SCH_STATS_MAX;i++)
if (eNB->ulsch_stats[i].rnti == eNB->ulsch[ULSCH_id]->rnti)
eNB->ulsch_stats[i].timing_offset = sync_pos;
// if (timing_advance_update > 10) { dump_ulsch(eNB,frame,subframe,ULSCH_id); exit(-1);}
// if (timing_advance_update < -10) { dump_ulsch(eNB,frame,subframe,ULSCH_id); exit(-1);}
switch (eNB->frame_parms.N_RB_DL) {
case 6: /* nothing to do */
break;
case 15:
timing_advance_update /= 2;
break;
case 25:
timing_advance_update /= 4;
break;
case 50:
timing_advance_update /= 8;
break;
case 75:
timing_advance_update /= 12;
break;
case 100:
timing_advance_update /= 16;
break;
default:
abort ();
}
// put timing advance command in 0..63 range
timing_advance_update += 31;
if (timing_advance_update < 0)
timing_advance_update = 0;
if (timing_advance_update > 63)
timing_advance_update = 63;
pdu->rx_indication_rel8.timing_advance = timing_advance_update;
// estimate UL_CQI for MAC
int total_power=0, avg_noise_power=0;
for (int i=0;i<eNB->frame_parms.nb_antennas_rx;i++) {
total_power+=(eNB->pusch_vars[ULSCH_id]->ulsch_power[i]);
avg_noise_power+=(eNB->pusch_vars[ULSCH_id]->ulsch_noise_power[i])/eNB->frame_parms.nb_antennas_rx;
}
int SNRtimes10 = dB_fixed_x10(total_power) -
dB_fixed_x10(avg_noise_power);
if (SNRtimes10 < -640)
pdu->rx_indication_rel8.ul_cqi = 0;
else if (SNRtimes10 > 635)
pdu->rx_indication_rel8.ul_cqi = 255;
else
pdu->rx_indication_rel8.ul_cqi = (640 + SNRtimes10) / 5;
LOG_D(PHY,"[PUSCH %d] Frame %d Subframe %d Filling RX_indication with SNR %d (%d,%d,%d), timing_advance %d (update %d,sync_pos %d)\n",
harq_pid,frame,subframe,SNRtimes10,pdu->rx_indication_rel8.ul_cqi,dB_fixed_x10(total_power),dB_fixed_x10(avg_noise_power),pdu->rx_indication_rel8.timing_advance,timing_advance_update,sync_pos);
for (int i=0;i<eNB->frame_parms.nb_antennas_rx;i++)
LOG_D(PHY,"antenna %d: ulsch_power %d, noise_power %d\n",i,dB_fixed_x10(eNB->pusch_vars[ULSCH_id]->ulsch_power[i]),dB_fixed_x10(eNB->pusch_vars[ULSCH_id]->ulsch_noise_power[i]));
eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus++;
eNB->UL_INFO.rx_ind.sfn_sf = frame<<4 | subframe;
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
//-----------------------------------------------------------------------------
/*
* Release the harq process if its round is >= 'after_rounds'
*/
static void do_release_harq(PHY_VARS_eNB *eNB,
int DLSCH_id,
int tb,
uint16_t frame,
uint8_t subframe,
uint16_t mask,
int after_rounds)
//-----------------------------------------------------------------------------
{
LTE_eNB_DLSCH_t *dlsch0 = NULL;
LTE_eNB_DLSCH_t *dlsch1 = NULL;
LTE_DL_eNB_HARQ_t *dlsch0_harq = NULL;
LTE_DL_eNB_HARQ_t *dlsch1_harq = NULL;
int harq_pid;
int subframe_tx;
int frame_tx;
AssertFatal(DLSCH_id != -1, "No existing dlsch context\n");
AssertFatal(DLSCH_id < NUMBER_OF_DLSCH_MAX, "Returned DLSCH_id %d >= %d (NUMBER_OF_DLSCH_MAX)\n", DLSCH_id, NUMBER_OF_DLSCH_MAX);
dlsch0 = eNB->dlsch[DLSCH_id][0];
dlsch1 = eNB->dlsch[DLSCH_id][1];
if (eNB->frame_parms.frame_type == FDD) {
subframe_tx = (subframe + 6) % 10;
frame_tx = ul_ACK_subframe2_dl_frame(&eNB->frame_parms,
frame,
subframe,
subframe_tx);
harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx];
if((harq_pid < 0) || (harq_pid >= dlsch0->Mdlharq)) {
LOG_E(PHY,"illegal harq_pid %d %s:%d\n", harq_pid, __FILE__, __LINE__);
return;
}
dlsch0_harq = dlsch0->harq_processes[harq_pid];
dlsch1_harq = dlsch1->harq_processes[harq_pid];
AssertFatal(dlsch0_harq != NULL, "dlsch0_harq is null\n");
#if T_TRACER
if (after_rounds != -1) {
T(T_ENB_PHY_DLSCH_UE_NACK,
T_INT(0),
T_INT(frame),
T_INT(subframe),
T_INT(dlsch0->rnti),
T_INT(harq_pid));
} else {
T(T_ENB_PHY_DLSCH_UE_ACK,
T_INT(0),
T_INT(frame),
T_INT(subframe),
T_INT(dlsch0->rnti),
T_INT(harq_pid));
}
#endif
if (dlsch0_harq->round >= after_rounds) {
dlsch0_harq->status = SCH_IDLE;
dlsch0->harq_mask &= ~(1 << harq_pid);
}
} else {
/* Release all processes in the bundle that was acked, based on mask */
/* This is at most 4 for multiplexing and 9 for bundling/special bundling */
int M = ul_ACK_subframe2_M(&eNB->frame_parms, subframe);
for (int m=0; m < M; m++) {
subframe_tx = ul_ACK_subframe2_dl_subframe(&eNB->frame_parms,
subframe,
m);
frame_tx = ul_ACK_subframe2_dl_frame(&eNB->frame_parms,
frame,
subframe,
subframe_tx);
if (((1 << m) & mask) > 0) {
harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx];
if((harq_pid < 0) || (harq_pid >= dlsch0->Mdlharq)) {
LOG_E(PHY,"illegal harq_pid %d %s:%d\n", harq_pid, __FILE__, __LINE__);
return;
}
dlsch0_harq = dlsch0->harq_processes[harq_pid];
dlsch1_harq = dlsch1->harq_processes[harq_pid];
AssertFatal(dlsch0_harq != NULL, "Dlsch0_harq is null\n");
#if T_TRACER
if (after_rounds != -1) {
T(T_ENB_PHY_DLSCH_UE_NACK,
T_INT(0),
T_INT(frame),
T_INT(subframe),
T_INT(dlsch0->rnti),
T_INT(harq_pid));
} else {
T(T_ENB_PHY_DLSCH_UE_ACK,
T_INT(0),
T_INT(frame),
T_INT(subframe),
T_INT(dlsch0->rnti),
T_INT(harq_pid));
}
#endif
if (dlsch0_harq->round >= after_rounds) {
dlsch0_harq->status = SCH_IDLE;
if ((dlsch1_harq == NULL) || ((dlsch1_harq != NULL) && (dlsch1_harq->status == SCH_IDLE))) {
dlsch0->harq_mask &= ~(1 << harq_pid);
}
}
} // end if (((1 << m) & mask) > 0)
} // end for (int m=0; m < M; m++)
} // end if TDD
}
static void release_harq(PHY_VARS_eNB *eNB,int DLSCH_id,int tb,uint16_t frame,uint8_t subframe,uint16_t mask, int is_ack) {
/*
* Maximum number of DL transmissions = 4.
* TODO: get the value from configuration.
* If is_ack is true then we release immediately. The value -1 can be used for that.
*/
do_release_harq(eNB, DLSCH_id, tb, frame, subframe, mask, is_ack ? -1 : 4);
}
int getM(PHY_VARS_eNB *eNB,int frame,int subframe) {
int M,Mtx=0;
LTE_eNB_DLSCH_t *dlsch0=NULL,*dlsch1=NULL;
LTE_DL_eNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
int harq_pid;
int subframe_tx,frame_tx;
int m;
M=ul_ACK_subframe2_M(&eNB->frame_parms,
subframe);
for (m=0; m<M; m++) {
subframe_tx = ul_ACK_subframe2_dl_subframe(&eNB->frame_parms,
subframe,
m);
frame_tx = ul_ACK_subframe2_dl_frame(&eNB->frame_parms,frame,
subframe,subframe_tx);
if (dlsch0 == NULL || dlsch1 == NULL) {
LOG_E(PHY, "dlsch0 and/or dlsch1 NULL, getM frame %i, subframe %i\n",frame,subframe);
return Mtx;
}
harq_pid = dlsch0->harq_ids[frame_tx%2][subframe_tx];
if (harq_pid>=0 && harq_pid<dlsch0->Mdlharq) {
dlsch0_harq = dlsch0->harq_processes[harq_pid];
dlsch1_harq = dlsch1->harq_processes[harq_pid];
AssertFatal(dlsch0_harq!=NULL,"dlsch0_harq is null\n");
if (dlsch0_harq->status == ACTIVE||
(dlsch1_harq!=NULL && dlsch1_harq->status == ACTIVE)) Mtx ++;
}
}
return (Mtx);
}
void fill_ulsch_cqi_indication (PHY_VARS_eNB *eNB, uint16_t frame, uint8_t subframe, LTE_UL_eNB_HARQ_t *ulsch_harq, uint16_t rnti) {
pthread_mutex_lock (&eNB->UL_INFO_mutex);
assert(eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis <= NFAPI_CQI_IND_MAX_PDU);
nfapi_cqi_indication_pdu_t *pdu = &eNB->UL_INFO.cqi_ind.cqi_indication_body.cqi_pdu_list[eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis];
nfapi_cqi_indication_raw_pdu_t *raw_pdu = &eNB->UL_INFO.cqi_ind.cqi_indication_body.cqi_raw_pdu_list[eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis];
pdu->instance_length = 0;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = rnti;
if (ulsch_harq->cqi_crc_status != 1)
pdu->cqi_indication_rel9.data_offset = 0;
else
pdu->cqi_indication_rel9.data_offset = 1; // fill in after all cqi_indications have been generated when non-zero
// by default set O to rank 1 value
pdu->cqi_indication_rel9.tl.tag = NFAPI_CQI_INDICATION_REL9_TAG;
pdu->cqi_indication_rel9.length = (ulsch_harq->Or1>>3) + ((ulsch_harq->Or1&7) > 0 ? 1 : 0);
pdu->cqi_indication_rel9.ri[0] = 0;
// if we have RI bits, set them and if rank2 overwrite O
if (ulsch_harq->O_RI > 0) {
pdu->cqi_indication_rel9.ri[0] = ulsch_harq->o_RI[0];
if (ulsch_harq->o_RI[0] == 2)
pdu->cqi_indication_rel9.length = (ulsch_harq->Or2 >> 3) + ((ulsch_harq->Or2 & 7) > 0 ? 1 : 0);
pdu->cqi_indication_rel9.timing_advance = 0;
}
pdu->cqi_indication_rel9.number_of_cc_reported = 1;
pdu->ul_cqi_information.channel = 1; // PUSCH
pdu->ul_cqi_information.tl.tag = NFAPI_UL_CQI_INFORMATION_TAG;
memcpy ((void *) raw_pdu->pdu, ulsch_harq->o, pdu->cqi_indication_rel9.length);
eNB->UL_INFO.cqi_ind.cqi_indication_body.tl.tag = NFAPI_CQI_INDICATION_BODY_TAG;
eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis++;
LOG_D(PHY,"eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis:%d\n", eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis);
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
void fill_ulsch_harq_indication (PHY_VARS_eNB *eNB, LTE_UL_eNB_HARQ_t *ulsch_harq, uint16_t rnti, int frame, int subframe, int bundling) {
int DLSCH_id = find_dlsch(rnti,eNB,SEARCH_EXIST);
if( (DLSCH_id<0) || (DLSCH_id>=NUMBER_OF_DLSCH_MAX) ) {
LOG_E(PHY,"illegal DLSCH_id found!!! rnti %04x DLSCH_id %d\n",rnti,DLSCH_id);
return;
}
//AssertFatal(DLSCH_id>=0,"DLSCH_id doesn't exist\n");
pthread_mutex_lock(&eNB->UL_INFO_mutex);
assert(eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs <= NFAPI_HARQ_IND_MAX_PDU);
nfapi_harq_indication_pdu_t *pdu = &eNB->UL_INFO.harq_ind.harq_indication_body.harq_pdu_list[eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs];
int M;
int i;
eNB->UL_INFO.harq_ind.header.message_id = NFAPI_HARQ_INDICATION;
eNB->UL_INFO.harq_ind.sfn_sf = frame<<4|subframe;
eNB->UL_INFO.harq_ind.harq_indication_body.tl.tag = NFAPI_HARQ_INDICATION_BODY_TAG;
pdu->instance_length = 0; // don't know what to do with this
// pdu->rx_ue_information.handle = handle;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = rnti;
if (eNB->frame_parms.frame_type == FDD) {
pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
pdu->harq_indication_fdd_rel13.mode = 0;
pdu->harq_indication_fdd_rel13.number_of_ack_nack = ulsch_harq->O_ACK;
for (i = 0; i < ulsch_harq->O_ACK; i++) {
AssertFatal (ulsch_harq->o_ACK[i] == 0 || ulsch_harq->o_ACK[i] == 1, "harq_ack[%d] is %d, should be 1,2 or 4\n", i, ulsch_harq->o_ACK[i]);
pdu->harq_indication_fdd_rel13.harq_tb_n[i] = 2 - ulsch_harq->o_ACK[i];
// release DLSCH if needed
release_harq(eNB,DLSCH_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
}
} else { // TDD
M = ul_ACK_subframe2_M (&eNB->frame_parms, subframe);
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.mode = 1-bundling;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = ulsch_harq->O_ACK;
for (i = 0; i < ulsch_harq->O_ACK; i++) {
AssertFatal (ulsch_harq->o_ACK[i] == 0 || ulsch_harq->o_ACK[i] == 1, "harq_ack[%d] is %d, should be 1,2 or 4\n", i, ulsch_harq->o_ACK[i]);
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 2-ulsch_harq->o_ACK[i];
// release DLSCH if needed
/* TODO: review this code, it's most certainly wrong.
* We have to release the proper HARQ in case of ACK or NACK if max retransmission reached.
* Basically, call release_harq with 1 as last argument when ACK and 0 when NACK.
*/
release_harq(eNB,DLSCH_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
if (M==1 && ulsch_harq->O_ACK==1 && ulsch_harq->o_ACK[i] == 1) release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
else if (M==1 && ulsch_harq->O_ACK==2 && ulsch_harq->o_ACK[i] == 1) release_harq(eNB,DLSCH_id,i,frame,subframe,0xffff, ulsch_harq->o_ACK[i] == 1);
else if (M>1 && ulsch_harq->o_ACK[i] == 1) {
// spatial bundling
release_harq(eNB,DLSCH_id,0,frame,subframe,1<<i, ulsch_harq->o_ACK[i] == 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,1<<i, ulsch_harq->o_ACK[i] == 1);
}
}
}
//LOG_E(PHY,"eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs:%d\n", eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs);
eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs++;
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
#define packetError(ConD, fmt, args...) if (!(ConD)) { LOG_E(PHY, fmt, args); goodPacket=false; }
void fill_uci_harq_indication (int UEid, PHY_VARS_eNB *eNB, LTE_eNB_UCI *uci, int frame, int subframe, uint8_t *harq_ack, uint8_t tdd_mapping_mode, uint16_t tdd_multiplexing_mask)
{
int DLSCH_id=find_dlsch(uci->rnti,eNB,SEARCH_EXIST);
//AssertFatal(DLSCH_id>=0,"DLSCH_id doesn't exist rnti:%x\n", uci->rnti);
if (DLSCH_id < 0) {
LOG_E(PHY,"SFN/SF:%04d%d Unable to find rnti:%x do not send HARQ\n", frame, subframe, uci->rnti);
return;
}
pthread_mutex_lock(&eNB->UL_INFO_mutex);
bool goodPacket=true;
nfapi_harq_indication_t *ind = &eNB->UL_INFO.harq_ind;
nfapi_harq_indication_body_t *body = &ind->harq_indication_body;
assert(eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs <= NFAPI_HARQ_IND_MAX_PDU);
nfapi_harq_indication_pdu_t *pdu = &body->harq_pdu_list[eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs];
ind->sfn_sf = frame<<4|subframe;
ind->header.message_id = NFAPI_HARQ_INDICATION;
body->tl.tag = NFAPI_HARQ_INDICATION_BODY_TAG;
pdu->instance_length = 0; // don't know what to do with this
// pdu->rx_ue_information.handle = handle;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = uci->rnti;
// estimate UL_CQI for MAC (from antenna port 0 only)
pdu->ul_cqi_information.tl.tag = NFAPI_UL_CQI_INFORMATION_TAG;
int SNRtimes10 = dB_fixed_x10(uci->stat) - 10 * eNB->measurements.n0_pucch_dB;
if (SNRtimes10 < -100)
LOG_I (PHY, "uci->stat %d \n", uci->stat);
if (SNRtimes10 < -640)
pdu->ul_cqi_information.ul_cqi = 0;
else if (SNRtimes10 > 635)
pdu->ul_cqi_information.ul_cqi = 255;
else
pdu->ul_cqi_information.ul_cqi = (640 + SNRtimes10) / 5;
pdu->ul_cqi_information.channel = 0;
if (eNB->frame_parms.frame_type == FDD) {
if (uci->pucch_fmt == pucch_format1a) {
pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
pdu->harq_indication_fdd_rel13.mode = 0;
pdu->harq_indication_fdd_rel13.number_of_ack_nack = 1;
packetError (harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n", harq_ack[0]);
if (goodPacket) {
pdu->harq_indication_fdd_rel13.harq_tb_n[0] = harq_ack[0];
// release DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
}
} else if (uci->pucch_fmt == pucch_format1b) {
pdu->harq_indication_fdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_FDD_REL13_TAG;
pdu->harq_indication_fdd_rel13.mode = 0;
pdu->harq_indication_fdd_rel13.number_of_ack_nack = 2;
packetError (harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n", harq_ack[0]);
packetError (harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n", harq_ack[1]);
if (goodPacket) {
pdu->harq_indication_fdd_rel13.harq_tb_n[0] = harq_ack[0];
pdu->harq_indication_fdd_rel13.harq_tb_n[1] = harq_ack[1];
// release DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
}
} else
packetError(1==0,"only format 1a/b for now, received %d\n",uci->pucch_fmt);
} else { // TDD
packetError (tdd_mapping_mode == 0 || tdd_mapping_mode == 1 || tdd_mapping_mode == 2, "Illegal tdd_mapping_mode %d\n", tdd_mapping_mode);
if (goodPacket) {
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.mode = tdd_mapping_mode;
LOG_D(PHY,"%s(eNB, uci_harq format %d, rnti:%04x, frame:%d, subframe:%d, tdd_mapping_mode:%d) harq_ack[0]:%d harq_ack[1]:%d\n", __FUNCTION__, uci->pucch_fmt,uci->rnti, frame, subframe,
tdd_mapping_mode,harq_ack[0],harq_ack[1]);
switch (tdd_mapping_mode) {
case 0: // bundling
if (uci->pucch_fmt == pucch_format1a) {
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;
LOG_D(PHY,"bundling, pucch1a, number of ack nack %d\n",pdu->harq_indication_tdd_rel13.number_of_ack_nack);
packetError(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n",harq_ack[0]);
if (goodPacket) {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = harq_ack[0];
// release all bundled DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
}
} else if (uci->pucch_fmt == pucch_format1b) {
pdu->harq_indication_tdd_rel13.number_of_ack_nack = 2;
packetError(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n",harq_ack[0]);
packetError(harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n",harq_ack[1]);
if (goodPacket) {
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = harq_ack[0];
pdu->harq_indication_tdd_rel13.harq_data[1].bundling.value_0 = harq_ack[1];
// release all DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
}
}
break;
case 1: // multiplexing
packetError (uci->pucch_fmt == pucch_format1b, "uci->pucch_format %d is not format1b\n", uci->pucch_fmt);
if (goodPacket) {
if (uci->num_pucch_resources == 1 && uci->pucch_fmt == pucch_format1a) {
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;
packetError(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[0] == 4, "harq_ack[0] is %d, should be 1,2 or 4\n",harq_ack[0]);
if (goodPacket) {
pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
// release all DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
}
} else if (uci->num_pucch_resources == 1 && uci->pucch_fmt == pucch_format1b) {
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = 2;
packetError(harq_ack[0] == 1 || harq_ack[0] == 2 || harq_ack[1] == 4, "harq_ack[0] is %d, should be 0,1 or 4\n",harq_ack[0]);
packetError(harq_ack[1] == 1 || harq_ack[1] == 2 || harq_ack[1] == 4, "harq_ack[1] is %d, should be 0,1 or 4\n",harq_ack[1]);
if (goodPacket) {
pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
pdu->harq_indication_tdd_rel13.harq_data[1].multiplex.value_0 = harq_ack[1];
// release all DLSCH if needed
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, harq_ack[0] == 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, harq_ack[1] == 1);
}
} else { // num_pucch_resources (M) > 1
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = uci->num_pucch_resources;
pdu->harq_indication_tdd_rel13.harq_data[0].multiplex.value_0 = harq_ack[0];
pdu->harq_indication_tdd_rel13.harq_data[1].multiplex.value_0 = harq_ack[1];
if (uci->num_pucch_resources == 3) pdu->harq_indication_tdd_rel13.harq_data[2].multiplex.value_0 = harq_ack[2];
if (uci->num_pucch_resources == 4) pdu->harq_indication_tdd_rel13.harq_data[3].multiplex.value_0 = harq_ack[3];
// spatial-bundling in this case so release both HARQ if necessary
release_harq(eNB,DLSCH_id,0,frame,subframe,tdd_multiplexing_mask, 1 /* force release? previous code was unconditional */);
release_harq(eNB,DLSCH_id,1,frame,subframe,tdd_multiplexing_mask, 1 /* force release? previous code was unconditional */);
}
break;
case 2: // special bundling (SR collision)
pdu->harq_indication_tdd_rel13.tl.tag = NFAPI_HARQ_INDICATION_TDD_REL13_TAG;
pdu->harq_indication_tdd_rel13.number_of_ack_nack = 1;
pdu->harq_indication_tdd_rel13.mode = 0;
int tdd_config5_sf2scheds=0;
if (eNB->frame_parms.tdd_config==5) tdd_config5_sf2scheds = getM(eNB,frame,subframe);
switch (harq_ack[0]) {
case 0:
case 4:
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
/* TODO: release_harq here? this whole code looks suspicious */
break;
case 1: // check if M=1,4,7
if (uci->num_pucch_resources == 1 || uci->num_pucch_resources == 4 ||
tdd_config5_sf2scheds == 1 || tdd_config5_sf2scheds == 4 || tdd_config5_sf2scheds == 7) {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, 1);
} else {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
}
break;
case 2: // check if M=2,5,8
if (uci->num_pucch_resources == 2 || tdd_config5_sf2scheds == 2 ||
tdd_config5_sf2scheds == 5 || tdd_config5_sf2scheds == 8) {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, 1);
} else {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
}
break;
case 3: // check if M=3,6,9
if (uci->num_pucch_resources == 3 || tdd_config5_sf2scheds == 3 ||
tdd_config5_sf2scheds == 6 || tdd_config5_sf2scheds == 9) {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 1;
release_harq(eNB,DLSCH_id,0,frame,subframe,0xffff, 1);
release_harq(eNB,DLSCH_id,1,frame,subframe,0xffff, 1);
} else {
pdu->harq_indication_tdd_rel13.harq_data[0].bundling.value_0 = 0;
}
break;
}
break;
}
}
}
} //TDD
if (goodPacket) {
eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs++;
LOG_D(PHY,"Incremented eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs:%d\n", eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs);
} else {
LOG_W(PHY,"discarded a PUCCH because the decoded values are impossible\n");
}
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
void fill_crc_indication (PHY_VARS_eNB *eNB, int ULSCH_id, int frame, int subframe, uint8_t crc_flag) {
pthread_mutex_lock(&eNB->UL_INFO_mutex);
assert(eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs <= NFAPI_CRC_IND_MAX_PDU);
nfapi_crc_indication_pdu_t *pdu = &eNB->UL_INFO.crc_ind.crc_indication_body.crc_pdu_list[eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs];
eNB->UL_INFO.crc_ind.sfn_sf = frame<<4 | subframe;
eNB->UL_INFO.crc_ind.header.message_id = NFAPI_CRC_INDICATION;
eNB->UL_INFO.crc_ind.crc_indication_body.tl.tag = NFAPI_CRC_INDICATION_BODY_TAG;
pdu->instance_length = 0; // don't know what to do with this
// pdu->rx_ue_information.handle = handle;
pdu->rx_ue_information.tl.tag = NFAPI_RX_UE_INFORMATION_TAG;
pdu->rx_ue_information.rnti = eNB->ulsch[ULSCH_id]->rnti;
pdu->crc_indication_rel8.tl.tag = NFAPI_CRC_INDICATION_REL8_TAG;
pdu->crc_indication_rel8.crc_flag = crc_flag;
eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs++;
//LOG_D(PHY, "%s() rnti:%04x crcs:%d crc_flag:%d\n", __FUNCTION__, pdu->rx_ue_information.rnti, eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs, crc_flag);
pthread_mutex_unlock(&eNB->UL_INFO_mutex);
}
void phy_procedures_eNB_uespec_RX(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc) {
//RX processing for ue-specific resources (i
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
const int subframe = proc->subframe_rx;
const int frame = proc->frame_rx;
/* TODO: use correct rxdata */
T (T_ENB_PHY_INPUT_SIGNAL, T_INT (eNB->Mod_id), T_INT (frame), T_INT (subframe), T_INT (0),
T_BUFFER (&eNB->RU_list[0]->common.rxdata[0][subframe * eNB->frame_parms.samples_per_tti], eNB->frame_parms.samples_per_tti * 4));
if ((fp->frame_type == TDD) && (subframe_select(fp,subframe)!=SF_UL)) return;
T(T_ENB_PHY_UL_TICK, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe));
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_UESPEC, 1 );
LOG_D (PHY, "[eNB %d] Frame %d: Doing phy_procedures_eNB_uespec_RX(%d)\n", eNB->Mod_id, frame, subframe);
eNB->rb_mask_ul[0] = 0;
eNB->rb_mask_ul[1] = 0;
eNB->rb_mask_ul[2] = 0;
eNB->rb_mask_ul[3] = 0;
// Fix me here, these should be locked
eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus = 0;
eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs = 0;
// Call SRS first since all others depend on presence of SRS or lack thereof
srs_procedures (eNB, proc);
eNB->first_run_I0_measurements = 0;
uci_procedures (eNB, proc);
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) { // If PNF or monolithic
pusch_procedures(eNB,proc);
}
lte_eNB_I0_measurements (eNB, subframe, 0, eNB->first_run_I0_measurements);
// clear unused statistics after 2 seconds
for (int i=0;i<NUMBER_OF_SCH_STATS_MAX;i++) {
if (eNB->ulsch_stats[i].frame <= frame) {
if ((eNB->ulsch_stats[i].frame + 200) < frame) memset(&eNB->ulsch_stats[i],0,sizeof(eNB->ulsch_stats[i]));
}
else {
if (eNB->ulsch_stats[i].frame + 200 < (frame+1024)) memset(&eNB->ulsch_stats[i],0,sizeof(eNB->ulsch_stats[i]));
}
if (eNB->uci_stats[i].frame <= frame) {
if ((eNB->uci_stats[i].frame + 200) < frame) memset(&eNB->uci_stats[i],0,sizeof(eNB->uci_stats[i]));
}
else {
if (eNB->uci_stats[i].frame + 200 < (frame+1024)) memset(&eNB->uci_stats[i],0,sizeof(eNB->uci_stats[i]));
}
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_ENB_RX_UESPEC, 0 );
}
void release_rnti_of_phy(module_id_t mod_id) {
int i,j;
int CC_id;
rnti_t rnti;
PHY_VARS_eNB *eNB_PHY = NULL;
LTE_eNB_ULSCH_t *ulsch = NULL;
LTE_eNB_DLSCH_t *dlsch = NULL;
for(i = 0; i< release_rntis.number_of_TLVs; i++) {
for (CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
eNB_PHY = RC.eNB[mod_id][CC_id];
rnti = release_rntis.ue_release_request_TLVs_list[i].rnti;
for (j=0; j<NUMBER_OF_DLSCH_MAX; j++) {
dlsch = eNB_PHY->dlsch[j][0];
if((dlsch != NULL) && (dlsch->rnti == rnti)) {
LOG_I(PHY, "clean_eNb_dlsch dlsch[%d] UE %x \n", j, rnti);
clean_eNb_dlsch(dlsch);
}
}
for (j=0;j<NUMBER_OF_ULSCH_MAX; j++) {
ulsch = eNB_PHY->ulsch[j];
if((ulsch != NULL) && (ulsch->rnti == rnti)) {
LOG_I(PHY, "clean_eNb_ulsch ulsch[%d] UE %x\n", j, rnti);
clean_eNb_ulsch(ulsch);
for (j=0;j<NUMBER_OF_ULSCH_MAX;j++)
if (eNB_PHY->ulsch_stats[j].rnti == rnti) {eNB_PHY->ulsch_stats[j].rnti=0; break;}
}
}
for(j=0; j<NUMBER_OF_UCI_MAX; j++) {
if(eNB_PHY->uci_vars[j].rnti == rnti) {
LOG_I(PHY, "clean eNb uci_vars[%d] UE %x \n",j, rnti);
memset(&eNB_PHY->uci_vars[i],0,sizeof(LTE_eNB_UCI));
}
}
}
}
memset(&release_rntis, 0, sizeof(nfapi_ue_release_request_body_t));
}
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