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fembms: - FeMBMS 36.213 eNB procedures v14.2

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- FeMBMS 36.213 UE procedures v14.2
	- Implementation of OFDM encoding for FeMBMS/eNB v14.2

Signed-off-by: Javier Morgade <javier.morgade@ieee.org>
This commit is contained in:
Javier Morgade
2020-07-21 15:16:49 +02:00
parent 5eb6dac7db
commit 0bef84d0a5
3 changed files with 198 additions and 15 deletions
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openair1/SCHED/phy_procedures_lte_eNb.c
+131 -7
View File
@@ -20,12 +20,12 @@
*/
/*! \file phy_procedures_lte_eNB.c
* \brief Implementation of eNB procedures from 36.213 LTE specifications
* \author R. Knopp, F. Kaltenberger, N. Nikaein, X. Foukas
* \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
* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr,navid.nikaein@eurecom.fr, x.foukas@sms.ed.ac.uk, javier.morgade@ieee.org
* \note
* \warning
*/
@@ -122,12 +122,32 @@ lte_subframe_t get_subframe_direction(uint8_t Mod_id,uint8_t CC_id,uint8_t subfr
}
#ifdef MBMS_NFAPI_SCHEDULER
void pmch_procedures(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc) {
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
generate_pilots_slot (eNB, eNB->common_vars.txdataF, AMP, subframe << 1, 1);
if(eNB->dlsch_MCH->active==1)
generate_mch (eNB, proc,NULL/*, eNB->dlsch_MCH->harq_processes[0]->pdu*/);
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;
}
#else
@@ -171,6 +191,80 @@ void pmch_procedures(PHY_VARS_eNB *eNB,L1_rxtx_proc_t *proc) {
}
#endif
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_I(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;
}
T(T_ENB_PHY_MIB, T_INT(eNB->Mod_id), T_INT(frame), T_INT(subframe),
T_BUFFER(pbch_pdu, 3));
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;
@@ -417,12 +511,30 @@ void phy_procedures_eNB_TX(PHY_VARS_eNB *eNB,
}
if (NFAPI_MODE==NFAPI_MONOLITHIC || NFAPI_MODE==NFAPI_MODE_PNF) {
if (is_fembms_pmch_subframe(frame,subframe,fp)) {
#ifdef MBMS_NFAPI_SCHEDULER
pmch_procedures(eNB,proc,1);
LOG_D(MAC,"frame %d, subframe %d -> PMCH\n",frame,subframe);
return;
#endif
}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)) {
#ifdef MBMS_NFAPI_SCHEDULER
pmch_procedures(eNB,proc,0);
#else
pmch_procedures(eNB,proc);
#endif
} 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
@@ -508,6 +620,18 @@ void phy_procedures_eNB_TX(PHY_VARS_eNB *eNB,
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)) {
#ifdef MBMS_NFAPI_SCHEDULER
pmch_procedures(eNB,proc,1);
return;
#endif
}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
openair1/SCHED/ru_procedures.c
+23 -2
View File
@@ -41,6 +41,17 @@
* \warning
*/
/*! \function feptx0
* \brief Implementation of ofdm encoding for FeMBMS profile in one eNB
* \author J. Morgade
* \date 2020
* \version 0.1
* \email: javier.morgade@ieee.org
* \note
* \warning
*/
#include "PHY/defs_eNB.h"
#include "PHY/phy_extern.h"
@@ -76,7 +87,7 @@ void feptx0(RU_t *ru,
int slot_sizeF = (fp->ofdm_symbol_size) * ((fp->Ncp==1) ? 6 : 7);
int subframe = ru->proc.tti_tx;
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPTX_OFDM+slot , 1 );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_RU_FEPTX_OFDM+(slot&1) , 1 );
slot_offset = slot*(fp->samples_per_tti>>1); //slot_offset = subframe*fp->samples_per_tti + (slot*(fp->samples_per_tti>>1));
@@ -91,7 +102,17 @@ void feptx0(RU_t *ru,
fp->nb_prefix_samples,
CYCLIC_PREFIX);
} else {
if(is_pmch_subframe(ru->proc.frame_tx,subframe,fp)){
if(is_fembms_pmch_subframe(ru->proc.frame_tx,subframe,fp)){
if((slot&1)==0){//just use one slot chance
PHY_ofdm_mod(&ru->common.txdataF_BF[aa][(slot&1)*slot_sizeF],
(int*)&ru->common.txdata[aa][slot_offset],
fp->ofdm_symbol_size_khz_1dot25,
1,
fp->ofdm_symbol_size_khz_1dot25>>2,
CYCLIC_PREFIX);
LOG_D(HW,"Generating PMCH FeMBMS TX subframe %d %d\n",subframe,fp->ofdm_symbol_size_khz_1dot25);
}
} else if(is_pmch_subframe(ru->proc.frame_tx,subframe,fp)){
if ((slot&1) == 0) {//just use one slot chance
normal_prefix_mod(&ru->common.txdataF_BF[aa][(slot&1)*slot_sizeF],
(int*)&ru->common.txdata[aa][slot_offset],
openair1/SCHED_UE/phy_procedures_lte_ue.c
+44 -6
View File
@@ -2383,10 +2383,12 @@ void ue_pbch_procedures(uint8_t eNB_id,
if (pbch_phase>=4)
pbch_phase=0;
if((ue->frame_parms.FeMBMS_active == 0)|| is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms) || first_run) {
for (pbch_trials=0; pbch_trials<4; pbch_trials++) {
//for (pbch_phase=0;pbch_phase<4;pbch_phase++) {
//LOG_I(PHY,"[UE %d] Frame %d, Trying PBCH %d (NidCell %d, eNB_id %d)\n",ue->Mod_id,frame_rx,pbch_phase,ue->frame_parms.Nid_cell,eNB_id);
if(is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms)) {
if(is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms) || ue->frame_parms.FeMBMS_active) {
pbch_tx_ant = rx_pbch_fembms(&ue->common_vars,
ue->pbch_vars[eNB_id],
&ue->frame_parms,
@@ -2431,9 +2433,10 @@ void ue_pbch_procedures(uint8_t eNB_id,
ue->pbch_vars[eNB_id]->pdu_errors_conseq = 0;
if(is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms)) {
if(is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms) || ue->frame_parms.FeMBMS_active) {
frame_tx = (int)((ue->pbch_vars[eNB_id]->decoded_output[2]&31)<<1);
frame_tx += ue->pbch_vars[eNB_id]->decoded_output[1]>>7;
frame_tx = frame_tx<<4;
frame_tx +=4*pbch_phase;
} else {
frame_tx = (((int)(ue->pbch_vars[eNB_id]->decoded_output[2]&0x03))<<8);
@@ -2501,6 +2504,17 @@ void ue_pbch_procedures(uint8_t eNB_id,
ue->frame_parms.phich_config_common.phich_duration,
ue->frame_parms.phich_config_common.phich_resource);
}
LOG_I(PHY,"[UE %d] frame %d, subframe %d, Received PBCH (MIB): nb_antenna_ports_eNB %d, tx_ant %d, frame_tx %d. N_RB_DL %d, phich_duration %d, phich_resource %d/6!\n",
ue->Mod_id,
frame_rx,
subframe_rx,
ue->frame_parms.nb_antenna_ports_eNB,
pbch_tx_ant,
frame_tx,
ue->frame_parms.N_RB_DL,
ue->frame_parms.phich_config_common.phich_duration,
ue->frame_parms.phich_config_common.phich_resource);
} else {
if (LOG_DUMPFLAG(DEBUG_UE_PHYPROC)) {
LOG_E(PHY,"[UE %d] frame %d, subframe %d, Error decoding PBCH!\n",
@@ -2533,6 +2547,8 @@ void ue_pbch_procedures(uint8_t eNB_id,
ue->pbch_vars[eNB_id]->pdu_errors_conseq);
}
} //if((ue->frame_parms.FeMBMS_active == 0)|| is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms) || first_run)
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PBCH_PROCEDURES, VCD_FUNCTION_OUT);
}
@@ -2691,6 +2707,7 @@ int ue_pdcch_procedures(uint8_t eNB_id,
if (LOG_DEBUGFLAG(DEBUG_UE_PHYPROC)) {
LOG_D(PHY,"[UE %d] subframe %d: Found rnti %x, format 1%s, dci_cnt %d\n",ue->Mod_id,subframe_rx,dci_alloc_rx[i].rnti,dci_alloc_rx[i].format==format1A?"A":"C",i);
}
LOG_W(PHY,"[UE %d] subframe %d: Found rnti %x, format 1%s, dci_cnt %d\n",ue->Mod_id,subframe_rx,dci_alloc_rx[i].rnti,dci_alloc_rx[i].format==format1A?"A":"C",i);
if (generate_ue_dlsch_params_from_dci(frame_rx,
subframe_rx,
@@ -2709,7 +2726,7 @@ int ue_pdcch_procedures(uint8_t eNB_id,
ue->transmission_mode[eNB_id]<7?0:ue->transmission_mode[eNB_id],
0)==0) {
ue->dlsch_SI_received[eNB_id]++;
LOG_D(PHY,"[UE %d] Frame %d, subframe %d : Generate UE DLSCH SI_RNTI format 1%s\n",ue->Mod_id,frame_rx,subframe_rx,dci_alloc_rx[i].format==format1A?"A":"C");
LOG_W(PHY,"[UE %d] Frame %d, subframe %d : Generate UE DLSCH SI_RNTI format 1%s\n",ue->Mod_id,frame_rx,subframe_rx,dci_alloc_rx[i].format==format1A?"A":"C");
//dump_dci(&ue->frame_parms, &dci_alloc_rx[i]);
}
} else if ((dci_alloc_rx[i].rnti == P_RNTI) &&
@@ -2877,10 +2894,19 @@ void ue_pmch_procedures(PHY_VARS_UE *ue,
int l;
int ret=0;
if (is_pmch_subframe(frame_rx,subframe_rx,&ue->frame_parms)) {
if (is_pmch_subframe(frame_rx,subframe_rx,&ue->frame_parms) || fembms_flag) {
// LOG_D(PHY,"ue calling pmch subframe ..\n ");
LOG_D(PHY,"[UE %d] Frame %d, subframe %d: Querying for PMCH demodulation\n",
ue->Mod_id,frame_rx,subframe_rx);
if(fembms_flag)
pmch_mcs = ue_query_mch_fembms(ue->Mod_id,
CC_id,
frame_rx,
subframe_rx,
eNB_id,
&sync_area,
&mcch_active);
else
pmch_mcs = ue_query_mch(ue->Mod_id,
CC_id,
frame_rx,
@@ -2960,6 +2986,7 @@ void ue_pmch_procedures(PHY_VARS_UE *ue,
LOG_D(PHY,"start turbo decode for MCH %d.%d --> Nl %d \n", frame_rx, subframe_rx, ue->dlsch_MCH[0]->harq_processes[0]->Nl);
LOG_D(PHY,"start turbo decode for MCH %d.%d --> G %d \n", frame_rx, subframe_rx, ue->dlsch_MCH[0]->harq_processes[0]->G);
LOG_D(PHY,"start turbo decode for MCH %d.%d --> Kmimo %d \n", frame_rx, subframe_rx, ue->dlsch_MCH[0]->Kmimo);
ret = dlsch_decoding(ue,
ue->pdsch_vars_MCH[ue->current_thread_id[subframe_rx]][0]->llr[0],
&ue->frame_parms,
@@ -3007,14 +3034,14 @@ void ue_pmch_procedures(PHY_VARS_UE *ue,
// if (subframe_rx==9)
// mac_xface->macphy_exit("Why are we exiting here?");
} else { // decoding successful
LOG_D(PHY,"[UE %d] Frame %d, subframe %d: PMCH OK (%d,%d), passing to L2 (TBS %d, iter %d,G %d)\n",
LOG_I(PHY,"[UE %d] Frame %d, subframe %d: PMCH OK (%d,%d), passing to L2 (TBS %d, iter %d,G %d) ret %d\n",
ue->Mod_id,
frame_rx,subframe_rx,
ue->dlsch_mcch_errors[sync_area][0],
ue->dlsch_mtch_errors[sync_area][0],
ue->dlsch_MCH[0]->harq_processes[0]->TBS>>3,
ue->dlsch_MCH[0]->max_turbo_iterations,
ue->dlsch_MCH[0]->harq_processes[0]->G);
ue->dlsch_MCH[0]->harq_processes[0]->G,ret);
ue_send_mch_sdu(ue->Mod_id,
CC_id,
frame_rx,
@@ -3022,6 +3049,8 @@ void ue_pmch_procedures(PHY_VARS_UE *ue,
ue->dlsch_MCH[0]->harq_processes[0]->TBS>>3,
eNB_id,// not relevant in eMBMS context
sync_area);
//dump_mch(ue,0,ue->dlsch_MCH[0]->harq_processes[0]->G,subframe_rx);
//exit_fun("nothing to add");
if (mcch_active == 1)
ue->dlsch_mcch_received[sync_area][0]++;
@@ -4429,6 +4458,15 @@ int phy_procedures_UE_RX(PHY_VARS_UE *ue,
ue_pmch_procedures(ue,proc,eNB_id,abstraction_flag,1);
return 0;
} else { // this gets closed at end
if (is_fembms_cas_subframe(frame_rx,subframe_rx,&ue->frame_parms) || is_fembms_nonMBSFN_subframe(frame_rx,subframe_rx,&ue->frame_parms) ) {
l=0;
slot_fep(ue,
l,
subframe_rx<<1,
0,
0,
0);
}
pmch_flag = is_pmch_subframe(frame_rx,subframe_rx,&ue->frame_parms) ? 1 : 0;
if (do_pdcch_flag) {