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Commit ba433236 authored by Raymond Knopp's avatar Raymond Knopp
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SLDCH RX

parent 2646250f
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Showing with 83 additions and 137 deletions
openair1/PHY/INIT/defs.h
View file @ ba433236
......@@ -324,6 +324,15 @@ void phy_config_dedicated_eNB_step2(PHY_VARS_eNB *phy_vars_eNB);
*/
int phy_init_secsys_eNB(PHY_VARS_eNB *phy_vars_eNb);
/*!
\fn void phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx)
\brief Configure PHY Sidelink parameters .
@param Mod_id
@param sldch_rx Sidelink discovery channel configuration
@param slsch_rx Sidelink Control/Shared channel configuration
*/
int phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx);
void free_lte_top(void);
void init_lte_top(LTE_DL_FRAME_PARMS *lte_frame_parms);
......
openair1/PHY/INIT/lte_init_ue.c
View file @ ba433236
......@@ -627,6 +627,16 @@ void phy_init_lte_ue__PDSCH( LTE_UE_PDSCH* const pdsch, const LTE_DL_FRAME_PARMS
}
}
int phy_config_SL(int Mod_id,SLDCH_t *sldch_rx,SLSCH_t *slsch_rx) {
PHY_VARS_UE *ue=PHY_vars_UE_g[Mod_id][0];
memcpy((void*)&ue->sldch_rx,(void*)sldch_rx,sizeof(SLDCH_t));
memcpy((void*)&ue->slsch_rx,(void*)slsch_rx,sizeof(SLSCH_t));
return(0);
}
int init_lte_ue_signal(PHY_VARS_UE *ue,
int nb_connected_eNB,
uint8_t abstraction_flag)
......
openair1/PHY/LTE_TRANSPORT/sldch.c
View file @ ba433236
......@@ -32,12 +32,11 @@
#ifndef __LTE_TRANSPORT_SLSS__C__
#define __LTE_TRANSPORT_SLSS__C__
#include "PHY/defs.h"
#include "PHY/LTE_TRANSPORT/proto.h"
void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subframe_rx,int npsdch,int nprb,int rvidx) {
int Nsymb = 7;
SLDCH_t *sldch = ue->sldch;
int16_t **rxdataF_ext = (int16_t**)ue->pusch_sldch->rxdataF_ext;
int16_t **drs_ch_estimates = (int16_t**)ue->pusch_sldch->drs_ch_estimates;
int16_t **rxdataF_comp = (int16_t**)ue->pusch_sldch->rxdataF_comp;
......@@ -49,11 +48,11 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
int32_t avgU[2];
LOG_I(PHY,"sldch_decoding %d.%d\n",frame_rx,subframe_rx);
LOG_I(PHY,"sldch_decoding %d.%d npsdch %d rvidx %d sl_fep_done %d\n",frame_rx,subframe_rx,npsdch,rvidx,proc->sl_fep_done);
// slot FEP
if (ue->sl_fep_done == 0) {
ue->sl_fep_done = 1;
if (proc->sl_fep_done == 0) {
proc->sl_fep_done = 1;
RU_t ru_tmp;
memset((void*)&ru_tmp,0,sizeof(RU_t));
......@@ -64,7 +63,6 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
ru_tmp.common.rxdataF = (int32_t**)rxdataF;
ru_tmp.nb_rx = ue->frame_parms.nb_antennas_rx;
remove_7_5_kHz(&ru_tmp,(subframe_rx<<1));
remove_7_5_kHz(&ru_tmp,(subframe_rx<<1)+1);
......@@ -75,6 +73,10 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
slot_fep_ul(&ru_tmp,l,(subframe_rx<<1)+1,0);
}
}
LOG_I(PHY,"sldch_decoding: FEP for npsdch %d rvidx %d rx signal energy %d dB %d dB\n",npsdch,rvidx,
dB_fixed(signal_energy(&ue->common_vars.rxdata[0][ue->frame_parms.samples_per_tti*subframe_rx],ue->frame_parms.samples_per_tti)),
dB_fixed(signal_energy(ue->sl_rxdata_7_5kHz,ue->frame_parms.samples_per_tti)));
for (int l=0; l<Nsymb; l++) {
ulsch_extract_rbs_single((int32_t**)rxdataF,
(int32_t**)rxdataF_ext,
......@@ -114,7 +116,7 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
0, //v
0, //cyclic_shift
3,
1, // interpolation
0, // interpolation
0);
lte_ul_channel_estimation(&ue->frame_parms,
......@@ -128,14 +130,14 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
0,//v
0,//cyclic_shift,
10,
1, // interpolation
0, // interpolation
0);
ulsch_channel_level(drs_ch_estimates,
&ue->frame_parms,
avgU,
2);
#ifdef PSDCH_DEBUG
write_output("drs_ext0.m","drsest0",drs_ch_estimates[0],ue->frame_parms.N_RB_UL*12*14,1,1);
#endif
......@@ -149,96 +151,8 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
log2_maxh = (log2_approx(avgs)/2)+ log2_approx(ue->frame_parms.nb_antennas_rx-1)+4;
LOG_I(PHY,"sldch_decoding %d.%d npsdch %d log2_maxh %d\n",frame_rx,subframe_rx,npsdch);
for (int l=0; l<(Nsymb<<1)-1; l++) {
if (((ue->frame_parms.Ncp == 0) && ((l==3) || (l==10)))|| // skip pilots
((ue->frame_parms.Ncp == 1) && ((l==2) || (l==8)))) {
l++;
}
ulsch_channel_compensation(
rxdataF_ext,
drs_ch_estimates,
ul_ch_mag,
NULL,
rxdataF_comp,
&ue->frame_parms,
l,
2, //Qm
2, //nb_rb
log2_maxh); // log2_maxh+I0_shift
if (ue->frame_parms.nb_antennas_rx > 1)
ulsch_detection_mrc(&ue->frame_parms,
rxdataF_comp,
ul_ch_mag,
NULL,
l,
2 //nb_rb
);
freq_equalization(&ue->frame_parms,
rxdataF_comp,
ul_ch_mag,
NULL,
l,
24,
2);
}
lte_idft(&ue->frame_parms,
rxdataF_comp[0],
24);
#ifdef PSDCH_DEBUG
write_output("sldch_rxF_comp.m","sldchrxF_comp",rxdataF_comp[0],ue->frame_parms.N_RB_UL*12*14,1,1);
#endif
lte_ul_channel_estimation(&ue->frame_parms,
(int32_t**)drs_ch_estimates,
(int32_t**)NULL,
(int32_t**)rxdataF_ext,
2,
frame_rx,
subframe_rx,
0, //u
0, //v
0, //cyclic_shift
3,
1, // interpolation
0);
lte_ul_channel_estimation(&ue->frame_parms,
(int32_t**)drs_ch_estimates,
(int32_t**)NULL,
(int32_t**)rxdataF_ext,
2,
frame_rx,
subframe_rx,
0,//u
0,//v
0,//cyclic_shift,
10,
1, // interpolation
0);
ulsch_channel_level(drs_ch_estimates,
&ue->frame_parms,
avgU,
2);
#ifdef PSDCH_DEBUG
write_output("drs_ext0.m","drsest0",drs_ch_estimates[0],ue->frame_parms.N_RB_UL*12*14,1,1);
#endif
avgs = 0;
for (int aarx=0; aarx<ue->frame_parms.nb_antennas_rx; aarx++)
avgs = cmax(avgs,avgU[aarx]);
// log2_maxh = 4+(log2_approx(avgs)/2);
log2_maxh = (log2_approx(avgs)/2)+ log2_approx(ue->frame_parms.nb_antennas_rx-1)+4;
for (int l=0; l<(Nsymb<<1)-1; l++) {
......@@ -249,11 +163,11 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
}
ulsch_channel_compensation(
rxdataF_ext,
drs_ch_estimates,
ul_ch_mag,
(int32_t**)rxdataF_ext,
(int32_t**)drs_ch_estimates,
(int32_t**)ul_ch_mag,
NULL,
rxdataF_comp,
(int32_t**)rxdataF_comp,
&ue->frame_parms,
l,
2, //Qm
......@@ -262,16 +176,16 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
if (ue->frame_parms.nb_antennas_rx > 1)
ulsch_detection_mrc(&ue->frame_parms,
rxdataF_comp,
ul_ch_mag,
(int32_t**)rxdataF_comp,
(int32_t**)ul_ch_mag,
NULL,
l,
2 //nb_rb
);
freq_equalization(&ue->frame_parms,
rxdataF_comp,
ul_ch_mag,
(int32_t**)rxdataF_comp,
(int32_t**)ul_ch_mag,
NULL,
l,
24,
......@@ -298,17 +212,17 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
}
ulsch_qpsk_llr(&ue->frame_parms,
rxdataF_comp,
(int32_t *)ue->slsch_ulsch_llr,
(int32_t **)rxdataF_comp,
(int16_t *)ue->slsch_ulsch_llr,
l,
2,
(int32_t *)&llrp);
&llrp);
}
/*
write_output("sldch_llr.m","sldchllr",ue->sldch_ulsch_llr[npsdch],
12*2*(ue->frame_parms.symbols_per_tti),
1,0);
*/
// unscrambling
......@@ -363,9 +277,9 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
0,
1);
// printf("slsch decoding round %d ret %d\n",ue->dlsch_rx_slsch->harq_processes[0]->round,ret);
// printf("slsch decoding round %d ret %d\n",ue->dlsch_rx_sldch->harq_processes[0]->round,ret);
if (ret<ue->dlsch_rx_sldch[npsdch]->max_turbo_iterations) {
LOG_D(PHY,"SLDCH received for npsdch %d (rvidx %d, iter %d)\n",
LOG_I(PHY,"SLDCH received for npsdch %d (rvidx %d, iter %d)\n",
npsdch,
rvidx,ret);
}
......@@ -374,13 +288,14 @@ void sldch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
void rx_sldch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc, int frame_rx,int subframe_rx) {
SLDCH_t *sldch = &ue->sldch_rx;
AssertFatal(frame_rx<1024 && frame_rx>=0,"frame %d is illegal\n",frame_rx);
AssertFatal(subframe_rx<10 && subframe_rx>=0,"subframe %d is illegal\n",subframe_rx);
SLDCH_t *sldch = &ue->sldch;
AssertFatal(sldch!=NULL,"SLDCH is null\n");
uint32_t O = ue->sldch->offsetIndicator;
uint32_t P = ue->sldch->discPeriod;
uint32_t O = sldch->offsetIndicator;
uint32_t P = sldch->discPeriod;
uint32_t absSF = (frame_rx*10)+subframe_rx;
uint32_t absSF_offset,absSF_modP;
int rvtab[4]={0,2,3,1};
......@@ -390,7 +305,14 @@ void rx_sldch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc, int frame_rx,int subframe_rx
if (absSF_offset < O) return;
absSF_modP = absSF_offset%P;
// compute parameters
AssertFatal(sldch->bitmap_length==4 || sldch->bitmap_length==8 ||
sldch->bitmap_length==12 || sldch->bitmap_length==16 ||
sldch->bitmap_length==30 || sldch->bitmap_length==40 ||
sldch->bitmap_length==42,"SLDCH Bitmap_length %x not supported\n",
sldch->bitmap_length);
if (absSF_modP >= sldch->bitmap_length) return;
uint64_t SFpos = ((uint64_t)1) << absSF_modP;
if ((SFpos & sldch->bitmap1) == 0) return;
......@@ -404,14 +326,13 @@ void rx_sldch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc, int frame_rx,int subframe_rx
sldch->bitmap_length);
int LPSDCH=0;
for (int i=0;i<sldch->bitmap_length;i++) if (((((uint64_t)1)<<i)&sldch->bitmap1) == 1) LPSDCH++;
for (int i=0;i<sldch->bitmap_length;i++) if (((((uint64_t)1)<<i)&sldch->bitmap1) > 00) LPSDCH++;
AssertFatal(sldch->type == disc_type1 || sldch->type == disc_type2B,
"unknown Discovery type %d\n",sldch->type);
int N_TX_SLD = 1+sldch->numRepetitions;
int N_TX_SLD = 1+sldch->numRetx;
uint32_t M_RB_PSDCH_RP = sldch->N_SL_RB;
int first_prb;
if (sldch->type == disc_type1) {
int Ni = LPSDCH/N_TX_SLD;
......@@ -423,16 +344,17 @@ void rx_sldch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc, int frame_rx,int subframe_rx
int npsdch;
int nprb;
LOG_I(PHY,"LPSDCH %d (%llx), N_TX_SLD %d, Ni %d, Nf %d\n",LPSDCH,sldch->bitmap1,N_TX_SLD,Ni,Nf);
// loop over all candidate PRBs
for (int i=0;i<Nf;i++){
jrx = i/(Nf/N_TX_SLD);
npsdch = (i%(Nf/N_TX_SLD))*Ni +((absSF/N_TX_SLD)%Ni);
nprb = i<<1;
for (int a_ji=0;a_ji<Nf;a_ji++){
jrx = absSF_modP%N_TX_SLD;//i/(Nf/N_TX_SLD);
// b_1= absSF_ModP/N_TX_SLD
npsdch = Ni*((a_ji+Nf-(jrx*Nf/N_TX_SLD))%Nf) + ((absSF_modP/N_TX_SLD)%Ni);
nprb = a_ji<<1;
if (nprb<(sldch->N_SL_RB>>1)) nprb+=sldch->prb_Start;
else nprb+=(sldch->prb_End-(sldch->N_SL_RB>>1));
// call decoding for candidate npsdch
LOG_I(PHY,"SLDCH (RX): Trying npsdch %d, j %d (nprb %d)\n",npsdch,jrx,nprb);
LOG_I(PHY,"SLDCH (RX): absSF_modP %d Trying npsdch %d, j %d rvidx %d (nprb %d)\n",absSF_modP,npsdch,jrx,rvtab[jrx],nprb);
sldch_decoding(ue,proc,frame_rx,subframe_rx,npsdch,nprb,rvtab[jrx]);
}
......@@ -480,12 +402,10 @@ void sldch_codingmodulation(PHY_VARS_UE *ue,int frame_tx,int subframe_tx,int npr
int tx_amp;
uint32_t Nsymb = 7;
// 24 REs/PRB * 2*(Nsymb-1) symbols * 2 bits/RE
uint32_t E = 24*(Nsymb-1)*2*2;
AssertFatal(sldch!=NULL,"ue->sldch is null\n");
int mcs = 8;
LOG_I(PHY,"Generating SLDCH for rvidx %d, npsdch %d, first rb %d\n",
......@@ -615,7 +535,7 @@ void check_and_generate_psdch(PHY_VARS_UE *ue,int frame_tx,int subframe_tx) {
absSF_modP = absSF_offset%P;
uint64_t SFpos = ((uint64_t)1) << absSF_modP;
LOG_D(PHY,"SLDCH: SFN.SF %d.%d : absSF_modP %d, bitmap1 %x\n",frame_tx,subframe_tx,absSF_modP,sldch->bitmap1);
LOG_D(PHY,"SLDCH: SFN.SF %d.%d : absSF_modP %d, bitmap1 %llx\n",frame_tx,subframe_tx,absSF_modP,sldch->bitmap1);
if ((SFpos & sldch->bitmap1) == 0) return;
......
openair1/PHY/LTE_TRANSPORT/slsch.c
View file @ ba433236
......@@ -784,7 +784,7 @@ void generate_slsch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,SLSCH_t *slsch,int fram
}
void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot) {
void pscch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subframe_rx,int a,int slot) {
int Nsymb = 7 - slot;
SLSCH_t *slsch = &ue->slsch_rx;
......@@ -809,7 +809,7 @@ void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot)
else nprb = slsch->prb_End_SC-(slsch->N_SL_RB_SC>>1)+amod;
// slot FEP
if (ue->sl_fep_done == 0) {
if (proc->sl_fep_done == 0) {
RU_t ru_tmp;
memset((void*)&ru_tmp,0,sizeof(RU_t));
......@@ -1068,7 +1068,7 @@ void pscch_decoding(PHY_VARS_UE *ue,int frame_rx,int subframe_rx,int a,int slot)
}
void rx_slcch(PHY_VARS_UE *ue,int frame_rx,int subframe_rx) {
void rx_slcch(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subframe_rx) {
AssertFatal(frame_rx<1024 && frame_rx>=0,"frame %d is illegal\n",frame_rx);
AssertFatal(subframe_rx<10 && subframe_rx>=0,"subframe %d is illegal\n",subframe_rx);
......@@ -1118,8 +1118,8 @@ void rx_slcch(PHY_VARS_UE *ue,int frame_rx,int subframe_rx) {
uint32_t b1=slsch->n_pscch%LPSCCH;
uint32_t b2=(slsch->n_pscch + 1 + (a1%(LPSCCH-1)))%LPSCCH;
if (absSF_modP == b1) pscch_decoding(ue,frame_rx,subframe_rx,a1,0);
else if (absSF_modP == b2) pscch_decoding(ue,frame_rx,subframe_rx,a2,1);
if (absSF_modP == b1) pscch_decoding(ue,proc,frame_rx,subframe_rx,a1,0);
else if (absSF_modP == b2) pscch_decoding(ue,proc,frame_rx,subframe_rx,a2,1);
else return;
......@@ -1143,8 +1143,8 @@ void slsch_decoding(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc,int frame_rx,int subfra
LOG_I(PHY,"slsch_decoding %d.%d => lmod10 %d\n",frame_rx,subframe_rx,ljmod10);
// slot FEP
if (ue->sl_fep_done == 0) {
ue->sl_fep_done = 1;
if (proc->sl_fep_done == 0) {
proc->sl_fep_done = 1;
RU_t ru_tmp;
memset((void*)&ru_tmp,0,sizeof(RU_t));
......
openair1/PHY/defs.h
View file @ ba433236
......@@ -625,6 +625,8 @@ typedef struct {
int sub_frame_start;
int sub_frame_step;
unsigned long long gotIQs;
/// indicator that slot_fep has been done for subframe (for sidelink)
int sl_fep_done;
} UE_rxtx_proc_t;
/// Context data structure for eNB subframe processing
......@@ -1299,7 +1301,6 @@ typedef struct {
// This is for SIC in the UE, to store the reencoded data
LTE_eNB_DLSCH_t *dlsch_eNB[NUMBER_OF_CONNECTED_eNB_MAX];
// Sidelink-specific variables
int sl_fep_done;
SL_chan_t sl_chan;
LTE_eNB_DLSCH_t *dlsch_slsch;
LTE_UE_ULSCH_t *ulsch_slsch;
......@@ -1331,6 +1332,7 @@ typedef struct {
uint32_t slsch_errors;
uint32_t slsch_rxcnt[4];
SLDCH_t *sldch;
SLDCH_t sldch_rx;
int sldch_sdu_active;
pthread_mutex_t slss_mutex;
pthread_mutex_t sldch_mutex;
......
openair1/SCHED/phy_procedures_lte_ue.c
View file @ ba433236
......@@ -4793,7 +4793,11 @@ void phy_procedures_UE_SL_RX(PHY_VARS_UE *ue,UE_rxtx_proc_t *proc) {
LOG_D(PHY,"SFN.SF %d.%d Running Steady-state SL UE procedures\n",frame_rx,subframe_rx);
if ((frame_rx&3) == 0 && subframe_rx == 0) rx_psbch(ue,frame_rx,subframe_rx);
proc->sl_fep_done = 0;
if (ue->is_SynchRef == 0 && (frame_rx&3) == 0 && subframe_rx == 0) rx_psbch(ue,frame_rx,subframe_rx);
rx_sldch(ue,proc,frame_rx,subframe_rx);
}
......
openair2/LAYER2/MAC/config_ue.c
View file @ ba433236
......@@ -740,6 +740,7 @@ rrc_mac_config_req_ue(module_id_t Mod_idP,
/// Number of retransmissions (numRetx-r12)
UE_mac_inst[Mod_idP].sldch.numRetx = discrxpool->numRetx_r13;
phy_config_SL(Mod_idP,&UE_mac_inst[Mod_idP].sldch,&UE_mac_inst[Mod_idP].slsch);
}
if (directFrameNumber_r12<1025) UE_mac_inst[Mod_idP].directFrameNumber_r12 = directFrameNumber_r12;
......
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