Commit 93ba34b0 authored by knopp's avatar knopp
Browse files

testing for pucch format 2, 3-11 bits. Configuration works for 2 PRBs, 1...

testing for pucch format 2, 3-11 bits. Configuration works for 2 PRBs, 1 symbol only. Assertion in gNB RX otherwise.
parent c8ac5d56
......@@ -1495,6 +1495,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_ulsch_demodulation.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/scrambling_luts.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/dmrs_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/ptrs_nr.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c
......
......@@ -96,7 +96,6 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
while(gNB->configured == 0) usleep(10000);
init_dfts();
/*
LOG_I(PHY,"[gNB %"PRIu8"] Initializing DL_FRAME_PARMS : N_RB_DL %"PRIu8", PHICH Resource %d, PHICH Duration %d nb_antennas_tx:%u nb_antennas_rx:%u PRACH[rootSequenceIndex:%u prach_Config_enabled:%u configIndex:%u highSpeed:%u zeroCorrelationZoneConfig:%u freqOffset:%u]\n",
gNB->Mod_id,
......@@ -113,6 +112,8 @@ int phy_init_nr_gNB(PHY_VARS_gNB *gNB,
LOG_D(PHY,"[MSC_NEW][FRAME 00000][PHY_gNB][MOD %02"PRIu8"][]\n", gNB->Mod_id);
crcTableInit();
init_dfts();
init_scrambling_luts();
init_pucch2_luts();
load_nrLDPClib();
// PBCH DMRS gold sequences generation
nr_init_pbch_dmrs(gNB);
......
......@@ -26,7 +26,7 @@
#include "PHY/defs_gNB.h"
#include "PHY/LTE_REFSIG/lte_refsig.h"
#include "PHY/sse_intrin.h"
/*!\brief This function generates the NR Gold sequence (38-211, Sec 5.2.1) for the PBCH DMRS.
@param PHY_VARS_gNB* gNB structure provides configuration, frame parameters and the pointers to the 32 bits sequence storage tables
......@@ -49,4 +49,10 @@ int nr_pusch_dmrs_rx(PHY_VARS_gNB *gNB,
unsigned char lp,
unsigned short nb_pusch_rb,
uint8_t dmrs_type);
void init_scrambling_luts(void);
extern __m64 byte2m64_re[256];
extern __m64 byte2m64_im[256];
#endif
This diff is collapsed.
......@@ -42,6 +42,7 @@
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "T.h"
//#define NR_UNIT_TEST 1
#ifdef NR_UNIT_TEST
#define DEBUG_PUCCH_TX
#define DEBUG_NR_PUCCH_TX
......@@ -905,7 +906,9 @@ void nr_uci_encoding(uint64_t payload,
if (A<=11) {
// procedure in subclause 6.3.1.2.2 (UCI encoded by channel coding of small block lengths -> subclause 6.3.1.3.2)
// CRC bits are not attached, and coding small block lengths (subclause 5.3.3)
b[0] = encodeSmallBlock((uint16_t*)&payload,A);
} else if (A>=12) {
AssertFatal(1==0,"Polar encoding not supported yet for UCI\n");
// procedure in subclause 6.3.1.2.1 (UCI encoded by Polar code -> subclause 6.3.1.3.1)
/*if ((A>=360 && E>=1088)||(A>=1013)) {
I_seg = 1;
......@@ -924,10 +927,13 @@ void nr_uci_encoding(uint64_t payload,
// code block segmentation and CRC attachment is performed according to subclause 5.2.1
// polar coding subclause 5.3.1
}
}
//#if 0
void nr_generate_pucch2(PHY_VARS_NR_UE *ue,
uint16_t crnti,
uint32_t dmrs_scrambling_id,
uint32_t data_scrambling_id,
int32_t **txdataF,
NR_DL_FRAME_PARMS *frame_parms,
PUCCH_CONFIG_DEDICATED *pucch_config_dedicated,
......@@ -961,14 +967,14 @@ void nr_generate_pucch2(PHY_VARS_NR_UE *ue,
*/
uint8_t *btilde = malloc(sizeof(int8_t)*M_bit);
// rnti is given by the C-RNTI
uint16_t rnti=crnti, n_id=0;
uint16_t rnti=crnti;
#ifdef DEBUG_NR_PUCCH_TX
printf("\t [nr_generate_pucch2] rnti = %d ,\n",rnti);
#endif
/*
* Implementing TS 38.211 Subclause 6.3.2.5.1 scrambling format 2
*/
nr_pucch2_3_4_scrambling(M_bit,rnti,n_id,b,btilde);
nr_pucch2_3_4_scrambling(M_bit,rnti,data_scrambling_id,b,btilde);
/*
* Implementing TS 38.211 Subclause 6.3.2.5.2 modulation format 2
* btilde shall be modulated as described in subclause 5.1 using QPSK
......@@ -1016,10 +1022,10 @@ void nr_generate_pucch2(PHY_VARS_NR_UE *ue,
int m=0;
for (int l=0; l<nrofSymbols; l++) {
x2 = (((1<<17)*((14*nr_tti_tx) + (l+startingSymbolIndex) + 1)*((2*n_id) + 1)) + (2*n_id))%(1U<<31); // c_init calculation according to TS38.211 subclause
x2 = (((1<<17)*((14*nr_tti_tx) + (l+startingSymbolIndex) + 1)*((2*dmrs_scrambling_id) + 1)) + (2*dmrs_scrambling_id))%(1U<<31); // c_init calculation according to TS38.211 subclause
s = lte_gold_generic(&x1, &x2, 1);
m = 0;
for (int rb=0; rb<nrofPRB; rb++) {
//startingPRB = startingPRB + rb;
if (((rb+startingPRB) < (frame_parms->N_RB_DL>>1)) && ((frame_parms->N_RB_DL & 1) == 0)) { // if number RBs in bandwidth is even and current PRB is lower band
......
......@@ -20,7 +20,7 @@
*/
/*! \file PHY/NR_UE_TRANSPORT/pucch_nr.c
* \brief Top-level routines for generating and decoding the PUCCH physical channel
* \brief Top-level routines for generating the PUCCH physical channel
* \author A. Mico Pereperez
* \date 2018
* \version 0.1
......@@ -70,6 +70,8 @@ void nr_generate_pucch1(PHY_VARS_NR_UE *ue,
uint8_t nr_bit);
void nr_generate_pucch2(PHY_VARS_NR_UE *ue,
uint16_t crnti,
uint32_t dmrs_scrambling_id,
uint32_t data_scrambling_id,
int32_t **txdataF,
NR_DL_FRAME_PARMS *frame_parms,
PUCCH_CONFIG_DEDICATED *pucch_config_dedicated,
......
......@@ -93,11 +93,12 @@ int main(int argc, char **argv)
uint8_t nrofSymbols=1; //number of OFDM symbols can be 1-2 for format 1
uint8_t startingSymbolIndex=0; // resource allocated see 9.2.1, 38.213 for more info.should be actually present in the resource set provided
uint16_t startingPRB=0,startingPRB_intraSlotHopping=0; //PRB number not sure see 9.2.1, 38.213 for more info. Should be actually present in the resource set provided
uint16_t nrofPRB=2;
uint8_t timeDomainOCC=0;
SCM_t channel_model=AWGN;//Rayleigh1_anticorr;
int N_RB_DL=273,mu=1;
float target_error_rate=0.01;
float target_error_rate=0.001;
int frame_length_complex_samples;
//int frame_length_complex_samples_no_prefix;
NR_DL_FRAME_PARMS *frame_parms;
......@@ -112,9 +113,8 @@ int main(int argc, char **argv)
randominit(0);
logInit();
set_glog(loglvl);
while ((c = getopt (argc, argv, "f:hA:f:g:i:I:P:B:b:T:m:n:r:o:s:S:x:y:z:N:F:GR:IL")) != -1) {
while ((c = getopt (argc, argv, "f:hA:f:g:i:I:P:B:b:T:m:n:r:o:s:S:x:y:z:N:F:GR:IL:q:")) != -1) {
switch (c) {
case 'f':
//write_output_file=1;
......@@ -263,6 +263,9 @@ int main(int argc, char **argv)
case 'r':
startingPRB=atoi(optarg);
break;
case 'q':
nrofPRB=atoi(optarg);
break;
case 'P':
format=atoi(optarg);
break;
......@@ -305,7 +308,8 @@ int main(int argc, char **argv)
printf("-F Input filename (.txt format) for RX conformance testing\n");
printf("-i Enter number of ofdm symbols for pucch\n");
printf("-I Starting symbol index for pucch\n");
printf("-r PUCCCH starting PRB\n");
printf("-r PUCCH starting PRB\n");
printf("-q PUCCH number of PRB\n");
printf("-P Enter the format of PUCCH\n");
printf("-b number of HARQ bits (1-2)\n");
printf("-B payload to be transmitted on PUCCH\n");
......@@ -316,18 +320,22 @@ int main(int argc, char **argv)
}
}
set_glog(loglvl);
if (snr1set==0) snr1 = snr0+10;
printf("Initializing gNodeB for mu %d, N_RB_DL %d\n",mu,N_RB_DL);
if((format!=0) && (format!=1)){
if((format!=0) && (format!=1) && (format!=2)){
printf("PUCCH format %d not supported\n",format);
exit(0);
}
AssertFatal((nr_bit<3)&&(actual_payload<4),"Only format 0 and 1 currently supported. 2 bits max supported");
AssertFatal(((format < 2)&&(nr_bit<3)&&(actual_payload<4)) ||
((format == 2)&&(nr_bit>2)&&(nr_bit<12)),"illegal combination format %d, nr_bit %d\n",
format,nr_bit);
if (nr_bit==1) actual_payload = actual_payload&1;
actual_payload &= ((1<<nr_bit)-1);
printf("Transmitted payload is %ld\n",actual_payload);
......@@ -417,9 +425,9 @@ int main(int argc, char **argv)
bzero(r_im[i],frame_length_complex_samples*sizeof(double));
printf("Allocating %d samples for txdataF/rxdataF\n",14*frame_parms->ofdm_symbol_size);
txdataF[i] = malloc(14*frame_parms->ofdm_symbol_size*sizeof(int));
txdataF[i] = memalign(32,14*frame_parms->ofdm_symbol_size*sizeof(int));
bzero(txdataF[i],14*frame_parms->ofdm_symbol_size*sizeof(int));
rxdataF[i] = malloc(14*frame_parms->ofdm_symbol_size*sizeof(int));
rxdataF[i] = memalign(32,14*frame_parms->ofdm_symbol_size*sizeof(int));
bzero(rxdataF[i],14*frame_parms->ofdm_symbol_size*sizeof(int));
}
......@@ -443,8 +451,8 @@ int main(int argc, char **argv)
uint8_t mcs=0;
startingPRB_intraSlotHopping=N_RB_DL-1;
pucch_GroupHopping_t PUCCH_GroupHopping=UE->pucch_config_common_nr->pucch_GroupHopping;
uint32_t n_id=UE->pucch_config_common_nr->hoppingId;
uint32_t hopping_id=UE->pucch_config_common_nr->hoppingId;
uint32_t dmrs_scrambling_id = 0, data_scrambling_id=0;
if(format==0){
// for now we are not considering SR just HARQ-ACK
if(nr_bit==1)
......@@ -461,9 +469,12 @@ int main(int argc, char **argv)
if(format==0){
nr_generate_pucch0(UE,txdataF,frame_parms,UE->pucch_config_dedicated,amp,nr_tti_tx,m0,mcs,nrofSymbols,startingSymbolIndex,startingPRB);
}
else{
else if (format == 1){
nr_generate_pucch1(UE,txdataF,frame_parms,UE->pucch_config_dedicated,actual_payload,amp,nr_tti_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,startingPRB_intraSlotHopping,0,nr_bit);
}
else {
nr_generate_pucch2(UE,0x1234,dmrs_scrambling_id,data_scrambling_id,txdataF,frame_parms,UE->pucch_config_dedicated,actual_payload,amp,nr_tti_tx,nrofSymbols,startingSymbolIndex,nrofPRB,startingPRB,nr_bit);
}
int txlev = signal_energy(&txdataF[aa][startingSymbolIndex*frame_parms->ofdm_symbol_size],
frame_parms->ofdm_symbol_size);
......@@ -489,7 +500,7 @@ int main(int argc, char **argv)
pucch_pdu.bit_len_harq = nr_bit;
pucch_pdu.sr_flag = 0;
pucch_pdu.nr_of_symbols = nrofSymbols;
pucch_pdu.hopping_id = n_id;
pucch_pdu.hopping_id = hopping_id;
pucch_pdu.initial_cyclic_shift = 0;
pucch_pdu.start_symbol_index = startingSymbolIndex;
pucch_pdu.prb_start = startingPRB;
......@@ -497,21 +508,49 @@ int main(int argc, char **argv)
if(nr_bit==1)
ack_nack_errors+=(actual_payload^uci_pdu.harq->harq_list[0].harq_value);
else
ack_nack_errors+=((actual_payload^uci_pdu.harq->harq_list[0].harq_value)+((actual_payload>>1)^uci_pdu.harq->harq_list[1].harq_value));
ack_nack_errors+=(((actual_payload&1)^uci_pdu.harq->harq_list[0].harq_value)+((actual_payload>>1)^uci_pdu.harq->harq_list[1].harq_value));
free(uci_pdu.harq->harq_list);
}
else{
else if (format==1) {
nr_decode_pucch1(rxdataF,PUCCH_GroupHopping,n_id,&(payload_received),frame_parms,amp,nr_tti_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,startingPRB_intraSlotHopping,timeDomainOCC,nr_bit);
nr_decode_pucch1(rxdataF,PUCCH_GroupHopping,hopping_id,&(payload_received),frame_parms,amp,nr_tti_tx,m0,nrofSymbols,startingSymbolIndex,startingPRB,startingPRB_intraSlotHopping,timeDomainOCC,nr_bit);
if(nr_bit==1)
ack_nack_errors+=((actual_payload^payload_received)&1);
else
ack_nack_errors+=((actual_payload^payload_received)&1) + (((actual_payload^payload_received)&2)>>1);
}
else if (format==2) {
nfapi_nr_uci_pucch_pdu_format_2_3_4_t uci_pdu;
nfapi_nr_pucch_pdu_t pucch_pdu;
pucch_pdu.rnti = 0x1234;
pucch_pdu.subcarrier_spacing = 1;
pucch_pdu.group_hop_flag = PUCCH_GroupHopping&1;
pucch_pdu.sequence_hop_flag = (PUCCH_GroupHopping>>1)&1;
pucch_pdu.bit_len_harq = nr_bit;
pucch_pdu.sr_flag = 0;
pucch_pdu.nr_of_symbols = nrofSymbols;
pucch_pdu.hopping_id = hopping_id;
pucch_pdu.initial_cyclic_shift = 0;
pucch_pdu.start_symbol_index = startingSymbolIndex;
pucch_pdu.prb_size = nrofPRB;
pucch_pdu.prb_start = startingPRB;
pucch_pdu.dmrs_scrambling_id = dmrs_scrambling_id;
pucch_pdu.data_scrambling_id = data_scrambling_id;
nr_decode_pucch2(gNB,nr_tti_tx,&uci_pdu,&pucch_pdu);
int harq_bytes=pucch_pdu.bit_len_harq>>3;
if ((pucch_pdu.bit_len_harq&7) > 0) harq_bytes++;
for (int i=0;i<harq_bytes;i++)
if (uci_pdu.harq.harq_payload[i] != ((int8_t*)&actual_payload)[i]) {
ack_nack_errors++;
break;
}
free(uci_pdu.harq.harq_payload);
}
n_errors=((actual_payload^payload_received)&1)+(((actual_payload^payload_received)&2)>>1)+(((actual_payload^payload_received)&4)>>2)+n_errors;
}
printf("SNR=%f, n_trials=%d, n_bit_errors=%d\n",SNR,n_trials,ack_nack_errors);
if((float)ack_nack_errors/(float)(nr_bit*n_trials)<=target_error_rate){
if((float)ack_nack_errors/(float)(n_trials)<=target_error_rate){
printf("PUCCH test OK\n");
break;
}
......
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