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Payload check in pbchsim

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This commit is contained in:
Guy De Souza
2018-12-17 14:12:54 +01:00
parent b12d6b7340
commit 91a47eb94a
3 changed files with 25 additions and 12 deletions
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openair1/PHY/NR_TRANSPORT/nr_pbch.c
+2 -1
View File
@@ -277,7 +277,8 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
else
pbch->pbch_a |= ((config->sch_config.ssb_subcarrier_offset.value>>4)&1)<<29; //MSB of k_SSB (bit index 4)
LOG_I(PHY,"After extra byte: pbch_a = 0x%08x\n",pbch->pbch_a);
//LOG_I(PHY,"After extra byte: pbch_a = 0x%08x\n",pbch->pbch_a);
printf("After extra byte: pbch_a = 0x%08x\n",pbch->pbch_a);
// Payload interleaving
openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c
+4 -5
View File
@@ -36,7 +36,7 @@
#include "PHY/LTE_REFSIG/lte_refsig.h"
//#define DEBUG_PBCH 1
#define DEBUG_PBCH_ENCODING
//#define DEBUG_PBCH_ENCODING
#ifdef OPENAIR2
//#include "PHY_INTERFACE/defs.h"
@@ -508,7 +508,7 @@ unsigned char sign(int8_t x) {
}
*/
uint8_t pbch_deinterleaving_pattern[32] = {28,0,31,30,7,29,25,27,5,8,24,9,10,11,12,13,1,4,3,14,15,16,17,2,26,18,19,20,21,22,30,23};
uint8_t pbch_deinterleaving_pattern[32] = {28,0,31,30,7,29,25,27,5,8,24,9,10,11,12,13,1,4,3,14,15,16,17,2,26,18,19,20,21,22,6,23};
int nr_rx_pbch( PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
@@ -673,16 +673,15 @@ int nr_rx_pbch( PHY_VARS_NR_UE *ue,
M = (Lmax == 64)? (NR_POLAR_PBCH_PAYLOAD_BITS - 6) : (NR_POLAR_PBCH_PAYLOAD_BITS - 3);
nushift = ((nr_ue_pbch_vars->pbch_a_prime>>24)&1) ^ (((nr_ue_pbch_vars->pbch_a_prime>>6)&1)<<1);
nr_pbch_unscrambling(nr_ue_pbch_vars,frame_parms->Nid_cell,nushift,M,NR_POLAR_PBCH_PAYLOAD_BITS,1,unscrambling_mask);
printf("nushift %d sfn 3rd %d 2nd %d\n", nushift,((nr_ue_pbch_vars->pbch_a_prime>>6)&1), ((nr_ue_pbch_vars->pbch_a_prime>>24)&1) );
//payload deinterleaving
//uint32_t in=0;
uint32_t out=0;
for (int i=0; i<32; i++) {
out |= ((nr_ue_pbch_vars->pbch_a_interleaved>>i)&1)<<(pbch_deinterleaving_pattern[i]);
#ifdef DEBUG_PBCH
//#ifdef DEBUG_PBCH
printf("i %d in 0x%08x out 0x%08x ilv %d (in>>i)&1) 0x%08x\n", i, nr_ue_pbch_vars->pbch_a_interleaved, out, pbch_deinterleaving_pattern[i], (nr_ue_pbch_vars->pbch_a_interleaved>>i)&1);
#endif
//#endif
}
uint32_t payload = 0;
openair1/SIMULATION/NR_PHY/pbchsim.c
+19 -6
View File
@@ -122,13 +122,13 @@ int main(int argc, char **argv)
unsigned char frame_type = 0;
unsigned char pbch_phase = 0;
int frame=0,subframe=0;
int frame=8,subframe=0;
int frame_length_complex_samples;
int frame_length_complex_samples_no_prefix;
NR_DL_FRAME_PARMS *frame_parms;
nfapi_nr_config_request_t *gNB_config;
int ret;
int ret, payload_ret=0;
int run_initial_sync=0;
int loglvl=OAILOG_WARNING;
@@ -570,9 +570,17 @@ int main(int argc, char **argv)
if (ret==0) {
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_index; //not yet detected automatically
//UE->rx_ind.rx_indication_body->mib_pdu.ssb_length; //Lmax, not yet detected automatically
for (i=0;i<3;i++)
printf("pdu byte %d gNB: 0x%02x UE: 0x%02x\n",i,((uint8_t*)&gNB->pbch.pbch_a)[i], UE->rx_ind.rx_indication_body->mib_pdu.pdu[i]);
printf("xtra byte gNB: 0x%02x UE: 0x%02x\n",((uint8_t*)&gNB->pbch.pbch_a)[3], UE->rx_ind.rx_indication_body->mib_pdu.additional_bits);
uint8_t gNB_xtra_byte=0;
for (int i=0; i<8; i++)
gNB_xtra_byte |= ((gNB->pbch.pbch_a>>(31-i))&1)<<(7-i);
payload_ret += (UE->rx_ind.rx_indication_body->mib_pdu.additional_bits == gNB_xtra_byte);
for (i=0;i<3;i++){
payload_ret += (UE->rx_ind.rx_indication_body->mib_pdu.pdu[i] == gNB->pbch_pdu[2-i]);
//printf("pdu byte %d gNB: 0x%02x UE: 0x%02x\n",i,gNB->pbch_pdu[i], UE->rx_ind.rx_indication_body->mib_pdu.pdu[i]);
}
//printf("xtra byte gNB: 0x%02x UE: 0x%02x\n",gNB_xtra_byte, UE->rx_ind.rx_indication_body->mib_pdu.additional_bits);
//printf("ret %d\n", payload_ret);
}
if (ret<0) n_errors++;
@@ -582,7 +590,12 @@ int main(int argc, char **argv)
printf("SNR %f : n_errors (negative CRC) = %d/%d\n", SNR,n_errors,n_trials);
if ((float)n_errors/(float)n_trials <= target_error_rate) {
printf("PBCH test OK\n");
if (payload_ret==4) {
printf("Payload OK\n");
printf("PBCH test OK\n");
}
else
printf("Payload NOK\n");
break;
}