SSB correctly demodulated at FSW, CRC passes, but payload is wrong

openair1/PHY/NR_TRANSPORT/nr_dlsch_coding.c

@@ -39,6 +39,7 @@
 #include "PHY/NR_TRANSPORT/nr_transport.h"
 #include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
 #include "PHY/NR_TRANSPORT/nr_dlsch.h"
+#include "openair2/LAYER2/NR_MAC_gNB/mac_proto.h"
 #include "SCHED_NR/sched_nr.h"
 #include "defs.h"
 #include "common/utils/LOG/vcd_signal_dumper.h"

openair1/PHY/NR_TRANSPORT/nr_pbch.c

@@ -227,7 +227,6 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
                      uint8_t ssb_start_symbol,
                      uint8_t n_hf,
                      uint8_t Lmax,
-                     uint8_t ssb_index,
                      int sfn,
                      nfapi_nr_config_request_scf_t *config,
                      NR_DL_FRAME_PARMS *frame_parms) {
@@ -243,6 +242,7 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
   ///Payload generation
   memset((void *)pbch, 0, sizeof(NR_gNB_PBCH));
   pbch->pbch_a=0;
+  uint8_t ssb_index = ssb_pdu->ssb_pdu_rel15.SsbBlockIndex;
   uint8_t *pbch_pdu = (uint8_t*)&ssb_pdu->ssb_pdu_rel15.bchPayload;
   for (int i=0; i<NR_PBCH_PDU_BITS; i++)
     pbch->pbch_a |= ((pbch_pdu[2-(i>>3)]>>(7-(i&7)))&1)<<i;

openair1/PHY/NR_TRANSPORT/nr_transport.h

@@ -92,7 +92,6 @@ int nr_generate_pbch(NR_gNB_PBCH *pbch,
                      uint8_t ssb_start_symbol,
                      uint8_t n_hf,
                      uint8_t Lmax,
-                     uint8_t ssb_index,
                      int sfn,
                      nfapi_nr_config_request_scf_t *config,
                      NR_DL_FRAME_PARMS *frame_parms);

openair1/SCHED_NR/fapi_nr_l1.c

@@ -161,7 +161,6 @@ void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO){
   gNB->num_pdsch_rnti=0;
   gNB->pdcch_pdu = NULL;
   gNB->pbch_configured=0;
-  gNB->ssb_pdu=NULL;
 
   for (int i=0;i<number_dl_pdu;i++) {
     nfapi_nr_dl_tti_request_pdu_t *dl_tti_pdu = &DL_req->dl_tti_request_body.dl_tti_pdu_list[i];

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -117,6 +117,8 @@ void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int slot) {
       ssb_index = i + 2*rel_slot; // computing the ssb_index
       if ((fp->L_ssb >> ssb_index) & 0x01)  { // generating the ssb only if the bit of L_ssb at current ssb index is 1
 	
+        gNB->ssb_pdu->ssb_pdu_rel15.SsbBlockIndex = ssb_index;
+ 
 	int ssb_start_symbol_abs = nr_get_ssb_start_symbol(fp, ssb_index); // computing the starting symbol for current ssb
 	ssb_start_symbol = ssb_start_symbol_abs % 14;  // start symbol wrt slot
 	
@@ -137,7 +139,7 @@ void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int slot) {
 			 txdataF[0],
 			 AMP,
 			 ssb_start_symbol,
-			 n_hf,fp->Lmax,ssb_index,
+			 n_hf,fp->Lmax,
 			 frame, cfg, fp);
       }
     }