ue add nr pbch unscrambling

openair1/PHY/NR_UE_TRANSPORT/nr_initial_sync.c

@@ -95,6 +95,8 @@ int pbch_detection(PHY_VARS_NR_UE *ue, runmode_t mode)
 
   pbch_decoded = 0;
 
+  printf("pbch_detection nid_cell %d\n",frame_parms->Nid_cell);
+  
   //for (frame_mod4=0; frame_mod4<4; frame_mod4++) {
     pbch_tx_ant = nr_rx_pbch(ue,
 						  &ue->proc.proc_rxtx[0],
@@ -265,6 +267,7 @@ int nr_initial_sync(PHY_VARS_NR_UE *ue, runmode_t mode)
 
     nr_gold_pbch(ue);
     ret = pbch_detection(ue,mode);
+    ret = -1;
     //   write_output("rxdata2.m","rxd2",ue->common_vars.rxdata[0],10*frame_parms->samples_per_tti,1,1);
 
 #ifdef DEBUG_INITIAL_SYNCH

openair1/PHY/NR_UE_TRANSPORT/nr_pbch.c

@@ -394,6 +394,8 @@ void nr_pbch_unscrambling(NR_DL_FRAME_PARMS *frame_parms,
   uint8_t reset;
   uint32_t x1, x2, s=0;
 
+  printf("unscramb nid_cell %d\n",frame_parms->Nid_cell);
+
   reset = 1;
   // x1 is set in first call to lte_gold_generic
   x2 = frame_parms->Nid_cell; //this is c_init in 36.211 Sec 6.6.1
@@ -402,12 +404,13 @@ void nr_pbch_unscrambling(NR_DL_FRAME_PARMS *frame_parms,
   for (i=0; i<length; i++) {
     if (i%32==0) {
       s = lte_gold_generic(&x1, &x2, reset);
-      //      printf("lte_gold[%d]=%x\n",i,s);
+            printf("lte_gold[%d]=%x\n",i,s);
       reset = 0;
     }
 
-    if (((s>>(i%32))&1)==0)
-      pbch_a[i] = -pbch_a[i];
+    printf("s = %d\n",((s>>(i%32))&1) );
+    if (((s>>(i%32))&1)==1)
+      pbch_a[i] = 1-pbch_a[i];
   }
 }
 
@@ -449,7 +452,7 @@ void nr_pbch_alamouti(NR_DL_FRAME_PARMS *frame_parms,
 
 }
 
-void nr_pbch_quantize(int16_t *pbch_llr16,
+void nr_pbch_quantize(int8_t *pbch_llr8,
                    int16_t *pbch_llr,
                    uint16_t len)
 {
@@ -462,7 +465,7 @@ void nr_pbch_quantize(int16_t *pbch_llr16,
     else if (pbch_llr[i]<-8)
       pbch_llr8[i]=-8;
     else*/
-      pbch_llr16[i] = (char)(pbch_llr[i]);
+      pbch_llr8[i] = (char)(pbch_llr[i]);
 
   }
 }
@@ -487,9 +490,10 @@ uint16_t nr_rx_pbch( PHY_VARS_NR_UE *ue,
   int max_h=0;
 
   int symbol,i;
-  uint8_t pbch_a[64];
+  //uint8_t pbch_a[64];
+  uint8_t *pbch_a = malloc(sizeof(uint8_t) * 32); ;
 
-  int16_t *pbch_e_rx;
+  int8_t *pbch_e_rx;
   uint8_t *decoded_output = nr_ue_pbch_vars->decoded_output;
   uint16_t crc;
   //short nr_demod_table[8] = {0,0,0,1,1,0,1,1};
@@ -504,6 +508,11 @@ uint16_t nr_rx_pbch( PHY_VARS_NR_UE *ue,
   memset(&channelOutput[0], 0, sizeof(double) * 864);
   memset(&estimatedOutput[0], 0, sizeof(uint8_t) * 32);
 
+  memset(&pbch_a[0], 0, sizeof(uint8_t) * 32);
+  frame_parms->Nid_cell = 100;
+
+  printf("nr_pbch_ue nid_cell %d\n",frame_parms->Nid_cell);
+
   for (int i=0; i<frame_parms->pbch_polar_params.payloadBits; i++) aPrioriArray[i] = NAN;
 
   int subframe_rx = proc->subframe_rx;
@@ -600,17 +609,20 @@ uint16_t nr_rx_pbch( PHY_VARS_NR_UE *ue,
 
 		
   //polar decoding de-rate matching
-  decoderState = polar_decoder(demod_pbch_e, estimatedOutput, &frame_parms->pbch_polar_params, decoderListSize, aPrioriArray, pathMetricAppr);
+  decoderState = polar_decoder(demod_pbch_e, pbch_a, &frame_parms->pbch_polar_params, decoderListSize, aPrioriArray, pathMetricAppr);
 
-  //memset(pbch_a,0,((16+NR_POLAR_PBCH_PAYLOAD_BITS)>>3));
+   for (i=0; i<32 /*(NR_POLAR_PBCH_PAYLOAD_BITS>>3)*/; i++)
+     printf("pbch_a[%d] = %d \n", i,pbch_a[i]);
+  
   //un-scrambling
-  // nr_pbch_unscrambling(frame_parms,
-  //                  pbch_a,
-  //					NR_POLAR_PBCH_PAYLOAD_BITS);
+  nr_pbch_unscrambling(frame_parms,pbch_a,NR_POLAR_PBCH_PAYLOAD_BITS);
+
+   for (i=0; i<32 /*(NR_POLAR_PBCH_PAYLOAD_BITS>>3)*/; i++)
+     printf("after unscrambling pbch_a[%d] = %d \n", i,pbch_a[i]);
 
   // Fix byte endian
-  for (i=0; i<32 /*(NR_POLAR_PBCH_PAYLOAD_BITS>>3)*/; i++)
-     printf("estimated output[%d] = %d \n", i,estimatedOutput[i]);
+  //for (i=0; i<32 /*(NR_POLAR_PBCH_PAYLOAD_BITS>>3)*/; i++)
+   // printf("estimated output[%d] = %d \n", i,estimatedOutput[i]);
   //decoded_output[(NR_POLAR_PBCH_PAYLOAD_BITS>>3)-i-1] = pbch_a[i];
 
   //#ifdef DEBUG_PBCH

targets/RT/USER/nr-ue.c

@@ -61,6 +61,8 @@
 #include "T.h"
 
 extern double cpuf;
+static  nfapi_config_request_t config_t;
+static  nfapi_config_request_t* config =&config_t;
 
 #define FRAME_PERIOD    100000000ULL
 #define DAQ_PERIOD      66667ULL
@@ -413,7 +415,7 @@ static void *UE_thread_synch(void *arg) {
                     //UE->rfdevice.trx_set_gains_func(&openair0,&openair0_cfg[0]);
                     //UE->rfdevice.trx_stop_func(&UE->rfdevice);
                     // sleep(1);
-                    nr_init_frame_parms_ue(&UE->frame_parms);
+		    nr_init_frame_parms_ue(config,&UE->frame_parms);
                     /*if (UE->rfdevice.trx_start_func(&UE->rfdevice) != 0 ) {
                         LOG_E(HW,"Could not start the device\n");
                         oai_exit=1;