soft-beta version of polar decoder step 1

openair1/PHY/CODING/nrPolar_tools/nr_polar_decoder.c

@@ -1088,6 +1088,7 @@ uint32_t polar_decoder_int16(int16_t *input,
 
   memcpy((void*)&polarParams->tree.root->alpha[0],(void*)&d_tilde[0],sizeof(int16_t)*polarParams->N);
 
+  for (int iter=0;iter<4;iter++) {
     generic_polar_decoder(polarParams,polarParams->tree.root);
     
     
@@ -1160,8 +1161,19 @@ uint32_t polar_decoder_int16(int16_t *input,
     
     out[0]=Ar;
 
-  return(crc^rxcrc);
 
+    for (int i=0;i<polarParams->N;i++) printf("alpha[%d]=%d, beta[%d]=%d\n",
+					      i,
+					      polarParams->tree.root->alpha[i],
+					      i,
+					      polarParams->tree.root->beta[i]);
 
+    if (crc==rxcrc) return(0);
+
+    memcpy((void*)&polarParams->tree.root->alpha[0],(void*)&polarParams->tree.root->beta[0],sizeof(int16_t)*polarParams->N);
+  
+
+  }
+  return(-1);
 
 }

openair1/PHY/CODING/nrPolar_tools/nr_polar_defs.h

@@ -70,6 +70,7 @@ typedef struct decoder_node_t_s {
   int all_frozen;
   int16_t *alpha;
   int16_t *beta;
+  int16_t *soft_beta;
 } decoder_node_t;
 
 typedef struct decoder_tree_t_s {