1. Changing precoder to minimize interference: testing simple channels.

2. Fixing confusion between dl_ch_rho2_ext and dl_ch_rho_ext[harq_pid][round].

openair1/PHY/LTE_TRANSPORT/dci_tools.c

@@ -5897,7 +5897,7 @@ uint16_t quantize_subband_pmi(PHY_MEASUREMENTS *meas,uint8_t eNB_id,int nb_rb)
         pmi_im += meas->subband_pmi_im[eNB_id][i][aarx];
 	//printf("meas->subband_pmi_im[eNB_id][i][%d]=%d\n",aarx, meas->subband_pmi_im[eNB_id][i][aarx]);
       }
-      if (((pmi_re >= pmi_im) && (pmi_re >= -pmi_im)) || ((pmi_re >= pmi_im) && (pmi_re <= -pmi_im)))
+      if (((pmi_re >= pmi_im) && (pmi_re >= -pmi_im)) || ((pmi_re <= pmi_im) && (pmi_re <= -pmi_im)))
 	pmiq = PMI_2A_R1_11;
       else 
 	pmiq = PMI_2A_R1_1j;

openair1/PHY/LTE_TRANSPORT/dlsch_llr_computation.c

@@ -740,7 +740,8 @@ int32_t dlsch_qpsk_llr_SIC(LTE_DL_FRAME_PARMS *frame_parms,
 				        1,
 				        len);	
     
-    printf ("Got x0*rho_a\n");
+     
+ //   printf ("Got x0*rho_a\n");
    
     mult_cpx_vector((int16_t *)rho_amp_x0,
                     (int16_t *)rho_1,
@@ -749,30 +750,32 @@ int32_t dlsch_qpsk_llr_SIC(LTE_DL_FRAME_PARMS *frame_parms,
                     13);
 
     write_output("rho_rho.m","rho2", rho_rho_amp_x0,len,1,1);
-    printf ("Computed  rho*rho_a*x0\n");
+ //   printf ("Computed  rho*rho_a*x0\n");
+  
     
     sub_cpx_vector16((int16_t *)rxF,
 		     (int16_t *)rho_rho_amp_x0,
-		     //(int16_t *)clean_x1,
+		    // (int16_t *)clean_x1,
 		     (int16_t *)rxF,
 		     len*2); 
 
+    
     write_output("clean_x1.m","x1", clean_x1,len,1,1);
-    printf ("Interference removed \n");
+  //  printf ("Interference removed \n");
 
-    printf("dlsch_qpsk_llr_SIC: symbol %d,nb_rb %d, len %d,pbch_pss_sss_adjust %d\n",symbol,nb_rb,len,pbch_pss_sss_adjust);
+  //  printf("dlsch_qpsk_llr_SIC: symbol %d,nb_rb %d, len %d,pbch_pss_sss_adjust %d\n",symbol,nb_rb,len,pbch_pss_sss_adjust);
 
  
     //this is for QPSK only!!!
     for (i=0; i<len*2; i++) {
-      *llr16 = rxF[i];
+      *llr16 =rxF[i];
       //printf("llr %d : (%d,%d)\n",i,((int16_t*)llr32)[0],((int16_t*)llr32)[1]);
       llr16++;
     }
     
   }
 
-  printf("dlsch_qpsk_llr_SIC: acc_len=%d\n",len_acc);
+ // printf("dlsch_qpsk_llr_SIC: acc_len=%d\n",len_acc);
 
   return(0);
 }

openair1/PHY/LTE_TRANSPORT/dlsch_modulation.c

@@ -882,6 +882,8 @@ int allocate_REs_in_RB(LTE_DL_FRAME_PARMS *frame_parms,
 	  break;
 	  
 	}
+	
+	if   (dlsch1_harq) {
 	switch (mod_order1) {
 	case 2:  //QPSK
 
@@ -974,6 +976,7 @@ int allocate_REs_in_RB(LTE_DL_FRAME_PARMS *frame_parms,
 	  
 	}
       }
+      }
 
 
       if (mimo_mode == ALAMOUTI) {
@@ -1639,7 +1642,7 @@ int dlsch_modulation_SIC(mod_sym_t **sic_buffer,
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_ENB_DLSCH_MODULATION, VCD_FUNCTION_IN);
 
   amp=1; //we do full scale here for SIC
-  gain_lin_QPSK = (int16_t)((amp*ONE_OVER_SQRT2_Q15));
+  gain_lin_QPSK = (int16_t)((ONE_OVER_SQRT2_Q15));
   
   jj = 0;
   i = 0;

openair1/PHY/LTE_TRANSPORT/power_control.c

@@ -29,7 +29,7 @@
 #include "PHY/defs.h"
 #include "PHY/impl_defs_lte.h"
 
-#define DEBUG_PC 0
+//#define DEBUG_PC 0
 /*
 double ratioPB[2][4]={{ 1.0,4.0/5.0,3.0/5.0,2.0/5.0},
           { 5.0/4.0,1.0,3.0/4.0,1.0/2.0}};

openair1/PHY/TOOLS/cmult_vv.c

@@ -169,7 +169,7 @@ int mult_cpx_vector(int16_t *x1,
   x2_128 = (simd_q15_t *)&x2[0];
   y_128  = (simd_q15_t *)&y[0];
   //print_shorts("x1_128:",&x1_128[0]);
-  //print_shorts("x2_128:",&x2_128[0]);
+ // print_shorts("x2_128:",&x2_128[0]);
   
   //right shift by 13 while p_a * x0 and 15 while  
   // we compute 4 cpx multiply for each loop

openair1/SIMULATION/LTE_PHY/dlsim.c

@@ -3520,7 +3520,7 @@ n(tikz_fname,"w");
 	   
 	     
 	    if (ret <= PHY_vars_UE->dlsch_ue[0][cw_non_sic]->max_turbo_iterations ) { 
-                 printf("ret=%d\n", ret);
+
 	      if (cw_non_sic==0) {		
 		avg_iter += ret;
 		iter_trials++;
@@ -3649,7 +3649,7 @@ n(tikz_fname,"w");
 			(PHY_vars_UE->dlsch_ue[eNB_id][0]->harq_processes[PHY_vars_UE->dlsch_ue[eNB_id][0]->current_harq_pid]->mimo_mode <=DUALSTREAM_PUSCH_PRECODING) &&
 			rx_type==rx_SIC_dual_stream) {
 	  
-	  for (round = 0 ; round < 1 ; round++) {
+	 // for (round = 0 ; round < 1 ; round++) {
 	    dlsch0_ue_harq = PHY_vars_UE->dlsch_ue[eNB_id][0]->harq_processes[PHY_vars_UE->dlsch_ue[eNB_id][0]->current_harq_pid];
 	    dlsch0_eNB_harq = PHY_vars_UE->dlsch_eNB[eNB_id]->harq_processes[PHY_vars_UE->dlsch_ue[eNB_id][0]->current_harq_pid];
 	      
@@ -3677,6 +3677,7 @@ n(tikz_fname,"w");
 			   &PHY_vars_UE->dlsch_turbo_encoding_stats,
 			   &PHY_vars_UE->dlsch_interleaving_stats);
 	 
+	      
 	    coded_bits_per_codeword = get_G(&PHY_vars_UE->lte_frame_parms,
 					    PHY_vars_UE->dlsch_eNB[eNB_id]->harq_processes[PHY_vars_UE->dlsch_eNB[eNB_id]->current_harq_pid]->nb_rb,
 					    PHY_vars_UE->dlsch_eNB[eNB_id]->harq_processes[PHY_vars_UE->dlsch_eNB[eNB_id]->current_harq_pid]->rb_alloc,
@@ -3716,7 +3717,7 @@ n(tikz_fname,"w");
                                dlsch0_eNB_harq->nb_rb,
                                adjust_G2(&PHY_vars_UE->lte_frame_parms,&dlsch0_eNB_harq->rb_alloc[0],2,subframe,num_pdcch_symbols),
 		               PHY_vars_UE->dlsch_ue[eNB_id][0]);
-	        }// round
+	       // }// round
 	
             write_output("rxdata_llr1.m","llr1", PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->llr[1],re_allocated*2,1,0);