MIMO 4x4 with 1 layer test commit

openair1/PHY/INIT/nr_parms.c

@@ -335,7 +335,7 @@ int nr_init_frame_parms_ue(NR_DL_FRAME_PARMS *fp,
   int     Ncp               = NORMAL;
 
   if(fp->nb_antennas_rx == 0)
-    fp->nb_antennas_rx = 1;
+    fp->nb_antennas_rx = 4;
   if(fp->nb_antennas_tx == 0)
     fp->nb_antennas_tx = 1;
 

openair1/PHY/NR_TRANSPORT/nr_dlsch.c

@@ -414,10 +414,10 @@ uint8_t nr_generate_pdsch(PHY_VARS_gNB *gNB,
 
     ///Layer Precoding and Antenna port mapping
     // tx_layers 1-8 are mapped on antenna ports 1000-1007
-    uint8_t pmi = 2;
+    uint8_t pmi = 6;
 
     for (int ap=0; ap<frame_parms->nb_antennas_tx; ap++) {
-      char *W_prec = nr_W_1l_2p[pmi][ap];//nr_W_1l_4p, nr_W_2l_2p, nr_W_2l_4p, nr_W_3l_4p, and nr_W_4l_4p
+      char *W_prec = nr_W_1l_4p[pmi][ap];//nr_W_1l_4p, nr_W_2l_2p, nr_W_2l_4p, nr_W_3l_4p, and nr_W_4l_4p
       for (int l=rel15->StartSymbolIndex; l<rel15->StartSymbolIndex+rel15->NrOfSymbols; l++) {
         uint16_t k = start_sc;
 

targets/PROJECTS/GENERIC-LTE-EPC/CONF/gnb.band78.tm1.106PRB.usrpn300.conf

@@ -23,7 +23,7 @@ gNBs =
     ////////// Physical parameters:
 
     ssb_SubcarrierOffset                                      = 0;
-    pdsch_AntennaPorts                                        = 1;
+    pdsch_AntennaPorts                                        = 4;
 
     servingCellConfigCommon = (
     {
@@ -240,7 +240,7 @@ L1s = (
 RUs = (
     {		  
        local_rf       = "yes"
-         nb_tx          = 1
+         nb_tx          = 4
          nb_rx          = 1
          att_tx         = 0
          att_rx         = 0;
@@ -253,9 +253,9 @@ RUs = (
          ##beamforming 1x4 matrix: 1 layer x 4 antennas
          #bf_weights = [0x00007fff, 0x0000,0x0000, 0x0000];
          ## beamforming 2x2 matrix:
-          bf_weights = [0x00007fff, 0x00000000, 0x00000000, 0x00007fff];
+         # bf_weights = [0x00007fff, 0x00000000, 0x00000000, 0x00007fff];
          ## beamforming 4x4 matrix:
-         #bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000, 0x00000000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff];
+         bf_weights = [0x00007fff, 0x0000, 0x0000, 0x0000, 0x00000000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff, 0x0000, 0x0000, 0x0000, 0x0000, 0x00007fff];
 
          sdr_addrs = "addr=192.168.10.2,mgmt_addr=192.168.10.2,second_addr=192.168.20.2";
          clock_src = "external";