adding support for beam selection in usrp_lib

2020-01-27 11:13:06 +01:00
parent 8dac3a46c9
commit 615f365b37
2 changed files with 42 additions and 18 deletions
@@ -754,6 +754,10 @@ void tx_rf(RU_t *ru,int frame,int slot, uint64_t timestamp) {
        nextslot_type == NR_UPLINK_SLOT) {
      flags = 3; // end of burst
    }
+
+    // the beam index is written in bits 8-10 of the flags
+    // the following choice cycles through the beams every slot, starting with beam 3
+    flags |= ((3+slot)&7)<<8;
   
    VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_WRITE_FLAGS, flags ); 
    VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_FRAME_NUMBER_TX0_RU, frame );