usrp 20 MHz on 30.72 master clock. fixed memory leak in prach.c for 20 MHz...

usrp 20 MHz on 30.72 master clock. fixed memory leak in prach.c for 20 MHz with 3/4 sampling. added default attributes to threads in lte-enb.c

openair1/PHY/LTE_TRANSPORT/prach.c

@@ -1161,6 +1161,9 @@ void rx_prach(PHY_VARS_eNB *eNB,
     break;
   }
 
+  if (eNB->frame_parms.threequarter_fs == 1)
+    Ncp=(Ncp*3)>>2;
+
   switch (eNB->frame_parms.N_RB_UL) {
   case 6:
     Ncp>>=4;
@@ -1258,6 +1261,7 @@ void rx_prach(PHY_VARS_eNB *eNB,
 	break;
 	
       case 100:
+	if (eNB->frame_parms.threequarter_fs==0) {
 	  if (prach_fmt == 4) {
 	    dft4096(prach2,rxsigF[aa],1);
 	  } else {
@@ -1266,6 +1270,16 @@ void rx_prach(PHY_VARS_eNB *eNB,
 	    if (prach_fmt>1)
 	      dft24576(prach2+49152,rxsigF[aa]+49152);
 	  }
+	} else {
+	  if (prach_fmt == 4) {
+	    dft3072(prach2,rxsigF[aa]);
+	  } else {
+	    dft18432(prach2,rxsigF[aa]);
+	    
+	    if (prach_fmt>1)
+	      dft18432(prach2+36864,rxsigF[aa]+36864);
+	  }
+	}
 	
 	break;
       }

targets/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp

@@ -610,7 +610,7 @@ extern "C" {
 
     switch ((int)openair0_cfg[0].sample_rate) {
     case 30720000:
-      s->usrp->set_master_clock_rate(61.44e6);
+      s->usrp->set_master_clock_rate(30.72e6);
       openair0_cfg[0].tx_sample_advance     = 115;
       openair0_cfg[0].tx_bw                 = 20e6;
       openair0_cfg[0].rx_bw                 = 20e6;

targets/RT/USER/lte-enb.c

@@ -1371,6 +1371,14 @@ void init_eNB_proc(int inst) {
     pthread_cond_init( &proc->cond_prach, NULL);
     pthread_cond_init( &proc->cond_FH, NULL);
     pthread_cond_init( &proc->cond_asynch_rxtx, NULL);
+
+    pthread_attr_init( &proc->attr_FH);
+    pthread_attr_init( &proc->attr_prach);
+    pthread_attr_init( &proc->attr_asynch_rxtx);
+    pthread_attr_init( &proc->attr_single);
+    pthread_attr_init( &proc->attr_fep);
+    pthread_attr_init( &proc_rxtx[0].attr_rxtx);
+    pthread_attr_init( &proc_rxtx[1].attr_rxtx);
 #ifndef DEADLINE_SCHEDULER
     attr0       = &proc_rxtx[0].attr_rxtx;
     attr1       = &proc_rxtx[1].attr_rxtx;