added check for cfi in srslte_ue_dl_find_ul_dci

srslte/lib/phch/dci.c

@@ -65,7 +65,7 @@ int srslte_dci_msg_to_dl_grant(srslte_dci_msg_t *msg, uint16_t msg_rnti,
     //srslte_dci_format_t tmp = msg->format; 
     ret = srslte_dci_msg_unpack_pdsch(msg, dl_dci, nof_prb, nof_ports, crc_is_crnti);
     if (ret) {
-      //fprintf(stderr, "Can't unpack DCI message %s (%d)\n", srslte_dci_format_string(tmp), tmp);
+      fprintf(stderr, "Can't unpack DCI message %s (%d)\n", srslte_dci_format_string(msg->format), msg->format);
       return ret;
     } 
     

srslte/lib/ue/ue_dl.c

@@ -376,7 +376,7 @@ static int dci_blind_search(srslte_ue_dl_t *q, dci_blind_search_t *search_space,
 
 int srslte_ue_dl_find_ul_dci(srslte_ue_dl_t *q, uint32_t cfi, uint32_t sf_idx, uint16_t rnti, srslte_dci_msg_t *dci_msg)
 {
-  if (rnti) {
+  if (rnti && cfi > 1 && cfi < 4) {
     /* Do not search if an UL DCI is already pending */    
     if (q->pending_ul_dci_rnti == rnti) {
       q->pending_ul_dci_rnti = 0;