updated code for crnti update during handover and reset of the mac

srsenb/src/stack/mac/mac.cc

@@ -257,20 +257,19 @@ int mac::ue_rem(uint16_t rnti)
 // Called after Msg3
 int mac::ue_set_crnti(uint16_t temp_crnti, uint16_t crnti, sched_interface::ue_cfg_t* cfg)
 {
-  int ret = ue_cfg(crnti, cfg);
-  if (ret != SRSLTE_SUCCESS) {
-    return ret;
-  }
   srslte::rwlock_read_guard lock(rwlock);
-  if (temp_crnti == crnti) {
+  if (temp_crnti != crnti) {
     // if RNTI is maintained, Msg3 contained a RRC Setup Request
-    scheduler.dl_mac_buffer_state(crnti, (uint32_t)srslte::dl_sch_lcid::CON_RES_ID);
-  } else {
     // C-RNTI corresponds to older user. Handover scenario.
     phy_h->rem_rnti(crnti);
     phy_h->add_rnti(crnti, cfg->supported_cc_list[0].enb_cc_idx, false);
-    scheduler.dl_mac_buffer_state(crnti, (uint32_t)srslte::dl_sch_lcid::CON_RES_ID);
+    ue_db[crnti]->reset();
+  }
+  int ret = ue_cfg(crnti, cfg);
+  if (ret != SRSLTE_SUCCESS) {
+    return ret;
   }
+  scheduler.dl_mac_buffer_state(crnti, (uint32_t)srslte::dl_sch_lcid::CON_RES_ID);
   return ret;
 }
 

srsenb/src/stack/mac/ue.cc

@@ -107,6 +107,15 @@ void ue::reset()
       srslte_softbuffer_tx_reset(&buffer);
     }
   }
+
+  for (auto& cc_buffers : pending_buffers) {
+    for (auto& harq_buffer : cc_buffers) {
+      if (harq_buffer) {
+        pdus.deallocate(harq_buffer);
+        harq_buffer = nullptr;
+      }
+    }
+  }
 }
 
 /**