Increased RLC UL buffer size

lib/src/upper/rlc_entity.cc

@@ -43,7 +43,7 @@ void rlc_entity::init(rlc_mode_t                   mode_,
 {
 
   if (buffer_size <= 0) {
-    buffer_size = 16;
+    buffer_size = 64;
   }
   // Create the RLC instance the first time init() is called.
   // If called to reestablished, the entity is stopped but not destroyed

srsenb/hdr/mac/scheduler_ue.h

@@ -111,6 +111,7 @@ public:
   uint32_t   get_pending_ul_old_data();
   uint32_t   get_pending_dl_new_data_total(uint32_t tti);
 
+  void          reset_timeout_dl_harq(uint32_t tti);
   dl_harq_proc *get_pending_dl_harq(uint32_t tti);
   dl_harq_proc *get_empty_dl_harq();   
   ul_harq_proc *get_ul_harq(uint32_t tti);   

srsenb/rr.conf.example

@@ -9,7 +9,7 @@ mac_cnfg =
   ulsch_cnfg = 
   {
     max_harq_tx = 4;
-    periodic_bsr_timer = 40; // in ms 
+    periodic_bsr_timer = 20; // in ms
     retx_bsr_timer = 320;   // in ms
   };
   
@@ -26,9 +26,9 @@ phy_cnfg =
 
   pusch_cnfg_ded =
   {
-    beta_offset_ack_idx = 10;
+    beta_offset_ack_idx = 6;
-    beta_offset_ri_idx  = 5;
+    beta_offset_ri_idx  = 6;
-    beta_offset_cqi_idx = 10;
+    beta_offset_cqi_idx = 6;
   };
   
   // PUCCH-SR resources are scheduled on time-frequeny domain first, then multiplexed in the same resource. 

srsenb/sib.conf.example

@@ -47,13 +47,13 @@ sib2 =
                 high_speed_flag = false;
                 prach_config_index = 3;
                 prach_freq_offset = 2;
-                zero_correlation_zone_config = 11;
+                zero_correlation_zone_config = 5;
             };
         };
         pdsch_cnfg = 
         {
             p_b = 0; 
-            rs_power = -10;
+            rs_power = 0;
         };
         pusch_cnfg = 
         {

srsenb/src/mac/mac.cc

@@ -332,7 +332,7 @@ int mac::ack_info(uint32_t tti, uint16_t rnti, uint32_t tb_idx, bool ack)
   if (ack) {
     if (nof_bytes > 64) { // do not count RLC status messages only
       rrc_h->set_activity_user(rnti);
-      log_h->info("DL activity rnti=0x%x, n_bytes=%d\n", rnti, nof_bytes);
+      log_h->debug("DL activity rnti=0x%x, n_bytes=%d\n", rnti, nof_bytes);
     }
   }
   pthread_rwlock_unlock(&rwlock);

srsenb/src/mac/scheduler.cc

@@ -679,8 +679,14 @@ int sched::dl_sched_data(dl_sched_data_t data[MAX_DATA_LIST])
         }
         Warning("SCHED: Could not schedule DL DCI for rnti=0x%x, pid=%d, cfi=%d\n", rnti, h->get_id(), current_cfi);
       }      
-    }    
+    }
-  } 
+
+    // Reset blocked PIDs
+    user->reset_timeout_dl_harq(current_tti);
+
+  }
+
+
   
   return nof_data_elems; 
 } 

srsenb/src/mac/scheduler_ue.cc

@@ -383,7 +383,7 @@ void sched_ue::ul_recv_len(uint32_t lcid, uint32_t len)
       if (lch[lcid].bsr > (int) len) {
         lch[lcid].bsr -= len;
       } else {
-        lch[lcid].bsr = 0; 
+        lch[lcid].bsr = 0;
       }
     }
   }
@@ -987,6 +987,19 @@ bool sched_ue::is_sr_triggered()
   return sr; 
 }
 
+void sched_ue::reset_timeout_dl_harq(uint32_t tti) {
+  for (int i=0;i<SCHED_MAX_HARQ_PROC;i++) {
+    if (!(dl_harq[i].is_empty(0) && dl_harq[i].is_empty(1))) {
+      log_h->info("SCHED: pid=%d is empty\n", i);
+      if (srslte_tti_interval(tti, dl_harq[i].get_tti()) > 50) {
+        log_h->info("SCHED: pid=%d is old. tti_pid=%d, now is %d, resetting\n", i, dl_harq[i].get_tti(), tti);
+        dl_harq[i].reset(0);
+        dl_harq[i].reset(1);
+      }
+    }
+  }
+}
+
 /* Gets HARQ process with oldest pending retx */
 dl_harq_proc* sched_ue::get_pending_dl_harq(uint32_t tti)
 {

srsenb/src/mac/ue.cc

@@ -188,12 +188,12 @@ void ue::process_pdu(uint8_t* pdu, uint32_t nof_bytes, srslte::pdu_queue::channe
       }
 
       // Indicate scheduler to update BSR counters 
-      sched->ul_recv_len(rnti, mac_msg_ul.get()->get_sdu_lcid(), mac_msg_ul.get()->get_payload_size());
+      //sched->ul_recv_len(rnti, mac_msg_ul.get()->get_sdu_lcid(), mac_msg_ul.get()->get_payload_size());
 
       // Indicate RRC about successful activity if valid RLC message is received
       if (mac_msg_ul.get()->get_payload_size() > 64) { // do not count RLC status messages only
         rrc->set_activity_user(rnti);
-        log_h->info("UL activity rnti=0x%x, n_bytes=%d\n", rnti, nof_bytes);
+        log_h->debug("UL activity rnti=0x%x, n_bytes=%d\n", rnti, nof_bytes);
       }
 
       if ((int) mac_msg_ul.get()->get_payload_size() > most_data) {

srsue/src/mac/proc_bsr.cc

@@ -209,7 +209,11 @@ bool bsr_proc::generate_bsr(bsr_t *bsr, uint32_t nof_padding_bytes) {
     if (nof_lcg > 1) {
       bsr->format = LONG_BSR;
     }  
-  }     
+  }
+  Info("BSR:   Type %s, Format %s, Value=%d,%d,%d,%d\n",
+       bsr_type_tostring(triggered_bsr_type), bsr_format_tostring(bsr->format),
+       bsr->buff_size[0], bsr->buff_size[1], bsr->buff_size[2], bsr->buff_size[3]);
+
   return ret; 
 }
 
@@ -337,10 +341,7 @@ bool bsr_proc::generate_padding_bsr(uint32_t nof_padding_bytes, bsr_t *bsr)
     }
     generate_bsr(bsr, nof_padding_bytes);
     ret = true; 
-    Info("BSR:   Type %s, Format %s, Value=%d,%d,%d,%d\n", 
+
-         bsr_type_tostring(triggered_bsr_type), bsr_format_tostring(bsr->format), 
-         bsr->buff_size[0], bsr->buff_size[1], bsr->buff_size[2], bsr->buff_size[3]);
-    
     if (timers_db->get(timer_periodic_id)->get_timeout() && bsr->format != TRUNC_BSR) {
       timers_db->get(timer_periodic_id)->reset();
       timers_db->get(timer_periodic_id)->run();