From 5181d07c8a7b62de9cb6f21862edcc6223bf1b0b Mon Sep 17 00:00:00 2001
From: yagoda <justin.tallon@softwareradiosystems.com>
Date: Fri, 11 Mar 2022 00:04:11 +0100
Subject: [PATCH] mac: fixing pdcch order bug, dont send if rnti is not in
 ue_db

---
 srsenb/src/stack/mac/mac.cc | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/srsenb/src/stack/mac/mac.cc b/srsenb/src/stack/mac/mac.cc
index b3cf9e407..e56f0e879 100644
--- a/srsenb/src/stack/mac/mac.cc
+++ b/srsenb/src/stack/mac/mac.cc
@@ -776,17 +776,20 @@ int mac::get_dl_sched(uint32_t tti_tx_dl, dl_sched_list_t& dl_sched_res_list)
 
     // Copy PDCCH order grants
     for (uint32_t i = 0; i < sched_result.po.size(); i++) {
-      // Copy dci info
-      dl_sched_res->pdsch[n].dci = sched_result.po[i].dci;
-
-      if (pcap) {
-        pcap->write_dl_pch(dl_sched_res->pdsch[n].data[0], sched_result.po[i].tbs, true, tti_tx_dl, enb_cc_idx);
-      }
-      if (pcap_net) {
-        pcap_net->write_dl_pch(dl_sched_res->pdsch[n].data[0], sched_result.po[i].tbs, true, tti_tx_dl, enb_cc_idx);
+      uint16_t rnti = sched_result.po[i].dci.rnti;
+      if (ue_db.contains(rnti)) {
+        // Copy dci info
+        dl_sched_res->pdsch[n].dci = sched_result.po[i].dci;
+        if (pcap) {
+          pcap->write_dl_pch(dl_sched_res->pdsch[n].data[0], sched_result.po[i].tbs, true, tti_tx_dl, enb_cc_idx);
+        }
+        if (pcap_net) {
+          pcap_net->write_dl_pch(dl_sched_res->pdsch[n].data[0], sched_result.po[i].tbs, true, tti_tx_dl, enb_cc_idx);
+        }
+        n++;
+      } else {
+        logger.warning("Invalid PDCCH order scheduling result. User 0x%x does not exist", rnti);
       }
-
-      n++;
     }
 
     dl_sched_res->nof_grants = n;