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gNB RRC: Shorten time till UE is removed for RRCRelease

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This commit is contained in:
Robert Schmidt
2023-03-31 17:23:03 +02:00
parent a6149386dc
commit c4a9f0ea03
1 changed files with 9 additions and 0 deletions
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openair2/RRC/NR/rrc_gNB.c
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@@ -3687,6 +3687,15 @@ rrc_gNB_generate_RRCRelease(
rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_COMPLETE(ctxt_pP->instance, ue_context_pP->ue_context.gNB_ue_ngap_id); rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_COMPLETE(ctxt_pP->instance, ue_context_pP->ue_context.gNB_ue_ngap_id);
ue_context_pP->ue_context.ue_release_timer_rrc = 1; ue_context_pP->ue_context.ue_release_timer_rrc = 1;
/* TODO: 38.331 says for RRC Release that the UE should release everything
* after 60ms or if lower layers acked receipt of release. Hence, from the
* gNB POV, we can free the UE's RRC context as soon as we sent the msg.
* Currently, without the F1 interface, the ue_release timer expiration also
* triggers MAC, so we give it some time. If we send an F1 UE Context release
* message, we can free it immediately. The MAC should release it after these
* 60ms, or the ack of the DLSCH transmission. */
ue_context_pP->ue_context.ue_release_timer_thres_rrc = 5;
LOG_I(RRC, "delaying UE %ld context removal by 5ms\n", ctxt_pP->rntiMaybeUEid);
if (NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) { if (NODE_IS_CU(RC.nrrrc[ctxt_pP->module_id]->node_type)) {
uint8_t *message_buffer = itti_malloc (TASK_RRC_GNB, TASK_CU_F1, size); uint8_t *message_buffer = itti_malloc (TASK_RRC_GNB, TASK_CU_F1, size);