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F1AP: handle UE Context Release Request

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This commit is contained in:
Robert Schmidt
2023-05-25 18:20:45 +02:00
parent d236d92a3a
commit cfbeaf68c9
1 changed files with 23 additions and 14 deletions
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openair2/F1AP/f1ap_cu_ue_context_management.c
+23 -14
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@@ -776,10 +776,10 @@ int CU_handle_UE_CONTEXT_SETUP_FAILURE(instance_t instance,
AssertFatal(1==0,"Not implemented yet\n");
}
int CU_handle_UE_CONTEXT_RELEASE_REQUEST(instance_t instance,
uint32_t assoc_id,
uint32_t stream,
F1AP_F1AP_PDU_t *pdu) {
int CU_handle_UE_CONTEXT_RELEASE_REQUEST(instance_t instance, uint32_t assoc_id, uint32_t stream, F1AP_F1AP_PDU_t *pdu)
{
MessageDef *msg = itti_alloc_new_message(TASK_CU_F1, 0, F1AP_UE_CONTEXT_RELEASE_REQ);
f1ap_ue_context_release_req_t *req = &F1AP_UE_CONTEXT_RELEASE_REQ(msg);
F1AP_UEContextReleaseRequest_t *container;
F1AP_UEContextReleaseRequestIEs_t *ie;
DevAssert(pdu);
@@ -789,6 +789,8 @@ int CU_handle_UE_CONTEXT_RELEASE_REQUEST(instance_t instance,
F1AP_ProtocolIE_ID_id_gNB_CU_UE_F1AP_ID, true);
const rnti_t rnti = f1ap_get_rnti_by_cu_id(true, instance,
ie->value.choice.GNB_CU_UE_F1AP_ID);
req->rnti = rnti;
/* GNB_DU_UE_F1AP_ID */
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextReleaseRequestIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_gNB_DU_UE_F1AP_ID, true);
@@ -796,35 +798,42 @@ int CU_handle_UE_CONTEXT_RELEASE_REQUEST(instance_t instance,
ie->value.choice.GNB_DU_UE_F1AP_ID);
AssertFatal(rnti == rnti2, "RNTI obtained through DU ID (%x) is different from CU ID (%x)\n",
rnti2, rnti);
/* Cause */
/* We don't care for the moment
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextReleaseRequestIEs_t, ie, container,
F1AP_ProtocolIE_ID_id_Cause, true);
switch(ie->value.choice.Cause.present)
{
case F1AP_Cause_PR_radioNetwork:
//ie->value.choice.Cause.choice.radioNetwork
req->cause = F1AP_CAUSE_RADIO_NETWORK;
req->cause_value = ie->value.choice.Cause.choice.radioNetwork;
break;
case F1AP_Cause_PR_transport:
//ie->value.choice.Cause.choice.transport
req->cause = F1AP_CAUSE_TRANSPORT;
req->cause_value = ie->value.choice.Cause.choice.transport;
break;
case F1AP_Cause_PR_protocol:
//ie->value.choice.Cause.choice.protocol
req->cause = F1AP_CAUSE_PROTOCOL;
req->cause_value = ie->value.choice.Cause.choice.protocol;
break;
case F1AP_Cause_PR_misc:
//ie->value.choice.Cause.choice.misc
req->cause = F1AP_CAUSE_MISC;
req->cause_value = ie->value.choice.Cause.choice.misc;
break;
case F1AP_Cause_PR_NOTHING:
default:
req->cause = F1AP_CAUSE_NOTHING;
break;
}
*/
LOG_I(F1AP, "Received UE CONTEXT RELEASE REQUEST: Trigger RRC for RNTI %x\n", rnti);
if (f1ap_req(true, instance)->cell_type==CELL_MACRO_GNB) {
AssertFatal(false,"must be devlopped\n");
}
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_UEContextReleaseRequestIEs_t, ie, container, F1AP_ProtocolIE_ID_id_targetCellsToCancel, false);
if (ie != NULL) {
LOG_W(F1AP, "ignoring list of target cells to cancel in UE Context Release Request: implementation missing\n");
}
itti_send_msg_to_task(TASK_RRC_GNB, instance, msg);
return 0;
}