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Trigger F1 UE context release if no UE context in RRC

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This commit is contained in:
Robert Schmidt
2024-12-16 16:16:43 +01:00
parent c80821e578
commit f804a355ad
2 changed files with 30 additions and 16 deletions
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executables/nr-cuup.c
+3
View File
@@ -145,6 +145,9 @@ f1ap_cudu_inst_t *getCxt(instance_t instanceP)
return &fake;
}
configmodule_interface_t *uniqCfg = NULL;
void rrc_gNB_send_NGAP_UE_CONTEXT_RELEASE_COMPLETE(instance_t instance, uint32_t gNB_ue_ngap_id) { };
int main(int argc, char **argv)
{
/// static configuration for NR at the moment
openair2/RRC/NR/rrc_gNB.c
+27 -16
View File
@@ -106,6 +106,21 @@ extern RAN_CONTEXT_t RC;
mui_t rrc_gNB_mui = 0;
typedef struct deliver_ue_ctxt_release_data_t {
gNB_RRC_INST *rrc;
f1ap_ue_context_release_cmd_t *release_cmd;
sctp_assoc_t assoc_id;
} deliver_ue_ctxt_release_data_t;
static void rrc_deliver_ue_ctxt_release_cmd(void *deliver_pdu_data, ue_id_t ue_id, int srb_id, char *buf, int size, int sdu_id)
{
DevAssert(deliver_pdu_data != NULL);
deliver_ue_ctxt_release_data_t *data = deliver_pdu_data;
data->release_cmd->rrc_container = (uint8_t*) buf;
data->release_cmd->rrc_container_length = size;
data->rrc->mac_rrc.ue_context_release_command(data->assoc_id, data->release_cmd);
}
///---------------------------------------------------------------------------------------------------------------///
///---------------------------------------------------------------------------------------------------------------///
@@ -1974,8 +1989,18 @@ static void rrc_CU_process_ue_context_release_request(MessageDef *msg_p, sctp_as
rrc_gNB_ue_context_t *ue_context_p = rrc_gNB_get_ue_context(rrc, req->gNB_CU_ue_id);
// TODO what happens if no AMF connected? should also handle, set an_release true
if (!ue_context_p) {
LOG_E(RRC, "could not find UE context for CU UE ID %u, aborting transaction\n", req->gNB_CU_ue_id);
// TODO just request the DU to release to make it happy
LOG_W(RRC, "could not find UE context for CU UE ID %u: auto-generate release command\n", req->gNB_CU_ue_id);
uint8_t buffer[RRC_BUF_SIZE] = {0};
int size = do_NR_RRCRelease(buffer, RRC_BUF_SIZE, rrc_gNB_get_next_transaction_identifier(0));
f1ap_ue_context_release_cmd_t ue_context_release_cmd = {
.gNB_CU_ue_id = req->gNB_CU_ue_id,
.gNB_DU_ue_id = req->gNB_DU_ue_id,
.cause = F1AP_CAUSE_RADIO_NETWORK,
.cause_value = 10, // 10 = F1AP_CauseRadioNetwork_normal_release
.srb_id = DCCH,
};
deliver_ue_ctxt_release_data_t data = {.rrc = rrc, .release_cmd = &ue_context_release_cmd};
nr_pdcp_data_req_srb(req->gNB_CU_ue_id, DCCH, rrc_gNB_mui++, size, buffer, rrc_deliver_ue_ctxt_release_cmd, &data);
return;
}
@@ -2645,20 +2670,6 @@ void rrc_gNB_generate_SecurityModeCommand(gNB_RRC_INST *rrc, gNB_RRC_UE_t *ue_p)
nr_rrc_transfer_protected_rrc_message(rrc, ue_p, DL_SCH_LCID_DCCH, buffer, size);
}
typedef struct deliver_ue_ctxt_release_data_t {
gNB_RRC_INST *rrc;
f1ap_ue_context_release_cmd_t *release_cmd;
sctp_assoc_t assoc_id;
} deliver_ue_ctxt_release_data_t;
static void rrc_deliver_ue_ctxt_release_cmd(void *deliver_pdu_data, ue_id_t ue_id, int srb_id, char *buf, int size, int sdu_id)
{
DevAssert(deliver_pdu_data != NULL);
deliver_ue_ctxt_release_data_t *data = deliver_pdu_data;
data->release_cmd->rrc_container = (uint8_t*) buf;
data->release_cmd->rrc_container_length = size;
data->rrc->mac_rrc.ue_context_release_command(data->assoc_id, data->release_cmd);
}
//-----------------------------------------------------------------------------
/*
* Generate the RRC Connection Release to UE.