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Changing handle UE context release to send release access bearer request instead od delte session request.

This commit is contained in:
Pedro Alvarez 2018-03-08 15:55:53 +00:00
parent 2b84e78389
commit 6583d6b2e5
2 changed files with 16 additions and 20 deletions
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2
srsepc/hdr/mme/s1ap_common.h
View File

@ -146,7 +146,7 @@ typedef struct{
uint32_t enb_ue_s1ap_id;
uint32_t mme_ue_s1ap_id;
struct sctp_sndrcvinfo enb_sri;
ecm_state_t ecm_state;
ecm_state_t state;
srslte::gtpc_f_teid_ie sgw_ctrl_fteid;
erab_ctx_t erabs_ctx[MAX_ERABS_PER_UE];
bool eit;

34
srsepc/src/mme/s1ap_ctx_mngmt_proc.cc
View File

@ -262,38 +262,34 @@ s1ap_ctx_mngmt_proc::handle_ue_context_release_request(LIBLTE_S1AP_MESSAGE_UECON
m_s1ap_log->info("Received UE Context Release Request. MME-UE S1AP Id: %d\n", mme_ue_s1ap_id);
m_s1ap_log->console("Received UE Context Release Request. MME-UE S1AP Id %d\n", mme_ue_s1ap_id);
ue_ecm_ctx_t *ue_ecm_ctx = m_s1ap->find_ue_ecm_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id);
if(ue_ecm_ctx == NULL)
ue_ecm_ctx_t *ecm_ctx = m_s1ap->find_ue_ecm_ctx_from_mme_ue_s1ap_id(mme_ue_s1ap_id);
if(ecm_ctx == NULL)
{
m_s1ap_log->info("UE not found. MME-UE S1AP Id: %d\n", mme_ue_s1ap_id);
m_s1ap_log->info("No UE ECM context to release found. MME-UE S1AP Id: %d\n", mme_ue_s1ap_id);
m_s1ap_log->console("No UE ECM context to release found. MME-UE S1AP Id: %d\n", mme_ue_s1ap_id);
return false;
}
//Delete any context at the SPGW
bool active = false;
for(int i=0;i<MAX_ERABS_PER_UE;i++)
//Delete user plane context at the SPGW (but keep GTP-C connection).
if (ecm_ctx->state == ECM_STATE_CONNECTED)
{
if(ue_ecm_ctx->erabs_ctx[i].state != ERAB_DEACTIVATED) //FIXME use ECM state
{
active = true;
//ue_ctx->erabs_ctx[i].state = ERAB_DEACTIVATED;
break;
}
//There are active E-RABs, send release access mearers request
m_mme_gtpc->send_release_access_bearers_request(ecm_ctx->imsi);
}
if(active == true)
else
{
//There are active E-RABs, send delete session request
m_mme_gtpc->send_delete_session_request(ue_ecm_ctx->imsi);
//No ECM Context to release
m_s1ap_log->info("UE is not ECM connected. No need to release S1-U. MME UE S1AP Id %d\n", mme_ue_s1ap_id);
m_s1ap_log->console("UE is not ECM connected. No need to release S1-U. MME UE S1AP Id %d\n", mme_ue_s1ap_id);
}
//m_s1ap->delete_ue_ctx(ue_ctx);
for(int i=0;i<MAX_ERABS_PER_UE;i++)
{
ue_ecm_ctx->erabs_ctx[i].state = ERAB_DEACTIVATED;
ecm_ctx->erabs_ctx[i].state = ERAB_DEACTIVATED;
}
//Delete UE context
m_s1ap->delete_ue_ecm_ctx(ue_ecm_ctx->mme_ue_s1ap_id);
m_s1ap_log->info("Deleted UE Context.\n");
m_s1ap->delete_ue_ecm_ctx(ecm_ctx->mme_ue_s1ap_id);
m_s1ap_log->info("Deleted UE ECM Context.\n");
return true;
}