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Additional RRC procedures (RRCConnectionReconfiguration) for dedicated bearer estatblishment triggered by S1AP messages.

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eNB mac scheduler for dedicated DTCH.
UE MAC logical channel prioritization with additional DTCH.
S1AP messages for dedicated bearer establishment (eNB and UE).
This commit is contained in:
Navid Nikaein
2015-11-09 12:03:11 +01:00
parent 916008f47d
commit 2a30567223
15 changed files with 945 additions and 241 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair3/S1AP/s1ap_eNB.c
+6
View File
@@ -328,6 +328,12 @@ void *s1ap_eNB_task(void *arg)
}
break;
case S1AP_E_RAB_SETUP_RESP: {
s1ap_eNB_e_rab_setup_resp(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_E_RAB_SETUP_RESP(received_msg));
}
break;
case S1AP_NAS_NON_DELIVERY_IND: {
s1ap_eNB_nas_non_delivery_ind(ITTI_MESSAGE_GET_INSTANCE(received_msg),
&S1AP_NAS_NON_DELIVERY_IND(received_msg));
openair3/S1AP/s1ap_eNB_decoder.c
+8
View File
@@ -120,6 +120,14 @@ static int s1ap_eNB_decode_initiating_message(s1ap_message *message,
break;
case S1ap_ProcedureCode_id_E_RABSetup:
ret = s1ap_decode_s1ap_e_rabsetuprequesties(
&message->msg.s1ap_E_RABSetupRequestIEs, &initiating_p->value);
s1ap_xer_print_s1ap_paging(s1ap_xer__print2sp, message_string, message);
//message_id = S1AP_E_RABSETUP_REQ_LOG;
S1AP_ERROR("TODO E_RABSetup initiating message\n");
free(message_string);
break;
default:
S1AP_ERROR("Unknown procedure ID (%d) for initiating message\n",
(int)initiating_p->procedureCode);
openair3/S1AP/s1ap_eNB_handlers.c
+112 -1
View File
@@ -82,6 +82,13 @@ int s1ap_eNB_handle_ue_context_release_command(uint32_t assoc_id,
uint32_t stream,
struct s1ap_message_s *s1ap_message_p);
static
int s1ap_eNB_handle_e_rab_setup_request(uint32_t assoc_id,
uint32_t stream,
struct s1ap_message_s *s1ap_message_p);
/* Handlers matrix. Only eNB related procedure present here */
s1ap_message_decoded_callback messages_callback[][3] = {
{ 0, 0, 0 }, /* HandoverPreparation */
@@ -89,7 +96,7 @@ s1ap_message_decoded_callback messages_callback[][3] = {
{ 0, 0, 0 }, /* HandoverNotification */
{ 0, 0, 0 }, /* PathSwitchRequest */
{ 0, 0, 0 }, /* HandoverCancel */
{ 0, 0, 0 }, /* E_RABSetup */
{ s1ap_eNB_handle_e_rab_setup_request, 0, 0 }, /* E_RABSetup */
{ 0, 0, 0 }, /* E_RABModify */
{ 0, 0, 0 }, /* E_RABRelease */
{ 0, 0, 0 }, /* E_RABReleaseIndication */
@@ -872,3 +879,107 @@ int s1ap_eNB_handle_ue_context_release_command(uint32_t assoc_id,
}
}
static
int s1ap_eNB_handle_e_rab_setup_request(uint32_t assoc_id,
uint32_t stream,
struct s1ap_message_s *s1ap_message_p) {
int i;
s1ap_eNB_mme_data_t *mme_desc_p = NULL;
s1ap_eNB_ue_context_t *ue_desc_p = NULL;
MessageDef *message_p = NULL;
S1ap_E_RABSetupRequestIEs_t *s1ap_E_RABSetupRequest;
DevAssert(s1ap_message_p != NULL);
s1ap_E_RABSetupRequest = &s1ap_message_p->msg.s1ap_E_RABSetupRequestIEs;
if ((mme_desc_p = s1ap_eNB_get_MME(NULL, assoc_id, 0)) == NULL) {
S1AP_ERROR("[SCTP %d] Received initial context setup request for non "
"existing MME context\n", assoc_id);
return -1;
}
if ((ue_desc_p = s1ap_eNB_get_ue_context(mme_desc_p->s1ap_eNB_instance,
s1ap_E_RABSetupRequest->eNB_UE_S1AP_ID)) == NULL) {
S1AP_ERROR("[SCTP %d] Received initial context setup request for non "
"existing UE context 0x%06x\n", assoc_id,
s1ap_E_RABSetupRequest->eNB_UE_S1AP_ID);
return -1;
}
/* Initial context request = UE-related procedure -> stream != 0 */
if (stream == 0) {
S1AP_ERROR("[SCTP %d] Received UE-related procedure on stream (%d)\n",
assoc_id, stream);
return -1;
}
ue_desc_p->rx_stream = stream;
if ( ue_desc_p->mme_ue_s1ap_id != s1ap_E_RABSetupRequest->mme_ue_s1ap_id){
S1AP_WARN("UE context mme_ue_s1ap_id is different form that of the message (%d != %d)",
ue_desc_p->mme_ue_s1ap_id, s1ap_E_RABSetupRequest->mme_ue_s1ap_id);
}
message_p = itti_alloc_new_message(TASK_S1AP, S1AP_E_RAB_SETUP_REQ);
S1AP_E_RAB_SETUP_REQ(message_p).ue_initial_id = ue_desc_p->ue_initial_id;
S1AP_E_RAB_SETUP_REQ(message_p).mme_ue_s1ap_id = s1ap_E_RABSetupRequest->mme_ue_s1ap_id;
S1AP_E_RAB_SETUP_REQ(message_p).eNB_ue_s1ap_id = s1ap_E_RABSetupRequest->eNB_UE_S1AP_ID;
S1AP_E_RAB_SETUP_REQ(message_p).nb_e_rabs_tosetup =
s1ap_E_RABSetupRequest->e_RABToBeSetupListBearerSUReq.s1ap_E_RABToBeSetupItemBearerSUReq.count;
for (i = 0; i < s1ap_E_RABSetupRequest->e_RABToBeSetupListBearerSUReq.s1ap_E_RABToBeSetupItemBearerSUReq.count; i++) {
S1ap_E_RABToBeSetupItemBearerSUReq_t *item_p;
item_p = (S1ap_E_RABToBeSetupItemBearerSUReq_t *)s1ap_E_RABSetupRequest->e_RABToBeSetupListBearerSUReq.s1ap_E_RABToBeSetupItemBearerSUReq.array[i];
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].e_rab_id = item_p->e_RAB_ID;
// check for the NAS PDU
if (item_p->nAS_PDU.size > 0 ) {
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].nas_pdu.length = item_p->nAS_PDU.size;
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].nas_pdu.buffer = malloc(sizeof(uint8_t) * item_p->nAS_PDU.size);
memcpy(S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].nas_pdu.buffer,
item_p->nAS_PDU.buf, item_p->nAS_PDU.size);
} else {
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].nas_pdu.length = 0;
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].nas_pdu.buffer = NULL;
S1AP_WARN("NAS PDU is not provided, generate a E_RAB_SETUP Failure (TBD) back to MME \n");
return -1;
}
/* Set the transport layer address */
memcpy(S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].sgw_addr.buffer,
item_p->transportLayerAddress.buf, item_p->transportLayerAddress.size);
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].sgw_addr.length =
item_p->transportLayerAddress.size * 8 - item_p->transportLayerAddress.bits_unused;
/* GTP tunnel endpoint ID */
OCTET_STRING_TO_INT32(&item_p->gTP_TEID, S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].gtp_teid);
/* Set the QOS informations */
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].qos.qci = item_p->e_RABlevelQoSParameters.qCI;
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].qos.allocation_retention_priority.priority_level =
item_p->e_RABlevelQoSParameters.allocationRetentionPriority.priorityLevel;
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].qos.allocation_retention_priority.pre_emp_capability =
item_p->e_RABlevelQoSParameters.allocationRetentionPriority.pre_emptionCapability;
S1AP_E_RAB_SETUP_REQ(message_p).e_rab_setup_params[i].qos.allocation_retention_priority.pre_emp_vulnerability =
item_p->e_RABlevelQoSParameters.allocationRetentionPriority.pre_emptionVulnerability;
}
itti_send_msg_to_task(TASK_RRC_ENB, ue_desc_p->eNB_instance->instance, message_p);
return 0;
}
openair3/S1AP/s1ap_eNB_nas_procedures.c
+91
View File
@@ -686,3 +686,94 @@ int s1ap_eNB_ue_capabilities(instance_t instance,
return ret;
}
//------------------------------------------------------------------------------
int s1ap_eNB_e_rab_setup_resp(instance_t instance,
s1ap_e_rab_setup_resp_t *e_rab_setup_resp_p)
//------------------------------------------------------------------------------
{
s1ap_eNB_instance_t *s1ap_eNB_instance_p = NULL;
struct s1ap_eNB_ue_context_s *ue_context_p = NULL;
S1ap_E_RABSetupResponseIEs_t *initial_ies_p = NULL;
s1ap_message message;
uint8_t *buffer = NULL;
uint32_t length;
int ret = -1;
int i;
/* Retrieve the S1AP eNB instance associated with Mod_id */
s1ap_eNB_instance_p = s1ap_eNB_get_instance(instance);
DevAssert(e_rab_setup_resp_p != NULL);
DevAssert(s1ap_eNB_instance_p != NULL);
if ((ue_context_p = s1ap_eNB_get_ue_context(s1ap_eNB_instance_p,
e_rab_setup_resp_p->eNB_ue_s1ap_id)) == NULL) {
/* The context for this eNB ue s1ap id doesn't exist in the map of eNB UEs */
S1AP_WARN("Failed to find ue context associated with eNB ue s1ap id: 0x%06x\n",
e_rab_setup_resp_p->eNB_ue_s1ap_id);
return -1;
}
/* Uplink NAS transport can occur either during an s1ap connected state
* or during initial attach (for example: NAS authentication).
*/
if (!(ue_context_p->ue_state == S1AP_UE_CONNECTED ||
ue_context_p->ue_state == S1AP_UE_WAITING_CSR)) {
S1AP_WARN("You are attempting to send NAS data over non-connected "
"eNB ue s1ap id: %06x, current state: %d\n",
e_rab_setup_resp_p->eNB_ue_s1ap_id, ue_context_p->ue_state);
return -1;
}
/* Prepare the S1AP message to encode */
memset(&message, 0, sizeof(s1ap_message));
message.direction = S1AP_PDU_PR_successfulOutcome;
message.procedureCode = S1ap_ProcedureCode_id_E_RABSetup;
initial_ies_p = &message.msg.s1ap_E_RABSetupResponseIEs;
initial_ies_p->eNB_UE_S1AP_ID = e_rab_setup_resp_p->eNB_ue_s1ap_id;
initial_ies_p->mme_ue_s1ap_id = ue_context_p->mme_ue_s1ap_id;
for (i = 0; i < e_rab_setup_resp_p->nb_of_e_rabs; i++) {
S1ap_E_RABSetupItemBearerSURes_t *new_item;
new_item = calloc(1, sizeof(S1ap_E_RABSetupItemBearerSURes_t));
new_item->e_RAB_ID = e_rab_setup_resp_p->e_rabs[i].e_rab_id;
GTP_TEID_TO_ASN1(e_rab_setup_resp_p->e_rabs[i].gtp_teid, &new_item->gTP_TEID);
new_item->transportLayerAddress.buf = e_rab_setup_resp_p->e_rabs[i].eNB_addr.buffer;
new_item->transportLayerAddress.size = e_rab_setup_resp_p->e_rabs[i].eNB_addr.length;
new_item->transportLayerAddress.bits_unused = 0;
ASN_SEQUENCE_ADD(&initial_ies_p->e_RABSetupListBearerSURes.s1ap_E_RABSetupItemBearerSURes,
new_item);
}
if (s1ap_eNB_encode_pdu(&message, &buffer, &length) < 0) {
S1AP_ERROR("Failed to encode uplink NAS transport\n");
/* Encode procedure has failed... */
return -1;
}
MSC_LOG_TX_MESSAGE(
MSC_S1AP_ENB,
MSC_S1AP_MME,
(const char *)buffer,
length,
MSC_AS_TIME_FMT" E_RAN Setup successfulOutcome eNB_ue_s1ap_id %u mme_ue_s1ap_id %u",
0,0,//MSC_AS_TIME_ARGS(ctxt_pP),
initial_ies_p->eNB_UE_S1AP_ID,
initial_ies_p->mme_ue_s1ap_id);
/* UE associated signalling -> use the allocated stream */
s1ap_eNB_itti_send_sctp_data_req(s1ap_eNB_instance_p->instance,
ue_context_p->mme_ref->assoc_id, buffer,
length, ue_context_p->tx_stream);
return ret;
}