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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/*! \file f1ap_du_interface_management.h
* \brief f1ap interface management for DU
* \author EURECOM/NTUST
* \date 2018
* \version 0.1
* \company Eurecom
* \email: navid.nikaein@eurecom.fr, bing-kai.hong@eurecom.fr
* \note
* \warning
*/
#include "f1ap_common.h"
#include "f1ap_du_paging.h"
#include "conversions.h"
#include "oai_asn1.h"
#include "openair2/RRC/LTE/rrc_proto.h"
int DU_handle_Paging(instance_t instance,
uint32_t assoc_id,
uint32_t stream,
F1AP_F1AP_PDU_t *pdu) {
F1AP_Paging_t *paging;
F1AP_PagingIEs_t *ie;
long tmsi;
uint8_t pagingdrx;
uint8_t *fiveg_tmsi_buf = NULL;
DevAssert(pdu);
if ( LOG_DEBUGFLAG(DEBUG_ASN1) ) {
xer_fprint(stdout, &asn_DEF_F1AP_F1AP_PDU, pdu);
}
paging = &pdu->choice.initiatingMessage->value.choice.Paging;
// get UEIdentityIndexValue
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_PagingIEs_t, ie, paging,
F1AP_ProtocolIE_ID_id_UEIdentityIndexValue, true);
LOG_D(F1AP, "indexLength10 %d\n", BIT_STRING_to_uint32(&ie->value.choice.UEIdentityIndexValue.choice.indexLength10));
// get PagingIdentity
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_PagingIEs_t, ie, paging,
F1AP_ProtocolIE_ID_id_PagingIdentity, true);
if(ie != NULL){
fiveg_tmsi_buf = ie->value.choice.PagingIdentity.choice.cNUEPagingIdentity->choice.fiveG_S_TMSI.buf;
tmsi = ((long)fiveg_tmsi_buf[0] << 40) +
((long)fiveg_tmsi_buf[1] << 32) +
(fiveg_tmsi_buf[2] << 24) +
(fiveg_tmsi_buf[3] << 16) +
(fiveg_tmsi_buf[4] << 8) +
fiveg_tmsi_buf[5];
LOG_D(F1AP, "tmsi %ld\n", tmsi);
}
// get PagingDRX
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_PagingIEs_t, ie, paging,
F1AP_ProtocolIE_ID_id_PagingDRX, true);
if(ie != NULL) {
pagingdrx = (uint8_t)ie->value.choice.PagingDRX;
}
LOG_D(F1AP, "pagingdrx %u\n", pagingdrx);
// get PagingCell_List
F1AP_FIND_PROTOCOLIE_BY_ID(F1AP_PagingIEs_t, ie, paging,
F1AP_ProtocolIE_ID_id_PagingCell_List, true);
for (uint8_t CC_id = 0; CC_id < MAX_NUM_CCs; CC_id++) {
rrc_gNB_generate_pcch_msg((uint32_t)tmsi, pagingdrx, instance, CC_id);
}
return 0;
}