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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 NR_IF_Module.c
* \brief functions for NR UE FAPI-like interface
* \author R. Knopp, K.H. HSU
* \date 2018
* \version 0.1
* \company Eurecom / NTUST
* \email: knopp@eurecom.fr, kai-hsiang.hsu@eurecom.fr
* \note
* \warning
*/
#include "NR_IF_Module.h"
#include "mac_proto.h"
#include "assertions.h"
#include <stdio.h>
#define MAX_IF_MODULES 100
static nr_ue_if_module_t *nr_ue_if_module_inst[MAX_IF_MODULES];
// L2 Abstraction Layer
int8_t handle_bcch_bch(module_id_t module_id, int cc_id, uint8_t gNB_index, uint8_t *pduP, uint8_t additional_bits, uint32_t ssb_index, uint32_t ssb_length, uint16_t cell_id){
return nr_ue_decode_mib( module_id,
cc_id,
gNB_index,
additional_bits,
ssb_length, // Lssb = 64 is not support
ssb_index,
pduP,
cell_id);
}
// L2 Abstraction Layer
int8_t handle_bcch_dlsch(module_id_t module_id, int cc_id, uint8_t gNB_index, uint32_t sibs_mask, uint8_t *pduP, uint32_t pdu_len){
return 0;
}
// L2 Abstraction Layer
int8_t handle_dci(module_id_t module_id, int cc_id, uint8_t gNB_index, fapi_nr_dci_pdu_rel15_t *dci, uint16_t rnti, uint32_t dci_type){
return nr_ue_decode_dci(module_id, cc_id, gNB_index, dci, rnti, dci_type);
}
int8_t nr_ue_ul_indication(nr_uplink_indication_t *ul_info){
NR_UE_L2_STATE_t ret;
module_id_t module_id = ul_info->module_id;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
ret = nr_ue_scheduler(
ul_info->module_id,
ul_info->gNB_index,
ul_info->cc_id,
ul_info->frame,
ul_info->slot,
ul_info->ssb_index,
0, 0); // TODO check tx/rx frame/slot is need for NR version
switch(ret){
case CONNECTION_OK:
break;
case CONNECTION_LOST:
break;
case PHY_RESYNCH:
break;
case PHY_HO_PRACH:
break;
default:
break;
}
mac->if_module->scheduled_response(&mac->scheduled_response);
return 0;
}
int8_t nr_ue_dl_indication(nr_downlink_indication_t *dl_info){
int32_t i;
uint32_t ret_mask = 0x0;
module_id_t module_id = dl_info->module_id;
NR_UE_MAC_INST_t *mac = get_mac_inst(module_id);
// clean up scheduled_response structure
if(dl_info->rx_ind != NULL){
printf("[L2][IF MODULE][DL INDICATION][RX_IND]\n");
for(i=0; i<dl_info->rx_ind->number_pdus; ++i){
switch(dl_info->rx_ind->rx_request_body[i].pdu_type){
case FAPI_NR_RX_PDU_TYPE_MIB:
ret_mask |= (handle_bcch_bch(dl_info->module_id, dl_info->cc_id, dl_info->gNB_index,
(dl_info->rx_ind->rx_request_body+i)->mib_pdu.pdu,
(dl_info->rx_ind->rx_request_body+i)->mib_pdu.additional_bits,
(dl_info->rx_ind->rx_request_body+i)->mib_pdu.ssb_index,
(dl_info->rx_ind->rx_request_body+i)->mib_pdu.ssb_length,
(dl_info->rx_ind->rx_request_body+i)->mib_pdu.cell_id )) << FAPI_NR_RX_PDU_TYPE_MIB;
break;
case FAPI_NR_RX_PDU_TYPE_SIB:
ret_mask |= (handle_bcch_dlsch(dl_info->module_id, dl_info->cc_id, dl_info->gNB_index,
(dl_info->rx_ind->rx_request_body+i)->sib_pdu.sibs_mask,
(dl_info->rx_ind->rx_request_body+i)->sib_pdu.pdu,
(dl_info->rx_ind->rx_request_body+i)->sib_pdu.pdu_length )) << FAPI_NR_RX_PDU_TYPE_SIB;
break;
case FAPI_NR_RX_PDU_TYPE_DLSCH:
ret_mask |= (0) << FAPI_NR_RX_PDU_TYPE_DLSCH;
break;
default:
break;
}
}
}
fapi_nr_dl_config_request_t *dl_config = &mac->dl_config_request;
if(dl_info->dci_ind != NULL){
printf("[L2][IF MODULE][DL INDICATION][DCI_IND]\n");
for(i=0; dl_info->dci_ind->number_of_dcis; ++i){
fapi_nr_dci_pdu_rel15_t *dci = &(dl_info->dci_ind->dci_list+i)->dci;
switch((dl_info->dci_ind->dci_list+i)->dci_type){
case FAPI_NR_DCI_TYPE_0_0:
case FAPI_NR_DCI_TYPE_0_1:
case FAPI_NR_DCI_TYPE_1_1:
case FAPI_NR_DCI_TYPE_2_0:
case FAPI_NR_DCI_TYPE_2_1:
case FAPI_NR_DCI_TYPE_2_2:
case FAPI_NR_DCI_TYPE_2_3:
AssertFatal(1==0, "Not yet support at this moment!\n");
break;
case FAPI_NR_DCI_TYPE_1_0:
dl_config->dl_config_request_body[dl_config->number_pdus].pdu_type = FAPI_NR_DL_CONFIG_TYPE_DLSCH;
// mapping into DL_CONFIG_REQ for DL-SCH
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu = &dl_config->dl_config_request_body[dl_config->number_pdus].dlsch_pdu.dlsch_config_rel15
dlsch_config_pdu->format_indicator = dci->dci_format;
dlsch_config_pdu->frequency_domain_assignment = dci->frequency_domain_resouce_assignment;
dlsch_config_pdu->time_domain_assignment = dci->time_domain_resource_assignment;
dlsch_config_pdu->vrb_to_prb_mapping = dci->vrb_to_prb_mapping;
dlsch_config_pdu->mcs = dci->mcs;
dlsch_config_pdu->ndi = dci->new_data_indication;
dlsch_config_pdu->rv = dci->redundancy_version;
dlsch_config_pdu->harq_pid = dci->harq_process;
dlsch_config_pdu->dai = dci->downlink_assignment_index;
dlsch_config_pdu->tpc = dci->tpc_command;
dlsch_config_pdu->pucch_resource_indicator = dci->pucch_resource_indicator;
dlsch_config_pdu->pdsch_to_harq_feedback_timing_indicator = dci->pdsch_to_harq_feedback_timing_indicator;
dl_config->dl_config_request_body[dl_config->number_pdus].dlsch_pdu.dlsch_config_rel15.rnti = 0x0000; // TX RNTI: UE-spec
dl_config->number_pdus = dl_config->number_pdus + 1;
ret_mask |= (handle_dci(
dl_info->module_id,
dl_info->cc_id,
dl_info->gNB_index,
dci,
(dl_info->dci_ind->dci_list+i)->rnti,
(dl_info->dci_ind->dci_list+i)->dci_type)) << FAPI_NR_DCI_IND;
break;
default:
break;
}
//(dl_info->dci_list+i)->rnti
}
}
AssertFatal( nr_ue_if_module_inst[module_id] != NULL, "IF module is void!\n" );
nr_ue_if_module_inst[module_id]->scheduled_response(&mac->scheduled_response);
return 0;
}
nr_ue_if_module_t *nr_ue_if_module_init(uint32_t module_id){
if (nr_ue_if_module_inst[module_id] == NULL) {
nr_ue_if_module_inst[module_id] = (nr_ue_if_module_t *)malloc(sizeof(nr_ue_if_module_t));
memset((void*)nr_ue_if_module_inst[module_id],0,sizeof(nr_ue_if_module_t));
nr_ue_if_module_inst[module_id]->cc_mask=0;
nr_ue_if_module_inst[module_id]->current_frame = 0;
nr_ue_if_module_inst[module_id]->current_slot = 0;
nr_ue_if_module_inst[module_id]->phy_config_request = NULL;
nr_ue_if_module_inst[module_id]->scheduled_response = NULL;
nr_ue_if_module_inst[module_id]->dl_indication = nr_ue_dl_indication;
nr_ue_if_module_inst[module_id]->ul_indication = nr_ue_ul_indication;
}
return nr_ue_if_module_inst[module_id];
}
int8_t nr_ue_if_module_kill(uint32_t module_id) {
if (nr_ue_if_module_inst[module_id] != NULL){
free(nr_ue_if_module_inst[module_id]);
}
return 0;
}