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openairinterface5g/openair1/SCHED_NR_UE/fapi_nr_ue_l1.c
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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 fapi_nr_ue_l1.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 <stdio.h>
#include "fapi_nr_ue_interface.h"
#include "fapi_nr_ue_l1.h"
#include "harq_nr.h"
//#include "PHY/phy_vars_nr_ue.h"
#include "PHY/defs_nr_UE.h"
#include "PHY/impl_defs_nr.h"
extern PHY_VARS_NR_UE ***PHY_vars_UE_g;
const char *dl_pdu_type[]={"DCI", "DLSCH", "RA_DLSCH", "SI_DLSCH", "P_DLSCH"};
const char *ul_pdu_type[]={"PRACH", "PUCCH", "PUSCH", "SRS"};
int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
bool found = false;
if(scheduled_response != NULL){
module_id_t module_id = scheduled_response->module_id;
uint8_t cc_id = scheduled_response->CC_id, thread_id;
uint32_t i;
int slot = scheduled_response->slot;
// Note: we have to handle the thread IDs for this. To be revisited completely.
thread_id = scheduled_response->thread_id;
NR_UE_DLSCH_t *dlsch0 = NULL;
NR_UE_PDCCH *pdcch_vars = PHY_vars_UE_g[module_id][cc_id]->pdcch_vars[thread_id][0];
NR_UE_ULSCH_t *ulsch0 = PHY_vars_UE_g[module_id][cc_id]->ulsch[thread_id][0][0];
NR_UE_PUCCH *pucch_vars = PHY_vars_UE_g[module_id][cc_id]->pucch_vars[thread_id][0];
if(scheduled_response->dl_config != NULL){
fapi_nr_dl_config_request_t *dl_config = scheduled_response->dl_config;
pdcch_vars->nb_search_space = 0;
for (i = 0; i < dl_config->number_pdus; ++i){
AssertFatal(dl_config->number_pdus < FAPI_NR_DL_CONFIG_LIST_NUM,"dl_config->number_pdus %d out of bounds\n",dl_config->number_pdus);
AssertFatal(dl_config->dl_config_list[i].pdu_type<=FAPI_NR_DL_CONFIG_TYPES,"pdu_type %d > 2\n",dl_config->dl_config_list[i].pdu_type);
LOG_D(PHY, "In %s: frame %d slot %d received 1 DL %s PDU of %d total DL PDUs:\n",
__FUNCTION__, scheduled_response->frame, slot, dl_pdu_type[dl_config->dl_config_list[i].pdu_type - 1], dl_config->number_pdus);
if (dl_config->dl_config_list[i].pdu_type == FAPI_NR_DL_CONFIG_TYPE_DCI) {
fapi_nr_dl_config_dci_dl_pdu_rel15_t *pdcch_config = &dl_config->dl_config_list[i].dci_config_pdu.dci_config_rel15;
memcpy((void*)&pdcch_vars->pdcch_config[pdcch_vars->nb_search_space],(void*)pdcch_config,sizeof(*pdcch_config));
pdcch_vars->nb_search_space = pdcch_vars->nb_search_space + 1;
pdcch_vars->sfn = scheduled_response->frame;
pdcch_vars->slot = slot;
LOG_D(PHY,"Number of DCI SearchSpaces %d\n",pdcch_vars->nb_search_space);
} else {
fapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_config_pdu = &dl_config->dl_config_list[i].dlsch_config_pdu.dlsch_config_rel15;
uint8_t current_harq_pid = dlsch_config_pdu->harq_process_nbr;
if (dl_config->dl_config_list[i].pdu_type == FAPI_NR_DL_CONFIG_TYPE_DLSCH){
dlsch0 = PHY_vars_UE_g[module_id][cc_id]->dlsch[thread_id][0][0];
}
else if (dl_config->dl_config_list[i].pdu_type == FAPI_NR_DL_CONFIG_TYPE_RA_DLSCH){
dlsch0 = PHY_vars_UE_g[module_id][cc_id]->dlsch_ra[0];
dlsch0->rnti_type = _RA_RNTI_;
dlsch0->harq_processes[current_harq_pid]->status = ACTIVE;
}
else if (dl_config->dl_config_list[i].pdu_type == FAPI_NR_DL_CONFIG_TYPE_SI_DLSCH){
dlsch0 = PHY_vars_UE_g[module_id][cc_id]->dlsch_SI[0];
dlsch0->rnti_type = _SI_RNTI_;
dlsch0->harq_processes[current_harq_pid]->status = ACTIVE;
}
dlsch0->current_harq_pid = current_harq_pid;
dlsch0->active = 1;
dlsch0->rnti = dl_config->dl_config_list[i].dlsch_config_pdu.rnti;
LOG_D(PHY,"slot %d current_harq_pid = %d\n",slot, current_harq_pid);
NR_DL_UE_HARQ_t *dlsch0_harq = dlsch0->harq_processes[current_harq_pid];
if (dlsch0_harq){
dlsch0_harq->BWPStart = dlsch_config_pdu->BWPStart;
dlsch0_harq->BWPSize = dlsch_config_pdu->BWPSize;
dlsch0_harq->nb_rb = dlsch_config_pdu->number_rbs;
dlsch0_harq->start_rb = dlsch_config_pdu->start_rb;
dlsch0_harq->nb_symbols = dlsch_config_pdu->number_symbols;
dlsch0_harq->start_symbol = dlsch_config_pdu->start_symbol;
dlsch0_harq->dlDmrsSymbPos = dlsch_config_pdu->dlDmrsSymbPos;
dlsch0_harq->dmrsConfigType = dlsch_config_pdu->dmrsConfigType;
dlsch0_harq->n_dmrs_cdm_groups = dlsch_config_pdu->n_dmrs_cdm_groups;
dlsch0_harq->mcs = dlsch_config_pdu->mcs;
dlsch0_harq->rvidx = dlsch_config_pdu->rv;
dlsch0->g_pucch = dlsch_config_pdu->accumulated_delta_PUCCH;
//get nrOfLayers from DCI info
uint8_t Nl = 0;
for (i = 0; i < 4; i++) {
if (dlsch_config_pdu->dmrs_ports[i] >= i) Nl += 1;
}
dlsch0_harq->Nl = Nl;
dlsch0_harq->mcs_table=dlsch_config_pdu->mcs_table;
downlink_harq_process(dlsch0_harq, dlsch0->current_harq_pid, dlsch_config_pdu->ndi, dlsch_config_pdu->rv, dlsch0->rnti_type);
if (dlsch0_harq->status != ACTIVE) {
// dlsch0_harq->status not ACTIVE due to false retransmission
// Reset the following flag to skip PDSCH procedures in that case and retrasmit harq status
dlsch0->active = 0;
update_harq_status(module_id,dlsch0->current_harq_pid,dlsch0_harq->ack);
}
/* PTRS */
dlsch0_harq->PTRSFreqDensity = dlsch_config_pdu->PTRSFreqDensity;
dlsch0_harq->PTRSTimeDensity = dlsch_config_pdu->PTRSTimeDensity;
dlsch0_harq->PTRSPortIndex = dlsch_config_pdu->PTRSPortIndex;
dlsch0_harq->nEpreRatioOfPDSCHToPTRS = dlsch_config_pdu->nEpreRatioOfPDSCHToPTRS;
dlsch0_harq->PTRSReOffset = dlsch_config_pdu->PTRSReOffset;
dlsch0_harq->pduBitmap = dlsch_config_pdu->pduBitmap;
LOG_D(MAC, ">>>> \tdlsch0->g_pucch = %d\tdlsch0_harq.mcs = %d\n", dlsch0->g_pucch, dlsch0_harq->mcs);
}
}
}
dl_config->number_pdus = 0;
}
if (scheduled_response->ul_config != NULL){
fapi_nr_ul_config_request_t *ul_config = scheduled_response->ul_config;
pthread_mutex_lock(&ul_config->mutex_ul_config);
for (i = 0; i < ul_config->number_pdus; ++i){
AssertFatal(ul_config->ul_config_list[i].pdu_type <= FAPI_NR_UL_CONFIG_TYPES,"pdu_type %d out of bounds\n",ul_config->ul_config_list[i].pdu_type);
LOG_D(PHY, "In %s: processing %s PDU of %d total UL PDUs (ul_config %p) \n", __FUNCTION__, ul_pdu_type[ul_config->ul_config_list[i].pdu_type - 1], ul_config->number_pdus, ul_config);
uint8_t pdu_type = ul_config->ul_config_list[i].pdu_type, current_harq_pid, gNB_id = 0;
/* PRACH */
//NR_PRACH_RESOURCES_t *prach_resources;
fapi_nr_ul_config_prach_pdu *prach_config_pdu;
/* PUSCH */
nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu;
/* PUCCH */
fapi_nr_ul_config_pucch_pdu *pucch_config_pdu;
switch (pdu_type){
case (FAPI_NR_UL_CONFIG_TYPE_PUSCH):
// pusch config pdu
pusch_config_pdu = &ul_config->ul_config_list[i].pusch_config_pdu;
current_harq_pid = pusch_config_pdu->pusch_data.harq_process_id;
NR_UL_UE_HARQ_t *harq_process_ul_ue = ulsch0->harq_processes[current_harq_pid];
harq_process_ul_ue->status = 0;
if (harq_process_ul_ue){
nfapi_nr_ue_pusch_pdu_t *pusch_pdu = &harq_process_ul_ue->pusch_pdu;
memcpy(pusch_pdu, pusch_config_pdu, sizeof(nfapi_nr_ue_pusch_pdu_t));
ulsch0->f_pusch = pusch_config_pdu->absolute_delta_PUSCH;
if (scheduled_response->tx_request) {
for (int j=0; j<scheduled_response->tx_request->number_of_pdus; j++) {
fapi_nr_tx_request_body_t *tx_req_body = &scheduled_response->tx_request->tx_request_body[j];
if (tx_req_body->pdu_index == i) {
LOG_D(PHY,"%d.%d Copying %d bytes to harq_process_ul_ue->a (harq_pid %d)\n",scheduled_response->frame,slot,tx_req_body->pdu_length,current_harq_pid);
memcpy(harq_process_ul_ue->a, tx_req_body->pdu, tx_req_body->pdu_length);
harq_process_ul_ue->status = ACTIVE;
break;
}
}
}
} else {
LOG_E(PHY, "[phy_procedures_nrUE_TX] harq_process_ul_ue is NULL !!\n");
return -1;
}
break;
case (FAPI_NR_UL_CONFIG_TYPE_PUCCH):
found = false;
pucch_config_pdu = &ul_config->ul_config_list[i].pucch_config_pdu;
for(int j=0; j<2; j++) {
if(pucch_vars->active[j] == false) {
LOG_D(PHY,"%d.%d Copying pucch pdu to UE PHY\n",scheduled_response->frame,slot);
memcpy((void*)&(pucch_vars->pucch_pdu[j]), (void*)pucch_config_pdu, sizeof(fapi_nr_ul_config_pucch_pdu));
pucch_vars->active[j] = true;
found = true;
break;
}
}
if (!found)
LOG_E(PHY, "Couldn't find allocation for PUCCH PDU in PUCCH VARS\n");
break;
case (FAPI_NR_UL_CONFIG_TYPE_PRACH):
// prach config pdu
prach_config_pdu = &ul_config->ul_config_list[i].prach_config_pdu;
memcpy((void*)&(PHY_vars_UE_g[module_id][cc_id]->prach_vars[gNB_id]->prach_pdu), (void*)prach_config_pdu, sizeof(fapi_nr_ul_config_prach_pdu));
break;
default:
break;
}
}
if (scheduled_response->tx_request)
scheduled_response->tx_request->number_of_pdus = 0;
ul_config->sfn = 0;
ul_config->slot = 0;
ul_config->number_pdus = 0;
memset(ul_config->ul_config_list, 0, sizeof(ul_config->ul_config_list));
pthread_mutex_unlock(&ul_config->mutex_ul_config);
}
}
return 0;
}
int8_t nr_ue_phy_config_request(nr_phy_config_t *phy_config){
fapi_nr_config_request_t *nrUE_config = &PHY_vars_UE_g[phy_config->Mod_id][phy_config->CC_id]->nrUE_config;
if(phy_config != NULL) {
memcpy(nrUE_config,&phy_config->config_req,sizeof(fapi_nr_config_request_t));
if (PHY_vars_UE_g[phy_config->Mod_id][phy_config->CC_id]->UE_mode[0] == NOT_SYNCHED)
PHY_vars_UE_g[phy_config->Mod_id][phy_config->CC_id]->UE_mode[0] = PRACH;
}
return 0;
}
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