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746d07464657edd4397c9e075dffa659db025493
openairinterface5g/openair1/SCHED_NR_UE/fapi_nr_ue_l1.c
T
Melissa Elkadi 746d074646 Queuing all nFAPI messages and handling after slot ind 
This commit changes the stub functionality entirely.
We are now queueing any received NR nFAPI message
and handling it only after we recevie a slot ind
that corresponds with the nFAPI message's sfn/slot
value. When doing this, an existing issue has been
brought to light. The gNB and NR UE are not in sync
when it comes to their slot indications. Generally,
the NR UE seems to be ahead of the gNB by around 6-7
slots. This commit has a hack... when we receive a
slot indication at the moment, we decrament it by 6
to try to keep the NRUE from being ahead of the gNB.
This will be fixed shortly... This was a temporary
fix..
2021-10-06 18:13:13 -07:00

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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"
#include "utils.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"};
queue_t nr_rx_ind_queue;
queue_t nr_crc_ind_queue;
queue_t nr_uci_ind_queue;
int8_t nr_ue_scheduled_response_stub(nr_scheduled_response_t *scheduled_response) {
if(scheduled_response != NULL)
{
if (scheduled_response->ul_config != NULL)
{
fapi_nr_ul_config_request_t *ul_config = scheduled_response->ul_config;
AssertFatal(ul_config->number_pdus < sizeof(ul_config->ul_config_list) / sizeof(ul_config->ul_config_list[0]),
"Too many ul_config pdus %d", ul_config->number_pdus);
for (int i = 0; i < ul_config->number_pdus; ++i)
{
LOG_I(PHY, "In %s: processing type %d PDU of %d total UL PDUs (ul_config %p) \n",
__FUNCTION__, ul_config->ul_config_list[i].pdu_type, ul_config->number_pdus, ul_config);
uint8_t pdu_type = ul_config->ul_config_list[i].pdu_type;
switch (pdu_type)
{
case (FAPI_NR_UL_CONFIG_TYPE_PUSCH):
{
nfapi_nr_rx_data_indication_t *rx_ind = CALLOC(1, sizeof(*rx_ind));
nfapi_nr_crc_indication_t *crc_ind = CALLOC(1, sizeof(*crc_ind));
nfapi_nr_ue_pusch_pdu_t *pusch_config_pdu = &ul_config->ul_config_list[i].pusch_config_pdu;
if (scheduled_response->tx_request)
{
AssertFatal(scheduled_response->tx_request->number_of_pdus <
sizeof(scheduled_response->tx_request->tx_request_body) / sizeof(scheduled_response->tx_request->tx_request_body[0]),
"Too many tx_req pdus %d", scheduled_response->tx_request->number_of_pdus);
rx_ind->header.message_id = NFAPI_NR_PHY_MSG_TYPE_RX_DATA_INDICATION;
rx_ind->sfn = scheduled_response->ul_config->sfn;
rx_ind->slot = scheduled_response->ul_config->slot;
rx_ind->number_of_pdus = scheduled_response->tx_request->number_of_pdus;
rx_ind->pdu_list = CALLOC(1, sizeof(*rx_ind->pdu_list));
for (int j = 0; j < rx_ind->number_of_pdus; j++)
{
fapi_nr_tx_request_body_t *tx_req_body = &scheduled_response->tx_request->tx_request_body[j];
rx_ind->pdu_list[j].handle = pusch_config_pdu->handle;
rx_ind->pdu_list[j].harq_id = pusch_config_pdu->pusch_data.harq_process_id;
rx_ind->pdu_list[j].pdu_length = tx_req_body->pdu_length;
rx_ind->pdu_list[j].pdu = CALLOC(tx_req_body->pdu_length, sizeof(*rx_ind->pdu_list[j].pdu));
memcpy(rx_ind->pdu_list[j].pdu, tx_req_body->pdu, tx_req_body->pdu_length * sizeof(*rx_ind->pdu_list[j].pdu));
rx_ind->pdu_list[j].rnti = pusch_config_pdu->rnti;
rx_ind->pdu_list[j].timing_advance = scheduled_response->tx_request->tx_config.timing_advance;
rx_ind->pdu_list[j].ul_cqi = 255; // scheduled_response->tx_request->tx_config.ul_cqi;
char buffer[1024];
hexdump(rx_ind->pdu_list[j].pdu, rx_ind->pdu_list[j].pdu_length, buffer, sizeof(buffer));
LOG_D(MAC, "Melissa Elkadi, this is hexdump of pdu %s before queuing rx_ind\n",
buffer);
}
crc_ind->header.message_id = NFAPI_NR_PHY_MSG_TYPE_CRC_INDICATION;
crc_ind->number_crcs = scheduled_response->ul_config->number_pdus;
crc_ind->sfn = scheduled_response->ul_config->sfn;
crc_ind->slot = scheduled_response->ul_config->slot;
crc_ind->crc_list = CALLOC(1, sizeof(*crc_ind->crc_list));
for (int j = 0; j < crc_ind->number_crcs; j++)
{
crc_ind->crc_list[j].handle = pusch_config_pdu->handle;
crc_ind->crc_list[j].harq_id = pusch_config_pdu->pusch_data.harq_process_id;
LOG_I(NR_MAC, "This is the harq pid %d for crc_list[%d]\n", crc_ind->crc_list[j].harq_id, j);
LOG_I(NR_MAC, "This is sched sfn/sl [%d %d] and crc sfn/sl [%d %d]\n",
scheduled_response->frame, scheduled_response->slot, crc_ind->sfn, crc_ind->slot);
crc_ind->crc_list[j].num_cb = pusch_config_pdu->pusch_data.num_cb;
crc_ind->crc_list[j].rnti = pusch_config_pdu->rnti;
crc_ind->crc_list[j].tb_crc_status = 0;
crc_ind->crc_list[j].timing_advance = scheduled_response->tx_request->tx_config.timing_advance;
crc_ind->crc_list[j].ul_cqi = scheduled_response->tx_request->tx_config.ul_cqi;
}
if (!put_queue(&nr_rx_ind_queue, rx_ind))
{
LOG_E(NR_MAC, "Put_queue failed for rx_ind\n");
for (int i = 0; i < rx_ind->number_of_pdus; i++)
{
free(rx_ind->pdu_list[i].pdu);
rx_ind->pdu_list[i].pdu = NULL;
}
free(rx_ind->pdu_list);
rx_ind->pdu_list = NULL;
free(rx_ind);
rx_ind = NULL;
}
if (!put_queue(&nr_crc_ind_queue, crc_ind))
{
LOG_E(NR_MAC, "Put_queue failed for crc_ind\n");
free(crc_ind->crc_list);
crc_ind->crc_list = NULL;
free(crc_ind);
crc_ind = NULL;
}
LOG_I(PHY, "In %s: Filled queue rx/crc_ind which was filled by ulconfig. \n", __FUNCTION__);
scheduled_response->tx_request->number_of_pdus = 0;
}
break;
}
default:
LOG_I(NR_MAC, "Unknown ul_config->pdu_type %d\n", pdu_type);
break;
}
}
scheduled_response->ul_config->number_pdus = 0;
}
if (scheduled_response->dl_config != NULL)
{
fapi_nr_dl_config_request_t *dl_config = scheduled_response->dl_config;
AssertFatal(dl_config->number_pdus < sizeof(dl_config->dl_config_list) / sizeof(dl_config->dl_config_list[0]),
"Too many dl_config pdus %d", dl_config->number_pdus);
for (int i = 0; i < dl_config->number_pdus; ++i)
{
LOG_I(PHY, "In %s: processing %s PDU of %d total DL PDUs (dl_config %p) \n",
__FUNCTION__, dl_pdu_type[dl_config->dl_config_list[i].pdu_type - 1], dl_config->number_pdus, dl_config);
uint8_t pdu_type = dl_config->dl_config_list[i].pdu_type;
switch (pdu_type)
{
case (FAPI_NR_DL_CONFIG_TYPE_DLSCH):
{
nfapi_nr_uci_indication_t *uci_ind = CALLOC(1, sizeof(*uci_ind));
uci_ind->header.message_id = NFAPI_NR_PHY_MSG_TYPE_UCI_INDICATION;
uci_ind->sfn = scheduled_response->frame;
uci_ind->slot = scheduled_response->slot;
uci_ind->num_ucis = 1;
uci_ind->uci_list = CALLOC(uci_ind->num_ucis, sizeof(*uci_ind->uci_list));
for (int j = 0; j < uci_ind->num_ucis; j++)
{
nfapi_nr_uci_pucch_pdu_format_0_1_t *pdu_0_1 = &uci_ind->uci_list[j].pucch_pdu_format_0_1;
uci_ind->uci_list[j].pdu_type = NFAPI_NR_UCI_FORMAT_0_1_PDU_TYPE;
uci_ind->uci_list[j].pdu_size = sizeof(nfapi_nr_uci_pucch_pdu_format_0_1_t);
memset(pdu_0_1, 0, sizeof(*pdu_0_1));
pdu_0_1->handle = 0;
pdu_0_1->rnti = dl_config->dl_config_list[i].dlsch_config_pdu.rnti;
pdu_0_1->pucch_format = 1;
pdu_0_1->ul_cqi = 255;
pdu_0_1->timing_advance = 0;
pdu_0_1->rssi = 0;
}
LOG_I(NR_PHY, "In %s: Filled queue uci_ind which was filled by dlconfig.\n"
"uci_num %d, SFN/SLOT: [%d, %d]\n",
__FUNCTION__, uci_ind->num_ucis, uci_ind->sfn, uci_ind->slot);
if (!put_queue(&nr_uci_ind_queue, uci_ind))
{
LOG_E(NR_MAC, "Put_queue failed for uci_ind\n");
free(uci_ind->uci_list);
free(uci_ind);
}
break;
}
}
}
}
}
return 0;
}
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,"current_harq_pid = %d\n", 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 may be due to false retransmission. Reset the
// following flag to skip PDSCH procedures in that case.
dlsch0->active = 0;
}
/* 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;
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];
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){
fapi_nr_tx_request_body_t *tx_req_body = &scheduled_response->tx_request->tx_request_body[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;
scheduled_response->tx_request->number_of_pdus = 0;
}
} 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;
}
}
memset(ul_config, 0, sizeof(fapi_nr_ul_config_request_t));
}
}
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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