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openairinterface5g/openair1/SCHED_NR/fapi_nr_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_l1.c
* \brief functions for FAPI L1 interface
* \author R. Knopp, WEI-TAI CHEN
* \date 2017, 2018
* \version 0.1
* \company Eurecom, NTUST
* \email: knopp@eurecom.fr, kroempa@gmail.com
* \note
* \warning
*/
#include "fapi_nr_l1.h"
#include "PHY/NR_TRANSPORT/nr_dlsch.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
int oai_nfapi_nr_dl_config_req(nfapi_nr_dl_config_request_t *dl_config_req);
int oai_nfapi_tx_req(nfapi_tx_request_t *tx_req);
extern uint8_t nfapi_mode;
void handle_nr_nfapi_bch_pdu(PHY_VARS_gNB *gNB,
nfapi_nr_dl_config_request_pdu_t *dl_config_pdu,
uint8_t *sdu)
{
AssertFatal(dl_config_pdu->bch_pdu_rel15.length == 3, "BCH PDU has length %d != 3\n",
dl_config_pdu->bch_pdu_rel15.length);
LOG_D(PHY,"pbch_pdu[0]: %x,pbch_pdu[1]: %x,gNB->pbch_pdu[2]: %x\n",sdu[0],sdu[1],sdu[2]);
gNB->pbch_pdu[0] = sdu[2];
gNB->pbch_pdu[1] = sdu[1];
gNB->pbch_pdu[2] = sdu[0];
// adjust transmit amplitude here based on NFAPI info
}
/*void handle_nr_nfapi_dlsch_pdu(PHY_VARS_gNB *gNB,int frame,int subframe,gNB_L1_rxtx_proc_t *proc,
uint8_t codeword_index,
uint8_t *sdu)
{
int UE_id = 0; //Hardcode UE_id for now
int harq_pid;
NR_gNB_DLSCH_t *dlsch0=NULL, *dlsch1=NULL;
NR_DL_gNB_HARQ_t *dlsch0_harq=NULL,*dlsch1_harq=NULL;
// Based on nr_fill_dci_and_dlsch only gNB->dlsch[0][0] gets filled now. So maybe we do not need dlsch1.
dlsch0 = gNB->dlsch[UE_id][0];
dlsch1 = gNB->dlsch[UE_id][1];
harq_pid = dlsch0->harq_ids[subframe];
dlsch0_harq = dlsch0->harq_processes[harq_pid];
dlsch1_harq = dlsch1->harq_processes[harq_pid];
//if (dlsch0_harq->round==0) { //get pointer to SDU if this a new SDU
if(sdu == NULL) {
LOG_E(PHY,"NFAPI: SFN/SF:%04d%d proc:TX:[frame %d subframe %d]: programming dlsch for round 0 \n",
frame,subframe,
proc->frame_tx,proc->slot_tx);
return;
}
//AssertFatal(sdu!=NULL,"NFAPI: SFN/SF:%04d%d proc:TX:[frame %d subframe %d]: programming dlsch for round 0, rnti %x, UE_id %d, harq_pid %d : sdu is null for pdu_index %d dlsch0_harq[round:%d SFN/SF:%d%d pdu:%p mcs:%d ndi:%d pdschstart:%d]\n",
// frame,subframe,
// proc->frame_tx,proc->subframe_tx,rel8->rnti,UE_id,harq_pid,
// dl_config_pdu->dlsch_pdu.dlsch_pdu_rel8.pdu_index,dlsch0_harq->round,dlsch0_harq->frame,dlsch0_harq->subframe,dlsch0_harq->pdu,dlsch0_harq->mcs,dlsch0_harq->ndi,dlsch0_harq->pdsch_start);
if (codeword_index == 0) dlsch0_harq->pdu = sdu;
else dlsch1_harq->pdu = sdu;
LOG_I(PHY, "SFN/SF: %d/%d DLSCH PDU filled \n",frame, subframe);
// }
}*/
void handle_nfapi_nr_dci_dl_pdu(PHY_VARS_gNB *gNB,
int frame, int slot,
nfapi_nr_dl_config_dci_dl_pdu *dci_dl_pdu) {
int idx = slot&1;
NR_gNB_PDCCH *pdcch_vars = &gNB->pdcch_vars;
LOG_D(PHY,"Frame %d, Slot %d: DCI processing - populating pdcch_vars->dci_alloc[%d] proc:slot_tx:%d idx:%d pdcch_vars->num_dci:%d\n",frame,slot, pdcch_vars->num_dci, slot, idx, pdcch_vars->num_dci);
// copy dci configuration into gNB structure
nr_fill_dci(gNB,frame,slot,&pdcch_vars->dci_alloc[pdcch_vars->num_dci],dci_dl_pdu);
LOG_D(PHY,"Frame %d, Slot %d: DCI processing - populated pdcch_vars->dci_alloc[%d] proc:slot_tx:%d idx:%d pdcch_vars->num_dci:%d\n",frame,slot, pdcch_vars->num_dci, slot, idx, pdcch_vars->num_dci);
}
void handle_nr_nfapi_dlsch_pdu(PHY_VARS_gNB *gNB,int frame,int slot,
nfapi_nr_dl_config_dlsch_pdu *dlsch_pdu,
uint8_t *sdu)
{
nr_fill_dlsch(gNB,frame,slot,dlsch_pdu,sdu);
}
void nr_schedule_response(NR_Sched_Rsp_t *Sched_INFO){
PHY_VARS_gNB *gNB;
// copy data from L2 interface into L1 structures
module_id_t Mod_id = Sched_INFO->module_id;
uint8_t CC_id = Sched_INFO->CC_id;
nfapi_nr_dl_config_request_t *DL_req = Sched_INFO->DL_req;
nfapi_tx_request_t *TX_req = Sched_INFO->TX_req;
frame_t frame = Sched_INFO->frame;
sub_frame_t slot = Sched_INFO->slot;
AssertFatal(RC.gNB!=NULL,"RC.gNB is null\n");
AssertFatal(RC.gNB[Mod_id]!=NULL,"RC.gNB[%d] is null\n",Mod_id);
AssertFatal(RC.gNB[Mod_id][CC_id]!=NULL,"RC.gNB[%d][%d] is null\n",Mod_id,CC_id);
gNB = RC.gNB[Mod_id][CC_id];
uint8_t number_dl_pdu = DL_req->dl_config_request_body.number_pdu;
nfapi_nr_dl_config_request_pdu_t *dl_config_pdu;
int i;
LOG_D(PHY,"NFAPI: Sched_INFO:SFN/SF:%04d%d DL_req:SFN/SF:%04d%d:dl_pdu:%d tx_req:SFN/SF:%04d%d:pdus:%d \n",
frame,slot,
NFAPI_SFNSF2SFN(DL_req->sfn_sf),NFAPI_SFNSF2SF(DL_req->sfn_sf),number_dl_pdu,
NFAPI_SFNSF2SFN(TX_req->sfn_sf),NFAPI_SFNSF2SF(TX_req->sfn_sf),TX_req->tx_request_body.number_of_pdus);
int do_oai =0;
int dont_send =0;
gNB->pdcch_vars.num_dci = 0;
gNB->pdcch_vars.num_pdsch_rnti = 0;
gNB->pdcch_vars.num_dci=0;
for (i=0;i<number_dl_pdu;i++) {
dl_config_pdu = &DL_req->dl_config_request_body.dl_config_pdu_list[i];
LOG_D(PHY,"NFAPI: dl_pdu %d : type %d\n",i,dl_config_pdu->pdu_type);
switch (dl_config_pdu->pdu_type) {
case NFAPI_NR_DL_CONFIG_BCH_PDU_TYPE:
AssertFatal(dl_config_pdu->bch_pdu_rel15.pdu_index < TX_req->tx_request_body.number_of_pdus,
"bch_pdu_rel8.pdu_index>=TX_req->number_of_pdus (%d>%d)\n",
dl_config_pdu->bch_pdu_rel15.pdu_index,
TX_req->tx_request_body.number_of_pdus);
gNB->pbch_configured=1;
do_oai=1;
handle_nr_nfapi_bch_pdu(gNB,
dl_config_pdu,
TX_req->tx_request_body.tx_pdu_list[dl_config_pdu->bch_pdu_rel15.pdu_index].segments[0].segment_data);
break;
case NFAPI_NR_DL_CONFIG_DCI_DL_PDU_TYPE:
handle_nfapi_nr_dci_dl_pdu(gNB,
frame, slot,
&dl_config_pdu->dci_dl_pdu);
gNB->pdcch_vars.num_dci++;
gNB->pdcch_vars.num_pdsch_rnti++;
do_oai=1;
break;
case NFAPI_NR_DL_CONFIG_DLSCH_PDU_TYPE:
{
nfapi_nr_dl_config_dlsch_pdu_rel15_t *dlsch_pdu_rel15 = &dl_config_pdu->dlsch_pdu.dlsch_pdu_rel15;
uint16_t pdu_index = dlsch_pdu_rel15->pdu_index;
uint16_t tx_pdus = TX_req->tx_request_body.number_of_pdus;
uint16_t invalid_pdu = pdu_index == -1;
uint8_t *sdu = invalid_pdu ? NULL : pdu_index >= tx_pdus ? NULL : TX_req->tx_request_body.tx_pdu_list[pdu_index].segments[0].segment_data;
AssertFatal(sdu!=NULL,"sdu is null, pdu_index %d, tx_pdus %d\n",pdu_index,tx_pdus);
handle_nr_nfapi_dlsch_pdu(gNB,frame,slot,&dl_config_pdu->dlsch_pdu, sdu);
do_oai=1;
}
}
}
if (nfapi_mode && do_oai && !dont_send) {
oai_nfapi_tx_req(Sched_INFO->TX_req);
oai_nfapi_nr_dl_config_req(Sched_INFO->DL_req); // DJP - .dl_config_request_body.dl_config_pdu_list[0]); // DJP - FIXME TODO - yuk - only copes with 1 pdu
}
}
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