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openairinterface5g/openair1/SCHED_NR_UE/phy_procedures_nr_ue.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 phy_procedures_nr_ue.c
* \brief Implementation of UE procedures from 36.213 LTE specifications
* \author R. Knopp, F. Kaltenberger, N. Nikaein, A. Mico Pereperez, G. Casati
* \date 2018
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr, navid.nikaein@eurecom.fr, guido.casati@iis.fraunhofer.de
* \note
* \warning
*/
#define _GNU_SOURCE
#include "assertions.h"
#include "defs.h"
#include "PHY/defs_nr_UE.h"
#include "PHY/phy_extern_nr_ue.h"
#include "PHY/MODULATION/modulation_UE.h"
#include "PHY/NR_REFSIG/refsig_defs_ue.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_ue.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
#include "SCHED_NR_UE/defs.h"
#include "SCHED_NR_UE/pucch_uci_ue_nr.h"
#include "SCHED_NR/extern.h"
#include "SCHED_NR_UE/phy_sch_processing_time.h"
#include "PHY/NR_UE_ESTIMATION/nr_estimation.h"
#include "PHY/NR_TRANSPORT/nr_dci.h"
#ifdef EMOS
#include "SCHED/phy_procedures_emos.h"
#endif
#include "executables/softmodem-common.h"
#include "openair2/LAYER2/NR_MAC_UE/mac_proto.h"
//#define DEBUG_PHY_PROC
#define NR_PDCCH_SCHED
//#define NR_PDCCH_SCHED_DEBUG
//#define NR_PUCCH_SCHED
//#define NR_PUCCH_SCHED_DEBUG
#ifndef PUCCH
#define PUCCH
#endif
#include "LAYER2/NR_MAC_UE/mac_defs.h"
#include "LAYER2/NR_MAC_UE/mac_proto.h"
#include "common/utils/LOG/log.h"
#ifdef EMOS
fifo_dump_emos_UE emos_dump_UE;
#endif
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "intertask_interface.h"
#include "T.h"
#define DLSCH_RB_ALLOC 0x1fbf // skip DC RB (total 23/25 RBs)
#define DLSCH_RB_ALLOC_12 0x0aaa // skip DC RB (total 23/25 RBs)
#define NS_PER_SLOT 500000
char nr_mode_string[4][20] = {"NOT SYNCHED","PRACH","RAR","PUSCH"};
const uint8_t nr_rv_round_map_ue[4] = {0, 2, 1, 3};
extern double cpuf;
#if defined(EXMIMO) || defined(OAI_USRP) || defined(OAI_BLADERF) || defined(OAI_LMSSDR) || defined(OAI_ADRV9371_ZC706)
extern uint64_t downlink_frequency[MAX_NUM_CCs][4];
#endif
unsigned int gain_table[31] = {100,112,126,141,158,178,200,224,251,282,316,359,398,447,501,562,631,708,794,891,1000,1122,1258,1412,1585,1778,1995,2239,2512,2818,3162};
int get_tx_amp_prach(int power_dBm, int power_max_dBm, int N_RB_UL){
int gain_dB = power_dBm - power_max_dBm, amp_x_100 = -1;
switch (N_RB_UL) {
case 6:
amp_x_100 = AMP; // PRACH is 6 PRBS so no scale
break;
case 15:
amp_x_100 = 158*AMP; // 158 = 100*sqrt(15/6)
break;
case 25:
amp_x_100 = 204*AMP; // 204 = 100*sqrt(25/6)
break;
case 50:
amp_x_100 = 286*AMP; // 286 = 100*sqrt(50/6)
break;
case 75:
amp_x_100 = 354*AMP; // 354 = 100*sqrt(75/6)
break;
case 100:
amp_x_100 = 408*AMP; // 408 = 100*sqrt(100/6)
break;
default:
LOG_E(PHY, "Unknown PRB size %d\n", N_RB_UL);
return (amp_x_100);
break;
}
if (gain_dB < -30) {
return (amp_x_100/3162);
} else if (gain_dB > 0)
return (amp_x_100);
else
return (amp_x_100/gain_table[-gain_dB]); // 245 corresponds to the factor sqrt(25/6)
return (amp_x_100);
}
UE_MODE_t get_nrUE_mode(uint8_t Mod_id,uint8_t CC_id,uint8_t gNB_id){
return(PHY_vars_UE_g[Mod_id][CC_id]->UE_mode[gNB_id]);
}
uint16_t get_bw_scaling(uint16_t bwp_ul_NB_RB){
uint16_t bw_scaling;
// scale the 16 factor in N_TA calculation in 38.213 section 4.2 according to the used FFT size
switch (bwp_ul_NB_RB) {
case 32: bw_scaling = 4; break;
case 66: bw_scaling = 8; break;
case 106: bw_scaling = 16; break;
case 217: bw_scaling = 32; break;
case 245: bw_scaling = 32; break;
case 273: bw_scaling = 32; break;
default: abort();
}
return bw_scaling;
}
void nr_process_timing_advance(module_id_t Mod_id, uint8_t CC_id, uint8_t ta_command, uint8_t mu, uint16_t bwp_ul_NB_RB){
// 3GPP TS 38.213 p4.2
// scale by the scs numerology
int factor_mu = 1 << mu;
uint16_t bw_scaling = get_bw_scaling(bwp_ul_NB_RB);
PHY_vars_UE_g[Mod_id][CC_id]->timing_advance += (ta_command - 31) * bw_scaling / factor_mu;
LOG_D(PHY, "[UE %d] Got timing advance command %u from MAC, new value is %d\n", Mod_id, ta_command, PHY_vars_UE_g[Mod_id][CC_id]->timing_advance);
}
// WIP
// - todo: handle TA application as per ch 4.2 TS 38.213
void nr_process_timing_advance_rar(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint16_t ta_command) {
int factor_mu = 1 << ue->frame_parms.numerology_index;
uint16_t bwp_ul_NB_RB = ue->frame_parms.N_RB_UL;
uint16_t bw_scaling = get_bw_scaling(bwp_ul_NB_RB);
// Transmission timing adjustment (TS 38.213 p4.2)
ue->timing_advance = bw_scaling / factor_mu;
LOG_D(PHY, "[UE %d] Frame %d Slot %d, Received (RAR) timing advance command %d new value is %u \n", ue->Mod_id, proc->frame_rx, proc->nr_tti_rx, ta_command, ue->timing_advance);
}
void phy_procedures_nrUE_TX(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t gNB_id,
uint8_t thread_id){
//int32_t ulsch_start=0;
int slot_tx = proc->nr_tti_tx;
int frame_tx = proc->frame_tx;
uint8_t harq_pid = 0;
runmode_t mode = normal_txrx;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX,VCD_FUNCTION_IN);
memset(ue->common_vars.txdataF[0], 0, sizeof(int)*14*ue->frame_parms.ofdm_symbol_size);
LOG_D(PHY,"****** start TX-Chain for AbsSubframe %d.%d ******\n", frame_tx, slot_tx);
#if UE_TIMING_TRACE
start_meas(&ue->phy_proc_tx);
#endif
if (ue->UE_mode[gNB_id] <= PUSCH || get_softmodem_params()->phy_test == 1){
if (ue->ulsch[thread_id][gNB_id][0]->harq_processes[harq_pid]->status == ACTIVE)
nr_ue_ulsch_procedures(ue, harq_pid, frame_tx, slot_tx, thread_id, gNB_id);
if (get_softmodem_params()->usim_test==0) {
LOG_D(PHY, "Generating PUCCH\n");
pucch_procedures_ue_nr(ue,
gNB_id,
proc,
FALSE);
}
LOG_D(PHY, "Sending Uplink data \n");
nr_ue_pusch_common_procedures(ue,
slot_tx,
&ue->frame_parms,1);
//ue->ulsch[thread_id][gNB_id][0]->harq_processes[harq_pid]->pusch_pdu.nrOfLayers);
}
//LOG_M("txdata.m","txs",ue->common_vars.txdata[0],1228800,1,1);
/* RACH */
if (get_softmodem_params()->do_ra==1) {
if ((ue->UE_mode[gNB_id] < PUSCH) && (ue->prach_vars[gNB_id]->prach_Config_enabled == 1)) {
nr_ue_prach_procedures(ue, proc, gNB_id, mode);
}
}
LOG_D(PHY,"****** end TX-Chain for AbsSubframe %d.%d ******\n", frame_tx, slot_tx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX, VCD_FUNCTION_OUT);
#if UE_TIMING_TRACE
stop_meas(&ue->phy_proc_tx);
#endif
}
void nr_ue_measurement_procedures(uint16_t l, // symbol index of each slot [0..6]
PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t eNB_id,
uint16_t slot, // slot index of each radio frame [0..19]
runmode_t mode)
{
LOG_D(PHY,"ue_measurement_procedures l %u Ncp %d\n",l,ue->frame_parms.Ncp);
NR_DL_FRAME_PARMS *frame_parms=&ue->frame_parms;
int nr_tti_rx = proc->nr_tti_rx;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_MEASUREMENT_PROCEDURES, VCD_FUNCTION_IN);
if (l==2) {
// UE measurements on symbol 0
LOG_D(PHY,"Calling measurements nr_tti_rx %d, rxdata %p\n",nr_tti_rx,ue->common_vars.rxdata);
/*
nr_ue_measurements(ue,
0,
0,
0,
0,
nr_tti_rx);
*/
//(nr_tti_rx*frame_parms->samples_per_tti+ue->rx_offset)%(frame_parms->samples_per_tti*LTE_NUMBER_OF_SUBFRAMES_PER_FRAME)
#if T_TRACER
if(slot == 0)
T(T_UE_PHY_MEAS, T_INT(eNB_id), T_INT(ue->Mod_id), T_INT(proc->frame_rx%1024), T_INT(proc->nr_tti_rx),
T_INT((int)(10*log10(ue->measurements.rsrp[0])-ue->rx_total_gain_dB)),
T_INT((int)ue->measurements.rx_rssi_dBm[0]),
T_INT((int)(ue->measurements.rx_power_avg_dB[0] - ue->measurements.n0_power_avg_dB)),
T_INT((int)ue->measurements.rx_power_avg_dB[0]),
T_INT((int)ue->measurements.n0_power_avg_dB),
T_INT((int)ue->measurements.wideband_cqi_avg[0]),
T_INT((int)ue->common_vars.freq_offset));
#endif
}
#if 0
if (l==(6-ue->frame_parms.Ncp)) {
// make sure we have signal from PSS/SSS for N0 measurement
// LOG_I(PHY," l==(6-ue->frame_parms.Ncp) ue_rrc_measurements\n");
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_RRC_MEASUREMENTS, VCD_FUNCTION_IN);
ue_rrc_measurements(ue,
slot,
abstraction_flag);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_RRC_MEASUREMENTS, VCD_FUNCTION_OUT);
}
#endif
// accumulate and filter timing offset estimation every subframe (instead of every frame)
if (( slot == 2) && (l==(2-frame_parms->Ncp))) {
// AGC
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GAIN_CONTROL, VCD_FUNCTION_IN);
//printf("start adjust gain power avg db %d\n", ue->measurements.rx_power_avg_dB[eNB_id]);
phy_adjust_gain_nr (ue,ue->measurements.rx_power_avg_dB[eNB_id],eNB_id);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GAIN_CONTROL, VCD_FUNCTION_OUT);
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_MEASUREMENT_PROCEDURES, VCD_FUNCTION_OUT);
}
void nr_ue_pbch_procedures(uint8_t gNB_id,
PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t abstraction_flag)
{
// int i;
//int pbch_tx_ant=0;
//uint8_t pbch_phase;
int ret = 0;
//static uint8_t first_run = 1;
//uint8_t pbch_trials = 0;
DevAssert(ue);
int frame_rx = proc->frame_rx;
int nr_tti_rx = proc->nr_tti_rx;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PBCH_PROCEDURES, VCD_FUNCTION_IN);
//LOG_I(PHY,"[UE %d] Frame %d, Trying PBCH %d (NidCell %d, gNB_id %d)\n",ue->Mod_id,frame_rx,pbch_phase,ue->frame_parms.Nid_cell,gNB_id);
ret = nr_rx_pbch(ue, proc,
ue->pbch_vars[gNB_id],
&ue->frame_parms,
gNB_id,
(ue->frame_parms.ssb_index)&7,
SISO,
ue->high_speed_flag);
if (ret==0) {
ue->pbch_vars[gNB_id]->pdu_errors_conseq = 0;
// Switch to PRACH state if it is first PBCH after initial synch and no timing correction is performed
if (ue->UE_mode[gNB_id] == NOT_SYNCHED && ue->no_timing_correction == 1){
ue->UE_mode[gNB_id] = PRACH;
ue->prach_resources[gNB_id]->sync_frame = frame_rx;
ue->prach_resources[gNB_id]->init_msg1 = 0;
}
#ifdef DEBUG_PHY_PROC
uint16_t frame_tx;
LOG_D(PHY,"[UE %d] frame %d, nr_tti_rx %d, Received PBCH (MIB): frame_tx %d. N_RB_DL %d\n",
ue->Mod_id,
frame_rx,
nr_tti_rx,
frame_tx,
ue->frame_parms.N_RB_DL);
#endif
} else {
LOG_E(PHY,"[UE %d] frame %d, nr_tti_rx %d, Error decoding PBCH!\n",
ue->Mod_id,frame_rx, nr_tti_rx);
/*
write_output("rxsig0.m","rxs0", ue->common_vars.rxdata[0],ue->frame_parms.samples_per_subframe,1,1);
write_output("H00.m","h00",&(ue->common_vars.dl_ch_estimates[0][0][0]),((ue->frame_parms.Ncp==0)?7:6)*(ue->frame_parms.ofdm_symbol_size),1,1);
write_output("H10.m","h10",&(ue->common_vars.dl_ch_estimates[0][2][0]),((ue->frame_parms.Ncp==0)?7:6)*(ue->frame_parms.ofdm_symbol_size),1,1);
write_output("rxsigF0.m","rxsF0", ue->common_vars.rxdataF[0],8*ue->frame_parms.ofdm_symbol_size,1,1);
write_output("PBCH_rxF0_ext.m","pbch0_ext",ue->pbch_vars[0]->rxdataF_ext[0],12*4*6,1,1);
write_output("PBCH_rxF0_comp.m","pbch0_comp",ue->pbch_vars[0]->rxdataF_comp[0],12*4*6,1,1);
write_output("PBCH_rxF_llr.m","pbch_llr",ue->pbch_vars[0]->llr,(ue->frame_parms.Ncp==0) ? 1920 : 1728,1,4);
exit(-1);
*/
ue->pbch_vars[gNB_id]->pdu_errors_conseq++;
ue->pbch_vars[gNB_id]->pdu_errors++;
if (ue->pbch_vars[gNB_id]->pdu_errors_conseq>=100) {
LOG_E(PHY,"More that 100 consecutive PBCH errors! Exiting!\n");
exit_fun("More that 100 consecutive PBCH errors! Exiting!\n");
}
}
if (frame_rx % 100 == 0) {
ue->pbch_vars[gNB_id]->pdu_fer = ue->pbch_vars[gNB_id]->pdu_errors - ue->pbch_vars[gNB_id]->pdu_errors_last;
ue->pbch_vars[gNB_id]->pdu_errors_last = ue->pbch_vars[gNB_id]->pdu_errors;
}
#ifdef DEBUG_PHY_PROC
LOG_D(PHY,"[UE %d] frame %d, slot %d, PBCH errors = %d, consecutive errors = %d!\n",
ue->Mod_id,frame_rx, nr_tti_rx,
ue->pbch_vars[gNB_id]->pdu_errors,
ue->pbch_vars[gNB_id]->pdu_errors_conseq);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PBCH_PROCEDURES, VCD_FUNCTION_OUT);
}
unsigned int nr_get_tx_amp(int power_dBm, int power_max_dBm, int N_RB_UL, int nb_rb)
{
int gain_dB = power_dBm - power_max_dBm;
double gain_lin;
gain_lin = pow(10,.1*gain_dB);
if ((nb_rb >0) && (nb_rb <= N_RB_UL)) {
return((int)(AMP*sqrt(gain_lin*N_RB_UL/(double)nb_rb)));
}
else {
LOG_E(PHY,"Illegal nb_rb/N_RB_UL combination (%d/%d)\n",nb_rb,N_RB_UL);
//mac_xface->macphy_exit("");
}
return(0);
}
#ifdef NR_PDCCH_SCHED
int nr_ue_pdcch_procedures(uint8_t gNB_id,
PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc)
{
int frame_rx = proc->frame_rx;
int nr_tti_rx = proc->nr_tti_rx;
unsigned int dci_cnt=0;
/*
// unsigned int dci_cnt=0, i; //removed for nr_ue_pdcch_procedures and added in the loop for nb_coreset_active
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Entering function nr_ue_pdcch_procedures() \n");
#endif
int frame_rx = proc->frame_rx;
int nr_tti_rx = proc->nr_tti_rx;
NR_DCI_ALLOC_t dci_alloc_rx[8];
//uint8_t next1_thread_id = ue->current_thread_id[nr_tti_rx]== (RX_NB_TH-1) ? 0:(ue->current_thread_id[nr_tti_rx]+1);
//uint8_t next2_thread_id = next1_thread_id== (RX_NB_TH-1) ? 0:(next1_thread_id+1);
// table dci_fields_sizes_cnt contains dci_fields_sizes for each time a dci is decoded in the slot
// each element represents the size in bits for each dci field, for each decoded dci -> [dci_cnt-1]
// each time a dci is decode at dci_cnt, the values of the table dci_fields_sizes[i][j] will be copied at table dci_fields_sizes_cnt[dci_cnt-1][i][j]
// table dci_fields_sizes_cnt[dci_cnt-1][i][j] will then be used in function nr_extract_dci_info
uint8_t dci_fields_sizes_cnt[MAX_NR_DCI_DECODED_SLOT][NBR_NR_DCI_FIELDS][NBR_NR_FORMATS];
int nb_searchspace_active=0;
NR_UE_PDCCH **pdcch_vars = ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]];
NR_UE_PDCCH *pdcch_vars2 = ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id];
// s in TS 38.212 Subclause 10.1, for each active BWP the UE can deal with 10 different search spaces
// Higher layers have updated the number of searchSpaces with are active in the current slot and this value is stored in variable nb_searchspace_total
int nb_searchspace_total = pdcch_vars2->nb_search_space;
pdcch_vars[gNB_id]->crnti = 0x1234; //to be check how to set when using loop memory
uint16_t c_rnti=pdcch_vars[gNB_id]->crnti;
uint16_t cs_rnti=0,new_rnti=0,tc_rnti=0;
uint16_t p_rnti=P_RNTI;
uint16_t si_rnti=SI_RNTI;
uint16_t ra_rnti=99;
uint16_t sp_csi_rnti=0,sfi_rnti=0,int_rnti=0,tpc_pusch_rnti=0,tpc_pucch_rnti=0,tpc_srs_rnti=0; //FIXME
uint16_t crc_scrambled_values[TOTAL_NBR_SCRAMBLED_VALUES] =
{c_rnti,cs_rnti,new_rnti,tc_rnti,p_rnti,si_rnti,ra_rnti,sp_csi_rnti,sfi_rnti,int_rnti,tpc_pusch_rnti,tpc_pucch_rnti,tpc_srs_rnti};
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> there is a bug in FAPI to calculate nb_searchspace_total=%d\n",nb_searchspace_total);
#endif
if (nb_searchspace_total>1) nb_searchspace_total=1; // to be removed when fixing bug in FAPI
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> there is a bug in FAPI to calculate nb_searchspace_total so we set it to 1...\n");
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> the number of searchSpaces active in the current slot(%d) is %d) \n",
nr_tti_rx,nb_searchspace_total);
#endif
//FK: we define dci_ind and dl_indication as local variables, this way the call to the mac should be thread safe
fapi_nr_dci_indication_t dci_ind;
nr_downlink_indication_t dl_indication;
// p in TS 38.212 Subclause 10.1, for each active BWP the UE can deal with 3 different CORESETs (including coresetId 0 for common search space)
//int nb_coreset_total = NR_NBR_CORESET_ACT_BWP;
unsigned int dci_cnt=0;
// this table contains 56 (NBR_NR_DCI_FIELDS) elements for each dci field and format described in TS 38.212. Each element represents the size in bits for each dci field
//uint8_t dci_fields_sizes[NBR_NR_DCI_FIELDS][NBR_NR_FORMATS] = {{0}};
// this is the UL bandwidth part. FIXME! To be defined where this value comes from
// uint16_t n_RB_ULBWP = 106;
// this is the DL bandwidth part. FIXME! To be defined where this value comes from
// First we have to identify each searchSpace active at a time and do PDCCH monitoring corresponding to current searchSpace
// Up to 10 searchSpaces can be configured to UE (s<=10)
for (nb_searchspace_active=0; nb_searchspace_active<nb_searchspace_total; nb_searchspace_active++){
int nb_coreset_active=nb_searchspace_active;
//int do_pdcch_monitoring_current_slot=1; // this variable can be removed and fapi is handling
// The following code has been removed as it is handled by higher layers (fapi)
//
// Verify that monitoring is required at the slot nr_tti_rx. We will run pdcch procedure only if do_pdcch_monitoring_current_slot=1
// For Type0-PDCCH searchspace, we need to calculate the monitoring slot from Tables 13-1 .. 13-15 in TS 38.213 Subsection 13
//NR_UE_SLOT_PERIOD_OFFSET_t sl_period_offset_mon = pdcch_vars2->searchSpace[nb_searchspace_active].monitoringSlotPeriodicityAndOffset;
//if (sl_period_offset_mon == nr_sl1) {
//do_pdcch_monitoring_current_slot=1; // PDCCH monitoring in every slot
//} else if (nr_tti_rx%(uint16_t)sl_period_offset_mon == pdcch_vars2->searchSpace[nb_searchspace_active].monitoringSlotPeriodicityAndOffset_offset) {
//do_pdcch_monitoring_current_slot=1; // PDCCH monitoring in every monitoringSlotPeriodicityAndOffset slot with offset
//}
// FIXME
// For PDCCH monitoring when overlap with SS/PBCH according to 38.213 v15.1.0 Section 10
// To be implemented LATER !!!
//int _offset,_index,_M;
//int searchSpace_id = pdcch_vars2->searchSpace[nb_searchspace_active].searchSpaceId;
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> nb_searchspace_active=%d do_pdcch_monitoring_current_slot=%d (to be removed)\n",
nb_searchspace_active,
do_pdcch_monitoring_current_slot);
#endif
// if (do_pdcch_monitoring_current_slot) {
// the searchSpace indicates that we need to monitor PDCCH in current nr_tti_rx
// get the parameters describing the current SEARCHSPACE
// the CORESET id applicable to the current SearchSpace
//int searchSpace_coreset_id = pdcch_vars2->searchSpace[nb_searchspace_active].controlResourceSetId;
// FIXME this variable is a bit string (14 bits) identifying every OFDM symbol in a slot.
// at the moment we will not take into consideration this variable and we will consider that the OFDM symbol offset is always the first OFDM in a symbol
uint16_t symbol_within_slot_mon = pdcch_vars2->searchSpace[nb_searchspace_active].monitoringSymbolWithinSlot;
// get the remaining parameters describing the current SEARCHSPACE: // FIXME! To be defined where we get this information from
//NR_UE_SEARCHSPACE_nbrCAND_t num_cand_L1 = pdcch_vars2->searchSpace[nb_searchspace_active].nrofCandidates_aggrlevel1;
//NR_UE_SEARCHSPACE_nbrCAND_t num_cand_L2 = pdcch_vars2->searchSpace[nb_searchspace_active].nrofCandidates_aggrlevel2;
//NR_UE_SEARCHSPACE_nbrCAND_t num_cand_L4 = pdcch_vars2->searchSpace[nb_searchspace_active].nrofCandidates_aggrlevel4;
//NR_UE_SEARCHSPACE_nbrCAND_t num_cand_L8 = pdcch_vars2->searchSpace[nb_searchspace_active].nrofCandidates_aggrlevel8;
//NR_UE_SEARCHSPACE_nbrCAND_t num_cand_L16 = pdcch_vars2->searchSpace[nb_searchspace_active].nrofCandidates_aggrlevel16;
// FIXME! A table of five enum elements
// searchSpaceType indicates whether this is a common search space or a UE-specific search space
//int searchSpaceType = pdcch_vars2->searchSpace[nb_searchspace_active].searchSpaceType.type;
NR_SEARCHSPACE_TYPE_t searchSpaceType = ue_specific;//common;
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> searchSpaceType=%d is hardcoded THIS HAS TO BE FIXED!!!\n",
searchSpaceType);
#endif
//while ((searchSpace_coreset_id != pdcch_vars2->coreset[nb_coreset_active].controlResourceSetId) && (nb_coreset_active<nb_coreset_total)) {
// we need to identify the CORESET associated to the active searchSpace
//nb_coreset_active++;
if (nb_coreset_active >= nb_coreset_total) return 0; // the coreset_id could not be found. There is a problem
}
//we do not need these parameters yet
// get the parameters describing the current CORESET
//int coreset_duration = pdcch_vars2->coreset[nb_coreset_active].duration;
//uint64_t coreset_freq_dom = pdcch_vars2->coreset[nb_coreset_active].frequencyDomainResources;
//int coreset_shift_index = pdcch_vars2->coreset[nb_coreset_active].cce_reg_mappingType.shiftIndex;
// NR_UE_CORESET_REG_bundlesize_t coreset_bundlesize = pdcch_vars2->coreset[nb_coreset_active].cce_reg_mappingType.reg_bundlesize;
// NR_UE_CORESET_interleaversize_t coreset_interleaversize = pdcch_vars2->coreset[nb_coreset_active].cce_reg_mappingType.interleaversize;
// NR_UE_CORESET_precoder_granularity_t precoder_granularity = pdcch_vars2->coreset[nb_coreset_active].precoderGranularity;
// int tci_statesPDCCH = pdcch_vars2->coreset[nb_coreset_active].tciStatesPDCCH;
// int tci_present = pdcch_vars2->coreset[nb_coreset_active].tciPresentInDCI;
// uint16_t pdcch_DMRS_scrambling_id = pdcch_vars2->coreset[nb_coreset_active].pdcchDMRSScramblingID;
// A set of PDCCH candidates for a UE to monitor is defined in terms of PDCCH search spaces.
// Searchspace types:
// Type0-PDCCH common search space for a DCI format with CRC scrambled by a SI-RNTI
// number of consecutive resource blocks and a number of consecutive symbols for
// the control resource set of the Type0-PDCCH common search space from
// the four most significant bits of RMSI-PDCCH-Config as described in Tables 13-1 through 13-10
// and determines PDCCH monitoring occasions
// from the four least significant bits of RMSI-PDCCH-Config,
// included in MasterInformationBlock, as described in Tables 13-11 through 13-15
// Type0A-PDCCH common search space for a DCI format with CRC scrambled by a SI-RNTI
// Type1-PDCCH common search space for a DCI format with CRC scrambled by a RA-RNTI, or a TC-RNTI, or a C-RNTI
// Type2-PDCCH common search space for a DCI format with CRC scrambled by a P-RNTI
// Type3-PDCCH common search space for a DCI format with CRC scrambled by INT-RNTI, or SFI-RNTI,
// or TPC-PUSCH-RNTI, or TPC-PUCCH-RNTI, or TPC-SRS-RNTI, or C-RNTI, or CS-RNTI(s), or SP-CSI-RNTI
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PDCCH_PROCEDURES, VCD_FUNCTION_IN);
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_rx_pdcch_stats);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_PDCCH, VCD_FUNCTION_IN);
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Entering function nr_rx_pdcch with gNB_id=%d (nb_coreset_active=%d, (symbol_within_slot_mon&0x3FFF)=%d, searchSpaceType=%d)\n",
gNB_id,nb_coreset_active,(symbol_within_slot_mon&0x3FFF),
searchSpaceType);
#endif
nr_rx_pdcch(ue,
proc->frame_rx,
nr_tti_rx,
gNB_id,
//(ue->frame_parms.mode1_flag == 1) ? SISO : ALAMOUTI,
SISO,
ue->high_speed_flag,
ue->is_secondary_ue,
nb_coreset_active,
(symbol_within_slot_mon&0x3FFF),
searchSpaceType);
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Ending function nr_rx_pdcch(nb_coreset_active=%d, (symbol_within_slot_mon&0x3FFF)=%d, searchSpaceType=%d)\n",
nb_coreset_active,(symbol_within_slot_mon&0x3FFF),
searchSpaceType);
#endif
*/
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_PDCCH, VCD_FUNCTION_IN);
nr_rx_pdcch(ue,
proc->frame_rx,
nr_tti_rx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_RX_PDCCH, VCD_FUNCTION_OUT);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DCI_DECODING, VCD_FUNCTION_IN);
#ifdef NR_PDCCH_SCHED_DEBUG
printf("<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Entering function nr_dci_decoding_procedure with (nb_searchspace_active=%d)\n",
pdcch_vars->nb_search_space);
#endif
fapi_nr_dci_indication_t dci_ind={0};
nr_downlink_indication_t dl_indication={0};
dci_cnt = nr_dci_decoding_procedure(ue,
proc->frame_rx,
nr_tti_rx,
&dci_ind);
#ifdef NR_PDCCH_SCHED_DEBUG
LOG_I(PHY,"<-NR_PDCCH_PHY_PROCEDURES_LTE_UE (nr_ue_pdcch_procedures)-> Ending function nr_dci_decoding_procedure() -> dci_cnt=%u\n",dci_cnt);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_DCI_DECODING, VCD_FUNCTION_OUT);
//LOG_D(PHY,"[UE %d][PUSCH] Frame %d nr_tti_rx %d PHICH RX\n",ue->Mod_id,frame_rx,nr_tti_rx);
for (int i=0; i<dci_cnt; i++) {
LOG_D(PHY,"[UE %d] AbsSubFrame %d.%d, Mode %s: DCI %i of %d total DCIs found --> rnti %x : format %d\n",
ue->Mod_id,frame_rx%1024,nr_tti_rx,nr_mode_string[ue->UE_mode[gNB_id]],
i + 1,
dci_cnt,
dci_ind.dci_list[i].rnti,
dci_ind.dci_list[i].dci_format);
}
ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->dci_received += dci_cnt;
dci_ind.number_of_dcis = dci_cnt;
/*
for (int i=0; i<dci_cnt; i++) {
memset(&dci_ind.dci_list[i].dci,0,sizeof(fapi_nr_dci_pdu_rel15_t));
dci_ind.dci_list[i].rnti = dci_alloc_rx[i].rnti;
dci_ind.dci_list[i].dci_format = dci_alloc_rx[i].format;
dci_ind.dci_list[i].n_CCE = dci_alloc_rx[i].firstCCE;
dci_ind.dci_list[i].N_CCE = (int)dci_alloc_rx[i].L;
status = nr_extract_dci_info(ue,
gNB_id,
ue->frame_parms.frame_type,
dci_alloc_rx[i].dci_length,
dci_alloc_rx[i].rnti,
dci_alloc_rx[i].dci_pdu,
&dci_ind.dci_list[i].dci,
dci_fields_sizes_cnt[i],
dci_alloc_rx[i].format,
nr_tti_rx,
pdcch_vars2->n_RB_BWP[nb_searchspace_active],
pdcch_vars2->n_RB_BWP[nb_searchspace_active],
crc_scrambled_values);
if(status == 0) {
LOG_W(PHY,"<-NR_PDCCH_PHY_PROCEDURES_UE (nr_ue_pdcch_procedures)-> bad DCI %d !!! \n",dci_alloc_rx[i].format);
return(-1);
}
LOG_D(PHY,"<-NR_PDCCH_PHY_PROCEDURES_UE (nr_ue_pdcch_procedures)-> Ending function nr_extract_dci_info()\n");
} // end for loop dci_cnt
*/
// fill dl_indication message
dl_indication.module_id = ue->Mod_id;
dl_indication.cc_id = ue->CC_id;
dl_indication.gNB_index = gNB_id;
dl_indication.frame = frame_rx;
dl_indication.slot = nr_tti_rx;
dl_indication.rx_ind = NULL; //no data, only dci for now
dl_indication.dci_ind = &dci_ind;
// send to mac
ue->if_inst->dl_indication(&dl_indication, NULL);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_rx_pdcch_stats);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_PDCCH_PROCEDURES, VCD_FUNCTION_OUT);
return(dci_cnt);
}
#endif // NR_PDCCH_SCHED
int nr_ue_pdsch_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, int eNB_id, PDSCH_t pdsch, NR_UE_DLSCH_t *dlsch0, NR_UE_DLSCH_t *dlsch1) {
int nr_tti_rx = proc->nr_tti_rx;
int m;
int i_mod,eNB_id_i,dual_stream_UE;
int first_symbol_flag=0;
if (!dlsch0)
return 0;
if (dlsch0->active == 0)
return 0;
if (!dlsch1) {
int harq_pid = dlsch0->current_harq_pid;
uint16_t BWPStart = dlsch0->harq_processes[harq_pid]->BWPStart;
// uint16_t BWPSize = dlsch0->harq_processes[harq_pid]->BWPSize;
uint16_t pdsch_start_rb = dlsch0->harq_processes[harq_pid]->start_rb;
uint16_t pdsch_nb_rb = dlsch0->harq_processes[harq_pid]->nb_rb;
uint16_t s0 = dlsch0->harq_processes[harq_pid]->start_symbol;
uint16_t s1 = dlsch0->harq_processes[harq_pid]->nb_symbols;
LOG_D(PHY,"[UE %d] PDSCH type %d active in nr_tti_rx %d, harq_pid %d (%d), rb_start %d, nb_rb %d, symbol_start %d, nb_symbols %d, DMRS mask %x\n",ue->Mod_id,pdsch,nr_tti_rx,harq_pid,dlsch0->harq_processes[harq_pid]->status,pdsch_start_rb,pdsch_nb_rb,s0,s1,dlsch0->harq_processes[harq_pid]->dlDmrsSymbPos);
// do channel estimation for first DMRS only
for (m = s0; m < 3; m++) {
if (((1<<m)&dlsch0->harq_processes[harq_pid]->dlDmrsSymbPos) > 0) {
nr_pdsch_channel_estimation(ue,
0 /*eNB_id*/,
nr_tti_rx,
0 /*p*/,
m,
ue->frame_parms.first_carrier_offset+(BWPStart + pdsch_start_rb)*12,
pdsch_nb_rb);
LOG_D(PHY,"Channel Estimation in symbol %d\n",m);
break;
}
}
for (m = s0; m < (s1 + s0); m++) {
dual_stream_UE = 0;
eNB_id_i = eNB_id+1;
i_mod = 0;
if ((m==s0) && (m<3))
first_symbol_flag = 1;
else
first_symbol_flag = 0;
#if UE_TIMING_TRACE
uint8_t slot = 0;
if(m >= ue->frame_parms.symbols_per_slot>>1)
slot = 1;
start_meas(&ue->dlsch_llr_stats_parallelization[ue->current_thread_id[nr_tti_rx]][slot]);
#endif
// process DLSCH received in first slot
// skip DMRS symbols (will have to check later if PDSCH/DMRS are multiplexed
if (((1<<m)&dlsch0->harq_processes[harq_pid]->dlDmrsSymbPos) == 0) {
if (nr_rx_pdsch(ue,
pdsch,
eNB_id,
eNB_id_i,
proc->frame_rx,
nr_tti_rx, // nr_tti_rx,
m,
first_symbol_flag,
dual_stream_UE,
i_mod,
dlsch0->current_harq_pid) < 0)
return -1;
}
else { // This is to adjust the llr offset in the case of skipping over a dmrs symbol (i.e. in case of no PDSCH REs in DMRS)
if (pdsch == RA_PDSCH) ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->llr_offset[m]=ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->llr_offset[m-1];
else if (pdsch == PDSCH) {
if (nr_rx_pdsch(ue,
pdsch,
eNB_id,
eNB_id_i,
proc->frame_rx,
nr_tti_rx, // nr_tti_rx,
m,
first_symbol_flag,
dual_stream_UE,
i_mod,
dlsch0->current_harq_pid) < 0)
return -1;
}
else AssertFatal(1==0,"not RA_PDSCH or PDSCH\n");
}
if (pdsch == PDSCH) LOG_D(PHY,"Done processing symbol %d : llr_offset %d\n",m,ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->llr_offset[m]);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_llr_stats_parallelization[ue->current_thread_id[nr_tti_rx]][slot]);
#if DISABLE_LOG_X
printf("[AbsSFN %d.%d] LLR Computation Symbol %d %5.2f \n",proc->frame_rx,nr_tti_rx,m,ue->dlsch_llr_stats_parallelization[ue->current_thread_id[nr_tti_rx]][slot].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "[AbsSFN %d.%d] LLR Computation Symbol %d %5.2f \n",proc->frame_rx,nr_tti_rx,m,ue->dlsch_llr_stats_parallelization[ue->current_thread_id[nr_tti_rx]][slot].p_time/(cpuf*1000.0));
#endif
#endif
if(first_symbol_flag)
{
proc->first_symbol_available = 1;
}
} // CRNTI active
}
return 0;
}
// WIP fix:
// - time domain indication hardcoded to 0 for k2 offset
// - extend TS 38.213 ch 8.3 Msg3 PUSCH
// - b buffer
// - ulsch power offset
// - UE_mode == PUSCH case (should be handled by TA updates)
// - harq
// - optimize: mu_pusch, j and table_6_1_2_1_1_2_time_dom_res_alloc_A are already defined in nr_ue_procedures
void nr_process_rar(nr_downlink_indication_t *dl_info) {
module_id_t module_id = dl_info->module_id;
int cc_id = dl_info->cc_id, frame_rx = dl_info->proc->frame_rx, nr_tti_rx = dl_info->proc->nr_tti_rx, ta_command;
uint8_t gNB_index = dl_info->gNB_index; // *rar;
PHY_VARS_NR_UE *ue = PHY_vars_UE_g[module_id][cc_id];
NR_UE_DLSCH_t *dlsch0 = ue->dlsch_ra[gNB_index];
UE_MODE_t UE_mode = ue->UE_mode[gNB_index];
NR_PRACH_RESOURCES_t *prach_resources = ue->prach_resources[gNB_index];
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Received RAR mode %d\n", module_id, frame_rx, nr_tti_rx, UE_mode);
if (ue->mac_enabled == 1) {
if ((UE_mode != PUSCH) && (prach_resources->Msg3 != NULL)) {
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Invoking MAC for RAR (current preamble %d)\n", module_id, frame_rx, nr_tti_rx, prach_resources->ra_PreambleIndex);
ta_command = nr_ue_process_rar(ue->Mod_id,
cc_id,
frame_rx,
nr_tti_rx,
dlsch0->harq_processes[0]->b,
&ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->pdcch_config[0].rnti,
prach_resources->ra_PreambleIndex,
dlsch0->harq_processes[0]->b); // alter the 'b' buffer so it contains only the selected RAR header and RAR payload
if (ta_command != 0xffff) {
LOG_D(PHY,"[UE %d][RAPROC] Frame %d subframe %d Got Temporary C-RNTI %x and timing advance %d from RAR\n",
ue->Mod_id,
frame_rx,
nr_tti_rx,
ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][gNB_index]->pdcch_config[0].rnti,
ta_command);
nr_process_timing_advance_rar(ue, dl_info->proc, ta_command);
if (ue->mode != debug_prach)
ue->UE_mode[gNB_index] = RA_RESPONSE;
} else {
LOG_W(PHY,"[UE %d][RAPROC] Received RAR preamble (%d) doesn't match !!!\n", ue->Mod_id, prach_resources->ra_PreambleIndex);
}
}
} else {
// rar = dlsch0->harq_processes[0]->b+1;
// ta_command = ((((uint16_t)(rar[0]&0x7f))<<4) + (rar[1]>>4));
// nr_process_timing_advance_rar(ue, dl_info->proc, ta_command);
}
}
// if contention resolution fails, go back to UE mode PRACH
void nr_ra_failed(uint8_t Mod_id, uint8_t CC_id, uint8_t gNB_index) {
PHY_VARS_NR_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
ue->UE_mode[gNB_index] = PRACH;
for (int i=0; i <RX_NB_TH_MAX; i++ ) {
ue->pdcch_vars[i][gNB_index]->pdcch_config[0].rnti = 0;
}
LOG_E(PHY,"[UE %d] [RAPROC] Random-access procedure fails, going back to PRACH\n", Mod_id);
}
void nr_ra_succeeded(uint8_t Mod_id,
uint8_t CC_id,
uint8_t gNB_index){
LOG_I(PHY,"[UE %d][RAPROC] RA procedure succeeded. UE set to PUSCH mode\n", Mod_id);
PHY_VARS_NR_UE *ue = PHY_vars_UE_g[Mod_id][CC_id];
ue->ulsch_Msg3_active[gNB_index] = 0;
ue->UE_mode[gNB_index] = PUSCH;
}
void nr_ue_dlsch_procedures(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
int eNB_id,
PDSCH_t pdsch,
NR_UE_DLSCH_t *dlsch0,
NR_UE_DLSCH_t *dlsch1,
int *dlsch_errors,
runmode_t mode) {
int harq_pid = dlsch0->current_harq_pid;
int frame_rx = proc->frame_rx;
int nr_tti_rx = proc->nr_tti_rx;
int ret=0, ret1=0;
NR_UE_PDSCH *pdsch_vars;
uint8_t is_cw0_active = 0;
uint8_t is_cw1_active = 0;
uint8_t dmrs_type, nb_re_dmrs;
uint16_t length_dmrs = 1;
uint16_t nb_symb_sch = 9;
nr_downlink_indication_t dl_indication;
fapi_nr_rx_indication_t rx_ind;
// params for UL time alignment procedure
NR_UL_TIME_ALIGNMENT_t *ul_time_alignment = &ue->ul_time_alignment[eNB_id];
uint16_t slots_per_frame = ue->frame_parms.slots_per_frame;
uint16_t slots_per_subframe = ue->frame_parms.slots_per_subframe;
uint8_t numerology = ue->frame_parms.numerology_index, mapping_type_ul, mapping_type_dl;
int ul_tx_timing_adjustment, N_TA_max, factor_mu, N_t_1, N_t_2, N_1, N_2, d_1_1 = 0, d_2_1, d;
uint8_t d_2_2 = 0;// set to 0 because there is only 1 BWP
// TODO this should corresponds to the switching time as defined in
// TS 38.133
uint16_t ofdm_symbol_size = ue->frame_parms.ofdm_symbol_size;
uint16_t nb_prefix_samples = ue->frame_parms.nb_prefix_samples;
uint32_t t_subframe = 1; // subframe duration of 1 msec
uint16_t bw_scaling, start_symbol;
float tc_factor;
if (dlsch0==NULL)
AssertFatal(0,"dlsch0 should be defined at this level \n");
is_cw0_active = dlsch0->harq_processes[harq_pid]->status;
nb_symb_sch = dlsch0->harq_processes[harq_pid]->nb_symbols;
start_symbol = dlsch0->harq_processes[harq_pid]->start_symbol;
dmrs_type = dlsch0->harq_processes[harq_pid]->dmrsConfigType;
if (dmrs_type==NFAPI_NR_DMRS_TYPE1) {
nb_re_dmrs = 6*dlsch0->harq_processes[harq_pid]->n_dmrs_cdm_groups;
}
else {
nb_re_dmrs = 4*dlsch0->harq_processes[harq_pid]->n_dmrs_cdm_groups;
}
if(dlsch1)
is_cw1_active = dlsch1->harq_processes[harq_pid]->status;
LOG_D(PHY,"AbsSubframe %d.%d Start LDPC Decoder for CW0 [harq_pid %d] ? %d \n", frame_rx%1024, nr_tti_rx, harq_pid, is_cw0_active);
LOG_D(PHY,"AbsSubframe %d.%d Start LDPC Decoder for CW1 [harq_pid %d] ? %d \n", frame_rx%1024, nr_tti_rx, harq_pid, is_cw1_active);
if(is_cw0_active && is_cw1_active)
{
dlsch0->Kmimo = 2;
dlsch1->Kmimo = 2;
}
else
{
dlsch0->Kmimo = 1;
}
if (1) {
switch (pdsch) {
case SI_PDSCH:
case RA_PDSCH:
case P_PDSCH:
case PDSCH:
pdsch_vars = ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id];
break;
case PMCH:
case PDSCH1:
LOG_E(PHY,"Illegal PDSCH %d for ue_pdsch_procedures\n",pdsch);
pdsch_vars = NULL;
return;
break;
default:
pdsch_vars = NULL;
return;
break;
}
if (frame_rx < *dlsch_errors)
*dlsch_errors=0;
if (pdsch == RA_PDSCH) {
if (ue->prach_resources[eNB_id]!=NULL)
dlsch0->rnti = ue->prach_resources[eNB_id]->ra_RNTI;
else {
LOG_E(PHY,"[UE %d] Frame %d, nr_tti_rx %d: FATAL, prach_resources is NULL\n", ue->Mod_id, frame_rx, nr_tti_rx);
//mac_xface->macphy_exit("prach_resources is NULL");
return;
}
}
// exit dlsch procedures as there are no active dlsch
if (is_cw0_active != ACTIVE && is_cw1_active != ACTIVE)
return;
// start ldpc decode for CW 0
dlsch0->harq_processes[harq_pid]->G = nr_get_G(dlsch0->harq_processes[harq_pid]->nb_rb,
nb_symb_sch,
nb_re_dmrs,
length_dmrs,
dlsch0->harq_processes[harq_pid]->Qm,
dlsch0->harq_processes[harq_pid]->Nl);
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_unscrambling_stats);
#endif
nr_dlsch_unscrambling(pdsch_vars->llr[0],
dlsch0->harq_processes[harq_pid]->G,
0,
ue->frame_parms.Nid_cell,
dlsch0->rnti);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_unscrambling_stats);
#endif
#if 0
LOG_I(PHY," ------ start ldpc decoder for AbsSubframe %d.%d / %d ------ \n", frame_rx, nr_tti_rx, harq_pid);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> nb_rb %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->harq_processes[harq_pid]->nb_rb);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> rb_alloc_even %x \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->harq_processes[harq_pid]->rb_alloc_even);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> Qm %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->harq_processes[harq_pid]->Qm);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> Nl %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->harq_processes[harq_pid]->Nl);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> G %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->harq_processes[harq_pid]->G);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> Kmimo %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch0->Kmimo);
LOG_I(PHY,"start ldpc decode for CW 0 for AbsSubframe %d.%d / %d --> Pdcch Sym %d \n", frame_rx, nr_tti_rx, harq_pid, ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->num_pdcch_symbols);
#endif
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]]);
#endif
#ifdef UE_DLSCH_PARALLELISATION
ret = nr_dlsch_decoding_mthread(ue,
proc,
eNB_id,
pdsch_vars->llr[0],
&ue->frame_parms,
dlsch0,
dlsch0->harq_processes[harq_pid],
frame_rx,
nb_symb_sch,
nr_tti_rx,
harq_pid,
pdsch==PDSCH?1:0,
dlsch0->harq_processes[harq_pid]->TBS>256?1:0);
LOG_T(PHY,"UE_DLSCH_PARALLELISATION is defined, ret = %d\n", ret);
#else
ret = nr_dlsch_decoding(ue,
pdsch_vars->llr[0],
&ue->frame_parms,
dlsch0,
dlsch0->harq_processes[harq_pid],
frame_rx,
nb_symb_sch,
nr_tti_rx,
harq_pid,
pdsch==PDSCH?1:0,
dlsch0->harq_processes[harq_pid]->TBS>256?1:0);
LOG_T(PHY,"UE_DLSCH_PARALLELISATION is NOT defined, ret = %d\n", ret);
//printf("start cW0 dlsch decoding\n");
#endif
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]]);
#if DISABLE_LOG_X
printf(" --> Unscrambling for CW0 %5.3f\n",
(ue->dlsch_unscrambling_stats.p_time)/(cpuf*1000.0));
printf("AbsSubframe %d.%d --> LDPC Decoding for CW0 %5.3f\n",
frame_rx%1024, nr_tti_rx,(ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]].p_time)/(cpuf*1000.0));
#else
LOG_I(PHY, " --> Unscrambling for CW0 %5.3f\n",
(ue->dlsch_unscrambling_stats.p_time)/(cpuf*1000.0));
LOG_I(PHY, "AbsSubframe %d.%d --> LDPC Decoding for CW0 %5.3f\n",
frame_rx%1024, nr_tti_rx,(ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]].p_time)/(cpuf*1000.0));
#endif
#endif
if(is_cw1_active)
{
// start ldpc decode for CW 1
dlsch1->harq_processes[harq_pid]->G = nr_get_G(dlsch1->harq_processes[harq_pid]->nb_rb,
nb_symb_sch,
nb_re_dmrs,
length_dmrs,
dlsch1->harq_processes[harq_pid]->Qm,
dlsch1->harq_processes[harq_pid]->Nl);
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_unscrambling_stats);
#endif
nr_dlsch_unscrambling(pdsch_vars->llr[1],
dlsch1->harq_processes[harq_pid]->G,
0,
ue->frame_parms.Nid_cell,
dlsch1->rnti);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_unscrambling_stats);
#endif
#if 0
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> nb_rb %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->harq_processes[harq_pid]->nb_rb);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> rb_alloc_even %x \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->harq_processes[harq_pid]->rb_alloc_even);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> Qm %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->harq_processes[harq_pid]->Qm);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> Nl %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->harq_processes[harq_pid]->Nl);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> G %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->harq_processes[harq_pid]->G);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> Kmimo %d \n", frame_rx, nr_tti_rx, harq_pid, dlsch1->Kmimo);
LOG_I(PHY,"start ldpc decode for CW 1 for AbsSubframe %d.%d / %d --> Pdcch Sym %d \n", frame_rx, nr_tti_rx, harq_pid, ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][eNB_id]->num_pdcch_symbols);
#endif
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]]);
#endif
#ifdef UE_DLSCH_PARALLELISATION
ret1 = nr_dlsch_decoding_mthread(ue,
proc,
eNB_id,
pdsch_vars->llr[1],
&ue->frame_parms,
dlsch1,
dlsch1->harq_processes[harq_pid],
frame_rx,
nb_symb_sch,
nr_tti_rx,
harq_pid,
pdsch==PDSCH?1:0,
dlsch1->harq_processes[harq_pid]->TBS>256?1:0);
LOG_T(PHY,"UE_DLSCH_PARALLELISATION is defined, ret1 = %d\n", ret1);
#else
ret1 = nr_dlsch_decoding(ue,
pdsch_vars->llr[1],
&ue->frame_parms,
dlsch1,
dlsch1->harq_processes[harq_pid],
frame_rx,
nb_symb_sch,
nr_tti_rx,
harq_pid,
pdsch==PDSCH?1:0,//proc->decoder_switch,
dlsch1->harq_processes[harq_pid]->TBS>256?1:0);
LOG_T(PHY,"UE_DLSCH_PARALLELISATION is NOT defined, ret1 = %d\n", ret1);
printf("start cw1 dlsch decoding\n");
#endif
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]]);
#if DISABLE_LOG_X
printf(" --> Unscrambling for CW1 %5.3f\n",
(ue->dlsch_unscrambling_stats.p_time)/(cpuf*1000.0));
printf("AbsSubframe %d.%d --> ldpc Decoding for CW1 %5.3f\n",
frame_rx%1024, nr_tti_rx,(ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]].p_time)/(cpuf*1000.0));
#else
LOG_D(PHY, " --> Unscrambling for CW1 %5.3f\n",
(ue->dlsch_unscrambling_stats.p_time)/(cpuf*1000.0));
LOG_D(PHY, "AbsSubframe %d.%d --> ldpc Decoding for CW1 %5.3f\n",
frame_rx%1024, nr_tti_rx,(ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]].p_time)/(cpuf*1000.0));
#endif
#endif
LOG_I(PHY,"AbsSubframe %d.%d --> ldpc Decoding for CW1 %5.3f\n",
frame_rx%1024, nr_tti_rx,(ue->dlsch_decoding_stats[ue->current_thread_id[nr_tti_rx]].p_time)/(cpuf*1000.0));
LOG_D(PHY, "harq_pid: %d, TBS expected dlsch1: %d \n", harq_pid, dlsch1->harq_processes[harq_pid]->TBS);
}
LOG_D(PHY," ------ end ldpc decoder for AbsSubframe %d.%d ------ \n", frame_rx, nr_tti_rx);
LOG_D(PHY, "harq_pid: %d, TBS expected dlsch0: %d \n",harq_pid, dlsch0->harq_processes[harq_pid]->TBS);
if(ret<dlsch0->max_ldpc_iterations+1){
// fill dl_indication message
dl_indication.module_id = ue->Mod_id;
dl_indication.cc_id = ue->CC_id;
dl_indication.gNB_index = eNB_id;
dl_indication.frame = frame_rx;
dl_indication.slot = nr_tti_rx;
dl_indication.rx_ind = &rx_ind; // hang on rx_ind instance
dl_indication.proc=proc;
//dl_indication.rx_ind->number_pdus
switch (pdsch) {
case RA_PDSCH:
rx_ind.rx_indication_body[0].pdu_type = FAPI_NR_RX_PDU_TYPE_RAR;
break;
case PDSCH:
rx_ind.rx_indication_body[0].pdu_type = FAPI_NR_RX_PDU_TYPE_DLSCH;
break;
default:
break;
}
rx_ind.rx_indication_body[0].pdsch_pdu.pdu = dlsch0->harq_processes[harq_pid]->b;
rx_ind.rx_indication_body[0].pdsch_pdu.pdu_length = dlsch0->harq_processes[harq_pid]->TBS>>3;
LOG_D(PHY, "PDU length in bits: %d, in bytes: %d \n", dlsch0->harq_processes[harq_pid]->TBS, rx_ind.rx_indication_body[0].pdsch_pdu.pdu_length);
rx_ind.number_pdus = 1;
//ue->dl_indication.rx_ind = &dlsch1->harq_processes[harq_pid]->b; //no data, only dci for now
dl_indication.dci_ind = NULL; //&ue->dci_ind;
// send to mac
if (ue->if_inst && ue->if_inst->dl_indication)
ue->if_inst->dl_indication(&dl_indication, ul_time_alignment);
}
// TODO CRC check for CW0
// Check CRC for CW 0
/*if (ret == (1+dlsch0->max_turbo_iterations)) {
*dlsch_errors=*dlsch_errors+1;
if(dlsch0->rnti != 0xffff){
LOG_D(PHY,"[UE %d][PDSCH %x/%d] AbsSubframe %d.%d : DLSCH CW0 in error (rv %d,round %d, mcs %d,TBS %d)\n",
ue->Mod_id,dlsch0->rnti,
harq_pid,frame_rx,subframe_rx,
dlsch0->harq_processes[harq_pid]->rvidx,
dlsch0->harq_processes[harq_pid]->round,
dlsch0->harq_processes[harq_pid]->mcs,
dlsch0->harq_processes[harq_pid]->TBS);
}
} else {
if(dlsch0->rnti != 0xffff){
LOG_D(PHY,"[UE %d][PDSCH %x/%d] AbsSubframe %d.%d : Received DLSCH CW0 (rv %d,round %d, mcs %d,TBS %d)\n",
ue->Mod_id,dlsch0->rnti,
harq_pid,frame_rx,subframe_rx,
dlsch0->harq_processes[harq_pid]->rvidx,
dlsch0->harq_processes[harq_pid]->round,
dlsch0->harq_processes[harq_pid]->mcs,
dlsch0->harq_processes[harq_pid]->TBS);
}
if ( LOG_DEBUGFLAG(DEBUG_UE_PHYPROC)){
int j;
LOG_D(PHY,"dlsch harq_pid %d (rx): \n",dlsch0->current_harq_pid);
for (j=0; j<dlsch0->harq_processes[dlsch0->current_harq_pid]->TBS>>3; j++)
LOG_T(PHY,"%x.",dlsch0->harq_processes[dlsch0->current_harq_pid]->b[j]);
LOG_T(PHY,"\n");
}*/
if (ue->mac_enabled == 1) {
// scale the 16 factor in N_TA calculation in 38.213 section 4.2 according to the used FFT size
switch (ue->frame_parms.N_RB_DL) {
case 32: bw_scaling = 4; break;
case 66: bw_scaling = 8; break;
case 106: bw_scaling = 16; break;
case 217: bw_scaling = 32; break;
case 245: bw_scaling = 32; break;
case 273: bw_scaling = 32; break;
default: abort();
}
/* Time Alignment procedure
// - UE processing capability 1
// - Setting the TA update to be applied after the reception of the TA command
// - Timing adjustment computed according to TS 38.213 section 4.2
// - Durations of N1 and N2 symbols corresponding to PDSCH and PUSCH are
// computed according to sections 5.3 and 6.4 of TS 38.214 */
factor_mu = 1 << numerology;
N_TA_max = 3846 * bw_scaling / factor_mu;
/* PDSCH decoding time N_1 for processing capability 1 */
if (ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == pdsch_dmrs_pos0)
N_1 = pdsch_N_1_capability_1[numerology][1];
else if (ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == pdsch_dmrs_pos1 || ue->dmrs_DownlinkConfig.pdsch_dmrs_AdditionalPosition == 2) // TODO set to pdsch_dmrs_pos2 when available
N_1 = pdsch_N_1_capability_1[numerology][2];
else
N_1 = pdsch_N_1_capability_1[numerology][3];
/* PUSCH preapration time N_2 for processing capability 1 */
N_2 = pusch_N_2_timing_capability_1[numerology][1];
mapping_type_dl = ue->PDSCH_Config.pdsch_TimeDomainResourceAllocation[0]->mappingType;
mapping_type_ul = ue->pusch_config.pusch_TimeDomainResourceAllocation[0]->mappingType;
/* d_1_1 depending on the number of PDSCH symbols allocated */
d = 0; // TODO number of overlapping symbols of the scheduling PDCCH and the scheduled PDSCH
if (mapping_type_dl == typeA)
if (nb_symb_sch + start_symbol < 7)
d_1_1 = 7 - (nb_symb_sch + start_symbol);
else
d_1_1 = 0;
else // mapping type B
switch (nb_symb_sch){
case 7: d_1_1 = 0; break;
case 4: d_1_1 = 3; break;
case 2: d_1_1 = 3 + d; break;
default: break;
}
/* d_2_1 */
if (mapping_type_ul == typeB && start_symbol != 0)
d_2_1 = 0;
else
d_2_1 = 1;
/* N_t_1 time duration in msec of N_1 symbols corresponding to a PDSCH reception time
// N_t_2 time duration in msec of N_2 symbols corresponding to a PUSCH preparation time */
N_t_1 = (N_1 + d_1_1) * (ofdm_symbol_size + nb_prefix_samples) / factor_mu;
N_t_2 = (N_2 + d_2_1) * (ofdm_symbol_size + nb_prefix_samples) / factor_mu;
if (N_t_2 < d_2_2) N_t_2 = d_2_2;
/* Time alignment procedure */
// N_t_1 + N_t_2 + N_TA_max is in unit of Ts, therefore must be converted to Tc
// N_t_1 + N_t_2 + N_TA_max must be in msec
tc_factor = 64 * 0.509 * 10e-7;
ul_tx_timing_adjustment = 1 + ceil(slots_per_subframe*((N_t_1 + N_t_2 + N_TA_max)*tc_factor + 0.5)/t_subframe);
if (ul_time_alignment->apply_ta == 1){
ul_time_alignment->ta_slot = (nr_tti_rx + ul_tx_timing_adjustment) % slots_per_frame;
if (nr_tti_rx + ul_tx_timing_adjustment > slots_per_frame){
ul_time_alignment->ta_frame = (frame_rx + 1) % 1024;
} else {
ul_time_alignment->ta_frame = frame_rx;
}
// reset TA flag
ul_time_alignment->apply_ta = 0;
LOG_D(PHY,"Frame %d slot %d -- Starting UL time alignment procedures. TA update will be applied at frame %d slot %d\n", frame_rx, nr_tti_rx, ul_time_alignment->ta_frame, ul_time_alignment->ta_slot);
}
}
/*ue->total_TBS[eNB_id] = ue->total_TBS[eNB_id] + dlsch0->harq_processes[dlsch0->current_harq_pid]->TBS;
ue->total_received_bits[eNB_id] = ue->total_TBS[eNB_id] + dlsch0->harq_processes[dlsch0->current_harq_pid]->TBS;
}*/
// TODO CRC check for CW1
}
}
/*!
* \brief This is the UE synchronize thread.
* It performs band scanning and synchonization.
* \param arg is a pointer to a \ref PHY_VARS_NR_UE structure.
* \returns a pointer to an int. The storage is not on the heap and must not be freed.
*/
#ifdef UE_SLOT_PARALLELISATION
#define FIFO_PRIORITY 40
void *UE_thread_slot1_dl_processing(void *arg) {
static __thread int UE_dl_slot1_processing_retval;
struct rx_tx_thread_data *rtd = arg;
UE_nr_rxtx_proc_t *proc = rtd->proc;
PHY_VARS_NR_UE *ue = rtd->UE;
int frame_rx;
uint8_t nr_tti_rx;
uint8_t pilot0;
uint8_t pilot1;
uint8_t slot1;
uint8_t next_nr_tti_rx;
uint8_t next_subframe_slot0;
proc->instance_cnt_slot1_dl_processing=-1;
proc->nr_tti_rx=proc->sub_frame_start;
char threadname[256];
sprintf(threadname,"UE_thread_slot1_dl_processing_%d", proc->sub_frame_start);
cpu_set_t cpuset;
CPU_ZERO(&cpuset);
if ( (proc->sub_frame_start+1)%RX_NB_TH == 0 && threads.slot1_proc_one != -1 )
CPU_SET(threads.slot1_proc_one, &cpuset);
if ( (proc->sub_frame_start+1)%RX_NB_TH == 1 && threads.slot1_proc_two != -1 )
CPU_SET(threads.slot1_proc_two, &cpuset);
if ( (proc->sub_frame_start+1)%RX_NB_TH == 2 && threads.slot1_proc_three != -1 )
CPU_SET(threads.slot1_proc_three, &cpuset);
init_thread(900000,1000000 , FIFO_PRIORITY-1, &cpuset,
threadname);
while (!oai_exit) {
if (pthread_mutex_lock(&proc->mutex_slot1_dl_processing) != 0) {
LOG_E( PHY, "[SCHED][UE] error locking mutex for UE slot1 dl processing\n" );
exit_fun("nothing to add");
}
while (proc->instance_cnt_slot1_dl_processing < 0) {
// most of the time, the thread is waiting here
pthread_cond_wait( &proc->cond_slot1_dl_processing, &proc->mutex_slot1_dl_processing );
}
if (pthread_mutex_unlock(&proc->mutex_slot1_dl_processing) != 0) {
LOG_E( PHY, "[SCHED][UE] error unlocking mutex for UE slot1 dl processing \n" );
exit_fun("nothing to add");
}
/*for(int th_idx=0; th_idx< RX_NB_TH; th_idx++)
{
frame_rx = ue->proc.proc_rxtx[0].frame_rx;
nr_tti_rx = ue->proc.proc_rxtx[0].nr_tti_rx;
printf("AbsSubframe %d.%d execute dl slot1 processing \n", frame_rx, nr_tti_rx);
}*/
frame_rx = proc->frame_rx;
nr_tti_rx = proc->nr_tti_rx;
next_nr_tti_rx = (1+nr_tti_rx)%10;
next_subframe_slot0 = next_nr_tti_rx<<1;
slot1 = (nr_tti_rx<<1) + 1;
pilot0 = 0;
//printf("AbsSubframe %d.%d execute dl slot1 processing \n", frame_rx, nr_tti_rx);
if (ue->frame_parms.Ncp == 0) { // normal prefix
pilot1 = 4;
} else { // extended prefix
pilot1 = 3;
}
/**** Slot1 FE Processing ****/
#if UE_TIMING_TRACE
start_meas(&ue->ue_front_end_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1]);
#endif
// I- start dl slot1 processing
// do first symbol of next downlink nr_tti_rx for channel estimation
/*
// 1- perform FFT for pilot ofdm symbols first (ofdmSym0 next nr_tti_rx ofdmSym11)
if (nr_subframe_select(&ue->frame_parms,next_nr_tti_rx) != SF_UL)
{
front_end_fft(ue,
pilot0,
next_subframe_slot0,
0,
0);
}
front_end_fft(ue,
pilot1,
slot1,
0,
0);
*/
// 1- perform FFT
for (int l=1; l<ue->frame_parms.symbols_per_slot>>1; l++)
{
//if( (l != pilot0) && (l != pilot1))
{
#if UE_TIMING_TRACE
start_meas(&ue->ofdm_demod_stats);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SLOT_FEP, VCD_FUNCTION_IN);
//printf("AbsSubframe %d.%d FFT slot %d, symbol %d\n", frame_rx,nr_tti_rx,slot1,l);
front_end_fft(ue,
l,
slot1,
0,
0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SLOT_FEP, VCD_FUNCTION_OUT);
#if UE_TIMING_TRACE
stop_meas(&ue->ofdm_demod_stats);
#endif
}
} // for l=1..l2
if (nr_subframe_select(&ue->frame_parms,next_nr_tti_rx) != SF_UL)
{
//printf("AbsSubframe %d.%d FFT slot %d, symbol %d\n", frame_rx,nr_tti_rx,next_subframe_slot0,pilot0);
front_end_fft(ue,
pilot0,
next_subframe_slot0,
0,
0);
}
// 2- perform Channel Estimation for slot1
for (int l=1; l<ue->frame_parms.symbols_per_slot>>1; l++)
{
if(l == pilot1)
{
//wait until channel estimation for pilot0/slot1 is available
uint32_t wait = 0;
while(proc->chan_est_pilot0_slot1_available == 0)
{
usleep(1);
wait++;
}
//printf("[slot1 dl processing] ChanEst symbol %d slot %d wait%d\n",l,slot1,wait);
}
//printf("AbsSubframe %d.%d ChanEst slot %d, symbol %d\n", frame_rx,nr_tti_rx,slot1,l);
front_end_chanEst(ue,
l,
slot1,
0);
ue_measurement_procedures(l-1,ue,proc,0,1+(nr_tti_rx<<1),0,ue->mode);
}
//printf("AbsSubframe %d.%d ChanEst slot %d, symbol %d\n", frame_rx,nr_tti_rx,next_subframe_slot0,pilot0);
front_end_chanEst(ue,
pilot0,
next_subframe_slot0,
0);
if ( (nr_tti_rx == 0) && (ue->decode_MIB == 1))
{
ue_pbch_procedures(0,ue,proc,0);
}
proc->chan_est_slot1_available = 1;
//printf("Set available slot 1channelEst to 1 AbsSubframe %d.%d \n",frame_rx,nr_tti_rx);
//printf(" [slot1 dl processing] ==> FFT/CHanEst Done for AbsSubframe %d.%d \n", proc->frame_rx, proc->nr_tti_rx);
//printf(" [slot1 dl processing] ==> Start LLR Comuptation slot1 for AbsSubframe %d.%d \n", proc->frame_rx, proc->nr_tti_rx);
#if UE_TIMING_TRACE
stop_meas(&ue->ue_front_end_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1]);
#if DISABLE_LOG_X
printf("[AbsSFN %d.%d] Slot1: FFT + Channel Estimate + Pdsch Proc Slot0 %5.2f \n",frame_rx,nr_tti_rx,ue->ue_front_end_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "[AbsSFN %d.%d] Slot1: FFT + Channel Estimate + Pdsch Proc Slot0 %5.2f \n",frame_rx,nr_tti_rx,ue->ue_front_end_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1].p_time/(cpuf*1000.0));
#endif
#endif
//wait until pdcch is decoded
uint32_t wait = 0;
while(proc->dci_slot0_available == 0)
{
usleep(1);
wait++;
}
//printf("[slot1 dl processing] AbsSubframe %d.%d LLR Computation Start wait DCI %d\n",frame_rx,nr_tti_rx,wait);
/**** Pdsch Procedure Slot1 ****/
// start slot1 thread for Pdsch Procedure (slot1)
// do procedures for C-RNTI
//printf("AbsSubframe %d.%d Pdsch Procedure (slot1)\n",frame_rx,nr_tti_rx);
#if UE_TIMING_TRACE
start_meas(&ue->pdsch_procedures_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1]);
#endif
// start slave thread for Pdsch Procedure (slot1)
// do procedures for C-RNTI
uint8_t eNB_id = 0;
if (ue->dlsch[ue->current_thread_id[nr_tti_rx]][eNB_id][0]->active == 1) {
//wait until first ofdm symbol is processed
//wait = 0;
//while(proc->first_symbol_available == 0)
//{
// usleep(1);
// wait++;
//}
//printf("[slot1 dl processing] AbsSubframe %d.%d LLR Computation Start wait First Ofdm Sym %d\n",frame_rx,nr_tti_rx,wait);
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_IN);
ue_pdsch_procedures(ue,
proc,
eNB_id,
PDSCH,
ue->dlsch[ue->current_thread_id[nr_tti_rx]][eNB_id][0],
NULL,
(ue->frame_parms.symbols_per_slot>>1),
ue->frame_parms.symbols_per_slot-1,
abstraction_flag);
LOG_D(PHY," ------ end PDSCH ChannelComp/LLR slot 0: AbsSubframe %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
LOG_D(PHY," ------ --> PDSCH Turbo Decoder slot 0/1: AbsSubframe %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
}
// do procedures for SI-RNTI
if ((ue->dlsch_SI[eNB_id]) && (ue->dlsch_SI[eNB_id]->active == 1)) {
ue_pdsch_procedures(ue,
proc,
eNB_id,
SI_PDSCH,
ue->dlsch_SI[eNB_id],
NULL,
(ue->frame_parms.symbols_per_slot>>1),
ue->frame_parms.symbols_per_slot-1,
abstraction_flag);
}
// do procedures for P-RNTI
if ((ue->dlsch_p[eNB_id]) && (ue->dlsch_p[eNB_id]->active == 1)) {
ue_pdsch_procedures(ue,
proc,
eNB_id,
P_PDSCH,
ue->dlsch_p[eNB_id],
NULL,
(ue->frame_parms.symbols_per_slot>>1),
ue->frame_parms.symbols_per_slot-1,
abstraction_flag);
}
// do procedures for RA-RNTI
if ((ue->dlsch_ra[eNB_id]) && (ue->dlsch_ra[eNB_id]->active == 1)) {
ue_pdsch_procedures(ue,
proc,
eNB_id,
RA_PDSCH,
ue->dlsch_ra[eNB_id],
NULL,
(ue->frame_parms.symbols_per_slot>>1),
ue->frame_parms.symbols_per_slot-1,
abstraction_flag);
}
proc->llr_slot1_available=1;
//printf("Set available LLR slot1 to 1 AbsSubframe %d.%d \n",frame_rx,nr_tti_rx);
#if UE_TIMING_TRACE
stop_meas(&ue->pdsch_procedures_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1]);
#if DISABLE_LOG_X
printf("[AbsSFN %d.%d] Slot1: LLR Computation %5.2f \n",frame_rx,nr_tti_rx,ue->pdsch_procedures_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "[AbsSFN %d.%d] Slot1: LLR Computation %5.2f \n",frame_rx,nr_tti_rx,ue->pdsch_procedures_per_slot_stat[ue->current_thread_id[nr_tti_rx]][1].p_time/(cpuf*1000.0));
#endif
#endif
if (pthread_mutex_lock(&proc->mutex_slot1_dl_processing) != 0) {
LOG_E( PHY, "[SCHED][UE] error locking mutex for UE RXTX\n" );
exit_fun("noting to add");
}
proc->instance_cnt_slot1_dl_processing--;
if (pthread_mutex_unlock(&proc->mutex_slot1_dl_processing) != 0) {
LOG_E( PHY, "[SCHED][UE] error unlocking mutex for UE FEP Slo1\n" );
exit_fun("noting to add");
}
}
// thread finished
free(arg);
return &UE_dl_slot1_processing_retval;
}
#endif
int is_pbch_in_slot(fapi_nr_config_request_t *config, int frame, int slot, NR_DL_FRAME_PARMS *fp) {
int ssb_slot_decoded = (fp->ssb_index>>1) + ((fp->ssb_index>>4)<<1); //slot in which the decoded SSB can be found
if (config->ssb_table.ssb_period == 0) {
// check for pbch in corresponding slot each half frame
if (fp->half_frame_bit)
return(slot == ssb_slot_decoded || slot == ssb_slot_decoded - fp->slots_per_frame/2);
else
return(slot == ssb_slot_decoded || slot == ssb_slot_decoded + fp->slots_per_frame/2);
}
else {
// if the current frame is supposed to contain ssb
if (!(frame%(1<<(config->ssb_table.ssb_period-1))))
return(slot == ssb_slot_decoded);
else
return 0;
}
}
int phy_procedures_nrUE_RX(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t gNB_id,
runmode_t mode)
{
int frame_rx = proc->frame_rx;
int nr_tti_rx = proc->nr_tti_rx;
int slot_pbch;
NR_UE_PDCCH *pdcch_vars = ue->pdcch_vars[ue->current_thread_id[nr_tti_rx]][0];
fapi_nr_config_request_t *cfg = &ue->nrUE_config;
uint8_t nb_symb_pdcch = pdcch_vars->nb_search_space > 0 ? pdcch_vars->pdcch_config[0].coreset.duration : 0;
uint8_t dci_cnt = 0;
NR_DL_FRAME_PARMS *fp = &ue->frame_parms;
//NR_UE_MAC_INST_t *mac = get_mac_inst(0);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_RX, VCD_FUNCTION_IN);
LOG_D(PHY," ****** start RX-Chain for Frame.Slot %d.%d ****** \n", frame_rx%1024, nr_tti_rx);
/*
uint8_t next1_thread_id = ue->current_thread_id[nr_tti_rx]== (RX_NB_TH-1) ? 0:(ue->current_thread_id[nr_tti_rx]+1);
uint8_t next2_thread_id = next1_thread_id== (RX_NB_TH-1) ? 0:(next1_thread_id+1);
*/
int coreset_nb_rb=0;
int coreset_start_rb=0;
if (pdcch_vars->nb_search_space > 0)
get_coreset_rballoc(pdcch_vars->pdcch_config[0].coreset.frequency_domain_resource,&coreset_nb_rb,&coreset_start_rb);
slot_pbch = is_pbch_in_slot(cfg, frame_rx, nr_tti_rx, fp);
// looking for pbch only in slot where it is supposed to be
if ((ue->decode_MIB == 1) && slot_pbch)
{
LOG_D(PHY," ------ PBCH ChannelComp/LLR: frame.slot %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
for (int i=1; i<4; i++) {
nr_slot_fep(ue,
(ue->symbol_offset+i)%(fp->symbols_per_slot),
nr_tti_rx,
0,
0);
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_channel_estimation_stats);
#endif
nr_pbch_channel_estimation(ue,0,nr_tti_rx,(ue->symbol_offset+i)%(fp->symbols_per_slot),i-1,(fp->ssb_index)&7,fp->half_frame_bit);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_channel_estimation_stats);
#endif
}
//if (mac->csirc->reportQuantity.choice.ssb_Index_RSRP){
nr_ue_rsrp_measurements(ue,nr_tti_rx,0);
//}
nr_ue_pbch_procedures(gNB_id, ue, proc, 0);
if (ue->no_timing_correction==0) {
LOG_D(PHY,"start adjust sync slot = %d no timing %d\n", nr_tti_rx, ue->no_timing_correction);
nr_adjust_synch_ue(fp,
ue,
gNB_id,
frame_rx,
nr_tti_rx,
0,
16384);
}
}
#ifdef NR_PDCCH_SCHED
nr_gold_pdcch(ue, 0, 2);
LOG_D(PHY," ------ --> PDCCH ChannelComp/LLR Frame.slot %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
for (uint16_t l=0; l<nb_symb_pdcch; l++) {
#if UE_TIMING_TRACE
start_meas(&ue->ofdm_demod_stats);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SLOT_FEP, VCD_FUNCTION_IN);
nr_slot_fep(ue,
l,
nr_tti_rx,
0,
0);
// note: this only works if RBs for PDCCH are contigous!
LOG_D(PHY,"pdcch_channel_estimation: first_carrier_offset %d, BWPStart %d, coreset_start_rb %d\n",
fp->first_carrier_offset,pdcch_vars->pdcch_config[0].BWPStart,coreset_start_rb);
if (coreset_nb_rb > 0)
nr_pdcch_channel_estimation(ue,
0,
nr_tti_rx,
l,
fp->first_carrier_offset+(pdcch_vars->pdcch_config[0].BWPStart + coreset_start_rb)*12,
coreset_nb_rb);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_SLOT_FEP, VCD_FUNCTION_OUT);
#if UE_TIMING_TRACE
stop_meas(&ue->ofdm_demod_stats);
#endif
//printf("phy procedure pdcch start measurement l =%d\n",l);
//nr_ue_measurement_procedures(l,ue,proc,gNB_id,(nr_tti_rx),mode);
}
dci_cnt = nr_ue_pdcch_procedures(gNB_id, ue, proc);
if (dci_cnt > 0) {
LOG_D(PHY,"[UE %d] Frame %d, nr_tti_rx %d: found %d DCIs\n", ue->Mod_id, frame_rx, nr_tti_rx, dci_cnt);
NR_UE_DLSCH_t *dlsch = NULL;
if (ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->active == 1){
dlsch = ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0];
} else if (ue->dlsch_ra[0]->active == 1){
dlsch = ue->dlsch_ra[0];
}
if (dlsch) {
uint8_t harq_pid = dlsch->current_harq_pid;
NR_DL_UE_HARQ_t *dlsch0_harq = dlsch->harq_processes[harq_pid];
uint16_t nb_symb_sch = dlsch0_harq->nb_symbols;
uint16_t start_symb_sch = dlsch0_harq->start_symbol;
int symb_dmrs = -1;
LOG_D(PHY," ------ --> PDSCH ChannelComp/LLR Frame.slot %d.%d ------ \n", frame_rx%1024, nr_tti_rx);
//to update from pdsch config
for (int i=0;i<4;i++) if (((1<<i)&dlsch0_harq->dlDmrsSymbPos) > 0) {symb_dmrs=i;break;}
AssertFatal(symb_dmrs>=0,"no dmrs in 0..3\n");
LOG_D(PHY,"Initializing dmrs for symb %d DMRS mask %x\n",symb_dmrs,dlsch0_harq->dlDmrsSymbPos);
nr_gold_pdsch(ue,symb_dmrs,0, 1);
for (uint16_t m=start_symb_sch;m<(nb_symb_sch+start_symb_sch) ; m++){
nr_slot_fep(ue,
m, //to be updated from higher layer
nr_tti_rx,
0,
0);
}
}
} else {
LOG_D(PHY,"[UE %d] Frame %d, nr_tti_rx %d: No DCIs found\n", ue->Mod_id, frame_rx, nr_tti_rx);
}
#endif //NR_PDCCH_SCHED
#if UE_TIMING_TRACE
start_meas(&ue->generic_stat);
#endif
// do procedures for C-RNTI
int ret_pdsch = 0;
if (ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->active == 1) {
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_IN);
ret_pdsch = nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
PDSCH,
ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0],
NULL);
//printf("phy procedure pdsch start measurement\n");
nr_ue_measurement_procedures(2,ue,proc,gNB_id,nr_tti_rx,mode);
/*
write_output("rxF.m","rxF",&ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[nr_tti_rx]].rxdataF[0][0],fp->ofdm_symbol_size*14,1,1);
write_output("rxF_ch.m","rxFch",&ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->dl_ch_estimates[0][0],fp->ofdm_symbol_size*14,1,1);
write_output("rxF_ch_ext.m","rxFche",&ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->dl_ch_estimates_ext[0][2*50*12],50*12,1,1);
write_output("rxF_ext.m","rxFe",&ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->rxdataF_ext[0][0],50*12*14,1,1);
write_output("rxF_comp.m","rxFc",&ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->rxdataF_comp0[0][0],fp->N_RB_DL*12*14,1,1);
write_output("rxF_llr.m","rxFllr",ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][gNB_id]->llr[0],(nb_symb_sch-1)*50*12+50*6,1,0);
*/
//VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_OUT);
}
// do procedures for SI-RNTI
if ((ue->dlsch_SI[gNB_id]) && (ue->dlsch_SI[gNB_id]->active == 1)) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_SI, VCD_FUNCTION_IN);
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
SI_PDSCH,
ue->dlsch_SI[gNB_id],
NULL);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_SI, VCD_FUNCTION_OUT);
}
// do procedures for SI-RNTI
if ((ue->dlsch_p[gNB_id]) && (ue->dlsch_p[gNB_id]->active == 1)) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_P, VCD_FUNCTION_IN);
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
P_PDSCH,
ue->dlsch_p[gNB_id],
NULL);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_P, VCD_FUNCTION_OUT);
}
// do procedures for RA-RNTI
if ((ue->dlsch_ra[gNB_id]) && (ue->dlsch_ra[gNB_id]->active == 1)) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_RA, VCD_FUNCTION_IN);
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
RA_PDSCH,
ue->dlsch_ra[gNB_id],
NULL);
// #if UE_TIMING_TRACE
// start_meas(&ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]]);
// #endif
nr_ue_dlsch_procedures(ue,
proc,
gNB_id,
RA_PDSCH,
ue->dlsch_ra[gNB_id],
NULL,
&ue->dlsch_ra_errors[gNB_id],
mode);
// #if UE_TIMING_TRACE
// stop_meas(&ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]]);
#if DISABLE_LOG_X
printf("[SFN %d] Slot1: Pdsch Proc %5.2f\n", nr_tti_rx, ue->pdsch_procedures_stat[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
printf("[SFN %d] Slot0 Slot1: Dlsch Proc %5.2f\n", nr_tti_rx, ue->dlsch_procedures_stat[ue->current_thread_id[ nr_tti_rx]].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "[SFN %d] Slot1: Pdsch Proc %5.2f\n", nr_tti_rx, ue->pdsch_procedures_stat[ue->current_thread_id[ nr_tti_rx]].p_time/(cpuf*1000.0));
LOG_D(PHY, "[SFN %d] Slot0 Slot1: Dlsch Proc %5.2f\n", nr_tti_rx, ue->dlsch_procedures_stat[ue->current_thread_id[ nr_tti_rx]].p_time/(cpuf*1000.0));
#endif
// #endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC_RA, VCD_FUNCTION_OUT);
}
// do procedures for C-RNTI
if (ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->active == 1) {
LOG_D(PHY, "DLSCH data reception at nr_tti_rx: %d \n \n", nr_tti_rx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_IN);
#if UE_TIMING_TRACE
start_meas(&ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]]);
#endif
if (ret_pdsch >= 0)
nr_ue_dlsch_procedures(ue,
proc,
gNB_id,
PDSCH,
ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0],
ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][1],
&ue->dlsch_errors[gNB_id],
mode);
#if UE_TIMING_TRACE
stop_meas(&ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]]);
#if DISABLE_LOG_X
printf("[SFN %d] Slot1: Pdsch Proc %5.2f\n",nr_tti_rx,ue->pdsch_procedures_stat[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
printf("[SFN %d] Slot0 Slot1: Dlsch Proc %5.2f\n",nr_tti_rx,ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "[SFN %d] Slot1: Pdsch Proc %5.2f\n",nr_tti_rx,ue->pdsch_procedures_stat[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
LOG_D(PHY, "[SFN %d] Slot0 Slot1: Dlsch Proc %5.2f\n",nr_tti_rx,ue->dlsch_procedures_stat[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
#endif
#endif
// deactivate dlsch once dlsch proc is done
ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->active = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PDSCH_PROC, VCD_FUNCTION_OUT);
}
#if UE_TIMING_TRACE
start_meas(&ue->generic_stat);
#endif
#if 0
if(nr_tti_rx==5 && ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->harq_processes[ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->current_harq_pid]->nb_rb > 20){
//write_output("decoder_llr.m","decllr",dlsch_llr,G,1,0);
//write_output("llr.m","llr", &ue->pdsch_vars[gNB_id]->llr[0][0],(14*nb_rb*12*dlsch1_harq->Qm) - 4*(nb_rb*4*dlsch1_harq->Qm),1,0);
write_output("rxdataF0_current.m" , "rxdataF0", &ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[nr_tti_rx]].rxdataF[0][0],14*fp->ofdm_symbol_size,1,1);
//write_output("rxdataF0_previous.m" , "rxdataF0_prev_sss", &ue->common_vars.common_vars_rx_data_per_thread[next_thread_id].rxdataF[0][0],14*fp->ofdm_symbol_size,1,1);
//write_output("rxdataF0_previous.m" , "rxdataF0_prev", &ue->common_vars.common_vars_rx_data_per_thread[next_thread_id].rxdataF[0][0],14*fp->ofdm_symbol_size,1,1);
write_output("dl_ch_estimates.m", "dl_ch_estimates_sfn5", &ue->common_vars.common_vars_rx_data_per_thread[ue->current_thread_id[nr_tti_rx]].dl_ch_estimates[0][0][0],14*fp->ofdm_symbol_size,1,1);
write_output("dl_ch_estimates_ext.m", "dl_ch_estimatesExt_sfn5", &ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][0]->dl_ch_estimates_ext[0][0],14*fp->N_RB_DL*12,1,1);
write_output("rxdataF_comp00.m","rxdataF_comp00", &ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][0]->rxdataF_comp0[0][0],14*fp->N_RB_DL*12,1,1);
//write_output("magDLFirst.m", "magDLFirst", &phy_vars_ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][0]->dl_ch_mag0[0][0],14*fp->N_RB_DL*12,1,1);
//write_output("magDLSecond.m", "magDLSecond", &phy_vars_ue->pdsch_vars[ue->current_thread_id[nr_tti_rx]][0]->dl_ch_magb0[0][0],14*fp->N_RB_DL*12,1,1);
AssertFatal (0,"");
}
#endif
// do procedures for SI-RNTI
if ((ue->dlsch_SI[gNB_id]) && (ue->dlsch_SI[gNB_id]->active == 1)) {
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
SI_PDSCH,
ue->dlsch_SI[gNB_id],
NULL);
/*ue_dlsch_procedures(ue,
proc,
gNB_id,
SI_PDSCH,
ue->dlsch_SI[gNB_id],
NULL,
&ue->dlsch_SI_errors[gNB_id],
mode,
abstraction_flag);
ue->dlsch_SI[gNB_id]->active = 0;*/
}
// do procedures for P-RNTI
if ((ue->dlsch_p[gNB_id]) && (ue->dlsch_p[gNB_id]->active == 1)) {
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
P_PDSCH,
ue->dlsch_p[gNB_id],
NULL);
/*ue_dlsch_procedures(ue,
proc,
gNB_id,
P_PDSCH,
ue->dlsch_p[gNB_id],
NULL,
&ue->dlsch_p_errors[gNB_id],
mode,
abstraction_flag);*/
ue->dlsch_p[gNB_id]->active = 0;
}
// do procedures for RA-RNTI
if ((ue->dlsch_ra[gNB_id]) && (ue->dlsch_ra[gNB_id]->active == 1)) {
nr_ue_pdsch_procedures(ue,
proc,
gNB_id,
RA_PDSCH,
ue->dlsch_ra[gNB_id],
NULL);
/*ue_dlsch_procedures(ue,
proc,
gNB_id,
RA_PDSCH,
ue->dlsch_ra[gNB_id],
NULL,
&ue->dlsch_ra_errors[gNB_id],
mode,
abstraction_flag);*/
ue->dlsch_ra[gNB_id]->active = 0;
}
// duplicate harq structure
/*
uint8_t current_harq_pid = ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->current_harq_pid;
NR_DL_UE_HARQ_t *current_harq_processes = ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->harq_processes[current_harq_pid];
NR_DL_UE_HARQ_t *harq_processes_dest = ue->dlsch[next1_thread_id][gNB_id][0]->harq_processes[current_harq_pid];
NR_DL_UE_HARQ_t *harq_processes_dest1 = ue->dlsch[next2_thread_id][gNB_id][0]->harq_processes[current_harq_pid];
*/
/*nr_harq_status_t *current_harq_ack = &ue->dlsch[ue->current_thread_id[nr_tti_rx]][gNB_id][0]->harq_ack[nr_tti_rx];
nr_harq_status_t *harq_ack_dest = &ue->dlsch[next1_thread_id][gNB_id][0]->harq_ack[nr_tti_rx];
nr_harq_status_t *harq_ack_dest1 = &ue->dlsch[next2_thread_id][gNB_id][0]->harq_ack[nr_tti_rx];
*/
//copy_harq_proc_struct(harq_processes_dest, current_harq_processes);
//copy_ack_struct(harq_ack_dest, current_harq_ack);
//copy_harq_proc_struct(harq_processes_dest1, current_harq_processes);
//copy_ack_struct(harq_ack_dest1, current_harq_ack);
if (nr_tti_rx==9) {
if (frame_rx % 10 == 0) {
if ((ue->dlsch_received[gNB_id] - ue->dlsch_received_last[gNB_id]) != 0)
ue->dlsch_fer[gNB_id] = (100*(ue->dlsch_errors[gNB_id] - ue->dlsch_errors_last[gNB_id]))/(ue->dlsch_received[gNB_id] - ue->dlsch_received_last[gNB_id]);
ue->dlsch_errors_last[gNB_id] = ue->dlsch_errors[gNB_id];
ue->dlsch_received_last[gNB_id] = ue->dlsch_received[gNB_id];
}
ue->bitrate[gNB_id] = (ue->total_TBS[gNB_id] - ue->total_TBS_last[gNB_id])*100;
ue->total_TBS_last[gNB_id] = ue->total_TBS[gNB_id];
LOG_D(PHY,"[UE %d] Calculating bitrate Frame %d: total_TBS = %d, total_TBS_last = %d, bitrate %f kbits\n",
ue->Mod_id,frame_rx,ue->total_TBS[gNB_id],
ue->total_TBS_last[gNB_id],(float) ue->bitrate[gNB_id]/1000.0);
#if UE_AUTOTEST_TRACE
if ((frame_rx % 100 == 0)) {
LOG_I(PHY,"[UE %d] AUTOTEST Metric : UE_DLSCH_BITRATE = %5.2f kbps (frame = %d) \n", ue->Mod_id, (float) ue->bitrate[gNB_id]/1000.0, frame_rx);
}
#endif
}
#if UE_TIMING_TRACE
stop_meas(&ue->generic_stat);
printf("after tubo until end of Rx %5.2f \n",ue->generic_stat.p_time/(cpuf*1000.0));
#endif
#ifdef EMOS
phy_procedures_emos_UE_RX(ue,slot,gNB_id);
#endif
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_RX, VCD_FUNCTION_OUT);
#if UE_TIMING_TRACE
stop_meas(&ue->phy_proc_rx[ue->current_thread_id[nr_tti_rx]]);
#if DISABLE_LOG_X
printf("------FULL RX PROC [SFN %d]: %5.2f ------\n",nr_tti_rx,ue->phy_proc_rx[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
#else
LOG_D(PHY, "------FULL RX PROC [SFN %d]: %5.2f ------\n",nr_tti_rx,ue->phy_proc_rx[ue->current_thread_id[nr_tti_rx]].p_time/(cpuf*1000.0));
#endif
#endif
//#endif //pdsch
LOG_D(PHY," ****** end RX-Chain for AbsSubframe %d.%d ****** \n", frame_rx%1024, nr_tti_rx);
return (0);
}
uint8_t nr_is_cqi_TXOp(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t gNB_id)
{
int subframe = proc->subframe_tx;
int frame = proc->frame_tx;
CQI_REPORTPERIODIC *cqirep = &ue->cqi_report_config[gNB_id].CQI_ReportPeriodic;
//LOG_I(PHY,"[UE %d][CRNTI %x] AbsSubFrame %d.%d Checking for CQI TXOp (cqi_ConfigIndex %d) isCQIOp %d\n",
// ue->Mod_id,ue->pdcch_vars[gNB_id]->crnti,frame,subframe,
// cqirep->cqi_PMI_ConfigIndex,
// (((10*frame + subframe) % cqirep->Npd) == cqirep->N_OFFSET_CQI));
if (cqirep->cqi_PMI_ConfigIndex==-1)
return(0);
else if (((10*frame + subframe) % cqirep->Npd) == cqirep->N_OFFSET_CQI)
return(1);
else
return(0);
}
uint8_t nr_is_ri_TXOp(PHY_VARS_NR_UE *ue,
UE_nr_rxtx_proc_t *proc,
uint8_t gNB_id)
{
int subframe = proc->subframe_tx;
int frame = proc->frame_tx;
CQI_REPORTPERIODIC *cqirep = &ue->cqi_report_config[gNB_id].CQI_ReportPeriodic;
int log2Mri = cqirep->ri_ConfigIndex/161;
int N_OFFSET_RI = cqirep->ri_ConfigIndex % 161;
//LOG_I(PHY,"[UE %d][CRNTI %x] AbsSubFrame %d.%d Checking for RI TXOp (ri_ConfigIndex %d) isRIOp %d\n",
// ue->Mod_id,ue->pdcch_vars[gNB_id]->crnti,frame,subframe,
// cqirep->ri_ConfigIndex,
// (((10*frame + subframe + cqirep->N_OFFSET_CQI - N_OFFSET_RI) % (cqirep->Npd<<log2Mri)) == 0));
if (cqirep->ri_ConfigIndex==-1)
return(0);
else if (((10*frame + subframe + cqirep->N_OFFSET_CQI - N_OFFSET_RI) % (cqirep->Npd<<log2Mri)) == 0)
return(1);
else
return(0);
}
// WIP
// todo:
// - set tx_total_RE
// - power control as per 38.213 ch 7.4
void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t gNB_id, runmode_t runmode) {
int frame_tx = proc->frame_tx, nr_tti_tx = proc->nr_tti_tx, prach_power; // tx_amp
uint16_t /*preamble_tx = 50,*/ pathloss;
uint8_t mod_id = ue->Mod_id;
UE_MODE_t UE_mode = get_nrUE_mode(mod_id, ue->CC_id, gNB_id);
NR_PRACH_RESOURCES_t * prach_resources = ue->prach_resources[gNB_id];
uint8_t nr_prach = 0;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_IN);
if (ue->mac_enabled == 0){
// prach_resources->ra_PreambleIndex = preamble_tx;
prach_resources->ra_TDD_map_index = 0;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = 10;
prach_resources->ra_RNTI = 0x1234;
nr_prach = 1;
} else {
// ask L2 for RACH transport
if ((runmode != rx_calib_ue) && (runmode != rx_calib_ue_med) && (runmode != rx_calib_ue_byp) && (runmode != no_L2_connect) ) {
LOG_D(PHY, "Getting PRACH resources. Frame %d Slot %d \n", frame_tx, nr_tti_tx);
// flush Msg3 Buffer
if (prach_resources->Msg3 == NULL){
for(int i = 0; i<NUMBER_OF_CONNECTED_gNB_MAX; i++) {
ue->ulsch_Msg3_active[i] = 0;
}
}
nr_prach = nr_ue_get_rach(ue->prach_resources[gNB_id], &ue->prach_vars[0]->prach_pdu, mod_id, ue->CC_id, UE_mode, frame_tx, gNB_id, nr_tti_tx);
}
}
if (!prach_resources->init_msg1 && (frame_tx > ue->prach_resources[gNB_id]->sync_frame + 150)){
ue->prach_cnt = 0;
prach_resources->init_msg1 = 1;
}
if (ue->prach_resources[gNB_id] != NULL && nr_prach == 1 && prach_resources->init_msg1) {
pathloss = get_nr_PL(mod_id, ue->CC_id, gNB_id);
LOG_D(PHY,"runmode %d\n",runmode);
if ((ue->mac_enabled == 1) && (runmode != calib_prach_tx)) {
ue->tx_power_dBm[nr_tti_tx] = prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER + pathloss;
}
LOG_I(PHY,"[UE %d][RAPROC] Frame %d, nr_tti_tx %d : Generating PRACH, preamble %d, PL %d, P0_PRACH %d, TARGET_RECEIVED_POWER %d dBm, RA-RNTI %x\n",
ue->Mod_id,
frame_tx,
nr_tti_tx,
prach_resources->ra_PreambleIndex,
pathloss,
ue->tx_power_dBm[nr_tti_tx],
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER,
prach_resources->ra_RNTI);
//ue->tx_total_RE[nr_tti_tx] = 96; // todo
ue->prach_vars[gNB_id]->amp = AMP;
/* #if defined(EXMIMO) || defined(OAI_USRP) || defined(OAI_BLADERF) || defined(OAI_LMSSDR) || defined(OAI_ADRV9371_ZC706)
tx_amp = get_tx_amp_prach(ue->tx_power_dBm[nr_tti_tx], ue->tx_power_max_dBm, ue->frame_parms.N_RB_UL);
if (tx_amp != -1)
ue->prach_vars[gNB_id]->amp = tx_amp;
#else
ue->prach_vars[gNB_id]->amp = AMP;
#endif */
if ((runmode == calib_prach_tx) && (((proc->frame_tx&0xfffe)%100)==0))
LOG_D(PHY,"[UE %d][RAPROC] Frame %d, nr_tti_tx %d : PRACH TX power %d dBm, amp %d\n", ue->Mod_id,
proc->frame_rx,
proc->nr_tti_tx,
ue->tx_power_dBm[nr_tti_tx],
ue->prach_vars[gNB_id]->amp);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GENERATE_PRACH, VCD_FUNCTION_IN);
prach_power = generate_nr_prach(ue, gNB_id, nr_tti_tx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_UE_GENERATE_PRACH, VCD_FUNCTION_OUT);
LOG_D(PHY,"[UE %d][RAPROC] PRACH PL %d dB, power %d dBm, digital power %d dB (amp %d)\n",
ue->Mod_id,
pathloss,
ue->tx_power_dBm[nr_tti_tx],
dB_fixed(prach_power),
ue->prach_vars[gNB_id]->amp);
if (ue->mac_enabled == 1)
nr_Msg1_transmitted(ue->Mod_id, ue->CC_id, frame_tx, gNB_id);
LOG_I(PHY,"[UE %d][RAPROC] Frame %d, nr_tti_tx %d: Generated PRACH Msg1 (gNB %d) preamble index %d for UL, TX power %d dBm (PL %d dB) \n",
ue->Mod_id,
frame_tx,
nr_tti_tx,
gNB_id,
prach_resources->ra_PreambleIndex,
ue->tx_power_dBm[nr_tti_tx],
pathloss);
LOG_D(PHY,"[UE %d] frame %d nr_tti_tx %d : prach_cnt %d\n", ue->Mod_id, frame_tx, nr_tti_tx, ue->prach_cnt);
ue->prach_cnt++;
if (ue->prach_cnt == 3)
ue->prach_cnt = 0;
} else if (nr_prach == 2) {
nr_ra_succeeded(mod_id, ue->CC_id, gNB_id);
}
// if we're calibrating the PRACH kill the pointer to its resources so that the RA protocol doesn't continue
if (runmode == calib_prach_tx)
ue->prach_resources[gNB_id] = NULL;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_UE_TX_PRACH, VCD_FUNCTION_OUT);
}
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