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Merge remote-tracking branch 'origin/NR_UE_improve_RA' into integration_2022_wk46

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This commit is contained in:
Robert Schmidt
2022-11-17 18:31:45 +01:00
parent 0cacf29dbb 4e80dc4a20
commit f54f1fd61d
32 changed files with 302 additions and 765 deletions
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openair1/PHY/NR_TRANSPORT/nr_prach.c
+17 -18
View File
@@ -413,14 +413,13 @@ void rx_nr_prach_ru(RU_t *ru,
}
void rx_nr_prach(PHY_VARS_gNB *gNB,
nfapi_nr_prach_pdu_t *prach_pdu,
int prachOccasion,
int frame,
int subframe,
uint16_t *max_preamble,
uint16_t *max_preamble_energy,
uint16_t *max_preamble_delay
)
nfapi_nr_prach_pdu_t *prach_pdu,
int prachOccasion,
int frame,
int slot,
uint16_t *max_preamble,
uint16_t *max_preamble_energy,
uint16_t *max_preamble_delay)
{
AssertFatal(gNB!=NULL,"Can only be called from gNB\n");
@@ -481,7 +480,7 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
prach_ifft = gNB->prach_vars.prach_ifft;
prachF = gNB->prach_vars.prachF;
if (LOG_DEBUGFLAG(PRACH)){
if ((frame&1023) < 20) LOG_D(PHY,"PRACH (gNB) : running rx_prach for subframe %d, msg1_frequencystart %d, rootSequenceIndex %d\n", subframe,msg1_frequencystart,rootSequenceIndex);
if ((frame&1023) < 20) LOG_D(PHY,"PRACH (gNB) : running rx_prach for slot %d, msg1_frequencystart %d, rootSequenceIndex %d\n", slot, msg1_frequencystart, rootSequenceIndex);
}
start_meas(&gNB->rx_prach);
@@ -506,7 +505,7 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
if (LOG_DEBUGFLAG(PRACH)){
int en = dB_fixed(signal_energy((int32_t*)&rxsigF[0][0],(N_ZC==839) ? 840: 140));
if (en>60) LOG_D(PHY,"frame %d, subframe %d : Trying preamble %d \n",frame,subframe,preamble_index);
if (en>60) LOG_D(PHY,"frame %d, slot %d : Trying preamble %d \n",frame,slot,preamble_index);
}
if (restricted_set == 0) {
// This is the relative offset in the root sequence table (5.7.2-4 from 36.211) for the given preamble index
@@ -585,8 +584,8 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
// Compute DFT of RX signal (conjugate input, results in conjugate output) for each new rootSequenceIndex
if (LOG_DEBUGFLAG(PRACH)) {
int en = dB_fixed(signal_energy((int32_t*)&rxsigF[0][0],840));
if (en>60) LOG_I(PHY,"frame %d, subframe %d : preamble index %d, NCS %d, N_ZC/NCS %d: offset %d, preamble shift %d , en %d)\n",
frame,subframe,preamble_index,NCS,N_ZC/NCS,preamble_offset,preamble_shift,en);
if (en>60) LOG_D(PHY,"frame %d, slot %d : preamble index %d, NCS %d, N_ZC/NCS %d: offset %d, preamble shift %d , en %d)\n",
frame,slot,preamble_index,NCS,N_ZC/NCS,preamble_offset,preamble_shift,en);
}
LOG_D(PHY,"PRACH RX preamble_index %d, preamble_offset %d\n",preamble_index,preamble_offset);
@@ -605,8 +604,8 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
memset(prachF, 0, sizeof(int16_t)*2*1024 );
if (LOG_DUMPFLAG(PRACH)) {
LOG_M("prach_rxF0.m","prach_rxF0",rxsigF[0],N_ZC,1,1);
LOG_M("prach_rxF1.m","prach_rxF1",rxsigF[1],6144,1,1);
LOG_M("prach_rxF0.m","prach_rxF0",rxsigF[0],N_ZC,1,1);
LOG_M("prach_rxF1.m","prach_rxF1",rxsigF[1],6144,1,1);
}
for (aa=0;aa<nb_rx; aa++) {
@@ -659,10 +658,10 @@ void rx_nr_prach(PHY_VARS_gNB *gNB,
lev = (int32_t)prach_ifft[(preamble_shift2+i)];
levdB = dB_fixed_times10(lev);
if (levdB>*max_preamble_energy) {
LOG_D(PHY,"preamble_index %d, delay %d en %d dB > %d dB\n",preamble_index,i,levdB,*max_preamble_energy);
*max_preamble_energy = levdB;
*max_preamble_delay = i; // Note: This has to be normalized to the 30.72 Ms/s sampling rate
*max_preamble = preamble_index;
LOG_D(PHY,"preamble_index %d, delay %d en %d dB > %d dB\n",preamble_index,i,levdB,*max_preamble_energy);
*max_preamble_energy = levdB;
*max_preamble_delay = i; // Note: This has to be normalized to the 30.72 Ms/s sampling rate
*max_preamble = preamble_index;
}
}
}// preamble_index
openair1/PHY/NR_UE_ESTIMATION/nr_adjust_synch_ue.c
-2
View File
@@ -110,8 +110,6 @@ void nr_adjust_synch_ue(NR_DL_FRAME_PARMS *frame_parms,
//mac_resynch();
//dl_phy_sync_success(ue->Mod_id,frame,0,1);//ue->common_vars.eNb_id);
ue->UE_mode[0] = PRACH;
ue->prach_resources[gNB_id]->sync_frame = frame;
ue->prach_resources[gNB_id]->init_msg1 = 0;
} else {
ue->UE_mode[0] = PUSCH;
}
openair1/PHY/NR_UE_ESTIMATION/nr_estimation.h
-2
View File
@@ -123,8 +123,6 @@ void phy_adjust_gain_nr(PHY_VARS_NR_UE *ue,
uint32_t rx_power_fil_dB,
uint8_t gNB_id);
int16_t get_nr_PL(uint8_t Mod_id, uint8_t CC_id, uint8_t gNB_index);
void nr_pdsch_ptrs_processing(PHY_VARS_NR_UE *ue,
NR_UE_PDSCH **pdsch_vars,
NR_DL_FRAME_PARMS *frame_parms,
openair1/PHY/NR_UE_ESTIMATION/nr_ue_measurements.c
-36
View File
@@ -46,42 +46,6 @@
//#define DEBUG_MEAS_UE
//#define DEBUG_RANK_EST
// Returns the pathloss in dB for the active UL BWP on the selected carrier based on the DL RS associated with the PRACH transmission
// computation according to clause 7.4 (Physical random access channel) of 3GPP TS 38.213 version 16.3.0 Release 16
// Assumptions:
// - PRACH transmission from a UE is not in response to a detection of a PDCCH order by the UE
// Measurement units:
// - referenceSignalPower: dBm/RE (average EPRE of the resources elements that carry secondary synchronization signals in dBm)
int16_t get_nr_PL(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];
int16_t pathloss;
if (get_softmodem_params()->do_ra){
long referenceSignalPower = ue->nrUE_config.ssb_config.ss_pbch_power;
pathloss = (int16_t)(referenceSignalPower - ue->measurements.rsrp_dBm[gNB_index]);
LOG_D(MAC, "In %s: pathloss %d dB, UE RX total gain %d dB, referenceSignalPower %ld dBm/RE (%f mW), RSRP %d dBm (%f mW)\n",
__FUNCTION__,
pathloss,
ue->rx_total_gain_dB,
referenceSignalPower,
pow(10, referenceSignalPower/10),
ue->measurements.rsrp_dBm[gNB_index],
pow(10, ue->measurements.rsrp_dBm[gNB_index]/10));
} else {
pathloss = ((int16_t)(((10*ue->rx_total_gain_dB) - dB_fixed_times10(ue->measurements.rsrp[gNB_index]))/10));
}
return pathloss;
}
uint32_t get_nr_rx_total_gain_dB (module_id_t Mod_id,uint8_t CC_id)
{
openair1/PHY/NR_UE_TRANSPORT/nr_prach.c
+3 -4
View File
@@ -61,7 +61,6 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, int frame, uint8_t
NR_DL_FRAME_PARMS *fp=&ue->frame_parms;
fapi_nr_config_request_t *nrUE_config = &ue->nrUE_config;
NR_PRACH_RESOURCES_t *prach_resources = ue->prach_resources[gNB_id];
fapi_nr_ul_config_prach_pdu *prach_pdu = &ue->prach_vars[gNB_id]->prach_pdu;
uint8_t Mod_id, fd_occasion, preamble_index, restricted_set, not_found;
@@ -73,7 +72,6 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, int frame, uint8_t
int16_t Ncp = 0, amp, *prach, *prach2, *prachF, *Xu;
int32_t Xu_re, Xu_im;
int prach_start, prach_sequence_length, i, prach_len, dftlen, mu, kbar, K, n_ra_prb, k, prachStartSymbol, sample_offset_slot;
//int restricted_Type;
fd_occasion = 0;
prach_len = 0;
@@ -91,12 +89,13 @@ int32_t generate_nr_prach(PHY_VARS_NR_UE *ue, uint8_t gNB_id, int frame, uint8_t
n_ra_prb = nrUE_config->prach_config.num_prach_fd_occasions_list[fd_occasion].k1,//prach_pdu->freq_msg1;
NCS = prach_pdu->num_cs;
prach_fmt_id = prach_pdu->prach_format;
preamble_index = prach_resources->ra_PreambleIndex;
preamble_index = prach_pdu->ra_PreambleIndex;
kbar = 1;
K = 24;
k = 12*n_ra_prb - 6*fp->N_RB_UL;
prachStartSymbol = prach_pdu->prach_start_symbol;
//restricted_Type = 0;
LOG_D(PHY,"Generate NR PRACH %d.%d\n", frame, slot);
compute_nr_prach_seq(nrUE_config->prach_config.prach_sequence_length,
nrUE_config->prach_config.num_prach_fd_occasions_list[fd_occasion].num_root_sequences,
openair1/PHY/defs_nr_UE.h
-2
View File
@@ -590,11 +590,9 @@ typedef struct {
// when off, defaults to frequency domain interpolation
int chest_freq;
int chest_time;
int generate_ul_signal[NUMBER_OF_CONNECTED_gNB_MAX];
UE_NR_SCAN_INFO_t scan_info[NB_BANDS_MAX];
NR_PRACH_RESOURCES_t *prach_resources[NUMBER_OF_CONNECTED_gNB_MAX];
/// \brief ?.
/// - first index: gNB [0..NUMBER_OF_CONNECTED_gNB_MAX[ (hard coded)
uint32_t total_TBS[NUMBER_OF_CONNECTED_gNB_MAX];
openair1/PHY/defs_nr_common.h
-34
View File
@@ -93,7 +93,6 @@
#define NR_MAX_NB_HARQ_PROCESSES 16
#define NR_MAX_PDSCH_TBS 3824
#define NR_MAX_SIB_LENGTH 2976 // 3GPP TS 38.331 section 5.2.1 - The physical layer imposes a limit to the maximum size a SIB can take. The maximum SIB1 or SI message size is 2976 bits.
#define MAX_NUM_NR_DLSCH_SEGMENTS_PER_LAYER 36
@@ -203,39 +202,6 @@ typedef struct NR_BWP_PARMS {
nr_prg_parms_t prg_parms;
} NR_BWP_PARMS;
typedef struct {
/// PRACH format retrieved from prach_ConfigIndex
uint16_t prach_format;
/// Preamble index for PRACH (0-63)
uint8_t ra_PreambleIndex;
/// Preamble Tx Counter
uint8_t RA_PREAMBLE_TRANSMISSION_COUNTER;
/// Preamble Power Ramping Counter
uint8_t RA_PREAMBLE_POWER_RAMPING_COUNTER;
/// 2-step RA power offset
int POWER_OFFSET_2STEP_RA;
/// Target received power at gNB. Baseline is range -202..-60 dBm. Depends on delta preamble, power ramping counter and step.
int ra_PREAMBLE_RECEIVED_TARGET_POWER;
/// PRACH index for TDD (0 ... 6) depending on TDD configuration and prachConfigIndex
uint8_t ra_TDD_map_index;
/// RA Preamble Power Ramping Step in dB
uint32_t RA_PREAMBLE_POWER_RAMPING_STEP;
///
uint8_t RA_PREAMBLE_BACKOFF;
///
uint8_t RA_SCALING_FACTOR_BI;
/// Indicating whether it is 2-step or 4-step RA
nr_ra_type_e RA_TYPE;
/// UE configured maximum output power
int RA_PCMAX;
/// Corresponding RA-RNTI for UL-grant
uint16_t ra_RNTI;
/// Frame of last completed synch
uint16_t sync_frame;
/// Flag to indicate that prach is ready to start: it is enabled with an initial delay after the sync
uint8_t init_msg1;
} NR_PRACH_RESOURCES_t;
typedef struct {
uint8_t k_0_p[MAX_NUM_NR_SRS_AP][MAX_NUM_NR_SRS_SYMBOLS];
uint8_t srs_generated_signal_bits;
openair1/SCHED_NR/nr_prach_procedures.c
+4 -22
View File
@@ -121,30 +121,12 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot) {
ru=gNB->RU_list[0];
int prach_id=find_nr_prach(gNB,frame,slot,SEARCH_EXIST);
if (prach_id>=0) {
nfapi_nr_prach_pdu_t *prach_pdu = &gNB->prach_vars.list[prach_id].pdu;
uint8_t prachStartSymbol;
uint8_t N_dur = get_nr_prach_duration(prach_pdu->prach_format);
/*
uint16_t format,RA_sfn_index;
uint8_t start_symbol,N_t_slot,N_dur,N_RA_slot,config_period;
get_nr_prach_info_from_index(gNB->gNB_config.prach_config.prach_ConfigurationIndex.value,
frame,slot,
gNB->gNB_config.carrier_config.dl_frequency.value,
gNB->frame_parms.numerology_index,
gNB->frame_parms.frame_type,
&format,
&start_symbol,
&N_t_slot,
&N_dur,
&RA_sfn_index,
&N_RA_slot,
&config_period);
*/
for(int prach_oc = 0; prach_oc < prach_pdu->num_prach_ocas; prach_oc++) {
for (ru_aa=0,aa=0;ru_aa<ru->nb_rx;ru_aa++,aa++) {
gNB->prach_vars.rxsigF[aa] = ru->prach_rxsigF[prach_oc][ru_aa];
@@ -152,7 +134,7 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot) {
prachStartSymbol = prach_pdu->prach_start_symbol+prach_oc*N_dur;
//comment FK: the standard 38.211 section 5.3.2 has one extra term +14*N_RA_slot. This is because there prachStartSymbol is given wrt to start of the 15kHz slot or 60kHz slot. Here we work slot based, so this function is anyway only called in slots where there is PRACH. Its up to the MAC to schedule another PRACH PDU in the case there are there N_RA_slot \in {0,1}.
rx_nr_prach(gNB,
prach_pdu,
prach_oc,
@@ -160,8 +142,8 @@ void L1_nr_prach_procedures(PHY_VARS_gNB *gNB,int frame,int slot) {
slot,
&max_preamble[0],
&max_preamble_energy[0],
&max_preamble_delay[0]
);
&max_preamble_delay[0]);
free_nr_prach_entry(gNB,prach_id);
LOG_D(PHY,"[RAPROC] Frame %d, slot %d, occasion %d (prachStartSymbol %d) : Most likely preamble %d, energy %d.%d dB delay %d (prach_energy counter %d)\n",
frame,slot,prach_oc,prachStartSymbol,
openair1/SCHED_NR_UE/fapi_nr_ue_l1.c
-1
View File
@@ -411,7 +411,6 @@ int8_t nr_ue_scheduled_response(nr_scheduled_response_t *scheduled_response){
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;
openair1/SCHED_NR_UE/phy_procedures_nr_ue.c
+11 -36
View File
@@ -52,7 +52,6 @@
#include "executables/softmodem-common.h"
#include "executables/nr-uesoftmodem.h"
#include "LAYER2/NR_MAC_UE/mac_proto.h"
#include "LAYER2/NR_MAC_UE/nr_l1_helpers.h"
//#define DEBUG_PHY_PROC
#define NR_PDCCH_SCHED
@@ -391,8 +390,6 @@ static void nr_ue_pbch_procedures(uint8_t gNB_id,
if (ue->UE_mode[gNB_id] == NOT_SYNCHED && ue->no_timing_correction == 1){
if (get_softmodem_params()->do_ra) {
ue->UE_mode[gNB_id] = PRACH;
ue->prach_resources[gNB_id]->sync_frame = frame_rx;
ue->prach_resources[gNB_id]->init_msg1 = 0;
} else {
ue->UE_mode[gNB_id] = PUSCH;
}
@@ -1302,44 +1299,25 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
int frame_tx = proc->frame_tx, nr_slot_tx = proc->nr_slot_tx, prach_power; // tx_amp
uint8_t mod_id = ue->Mod_id;
NR_PRACH_RESOURCES_t * prach_resources = ue->prach_resources[gNB_id];
AssertFatal(prach_resources != NULL, "ue->prach_resources[%u] == NULL\n", 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_TDD_map_index = 0;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = 10;
prach_resources->ra_RNTI = 0x1234;
nr_prach = 1;
prach_resources->init_msg1 = 1;
} else {
nr_prach = nr_ue_get_rach(prach_resources, &ue->prach_vars[0]->prach_pdu, mod_id, ue->CC_id, frame_tx, gNB_id, nr_slot_tx);
LOG_D(PHY, "In %s:[%d.%d] getting PRACH resources : %d\n", __FUNCTION__, frame_tx, nr_slot_tx,nr_prach);
}
nr_prach = nr_ue_get_rach(&ue->prach_vars[gNB_id]->prach_pdu, mod_id, ue->CC_id, frame_tx, gNB_id, nr_slot_tx);
LOG_D(PHY, "In %s:[%d.%d] getting PRACH resources : %d\n", __FUNCTION__, frame_tx, nr_slot_tx,nr_prach);
if (nr_prach == GENERATE_PREAMBLE) {
if (ue->mac_enabled == 1) {
int16_t pathloss = get_nr_PL(mod_id, ue->CC_id, gNB_id);
int16_t ra_preamble_rx_power = (int16_t)(prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER - pathloss + 30);
ue->tx_power_dBm[nr_slot_tx] = min(nr_get_Pcmax(mod_id), ra_preamble_rx_power);
fapi_nr_ul_config_prach_pdu *prach_pdu = &ue->prach_vars[gNB_id]->prach_pdu;
ue->tx_power_dBm[nr_slot_tx] = prach_pdu->prach_tx_power;
LOG_D(PHY, "In %s: [UE %d][RAPROC][%d.%d]: Generating PRACH Msg1 (preamble %d, PL %d dB, P0_PRACH %d, TARGET_RECEIVED_POWER %d dBm, RA-RNTI %x)\n",
__FUNCTION__,
mod_id,
frame_tx,
nr_slot_tx,
prach_resources->ra_PreambleIndex,
pathloss,
ue->tx_power_dBm[nr_slot_tx],
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER,
prach_resources->ra_RNTI);
}
LOG_D(PHY, "In %s: [UE %d][RAPROC][%d.%d]: Generating PRACH Msg1 (preamble %d, P0_PRACH %d)\n",
__FUNCTION__,
mod_id,
frame_tx,
nr_slot_tx,
prach_pdu->ra_PreambleIndex,
ue->tx_power_dBm[nr_slot_tx]);
ue->prach_vars[gNB_id]->amp = AMP;
@@ -1358,9 +1336,6 @@ void nr_ue_prach_procedures(PHY_VARS_NR_UE *ue, UE_nr_rxtx_proc_t *proc, uint8_t
dB_fixed(prach_power),
ue->prach_vars[gNB_id]->amp);
if (ue->mac_enabled == 1)
nr_Msg1_transmitted(mod_id, ue->CC_id, frame_tx, gNB_id);
} else if (nr_prach == WAIT_CONTENTION_RESOLUTION) {
LOG_D(PHY, "In %s: [UE %d] RA waiting contention resolution\n", __FUNCTION__, mod_id);
ue->UE_mode[gNB_id] = RA_WAIT_CR;
openair1/SCHED_NR_UE/pucch_uci_ue_nr.c
+1 -5
View File
@@ -213,12 +213,8 @@ void pucch_procedures_ue_nr(PHY_VARS_NR_UE *ue,
pucch_pdu = &pucch_vars->pucch_pdu[i];
uint16_t nb_of_prbs = pucch_pdu->prb_size;
/* Generate PUCCH signal according to its format and parameters */
ue->generate_ul_signal[gNB_id] = 1;
int16_t PL = get_nr_PL(ue->Mod_id, ue->CC_id, gNB_id); /* LTE function because NR path loss not yet implemented FFS TODO NR */
int contributor = (10 * log10((double)(pow(2,(ue->frame_parms.numerology_index)) * nb_of_prbs)));
int16_t pucch_tx_power = pucch_pdu->pucch_tx_power + contributor + PL;
int16_t pucch_tx_power = pucch_pdu->pucch_tx_power;
if (pucch_tx_power > ue->tx_power_max_dBm)
pucch_tx_power = ue->tx_power_max_dBm;
openair1/SIMULATION/NR_PHY/nr_dummy_functions_prach.c
-333
View File
@@ -16,338 +16,5 @@ int32_t get_uldl_offset(int nr_bandP) { re
NR_IF_Module_t *NR_IF_Module_init(int Mod_id) {return(NULL);}
int dummy_nr_ue_dl_indication(nr_downlink_indication_t *dl_info) { return(0); }
int dummy_nr_ue_ul_indication(nr_uplink_indication_t *ul_info) { return(0); }
/*
* 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 ra_procedures.c
* \brief Routines for UE MAC-layer Random Access procedures (TS 38.321, Release 15)
* \author R. Knopp, Navid Nikaein, Guido Casati
* \date 2019
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr navid.nikaein@eurecom.fr, guido.casati@iis.fraunhofer.de
* \note
* \warning
*/
/*
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "PHY_INTERFACE/phy_interface_extern.h"
#include "SCHED_UE/sched_UE.h"
#include "COMMON/mac_rrc_primitives.h"
#include "RRC/LTE/rrc_extern.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "common/utils/LOG/log.h"
#include "UTIL/OPT/opt.h"
#include "OCG.h"
#include "OCG_extern.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"*/
/* Tools */
#include "SIMULATION/TOOLS/sim.h" // for taus
/* RRC */
#include "NR_RACH-ConfigCommon.h"
/* PHY */
#include "PHY/NR_TRANSPORT/nr_transport_common_proto.h"
#include "PHY/defs_common.h"
#include "PHY/defs_nr_common.h"
#include "PHY/NR_UE_ESTIMATION/nr_estimation.h"
/* MAC */
#include "LAYER2/NR_MAC_COMMON/nr_mac_extern.h"
#include "NR_MAC_COMMON/nr_mac.h"
#include "LAYER2/NR_MAC_UE/mac_proto.h"
#include "LAYER2/MAC/mac.h"
extern int64_t table_6_3_3_2_2_prachConfig_Index [256][9];
extern int64_t table_6_3_3_2_3_prachConfig_Index [256][9];
//extern uint8_t nfapi_mode;
// WIP
// This routine implements Section 5.1.2 (UE Random Access Resource Selection)
// and Section 5.1.3 (Random Access Preamble Transmission) from 3GPP TS 38.321
void nr_get_prach_resources(module_id_t mod_id,
int CC_id,
uint8_t gNB_id,
uint8_t t_id,
NR_PRACH_RESOURCES_t *prach_resources,
NR_RACH_ConfigDedicated_t * rach_ConfigDedicated){
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
NR_RACH_ConfigCommon_t *nr_rach_ConfigCommon;
// NR_BeamFailureRecoveryConfig_t *beam_failure_recovery_config = &mac->RA_BeamFailureRecoveryConfig; // todo
int messagePowerOffsetGroupB = 0, messageSizeGroupA, PLThreshold, sizeOfRA_PreamblesGroupA, numberOfRA_Preambles, i, deltaPreamble_Msg3 = 0;
uint8_t noGroupB = 0, s_id, f_id, ul_carrier_id, msg1_FDM, prach_ConfigIndex, SFN_nbr, Msg3_size;
// NR_RSRP_Range_t rsrp_ThresholdSSB; // todo
///////////////////////////////////////////////////////////
//////////* UE Random Access Resource Selection *//////////
///////////////////////////////////////////////////////////
// todo:
// - switch initialisation cases
// -- RA initiated by beam failure recovery operation (subclause 5.17 TS 38.321)
// --- SSB selection, set prach_resources->ra_PreambleIndex
// -- RA initiated by PDCCH: ra_preamble_index provided by PDCCH && ra_PreambleIndex != 0b000000
// --- set PREAMBLE_INDEX to ra_preamble_index
// --- select the SSB signalled by PDCCH
// -- RA initiated for SI request:
// --- SSB selection, set prach_resources->ra_PreambleIndex
// if (rach_ConfigDedicated) { // This is for network controlled Mobility
// // operation for contention-free RA resources when:
// // - available SSB with SS-RSRP above rsrp-ThresholdSSB: SSB selection
// // - availalbe CSI-RS with CSI-RSRP above rsrp-ThresholdCSI-RS: CSI-RS selection
// prach_resources->ra_PreambleIndex = rach_ConfigDedicated->ra_PreambleIndex;
// return;
// }
//////////* Contention-based RA preamble selection *//////////
// todo:
// - selection of SSB with SS-RSRP above rsrp-ThresholdSSB else select any SSB
// - todo determine next available PRACH occasion
// rsrp_ThresholdSSB = *nr_rach_ConfigCommon->rsrp_ThresholdSSB;
AssertFatal(mac->nr_rach_ConfigCommon != NULL, "[UE %d] FATAL nr_rach_ConfigCommon is NULL !!!\n", mod_id);
nr_rach_ConfigCommon = mac->nr_rach_ConfigCommon;
Msg3_size = mac->RA_Msg3_size;
numberOfRA_Preambles = *nr_rach_ConfigCommon->totalNumberOfRA_Preambles;
if (!nr_rach_ConfigCommon->groupBconfigured) {
noGroupB = 1;
} else {
// RA preambles group B is configured
// - Defining the number of RA preambles in RA Preamble Group A for each SSB */
sizeOfRA_PreamblesGroupA = nr_rach_ConfigCommon->groupBconfigured->numberOfRA_PreamblesGroupA;
switch (nr_rach_ConfigCommon->groupBconfigured->ra_Msg3SizeGroupA){
/* - Threshold to determine the groups of RA preambles */
case 0:
messageSizeGroupA = 56;
break;
case 1:
messageSizeGroupA = 144;
break;
case 2:
messageSizeGroupA = 208;
break;
case 3:
messageSizeGroupA = 256;
break;
case 4:
messageSizeGroupA = 282;
break;
case 5:
messageSizeGroupA = 480;
break;
case 6:
messageSizeGroupA = 640;
break;
case 7:
messageSizeGroupA = 800;
break;
case 8:
messageSizeGroupA = 1000;
break;
case 9:
messageSizeGroupA = 72;
break;
default:
AssertFatal(1 == 0,"Unknown ra_Msg3SizeGroupA %lu\n", nr_rach_ConfigCommon->groupBconfigured->ra_Msg3SizeGroupA);
/* todo cases 10 -15*/
}
/* Power offset for preamble selection in dB */
messagePowerOffsetGroupB = -9999;
switch (nr_rach_ConfigCommon->groupBconfigured->messagePowerOffsetGroupB){
case 0:
messagePowerOffsetGroupB = -9999;
break;
case 1:
messagePowerOffsetGroupB = 0;
break;
case 2:
messagePowerOffsetGroupB = 5;
break;
case 3:
messagePowerOffsetGroupB = 8;
break;
case 4:
messagePowerOffsetGroupB = 10;
break;
case 5:
messagePowerOffsetGroupB = 12;
break;
case 6:
messagePowerOffsetGroupB = 15;
break;
case 7:
messagePowerOffsetGroupB = 18;
break;
default:
AssertFatal(1 == 0,"Unknown messagePowerOffsetGroupB %lu\n", nr_rach_ConfigCommon->groupBconfigured->messagePowerOffsetGroupB);
}
}
PLThreshold = prach_resources->RA_PCMAX - nr_rach_ConfigCommon->rach_ConfigGeneric.preambleReceivedTargetPower - deltaPreamble_Msg3 - messagePowerOffsetGroupB;
/* Msg3 has not been transmitted yet */
if (first_Msg3 == 1) {
if (noGroupB == 1) {
// use Group A preamble
prach_resources->ra_PreambleIndex = (taus()) % numberOfRA_Preambles;
mac->RA_usedGroupA = 1;
} else if ((Msg3_size < messageSizeGroupA) && (get_nr_PL(mod_id, CC_id, gNB_id) > PLThreshold)) {
// Group B is configured and RA preamble Group A is used
// - todo add condition on CCCH_sdu_size for initiation by CCCH
prach_resources->ra_PreambleIndex = (taus()) % sizeOfRA_PreamblesGroupA;
mac->RA_usedGroupA = 1;
} else {
// Group B preamble is configured and used
// the first sizeOfRA_PreamblesGroupA RA preambles belong to RA Preambles Group A
// the remaining belong to RA Preambles Group B
prach_resources->ra_PreambleIndex = sizeOfRA_PreamblesGroupA + (taus()) % (numberOfRA_Preambles - sizeOfRA_PreamblesGroupA);
mac->RA_usedGroupA = 0;
}
} else { // Msg3 is being retransmitted
if (mac->RA_usedGroupA == 1 && noGroupB == 1) {
prach_resources->ra_PreambleIndex = (taus()) % numberOfRA_Preambles;
} else if (mac->RA_usedGroupA == 1 && noGroupB == 0){
prach_resources->ra_PreambleIndex = (taus()) % sizeOfRA_PreamblesGroupA;
} else {
prach_resources->ra_PreambleIndex = sizeOfRA_PreamblesGroupA + (taus()) % (numberOfRA_Preambles - sizeOfRA_PreamblesGroupA);
}
}
// todo determine next available PRACH occasion
// - if RA initiated for SI request and ra_AssociationPeriodIndex and si-RequestPeriod are configured
// - else if SSB is selected above
// - else if CSI-RS is selected above
/////////////////////////////////////////////////////////////////////////////
//////////* Random Access Preamble Transmission (5.1.3 TS 38.321) *//////////
/////////////////////////////////////////////////////////////////////////////
// todo:
// - condition on notification of suspending power ramping counter from lower layer (5.1.3 TS 38.321)
// - check if SSB or CSI-RS have not changed since the selection in the last RA Preamble tranmission
// - Extend RA_rnti computation (e.g. f_id selection, ul_carrier_id are hardcoded)
if (mac->RA_PREAMBLE_TRANSMISSION_COUNTER > 1)
mac->RA_PREAMBLE_TRANSMISSION_COUNTER++;
prach_resources->ra_PREAMBLE_RECEIVED_TARGET_POWER = nr_get_Po_NOMINAL_PUSCH(prach_resources, mod_id, CC_id);
// RA-RNTI computation (associated to PRACH occasion in which the RA Preamble is transmitted)
// 1) this does not apply to contention-free RA Preamble for beam failure recovery request
// 2) getting star_symb, SFN_nbr from table 6.3.3.2-3 (TDD and FR1 scenario)
switch (nr_rach_ConfigCommon->rach_ConfigGeneric.msg1_FDM){ // todo this is not used
case 0:
msg1_FDM = 1;
break;
case 1:
msg1_FDM = 2;
break;
case 2:
msg1_FDM = 4;
break;
case 3:
msg1_FDM = 8;
break;
default:
AssertFatal(1 == 0,"Unknown msg1_FDM %lu\n", nr_rach_ConfigCommon->rach_ConfigGeneric.msg1_FDM);
}
prach_ConfigIndex = nr_rach_ConfigCommon->rach_ConfigGeneric.prach_ConfigurationIndex;
// ra_RNTI computation
// - todo: this is for TDD FR1 only
// - ul_carrier_id: UL carrier used for RA preamble transmission, hardcoded for NUL carrier
// - f_id: index of the PRACH occasion in the frequency domain
// - s_id is starting symbol of the PRACH occasion [0...14]
// - t_id is the first slot of the PRACH occasion in a system frame [0...80]
ul_carrier_id = 0; // NUL
f_id = nr_rach_ConfigCommon->rach_ConfigGeneric.msg1_FrequencyStart;
SFN_nbr = table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][4];
s_id = table_6_3_3_2_3_prachConfig_Index[prach_ConfigIndex][5];
// Pick the first slot of the PRACH occasion in a system frame
for (i = 0; i < 10; i++){
if (((SFN_nbr & (1 << i)) >> i) == 1){
t_id = 2*i;
break;
}
}
prach_resources->ra_RNTI = 1 + s_id + 14 * t_id + 1120 * f_id + 8960 * ul_carrier_id;
mac->ra_rnti = prach_resources->ra_RNTI;
LOG_D(MAC, "Computed ra_RNTI is %d", prach_resources->ra_RNTI);
}
// TbD: RA_attempt_number not used
void nr_Msg1_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, uint8_t gNB_id){
AssertFatal(CC_id == 0, "Transmission on secondary CCs is not supported yet\n");
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
mac->ra_state = WAIT_RAR;
// Start contention resolution timer
mac->RA_attempt_number++;
}
void nr_Msg3_transmitted(module_id_t mod_id, uint8_t CC_id, frame_t frameP, slot_t slotP, uint8_t gNB_id){
AssertFatal(CC_id == 0, "Transmission on secondary CCs is not supported yet\n");
LOG_D(MAC,"[UE %d][RAPROC] Frame %d : Msg3_tx: Starting contention resolution timer\n", mod_id, frameP);
NR_UE_MAC_INST_t *mac = get_mac_inst(mod_id);
// start contention resolution timer
mac->RA_contention_resolution_cnt = 0;
mac->RA_contention_resolution_timer_active = 1;
}
/////////////////////////////////////////////////////////////////////////
///////* Random Access Preamble Initialization (5.1.1 TS 38.321) *///////
/////////////////////////////////////////////////////////////////////////
/// Handling inizialization by PDCCH order, MAC entity or RRC (TS 38.300)
/// Only one RA procedure is ongoing at any point in time in a MAC entity
/// the RA procedure on a SCell shall only be initiated by PDCCH order
// WIP
// todo TS 38.321:
// - check if carrier to use is explicitly signalled then do (1) RA CARRIER SELECTION (SUL, NUL) (2) set PCMAX
// - BWP operation (subclause 5.15 TS 38.321)
// - handle initialization by beam failure recovery
// - handle initialization by handover
// - handle transmission on DCCH using PRACH (during handover, or sending SR for example)
// - take into account MAC CEs in size_sdu (currently hardcoded size to 1 MAC subPDU and 1 padding subheader)
// - fix rrc data req logic
// - retrieve TBS
// - add mac_rrc_nr_data_req_ue, etc ...
// - add the backoff condition here if we have it from a previous RA reponse which failed (i.e. backoff indicator)
openair1/SIMULATION/NR_PHY/prachsim.c
+21 -31
View File
@@ -264,7 +264,6 @@ int main(int argc, char **argv){
int n_bytes=0;
NR_DL_FRAME_PARMS *frame_parms;
NR_PRACH_RESOURCES_t prach_resources;
nfapi_nr_prach_config_t *prach_config;
nfapi_nr_prach_pdu_t *prach_pdu;
fapi_nr_prach_config_t *ue_prach_config;
@@ -694,7 +693,6 @@ int main(int argc, char **argv){
ue_prach_pdu = &UE->prach_vars[0]->prach_pdu;
ue_prach_config = &UE->nrUE_config.prach_config;
UE->prach_resources[0] = &prach_resources;
txdata = UE->common_vars.txdata;
UE->prach_vars[0]->amp = AMP;
@@ -717,8 +715,7 @@ int main(int argc, char **argv){
if (n_frames == 1)
printf("raPreamble %d\n",preamble_tx);
UE->prach_resources[0]->ra_PreambleIndex = preamble_tx;
UE->prach_resources[0]->init_msg1 = 1;
ue_prach_pdu->ra_PreambleIndex = preamble_tx;
// Configure channel
bw = N_RB_UL*(180e3)*(1 << frame_parms->numerology_index);
@@ -769,14 +766,7 @@ int main(int argc, char **argv){
ue_prach_config->num_prach_fd_occasions_list[fd_occasion].prach_root_sequence_index,
UE->X_u);
/*tx_lev = generate_nr_prach(UE,
0, //gNB_id,
subframe); */ //commented for testing purpose
UE_nr_rxtx_proc_t proc={0};
proc.frame_tx = frame;
proc.nr_slot_tx = slot;
nr_ue_prach_procedures(UE, &proc, 0);
generate_nr_prach(UE, 0, frame, slot);
/* tx_lev_dB not used later, no need to set */
//tx_lev_dB = (unsigned int) dB_fixed(tx_lev);
@@ -842,31 +832,31 @@ int main(int argc, char **argv){
for (trial=0; trial<n_frames; trial++) {
if (input_fd==NULL) {
sigma2_dB = 10*log10((double)tx_lev) - SNR - 10*log10(N_RB_UL*12/N_ZC);
sigma2_dB = 10*log10((double)tx_lev) - SNR - 10*log10(N_RB_UL*12/N_ZC);
if (n_frames==1)
printf("sigma2_dB %f (SNR %f dB) tx_lev_dB %f\n",sigma2_dB,SNR,10*log10((double)tx_lev));
if (n_frames==1)
printf("sigma2_dB %f (SNR %f dB) tx_lev_dB %f\n",sigma2_dB,SNR,10*log10((double)tx_lev));
//AWGN
sigma2 = pow(10,sigma2_dB/10);
// printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
//AWGN
sigma2 = pow(10,sigma2_dB/10);
// printf("Sigma2 %f (sigma2_dB %f)\n",sigma2,sigma2_dB);
if (awgn_flag == 0) {
multipath_tv_channel(UE2gNB, s_re, s_im, r_re, r_im, frame_parms->samples_per_frame, 0);
}
if (awgn_flag == 0) {
multipath_tv_channel(UE2gNB, s_re, s_im, r_re, r_im, frame_parms->samples_per_frame, 0);
}
if (n_frames==1) {
printf("rx_level data symbol %f, tx_lev %f\n",
10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0)),
10*log10(tx_lev));
}
if (n_frames==1) {
printf("rx_level data symbol %f, tx_lev %f\n",
10*log10(signal_energy_fp(r_re,r_im,1,OFDM_SYMBOL_SIZE_COMPLEX_SAMPLES,0)),
10*log10(tx_lev));
}
for (i = 0; i< frame_parms->samples_per_subframe; i++) {
for (aa = 0; aa < frame_parms->nb_antennas_rx; aa++) {
((short*) &ru->common.rxdata[aa][rx_prach_start])[2*i] = (short) (.167*(r_re[aa][i] +sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
((short*) &ru->common.rxdata[aa][rx_prach_start])[2*i+1] = (short) (.167*(r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
for (i = 0; i< frame_parms->samples_per_subframe; i++) {
for (aa = 0; aa < frame_parms->nb_antennas_rx; aa++) {
((short*) &ru->common.rxdata[aa][rx_prach_start])[2*i] = (short) (.167*(r_re[aa][i] +sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
((short*) &ru->common.rxdata[aa][rx_prach_start])[2*i+1] = (short) (.167*(r_im[aa][i] + (iqim*r_re[aa][i]) + sqrt(sigma2/2)*gaussdouble(0.0,1.0)));
}
}
}
} else {
n_bytes = fread(&ru->common.rxdata[0][rx_prach_start],sizeof(int32_t),frame_parms->samples_per_subframe,input_fd);
printf("fread %d bytes from file %s\n",n_bytes,input_file);