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Commit 505d06e9 authored by adk's avatar adk Committed by Thomas Schlichter
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PUSCH PTRS generation

parent e72e1d87
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Showing with 583 additions and 6 deletions
cmake_targets/CMakeLists.txt
View file @ 505d06e9
...@@ -1467,6 +1467,7 @@ set(PHY_SRC_UE ...@@ -1467,6 +1467,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/dmrs_nr.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/dmrs_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/ptrs_nr.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c
${OPENAIR1_DIR}/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c ${OPENAIR1_DIR}/PHY/NR_ESTIMATION/nr_ul_channel_estimation.c
${OPENAIR1_DIR}/PHY/NR_ESTIMATION/nr_adjust_sync_gNB.c ${OPENAIR1_DIR}/PHY/NR_ESTIMATION/nr_adjust_sync_gNB.c
...@@ -1513,6 +1514,7 @@ set(PHY_SRC_UE ...@@ -1513,6 +1514,7 @@ set(PHY_SRC_UE
${OPENAIR1_DIR}/PHY/NR_REFSIG/ul_ref_seq_nr.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/ul_ref_seq_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_dmrs_rx.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/dmrs_nr.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/dmrs_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/ptrs_nr.c
${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold_ue.c ${OPENAIR1_DIR}/PHY/NR_REFSIG/nr_gold_ue.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/filt16a_32.c
${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c ${OPENAIR1_DIR}/PHY/NR_UE_ESTIMATION/nr_dl_channel_estimation.c
......
openair1/PHY/NR_REFSIG/ptrs_nr.c 0 → 100644
View file @ 505d06e9
/*
* 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
*/
/**********************************************************************
*
* FILENAME : ptrs_nr.c
*
* MODULE : phase tracking reference signals
*
* DESCRIPTION : resource element mapping of ptrs sequences
* 3GPP TS 38.211 and 3GPP TS 38.214
*
************************************************************************/
#include <stdint.h>
#include <stdio.h>
#include "dmrs_nr.h"
#include "PHY/NR_REFSIG/ptrs_nr.h"
/***********************************************************************/
//#define max(a,b) (((a) > (b)) ? (a) : (b))
// TS 38.211 Table 6.4.1.2.2.1-1: The parameter kRE_ref.
// The first 4 colomns are DM-RS Configuration type 1 and the last 4 colomns are DM-RS Configuration type 2.
int16_t table_6_4_1_2_2_1_1_pusch_ptrs_kRE_ref [6][8] = {
{ 0, 2, 6, 8, 0, 1, 6, 7},
{ 2, 4, 8, 10, 1, 6, 7, 0},
{ 1, 3, 7, 9, 2, 3, 8, 9},
{ 3, 5, 9, 11, 3, 8, 9, 2},
{-1, -1, -1, -1, 4, 5, 10, 11},
{-1, -1, -1, -1, 5, 10, 11, 4},
};
/*******************************************************************
*
* NAME : get_kRE_ref
*
* PARAMETERS : dmrs_antenna_port DMRS antenna port
* pusch_dmrs_type PUSCH DMRS type
* resourceElementOffset the parameter resourceElementOffset
*
* RETURN : the parameter k_RE_ref
*
* DESCRIPTION : 3GPP TS 38.211 Table 6.4.1.2.2.1-1
*
*********************************************************************/
int16_t get_kRE_ref(uint8_t dmrs_antenna_port, uint8_t pusch_dmrs_type, uint8_t resourceElementOffset) {
uint8_t colomn;
int16_t k_RE_ref;
colomn = resourceElementOffset;
if (pusch_dmrs_type == 2)
colomn += 4;
k_RE_ref = table_6_4_1_2_2_1_1_pusch_ptrs_kRE_ref[dmrs_antenna_port][colomn];
AssertFatal(k_RE_ref>=0,"invalid k_RE_ref < 0. Check PTRS Configuration\n");
return k_RE_ref;
}
/*******************************************************************
*
* NAME : get_K_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* N_RB number of RBs scheduled for PUSCH
*
* RETURN : the parameter K_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-2
*
*********************************************************************/
uint8_t get_K_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint16_t N_RB){
uint16_t nrb0, nrb1;
nrb0 = ptrs_UplinkConfig->frequencyDensity.n_rb0;
nrb1 = ptrs_UplinkConfig->frequencyDensity.n_rb1;
if (nrb0 == 0 || nrb0 == 0)
return 2;
if (N_RB < nrb0){
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
}
else if (N_RB >= nrb0 && N_RB < nrb1)
return 2;
else
return 4;
}
/*******************************************************************
*
* NAME : set_ptrs_symb_idx
*
* PARAMETERS : ptrs_symbols PTRS OFDM symbol indicies bit mask
* ptrs_UplinkConfig PTRS uplink configuration
* dmrs_UplinkConfig DMRS uplink configuration
* mapping_type PUSCH time domain mapping type
* duration_in_symbols number of scheduled PUSCH ofdm symbols
* start_symbol first ofdm symbol of PUSCH within slot
* L_ptrs the parameter L_ptrs
* ofdm_symbol_size FFT size
*
* RETURN : sets the bit map of PTRS ofdm symbol indicies
*
* DESCRIPTION : 3GPP TS 38.211 6.4.1.2.2.1
*
*********************************************************************/
void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
ptrs_UplinkConfig_t *ptrs_UplinkConfig,
dmrs_UplinkConfig_t *dmrs_UplinkConfig,
uint8_t mapping_type,
uint8_t duration_in_symbols,
uint8_t start_symbol,
uint8_t L_ptrs,
uint16_t ofdm_symbol_size) {
uint8_t i, last_symbol, is_dmrs_symbol1, is_dmrs_symbol2;
int16_t l_ref;
*ptrs_symbols = 0;
i = 0;
is_dmrs_symbol1 = 0;
is_dmrs_symbol2 = 0;
l_ref = start_symbol;
last_symbol = start_symbol + duration_in_symbols - 1;
while ( (l_ref + i*L_ptrs) <= last_symbol) {
is_dmrs_symbol1 = is_dmrs_symbol(max((l_ref + (i-1)*L_ptrs + 1), l_ref),
0,
0,
0,
0,
0,
duration_in_symbols,
dmrs_UplinkConfig,
mapping_type,
ofdm_symbol_size);
is_dmrs_symbol2 = is_dmrs_symbol(l_ref + i*L_ptrs,
0,
0,
0,
0,
0,
duration_in_symbols,
dmrs_UplinkConfig,
mapping_type,
ofdm_symbol_size);
if ( is_dmrs_symbol1 + is_dmrs_symbol2 > 0 ) {
if (dmrs_UplinkConfig->pusch_maxLength == 2)
l_ref = l_ref + i*L_ptrs + 1;
else
l_ref = l_ref + i*L_ptrs;
i = 1;
continue;
}
*ptrs_symbols = *ptrs_symbols | (1<<(l_ref + i*L_ptrs));
i++;
}
}
/*******************************************************************
*
* NAME : get_L_ptrs
*
* PARAMETERS : ptrs_UplinkConfig PTRS uplink configuration
* I_mcs MCS index used for PUSCH
*
* RETURN : the parameter L_ptrs
*
* DESCRIPTION : 3GPP TS 38.214 6.2.3 Table 6.2.3.1-1
*
*********************************************************************/
uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs) {
uint8_t mcs1, mcs2, mcs3;
mcs1 = ptrs_UplinkConfig->timeDensity.ptrs_mcs1;
mcs2 = ptrs_UplinkConfig->timeDensity.ptrs_mcs2;
mcs3 = ptrs_UplinkConfig->timeDensity.ptrs_mcs3;
if (mcs1 == 0 || mcs2 == 0 || mcs3 == 0)
return 1;
if (I_mcs < mcs1){
LOG_I(PHY,"PUSH PT-RS is not present.\n");
return 0;
}
else if (I_mcs >= mcs1 && I_mcs < mcs2)
return 4;
else if (I_mcs >= mcs2 && I_mcs < mcs3)
return 2;
else
return 1;
}
/*******************************************************************
*
* NAME : is_ptrs_subcarrier
*
* PARAMETERS : k subcarrier index
* K_ptrs the parameter K_ptrs
* n_rnti UE CRNTI
* N_RB number of RBs scheduled for PUSCH
* k_RE_ref the parameter k_RE_ref
* start_sc first subcarrier index
* ofdm_symbol_size FFT size
*
* RETURN : 1 if subcarrier k is PTRS, or 0 otherwise
*
* DESCRIPTION : 3GPP TS 38.211 6.4.1.2 Phase-tracking reference signal for PUSCH
*
*********************************************************************/
uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc, uint16_t ofdm_symbol_size) {
uint16_t k_RB_ref, i, sc;
i = 0;
sc = 0;
k_RB_ref = 0;
if (N_RB % K_ptrs == 0)
k_RB_ref = n_rnti % K_ptrs;
else
k_RB_ref = n_rnti % (N_RB % K_ptrs);
while (k > sc){
sc = (start_sc + k_RE_ref + (i*K_ptrs + k_RB_ref)*NR_NB_SC_PER_RB)%ofdm_symbol_size;
i++;
}
if (k == sc)
return 1;
else
return 0;
}
/*******************************************************************
*
* NAME : is_ptrs_symbol
*
* PARAMETERS : l ofdm symbol index within slot
* k subcarrier index
* n_rnti UE CRNTI
* N_RB number of RBs scheduled for PUSCH
* duration_in_symbols number of scheduled PUSCH ofdm symbols
* dmrs_antenna_port DMRS antenna port
* K_ptrs the parameter K_ptrs
* ptrs_symbols bit mask of ptrs
* start_sc first subcarrier index
* ofdm_symbol_size FFT size
* pusch_dmrs_type PUSCH DMRS type (1 or 2)
* ptrs_UplinkConfig PTRS uplink configuration
*
* RETURN : 0 if symbol(k,l) is data, or 1 if symbol(k,l) is ptrs
*
* DESCRIPTION : 3GPP TS 38.211 6.4.1.2 Phase-tracking reference signal for PUSCH
*
*********************************************************************/
uint8_t is_ptrs_symbol(uint8_t l,
uint16_t k,
uint16_t n_rnti,
uint16_t N_RB,
uint8_t duration_in_symbols,
uint8_t dmrs_antenna_port,
uint8_t K_ptrs,
uint16_t ptrs_symbols,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
pusch_dmrs_type_t pusch_dmrs_type,
ptrs_UplinkConfig_t *ptrs_UplinkConfig) {
uint8_t is_ptrs_freq, is_ptrs_time;
int16_t k_RE_ref;
is_ptrs_freq = 0;
is_ptrs_time = 0;
k_RE_ref = get_kRE_ref(dmrs_antenna_port, pusch_dmrs_type, ptrs_UplinkConfig->resourceElementOffset);
is_ptrs_freq = is_ptrs_subcarrier(k, K_ptrs, n_rnti, N_RB, k_RE_ref, start_sc, ofdm_symbol_size);
if (is_ptrs_freq == 0)
return 0;
if (((ptrs_symbols>>l)&1) == 1)
is_ptrs_time = 1;
if (is_ptrs_time && is_ptrs_freq)
return 1;
else
return 0;
}
/*
int main(int argc, char const *argv[])
{
dmrs_UplinkConfig_t dmrs_Uplink_Config;
ptrs_UplinkConfig_t ptrs_Uplink_Config;
uint8_t resourceElementOffset;
uint8_t dmrs_antenna_port;
uint8_t L_ptrs, K_ptrs;
int16_t k_RE_ref;
uint16_t N_RB, ptrs_symbols, ofdm_symbol_size, k;
uint8_t duration_in_symbols, I_mcs;
uint8_t start_symbol, l;
uint8_t ptrs_symbol_flag;
uint16_t n_rnti;
dmrs_Uplink_Config.pusch_dmrs_type = pusch_dmrs_type1;
dmrs_Uplink_Config.pusch_dmrs_AdditionalPosition = pusch_dmrs_pos1;
dmrs_Uplink_Config.pusch_maxLength = pusch_len2;
ptrs_Uplink_Config.timeDensity.ptrs_mcs1 = 0; // setting MCS values to 0 indicate abscence of time_density field in the configuration
ptrs_Uplink_Config.timeDensity.ptrs_mcs2 = 0;
ptrs_Uplink_Config.timeDensity.ptrs_mcs3 = 0;
ptrs_Uplink_Config.frequencyDensity.n_rb0 = 0; // setting N_RB values to 0 indicate abscence of frequency_density field in the configuration
ptrs_Uplink_Config.frequencyDensity.n_rb1 = 0;
ptrs_Uplink_Config.resourceElementOffset = 0;
n_rnti = 0x1234;
resourceElementOffset = 0;
ptrs_symbols = 0;
dmrs_antenna_port = 0;
N_RB = 50;
duration_in_symbols = 14;
ofdm_symbol_size = 2048;
I_mcs = 9;
start_symbol = 0;
ptrs_symbol_flag = 0;
k_RE_ref = get_kRE_ref(dmrs_antenna_port, dmrs_Uplink_Config.pusch_dmrs_type, resourceElementOffset);
K_ptrs = get_K_ptrs(&ptrs_Uplink_Config, N_RB);
L_ptrs = get_L_ptrs(&ptrs_Uplink_Config, I_mcs);
set_ptrs_symb_idx(&ptrs_symbols,
&ptrs_Uplink_Config,
&dmrs_Uplink_Config,
1,
duration_in_symbols,
start_symbol,
L_ptrs,
ofdm_symbol_size);
printf("PTRS OFDM symbol indicies: ");
for (l = start_symbol; l < start_symbol + duration_in_symbols; l++){
ptrs_symbol_flag = is_ptrs_symbol(l,
0,
n_rnti,
N_RB,
duration_in_symbols,
dmrs_antenna_port,
K_ptrs,
ptrs_symbols,
dmrs_Uplink_Config.pusch_dmrs_type,
&ptrs_Uplink_Config);
if (ptrs_symbol_flag == 1)
printf(" %d ", l);
}
printf("\n");
printf("PTRS subcarrier indicies: ");
for (k = 0; k < N_RB*12; k++){
if (is_ptrs_subcarrier(k, K_ptrs, n_rnti, N_RB, k_RE_ref) == 1)
printf(" %d ", k);
}
printf("\n");
return 0;
}
*/
\ No newline at end of file
openair1/PHY/NR_REFSIG/ptrs_nr.h 0 → 100644
View file @ 505d06e9
/*
* 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
*/
/**********************************************************************
*
* FILENAME : dmrs.h
*
* MODULE : demodulation reference signals
*
* DESCRIPTION : generation of dmrs sequences for NR 5G
* 3GPP TS 38.211
*
************************************************************************/
#ifndef PTRS_NR_H
#define PTRS_NR_H
#include "PHY/defs_nr_UE.h"
/************** CODE GENERATION ***********************************/
/************** DEFINE ********************************************/
/************* STRUCTURES *****************************************/
/************** VARIABLES *****************************************/
/************** FUNCTION ******************************************/
int16_t get_kRE_ref(uint8_t dmrs_antenna_port, uint8_t pusch_dmrs_type, uint8_t resourceElementOffset);
uint8_t get_K_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint16_t N_RB);
void set_ptrs_symb_idx(uint16_t *ptrs_symbols,
ptrs_UplinkConfig_t *ptrs_UplinkConfig,
dmrs_UplinkConfig_t *dmrs_UplinkConfig,
uint8_t mapping_type,
uint8_t duration_in_symbols,
uint8_t start_symbol,
uint8_t L_ptrs,
uint16_t ofdm_symbol_size);
uint8_t get_L_ptrs(ptrs_UplinkConfig_t *ptrs_UplinkConfig, uint8_t I_mcs);
uint8_t is_ptrs_subcarrier(uint16_t k, uint8_t K_ptrs, uint16_t n_rnti, uint16_t N_RB, int16_t k_RE_ref, uint16_t start_sc, uint16_t ofdm_symbol_size);
uint8_t is_ptrs_symbol(uint8_t l,
uint16_t k,
uint16_t n_rnti,
uint16_t N_RB,
uint8_t duration_in_symbols,
uint8_t dmrs_antenna_port,
uint8_t K_ptrs,
uint16_t ptrs_symbols,
uint16_t start_sc,
uint16_t ofdm_symbol_size,
pusch_dmrs_type_t pusch_dmrs_type,
ptrs_UplinkConfig_t *ptrs_UplinkConfig);
#endif /* PTRS_NR_H */
\ No newline at end of file
openair1/PHY/NR_UE_TRANSPORT/nr_transport_ue.h
View file @ 505d06e9
...@@ -240,6 +240,8 @@ typedef struct { ...@@ -240,6 +240,8 @@ typedef struct {
int16_t Po_SRS; int16_t Po_SRS;
/// num active cba group /// num active cba group
uint8_t num_active_cba_groups; uint8_t num_active_cba_groups;
/// bit mask of PT-RS ofdm symbol indicies
uint16_t ptrs_symbols;
/// num dci found for cba /// num dci found for cba
//uint8_t num_cba_dci[10]; //uint8_t num_cba_dci[10];
/// allocated CBA RNTI /// allocated CBA RNTI
......
openair1/PHY/NR_UE_TRANSPORT/nr_ulsch_ue.c
View file @ 505d06e9
...@@ -31,6 +31,7 @@ ...@@ -31,6 +31,7 @@
*/ */
#include <stdint.h> #include <stdint.h>
#include "PHY/NR_REFSIG/dmrs_nr.h" #include "PHY/NR_REFSIG/dmrs_nr.h"
#include "PHY/NR_REFSIG/ptrs_nr.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_ue.h" #include "PHY/NR_UE_TRANSPORT/nr_transport_ue.h"
#include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h" #include "PHY/NR_UE_TRANSPORT/nr_transport_proto_ue.h"
#include "PHY/MODULATION/nr_modulation.h" #include "PHY/MODULATION/nr_modulation.h"
...@@ -105,19 +106,22 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -105,19 +106,22 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
int32_t **txdataF; int32_t **txdataF;
uint16_t start_sc, start_rb; uint16_t start_sc, start_rb;
int8_t Wf[2], Wt[2], l_prime[2], delta; int8_t Wf[2], Wt[2], l_prime[2], delta;
uint16_t n_dmrs, code_rate, number_dmrs_symbols; uint16_t n_dmrs, code_rate, number_dmrs_symbols, k;
uint8_t dmrs_type; uint8_t dmrs_type;
uint8_t mapping_type; uint8_t mapping_type;
int ap, start_symbol, Nid_cell, i; int ap, start_symbol, Nid_cell, i;
int sample_offsetF, N_RE_prime, N_PRB_oh; int sample_offsetF, N_RE_prime, N_PRB_oh;
uint16_t n_rnti; uint16_t n_rnti;
uint8_t data_existing =0; uint8_t data_existing =0;
uint8_t L_ptrs, K_ptrs; // PTRS parameters
uint16_t beta_ptrs; // PTRS parameter related to power control
NR_UE_ULSCH_t *ulsch_ue; NR_UE_ULSCH_t *ulsch_ue;
NR_UL_UE_HARQ_t *harq_process_ul_ue; NR_UL_UE_HARQ_t *harq_process_ul_ue;
NR_DL_FRAME_PARMS *frame_parms = &UE->frame_parms; NR_DL_FRAME_PARMS *frame_parms = &UE->frame_parms;
NR_UE_PUSCH *pusch_ue = UE->pusch_vars[thread_id][gNB_id]; NR_UE_PUSCH *pusch_ue = UE->pusch_vars[thread_id][gNB_id];
uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES]; uint8_t ulsch_input_buffer[MAX_ULSCH_PAYLOAD_BYTES];
ptrs_UplinkConfig_t *ptrs_Uplink_Config = &UE->pusch_config.dmrs_UplinkConfig.ptrs_UplinkConfig;
num_of_codewords = 1; // tmp assumption num_of_codewords = 1; // tmp assumption
n_rnti = 0x1234; n_rnti = 0x1234;
...@@ -281,6 +285,36 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -281,6 +285,36 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
/////////// ///////////
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/////////////////////////PTRS parameters' initialization/////////////////////////
///////////
int16_t mod_ptrs[(harq_process_ul_ue->nb_rb/2)*(NR_SYMBOLS_PER_SLOT-1)*2]; // assume maximum number of PTRS per pusch allocation
K_ptrs = 0; // just to avoid a warning
if (UE->ptrs_configured == 1) {
K_ptrs = get_K_ptrs(ptrs_Uplink_Config, harq_process_ul_ue->nb_rb);
L_ptrs = get_L_ptrs(ptrs_Uplink_Config, harq_process_ul_ue->mcs);
beta_ptrs = 1; // temp value until power control is implemented
ulsch_ue->ptrs_symbols = 0;
set_ptrs_symb_idx(&ulsch_ue->ptrs_symbols,
ptrs_Uplink_Config,
&UE->pusch_config.dmrs_UplinkConfig,
1,
harq_process_ul_ue->number_of_symbols,
start_symbol,
L_ptrs,
frame_parms->ofdm_symbol_size);
}
///////////
////////////////////////////////////////////////////////////////////////////////
/////////////////////////ULSCH layer mapping///////////////////////// /////////////////////////ULSCH layer mapping/////////////////////////
/////////// ///////////
...@@ -357,8 +391,8 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -357,8 +391,8 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
uint8_t k_prime=0; uint8_t k_prime=0;
uint8_t is_dmrs; uint8_t is_dmrs, is_ptrs;
uint16_t m=0, n=0, dmrs_idx=0, k=0; uint16_t m=0, n=0, dmrs_idx=0, ptrs_idx = 0;
for (l=start_symbol; l<start_symbol+harq_process_ul_ue->number_of_symbols; l++) { for (l=start_symbol; l<start_symbol+harq_process_ul_ue->number_of_symbols; l++) {
...@@ -371,6 +405,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -371,6 +405,7 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
sample_offsetF = l*frame_parms->ofdm_symbol_size + k; sample_offsetF = l*frame_parms->ofdm_symbol_size + k;
is_dmrs = 0; is_dmrs = 0;
is_ptrs = 0;
is_dmrs = is_dmrs_symbol(l, is_dmrs = is_dmrs_symbol(l,
k, k,
...@@ -383,9 +418,26 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -383,9 +418,26 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
mapping_type, mapping_type,
frame_parms->ofdm_symbol_size); frame_parms->ofdm_symbol_size);
if (UE->ptrs_configured == 1){
is_ptrs = is_ptrs_symbol(l,
k,
ulsch_ue->rnti,
harq_process_ul_ue->nb_rb,
harq_process_ul_ue->number_of_symbols,
ap,
K_ptrs,
ulsch_ue->ptrs_symbols,
start_sc,
frame_parms->ofdm_symbol_size,
UE->pusch_config.dmrs_UplinkConfig.pusch_dmrs_type,
ptrs_Uplink_Config);
}
if (is_dmrs == 1) { if (is_dmrs == 1) {
if (k == start_sc){
nr_modulation(pusch_dmrs[l][0], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated nr_modulation(pusch_dmrs[l][0], n_dmrs*2, DMRS_MOD_ORDER, mod_dmrs); // currently only codeword 0 is modulated. Qm = 2 as DMRS is QPSK modulated
}
((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = (Wt[l_prime[0]]*Wf[k_prime]*AMP*mod_dmrs[dmrs_idx<<1]) >> 15; ((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = (Wt[l_prime[0]]*Wf[k_prime]*AMP*mod_dmrs[dmrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = (Wt[l_prime[0]]*Wf[k_prime]*AMP*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15; ((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = (Wt[l_prime[0]]*Wf[k_prime]*AMP*mod_dmrs[(dmrs_idx<<1) + 1]) >> 15;
...@@ -401,9 +453,19 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE, ...@@ -401,9 +453,19 @@ void nr_ue_ulsch_procedures(PHY_VARS_NR_UE *UE,
k_prime++; k_prime++;
k_prime&=1; k_prime&=1;
n+=(k_prime)?0:1; n+=(k_prime)?0:1;
} else if (is_ptrs == 1) {
if (k == start_sc){
nr_modulation(pusch_dmrs[l][0], harq_process_ul_ue->nb_rb/2, DMRS_MOD_ORDER, mod_ptrs);
} }
else { ((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = (beta_ptrs*AMP*mod_ptrs[ptrs_idx<<1]) >> 15;
((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = (beta_ptrs*AMP*mod_ptrs[(ptrs_idx<<1) + 1]) >> 15;
ptrs_idx++;
} else {
((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = ((int16_t *) ulsch_ue->y)[m<<1]; ((int16_t*)txdataF[ap])[(sample_offsetF)<<1] = ((int16_t *) ulsch_ue->y)[m<<1];
((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = ((int16_t *) ulsch_ue->y)[(m<<1) + 1]; ((int16_t*)txdataF[ap])[((sample_offsetF)<<1) + 1] = ((int16_t *) ulsch_ue->y)[(m<<1) + 1];
......
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