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NR_PSS/NR_SSS

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This commit is contained in:
Guy De Souza
2018-04-02 14:08:52 +02:00
parent c4fd4dcab3
commit d7ab43cee5
14 changed files with 455 additions and 8 deletions
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cmake_targets/CMakeLists.txt
+2
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@@ -1238,6 +1238,8 @@ set(PHY_SRC_UE
# actual source
${OPENAIR1_DIR}/PHY/INIT/nr_init.c
${OPENAIR1_DIR}/PHY/INIT/nr_parms.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_pss.c
${OPENAIR1_DIR}/PHY/NR_TRANSPORT/nr_sss.c
${OPENAIR1_DIR}/PHY/TOOLS/file_output.c
${OPENAIR1_DIR}/PHY/TOOLS/cadd_vv.c
${OPENAIR1_DIR}/PHY/TOOLS/lte_dfts.c
openair1/PHY/INIT/nr_init.c
+3
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@@ -30,6 +30,9 @@ int phy_init_nr_gNB(nfapi_param_t* nfapi_params)
nfapi_params->subframe_config.dl_cyclic_prefix_type.value = 0; //NORMAL
nfapi_params->rf_config.dl_channel_bandwidth.value = 106;
nfapi_params->rf_config.ul_channel_bandwidth.value = 106;
nfapi_params->rf_config.tx_antenna_ports.value = 1;
nfapi_params->sch_config.physical_cell_id.value = 0;
return 0;
}
openair1/PHY/INIT/nr_parms.c
+9 -3
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@@ -36,7 +36,8 @@ int nr_init_frame_parms(nfapi_param_t nfapi_params,
#if DISABLE_LOG_X
printf("Initializing frame parms for mu %d, N_RB %d, Ncp %d\n",mu, N_RB, Ncp);
#else
LOG_I(PHY,"Initializing frame parms for mu %d, N_RB %d, Ncp %d\n",mu, N_RB, Ncp);
//LOG_I(PHY,"Initializing frame parms for mu %d, N_RB %d, Ncp %d\n",mu, N_RB, Ncp);
printf("Initializing frame parms for mu %d, N_RB %d, Ncp %d\n",mu, N_RB, Ncp);
#endif
if (Ncp == 1) //EXTENDED, to be modified after lte defs are properly linked
@@ -133,9 +134,14 @@ int nr_init_frame_parms(nfapi_param_t nfapi_params,
void nr_dump_frame_parms(NR_DL_FRAME_PARMS *frame_parms)
{
LOG_I(PHY,"frame_parms->scs=%d\n",frame_parms->subcarrier_spacing);
/*LOG_I(PHY,"frame_parms->scs=%d\n",frame_parms->subcarrier_spacing);
LOG_I(PHY,"frame_parms->ofdm_symbol_size=%d\n",frame_parms->ofdm_symbol_size);
LOG_I(PHY,"frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
LOG_I(PHY,"frame_parms->nb_prefix_samples0=%d\n",frame_parms->nb_prefix_samples0);
LOG_I(PHY,"frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);
LOG_I(PHY,"frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);*/
printf("frame_parms->scs=%d\n",frame_parms->subcarrier_spacing);
printf("frame_parms->ofdm_symbol_size=%d\n",frame_parms->ofdm_symbol_size);
printf("frame_parms->samples_per_tti=%d\n",frame_parms->samples_per_tti);
printf("frame_parms->nb_prefix_samples0=%d\n",frame_parms->nb_prefix_samples0);
printf("frame_parms->nb_prefix_samples=%d\n",frame_parms->nb_prefix_samples);
}
openair1/PHY/NR_REFSIG/nr_gen_mod_table.m
+32
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@@ -0,0 +1,32 @@
% octave script for generating NR specific modulated symbols
%
% 0 .. "0"
% 1,2 .. BPSK(0),BPSK(1)
% 2^15 /sqrt(2) K = 768;
K = 768*sqrt(2)/2^15;
% Amplitude for BPSK (\f$ 2^15 \times 1/\sqrt{2}\f$)
BPSK = 23170;
% BPSK
for b = 0:1
bpsk_table(b+1) = (1 - 2*b)*BPSK + 1j*(1-2*b)*BPSK;
end
table = round(K * [ 0; bpsk_table(:) ]);
save mod_table.mat table
table2 = zeros(1,length(table)*2);
table2(1:2:end) = real(table);
table2(2:2:end) = imag(table);
fd = fopen("nr_mod_table.h","w");
fprintf(fd,"#define MOD_TABLE_SIZE_SHORT %d\n", length(table)*2);
fprintf(fd,"#define MOD_TABLE_BPSK_OFFSET %d\n", 1);
fprintf(fd,"short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {");
fprintf(fd,"%d,",table2(1:end-1));
fprintf(fd,"%d};\n",table2(end));
fclose(fd);
openair1/PHY/NR_REFSIG/nr_mod_table.h
+24
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@@ -0,0 +1,24 @@
/*
* 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
*/
#define MOD_TABLE_SIZE_SHORT 6
#define MOD_TABLE_BPSK_OFFSET 1
short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {0,0,768,768,-768,-768};
openair1/PHY/NR_TRANSPORT/nr_pss.c
+85
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@@ -0,0 +1,85 @@
/*
* 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
*/
#include "../defs_NR.h"
#define NR_PSS_DEBUG
short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {0,0,768,768,-768,-768};
int nr_generate_pss( int16_t *d_pss,
int32_t **txdataF,
int16_t amp,
int16_t ssb_first_subcarrier,
uint8_t slot_offset,
nfapi_param_t nfapi_params,
NR_DL_FRAME_PARMS *frame_parms)
{
int i,n,m,k;
int16_t a, aa;
int16_t x[NR_PSS_LENGTH];
int16_t pss_mod[2* NR_PSS_LENGTH];
const int x_initial[7] = {0, 1, 1 , 0, 1, 1, 1};
uint8_t Nid2 = nfapi_params.sch_config.physical_cell_id.value % 3;
uint8_t Nsymb = (nfapi_params.subframe_config.dl_cyclic_prefix_type.value == 0)? 14 : 12;
// Binary sequence generation
for (i=0; i < 7; i++)
x[i] = x_initial[i];
for (i=0; i < (NR_PSS_LENGTH - 7); i++) {
x[i+7] = (x[i + 4] + x[i]) %2;
}
for (n=0; n < NR_PSS_LENGTH; n++) {
m = (n + 43*Nid2)%(NR_PSS_LENGTH);
d_pss[n] = x[m]; // 1 - 2*x[m] is taken into account in the mod_table (binary input)
}
// BPSK modulation and resource mapping
a = (nfapi_params.rf_config.tx_antenna_ports.value == 1) ? amp : (amp*ONE_OVER_SQRT2_Q15)>>15;
for (i = 0; i < NR_PSS_LENGTH; i++)
{
pss_mod[2*i] = nr_mod_table[ 2 * (MOD_TABLE_BPSK_OFFSET + d_pss[i]) ];
pss_mod[2*i + 1] = nr_mod_table[ 2 * (MOD_TABLE_BPSK_OFFSET + d_pss[i]) + 1];
}
for (aa = 0; aa < nfapi_params.rf_config.tx_antenna_ports.value; aa++)
{
// PSS occupies a predefined position (symbol 0, subcarriers 56-182) within the SSB block starting from
k = frame_parms->first_carrier_offset + ssb_first_subcarrier + 56; // to be retrieved from ssb scheduling function
for (m = 0; m < NR_PSS_LENGTH; m++) {
((int16_t*)txdataF[aa])[2*(slot_offset*Nsymb*frame_parms->ofdm_symbol_size + k)] = (a * pss_mod[2*m]) >> 15;
((int16_t*)txdataF[aa])[2*(slot_offset*Nsymb*frame_parms->ofdm_symbol_size + k) + 1] = (a * pss_mod[2*m + 1]) >> 15;
k+=1;
if (k >= frame_parms->ofdm_symbol_size) {
k++; //skip DC
k-=frame_parms->ofdm_symbol_size;
}
}
}
return (0);
}
openair1/PHY/NR_TRANSPORT/nr_sss.c
+98
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@@ -0,0 +1,98 @@
/*
* 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
*/
#include "../defs_NR.h"
extern short nr_mod_table[MOD_TABLE_SIZE_SHORT];
#define NR_SSS_DEBUG
int nr_generate_sss( int16_t *d_sss,
int32_t **txdataF,
int16_t amp,
int16_t ssb_first_subcarrier,
uint8_t slot_offset,
nfapi_param_t nfapi_params,
NR_DL_FRAME_PARMS *frame_parms)
{
int i,m,k;
int m0, m1;
int Nid, Nid1, Nid2;
int16_t a, aa;
int16_t x0[NR_SSS_LENGTH], x1[NR_SSS_LENGTH];
int16_t sss_mod[2* NR_SSS_LENGTH];
const int x0_initial[7] = { 1, 0, 0, 0, 0, 0, 0 };
const int x1_initial[7] = { 1, 0, 0, 0, 0, 0, 0 };
uint8_t Nsymb = (nfapi_params.subframe_config.dl_cyclic_prefix_type.value == 0)? 14 : 12;
// Binary sequence generation
Nid = nfapi_params.sch_config.physical_cell_id.value;
Nid2 = Nid % 3;
Nid1 = (Nid - Nid2)/3;
for ( i=0 ; i < 7 ; i++) {
x0[i] = x0_initial[i];
x1[i] = x1_initial[i];
}
for ( i=0 ; i < NR_SSS_LENGTH - 7 ; i++) {
x0[i+7] = (x0[i + 4] + x0[i]) % 2;
x1[i+7] = (x1[i + 1] + x1[i]) % 2;
}
m0 = 15*(Nid1/112) + (5*Nid2);
m1 = Nid1 % 112;
for (i = 0; i < NR_SSS_LENGTH ; i++) {
d_sss[i] = (1 - 2*x0[(i + m0) % NR_SSS_LENGTH] ) * (1 - 2*x1[(i + m1) % NR_SSS_LENGTH] );
if (d_sss[i] == -1) // This step -1 -> 0 is necessary to use nr_mod_table for the next step
d_sss[i] = 0;
}
// BPSK modulation and resource mapping
a = (nfapi_params.rf_config.tx_antenna_ports.value == 1) ? amp : (amp*ONE_OVER_SQRT2_Q15)>>15;
for (i = 0; i < NR_SSS_LENGTH; i++)
{
sss_mod[2*i] = nr_mod_table[ 2 * (MOD_TABLE_BPSK_OFFSET + d_sss[i]) ];
sss_mod[2*i + 1] = nr_mod_table[ 2 * (MOD_TABLE_BPSK_OFFSET + d_sss[i]) + 1];
}
for (aa = 0; aa < nfapi_params.rf_config.tx_antenna_ports.value; aa++)
{
// SSS occupies a predefined position (symbol 2, subcarriers 56-182) within the SSB block starting from
k = frame_parms->first_carrier_offset + ssb_first_subcarrier + 56; // to be retrieved from ssb scheduling function
for (m = 0; m < NR_SSS_LENGTH; m++) {
((int16_t*)txdataF[aa])[2*(slot_offset*Nsymb*frame_parms->ofdm_symbol_size + 2*frame_parms->ofdm_symbol_size + k)] = (a * sss_mod[2*m]) >> 15;
((int16_t*)txdataF[aa])[2*(slot_offset*Nsymb*frame_parms->ofdm_symbol_size + 2*frame_parms->ofdm_symbol_size + k) + 1] = (a * sss_mod[2*m + 1]) >> 15;
k+=1;
if (k >= frame_parms->ofdm_symbol_size) {
k++; //skip DC
k-=frame_parms->ofdm_symbol_size;
}
}
}
return (0);
}
openair1/PHY/defs_NR.h
+87
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@@ -0,0 +1,87 @@
/*
* 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
*/
#ifndef __INIT_DEFS_NR__H__
#define __INIT_DEFS_NR__H__
#define _GNU_SOURCE
#include <sched.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <linux/sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
#include <sys/sysinfo.h>
#include <malloc.h>
#include <string.h>
#include <math.h>
#include "types.h"
#include "../nfapi/open-nFAPI/nfapi/public_inc/nfapi_interface_nr_extension.h"
#include "assertions.h"
#include "impl_defs_nr.h"
#define MAX_NUM_SUBCARRIER_SPACING 5
#define NR_PSS_LENGTH 127
#define NR_SSS_LENGTH 127
#define ONE_OVER_SQRT2_Q15 23170
#define ONE_OVER_TWO_Q15 16384
#define MOD_TABLE_SIZE_SHORT 6
#define MOD_TABLE_BPSK_OFFSET 1
typedef enum {
NR_MU_0=0,
NR_MU_1,
NR_MU_2,
NR_MU_3,
NR_MU_4,
} nr_numerology_index_e;
typedef struct {
uint32_t subcarrier_spacing;
/// 3/4 sampling
uint8_t threequarter_fs;
/// Size of FFT
uint16_t ofdm_symbol_size;
/// Number of prefix samples in all but first symbol of slot
uint16_t nb_prefix_samples;
/// Number of prefix samples in first symbol of slot
uint16_t nb_prefix_samples0;
/// Carrier offset in FFT buffer for first RE in PRB0
uint16_t first_carrier_offset;
/// Number of samples in a subframe
uint32_t samples_per_tti;
/// Number of OFDM/SC-FDMA symbols in one slot
uint16_t symbols_per_slot;
/// Number of slots per subframe
uint16_t slots_per_subframe;
} NR_DL_FRAME_PARMS;
#endif
openair1/PHY/impl_defs_nr.h
+51
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@@ -0,0 +1,51 @@
/*
* 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
*/
#ifndef __PHY_IMPLEMENTATION_DEFS_LTE_H__
#define __PHY_IMPLEMENTATION_DEFS_LTE_H__
#include "types.h"
//#include "nfapi_interface.h"
//#include "defs.h"
#include "openair2/COMMON/platform_types.h"
typedef struct {
/// \brief Pointers (dynamic) to the received data in the time domain.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: ? [0..2*ofdm_symbol_size*frame_parms->symbols_per_tti[
int32_t **rxdata;
/// \brief Pointers (dynamic) to the received data in the frequency domain.
/// - first index: rx antenna [0..nb_antennas_rx[
/// - second index: ? [0..2*ofdm_symbol_size*frame_parms->symbols_per_tti[
int32_t **rxdataF;
/// \brief holds the transmit data in the frequency domain.
/// For IFFT_FPGA this points to the same memory as PHY_vars->rx_vars[a].RX_DMA_BUFFER. //?
/// - first index: eNB id [0..2] (hard coded)
/// - second index: tx antenna [0..14[ where 14 is the total supported antenna ports.
/// - third index: sample [0..]
int32_t **txdataF;
} NR_gNB_COMMON;
#endif
openair1/SCHED_NR/defs.h
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openair1/SCHED_NR/extern.h
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openair1/SCHED_NR/phy_procedures_nr_gNB.c
+46
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@@ -0,0 +1,46 @@
/*
* 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
*/
#include "PHY/defs_NR.h"
//#include "PHY/extern.h"
#include "SCHED/defs.h"
#include "SCHED/extern.h"
//#include "nfapi_interface.h"
//#include "fapi_l1.h"
#include "UTIL/LOG/log.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "T.h"
#include "assertions.h"
#include "msc.h"
#include <time.h>
#if defined(ENABLE_ITTI)
# include "intertask_interface.h"
#endif
void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int subframe) {
}
openair1/SCHED_NR/vars.h
View File
targets/RT/USER/nr-softmodem.c
+18 -5
View File
@@ -21,8 +21,6 @@
#include "nr-softmodem.h"
#include "PHY/types.h"
#include "../../nfapi/open-nFAPI/nfapi/public_inc/nfapi_interface_nr_extension.h"
//#include "PHY/defs.h"
#include "PHY/defs_NR.h"
//Temporary main function
@@ -52,11 +50,26 @@ void exit_fun(const char* s)
int main( int argc, char **argv )
{
nfapi_param_t nfapi_params;
NR_DL_FRAME_PARMS frame_parms;
NR_DL_FRAME_PARMS* frame_parms = malloc(sizeof(NR_DL_FRAME_PARMS));
int16_t amp;
//malloc to move
int16_t** txdataF = (int16_t **)malloc(2048*2*14*2*2* sizeof(int16_t));
int16_t* d_pss = malloc(NR_PSS_LENGTH * sizeof(int16_t));
int16_t *d_sss = malloc(NR_SSS_LENGTH * sizeof(int16_t));
//logInit();
phy_init_nr_gNB(&nfapi_params);
nr_init_frame_parms(nfapi_params, &frame_parms);
nr_dump_frame_parms(&frame_parms);
nr_init_frame_parms(nfapi_params, frame_parms);
nr_dump_frame_parms(frame_parms);
amp = 32767; //1_Q_15
//nr_generate_pss(d_pss, txdataF, amp, 0, 0, nfapi_params, frame_parms);
nr_generate_sss(d_sss, txdataF, amp, 0, 0, nfapi_params, frame_parms);
free(txdataF);
free(d_pss);
free(d_sss);
return 0;
}