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PBCH generation layout

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This commit is contained in:
Guy De Souza
2018-05-17 09:42:16 +02:00
parent 5b970ac4a0
commit 382348adf4
10 changed files with 65 additions and 28 deletions
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openair1/PHY/NR_REFSIG/nr_gen_mod_table.m
+14 -4
View File
@@ -6,12 +6,22 @@
% Amplitude for BPSK (\f$ 2^15 \times 1/\sqrt{2}\f$)
BPSK = 23170;
% Amplitude for QPSK (\f$ 2^15 \times 1/\sqrt{2}\f$)
QPSK = 23170;
% BPSK
for b = 0:1
bpsk_table(b+1) = (1 - 2*b)*BPSK + 1j*(1-2*b)*BPSK;
end
table = [ 0; bpsk_table(:) ];
%% QPSK
for r=0:1 %0 -- 1 LS
for j=0:1 %0 -- 1 MS
qpsk_table(2*r+j+1) = ((1-r*2)*QPSK + 1j*(1-2*j)*QPSK);
end
end
table = [ 0; bpsk_table(:); qpsk_table(:) ];
save mod_table.mat table
@@ -20,10 +30,10 @@ 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,"#define NR_MOD_TABLE_SIZE_SHORT %d\n", length(table)*2);
fprintf(fd,"#define NR_MOD_TABLE_BPSK_OFFSET %d\n", 1);
fprintf(fd,"#define NR_MOD_TABLE_QPSK_OFFSET %d\n", 3);
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
+4 -3
View File
@@ -1,3 +1,4 @@
#define MOD_TABLE_SIZE_SHORT 6
#define MOD_TABLE_BPSK_OFFSET 1
short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {0,0,23170,23170,-23170,-23170};
#define NR_MOD_TABLE_SIZE_SHORT 14
#define NR_MOD_TABLE_BPSK_OFFSET 1
#define NR_MOD_TABLE_QPSK_OFFSET 3
short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {0,0,23170,23170,-23170,-23170,23170,23170,23170,-23170,-23170,23170,-23170,-23170};
openair1/PHY/NR_TRANSPORT/nr_pbch.c
+26 -5
View File
@@ -20,7 +20,7 @@
*/
/*! \file PHY/NR_TRANSPORT/nr_pbch.c
* \brief Top-level routines for generating and decoding the PBCH/BCH physical/transport channel V15.1 03/2018
* \brief Top-level routines for generating the PBCH/BCH physical/transport channel V15.1 03/2018
* \author Guy De Souza
* \date 2018
* \version 0.1
@@ -35,7 +35,7 @@
//#define DEBUG_PBCH
short nr_mod_table[MOD_TABLE_SIZE_SHORT] = {0,0,23170,23170,-23170,-23170};
extern short *nr_mod_table;
int nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
int32_t **txdataF,
@@ -53,8 +53,8 @@ int nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
/// BPSK modulation
for (m=0; m<NR_PBCH_DMRS_LENGTH; m++) {
mod_dmrs[m<<1] = nr_mod_table[((1 + ((gold_pbch_dmrs[m>>5]&(1<<(m&0x1f)))>>(m&0x1f)))<<1)];
mod_dmrs[(m<<1)+1] = nr_mod_table[((1 + ((gold_pbch_dmrs[m>>5]&(1<<(m&0x1f)))>>(m&0x1f)))<<1) + 1];
mod_dmrs[m<<1] = nr_mod_table[((NR_MOD_TABLE_BPSK_OFFSET + ((gold_pbch_dmrs[m>>5]&(1<<(m&0x1f)))>>(m&0x1f)))<<1)];
mod_dmrs[(m<<1)+1] = nr_mod_table[((NR_MOD_TABLE_BPSK_OFFSET + ((gold_pbch_dmrs[m>>5]&(1<<(m&0x1f)))>>(m&0x1f)))<<1) + 1];
#ifdef DEBUG_PBCH
printf("m %d mod_dmrs %d %d\n", m, mod_dmrs[2*m], mod_dmrs[2*m+1]);
#endif
@@ -121,5 +121,26 @@ int nr_generate_pbch_dmrs(uint32_t *gold_pbch_dmrs,
#ifdef DEBUG_PBCH
write_output("txdataF.m", "txdataF", txdataF[0], frame_parms->samples_per_frame_wCP>>1, 1, 1);
#endif
return (0);
return 0;
}
#define NR_PBCH_LENGTH 1000
int nr_generate_pbch(NR_gNB_PBCH *pbch,
uint8_t *pbch_pdu,
int32_t **txdataF,
int16_t amp,
uint8_t ssb_start_symbol,
uint8_t nu,
nfapi_config_request_t* config,
NR_DL_FRAME_PARMS *frame_parms)
{
int m,k,l;
int a, aa;
int16_t mod_payload[2 * NR_PBCH_LENGTH];
LOG_I(PHY, "PBCH generation started\n");
return 0;
}
openair1/PHY/NR_TRANSPORT/nr_pss.c
-2
View File
@@ -23,8 +23,6 @@
//#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,
openair1/PHY/NR_TRANSPORT/nr_sss.c
-2
View File
@@ -21,8 +21,6 @@
#include "PHY/defs_gNB.h"
extern short nr_mod_table[MOD_TABLE_SIZE_SHORT];
//#define NR_SSS_DEBUG
int nr_generate_sss( int16_t *d_sss,
openair1/PHY/defs_RU.h
+1
View File
@@ -35,6 +35,7 @@
#define MAX_BANDS_PER_RRU 4
#define MAX_NUM_RU_PER_gNB MAX_NUM_RU_PER_eNB
#ifdef OCP_FRAMEWORK
openair1/PHY/defs_gNB.h
+14 -10
View File
@@ -36,6 +36,10 @@
#include "defs_nr_common.h"
typedef struct {
uint8_t pbch_d[100];
} NR_gNB_PBCH;
typedef struct {
/// \brief Pointers (dynamic) to the received data in the time domain.
/// - first index: rx antenna [0..nb_antennas_rx[
@@ -169,9 +173,9 @@ typedef struct gNB_proc_t_s {
typedef struct {
// common measurements
//! estimated noise power (linear)
unsigned int n0_power[MAX_NUM_RU_PER_eNB];
unsigned int n0_power[MAX_NUM_RU_PER_gNB];
//! estimated noise power (dB)
unsigned short n0_power_dB[MAX_NUM_RU_PER_eNB];
unsigned short n0_power_dB[MAX_NUM_RU_PER_gNB];
//! total estimated noise power (linear)
unsigned int n0_power_tot;
//! estimated avg noise power (dB)
@@ -179,9 +183,9 @@ typedef struct {
//! estimated avg noise power (dB)
short n0_power_tot_dBm;
//! estimated avg noise power per RB per RX ant (lin)
unsigned short n0_subband_power[MAX_NUM_RU_PER_eNB][100];
unsigned short n0_subband_power[MAX_NUM_RU_PER_gNB][100];
//! estimated avg noise power per RB per RX ant (dB)
unsigned short n0_subband_power_dB[MAX_NUM_RU_PER_eNB][100];
unsigned short n0_subband_power_dB[MAX_NUM_RU_PER_gNB][100];
//! estimated avg noise power per RB (dB)
short n0_subband_power_tot_dB[100];
//! estimated avg noise power per RB (dBm)
@@ -199,17 +203,17 @@ typedef struct {
int rx_correlation_dB[NUMBER_OF_UE_MAX][2];
/// Wideband CQI (= SINR)
int wideband_cqi[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_eNB];
int wideband_cqi[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_gNB];
/// Wideband CQI in dB (= SINR dB)
int wideband_cqi_dB[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_eNB];
int wideband_cqi_dB[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_gNB];
/// Wideband CQI (sum of all RX antennas, in dB)
char wideband_cqi_tot[NUMBER_OF_UE_MAX];
/// Subband CQI per RX antenna and RB (= SINR)
int subband_cqi[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_eNB][100];
int subband_cqi[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_gNB][100];
/// Total Subband CQI and RB (= SINR)
int subband_cqi_tot[NUMBER_OF_UE_MAX][100];
/// Subband CQI in dB and RB (= SINR dB)
int subband_cqi_dB[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_eNB][100];
int subband_cqi_dB[NUMBER_OF_UE_MAX][MAX_NUM_RU_PER_gNB][100];
/// Total Subband CQI and RB
int subband_cqi_tot_dB[NUMBER_OF_UE_MAX][100];
/// PRACH background noise level
@@ -226,7 +230,7 @@ typedef struct PHY_VARS_gNB_s {
int single_thread_flag;
int abstraction_flag;
int num_RU;
RU_t *RU_list[MAX_NUM_RU_PER_eNB];
RU_t *RU_list[MAX_NUM_RU_PER_gNB];
/// Ethernet parameters for northbound midhaul interface
eth_params_t eth_params_n;
/// Ethernet parameters for fronthaul interface
@@ -262,7 +266,7 @@ typedef struct PHY_VARS_gNB_s {
NR_gNB_COMMON common_vars;
LTE_eNB_UCI uci_vars[NUMBER_OF_UE_MAX];
LTE_eNB_SRS srs_vars[NUMBER_OF_UE_MAX];
LTE_eNB_PBCH pbch;
NR_gNB_PBCH pbch;
LTE_eNB_PUSCH *pusch_vars[NUMBER_OF_UE_MAX];
LTE_eNB_PRACH prach_vars;
LTE_eNB_DLSCH_t *dlsch[NUMBER_OF_UE_MAX][2]; // Nusers times two spatial streams
openair1/PHY/defs_nr_common.h
+3 -2
View File
@@ -51,8 +51,9 @@
#define ONE_OVER_SQRT2_Q15 23170
#define ONE_OVER_TWO_Q15 16384
#define MOD_TABLE_SIZE_SHORT 6
#define MOD_TABLE_BPSK_OFFSET 1
#define NR_MOD_TABLE_SIZE_SHORT 14
#define NR_MOD_TABLE_BPSK_OFFSET 1
#define NR_MOD_TABLE_QPSK_OFFSET 3
typedef enum {
NR_MU_0=0,
openair1/SCHED_NR/phy_procedures_nr_gNB.c
+1
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@@ -138,6 +138,7 @@ void nr_common_signal_procedures (PHY_VARS_gNB *gNB,int frame, int subframe) {
nr_generate_pss(gNB->d_pss, txdataF, AMP, ssb_start_symbol, cfg, fp);
nr_generate_sss(gNB->d_sss, txdataF, AMP_OVER_2, ssb_start_symbol, cfg, fp);
nr_generate_pbch_dmrs(gNB->nr_gold_pbch_dmrs[n_hf][ssb_index],txdataF, AMP_OVER_2, ssb_start_symbol, nu, cfg, fp);
nr_generate_pbch(&gNB->pbch, pbch_pdu, txdataF, AMP_OVER_2, ssb_start_symbol, nu, cfg, fp);
}
}
targets/RT/USER/nr-softmodem.c
+2
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@@ -94,6 +94,8 @@ unsigned short config_frames[4] = {2,9,11,13};
// current status is that every UE has a DL scope for a SINGLE eNB (gnb_id=0)
// at eNB 0, an UL scope for every UE
short nr_mod_table[NR_MOD_TABLE_SIZE_SHORT] = {0,0,23170,23170,-23170,-23170,23170,23170,23170,-23170,-23170,23170,-23170,-23170};
FD_lte_phy_scope_ue *form_ue[NUMBER_OF_UE_MAX];
FD_lte_phy_scope_enb *form_enb[MAX_NUM_CCs][NUMBER_OF_UE_MAX];
FD_stats_form *form_stats=NULL,*form_stats_l2=NULL;