5g-team
/
srsRAN_4G
mirror of https://github.com/pvnis/srsRAN_4G.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Added DFT Transform Precoding. Added PUSCH matlab test. Added UCI PUCCH coding

Browse Source
master
ismagom 10 years ago
parent 908e4f0373
commit 6b8d019fce
11 changed files with 215 additions and 168 deletions
Show Stats Download Patch File Download Diff File

26
lte/phy/include/liblte/phy/phch/cqi.h
Unescape Escape View File

@ -58,15 +58,37 @@ typedef struct LIBLTE_API {
uint32_t position_subband; // L-bit width
} cqi_ue_subband_t;
/* Table 5.2.3.3.1-1: Fields for channel quality information feedback for wideband CQI reports
(transmission mode 1, transmission mode 2, transmission mode 3, transmission mode 7 and
transmission mode 8 configured without PMI/RI reporting).
This is for PUCCH Format 2 reports
*/
typedef struct LIBLTE_API {
uint8_t wideband_cqi; // 4-bit width
} cqi_format2_wideband_t;
typedef struct LIBLTE_API {
uint8_t subband_cqi; // 4-bit width
uint8_t subband_label; // 1- or 2-bit width
} cqi_format2_subband_t;
LIBLTE_API void cqi_hl_subband_pack(cqi_hl_subband_t *msg,
LIBLTE_API int cqi_hl_subband_pack(cqi_hl_subband_t *msg,
uint32_t N,
uint8_t *buff,
uint32_t buff_len);
LIBLTE_API void cqi_ue_subband_pack(cqi_ue_subband_t *msg,
LIBLTE_API int cqi_ue_subband_pack(cqi_ue_subband_t *msg,
uint32_t L,
uint8_t *buff,
uint32_t buff_len);
LIBLTE_API int cqi_format2_wideband_pack(cqi_format2_wideband_t *msg,
uint8_t *buff,
uint32_t buff_len);
LIBLTE_API int cqi_format2_subband_pack(cqi_format2_subband_t *msg,
uint8_t *buff,
uint32_t buff_len);
#endif // CQI_

20
lte/phy/include/liblte/phy/phch/pusch.h
Unescape Escape View File

@ -26,7 +26,7 @@
*/
#ifndef PUCH_
#ifndef PUSCH_
#define PUSCH_
#include "liblte/config.h"
@ -39,12 +39,13 @@
#include "liblte/phy/phch/regs.h"
#include "liblte/phy/phch/sch.h"
#include "liblte/phy/phch/harq.h"
#include "liblte/phy/filter/dft_precoding.h"
#define TDEC_MAX_ITERATIONS 5
typedef _Complex float cf_t;
/* PDSCH object */
/* PUSCH object */
typedef struct LIBLTE_API {
lte_cell_t cell;
@ -52,11 +53,14 @@ typedef struct LIBLTE_API {
bool rnti_is_set;
uint16_t rnti;
dft_precoding_t dft_precoding;
precoding_t equalizer;
/* buffers */
// void buffers are shared for tx and rx
cf_t *ce[MAX_PORTS];
cf_t *pusch_symbols[MAX_PORTS];
cf_t *pusch_x[MAX_PORTS];
cf_t *ce;
cf_t *pusch_z;
cf_t *pusch_d;
void *pusch_q;
@ -84,7 +88,7 @@ LIBLTE_API int pusch_set_rnti(pusch_t *q,
LIBLTE_API int pusch_encode(pusch_t *q,
uint8_t *data,
cf_t *sf_symbols[MAX_PORTS],
cf_t *sf_symbols,
uint32_t nsubframe,
harq_t *harq_process,
uint32_t rv_idx);
@ -92,14 +96,14 @@ LIBLTE_API int pusch_encode(pusch_t *q,
LIBLTE_API int pusch_uci_encode(pusch_t *q,
uint8_t *data,
uci_data_t uci_data,
cf_t *sf_symbols[MAX_PORTS],
cf_t *sf_symbols,
uint32_t subframe,
harq_t *harq_process,
uint32_t rv_idx);
LIBLTE_API int pusch_decode(pusch_t *q,
cf_t *sf_symbols,
cf_t *ce[MAX_PORTS],
cf_t *ce,
float noise_estimate,
uint8_t *data,
uint32_t nsubframe,

2
lte/phy/include/liblte/phy/phch/sch.h
Unescape Escape View File

@ -65,7 +65,7 @@ typedef struct LIBLTE_API {
crc_t crc_tb;
crc_t crc_cb;
uci_cqi_t uci_cqi;
uci_cqi_pusch_t uci_cqi;
} sch_t;

21
lte/phy/include/liblte/phy/phch/uci.h
Unescape Escape View File

@ -34,13 +34,16 @@
#include "liblte/phy/phch/harq.h"
#include "liblte/phy/fec/crc.h"
#define MAX_CQI_LEN 512
#define MAX_CQI_LEN_PUSCH 512
#define MAX_CQI_LEN_PUCCH 13
#define CQI_CODED_PUCCH_B 20
typedef struct LIBLTE_API {
crc_t crc;
uint8_t tmp_cqi[MAX_CQI_LEN];
uint8_t encoded_cqi[3*MAX_CQI_LEN];
} uci_cqi_t;
uint8_t tmp_cqi[MAX_CQI_LEN_PUSCH];
uint8_t encoded_cqi[3*MAX_CQI_LEN_PUSCH];
} uci_cqi_pusch_t;
typedef struct LIBLTE_API {
uint8_t *uci_cqi;
@ -54,11 +57,11 @@ typedef struct LIBLTE_API {
float beta_ack;
} uci_data_t;
LIBLTE_API int uci_cqi_init(uci_cqi_t *q);
LIBLTE_API int uci_cqi_init(uci_cqi_pusch_t *q);
LIBLTE_API void uci_cqi_free(uci_cqi_t *q);
LIBLTE_API void uci_cqi_free(uci_cqi_pusch_t *q);
LIBLTE_API int uci_encode_cqi(uci_cqi_t *q,
LIBLTE_API int uci_encode_cqi_pusch(uci_cqi_pusch_t *q,
uint8_t *cqi_data,
uint32_t cqi_len,
float beta,
@ -66,6 +69,10 @@ LIBLTE_API int uci_encode_cqi(uci_cqi_t *q,
harq_t *harq_process,
uint8_t *q_bits);
LIBLTE_API int uci_encode_cqi_pucch(uint8_t *cqi_data,
uint32_t cqi_len,
uint8_t b_bits[CQI_CODED_PUCCH_B]);
LIBLTE_API int uci_encode_ack(uint8_t data,
uint32_t O_cqi,
float beta,

14
lte/phy/include/liblte/phy/phy.h
Unescape Escape View File

@ -71,6 +71,7 @@
#include "liblte/phy/fec/rm_turbo.h"
#include "liblte/phy/filter/filter2d.h"
#include "liblte/phy/filter/dft_precoding.h"
#include "liblte/phy/io/binsource.h"
#include "liblte/phy/io/filesink.h"
@ -86,17 +87,18 @@
#include "liblte/phy/mimo/precoding.h"
#include "liblte/phy/mimo/layermap.h"
#include "liblte/phy/phch/regs.h"
#include "liblte/phy/phch/cqi.h"
#include "liblte/phy/phch/dci.h"
#include "liblte/phy/phch/pdcch.h"
#include "liblte/phy/phch/pdsch.h"
#include "liblte/phy/phch/harq.h"
#include "liblte/phy/phch/pbch.h"
#include "liblte/phy/phch/pcfich.h"
#include "liblte/phy/phch/pdcch.h"
#include "liblte/phy/phch/pdsch.h"
#include "liblte/phy/phch/phich.h"
#include "liblte/phy/phch/sch.h"
#include "liblte/phy/phch/pusch.h"
#include "liblte/phy/phch/ra.h"
#include "liblte/phy/phch/regs.h"
#include "liblte/phy/phch/sch.h"
#include "liblte/phy/phch/uci.h"
#include "liblte/phy/ue/ue_sync.h"

24
lte/phy/lib/phch/src/cqi.c
Unescape Escape View File

@ -41,17 +41,37 @@
#include "liblte/phy/utils/debug.h"
void cqi_hl_subband_pack(cqi_hl_subband_t *msg, uint32_t N, uint8_t *buff, uint32_t buff_len)
int cqi_hl_subband_pack(cqi_hl_subband_t *msg, uint32_t N, uint8_t *buff, uint32_t buff_len)
{
uint8_t *body_ptr = buff;
bit_pack(msg->wideband_cqi, &body_ptr, 4);
bit_pack(msg->subband_diff_cqi, &body_ptr, 2*N);
return 4+2*N;
}
void cqi_ue_subband_pack(cqi_ue_subband_t *msg, uint32_t L, uint8_t *buff, uint32_t buff_len)
int cqi_ue_subband_pack(cqi_ue_subband_t *msg, uint32_t L, uint8_t *buff, uint32_t buff_len)
{
uint8_t *body_ptr = buff;
bit_pack(msg->wideband_cqi, &body_ptr, 4);
bit_pack(msg->subband_diff_cqi, &body_ptr, 2);
bit_pack(msg->subband_diff_cqi, &body_ptr, L);
return 4+2+L;
}
int cqi_format2_wideband_pack(cqi_format2_wideband_t *msg, uint8_t *buff, uint32_t buff_len)
{
uint8_t *body_ptr = buff;
bit_pack(msg->wideband_cqi, &body_ptr, 4);
return 4;
}
int cqi_format2_subband_pack(cqi_format2_subband_t *msg, uint8_t *buff, uint32_t buff_len)
{
uint8_t *body_ptr = buff;
bit_pack(msg->subband_cqi, &body_ptr, 4);
bit_pack(msg->subband_label, &body_ptr, 1);
return 4+1;
}

95
lte/phy/lib/phch/src/pusch.c
Unescape Escape View File

@ -41,7 +41,7 @@
#include "liblte/phy/utils/bit.h"
#include "liblte/phy/utils/debug.h"
#include "liblte/phy/utils/vector.h"
#include "liblte/phy/filter/dft_precoding.h"
#define MAX_PUSCH_RE(cp) (2 * CP_NSYMB(cp) * 12)
@ -118,6 +118,14 @@ int pusch_init(pusch_t *q, lte_cell_t cell) {
sch_init(&q->dl_sch);
dft_precoding_init(&q->dft_precoding, cell.nof_prb);
/* This is for equalization at receiver */
if (precoding_init(&q->equalizer, SF_LEN_RE(cell.nof_prb, cell.cp))) {
fprintf(stderr, "Error initializing precoding\n");
goto clean;
}
q->rnti_is_set = false;
// Allocate floats for reception (LLRs). Buffer casted to uint8_t for transmission
@ -136,20 +144,14 @@ int pusch_init(pusch_t *q, lte_cell_t cell) {
goto clean;
}
for (i = 0; i < q->cell.nof_ports; i++) {
q->ce[i] = vec_malloc(sizeof(cf_t) * q->max_symbols);
if (!q->ce[i]) {
goto clean;
}
q->pusch_x[i] = vec_malloc(sizeof(cf_t) * q->max_symbols);
if (!q->pusch_x[i]) {
q->ce = vec_malloc(sizeof(cf_t) * q->max_symbols);
if (!q->ce) {
goto clean;
}
q->pusch_symbols[i] = vec_malloc(sizeof(cf_t) * q->max_symbols);
if (!q->pusch_symbols[i]) {
q->pusch_z = vec_malloc(sizeof(cf_t) * q->max_symbols);
if (!q->pusch_z) {
goto clean;
}
}
ret = LIBLTE_SUCCESS;
}
@ -172,18 +174,17 @@ void pusch_free(pusch_t *q) {
if (q->pusch_g) {
free(q->pusch_g);
}
for (i = 0; i < q->cell.nof_ports; i++) {
if (q->ce[i]) {
free(q->ce[i]);
}
if (q->pusch_x[i]) {
free(q->pusch_x[i]);
}
if (q->pusch_symbols[i]) {
free(q->pusch_symbols[i]);
if (q->ce) {
free(q->ce);
}
if (q->pusch_z) {
free(q->pusch_z);
}
dft_precoding_free(&q->dft_precoding);
precoding_free(&q->equalizer);
for (i = 0; i < NSUBFRAMES_X_FRAME; i++) {
sequence_free(&q->seq_pusch[i]);
}
@ -215,13 +216,12 @@ int pusch_set_rnti(pusch_t *q, uint16_t rnti) {
/** Decodes the PUSCH from the received symbols
*/
int pusch_decode(pusch_t *q, cf_t *sf_symbols, cf_t *ce[MAX_PORTS], float noise_estimate, uint8_t *data, uint32_t subframe,
int pusch_decode(pusch_t *q, cf_t *sf_symbols, cf_t *ce, float noise_estimate, uint8_t *data, uint32_t subframe,
harq_t *harq_process, uint32_t rv_idx)
{
/* Set pointers for layermapping & precoding */
uint32_t i, n;
cf_t *x[MAX_LAYERS];
uint32_t n;
uint32_t nof_symbols, nof_bits, nof_bits_e;
if (q != NULL &&
@ -233,34 +233,31 @@ int pusch_decode(pusch_t *q, cf_t *sf_symbols, cf_t *ce[MAX_PORTS], float noise_
if (q->rnti_is_set) {
nof_bits = harq_process->mcs.tbs;
nof_symbols = harq_process->prb_alloc.re_sf[subframe];
nof_symbols = 2*harq_process->prb_alloc.slot[0].nof_prb*RE_X_RB*(CP_NSYMB(q->cell.cp)-1);
nof_bits_e = nof_symbols * lte_mod_bits_x_symbol(harq_process->mcs.mod);
INFO("Decoding PUSCH SF: %d, Mod %s, NofBits: %d, NofSymbols: %d, NofBitsE: %d, rv_idx: %d\n",
subframe, lte_mod_string(harq_process->mcs.mod), nof_bits, nof_symbols, nof_bits_e, rv_idx);
/* number of layers equals number of ports */
for (i = 0; i < q->cell.nof_ports; i++) {
x[i] = q->pusch_x[i];
}
memset(&x[q->cell.nof_ports], 0, sizeof(cf_t*) * (MAX_LAYERS - q->cell.nof_ports));
/* extract symbols */
n = pusch_get(q, sf_symbols, q->pusch_symbols[0], &harq_process->prb_alloc, subframe);
n = pusch_get(q, sf_symbols, q->pusch_d, &harq_process->prb_alloc, subframe);
if (n != nof_symbols) {
fprintf(stderr, "Error expecting %d symbols but got %d\n", nof_symbols, n);
return LIBLTE_ERROR;
}
/* extract channel estimates */
for (i = 0; i < q->cell.nof_ports; i++) {
n = pusch_get(q, ce[i], q->ce[i], &harq_process->prb_alloc, subframe);
n = pusch_get(q, ce, q->ce, &harq_process->prb_alloc, subframe);
if (n != nof_symbols) {
fprintf(stderr, "Error expecting %d symbols but got %d\n", nof_symbols, n);
return LIBLTE_ERROR;
}
}
predecoding_single(&q->equalizer, q->pusch_d, q->ce, q->pusch_z,
nof_symbols, noise_estimate);
dft_predecoding(&q->dft_precoding, q->pusch_z, q->pusch_d,
harq_process->prb_alloc.slot[0].nof_prb, harq_process->N_symb_ul);
/* demodulate symbols
* The MAX-log-MAP algorithm used in turbo decoding is unsensitive to SNR estimation,
@ -278,13 +275,12 @@ int pusch_decode(pusch_t *q, cf_t *sf_symbols, cf_t *ce[MAX_PORTS], float noise_
fprintf(stderr, "Must call pusch_set_rnti() before calling pusch_decode()\n");
return LIBLTE_ERROR;
}
} else {
return LIBLTE_ERROR_INVALID_INPUTS;
}
}
int pusch_qncode(pusch_t *q, uint8_t *data, cf_t *sf_symbols[MAX_PORTS], uint32_t subframe,
int pusch_encode(pusch_t *q, uint8_t *data, cf_t *sf_symbols, uint32_t subframe,
harq_t *harq_process, uint32_t rv_idx)
{
uci_data_t uci_data;
@ -295,13 +291,10 @@ int pusch_qncode(pusch_t *q, uint8_t *data, cf_t *sf_symbols[MAX_PORTS], uint32_
/** Converts the PUSCH data bits to symbols mapped to the slot ready for transmission
*/
int pusch_uci_encode(pusch_t *q, uint8_t *data, uci_data_t uci_data,
cf_t *sf_symbols[MAX_PORTS], uint32_t subframe,
cf_t *sf_symbols, uint32_t subframe,
harq_t *harq_process, uint32_t rv_idx)
{
int i;
uint32_t nof_symbols, nof_bits_ulsch, nof_bits_e;
/* Set pointers for layermapping & precoding */
cf_t *x[MAX_LAYERS];
int ret = LIBLTE_ERROR_INVALID_INPUTS;
if (q != NULL &&
@ -311,12 +304,6 @@ int pusch_uci_encode(pusch_t *q, uint8_t *data, uci_data_t uci_data,
{
if (q->rnti_is_set) {
for (i=0;i<q->cell.nof_ports;i++) {
if (sf_symbols[i] == NULL) {
return LIBLTE_ERROR_INVALID_INPUTS;
}
}
nof_bits_ulsch = harq_process->mcs.tbs;
nof_symbols = 2*harq_process->prb_alloc.slot[0].nof_prb*RE_X_RB*(CP_NSYMB(q->cell.cp)-1);
nof_bits_e = nof_symbols * lte_mod_bits_x_symbol(harq_process->mcs.mod);
@ -340,12 +327,6 @@ int pusch_uci_encode(pusch_t *q, uint8_t *data, uci_data_t uci_data,
INFO("Encoding PUSCH SF: %d, Mod %s, NofBits: %d, NofSymbols: %d, NofBitsE: %d, rv_idx: %d\n",
subframe, lte_mod_string(harq_process->mcs.mod), nof_bits_ulsch, nof_symbols, nof_bits_e, rv_idx);
/* number of layers equals number of ports */
for (i = 0; i < q->cell.nof_ports; i++) {
x[i] = q->pusch_x[i];
}
memset(&x[q->cell.nof_ports], 0, sizeof(cf_t*) * (MAX_LAYERS - q->cell.nof_ports));
if (ulsch_uci_encode(&q->dl_sch, data, uci_data, q->pusch_g, harq_process, rv_idx, q->pusch_q))
{
fprintf(stderr, "Error encoding TB\n");
@ -356,11 +337,11 @@ int pusch_uci_encode(pusch_t *q, uint8_t *data, uci_data_t uci_data,
mod_modulate(&q->mod[harq_process->mcs.mod], (uint8_t*) q->pusch_q, q->pusch_d, nof_bits_e);
/* mapping to resource elements */
dft_precoding(&q->dft_precoding, q->pusch_d, q->pusch_z,
harq_process->prb_alloc.slot[0].nof_prb, harq_process->N_symb_ul);
for (i = 0; i < q->cell.nof_ports; i++) {
pusch_put(q, q->pusch_symbols[i], sf_symbols[i], &harq_process->prb_alloc, subframe);
}
/* mapping to resource elements */
pusch_put(q, q->pusch_z, sf_symbols, &harq_process->prb_alloc, subframe);
ret = LIBLTE_SUCCESS;
} else {

2
lte/phy/lib/phch/src/sch.c
Unescape Escape View File

@ -467,7 +467,7 @@ int ulsch_uci_encode(sch_t *q, uint8_t *data, uci_data_t uci_data, uint8_t *g_bi
// Encode CQI
if (uci_data.uci_cqi_len > 0) {
ret = uci_encode_cqi(&q->uci_cqi, uci_data.uci_cqi, uci_data.uci_cqi_len, uci_data.beta_cqi,
ret = uci_encode_cqi_pusch(&q->uci_cqi, uci_data.uci_cqi, uci_data.uci_cqi_len, uci_data.beta_cqi,
Q_prime_ri, harq_process, g_bits);
if (ret < 0) {
return ret;

61
lte/phy/lib/phch/src/uci.c
Unescape Escape View File

@ -44,7 +44,7 @@
#include "liblte/phy/utils/debug.h"
/* Table 5.2.2.6.4-1: Basis sequence for (32, O) code */
static uint8_t M_basis_seq[32][11]={
static uint8_t M_basis_seq_pusch[32][11]={
{1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1 },
{1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1 },
{1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1 },
@ -79,14 +79,38 @@ static uint8_t M_basis_seq[32][11]={
{1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
};
int uci_cqi_init(uci_cqi_t *q) {
static uint8_t M_basis_seq_pucch[20][13]={
{1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0},
{1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0},
{1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1},
{1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1},
{1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1},
{1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1},
{1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1},
{1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1},
{1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1},
{1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1},
{1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1},
{1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1},
{1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1},
{1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1},
{1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1},
{1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1},
{1, 1, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1},
{1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 1, 1},
{1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0},
{1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0},
};
int uci_cqi_init(uci_cqi_pusch_t *q) {
if (crc_init(&q->crc, LTE_CRC8, 8)) {
return LIBLTE_ERROR;
}
return LIBLTE_SUCCESS;
}
void uci_cqi_free(uci_cqi_t *q) {
void uci_cqi_free(uci_cqi_pusch_t *q) {
}
@ -112,9 +136,9 @@ static uint32_t Q_prime_cqi(uint32_t O, float beta, uint32_t Q_prime_ri, harq_t
/* Encode UCI CQI/PMI for payloads equal or lower to 11 bits (Sec 5.2.2.6.4)
*/
int encode_cqi_short(uci_cqi_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_bits, uint32_t Q)
int encode_cqi_short(uci_cqi_pusch_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_bits, uint32_t Q)
{
if (nof_bits < MAX_CQI_LEN &&
if (nof_bits < MAX_CQI_LEN_PUSCH &&
q != NULL &&
data != NULL &&
q_bits != NULL)
@ -122,7 +146,7 @@ int encode_cqi_short(uci_cqi_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_
for (int i=0;i<32;i++) {
q->encoded_cqi[i] = 0;
for (int n=0;n<nof_bits;n++) {
q->encoded_cqi[i] += (data[n] * M_basis_seq[i][n]);
q->encoded_cqi[i] += (data[n] * M_basis_seq_pusch[i][n]);
}
}
@ -137,11 +161,11 @@ int encode_cqi_short(uci_cqi_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_
/* Encode UCI CQI/PMI for payloads greater than 11 bits (go through CRC, conv coder and rate match)
*/
int encode_cqi_long(uci_cqi_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_bits, uint32_t Q)
int encode_cqi_long(uci_cqi_pusch_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_bits, uint32_t Q)
{
convcoder_t encoder;
if (nof_bits + 8 < MAX_CQI_LEN &&
if (nof_bits + 8 < MAX_CQI_LEN_PUSCH &&
q != NULL &&
data != NULL &&
q_bits != NULL)
@ -173,9 +197,27 @@ int encode_cqi_long(uci_cqi_t *q, uint8_t *data, uint32_t nof_bits, uint8_t *q_b
}
}
/* Encode UCI CQI/PMI as described in 5.2.3.3 of 36.212
*/
int uci_encode_cqi_pucch(uint8_t *cqi_data, uint32_t cqi_len, uint8_t b_bits[CQI_CODED_PUCCH_B])
{
if (cqi_len <= MAX_CQI_LEN_PUCCH) {
for (uint32_t i=0;i<CQI_CODED_PUCCH_B;i++) {
uint64_t x=0;
for (uint32_t n=0;n<cqi_len;n++) {
x += cqi_data[n]*M_basis_seq_pucch[n][i];
}
b_bits[i] = (uint8_t) (x%2);
}
return LIBLTE_SUCCESS;
} else {
return LIBLTE_ERROR_INVALID_INPUTS;
}
}
/* Encode UCI CQI/PMI as described in 5.2.2.6 of 36.212
*/
int uci_encode_cqi(uci_cqi_t *q, uint8_t *cqi_data, uint32_t cqi_len, float beta, uint32_t Q_prime_ri,
int uci_encode_cqi_pusch(uci_cqi_pusch_t *q, uint8_t *cqi_data, uint32_t cqi_len, float beta, uint32_t Q_prime_ri,
harq_t *harq_process, uint8_t *q_bits)
{
@ -313,3 +355,4 @@ int uci_encode_ri(uint8_t data, uint32_t O_cqi, float beta, harq_t *harq_process
return (int) Qprime;
}

1
lte/phy/lib/phch/test/CMakeLists.txt
Unescape Escape View File

@ -134,6 +134,7 @@ ADD_EXECUTABLE(pusch_test pusch_test.c)
TARGET_LINK_LIBRARIES(pusch_test lte_phy)
BuildMex(MEXNAME ulsch_encode SOURCES ulsch_encode_test_mex.c LIBRARIES lte_phy liblte_mex)
BuildMex(MEXNAME pusch_encode SOURCES pusch_encode_test_mex.c LIBRARIES lte_phy liblte_mex)

65
lte/phy/lib/phch/test/pusch_test.c
Unescape Escape View File

@ -50,20 +50,19 @@ lte_mod_t modulation = LTE_QPSK;
uint32_t rv_idx = 0;
void usage(char *prog) {
printf("Usage: %s [cpsrnfvmt] -l TBS \n", prog);
printf("Usage: %s [csrnfvmt] -l TBS \n", prog);
printf("\t-m modulation (1: BPSK, 2: QPSK, 3: QAM16, 4: QAM64) [Default BPSK]\n");
printf("\t-c cell id [Default %d]\n", cell.id);
printf("\t-s subframe [Default %d]\n", subframe);
printf("\t-r rv_idx [Default %d]\n", rv_idx);
printf("\t-f cfi [Default %d]\n", cfi);
printf("\t-p cell.nof_ports [Default %d]\n", cell.nof_ports);
printf("\t-n cell.nof_prb [Default %d]\n", cell.nof_prb);
printf("\t-v [set verbose to debug, default none]\n");
}
void parse_args(int argc, char **argv) {
int opt;
while ((opt = getopt(argc, argv, "lcpnfvmtsr")) != -1) {
while ((opt = getopt(argc, argv, "lcnfvmtsr")) != -1) {
switch(opt) {
case 'm':
switch(atoi(argv[optind])) {
@ -94,9 +93,6 @@ void parse_args(int argc, char **argv) {
case 'l':
tbs = atoi(argv[optind]);
break;
case 'p':
cell.nof_ports = atoi(argv[optind]);
break;
case 'n':
cell.nof_prb = atoi(argv[optind]);
break;
@ -115,11 +111,10 @@ void parse_args(int argc, char **argv) {
int main(int argc, char **argv) {
pusch_t pusch;
uint32_t i, j;
uint8_t *data = NULL;
cf_t *ce[MAX_PORTS];
cf_t *ce;
uint32_t nof_re;
cf_t *slot_symbols[MAX_PORTS];
cf_t *sf_symbols;
int ret = -1;
struct timeval t[3];
ra_mcs_t mcs;
@ -134,27 +129,19 @@ int main(int argc, char **argv) {
mcs.mod = modulation;
prb_alloc.slot[0].nof_prb = 1;
//for (i=0;i<prb_alloc.slot[0].nof_prb;i++) {
// prb_alloc.slot[0].prb_idx[i] = true;
//}
memcpy(&prb_alloc.slot[1], &prb_alloc.slot[0], sizeof(ra_prb_slot_t));
/* init memory */
for (i=0;i<cell.nof_ports;i++) {
ce[i] = malloc(sizeof(cf_t) * nof_re);
if (!ce[i]) {
ce = malloc(sizeof(cf_t) * nof_re);
if (!ce) {
perror("malloc");
goto quit;
}
for (j=0;j<nof_re;j++) {
ce[i][j] = 1;
}
slot_symbols[i] = calloc(sizeof(cf_t) , nof_re);
if (!slot_symbols[i]) {
sf_symbols = calloc(sizeof(cf_t) , nof_re);
if (!sf_symbols) {
perror("malloc");
goto quit;
}
}
data = malloc(sizeof(uint8_t) * mcs.tbs);
if (!data) {
@ -178,7 +165,7 @@ int main(int argc, char **argv) {
goto quit;
}
for (i=0;i<mcs.tbs;i++) {
for (uint32_t i=0;i<mcs.tbs;i++) {
data[i] = 1;
}
@ -188,7 +175,7 @@ int main(int argc, char **argv) {
printf("Encoding rv_idx=%d\n",rv_idx);
uint8_t tmp[20];
for (i=0;i<20;i++) {
for (uint32_t i=0;i<20;i++) {
tmp[i] = 1;
}
uci_data_t uci_data;
@ -206,35 +193,17 @@ int main(int argc, char **argv) {
uci_data.uci_ack = 1;
uint32_t nof_symbols = 12*harq_process.prb_alloc.slot[0].nof_prb*RE_X_RB;
uint32_t nof_bits_e = nof_symbols * lte_mod_bits_x_symbol(harq_process.mcs.mod);
bzero(pusch.pusch_q, nof_bits_e*sizeof(uint8_t));
if (ulsch_uci_encode(&pusch.dl_sch, data, uci_data, pusch.pusch_g, &harq_process, 0, pusch.pusch_q))
{
if (pusch_uci_encode(&pusch, data, uci_data, sf_symbols, subframe, &harq_process, 0)) {
fprintf(stderr, "Error encoding TB\n");
exit(-1);
}
if (rv_idx > 0) {
if (ulsch_uci_encode(&pusch.dl_sch, data, uci_data, pusch.pusch_g, &harq_process, rv_idx, pusch.pusch_q))
{
if (pusch_uci_encode(&pusch, data, uci_data, sf_symbols, subframe, &harq_process, rv_idx)) {
fprintf(stderr, "Error encoding TB\n");
exit(-1);
}
}
vec_fprint_b(stdout, pusch.pusch_q, nof_bits_e);
/* combine outputs */
for (i=0;i<cell.nof_ports;i++) {
for (j=0;j<nof_re;j++) {
if (i > 0) {
slot_symbols[0][j] += slot_symbols[i][j];
}
ce[i][j] = 1;
}
}
gettimeofday(&t[1], NULL);
@ -255,13 +224,11 @@ quit:
pusch_free(&pusch);
harq_free(&harq_process);
for (i=0;i<cell.nof_ports;i++) {
if (ce[i]) {
free(ce[i]);
}
if (slot_symbols[i]) {
free(slot_symbols[i]);
if (ce) {
free(ce);
}
if (sf_symbols) {
free(sf_symbols);
}
if (data) {
free(data);

Write Preview
Loading…
Cancel
Save