mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
4 years ago
|
/**
|
||
|
|
*
|
||
|
|
* \section COPYRIGHT
|
||
|
|
*
|
||
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
||
|
|
*
|
||
|
|
* By using this file, you agree to the terms and conditions set
|
||
|
|
* forth in the LICENSE file which can be found at the top level of
|
||
|
|
* the distribution.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
* File: pcfich.h
|
||
|
|
*
|
||
|
|
* Description: Physical control format indicator channel
|
||
|
|
*
|
||
|
|
* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 6.7
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#ifndef SRSRAN_PCFICH_H
|
||
|
|
#define SRSRAN_PCFICH_H
|
||
|
|
|
||
|
|
#include "srsran/config.h"
|
||
|
|
#include "srsran/phy/ch_estimation/chest_dl.h"
|
||
|
|
#include "srsran/phy/common/phy_common.h"
|
||
|
|
#include "srsran/phy/mimo/layermap.h"
|
||
|
|
#include "srsran/phy/mimo/precoding.h"
|
||
|
|
#include "srsran/phy/modem/demod_soft.h"
|
||
|
|
#include "srsran/phy/modem/mod.h"
|
||
|
|
#include "srsran/phy/phch/regs.h"
|
||
|
|
#include "srsran/phy/scrambling/scrambling.h"
|
||
|
|
|
||
|
|
#define PCFICH_CFI_LEN 32
|
||
|
|
#define PCFICH_RE PCFICH_CFI_LEN / 2
|
||
|
|
|
||
|
|
/* PCFICH object */
|
||
|
|
typedef struct SRSRAN_API {
|
||
|
|
srsran_cell_t cell;
|
||
|
|
int nof_symbols;
|
||
|
|
|
||
|
|
uint32_t nof_rx_antennas;
|
||
|
|
|
||
|
|
/* handler to REGs resource mapper */
|
||
|
|
srsran_regs_t* regs;
|
||
|
|
|
||
|
|
/* buffers */
|
||
|
|
cf_t ce[SRSRAN_MAX_PORTS][SRSRAN_MAX_PORTS][PCFICH_RE];
|
||
|
|
cf_t symbols[SRSRAN_MAX_PORTS][PCFICH_RE];
|
||
|
|
cf_t x[SRSRAN_MAX_PORTS][PCFICH_RE];
|
||
|
|
cf_t d[PCFICH_RE];
|
||
|
|
|
||
|
|
// cfi table in floats
|
||
|
|
float cfi_table_float[3][PCFICH_CFI_LEN];
|
||
|
|
|
||
|
|
/* bit message */
|
||
|
|
uint8_t data[PCFICH_CFI_LEN];
|
||
|
|
|
||
|
|
/* received soft bits */
|
||
|
|
float data_f[PCFICH_CFI_LEN];
|
||
|
|
|
||
|
|
/* tx & rx objects */
|
||
|
|
srsran_modem_table_t mod;
|
||
|
|
srsran_sequence_t seq[SRSRAN_NOF_SF_X_FRAME];
|
||
|
|
|
||
|
|
} srsran_pcfich_t;
|
||
|
|
|
||
|
|
SRSRAN_API int srsran_pcfich_init(srsran_pcfich_t* q, uint32_t nof_rx_antennas);
|
||
|
|
|
||
|
|
SRSRAN_API int srsran_pcfich_set_cell(srsran_pcfich_t* q, srsran_regs_t* regs, srsran_cell_t cell);
|
||
|
|
|
||
|
|
SRSRAN_API void srsran_pcfich_free(srsran_pcfich_t* q);
|
||
|
|
|
||
|
|
SRSRAN_API int srsran_pcfich_decode(srsran_pcfich_t* q,
|
||
|
|
srsran_dl_sf_cfg_t* sf,
|
||
|
|
srsran_chest_dl_res_t* channel,
|
||
|
|
cf_t* sf_symbols[SRSRAN_MAX_PORTS],
|
||
|
|
float* corr_result);
|
||
|
|
|
||
|
|
SRSRAN_API int srsran_pcfich_encode(srsran_pcfich_t* q, srsran_dl_sf_cfg_t* sf, cf_t* sf_symbols[SRSRAN_MAX_PORTS]);
|
||
|
|
|
||
|
|
#endif // SRSRAN_PCFICH_H
|