mirror of https://github.com/PentHertz/srsLTE.git
136 lines
4.6 KiB
C
136 lines
4.6 KiB
C
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2015 Software Radio Systems Limited
|
|
*
|
|
* \section LICENSE
|
|
*
|
|
* This file is part of the srsLTE library.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* File: pdsch.h
|
|
*
|
|
* Description: Physical downlink shared channel
|
|
*
|
|
* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 6.4
|
|
*****************************************************************************/
|
|
|
|
#ifndef PDSCH_
|
|
#define PDSCH_
|
|
|
|
#include "srslte/config.h"
|
|
#include "srslte/phy/common/phy_common.h"
|
|
#include "srslte/phy/mimo/precoding.h"
|
|
#include "srslte/phy/mimo/layermap.h"
|
|
#include "srslte/phy/modem/mod.h"
|
|
#include "srslte/phy/modem/demod_soft.h"
|
|
#include "srslte/phy/scrambling/scrambling.h"
|
|
#include "srslte/phy/phch/dci.h"
|
|
#include "srslte/phy/phch/regs.h"
|
|
#include "srslte/phy/phch/sch.h"
|
|
#include "srslte/phy/phch/pdsch_cfg.h"
|
|
|
|
typedef struct {
|
|
srslte_sequence_t seq[SRSLTE_NSUBFRAMES_X_FRAME];
|
|
bool sequence_generated;
|
|
} srslte_pdsch_user_t;
|
|
|
|
/* PDSCH object */
|
|
typedef struct SRSLTE_API {
|
|
srslte_cell_t cell;
|
|
|
|
uint32_t nof_rx_antennas;
|
|
|
|
uint32_t max_re;
|
|
|
|
/* buffers */
|
|
// void buffers are shared for tx and rx
|
|
cf_t *ce[SRSLTE_MAX_PORTS][SRSLTE_MAX_PORTS];
|
|
cf_t *symbols[SRSLTE_MAX_PORTS];
|
|
cf_t *x[SRSLTE_MAX_PORTS];
|
|
cf_t *d;
|
|
void *e;
|
|
|
|
/* tx & rx objects */
|
|
srslte_modem_table_t mod[4];
|
|
|
|
// This is to generate the scrambling seq for multiple CRNTIs
|
|
srslte_pdsch_user_t **users;
|
|
|
|
srslte_sch_t dl_sch;
|
|
|
|
} srslte_pdsch_t;
|
|
|
|
SRSLTE_API int srslte_pdsch_init(srslte_pdsch_t *q,
|
|
srslte_cell_t cell);
|
|
|
|
SRSLTE_API int srslte_pdsch_init_multi(srslte_pdsch_t *q,
|
|
srslte_cell_t cell,
|
|
uint32_t nof_rx_antennas);
|
|
|
|
SRSLTE_API void srslte_pdsch_free(srslte_pdsch_t *q);
|
|
|
|
SRSLTE_API int srslte_pdsch_set_rnti(srslte_pdsch_t *q,
|
|
uint16_t rnti);
|
|
|
|
SRSLTE_API void srslte_pdsch_free_rnti(srslte_pdsch_t *q,
|
|
uint16_t rnti);
|
|
|
|
SRSLTE_API float srslte_pdsch_coderate(uint32_t tbs,
|
|
uint32_t nof_re);
|
|
|
|
SRSLTE_API int srslte_pdsch_cfg(srslte_pdsch_cfg_t *cfg,
|
|
srslte_cell_t cell,
|
|
srslte_ra_dl_grant_t *grant,
|
|
uint32_t cfi,
|
|
uint32_t sf_idx,
|
|
uint32_t rvidx);
|
|
|
|
SRSLTE_API int srslte_pdsch_encode(srslte_pdsch_t *q,
|
|
srslte_pdsch_cfg_t *cfg,
|
|
srslte_softbuffer_tx_t *softbuffer,
|
|
uint8_t *data,
|
|
uint16_t rnti,
|
|
cf_t *sf_symbols[SRSLTE_MAX_PORTS]);
|
|
|
|
SRSLTE_API int srslte_pdsch_decode(srslte_pdsch_t *q,
|
|
srslte_pdsch_cfg_t *cfg,
|
|
srslte_softbuffer_rx_t *softbuffer,
|
|
cf_t *sf_symbols,
|
|
cf_t *ce[SRSLTE_MAX_PORTS],
|
|
float noise_estimate,
|
|
uint16_t rnti,
|
|
uint8_t *data);
|
|
|
|
SRSLTE_API int srslte_pdsch_decode_multi(srslte_pdsch_t *q,
|
|
srslte_pdsch_cfg_t *cfg,
|
|
srslte_softbuffer_rx_t *softbuffer,
|
|
cf_t *sf_symbols[SRSLTE_MAX_PORTS],
|
|
cf_t *ce[SRSLTE_MAX_PORTS][SRSLTE_MAX_PORTS],
|
|
float noise_estimate,
|
|
uint16_t rnti,
|
|
uint8_t *data);
|
|
|
|
SRSLTE_API float srslte_pdsch_average_noi(srslte_pdsch_t *q);
|
|
|
|
SRSLTE_API uint32_t srslte_pdsch_last_noi(srslte_pdsch_t *q);
|
|
|
|
#endif
|