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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: pusch.h
*
* Description: Physical uplink shared channel.
*
* Reference: 3GPP TS 36.211 version 10.0.0 Release 10 Sec. 5.3
*****************************************************************************/
#ifndef PUSCH_
#define PUSCH_
#include "srslte/config.h"
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#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/regs.h"
#include "srslte/phy/phch/dci.h"
#include "srslte/phy/phch/sch.h"
#include "srslte/phy/phch/pusch_cfg.h"
#include "srslte/phy/dft/dft_precoding.h"
#include "srslte/phy/ch_estimation/refsignal_ul.h"
#define SRSLTE_PUSCH_MAX_TDEC_ITERS 5
typedef struct {
enum {
SRSLTE_PUSCH_HOP_MODE_INTER_SF = 1,
SRSLTE_PUSCH_HOP_MODE_INTRA_SF = 0
} hop_mode;
uint32_t hopping_offset;
uint32_t n_sb;
} srslte_pusch_hopping_cfg_t;
typedef struct {
srslte_sequence_t seq[SRSLTE_NSUBFRAMES_X_FRAME];
uint32_t cell_id;
bool sequence_generated;
} srslte_pusch_user_t;
/* PUSCH object */
typedef struct SRSLTE_API {
srslte_cell_t cell;
bool is_ue;
uint32_t max_re;
srslte_dft_precoding_t dft_precoding;
/* buffers */
// void buffers are shared for tx and rx
cf_t *ce;
cf_t *z;
cf_t *d;
void *q;
void *g;
/* tx & rx objects */
srslte_modem_table_t mod[4];
srslte_sequence_t seq_type2_fo;
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// This is to generate the scrambling seq for multiple CRNTIs
srslte_pusch_user_t **users;
srslte_sequence_t tmp_seq;
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srslte_sch_t ul_sch;
bool shortened;
}srslte_pusch_t;
SRSLTE_API int srslte_pusch_init_ue(srslte_pusch_t *q,
uint32_t max_prb);
SRSLTE_API int srslte_pusch_init_enb(srslte_pusch_t *q,
uint32_t max_prb);
SRSLTE_API void srslte_pusch_free(srslte_pusch_t *q);
SRSLTE_API int srslte_pusch_set_cell(srslte_pusch_t *q,
srslte_cell_t cell);
SRSLTE_API int srslte_pusch_cfg(srslte_pusch_t *q,
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srslte_pusch_cfg_t *cfg,
srslte_ra_ul_grant_t *grant,
srslte_uci_cfg_t *uci_cfg,
srslte_pusch_hopping_cfg_t *hopping_cfg,
srslte_refsignal_srs_cfg_t *srs_cfg,
uint32_t tti,
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uint32_t rv_idx,
uint32_t current_tx_nb);
SRSLTE_API int srslte_pusch_set_rnti(srslte_pusch_t *q,
uint16_t rnti);
SRSLTE_API void srslte_pusch_free_rnti(srslte_pusch_t *q,
uint16_t rnti);
9 years ago
SRSLTE_API int srslte_pusch_encode(srslte_pusch_t *q,
srslte_pusch_cfg_t *cfg,
srslte_softbuffer_tx_t *softbuffer,
uint8_t *data,
srslte_uci_data_t uci_data,
uint16_t rnti,
cf_t *sf_symbols);
SRSLTE_API int srslte_pusch_decode(srslte_pusch_t *q,
srslte_pusch_cfg_t *cfg,
srslte_softbuffer_rx_t *softbuffer,
cf_t *sf_symbols,
cf_t *ce,
float noise_estimate,
uint16_t rnti,
uint8_t *data,
srslte_uci_data_t *uci_data);
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SRSLTE_API float srslte_pusch_average_noi(srslte_pusch_t *q);
SRSLTE_API uint32_t srslte_pusch_last_noi(srslte_pusch_t *q);
#endif