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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: enb_ul.h
*
* Description: ENB uplink object.
*
* This module is a frontend to all the uplink data and control
* channel processing modules for the ENB receiver side.
*
* Reference:
*****************************************************************************/
#ifndef ENBUL_H
#define ENBUL_H
#include <stdbool.h>
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#include "srslte/phy/common/phy_common.h"
#include "srslte/phy/dft/ofdm.h"
#include "srslte/phy/ch_estimation/chest_ul.h"
#include "srslte/phy/phch/prach.h"
#include "srslte/phy/phch/pusch.h"
#include "srslte/phy/phch/pusch_cfg.h"
#include "srslte/phy/phch/ra.h"
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#include "srslte/phy/utils/vector.h"
#include "srslte/phy/utils/debug.h"
#include "srslte/config.h"
typedef struct {
uint32_t n_prb_lowest;
uint32_t n_dmrs;
} srslte_enb_ul_phich_info_t;
typedef struct {
bool uci_cfg_en;
bool srs_cfg_en;
srslte_uci_cfg_t uci_cfg;
srslte_refsignal_srs_cfg_t srs_cfg;
srslte_pucch_sched_t pucch_sched;
} srslte_enb_ul_user_t;
typedef struct SRSLTE_API {
srslte_cell_t cell;
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cf_t *sf_symbols;
cf_t *ce;
srslte_ofdm_t fft;
srslte_chest_ul_t chest;
srslte_pusch_t pusch;
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srslte_pucch_t pucch;
srslte_prach_t prach;
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srslte_pusch_cfg_t pusch_cfg;
srslte_pusch_hopping_cfg_t hopping_cfg;
// Configuration for each user
srslte_enb_ul_user_t **users;
} srslte_enb_ul_t;
typedef struct {
uint16_t rnti;
srslte_ra_ul_dci_t grant;
srslte_dci_location_t location;
uint32_t rv_idx;
uint32_t current_tx_nb;
uint8_t *data;
srslte_softbuffer_rx_t *softbuffer;
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bool needs_pdcch;
} srslte_enb_ul_pusch_t;
/* This function shall be called just after the initial synchronization */
SRSLTE_API int srslte_enb_ul_init(srslte_enb_ul_t *q,
cf_t *in_buffer,
uint32_t max_prb);
SRSLTE_API void srslte_enb_ul_free(srslte_enb_ul_t *q);
SRSLTE_API int srslte_enb_ul_set_cell(srslte_enb_ul_t *q,
srslte_cell_t cell,
srslte_prach_cfg_t* prach_cfg,
srslte_refsignal_dmrs_pusch_cfg_t *pusch_cfg,
srslte_pusch_hopping_cfg_t *hopping_cfg,
srslte_pucch_cfg_t *pucch_cfg);
SRSLTE_API int srslte_enb_ul_add_rnti(srslte_enb_ul_t *q,
uint16_t rnti);
SRSLTE_API void srslte_enb_ul_rem_rnti(srslte_enb_ul_t *q,
uint16_t rnti);
SRSLTE_API int srslte_enb_ul_cfg_ue(srslte_enb_ul_t *q, uint16_t rnti,
srslte_uci_cfg_t *uci_cfg,
srslte_pucch_sched_t *pucch_sched,
srslte_refsignal_srs_cfg_t *srs_cfg);
SRSLTE_API void srslte_enb_ul_fft(srslte_enb_ul_t *q);
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SRSLTE_API int srslte_enb_ul_get_pucch(srslte_enb_ul_t *q,
uint16_t rnti,
uint32_t pdcch_n_cce,
uint32_t sf_rx,
srslte_uci_data_t *uci_data);
SRSLTE_API int srslte_enb_ul_get_pusch(srslte_enb_ul_t *q,
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srslte_ra_ul_grant_t *grant,
srslte_softbuffer_rx_t *softbuffer,
uint16_t rnti,
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uint32_t rv_idx,
uint32_t current_tx_nb,
uint8_t *data,
srslte_uci_data_t *uci_data,
uint32_t tti);
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SRSLTE_API int srslte_enb_ul_detect_prach(srslte_enb_ul_t *q,
uint32_t tti,
uint32_t freq_offset,
cf_t *signal,
uint32_t *indices,
float *offsets,
float *peak2avg);
#endif