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157 lines
5.2 KiB
C
157 lines
5.2 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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/******************************************************************************
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* File: enb_ul.h
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*
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* Description: ENB uplink object.
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*
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* This module is a frontend to all the uplink data and control
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* channel processing modules for the ENB receiver side.
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*
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* Reference:
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*****************************************************************************/
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#ifndef ENBUL_H
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#define ENBUL_H
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#include <stdbool.h>
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#include "srslte/phy/common/phy_common.h"
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#include "srslte/phy/dft/ofdm.h"
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#include "srslte/phy/ch_estimation/chest_ul.h"
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#include "srslte/phy/phch/prach.h"
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#include "srslte/phy/phch/pusch.h"
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#include "srslte/phy/phch/pusch_cfg.h"
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#include "srslte/phy/phch/ra.h"
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#include "srslte/phy/utils/vector.h"
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#include "srslte/phy/utils/debug.h"
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#include "srslte/config.h"
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typedef struct {
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uint32_t n_prb_lowest;
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uint32_t n_dmrs;
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} srslte_enb_ul_phich_info_t;
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typedef struct {
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bool uci_cfg_en;
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bool srs_cfg_en;
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srslte_uci_cfg_t uci_cfg;
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srslte_refsignal_srs_cfg_t srs_cfg;
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srslte_pucch_sched_t pucch_sched;
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} srslte_enb_ul_user_t;
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typedef struct SRSLTE_API {
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srslte_cell_t cell;
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cf_t *sf_symbols;
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cf_t *ce;
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srslte_ofdm_t fft;
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srslte_chest_ul_t chest;
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srslte_pusch_t pusch;
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srslte_pucch_t pucch;
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srslte_prach_t prach;
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srslte_pusch_cfg_t pusch_cfg;
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srslte_pusch_hopping_cfg_t hopping_cfg;
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// Configuration for each user
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srslte_enb_ul_user_t **users;
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} srslte_enb_ul_t;
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typedef struct {
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uint16_t rnti;
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srslte_ra_ul_dci_t grant;
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srslte_dci_location_t location;
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uint32_t rv_idx;
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uint32_t current_tx_nb;
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uint8_t *data;
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srslte_softbuffer_rx_t *softbuffer;
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bool needs_pdcch;
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} srslte_enb_ul_pusch_t;
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/* This function shall be called just after the initial synchronization */
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SRSLTE_API int srslte_enb_ul_init(srslte_enb_ul_t *q,
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cf_t *in_buffer,
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uint32_t max_prb);
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SRSLTE_API void srslte_enb_ul_free(srslte_enb_ul_t *q);
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SRSLTE_API int srslte_enb_ul_set_cell(srslte_enb_ul_t *q,
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srslte_cell_t cell,
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srslte_prach_cfg_t* prach_cfg,
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srslte_refsignal_dmrs_pusch_cfg_t *pusch_cfg,
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srslte_pusch_hopping_cfg_t *hopping_cfg,
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srslte_pucch_cfg_t *pucch_cfg);
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SRSLTE_API int srslte_enb_ul_add_rnti(srslte_enb_ul_t *q,
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uint16_t rnti);
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SRSLTE_API void srslte_enb_ul_rem_rnti(srslte_enb_ul_t *q,
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uint16_t rnti);
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SRSLTE_API int srslte_enb_ul_cfg_ue(srslte_enb_ul_t *q, uint16_t rnti,
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srslte_uci_cfg_t *uci_cfg,
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srslte_pucch_sched_t *pucch_sched,
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srslte_refsignal_srs_cfg_t *srs_cfg);
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SRSLTE_API void srslte_enb_ul_fft(srslte_enb_ul_t *q,
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cf_t *signal_buffer);
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SRSLTE_API int srslte_enb_ul_get_pucch(srslte_enb_ul_t *q,
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uint16_t rnti,
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uint32_t pdcch_n_cce,
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uint32_t sf_rx,
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srslte_uci_data_t *uci_data);
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SRSLTE_API int srslte_enb_ul_get_pusch(srslte_enb_ul_t *q,
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srslte_ra_ul_grant_t *grant,
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srslte_softbuffer_rx_t *softbuffer,
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uint16_t rnti,
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uint32_t rv_idx,
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uint32_t current_tx_nb,
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uint8_t *data,
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srslte_uci_data_t *uci_data,
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uint32_t tti);
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SRSLTE_API int srslte_enb_ul_detect_prach(srslte_enb_ul_t *q,
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uint32_t tti,
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uint32_t freq_offset,
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cf_t *signal,
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uint32_t *indices,
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float *offsets,
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float *peak2avg);
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#endif
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