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190 lines
6.5 KiB
C
190 lines
6.5 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_dl.h
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*
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* Description: ENB downlink object.
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*
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* This module is a frontend to all the downlink data and control
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* channel processing modules for the ENB transmitter side.
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*
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* Reference:
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*****************************************************************************/
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#ifndef ENBDL_H
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#define ENBDL_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/sync/pss.h"
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#include "srslte/phy/sync/sss.h"
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#include "srslte/phy/ch_estimation/refsignal_dl.h"
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#include "srslte/phy/phch/dci.h"
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#include "srslte/phy/phch/pbch.h"
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#include "srslte/phy/phch/pcfich.h"
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#include "srslte/phy/phch/pdcch.h"
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#include "srslte/phy/phch/pdsch.h"
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#include "srslte/phy/phch/pdsch_cfg.h"
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#include "srslte/phy/phch/phich.h"
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#include "srslte/phy/phch/ra.h"
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#include "srslte/phy/phch/regs.h"
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#include "srslte/phy/enb/enb_ul.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 SRSLTE_API {
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srslte_cell_t cell;
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cf_t *sf_symbols[SRSLTE_MAX_PORTS];
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cf_t *slot1_symbols[SRSLTE_MAX_PORTS];
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srslte_ofdm_t ifft[SRSLTE_MAX_PORTS];
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srslte_pbch_t pbch;
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srslte_pcfich_t pcfich;
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srslte_regs_t regs;
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srslte_pdcch_t pdcch;
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srslte_pdsch_t pdsch;
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srslte_phich_t phich;
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srslte_refsignal_t csr_signal;
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srslte_pdsch_cfg_t pdsch_cfg;
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srslte_ra_dl_dci_t dl_dci;
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srslte_dci_format_t dci_format;
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uint32_t cfi;
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cf_t pss_signal[SRSLTE_PSS_LEN];
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float sss_signal0[SRSLTE_SSS_LEN];
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float sss_signal5[SRSLTE_SSS_LEN];
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float tx_amp;
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uint8_t tmp[1024*128];
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} srslte_enb_dl_t;
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typedef struct {
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uint16_t rnti;
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srslte_dci_format_t dci_format;
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srslte_ra_dl_dci_t grant;
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srslte_dci_location_t location;
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srslte_softbuffer_tx_t *softbuffers[SRSLTE_MAX_TB];
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uint8_t *data[SRSLTE_MAX_TB];
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} srslte_enb_dl_pdsch_t;
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typedef struct {
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uint16_t rnti;
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uint8_t ack;
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uint32_t n_prb_lowest;
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uint32_t n_dmrs;
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} srslte_enb_dl_phich_t;
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/* This function shall be called just after the initial synchronization */
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SRSLTE_API int srslte_enb_dl_init(srslte_enb_dl_t *q,
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cf_t *out_buffer[SRSLTE_MAX_PORTS],
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uint32_t max_prb);
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SRSLTE_API void srslte_enb_dl_free(srslte_enb_dl_t *q);
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SRSLTE_API int srslte_enb_dl_set_cell(srslte_enb_dl_t *q,
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srslte_cell_t cell);
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SRSLTE_API void srslte_enb_dl_set_cfi(srslte_enb_dl_t *q,
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uint32_t cfi);
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SRSLTE_API void srslte_enb_dl_set_amp(srslte_enb_dl_t *q,
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float amp);
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SRSLTE_API void srslte_enb_dl_clear_sf(srslte_enb_dl_t *q);
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SRSLTE_API void srslte_enb_dl_put_sync(srslte_enb_dl_t *q,
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uint32_t sf_idx);
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SRSLTE_API void srslte_enb_dl_put_refs(srslte_enb_dl_t *q,
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uint32_t sf_idx);
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SRSLTE_API void srslte_enb_dl_put_mib(srslte_enb_dl_t *q,
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uint32_t tti);
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SRSLTE_API void srslte_enb_dl_put_pcfich(srslte_enb_dl_t *q,
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uint32_t sf_idx);
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SRSLTE_API void srslte_enb_dl_put_phich(srslte_enb_dl_t *q,
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uint8_t ack,
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uint32_t n_prb_lowest,
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uint32_t n_dmrs,
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uint32_t sf_idx);
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SRSLTE_API void srslte_enb_dl_put_base(srslte_enb_dl_t *q,
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uint32_t tti);
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SRSLTE_API void srslte_enb_dl_gen_signal(srslte_enb_dl_t *q);
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SRSLTE_API int srslte_enb_dl_add_rnti(srslte_enb_dl_t *q,
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uint16_t rnti);
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SRSLTE_API void srslte_enb_dl_rem_rnti(srslte_enb_dl_t *q,
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uint16_t rnti);
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SRSLTE_API int srslte_enb_dl_put_pdsch(srslte_enb_dl_t *q,
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srslte_ra_dl_grant_t *grant,
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srslte_softbuffer_tx_t *softbuffer[SRSLTE_MAX_CODEWORDS],
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uint16_t rnti,
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int rv_idx[SRSLTE_MAX_CODEWORDS],
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uint32_t sf_idx,
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uint8_t *data[SRSLTE_MAX_CODEWORDS],
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srslte_mimo_type_t mimo_type);
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SRSLTE_API int srslte_enb_dl_put_pdcch_dl(srslte_enb_dl_t *q,
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srslte_ra_dl_dci_t *grant,
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srslte_dci_format_t format,
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srslte_dci_location_t location,
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uint16_t rnti,
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uint32_t sf_idx);
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SRSLTE_API int srslte_enb_dl_put_pdcch_ul(srslte_enb_dl_t *q,
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srslte_ra_ul_dci_t *grant,
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srslte_dci_location_t location,
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uint16_t rnti,
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uint32_t sf_idx);
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SRSLTE_API void srslte_enb_dl_save_signal(srslte_enb_dl_t *q,
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srslte_softbuffer_tx_t *softbuffer,
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uint8_t *data,
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uint32_t tti,
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uint32_t rv_idx,
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uint16_t rnti,
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uint32_t cfi);
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#endif
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