100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2014 The libLTE Developers. See the
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* COPYRIGHT file at the top-level directory of this distribution.
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*
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* \section LICENSE
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*
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* This file is part of the libLTE library.
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*
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* libLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser 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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* libLTE 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 Lesser General Public License for more details.
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*
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* A copy of the GNU Lesser 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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#ifndef PBCH_
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#define PBCH_
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#include "lte/config.h"
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#include "lte/common/base.h"
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#include "lte/mimo/precoding.h"
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#include "lte/mimo/layermap.h"
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#include "lte/modem/mod.h"
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#include "lte/modem/demod_soft.h"
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#include "lte/scrambling/scrambling.h"
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#include "lte/fec/rm_conv.h"
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#include "lte/fec/convcoder.h"
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#include "lte/fec/viterbi.h"
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#include "lte/fec/crc.h"
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#define PBCH_RE_CPNORM 240
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#define PBCH_RE_CPEXT 216
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typedef _Complex float cf_t;
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typedef struct LIBLTE_API {
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int nof_ports;
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int nof_prb;
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int sfn;
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phich_length_t phich_length;
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phich_resources_t phich_resources;
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}pbch_mib_t;
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/* PBCH object */
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typedef struct LIBLTE_API {
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int cell_id;
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lte_cp_t cp;
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int nof_prb;
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int nof_symbols;
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/* buffers */
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cf_t *ce[MAX_PORTS_CTRL];
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cf_t *pbch_symbols[MAX_PORTS_CTRL];
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cf_t *pbch_x[MAX_PORTS_CTRL];
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cf_t *pbch_d;
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float *pbch_llr;
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float *temp;
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float *pbch_rm_f;
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char *pbch_rm_b;
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char *data;
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char *data_enc;
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int frame_idx;
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/* tx & rx objects */
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modem_table_t mod;
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demod_soft_t demod;
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sequence_t seq_pbch;
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viterbi_t decoder;
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crc_t crc;
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convcoder_t encoder;
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}pbch_t;
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LIBLTE_API int pbch_init(pbch_t *q, int nof_prb, int cell_id, lte_cp_t cp);
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LIBLTE_API void pbch_free(pbch_t *q);
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LIBLTE_API int pbch_decode(pbch_t *q, cf_t *slot1_symbols, cf_t *ce[MAX_PORTS_CTRL], float ebno, pbch_mib_t *mib);
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LIBLTE_API void pbch_encode(pbch_t *q, pbch_mib_t *mib, cf_t *slot1_symbols[MAX_PORTS_CTRL], int nof_ports);
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LIBLTE_API void pbch_decode_reset(pbch_t *q);
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LIBLTE_API void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
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LIBLTE_API bool pbch_exists(int nframe, int nslot);
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LIBLTE_API int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
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LIBLTE_API int pbch_get(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
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#endif // PBCH_
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