mirror of https://github.com/PentHertz/srsLTE.git
80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/*
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* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
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* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
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*
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* OSLD-lib 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 published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OSLD-lib 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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* You should have received a copy of the GNU Lesser General Public License
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* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PBCH_
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#define PBCH_
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#include "lte/base.h"
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#include "modem/mod.h"
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#include "modem/demod_soft.h"
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#include "scrambling/scrambling.h"
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#include "ratematching/rm_conv.h"
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#include "fec/convcoder.h"
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#include "fec/viterbi.h"
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#include "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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enum phich_length { NORMAL, EXTENDED};
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enum phich_resources { R_1_6, R_1_2, R_1, R_2};
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typedef struct {
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int nof_ports;
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int nof_prb;
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int sfn;
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enum phich_length phich_length;
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int phich_resources;
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}pbch_mib_t;
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/* PBCH receiver */
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typedef struct {
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int cell_id;
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lte_cp_t cp;
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/* buffers */
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cf_t *pbch_symbols;
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float *pbch_llr;
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float *temp;
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float *pbch_rm;
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char *data;
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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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}pbch_t;
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int pbch_init(pbch_t *q, int cell_id, lte_cp_t cp);
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void pbch_free(pbch_t *q);
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int pbch_decode(pbch_t *q, cf_t *slot1_symbols, cf_t **ce, int nof_ports, int nof_prb, float ebno, pbch_mib_t *data);
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void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
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bool pbch_exists(int nframe, int nslot);
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int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
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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
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