mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
11 years ago
|
/*
|
||
|
|
* Copyright (c) 2013, Ismael Gomez-Miguelez <gomezi@tcd.ie>.
|
||
|
|
* This file is part of OSLD-lib (http://https://github.com/ismagom/osld-lib)
|
||
|
|
*
|
||
|
|
* OSLD-lib is free software: you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
||
|
|
* the Free Software Foundation, either version 3 of the License, or
|
||
|
|
* (at your option) any later version.
|
||
|
|
*
|
||
|
|
* OSLD-lib 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 Lesser General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU Lesser General Public License
|
||
|
|
* along with OSLD-lib. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef PBCH_
|
||
|
|
#define PBCH_
|
||
|
|
|
||
|
|
#include "lte/base.h"
|
||
|
|
#include "modem/mod.h"
|
||
|
|
#include "modem/demod_soft.h"
|
||
|
|
#include "scrambling/scrambling.h"
|
||
|
|
#include "ratematching/rm_conv.h"
|
||
|
|
#include "fec/convcoder.h"
|
||
|
|
#include "fec/crc.h"
|
||
|
|
|
||
|
|
#define PBCH_RE_CPNORM 240
|
||
|
|
#define PBCH_RE_CPEXT 216
|
||
|
|
|
||
|
|
typedef _Complex float cf_t;
|
||
|
|
|
||
|
|
enum phich_length { NORMAL, EXTENDED};
|
||
|
|
enum phich_resources { R_1_6, R_1_2, R_1, R_2};
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
int nof_ports;
|
||
|
|
int nof_prb;
|
||
|
|
int sfn;
|
||
|
|
enum phich_length phich_length;
|
||
|
|
int phich_resources;
|
||
|
|
}pbch_mib_t;
|
||
|
|
|
||
|
|
/* PBCH receiver */
|
||
|
|
typedef struct {
|
||
|
|
int cell_id;
|
||
|
|
lte_cp_t cp;
|
||
|
|
|
||
|
|
/* buffers */
|
||
|
|
cf_t *pbch_symbols;
|
||
|
|
float *pbch_llr;
|
||
|
|
float *temp;
|
||
|
|
float *pbch_rm;
|
||
|
|
char *data;
|
||
|
|
|
||
|
|
int frame_idx;
|
||
|
|
|
||
|
|
/* tx & rx objects */
|
||
|
|
modem_table_t mod;
|
||
|
|
demod_soft_t demod;
|
||
|
|
sequence_t seq_pbch;
|
||
|
|
viterbi_t decoder;
|
||
|
|
|
||
|
|
}pbch_t;
|
||
|
|
|
||
|
|
int pbch_init(pbch_t *q, int cell_id, lte_cp_t cp);
|
||
|
|
void pbch_free(pbch_t *q);
|
||
|
|
int pbch_decode(pbch_t *q, cf_t *slot1_symbols, pbch_mib_t *data, int nof_prb, float ebno);
|
||
|
|
void pbch_mib_fprint(FILE *stream, pbch_mib_t *mib);
|
||
|
|
|
||
|
|
|
||
|
|
bool pbch_exists(int nframe, int nslot);
|
||
|
|
int pbch_put(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
|
||
|
|
int pbch_get(cf_t *pbch, cf_t *slot1_data, int nof_prb, lte_cp_t cp, int cell_id);
|
||
|
|
|
||
|
|
#endif
|