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C

/**
* Copyright 2013-2022 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* srsRAN 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 Affero General Public License for more details.
*
* A copy of the GNU Affero General Public License can be found in
* the LICENSE file in the top-level directory of this distribution
* and at http://www.gnu.org/licenses/.
*
*/
/******************************************************************************
* File: regs.h
*
* Description: Resource element mapping functions.
*
* Reference: 3GPP TS 36.211 version 10.0.0 Release 10
*****************************************************************************/
#ifndef SRSRAN_REGS_H
#define SRSRAN_REGS_H
#include "srsran/config.h"
#include "srsran/phy/common/phy_common.h"
#include <stdbool.h>
#define REGS_PHICH_NSYM 12
#define REGS_PHICH_REGS_X_GROUP 3
#define REGS_PCFICH_NSYM 16
#define REGS_PCFICH_NREGS 4
#define REGS_RE_X_REG 4
typedef struct SRSRAN_API {
uint32_t k[4];
uint32_t k0;
uint32_t l;
bool assigned;
} srsran_regs_reg_t;
typedef struct SRSRAN_API {
uint32_t nof_regs;
srsran_regs_reg_t** regs;
} srsran_regs_ch_t;
typedef struct SRSRAN_API {
srsran_cell_t cell;
uint32_t max_ctrl_symbols;
uint32_t ngroups_phich;
uint32_t ngroups_phich_m1;
srsran_phich_r_t phich_res;
srsran_phich_length_t phich_len;
srsran_regs_ch_t pcfich;
srsran_regs_ch_t* phich; // there are several phich
srsran_regs_ch_t pdcch[3]; /* PDCCH indexing, permutation and interleaving is computed for
the three possible CFI value */
uint32_t phich_mi;
uint32_t nof_regs;
srsran_regs_reg_t* regs;
} srsran_regs_t;
SRSRAN_API int srsran_regs_init(srsran_regs_t* h, srsran_cell_t cell);
SRSRAN_API int srsran_regs_init_opts(srsran_regs_t* h, srsran_cell_t cell, uint32_t phich_mi, bool mbsfn_or_sf1_6_tdd);
SRSRAN_API void srsran_regs_free(srsran_regs_t* h);
SRSRAN_API int srsran_regs_pdcch_nregs(srsran_regs_t* h, uint32_t cfi);
SRSRAN_API int srsran_regs_pdcch_ncce(srsran_regs_t* h, uint32_t cfi);
SRSRAN_API int srsran_regs_pcfich_put(srsran_regs_t* h, cf_t symbols[REGS_PCFICH_NSYM], cf_t* slot_symbols);
SRSRAN_API int srsran_regs_pcfich_get(srsran_regs_t* h, cf_t* slot_symbols, cf_t symbols[REGS_PCFICH_NSYM]);
SRSRAN_API uint32_t srsran_regs_phich_nregs(srsran_regs_t* h);
SRSRAN_API int
srsran_regs_phich_add(srsran_regs_t* h, cf_t symbols[REGS_PHICH_NSYM], uint32_t ngroup, cf_t* slot_symbols);
SRSRAN_API int
srsran_regs_phich_get(srsran_regs_t* h, cf_t* slot_symbols, cf_t symbols[REGS_PHICH_NSYM], uint32_t ngroup);
SRSRAN_API uint32_t srsran_regs_phich_ngroups(srsran_regs_t* h);
SRSRAN_API uint32_t srsran_regs_phich_ngroups_m1(srsran_regs_t* h);
SRSRAN_API int srsran_regs_phich_reset(srsran_regs_t* h, cf_t* slot_symbols);
SRSRAN_API int srsran_regs_pdcch_put(srsran_regs_t* h, uint32_t cfi, cf_t* d, cf_t* slot_symbols);
SRSRAN_API int srsran_regs_pdcch_put_offset(srsran_regs_t* h,
uint32_t cfi,
cf_t* d,
cf_t* slot_symbols,
uint32_t start_reg,
uint32_t nof_regs);
SRSRAN_API int srsran_regs_pdcch_get(srsran_regs_t* h, uint32_t cfi, cf_t* slot_symbols, cf_t* d);
SRSRAN_API int srsran_regs_pdcch_get_offset(srsran_regs_t* h,
uint32_t cfi,
cf_t* slot_symbols,
cf_t* d,
uint32_t start_reg,
uint32_t nof_regs);
#endif // SRSRAN_REGS_H