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77 lines
3.3 KiB
C
77 lines
3.3 KiB
C
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN 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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* srsRAN 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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#ifndef SRSRAN_PBCH_MSG_NR_H
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#define SRSRAN_PBCH_MSG_NR_H
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#include "srsran/config.h"
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#include "srsran/phy/common/phy_common_nr.h"
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#include <stdbool.h>
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#include <stdint.h>
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/**
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* @brief NR PBCH payload size generated by higher layers, deduced from TS 38.331 MIB description
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*/
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#define SRSRAN_PBCH_MSG_NR_SZ 24
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/**
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* @brief Define the payload buffer for SRSRAN_PBCH_MSG_NR_SZ to be 32 for alignment purposes
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*/
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#define SRSRAN_PBCH_MSG_NR_MAX_SZ 32
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/**
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* @brief Describes the NR PBCH message
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*/
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typedef struct SRSRAN_API {
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uint8_t payload[SRSRAN_PBCH_MSG_NR_MAX_SZ]; ///< Actual PBCH payload provided by higher layers
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uint8_t sfn_4lsb; ///< SFN 4 LSB
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uint8_t ssb_idx; ///< SS/PBCH blocks index described in TS 38.213 4.1
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uint8_t k_ssb_msb; ///< Subcarrier offset MSB described in TS 38.211 7.4.3.1
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bool hrf; ///< Half Radio Frame bit
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bool crc; ///< Decoder only, it is true only if the received CRC matches
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} srsran_pbch_msg_nr_t;
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typedef struct SRSRAN_API {
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uint32_t sfn; ///< System frame number
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uint8_t ssb_idx; ///< SS/PBCH blocks index described in TS 38.213 4.1
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bool hrf; ///< Half Radio Frame bit
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srsran_subcarrier_spacing_t scs_common; ///< Subcarrier spacing common
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uint32_t ssb_offset; ///< SSB subcarrier offset
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srsran_dmrs_sch_typeA_pos_t dmrs_typeA_pos; ///< DMRS typeA position
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uint32_t coreset0_idx; ///< CORESET Zero configuration index (0-15)
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uint32_t ss0_idx; ///< SearchSpace Zero configuration index (0-15)
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bool cell_barred; ///< Set to true if the cell is barred
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bool intra_freq_reselection; ///< Set to true if allowed
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uint32_t spare; ///< Unused bits
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} srsran_mib_nr_t;
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SRSRAN_API bool srsran_pbch_msg_nr_is_mib(const srsran_pbch_msg_nr_t* msg);
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SRSRAN_API int srsran_pbch_msg_nr_mib_pack(const srsran_mib_nr_t* mib, srsran_pbch_msg_nr_t* msg);
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SRSRAN_API int srsran_pbch_msg_nr_mib_unpack(const srsran_pbch_msg_nr_t* pbch_msg, srsran_mib_nr_t* mib);
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SRSRAN_API uint32_t srsran_pbch_msg_info(const srsran_pbch_msg_nr_t* msg, char* str, uint32_t str_len);
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SRSRAN_API uint32_t srsran_pbch_msg_nr_mib_info(const srsran_mib_nr_t* mib, char* str, uint32_t str_len);
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#endif // SRSRAN_PBCH_MSG_NR_H
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