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160 lines
6.7 KiB
C
160 lines
6.7 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 srsLTE.
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*
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* srsLTE 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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* srsLTE 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_DCI_NR_H
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#define SRSRAN_DCI_NR_H
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#include "dci.h"
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#include "srsran/phy/common/phy_common_nr.h"
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#include "srsran/phy/phch/phch_cfg_nr.h"
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typedef struct SRSRAN_API {
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srsran_dci_location_t location;
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srsran_search_space_type_t search_space;
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uint32_t coreset_id;
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uint8_t payload[50];
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srsran_rnti_type_t rnti_type;
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uint32_t nof_bits;
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srsran_dci_format_nr_t format;
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uint16_t rnti;
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} srsran_dci_msg_nr_t;
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typedef struct SRSRAN_API {
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uint16_t rnti;
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srsran_rnti_type_t rnti_type;
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srsran_dci_format_nr_t format;
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srsran_dci_location_t location;
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srsran_search_space_type_t search_space;
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uint32_t coreset_id;
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// Common fields
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uint32_t freq_domain_assigment; ///< Frequency domain resource assignment
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uint32_t time_domain_assigment; ///< Time domain resource assignment
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uint32_t vrb_to_prb_mapping; ///< VRB-to-PRB mapping
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uint32_t mcs; ///< Modulation and coding scheme
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uint32_t rv; ///< Redundancy version
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uint32_t reserved; ///< Reserved bits
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// C-RNTI/TC-RNTI specific fields
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uint32_t ndi; ///< New data indicator
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uint32_t pid; ///< HARQ process number
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uint32_t dai; ///< Downlink assignment index
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uint32_t tpc; ///< TPC command for scheduled PUCCH
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uint32_t pucch_resource; ///< PUCCH resource indicator
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uint32_t harq_feedback; ///< PDSCH-to-HARQ_feedback timing indicator
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// P-RNTI specific fields
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uint32_t smi; ///< Short Messages Indicator
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uint32_t sm; ///< Short Messages
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uint32_t tb_scaling; ///< TB scaling
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// SI-RNTI specific fields
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uint32_t sii; ///< System information indicator
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} srsran_dci_dl_nr_t;
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typedef struct SRSRAN_API {
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// Context information
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uint16_t rnti;
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srsran_rnti_type_t rnti_type;
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srsran_dci_format_nr_t format;
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srsran_dci_location_t location;
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srsran_search_space_type_t search_space;
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uint32_t coreset_id;
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// Common fields
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uint32_t freq_domain_assigment; ///< Frequency domain resource assignment
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uint32_t time_domain_assigment; ///< Time domain resource assignment
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uint32_t freq_hopping_flag; ///< Frequency hopping flag
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uint32_t mcs; ///< Modulation and coding scheme
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uint32_t rv; ///< Redundancy version
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uint32_t reserved; ///< Reserved bits
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// C-RNTI or CS-RNTI or MCS-C-RNTI
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uint32_t ndi; ///< New data indicator
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uint32_t pid; ///< HARQ process number
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uint32_t tpc; ///< TPC command for scheduled PUCCH
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uint32_t pucch_resource; ///< PUCCH resource indicator
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uint32_t harq_feedback; ///< PDSCH-to-HARQ_feedback timing indicator
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// Frequency hopping
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uint32_t frequency_offset; ///< frequency offset
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// Random Access Response Grant
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uint32_t csi_request;
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} srsran_dci_ul_nr_t;
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/**
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* @brief Indicates whether the provided DCI message format bit indicator belongs to DCI format 1_0 according according
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* to the RNTI type. If invalid, the DCI message is likely to be format 0_0
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* @param dci_msg Provides DCI format 1_0 message
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* @return true if the DCI message is format 1_0, false otherwise
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*/
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SRSRAN_API bool srsran_dci_nr_format_1_0_valid(const srsran_dci_msg_nr_t* dci_msg);
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SRSRAN_API int srsran_dci_nr_pack(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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const srsran_dci_dl_nr_t* dci,
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srsran_dci_msg_nr_t* msg);
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SRSRAN_API int srsran_dci_nr_format_0_0_sizeof(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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srsran_rnti_type_t rnti_type);
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SRSRAN_API int srsran_dci_nr_format_0_0_pack(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset0,
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const srsran_dci_ul_nr_t* dci,
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srsran_dci_msg_nr_t* msg);
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SRSRAN_API int srsran_dci_nr_format_0_0_unpack(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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srsran_dci_msg_nr_t* msg,
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srsran_dci_ul_nr_t* dci);
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/**
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* @brief Unpacks DCI from Random Access Response Grant
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* @remark Described in TS 38.213 Table 8.2-1: Random Access Response Grant Content field size
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* @param msg
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* @param dci
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* @return SRSRAN_SUCCESS if unpacked correctly, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_rar_unpack(srsran_dci_msg_nr_t* msg, srsran_dci_ul_nr_t* dci);
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SRSRAN_API int srsran_dci_nr_format_1_0_sizeof(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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srsran_rnti_type_t rnti_type);
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SRSRAN_API int srsran_dci_nr_format_1_0_pack(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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const srsran_dci_dl_nr_t* dci,
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srsran_dci_msg_nr_t* msg);
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SRSRAN_API int srsran_dci_nr_format_1_0_unpack(const srsran_carrier_nr_t* carrier,
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const srsran_coreset_t* coreset,
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srsran_dci_msg_nr_t* msg,
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srsran_dci_dl_nr_t* dci);
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SRSRAN_API int srsran_dci_ul_nr_to_str(const srsran_dci_ul_nr_t* dci, char* str, uint32_t str_len);
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SRSRAN_API int srsran_dci_dl_nr_to_str(const srsran_dci_dl_nr_t* dci, char* str, uint32_t str_len);
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#endif // SRSRAN_DCI_NR_H
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