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187 lines
6.8 KiB
C
187 lines
6.8 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_PUCCH_CFG_NR_H
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#define SRSRAN_PUCCH_CFG_NR_H
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#include "srsran/config.h"
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#include <stdbool.h>
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#include <stdint.h>
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/**
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* NR-PUCCH Format 0 ranges
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*/
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#define SRSRAN_PUCCH_NR_FORMAT0_MAX_CS 11
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#define SRSRAN_PUCCH_NR_FORMAT0_MIN_NSYMB 1
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#define SRSRAN_PUCCH_NR_FORMAT0_MAX_NSYMB 2
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#define SRSRAN_PUCCH_NR_FORMAT0_MAX_STARTSYMB 13
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/**
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* NR-PUCCH Format 1 ranges
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*/
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#define SRSRAN_PUCCH_NR_FORMAT1_MAX_CS 11
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#define SRSRAN_PUCCH_NR_FORMAT1_MAX_TOCC 6
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#define SRSRAN_PUCCH_NR_FORMAT1_MIN_NSYMB 4
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#define SRSRAN_PUCCH_NR_FORMAT1_MAX_NSYMB 14
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#define SRSRAN_PUCCH_NR_FORMAT1_MAX_STARTSYMB 10
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#define SRSRAN_PUCCH_NR_FORMAT1_MAX_NOF_BITS 2
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/**
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* NR-PUCCH Format 2 ranges
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*/
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#define SRSRAN_PUCCH_NR_FORMAT2_MIN_NPRB 1
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#define SRSRAN_PUCCH_NR_FORMAT2_MAX_NPRB 16
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#define SRSRAN_PUCCH_NR_FORMAT2_MIN_NSYMB 1
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#define SRSRAN_PUCCH_NR_FORMAT2_MAX_NSYMB 2
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#define SRSRAN_PUCCH_NR_FORMAT2_MAX_STARTSYMB 13
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#define SRSRAN_PUCCH_NR_FORMAT2_MIN_NOF_BITS 3
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/**
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* NR-PUCCH Format 3 ranges
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*/
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#define SRSRAN_PUCCH_NR_FORMAT3_MIN_NPRB 1
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#define SRSRAN_PUCCH_NR_FORMAT3_MAX_NPRB 16
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#define SRSRAN_PUCCH_NR_FORMAT3_MIN_NSYMB 4
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#define SRSRAN_PUCCH_NR_FORMAT3_MAX_NSYMB 14
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#define SRSRAN_PUCCH_NR_FORMAT3_MAX_STARTSYMB 10
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/**
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* NR-PUCCH Format 4 ranges
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*/
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#define SRSRAN_PUCCH_NR_FORMAT4_NPRB 1
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#define SRSRAN_PUCCH_NR_FORMAT4_MIN_NSYMB 4
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#define SRSRAN_PUCCH_NR_FORMAT4_MAX_NSYMB 14
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#define SRSRAN_PUCCH_NR_FORMAT4_MAX_STARTSYMB 10
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/**
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* NR-PUCCH Formats 2, 3 and 4 code rate range
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*/
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#define SRSRAN_PUCCH_NR_MAX_CODE_RATE 7
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/**
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* Maximum number of NR-PUCCH resources per set (TS 38.331 maxNrofPUCCH-ResourcesPerSet)
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*/
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#define SRSRAN_PUCCH_NR_MAX_NOF_RESOURCES_PER_SET 32
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/**
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* Maximum number NR-PUCCH resource sets (TS 38.331 maxNrofPUCCH-ResourceSets)
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*/
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#define SRSRAN_PUCCH_NR_MAX_NOF_SETS 4
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/**
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* Maximum number of SR resources (TS 38.331 maxNrofSR-Resources)
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*/
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#define SRSRAN_PUCCH_MAX_NOF_SR_RESOURCES 8
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typedef enum SRSRAN_API {
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SRSRAN_PUCCH_NR_FORMAT_0 = 0,
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SRSRAN_PUCCH_NR_FORMAT_1,
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SRSRAN_PUCCH_NR_FORMAT_2,
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SRSRAN_PUCCH_NR_FORMAT_3,
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SRSRAN_PUCCH_NR_FORMAT_4,
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SRSRAN_PUCCH_NR_FORMAT_ERROR,
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} srsran_pucch_nr_format_t;
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typedef enum SRSRAN_API {
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SRSRAN_PUCCH_NR_GROUP_HOPPING_NEITHER = 0,
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SRSRAN_PUCCH_NR_GROUP_HOPPING_ENABLE,
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SRSRAN_PUCCH_NR_GROUP_HOPPING_DISABLE
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} srsran_pucch_nr_group_hopping_t;
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/**
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* @brief PUCCH Common configuration
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* @remark Defined in TS 38.331 PUCCH-ConfigCommon
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*/
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typedef struct SRSRAN_API {
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uint32_t resource_common; ///< Configures a set of cell-specific PUCCH resources/parameters
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srsran_pucch_nr_group_hopping_t group_hopping; ///< Configuration of group and sequence hopping
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uint32_t hopping_id; ///< Cell-specific scrambling ID for group hopping and sequence hopping if enabled
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bool hopping_id_present;
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float p0_nominal; ///< Power control parameter P0 for PUCCH transmissions. Value in dBm. (-202..24)
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// From PUSCH-config
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bool scrambling_id_present;
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uint32_t scambling_id; // Identifier used to initialize data scrambling (dataScramblingIdentityPUSCH, 0-1023)
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} srsran_pucch_nr_common_cfg_t;
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/**
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* @brief Generic PUCCH Resource configuration
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* @remark Defined in TS 38.331 PUCCH-Config
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*/
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typedef struct SRSRAN_API {
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// Common PUCCH-Resource parameter
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uint32_t starting_prb;
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bool intra_slot_hopping;
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uint32_t second_hop_prb;
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// Common PUCCH-Resource parameters among all formats
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srsran_pucch_nr_format_t format; ///< PUCCH format this configuration belongs
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uint32_t nof_symbols; ///< Number of symbols
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uint32_t start_symbol_idx; ///< Starting symbol index
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// Specific PUCCH-Resource
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uint32_t initial_cyclic_shift; ///< Used by formats 0, 1
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uint32_t time_domain_occ; ///< Used by format 1
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uint32_t nof_prb; ///< Used by formats 2, 3
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uint32_t occ_lenth; ///< Spreading factor, used by format 4 (2, 4). Also called N_PUCCH4_SF
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uint32_t occ_index; ///< Used by format 4
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// PUCCH Format common parameters
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bool enable_pi_bpsk; ///< Enables PI-BPSK
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uint32_t max_code_rate; ///< Maximum code rate r (0..7)
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bool additional_dmrs; ///< UE enables 2 DMRS symbols per hop of a PUCCH Format 3 or 4
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} srsran_pucch_nr_resource_t;
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typedef struct SRSRAN_API {
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srsran_pucch_nr_resource_t resources[SRSRAN_PUCCH_NR_MAX_NOF_RESOURCES_PER_SET];
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uint32_t nof_resources; ///< Set to 0 if it is NOT provided by higher layers
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uint32_t max_payload_size; ///< Maximum payload size, set to 0 if not present
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} srsran_pucch_nr_resource_set_t;
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/**
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* @brief Scheduling Request resource described in TS 38.331 SchedulingRequestResourceConfig
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* @note Every SR configuration corresponds to one or more logical channels (resources)
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*/
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typedef struct SRSRAN_API {
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uint32_t sr_id; ///< Scheduling Request identifier
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uint32_t period; ///< Period in slots
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uint32_t offset; ///< Offset from beginning of the period in slots
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srsran_pucch_nr_resource_t resource; ///< PUCCH resource
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bool configured; ///< Set to true if higher layers added this value, otherwise set to false
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} srsran_pucch_nr_sr_resource_t;
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typedef struct SRSRAN_API {
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srsran_pucch_nr_common_cfg_t common; ///< NR-PUCCH configuration common for all formats and resources
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srsran_pucch_nr_resource_set_t sets[SRSRAN_PUCCH_NR_MAX_NOF_SETS]; ///< Resource sets, indexed by pucch-ResourceSetId
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bool enabled; ///< Set to true if any set is enabled
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srsran_pucch_nr_sr_resource_t
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sr_resources[SRSRAN_PUCCH_MAX_NOF_SR_RESOURCES]; ///< SR resources, indexed by identifier
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} srsran_pucch_nr_hl_cfg_t;
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/**
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* @brief Validates an NR-PUCCH resource configuration provided by upper layers
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* @param resource Resource configuration to validate
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* @return SRSRAN_SUCCESS if valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_pucch_nr_cfg_resource_valid(const srsran_pucch_nr_resource_t* resource);
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#endif // SRSRAN_PUCCH_CFG_NR_H
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