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331 lines
15 KiB
C
331 lines
15 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_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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/**
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* @brief Maximum number of NR DCI sizes the UE shall search for a given serving cell
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*/
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#define SRSRAN_DCI_NR_MAX_NOF_SIZES 4
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/**
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* @brief DCI configuration given a serving cell
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*/
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typedef struct SRSRAN_API {
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/// Bandwidth parameters
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uint32_t coreset0_bw; ///< CORESET0 DL bandwidth, set to 0 if not present
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uint32_t bwp_dl_initial_bw; ///< Initial DL BWP bandwidth
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uint32_t bwp_dl_active_bw; ///< Active DL BWP bandwidth in PRB
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uint32_t bwp_ul_initial_bw; ///< Initial UL BWP bandwidth
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uint32_t bwp_ul_active_bw; ///< Active UL BWP bandwidth in PRB
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/// Search space derived parameters
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bool monitor_common_0_0; ///< Set to true if Format 0_0 is monitored in common SS
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bool monitor_0_0_and_1_0; ///< Set to true if Format 0_0 is monitored in UE-specific SS
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bool monitor_0_1_and_1_1; ///< Set to true if Formats 0_1 and 1_1 are monitored in UE-specific SS
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/// PUSCH configuration derived parameters
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bool enable_sul; ///< Set to true if supplementary uplink is configured
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bool enable_hopping; ///< Set to true if frequency hopping is enabled
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/// Common Formats 0_1 and 1_1
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uint32_t carrier_indicator_size; ///< Defined in TS 38.213 clause 10.1
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srsran_harq_ack_codebook_t harq_ack_codebok; ///< PDSCH HARQ-ACK codebook mode
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uint32_t nof_rb_groups; ///< For allocation type 0, defined in TS 38.214 clause 6.1.2.2.1
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/// Format 0_1 specific configuration (for PUSCH only)
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uint32_t nof_ul_bwp; ///< Number of UL BWPs excluding the initial UL BWP, mentioned in the TS as N_BWP_RRC
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uint32_t nof_ul_time_res; ///< Number of dedicated PUSCH time domain resource assigment, set to 0 for default
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uint32_t nof_srs; ///< Number of configured SRS resources
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uint32_t nof_ul_layers; ///< Set to the maximum number of layers for PUSCH
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uint32_t pusch_nof_cbg; ///< determined by maxCodeBlockGroupsPerTransportBlock for PUSCH
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uint32_t report_trigger_size; ///< determined by reportTriggerSize
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bool enable_transform_precoding; ///< Set to true if PUSCH transform precoding is enabled
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bool dynamic_dual_harq_ack_codebook; ///< Set to true if HARQ-ACK codebook is set to dynamic with 2 sub-codebooks
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bool pusch_tx_config_non_codebook; ///< Set to true if PUSCH txConfig is set to non-codebook
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bool pusch_ptrs; ///< Set to true if PT-RS are enabled for PUSCH transmission
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bool pusch_dynamic_betas; ///< Set to true if beta offsets operation is not semi-static
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srsran_resource_alloc_t pusch_alloc_type; ///< PUSCH resource allocation type
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srsran_dmrs_sch_type_t pusch_dmrs_type; ///< PUSCH DMRS type
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srsran_dmrs_sch_len_t pusch_dmrs_max_len; ///< PUSCH DMRS maximum length
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/// Format 1_1 specific configuration (for PDSCH only)
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uint32_t nof_dl_bwp; ///< Number of DL BWPs excluding the initial UL BWP, mentioned in the TS as N_BWP_RRC
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uint32_t nof_dl_time_res; ///< Number of dedicated PDSCH time domain resource assigment
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uint32_t nof_aperiodic_zp; ///< Number of aperiodic ZP CSI-RS resource sets configured
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uint32_t pdsch_nof_cbg; ///< determined by maxCodeBlockGroupsPerTransportBlock for PDSCH
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uint32_t nof_dl_to_ul_ack; ///< Number of entries in the dl-DataToUL-ACK
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bool pdsch_inter_prb_to_prb; ///< Set to true if interleaved VRB to PRB mapping is enabled
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bool pdsch_rm_pattern1; ///< Set to true if rateMatchPatternGroup1 is configured
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bool pdsch_rm_pattern2; ///< Set to true if rateMatchPatternGroup2 is configured
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bool pdsch_2cw; ///< Set to true if maxNrofCodeWordsScheduledByDCI is set to 2 in any BWP
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bool multiple_scell; ///< Set to true if configured with multiple serving cell
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bool pdsch_tci; ///< Set to true if tci-PresentInDCI is enabled
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bool pdsch_cbg_flush; ///< Set to true if codeBlockGroupFlushIndicator is true
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bool pdsch_dynamic_bundling; ///< Set to true if prb-BundlingType is set to dynamicBundling
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srsran_resource_alloc_t pdsch_alloc_type; ///< PDSCH resource allocation type, set to 0 for default
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srsran_dmrs_sch_type_t pdsch_dmrs_type; ///< PDSCH DMRS type
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srsran_dmrs_sch_len_t pdsch_dmrs_max_len; ///< PDSCH DMRS maximum length
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} srsran_dci_cfg_nr_t;
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/**
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* @brief NR-DCI object. Stores DCI configuration and pre-calculated DCI sizes
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*/
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typedef struct SRSRAN_API {
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/// Configuration parameters
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srsran_dci_cfg_nr_t cfg;
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/// Formats 0_0 and 1_0 in common SS
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uint32_t dci_0_0_and_1_0_common_size; ///< DCI format 0_0 and 1_0 in common SS size
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uint32_t dci_0_0_common_trunc; ///< DCI format 0_0 in common SS truncation
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uint32_t dci_0_0_common_padd; ///< DCI format 0_0 in common SS padding
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/// Formats 0_0 and 1_0 in UE-specific SS
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uint32_t dci_0_0_and_1_0_ue_size; ///< DCI format 0_0 and 1_0 in UE-specific SS size
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uint32_t dci_0_0_ue_padd; ///< DCI format 0_0 in ue SS padding
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uint32_t dci_1_0_ue_padd; ///< DCI format 1_0 in ue SS padding
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/// Formats 0_1 and 1_0 (UE-specific SS only)
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uint32_t dci_0_1_size; ///< DCI format 0_1 size
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uint32_t dci_0_1_padd; ///< DCI format 0_1 padding
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uint32_t dci_1_1_size; ///< DCI format 0_1 size
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uint32_t dci_1_1_padd; ///< DCI format 1_1 padding
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} srsran_dci_nr_t;
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/**
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* @brief Describes the NR DCI search context
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*/
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typedef struct SRSRAN_API {
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srsran_dci_location_t location; ///< DCI location
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srsran_search_space_type_t ss_type; ///< Search space type
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uint32_t coreset_id; ///< CORESET identifier
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srsran_rnti_type_t rnti_type; ///< RNTI type
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srsran_dci_format_nr_t format; ///< DCI format
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uint16_t rnti; ///< UE temporal RNTI
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} srsran_dci_ctx_t;
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/**
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* @brief Describes any packed format NR DCI message
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*/
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typedef struct SRSRAN_API {
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srsran_dci_ctx_t ctx; ///< DCI context
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uint8_t payload[50];
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uint32_t nof_bits;
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} srsran_dci_msg_nr_t;
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/**
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* @brief Describes an unpacked DL NR DCI message
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*/
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typedef struct SRSRAN_API {
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srsran_dci_ctx_t ctx; ///< DCI search context
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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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// Second TB (Optional)
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uint32_t mcs2; ///< Modulation and coding scheme for the second transport block
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uint32_t ndi2; ///< New data indicator for the second transport block
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uint32_t rv2; ///< Redundancy version for the second transport block
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// Optional fields
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uint32_t cc_id; ///< Carrier indicator
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uint32_t bwp_id; ///< BWP indicator
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uint32_t rm_pattern1; ///< Rate matching pattern 1 indicator
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uint32_t rm_pattern2; ///< Rate matching pattern 2 indicator
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uint32_t zp_csi_rs_id; ///< ZP-CSI-RS trigger
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uint32_t ports; ///< Antenna ports
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uint32_t tci; ///< Transmission configuration indication
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uint32_t srs_request; ///< SRS request
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uint32_t cbg_info; ///< CBG transmission information (CBGTI)
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uint32_t cbg_flush; ///< CBG flushing out information (CBGFI)
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uint32_t dmrs_id; ///< DMRS sequence initialization
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} srsran_dci_dl_nr_t;
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/**
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* @brief Describes an unpacked UL NR DCI message
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* @remark NR RAR UL DCI Described in TS 38.213 Table 8.2-1: Random Access Response Grant Content field size
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*/
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typedef struct SRSRAN_API {
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// Context information
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srsran_dci_ctx_t ctx; ///< Context information
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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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// 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; ///< CSI request
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// Optional fields
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uint32_t sul; ///< Supplementary Uplink flag
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uint32_t cc_id; ///< Carrier indicator
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uint32_t bwp_id; ///< BWP indicator
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uint32_t dai1; ///< First DAI
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uint32_t dai2; ///< Second DAI
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uint32_t srs_id; ///< SRS resource indicator
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uint32_t ports; ///< Antenna ports
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uint32_t srs_request; ///< SRS request
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uint32_t cbg_info; ///< CBG transmission information (CBGTI)
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uint32_t ptrs_id; ///< PTRS-DMRS association
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uint32_t beta_id; ///< beta_offset indicator
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uint32_t dmrs_id; ///< DMRS sequence initialization
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uint32_t ulsch; ///< UL-SCH indicator
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} srsran_dci_ul_nr_t;
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/**
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* @brief Set NR-DCI configuration for a given cell. This function will pre-compute the DCI sizes, padding, truncation
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* and so on from a given DCI configuration.
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* @remark Implemented according TS 38.212 section 7.3.1.0 DCI size alignment
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* @param[in,out] dci DCI object
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* @param[in] cfg NR-DCI configuration
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* @return SRSRAN_SUCCESS if the configuration is valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_set_cfg(srsran_dci_nr_t* dci, const srsran_dci_cfg_nr_t* cfg);
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/**
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* @brief Calculates a DL NR-DCI size for a given SS type and format
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* @attention Only DCI 0_0 and 1_0 can be in common search-space
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* @param q NR DCI object
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* @param ss_type Search Space type
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* @param format NR DCI format
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* @return The number of bis for the DCI message if configured, 0 otherwise
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*/
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SRSRAN_API uint32_t srsran_dci_nr_size(const srsran_dci_nr_t* q,
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srsran_search_space_type_t ss_type,
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srsran_dci_format_nr_t format);
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/**
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* @brief Indicates whether the provided DCI message format bit indicator belongs to the a Dl DCI format (1_0 or 1_1)
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* according according to the RNTI type. If invalid, the DCI message is likely to be an UL DCI
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* @param dci Provides DCI format message
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* @return true if the DCI message is for DL, false otherwise
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*/
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SRSRAN_API bool srsran_dci_nr_valid_direction(const srsran_dci_msg_nr_t* dci);
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/**
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* @brief Packs a DL NR DCI into a DCI message
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* @param q NR DCI object with precomputed DCI parameters
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* @param dci DL NR DCI to pack (serialize)
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* @param[out] msg Resultant packed DCI message
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* @return SRSRAN_SUCCESS if provided arguments are valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_dl_pack(const srsran_dci_nr_t* q, const srsran_dci_dl_nr_t* dci, srsran_dci_msg_nr_t* msg);
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/**
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* @brief Unpacks an NR DCI message into a DL NR DCI
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* @param q NR DCI object with precomputed DCI parameters
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* @param msg DCI message to unpack (deserialize)
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* @param[out] dci Resultant unpacked DL DCI
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* @return SRSRAN_SUCCESS if provided arguments are valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_dl_unpack(const srsran_dci_nr_t* q, srsran_dci_msg_nr_t* msg, srsran_dci_dl_nr_t* dci);
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/**
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* @brief Packs an UL NR DCI into a DCI message
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* @param q NR DCI object with precomputed DCI parameters
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* @param dci UL NR DCI to pack (serialize)
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* @param[out] msg resultant DCI message
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* @return SRSRAN_SUCCESS if provided arguments are valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_ul_pack(const srsran_dci_nr_t* q, const srsran_dci_ul_nr_t* dci, srsran_dci_msg_nr_t* msg);
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/**
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* @brief Unpacks an NR DCI message into an UL NR DCI
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* @param q NR DCI object with precomputed DCI parameters
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* @param msg DCI message to unpack (deserialize)
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* @param[out] dci Resultant unpacked UL DCI
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* @return SRSRAN_SUCCESS if provided arguments are valid, SRSRAN_ERROR code otherwise
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*/
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SRSRAN_API int srsran_dci_nr_ul_unpack(const srsran_dci_nr_t* q, srsran_dci_msg_nr_t* msg, srsran_dci_ul_nr_t* dci);
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/**
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* @brief Stringifies an NR DCI conxtext
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* @param ctx Provides NR DCI context
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* @param[out] str Destination string
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* @param str_len Destination string length
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* @return The number of written characters
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*/
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SRSRAN_API int srsran_dci_ctx_to_str(const srsran_dci_ctx_t* ctx, char* str, uint32_t str_len);
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/**
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* @brief Stringifies a DL NR DCI structure
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* @param q NR DCI object with precomputed DCI parameters
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* @param dci DL NR SCI structure to stringify
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* @param[out] str Destination string
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* @param str_len Destination string length
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* @return The number of written characters
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*/
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SRSRAN_API int
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srsran_dci_dl_nr_to_str(const srsran_dci_nr_t* q, const srsran_dci_dl_nr_t* dci, char* str, uint32_t str_len);
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/**
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* @brief Stringifies an UL NR DCI structure
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* @param q NR DCI object with precomputed DCI parameters
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* @param dci UL NR SCI structure to stringify
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* @param[out] str Destination string
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* @param str_len Destination string length
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* @return The number of written characters
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*/
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SRSRAN_API int
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srsran_dci_ul_nr_to_str(const srsran_dci_nr_t* q, const srsran_dci_ul_nr_t* dci, char* str, uint32_t str_len);
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#endif // SRSRAN_DCI_NR_H
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