/** * * \section COPYRIGHT * * Copyright 2013-2021 Software Radio Systems Limited * * By using this file, you agree to the terms and conditions set * forth in the LICENSE file which can be found at the top level of * the distribution. * */ #ifndef SRSRAN_DCI_NR_H #define SRSRAN_DCI_NR_H #include "dci.h" #include "srsran/phy/common/phy_common_nr.h" #include "srsran/phy/phch/phch_cfg_nr.h" /** * @brief Maximum number of NR DCI sizes the UE shall search for a given serving cell */ #define SRSRAN_DCI_NR_MAX_NOF_SIZES 4 /** * @brief DCI configuration given a serving cell */ typedef struct SRSRAN_API { /// Bandwidth parameters uint32_t coreset0_bw; ///< CORESET0 DL bandwidth, set to 0 if not present uint32_t bwp_dl_initial_bw; ///< Initial DL BWP bandwidth uint32_t bwp_dl_active_bw; ///< Active DL BWP bandwidth in PRB uint32_t bwp_ul_initial_bw; ///< Initial UL BWP bandwidth uint32_t bwp_ul_active_bw; ///< Active UL BWP bandwidth in PRB /// Search space derived parameters bool monitor_common_0_0; ///< Set to true if Format 0_0 is monitored in common SS bool monitor_0_0_and_1_0; ///< Set to true if Format 0_0 is monitored in UE-specific SS bool monitor_0_1_and_1_1; ///< Set to true if Formats 0_1 and 1_1 are monitored in UE-specific SS /// PUSCH configuration derived parameters bool enable_sul; ///< Set to true if supplementary uplink is configured bool enable_hopping; ///< Set to true if frequency hopping is enabled /// Common Formats 0_1 and 1_1 uint32_t carrier_indicator_size; ///< Defined in TS 38.213 clause 10.1 srsran_harq_ack_codebook_t harq_ack_codebok; ///< PDSCH HARQ-ACK codebook mode uint32_t nof_rb_groups; ///< Defined in TS 38.214 clause 6.1.2.2.1 /// Format 0_1 specific configuration (for PUSCH only) uint32_t nof_ul_bwp; ///< Number of UL BWPs excluding the initial UL BWP, mentioned in the TS as N_BWP_RRC uint32_t nof_ul_time_res; ///< Number of dedicated PUSCH time domain resource assigment, set to 0 for default uint32_t nof_srs; ///< Number of configured SRS resources uint32_t nof_ul_layers; ///< Set to the maximum number of layers for PUSCH uint32_t pusch_nof_cbg; ///< determined by maxCodeBlockGroupsPerTransportBlock for PUSCH uint32_t report_trigger_size; ///< determined by reportTriggerSize bool enable_transform_precoding; ///< Set to true if PUSCH transform precoding is enabled bool dynamic_dual_harq_ack_codebook; ///< Set to true if HARQ-ACK codebook is set to dynamic with 2 sub-codebooks bool pusch_tx_config_codebook; ///< Set to true if PUSCH txConfig is set to codebook bool pusch_dmrs_type2; ///< Set to true if PUSCH DMRS are type 2 bool pusch_dmrs_double; ///< Set to true if PUSCH DMRS are 2 symbol long bool pusch_ptrs; ///< Set to true if PT-RS are enabled for PUSCH transmission bool pusch_dynamic_betas; ///< Set to true if beta offsets operation is not semi-static srsran_resource_alloc_t pusch_alloc_type; ///< PUSCH resource allocation type /// Format 1_1 specific configuration (for PDSCH only) uint32_t nof_dl_bwp; ///< Number of DL BWPs excluding the initial UL BWP, mentioned in the TS as N_BWP_RRC srsran_resource_alloc_t pdsch_alloc_type; ///< PDSCH resource allocation type, set to 0 for default uint32_t nof_dl_time_res; ///< Number of dedicated PDSCH time domain resource assigment uint32_t nof_aperiodic_zp; ///< Number of aperiodic ZP CSI-RS resource sets configured bool pdsch_inter_prb_to_prb; ///< Set to true if interleaved VRB to PRB mapping is enabled bool pdsch_rm_pattern1; ///< Set to true if rateMatchPatternGroup1 is configured bool pdsch_rm_pattern2; ///< Set to true if rateMatchPatternGroup2 is configured bool pdsch_2cw; ///< Set to true if maxNrofCodeWordsScheduledByDCI is set to 2 in any BWP uint32_t pdsch_nof_cbg; ///< determined by maxCodeBlockGroupsPerTransportBlock for PDSCH bool multiple_scell; ///< Set to true if configured with multiple serving cell bool nof_dl_to_ul_ack; ///< Number of entries in the dl-DataToUL-ACK bool pdsch_dmrs_type2; ///< Set to true if PDSCH DMRS are type 2 bool pdsch_dmrs_double; ///< Set to true if PDSCH DMRS are 2 symbol long bool pdsch_tci; ///< Set to true if tci-PresentInDCI is enabled bool pdsch_cbg_flush; ///< Set to true if codeBlockGroupFlushIndicator is true bool pdsch_dynamic_bundling; ///< Set to true if prb-BundlingType is set to dynamicBundling } srsran_dci_cfg_nr_t; /** * @brief NR-DCI object. Stores DCI configuration and pre-calculated DCI sizes */ typedef struct SRSRAN_API { /// Configuration parameters srsran_dci_cfg_nr_t cfg; /// Formats 0_0 and 1_0 in common SS uint32_t dci_0_0_and_1_0_common_size; ///< DCI format 0_0 and 1_0 in common SS size uint32_t dci_0_0_common_trunc; ///< DCI format 0_0 in common SS truncation uint32_t dci_0_0_common_padd; ///< DCI format 0_0 in common SS padding /// Formats 0_0 and 1_0 in UE-specific SS uint32_t dci_0_0_and_1_0_ue_size; ///< DCI format 0_0 and 1_0 in UE-specific SS size uint32_t dci_0_0_ue_padd; ///< DCI format 0_0 in ue SS padding uint32_t dci_1_0_ue_padd; ///< DCI format 1_0 in ue SS padding /// Formats 0_1 and 1_0 (UE-specific SS only) uint32_t dci_0_1_size; ///< DCI format 0_1 size uint32_t dci_0_1_padd; ///< DCI format 0_1 padding uint32_t dci_1_1_size; ///< DCI format 0_1 size uint32_t dci_1_1_padd; ///< DCI format 1_1 padding } srsran_dci_nr_t; /** * @brief Describes the NR DCI search context */ typedef struct SRSRAN_API { srsran_dci_location_t location; ///< DCI location srsran_search_space_type_t ss_type; ///< Search space type uint32_t coreset_id; ///< CORESET identifier srsran_rnti_type_t rnti_type; ///< RNTI type srsran_dci_format_nr_t format; ///< DCI format uint16_t rnti; ///< UE temporal RNTI uint32_t coreset0_bw; ///< CORESET0 DL bandwidth, set to 0 if not present uint32_t bwp_dl_initial_bw; ///< Initial DL/UL BWP bandwidth uint32_t bwp_dl_active_bw; ///< Active DL/UL BWP bandwidth in PRB uint32_t bwp_ul_initial_bw; ///< Initial UL BWP bandwidth uint32_t bwp_ul_active_bw; ///< Active UL BWP bandwidth in PRB bool monitor_common_0_0; ///< Set to true if Format 0_0 is monitored in common SS bool enable_sul; ///< Set to true if supplementary uplink is configured bool enable_hopping; ///< Set to true if frequency hopping is enabled } srsran_dci_ctx_t; /** * @brief Describes any packed format NR DCI message */ typedef struct SRSRAN_API { srsran_dci_ctx_t ctx; ///< DCI context uint8_t payload[50]; uint32_t nof_bits; } srsran_dci_msg_nr_t; /** * @brief Describes an unpacked DL NR DCI message */ typedef struct SRSRAN_API { srsran_dci_ctx_t ctx; ///< DCI search context // Common fields uint32_t freq_domain_assigment; ///< Frequency domain resource assignment uint32_t time_domain_assigment; ///< Time domain resource assignment uint32_t vrb_to_prb_mapping; ///< VRB-to-PRB mapping uint32_t mcs; ///< Modulation and coding scheme uint32_t rv; ///< Redundancy version uint32_t reserved; ///< Reserved bits // C-RNTI/TC-RNTI specific fields uint32_t ndi; ///< New data indicator uint32_t pid; ///< HARQ process number uint32_t dai; ///< Downlink assignment index uint32_t tpc; ///< TPC command for scheduled PUCCH uint32_t pucch_resource; ///< PUCCH resource indicator uint32_t harq_feedback; ///< PDSCH-to-HARQ_feedback timing indicator // P-RNTI specific fields uint32_t smi; ///< Short Messages Indicator uint32_t sm; ///< Short Messages uint32_t tb_scaling; ///< TB scaling // SI-RNTI specific fields uint32_t sii; ///< System information indicator } srsran_dci_dl_nr_t; /** * @brief Describes an unpacked UL NR DCI message * @remark NR RAR UL DCI Described in TS 38.213 Table 8.2-1: Random Access Response Grant Content field size */ typedef struct SRSRAN_API { // Context information srsran_dci_ctx_t ctx; ///< Context information // Common fields uint32_t freq_domain_assigment; ///< Frequency domain resource assignment uint32_t time_domain_assigment; ///< Time domain resource assignment uint32_t freq_hopping_flag; ///< Frequency hopping flag uint32_t mcs; ///< Modulation and coding scheme uint32_t rv; ///< Redundancy version uint32_t reserved; ///< Reserved bits // C-RNTI or CS-RNTI or MCS-C-RNTI uint32_t ndi; ///< New data indicator uint32_t pid; ///< HARQ process number uint32_t tpc; ///< TPC command for scheduled PUCCH uint32_t pucch_resource; ///< PUCCH resource indicator uint32_t harq_feedback; ///< PDSCH-to-HARQ_feedback timing indicator // Frequency hopping uint32_t frequency_offset; ///< frequency offset // Random Access Response Grant uint32_t csi_request; // Other fields uint32_t sul; ///< Supplementary Uplink flag } srsran_dci_ul_nr_t; /** * @brief Set NR-DCI configuration for a given cell. This function will pre-compute the DCI sizes, padding, truncation * and so on from a given DCI configuration. * @remark Implemented according TS 38.212 section 7.3.1.0 DCI size alignment * @param[in,out] dci DCI object * @param[in] cfg NR-DCI configuration * @return SRSLTE_SUCCESS if the configuration is valid, SRSLTE_ERROR code otherwise */ SRSRAN_API int srsran_dci_nr_set_cfg(srsran_dci_nr_t* dci, const srsran_dci_cfg_nr_t* cfg); /** * @brief Calculates a DL NR-DCI size for a given SS type and format * @attention Only DCI 0_0 and 1_0 can be in common search-space * @param q NR DCI object * @param ss_type Search Space type * @param format NR DCI format * @return The number of bis for the DCI message if configured, 0 otherwise */ SRSRAN_API uint32_t srsran_dci_nr_size(const srsran_dci_nr_t* q, srsran_search_space_type_t ss_type, srsran_dci_format_nr_t format); /** * @brief Indicates whether the provided DCI message format bit indicator belongs to the a Dl DCI format (1_0 or 1_1) * according according to the RNTI type. If invalid, the DCI message is likely to be an UL DCI * @param dci Provides DCI format message * @return true if the DCI message is for DL, false otherwise */ SRSRAN_API bool srsran_dci_nr_valid_direction(const srsran_dci_msg_nr_t* dci); /** * @brief Packs a DL NR DCI into a DCI message * @param q NR DCI object with precomputed DCI parameters * @param dci DL NR DCI to pack (serialize) * @param[out] msg Resultant packed DCI message * @return SRSLTE_SUCCESS if provided arguments are valid, SRSLTE_ERROR code otherwise */ 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); /** * @brief Unpacks an NR DCI message into a DL NR DCI * @param q NR DCI object with precomputed DCI parameters * @param msg DCI message to unpack (deserialize) * @param[out] dci Resultant unpacked DL DCI * @return SRSLTE_SUCCESS if provided arguments are valid, SRSLTE_ERROR code otherwise */ 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); /** * @brief Packs an UL NR DCI into a DCI message * @param q NR DCI object with precomputed DCI parameters * @param dci UL NR DCI to pack (serialize) * @param[out] msg resultant DCI message * @return SRSLTE_SUCCESS if provided arguments are valid, SRSLTE_ERROR code otherwise */ 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); /** * @brief Unpacks an NR DCI message into an UL NR DCI * @param q NR DCI object with precomputed DCI parameters * @param msg DCI message to unpack (deserialize) * @param[out] dci Resultant unpacked UL DCI * @return SRSLTE_SUCCESS if provided arguments are valid, SRSLTE_ERROR code otherwise */ 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); /** * @brief Stringifies an DL NR DCI structure * @param dci DL NR SCI structure to stringify * @param[out] str Destination string * @param str_len Destination string length * @return The number of written characters */ SRSRAN_API int srsran_dci_dl_nr_to_str(const srsran_dci_dl_nr_t* dci, char* str, uint32_t str_len); /** * @brief Stringifies an UL NR DCI structure * @param dci UL NR SCI structure to stringify * @param[out] str Destination string * @param str_len Destination string length * @return The number of written characters */ SRSRAN_API int srsran_dci_ul_nr_to_str(const srsran_dci_ul_nr_t* dci, char* str, uint32_t str_len); #endif // SRSRAN_DCI_NR_H