/** * * \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_UE_DL_NR_H #define SRSRAN_UE_DL_NR_H #include "srsran/phy/ch_estimation/dmrs_pdcch.h" #include "srsran/phy/common/phy_common_nr.h" #include "srsran/phy/dft/ofdm.h" #include "srsran/phy/phch/dci_nr.h" #include "srsran/phy/phch/pdcch_cfg_nr.h" #include "srsran/phy/phch/pdcch_nr.h" #include "srsran/phy/phch/pdsch_nr.h" #include "srsran/phy/phch/uci_cfg_nr.h" /** * Maximum number of DCI messages to receive */ #define SRSRAN_MAX_DCI_MSG_NR 4 typedef struct SRSRAN_API { srsran_pdsch_nr_args_t pdsch; srsran_pdcch_nr_args_t pdcch; uint32_t nof_rx_antennas; uint32_t nof_max_prb; float pdcch_dmrs_corr_thr; float pdcch_dmrs_epre_thr; } srsran_ue_dl_nr_args_t; typedef struct { uint32_t scell_idx; ///< Serving cell index uint32_t v_dai_dl; ///< Downlink Assigment Index bool dci_format_1_1; ///< Set to true if the PDSCH transmission is triggered by a PDCCH DCI format 1_1 transmission uint32_t k1; ///< HARQ feedback timing uint16_t rnti; uint32_t pucch_resource_id; } srsran_pdsch_ack_resource_nr_t; typedef struct { srsran_pdsch_ack_resource_nr_t resource; uint8_t value[SRSRAN_MAX_CODEWORDS]; // 0/1 or 2 for DTX bool present; // set to true if there is a PDSCH on serving cell c associated with PDCCH in PDCCH monitoring occasion // m, or there is a PDCCH indicating SPS PDSCH release on serving cell c bool dl_bwp_changed; // set to true if PDCCH monitoring occasion m is before an active DL BWP change on serving cell c bool ul_bwp_changed; // set to true if an active UL BWP change on the PCell and an active DL BWP change is not // triggered by a DCI format 1_1 in PDCCH monitoring occasion m bool second_tb_present; // set to true if two TB were detected in the PDCCH monitoring occasion m } srsran_pdsch_ack_m_nr_t; #define SRSRAN_UCI_NR_MAX_M 10 typedef struct { uint32_t M; srsran_pdsch_ack_m_nr_t m[SRSRAN_UCI_NR_MAX_M]; } srsran_pdsch_ack_cc_nr_t; typedef struct { srsran_pdsch_ack_cc_nr_t cc[SRSRAN_MAX_CARRIERS]; uint32_t nof_cc; bool use_pusch; // Set to true, if UCI bits are carried by PUSCH } srsran_pdsch_ack_nr_t; typedef struct SRSRAN_API { bool harq_ack_spatial_bundling_pucch; ///< Param harq-ACK-SpatialBundlingPUCCH, set to true if provided bool harq_ack_spatial_bundling_pusch; ///< Param harq-ACK-SpatialBundlingPUSCH, set to true if provided srsran_harq_ack_codebook_t harq_ack_codebook; ///< pdsch-HARQ-ACK-Codebook configuration bool max_cw_sched_dci_is_2; ///< Param maxNrofCodeWordsScheduledByDCI, set to true if present and equal to 2 uint32_t dl_data_to_ul_ack[SRSRAN_MAX_NOF_DL_DATA_TO_UL]; uint32_t nof_dl_data_to_ul_ack; } srsran_ue_dl_nr_harq_ack_cfg_t; typedef struct SRSRAN_API { srsran_dci_ctx_t dci_ctx; srsran_dmrs_pdcch_measure_t measure; srsran_pdcch_nr_res_t result; uint32_t nof_bits; } srsran_ue_dl_nr_pdcch_info_t; typedef struct SRSRAN_API { uint32_t max_prb; uint32_t nof_rx_antennas; float pdcch_dmrs_corr_thr; float pdcch_dmrs_epre_thr; srsran_carrier_nr_t carrier; srsran_pdcch_cfg_nr_t cfg; srsran_ofdm_t fft[SRSRAN_MAX_PORTS]; cf_t* sf_symbols[SRSRAN_MAX_PORTS]; srsran_chest_dl_res_t chest; srsran_pdsch_nr_t pdsch; srsran_dmrs_sch_t dmrs_pdsch; srsran_dmrs_pdcch_estimator_t dmrs_pdcch[SRSRAN_UE_DL_NR_MAX_NOF_CORESET]; srsran_pdcch_nr_t pdcch; srsran_dmrs_pdcch_ce_t* pdcch_ce; /// Store Blind-search information from all possible candidate locations for debug purposes srsran_ue_dl_nr_pdcch_info_t pdcch_info[SRSRAN_MAX_NOF_CANDIDATES_SLOT_NR]; uint32_t pdcch_info_count; /// DCI packing/unpacking object srsran_dci_nr_t dci; /// Temporally stores Found DCI messages from all SS srsran_dci_msg_nr_t dl_dci_msg[SRSRAN_MAX_DCI_MSG_NR]; uint32_t dl_dci_msg_count; srsran_dci_msg_nr_t ul_dci_msg[SRSRAN_MAX_DCI_MSG_NR]; uint32_t ul_dci_count; } srsran_ue_dl_nr_t; SRSRAN_API int srsran_ue_dl_nr_init(srsran_ue_dl_nr_t* q, cf_t* input[SRSRAN_MAX_PORTS], const srsran_ue_dl_nr_args_t* args); SRSRAN_API int srsran_ue_dl_nr_set_carrier(srsran_ue_dl_nr_t* q, const srsran_carrier_nr_t* carrier); SRSRAN_API int srsran_ue_dl_nr_set_pdcch_config(srsran_ue_dl_nr_t* q, const srsran_pdcch_cfg_nr_t* cfg, const srsran_dci_cfg_nr_t* dci_cfg); SRSRAN_API void srsran_ue_dl_nr_free(srsran_ue_dl_nr_t* q); SRSRAN_API void srsran_ue_dl_nr_estimate_fft(srsran_ue_dl_nr_t* q, const srsran_slot_cfg_t* slot_cfg); SRSRAN_API int srsran_ue_dl_nr_find_dl_dci(srsran_ue_dl_nr_t* q, const srsran_slot_cfg_t* slot_cfg, uint16_t rnti, srsran_rnti_type_t rnti_type, srsran_dci_dl_nr_t* dci_dl_list, uint32_t nof_dci_msg); SRSRAN_API int srsran_ue_dl_nr_find_ul_dci(srsran_ue_dl_nr_t* q, const srsran_slot_cfg_t* slot_cfg, uint16_t rnti, srsran_rnti_type_t rnti_type, srsran_dci_ul_nr_t* dci_ul_list, uint32_t nof_dci_msg); SRSRAN_API int srsran_ue_dl_nr_decode_pdsch(srsran_ue_dl_nr_t* q, const srsran_slot_cfg_t* slot, const srsran_sch_cfg_nr_t* cfg, srsran_pdsch_res_nr_t* res); SRSRAN_API int srsran_ue_dl_nr_pdsch_info(const srsran_ue_dl_nr_t* q, const srsran_sch_cfg_nr_t* cfg, const srsran_pdsch_res_nr_t res[SRSRAN_MAX_CODEWORDS], char* str, uint32_t str_len); SRSRAN_API int srsran_ue_dl_nr_pdsch_ack_resource(const srsran_ue_dl_nr_harq_ack_cfg_t* cfg, const srsran_dci_dl_nr_t* dci_dl, srsran_pdsch_ack_resource_nr_t* pdsch_ack_resource); SRSRAN_API int srsran_ue_dl_nr_gen_ack(const srsran_ue_dl_nr_harq_ack_cfg_t* cfg, const srsran_pdsch_ack_nr_t* ack_info, srsran_uci_data_nr_t* uci_data); #endif // SRSRAN_UE_DL_NR_H