mirror of https://github.com/PentHertz/srsLTE.git
190 lines
7.9 KiB
C
190 lines
7.9 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSRAN_UE_DL_NR_H
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#define SRSRAN_UE_DL_NR_H
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#include "srsran/phy/ch_estimation/dmrs_pdcch.h"
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#include "srsran/phy/common/phy_common_nr.h"
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#include "srsran/phy/dft/ofdm.h"
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#include "srsran/phy/phch/dci_nr.h"
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#include "srsran/phy/phch/pdcch_nr.h"
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#include "srsran/phy/phch/pdsch_nr.h"
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#include "srsran/phy/phch/uci_cfg_nr.h"
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/**
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* Maximum number of CORESET
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* @remark Defined in TS 38.331 by maxNrofControlResourceSets-1
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*/
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#define SRSRAN_UE_DL_NR_MAX_NOF_CORESET 12
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/**
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* Maximum number of Search spaces
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* @remark Defined in TS 38.331 by maxNrofSearchSpaces-1
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*/
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#define SRSRAN_UE_DL_NR_MAX_NOF_SEARCH_SPACE 40
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/**
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* Maximum number of DCI messages to receive
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*/
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#define SRSRAN_MAX_DCI_MSG_NR 4
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typedef struct SRSRAN_API {
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srsran_pdsch_nr_args_t pdsch;
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srsran_pdcch_nr_args_t pdcch;
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uint32_t nof_rx_antennas;
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uint32_t nof_max_prb;
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float pdcch_dmrs_corr_thr;
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float pdcch_dmrs_epre_thr;
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} srsran_ue_dl_nr_args_t;
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typedef struct SRSRAN_API {
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srsran_coreset_t coreset[SRSRAN_UE_DL_NR_MAX_NOF_CORESET]; ///< PDCCH Control resource sets (CORESET) collection
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bool coreset_present[SRSRAN_UE_DL_NR_MAX_NOF_CORESET]; ///< CORESET present flags
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srsran_search_space_t search_space[SRSRAN_UE_DL_NR_MAX_NOF_SEARCH_SPACE];
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bool search_space_present[SRSRAN_UE_DL_NR_MAX_NOF_SEARCH_SPACE];
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uint16_t ra_rnti; ///< Needs to be deduced from the PRACH configuration
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srsran_search_space_t ra_search_space;
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bool ra_search_space_present;
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} srsran_ue_dl_nr_pdcch_cfg_t;
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typedef struct {
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uint32_t scell_idx; ///< Serving cell index
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uint32_t v_dai_dl; ///< Downlink Assigment Index
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bool dci_format_1_1; ///< Set to true if the PDSCH transmission is triggered by a PDCCH DCI format 1_1 transmission
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uint32_t k1; ///< HARQ feedback timing
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uint16_t rnti;
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uint32_t pucch_resource_id;
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} srsran_pdsch_ack_resource_nr_t;
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typedef struct {
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srsran_pdsch_ack_resource_nr_t resource;
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uint8_t value[SRSRAN_MAX_CODEWORDS]; // 0/1 or 2 for DTX
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bool present; // set to true if there is a PDSCH on serving cell c associated with PDCCH in PDCCH monitoring occasion
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// m, or there is a PDCCH indicating SPS PDSCH release on serving cell c
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bool dl_bwp_changed; // set to true if PDCCH monitoring occasion m is before an active DL BWP change on serving cell c
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bool ul_bwp_changed; // set to true if an active UL BWP change on the PCell and an active DL BWP change is not
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// triggered by a DCI format 1_1 in PDCCH monitoring occasion m
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bool second_tb_present; // set to true if two TB were detected in the PDCCH monitoring occasion m
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} srsran_pdsch_ack_m_nr_t;
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#define SRSRAN_UCI_NR_MAX_M 10
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typedef struct {
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uint32_t M;
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srsran_pdsch_ack_m_nr_t m[SRSRAN_UCI_NR_MAX_M];
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} srsran_pdsch_ack_cc_nr_t;
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typedef struct {
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srsran_pdsch_ack_cc_nr_t cc[SRSRAN_MAX_CARRIERS];
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uint32_t nof_cc;
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bool use_pusch; // Set to true, if UCI bits are carried by PUSCH
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} srsran_pdsch_ack_nr_t;
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typedef struct SRSRAN_API {
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bool harq_ack_spatial_bundling_pucch; ///< Param harq-ACK-SpatialBundlingPUCCH, set to true if provided
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bool harq_ack_spatial_bundling_pusch; ///< Param harq-ACK-SpatialBundlingPUSCH, set to true if provided
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srsran_pdsch_harq_ack_codebook_t pdsch_harq_ack_codebook; ///< pdsch-HARQ-ACK-Codebook configuration
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bool max_cw_sched_dci_is_2; ///< Param maxNrofCodeWordsScheduledByDCI, set to true if present and equal to 2
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uint32_t dl_data_to_ul_ack[SRSRAN_MAX_NOF_DL_DATA_TO_UL];
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uint32_t nof_dl_data_to_ul_ack;
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} srsran_ue_dl_nr_harq_ack_cfg_t;
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typedef struct SRSRAN_API {
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uint32_t coreset_id;
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uint32_t ss_id;
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srsran_dci_location_t location;
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srsran_dmrs_pdcch_measure_t measure;
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srsran_pdcch_nr_res_t result;
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} srsran_ue_dl_nr_pdcch_info_t;
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typedef struct SRSRAN_API {
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uint32_t max_prb;
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uint32_t nof_rx_antennas;
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float pdcch_dmrs_corr_thr;
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float pdcch_dmrs_epre_thr;
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srsran_carrier_nr_t carrier;
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srsran_ue_dl_nr_pdcch_cfg_t cfg;
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srsran_ofdm_t fft[SRSRAN_MAX_PORTS];
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cf_t* sf_symbols[SRSRAN_MAX_PORTS];
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srsran_chest_dl_res_t chest;
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srsran_pdsch_nr_t pdsch;
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srsran_dmrs_sch_t dmrs_pdsch;
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srsran_dmrs_pdcch_estimator_t dmrs_pdcch[SRSRAN_UE_DL_NR_MAX_NOF_CORESET];
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srsran_pdcch_nr_t pdcch;
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srsran_dmrs_pdcch_ce_t* pdcch_ce;
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/// Store Blind-search information from all possible candidate locations for debug purposes
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srsran_ue_dl_nr_pdcch_info_t pdcch_info[SRSRAN_MAX_NOF_CANDIDATES_SLOT_NR];
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uint32_t pdcch_info_count;
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/// Temporally stores Found DCI messages from all SS
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srsran_dci_msg_nr_t dci_msg[SRSRAN_MAX_DCI_MSG_NR];
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uint32_t dci_msg_count;
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srsran_dci_msg_nr_t pending_ul_dci_msg[SRSRAN_MAX_DCI_MSG_NR];
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uint32_t pending_ul_dci_count;
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} srsran_ue_dl_nr_t;
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SRSRAN_API int
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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);
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SRSRAN_API int srsran_ue_dl_nr_set_carrier(srsran_ue_dl_nr_t* q, const srsran_carrier_nr_t* carrier);
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SRSRAN_API int srsran_ue_dl_nr_set_pdcch_config(srsran_ue_dl_nr_t* q, const srsran_ue_dl_nr_pdcch_cfg_t* cfg);
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SRSRAN_API void srsran_ue_dl_nr_free(srsran_ue_dl_nr_t* q);
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SRSRAN_API void srsran_ue_dl_nr_estimate_fft(srsran_ue_dl_nr_t* q, const srsran_slot_cfg_t* slot_cfg);
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SRSRAN_API int srsran_ue_dl_nr_find_dl_dci(srsran_ue_dl_nr_t* q,
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const srsran_slot_cfg_t* slot_cfg,
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uint16_t rnti,
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srsran_rnti_type_t rnti_type,
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srsran_dci_dl_nr_t* dci_dl_list,
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uint32_t nof_dci_msg);
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SRSRAN_API int srsran_ue_dl_nr_find_ul_dci(srsran_ue_dl_nr_t* q,
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const srsran_slot_cfg_t* slot_cfg,
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uint16_t rnti,
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srsran_rnti_type_t rnti_type,
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srsran_dci_ul_nr_t* dci_ul_list,
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uint32_t nof_dci_msg);
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SRSRAN_API int srsran_ue_dl_nr_decode_pdsch(srsran_ue_dl_nr_t* q,
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const srsran_slot_cfg_t* slot,
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const srsran_sch_cfg_nr_t* cfg,
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srsran_pdsch_res_nr_t* res);
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SRSRAN_API int srsran_ue_dl_nr_pdsch_info(const srsran_ue_dl_nr_t* q,
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const srsran_sch_cfg_nr_t* cfg,
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const srsran_pdsch_res_nr_t res[SRSRAN_MAX_CODEWORDS],
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char* str,
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uint32_t str_len);
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SRSRAN_API int srsran_ue_dl_nr_pdsch_ack_resource(const srsran_ue_dl_nr_harq_ack_cfg_t* cfg,
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const srsran_dci_dl_nr_t* dci_dl,
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srsran_pdsch_ack_resource_nr_t* pdsch_ack_resource);
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SRSRAN_API int srsran_ue_dl_nr_gen_ack(const srsran_ue_dl_nr_harq_ack_cfg_t* cfg,
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const srsran_pdsch_ack_nr_t* ack_info,
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srsran_uci_data_nr_t* uci_data);
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#endif // SRSRAN_UE_DL_NR_H
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