mirror of https://github.com/PentHertz/srsLTE.git
168 lines
6.1 KiB
C++
168 lines
6.1 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_PHY_CFG_NR_H
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#define SRSRAN_PHY_CFG_NR_H
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#include "srsran/config.h"
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#include "srsran/srsran.h"
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#include <array>
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#include <srsran/adt/bounded_vector.h>
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#include <string>
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namespace srsran {
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/***************************
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* PHY Config
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**************************/
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struct phy_cfg_nr_t {
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/**
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* SSB configuration
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*/
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struct ssb_cfg_t {
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uint32_t periodicity_ms = 0;
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std::array<bool, SRSRAN_SSB_NOF_CANDIDATES> position_in_burst = {};
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srsran_subcarrier_spacing_t scs = srsran_subcarrier_spacing_30kHz;
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srsran_ssb_pattern_t pattern = SRSRAN_SSB_PATTERN_A;
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};
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srsran_duplex_config_nr_t duplex = {};
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srsran_sch_hl_cfg_nr_t pdsch = {};
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srsran_sch_hl_cfg_nr_t pusch = {};
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srsran_pucch_nr_hl_cfg_t pucch = {};
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srsran_prach_cfg_t prach = {};
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srsran_pdcch_cfg_nr_t pdcch = {};
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srsran_harq_ack_cfg_hl_t harq_ack = {};
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srsran_csi_hl_cfg_t csi = {};
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srsran_carrier_nr_t carrier = {};
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ssb_cfg_t ssb;
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phy_cfg_nr_t() {}
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bool carrier_is_equal(const srsran::phy_cfg_nr_t& other) const
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{
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return srsran_carrier_nr_equal(&carrier, &other.carrier);
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}
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/**
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* @brief Computes the DCI configuration for the current UE configuration
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*/
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srsran_dci_cfg_nr_t get_dci_cfg() const;
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/**
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* @brief Asserts that the PDCCH configuration is valid for a given Search Space identifier
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* @param ss_id Identifier
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* @return true if the configuration is valid, false otherwise
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*/
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bool assert_ss_id(uint32_t ss_id) const;
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/**
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* @brief Calculates the DCI location candidates for a given search space and aggregation level
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* @param slot_idx Slot index
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* @param rnti UE temporal identifier
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* @param ss_id Search Space identifier
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* @param L Aggregation level
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* @param[out] locations DCI candidate locations
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* @return true if the configuration is valid, false otherwise
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*/
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bool get_dci_locations(
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const uint32_t& slot_idx,
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const uint16_t& rnti,
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const uint32_t& ss_id,
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const uint32_t& L,
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srsran::bounded_vector<srsran_dci_location_t, SRSRAN_SEARCH_SPACE_MAX_NOF_CANDIDATES_NR>& locations) const;
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/**
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* @brief Selects a valid DCI format for scheduling PDSCH and given Search Space identifier
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* @param ss_id Identifier
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* @return A valid DCI format if available, SRSRAN_DCI_FORMAT_NR_COUNT otherwise
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*/
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srsran_dci_format_nr_t get_dci_format_pdsch(uint32_t ss_id) const;
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/**
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* @brief Selects a valid DCI format for scheduling PUSCH and given Search Space identifier
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* @param ss_id Identifier
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* @return A valid DCI format if available, SRSRAN_DCI_FORMAT_NR_COUNT otherwise
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*/
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srsran_dci_format_nr_t get_dci_format_pusch(uint32_t ss_id) const;
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/**
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* @brief Fills PDSCH DCI context for C-RNTI using a search space identifier, DCI candidate location and RNTI
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*/
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bool get_dci_ctx_pdsch_rnti_c(uint32_t ss_id,
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const srsran_dci_location_t& location,
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const uint16_t& rnti,
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srsran_dci_ctx_t& ctx) const;
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/**
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* @brief Fills PUSCH DCI context for C-RNTI using a search space identifier, DCI candidate location and RNTI
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*/
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bool get_dci_ctx_pusch_rnti_c(uint32_t ss_id,
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const srsran_dci_location_t& location,
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const uint16_t& rnti,
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srsran_dci_ctx_t& ctx) const;
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/**
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* @brief Get PDSCH configuration for a given slot and DCI
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*/
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bool
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get_pdsch_cfg(const srsran_slot_cfg_t& slot_cfg, const srsran_dci_dl_nr_t& dci, srsran_sch_cfg_nr_t& pdsch_cfg) const;
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/**
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* @brief Get PUSCH configuration for a given slot and DCI
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*/
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bool
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get_pusch_cfg(const srsran_slot_cfg_t& slot_cfg, const srsran_dci_ul_nr_t& dci, srsran_sch_cfg_nr_t& pdsch_cfg) const;
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/**
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* @brief Get PDSCH ACK resource for a given PDSCH transmission
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*/
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bool get_pdsch_ack_resource(const srsran_dci_dl_nr_t& dci_dl, srsran_harq_ack_resource_t& ack_resource) const;
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/**
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* @brief Compute UCI configuration for the given slot from the pending PDSCH ACK resources, periodic CSI,
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* periodic SR resources and so on.
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*/
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bool get_uci_cfg(const srsran_slot_cfg_t& slot_cfg,
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const srsran_pdsch_ack_nr_t& pdsch_ack,
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srsran_uci_cfg_nr_t& uci_cfg) const;
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/**
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* @brief Compute UCI configuration for PUCCH for the given slot from the pending PDSCH ACK resources, periodic CSI,
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* periodic SR resources and so on.
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*/
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bool get_pucch_uci_cfg(const srsran_slot_cfg_t& slot_cfg,
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const srsran_uci_cfg_nr_t& uci_cfg,
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srsran_pucch_nr_common_cfg_t& cfg,
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srsran_pucch_nr_resource_t& resource) const;
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/**
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* @brief Compute UCI configuration for PUSCH for the given slot from the pending PDSCH ACK resources, periodic CSI,
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* periodic SR resources and so on.
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*/
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bool get_pusch_uci_cfg(const srsran_slot_cfg_t& slot_cfg,
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const srsran_uci_cfg_nr_t& uci_cfg,
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srsran_sch_cfg_nr_t& pusch_cfg) const;
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/**
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* @brief Generate SSB configuration from the overall configuration
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* @attention Sampling rate is the only parameter missing
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* @return valid SSB configuration
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*/
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srsran_ssb_cfg_t get_ssb_cfg() const;
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};
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} // namespace srsran
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#endif // SRSRAN_PHY_CFG_NR_H
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