mirror of https://github.com/PentHertz/srsLTE.git
119 lines
3.4 KiB
C++
119 lines
3.4 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 SRSUE_UL_HARQ_NR_H
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#define SRSUE_UL_HARQ_NR_H
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#include "mux_nr.h"
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#include "proc_ra_nr.h"
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#include "srsran/common/interfaces_common.h"
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#include "srsran/common/timers.h"
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#include "srsran/interfaces/ue_nr_interfaces.h"
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using namespace srsran;
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namespace srsue {
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class ul_harq_entity_nr
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{
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public:
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ul_harq_entity_nr(const uint8_t cc_idx_, mac_interface_harq_nr* mac_, proc_ra_nr* ra_proc__, mux_nr* mux_);
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int init();
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void reset();
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void reset_ndi();
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void set_config(srsran::ul_harq_cfg_t& harq_cfg);
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/***************** PHY->MAC interface for UL processes **************************/
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void new_grant_ul(const mac_interface_phy_nr::mac_nr_grant_ul_t& grant, mac_interface_phy_nr::tb_action_ul_t* action);
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int get_current_tbs(uint32_t pid);
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// HARQ specific metrics interface that is combined for all processees
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struct ul_harq_metrics_t {
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uint32_t tx_ok;
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uint32_t tx_ko;
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uint32_t tx_brate;
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};
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ul_harq_metrics_t get_metrics();
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private:
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class ul_harq_process_nr
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{
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public:
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ul_harq_process_nr();
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~ul_harq_process_nr();
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bool init(uint32_t pid_, ul_harq_entity_nr* entity_);
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void reset();
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void reset_ndi();
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uint8_t get_ndi();
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bool has_grant();
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uint32_t get_nof_retx();
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int get_current_tbs();
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/**
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* Implements Section 5.4.2.1
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*
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* @param grant The unmodified grant as received from PHY
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* @param ndi_toggled The NDI toggled state determined by the entity
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* @param action The resulting UL action structure to be filled.
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*/
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void new_grant_ul(const mac_interface_phy_nr::mac_nr_grant_ul_t& grant,
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const bool& ndi_toggled,
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mac_interface_phy_nr::tb_action_ul_t* action);
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private:
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mac_interface_phy_nr::mac_nr_grant_ul_t current_grant = {};
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bool grant_configured = false;
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uint32_t pid = 0;
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uint32_t nof_retx = 0;
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bool is_initiated = false;
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srslog::basic_logger& logger;
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ul_harq_entity_nr* harq_entity = nullptr;
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srsran_softbuffer_tx_t softbuffer;
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std::unique_ptr<byte_buffer_t> harq_buffer = nullptr;
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void save_grant(const mac_interface_phy_nr::mac_nr_grant_ul_t& grant);
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void generate_tx(mac_interface_phy_nr::tb_action_ul_t* action);
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void generate_new_tx(const mac_interface_phy_nr::mac_nr_grant_ul_t& grant,
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mac_interface_phy_nr::tb_action_ul_t* action);
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void generate_retx(const mac_interface_phy_nr::mac_nr_grant_ul_t& grant,
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mac_interface_phy_nr::tb_action_ul_t* action);
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};
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std::array<ul_harq_process_nr, SRSRAN_MAX_HARQ_PROC_UL_NR> harq_procs;
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mac_interface_harq_nr* mac = nullptr;
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mux_nr* mux = nullptr;
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srslog::basic_logger& logger;
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srsran::ul_harq_cfg_t harq_cfg = {};
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ul_harq_metrics_t metrics = {};
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std::mutex metrics_mutex;
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const static uint8_t NDI_NOT_SET = 100;
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};
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typedef std::unique_ptr<ul_harq_entity_nr> ul_harq_entity_nr_ptr;
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typedef std::array<ul_harq_entity_nr_ptr, SRSRAN_MAX_CARRIERS> ul_harq_entity_nr_vector;
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} // namespace srsue
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#endif // SRSUE_UL_HARQ_NR_H
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