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/**
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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 SRSENB_SCHEDULER_H
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#define SRSENB_SCHEDULER_H
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#include "sched_grid.h"
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#include "sched_interface.h"
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#include "sched_ue.h"
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#include "srsenb/hdr/common/common_enb.h"
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#include <atomic>
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#include <map>
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#include <mutex>
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namespace srsenb {
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class rrc_interface_mac;
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class sched : public sched_interface
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{
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public:
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/*************************************************************
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*
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* FAPI-like Interface
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*
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************************************************************/
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sched();
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~sched() override;
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void init(rrc_interface_mac* rrc, const sched_args_t& sched_cfg);
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int cell_cfg(const std::vector<cell_cfg_t>& cell_cfg) override;
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int reset() final;
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int ue_cfg(uint16_t rnti, const ue_cfg_t& ue_cfg) final;
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int ue_rem(uint16_t rnti) final;
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bool ue_exists(uint16_t rnti) final;
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void phy_config_enabled(uint16_t rnti, bool enabled);
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int bearer_ue_cfg(uint16_t rnti, uint32_t lc_id, const mac_lc_ch_cfg_t& cfg) final;
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int bearer_ue_rem(uint16_t rnti, uint32_t lc_id) final;
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uint32_t get_ul_buffer(uint16_t rnti) final;
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uint32_t get_dl_buffer(uint16_t rnti) final;
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int dl_rlc_buffer_state(uint16_t rnti, uint32_t lc_id, uint32_t tx_queue, uint32_t prio_tx_queue) final;
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int dl_mac_buffer_state(uint16_t rnti, uint32_t ce_code, uint32_t nof_cmds = 1) final;
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int dl_ack_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t tb_idx, bool ack) final;
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int dl_rach_info(uint32_t enb_cc_idx, dl_sched_rar_info_t rar_info) final;
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int dl_ri_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t ri_value) final;
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int dl_pmi_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t pmi_value) final;
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int dl_cqi_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t cqi_value) final;
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int dl_sb_cqi_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, uint32_t sb_idx, uint32_t cqi_value) final;
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int ul_crc_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, bool crc) final;
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int ul_sr_info(uint32_t tti, uint16_t rnti) override;
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int ul_bsr(uint16_t rnti, uint32_t lcg_id, uint32_t bsr) final;
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int ul_phr(uint16_t rnti, int phr, uint32_t ul_nof_prb) final;
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int ul_snr_info(uint32_t tti, uint16_t rnti, uint32_t enb_cc_idx, float snr, uint32_t ul_ch_code) final;
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int dl_sched(uint32_t tti, uint32_t enb_cc_idx, dl_sched_res_t& sched_result) final;
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int ul_sched(uint32_t tti, uint32_t enb_cc_idx, ul_sched_res_t& sched_result) final;
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/* Custom functions
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*/
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void set_dl_tti_mask(uint8_t* tti_mask, uint32_t nof_sfs) final;
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std::array<int, SRSRAN_MAX_CARRIERS> get_enb_ue_cc_map(uint16_t rnti) final;
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std::array<int, SRSRAN_MAX_CARRIERS> get_enb_ue_activ_cc_map(uint16_t rnti) final;
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int ul_buffer_add(uint16_t rnti, uint32_t lcid, uint32_t bytes) final;
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int metrics_read(uint16_t rnti, mac_ue_metrics_t& metrics);
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class carrier_sched;
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protected:
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void new_tti(srsran::tti_point tti_rx);
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bool is_generated(srsran::tti_point, uint32_t enb_cc_idx) const;
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// Helper methods
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template <typename Func>
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int ue_db_access_locked(uint16_t rnti, Func&& f, const char* func_name = nullptr, bool log_fail = true);
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// args
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rrc_interface_mac* rrc = nullptr;
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sched_args_t sched_cfg = {};
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std::vector<sched_cell_params_t> sched_cell_params;
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rnti_map_t<std::unique_ptr<sched_ue> > ue_db;
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// independent schedulers for each carrier
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std::vector<std::unique_ptr<carrier_sched> > carrier_schedulers;
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// Storage of past scheduling results
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sched_result_ringbuffer sched_results;
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srsran::tti_point last_tti;
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std::mutex sched_mutex;
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bool configured;
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};
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} // namespace srsenb
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#endif // SRSENB_SCHEDULER_H
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