mirror of https://github.com/PentHertz/srsLTE.git
215 lines
9.4 KiB
C++
215 lines
9.4 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 SRSENB_SCHEDULER_UE_H
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#define SRSENB_SCHEDULER_UE_H
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#include "sched_common.h"
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#include "srsran/srslog/srslog.h"
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#include <map>
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#include <vector>
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#include "sched_ue_ctrl/sched_lch.h"
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#include "sched_ue_ctrl/sched_ue_cell.h"
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#include "sched_ue_ctrl/tpc.h"
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#include <bitset>
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#include <deque>
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namespace srsenb {
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typedef enum { UCI_PUSCH_NONE = 0, UCI_PUSCH_CQI, UCI_PUSCH_ACK, UCI_PUSCH_ACK_CQI } uci_pusch_t;
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/** This class is designed to be thread-safe because it is called from workers through scheduler thread and from
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* higher layers and mac threads.
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*/
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class sched_ue
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{
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using ue_cfg_t = sched_interface::ue_cfg_t;
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using bearer_cfg_t = sched_interface::ue_bearer_cfg_t;
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public:
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sched_ue(uint16_t rnti, const std::vector<sched_cell_params_t>& cell_list_params_, const ue_cfg_t& cfg);
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void new_subframe(tti_point tti_rx, uint32_t enb_cc_idx);
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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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void phy_config_enabled(tti_point tti_rx, bool enabled);
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void set_cfg(const ue_cfg_t& cfg);
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void set_bearer_cfg(uint32_t lc_id, const bearer_cfg_t& cfg);
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void rem_bearer(uint32_t lc_id);
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void dl_buffer_state(uint8_t lc_id, uint32_t tx_queue, uint32_t retx_queue);
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void ul_buffer_state(uint8_t lcg_id, uint32_t bsr);
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void ul_phr(int phr);
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void mac_buffer_state(uint32_t ce_code, uint32_t nof_cmds);
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void set_ul_snr(tti_point tti_rx, uint32_t enb_cc_idx, float snr, uint32_t ul_ch_code);
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void set_dl_ri(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t ri);
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void set_dl_pmi(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t ri);
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void set_dl_cqi(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t cqi);
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int set_ack_info(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t tb_idx, bool ack);
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void set_ul_crc(tti_point tti_rx, uint32_t enb_cc_idx, bool crc_res);
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/*******************************************************
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* Custom functions
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*******************************************************/
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const dl_harq_proc& get_dl_harq(uint32_t idx, uint32_t enb_cc_idx) const;
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uint16_t get_rnti() const { return rnti; }
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std::pair<bool, uint32_t> get_active_cell_index(uint32_t enb_cc_idx) const;
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const ue_cfg_t& get_ue_cfg() const { return cfg; }
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uint32_t get_aggr_level(uint32_t enb_cc_idx, uint32_t nof_bits);
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void ul_buffer_add(uint8_t lcid, uint32_t bytes);
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/*******************************************************
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* Functions used by scheduler metric objects
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*******************************************************/
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uint32_t get_required_prb_ul(uint32_t enb_cc_idx, uint32_t req_bytes);
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rbg_interval get_required_dl_rbgs(uint32_t enb_cc_idx);
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srsran::interval<uint32_t> get_requested_dl_bytes(uint32_t enb_cc_idx);
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uint32_t get_pending_dl_rlc_data() const;
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uint32_t get_expected_dl_bitrate(uint32_t enb_cc_idx, int nof_rbgs = -1) const;
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uint32_t get_pending_ul_data_total(tti_point tti_tx_ul, int this_enb_cc_idx);
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uint32_t get_pending_ul_new_data(tti_point tti_tx_ul, int this_enb_cc_idx);
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uint32_t get_pending_ul_old_data();
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uint32_t get_pending_ul_old_data(uint32_t enb_cc_idx);
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uint32_t get_expected_ul_bitrate(uint32_t enb_cc_idx, int nof_prbs = -1) const;
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dl_harq_proc* get_pending_dl_harq(tti_point tti_tx_dl, uint32_t enb_cc_idx);
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dl_harq_proc* get_empty_dl_harq(tti_point tti_tx_dl, uint32_t enb_cc_idx);
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ul_harq_proc* get_ul_harq(tti_point tti_tx_ul, uint32_t enb_cc_idx);
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/*******************************************************
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* Functions used by the scheduler carrier object
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*******************************************************/
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void finish_tti(tti_point tti_rx, uint32_t enb_cc_idx);
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/*******************************************************
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* Functions used by the scheduler object
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*******************************************************/
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void set_sr();
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void unset_sr();
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int generate_dl_dci_format(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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int generate_format0(sched_interface::ul_sched_data_t* data,
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tti_point tti_tx_ul,
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uint32_t enb_cc_idx,
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prb_interval alloc,
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bool needs_pdcch,
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srsran_dci_location_t cce_range,
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int explicit_mcs = -1,
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uci_pusch_t uci_type = UCI_PUSCH_NONE);
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srsran_dci_format_t get_dci_format();
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const cce_cfi_position_table* get_locations(uint32_t enb_cc_idx, uint32_t current_cfi, uint32_t sf_idx) const;
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sched_ue_cell* find_ue_carrier(uint32_t enb_cc_idx);
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size_t nof_carriers_configured() const { return cfg.supported_cc_list.size(); }
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std::bitset<SRSRAN_MAX_CARRIERS> scell_activation_mask() const;
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int enb_to_ue_cc_idx(uint32_t enb_cc_idx) const;
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uint32_t get_max_retx();
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bool pdsch_enabled(tti_point tti_rx, uint32_t enb_cc_idx) const;
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bool pusch_enabled(tti_point tti_rx, uint32_t enb_cc_idx, bool needs_pdcch) const;
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private:
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bool is_sr_triggered();
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tbs_info allocate_new_dl_mac_pdu(sched_interface::dl_sched_data_t* data,
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dl_harq_proc* h,
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const rbgmask_t& user_mask,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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uint32_t tb);
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tbs_info compute_mcs_and_tbs(uint32_t enb_cc_idx,
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tti_point tti_tx_dl,
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uint32_t nof_alloc_prbs,
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uint32_t cfi,
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const srsran_dci_dl_t& dci);
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bool needs_cqi(uint32_t tti, uint32_t enb_cc_idx, bool will_send = false);
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int generate_format1_common(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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int generate_format1(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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int generate_format1a(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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int generate_format2a(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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int generate_format2(uint32_t pid,
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sched_interface::dl_sched_data_t* data,
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tti_point tti_tx_dl,
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uint32_t enb_cc_idx,
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uint32_t cfi,
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const rbgmask_t& user_mask);
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/* Args */
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ue_cfg_t cfg = {};
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srsran_cell_t cell = {};
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srslog::basic_logger& logger;
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const sched_cell_params_t* main_cc_params = nullptr;
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/* Buffer states */
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bool sr = false;
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lch_ue_manager lch_handler;
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uint32_t cqi_request_tti = 0;
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uint16_t rnti = 0;
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uint32_t max_msg3retx = 0;
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bool phy_config_dedicated_enabled = false;
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tti_point current_tti;
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std::vector<sched_ue_cell> cells; ///< List of eNB cells that may be configured/activated/deactivated for the UE
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};
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using sched_ue_list = std::map<uint16_t, std::unique_ptr<sched_ue> >;
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} // namespace srsenb
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#endif // SRSENB_SCHEDULER_UE_H
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