/** * Copyright 2013-2021 Software Radio Systems Limited * * This file is part of srsLTE. * * srsLTE is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * srsLTE is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * A copy of the GNU Affero General Public License can be found in * the LICENSE file in the top-level directory of this distribution * and at http://www.gnu.org/licenses/. * */ #ifndef SRSENB_SCHEDULER_UE_H #define SRSENB_SCHEDULER_UE_H #include "sched_common.h" #include "srsran/srslog/srslog.h" #include #include #include "sched_ue_ctrl/sched_lch.h" #include "sched_ue_ctrl/sched_ue_cell.h" #include "sched_ue_ctrl/tpc.h" #include #include namespace srsenb { typedef enum { UCI_PUSCH_NONE = 0, UCI_PUSCH_CQI, UCI_PUSCH_ACK, UCI_PUSCH_ACK_CQI } uci_pusch_t; /** This class is designed to be thread-safe because it is called from workers through scheduler thread and from * higher layers and mac threads. */ class sched_ue { using ue_cfg_t = sched_interface::ue_cfg_t; using bearer_cfg_t = sched_interface::ue_bearer_cfg_t; public: sched_ue(uint16_t rnti, const std::vector& cell_list_params_, const ue_cfg_t& cfg); void new_subframe(tti_point tti_rx, uint32_t enb_cc_idx); /************************************************************* * * FAPI-like Interface * ************************************************************/ void phy_config_enabled(tti_point tti_rx, bool enabled); void set_cfg(const ue_cfg_t& cfg); void set_bearer_cfg(uint32_t lc_id, const bearer_cfg_t& cfg); void rem_bearer(uint32_t lc_id); void dl_buffer_state(uint8_t lc_id, uint32_t tx_queue, uint32_t retx_queue); void ul_buffer_state(uint8_t lcg_id, uint32_t bsr); void ul_phr(int phr); void mac_buffer_state(uint32_t ce_code, uint32_t nof_cmds); void set_ul_snr(tti_point tti_rx, uint32_t enb_cc_idx, float snr, uint32_t ul_ch_code); void set_dl_ri(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t ri); void set_dl_pmi(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t ri); void set_dl_cqi(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t cqi); int set_ack_info(tti_point tti_rx, uint32_t enb_cc_idx, uint32_t tb_idx, bool ack); void set_ul_crc(tti_point tti_rx, uint32_t enb_cc_idx, bool crc_res); /******************************************************* * Custom functions *******************************************************/ const dl_harq_proc& get_dl_harq(uint32_t idx, uint32_t enb_cc_idx) const; uint16_t get_rnti() const { return rnti; } std::pair get_active_cell_index(uint32_t enb_cc_idx) const; const ue_cfg_t& get_ue_cfg() const { return cfg; } uint32_t get_aggr_level(uint32_t enb_cc_idx, uint32_t nof_bits); void ul_buffer_add(uint8_t lcid, uint32_t bytes); /******************************************************* * Functions used by scheduler metric objects *******************************************************/ uint32_t get_required_prb_ul(uint32_t enb_cc_idx, uint32_t req_bytes); rbg_interval get_required_dl_rbgs(uint32_t enb_cc_idx); srsran::interval get_requested_dl_bytes(uint32_t enb_cc_idx); uint32_t get_pending_dl_rlc_data() const; uint32_t get_expected_dl_bitrate(uint32_t enb_cc_idx, int nof_rbgs = -1) const; uint32_t get_pending_ul_data_total(tti_point tti_tx_ul, int this_enb_cc_idx); uint32_t get_pending_ul_new_data(tti_point tti_tx_ul, int this_enb_cc_idx); uint32_t get_pending_ul_old_data(); uint32_t get_pending_ul_old_data(uint32_t enb_cc_idx); uint32_t get_expected_ul_bitrate(uint32_t enb_cc_idx, int nof_prbs = -1) const; dl_harq_proc* get_pending_dl_harq(tti_point tti_tx_dl, uint32_t enb_cc_idx); dl_harq_proc* get_empty_dl_harq(tti_point tti_tx_dl, uint32_t enb_cc_idx); ul_harq_proc* get_ul_harq(tti_point tti_tx_ul, uint32_t enb_cc_idx); /******************************************************* * Functions used by the scheduler carrier object *******************************************************/ void finish_tti(tti_point tti_rx, uint32_t enb_cc_idx); /******************************************************* * Functions used by the scheduler object *******************************************************/ void set_sr(); void unset_sr(); int generate_dl_dci_format(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); int generate_format0(sched_interface::ul_sched_data_t* data, tti_point tti_tx_ul, uint32_t enb_cc_idx, prb_interval alloc, bool needs_pdcch, srsran_dci_location_t cce_range, int explicit_mcs = -1, uci_pusch_t uci_type = UCI_PUSCH_NONE); srsran_dci_format_t get_dci_format(); const cce_cfi_position_table* get_locations(uint32_t enb_cc_idx, uint32_t current_cfi, uint32_t sf_idx) const; sched_ue_cell* find_ue_carrier(uint32_t enb_cc_idx); size_t nof_carriers_configured() const { return cfg.supported_cc_list.size(); } std::bitset scell_activation_mask() const; int enb_to_ue_cc_idx(uint32_t enb_cc_idx) const; uint32_t get_max_retx(); bool pdsch_enabled(tti_point tti_rx, uint32_t enb_cc_idx) const; bool pusch_enabled(tti_point tti_rx, uint32_t enb_cc_idx, bool needs_pdcch) const; private: bool is_sr_triggered(); tbs_info allocate_new_dl_mac_pdu(sched_interface::dl_sched_data_t* data, dl_harq_proc* h, const rbgmask_t& user_mask, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, uint32_t tb); tbs_info compute_mcs_and_tbs(uint32_t enb_cc_idx, tti_point tti_tx_dl, uint32_t nof_alloc_prbs, uint32_t cfi, const srsran_dci_dl_t& dci); bool needs_cqi(uint32_t tti, uint32_t enb_cc_idx, bool will_send = false); int generate_format1_common(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); int generate_format1(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); int generate_format1a(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); int generate_format2a(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); int generate_format2(uint32_t pid, sched_interface::dl_sched_data_t* data, tti_point tti_tx_dl, uint32_t enb_cc_idx, uint32_t cfi, const rbgmask_t& user_mask); /* Args */ ue_cfg_t cfg = {}; srsran_cell_t cell = {}; srslog::basic_logger& logger; const sched_cell_params_t* main_cc_params = nullptr; /* Buffer states */ bool sr = false; lch_ue_manager lch_handler; uint32_t cqi_request_tti = 0; uint16_t rnti = 0; uint32_t max_msg3retx = 0; bool phy_config_dedicated_enabled = false; tti_point current_tti; std::vector cells; ///< List of eNB cells that may be configured/activated/deactivated for the UE }; using sched_ue_list = std::map >; } // namespace srsenb #endif // SRSENB_SCHEDULER_UE_H