mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
270 lines
11 KiB
C++
270 lines
11 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2020 Software Radio Systems Limited
|
|
*
|
|
* By using this file, you agree to the terms and conditions set
|
|
* forth in the LICENSE file which can be found at the top level of
|
|
* the distribution.
|
|
*
|
|
*/
|
|
|
|
#ifndef SRSENB_SCHEDULER_UE_H
|
|
#define SRSENB_SCHEDULER_UE_H
|
|
|
|
#include "sched_common.h"
|
|
#include "srslte/common/log.h"
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
#include "sched_harq.h"
|
|
#include "sched_ue_ctrl/sched_lch.h"
|
|
#include "sched_ue_ctrl/tpc.h"
|
|
#include <bitset>
|
|
#include <deque>
|
|
|
|
namespace srsenb {
|
|
|
|
typedef enum { UCI_PUSCH_NONE = 0, UCI_PUSCH_CQI, UCI_PUSCH_ACK, UCI_PUSCH_ACK_CQI } uci_pusch_t;
|
|
enum class cc_st { active, idle, activating, deactivating };
|
|
|
|
struct cc_sched_ue {
|
|
const static int SCHED_MAX_HARQ_PROC = FDD_HARQ_DELAY_UL_MS + FDD_HARQ_DELAY_DL_MS;
|
|
|
|
cc_sched_ue(const sched_interface::ue_cfg_t& cfg_,
|
|
const sched_cell_params_t& cell_cfg_,
|
|
uint16_t rnti_,
|
|
uint32_t ue_cc_idx,
|
|
srslte::tti_point current_tti);
|
|
void reset();
|
|
void set_cfg(const sched_interface::ue_cfg_t& cfg); ///< reconfigure ue carrier
|
|
void finish_tti(srslte::tti_point tti_rx);
|
|
|
|
uint32_t get_aggr_level(uint32_t nof_bits);
|
|
int alloc_tbs(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, bool is_ul, int* mcs);
|
|
int alloc_tbs_dl(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, int* mcs);
|
|
int alloc_tbs_ul(uint32_t nof_prb, uint32_t nof_re, uint32_t req_bytes, int* mcs);
|
|
int get_required_prb_dl(uint32_t req_bytes, uint32_t nof_ctrl_symbols);
|
|
uint32_t get_required_prb_ul(uint32_t req_bytes);
|
|
const sched_cell_params_t* get_cell_cfg() const { return cell_params; }
|
|
uint32_t get_ue_cc_idx() const { return ue_cc_idx; }
|
|
void set_dl_cqi(tti_point tti_rx, uint32_t dl_cqi);
|
|
int cqi_to_tbs(uint32_t nof_prb, uint32_t nof_re, bool is_ul, uint32_t* mcs);
|
|
cc_st cc_state() const { return cc_state_; }
|
|
|
|
harq_entity harq_ent;
|
|
|
|
uint32_t dl_ri = 0;
|
|
tti_point dl_ri_tti_rx{};
|
|
uint32_t dl_pmi = 0;
|
|
tti_point dl_pmi_tti_rx{};
|
|
uint32_t dl_cqi = 1;
|
|
tti_point dl_cqi_tti_rx{0};
|
|
uint32_t ul_cqi = 1;
|
|
tti_point ul_cqi_tti_rx{};
|
|
bool dl_cqi_rx = false;
|
|
|
|
uint32_t max_mcs_dl = 28, max_mcs_ul = 28;
|
|
uint32_t max_aggr_level = 3;
|
|
int fixed_mcs_ul = 0, fixed_mcs_dl = 0;
|
|
tpc tpc_fsm;
|
|
|
|
// Allowed DCI locations per per CFI and per subframe
|
|
std::array<std::array<sched_dci_cce_t, 10>, 3> dci_locations = {};
|
|
|
|
private:
|
|
// config
|
|
srslte::log_ref log_h;
|
|
const sched_interface::ue_cfg_t* cfg = nullptr;
|
|
const sched_cell_params_t* cell_params = nullptr;
|
|
uint16_t rnti;
|
|
uint32_t ue_cc_idx = 0;
|
|
srslte::tti_point cfg_tti;
|
|
|
|
// state
|
|
srslte::tti_point last_tti;
|
|
cc_st cc_state_ = cc_st::idle;
|
|
};
|
|
|
|
const char* to_string(sched_interface::ue_bearer_cfg_t::direction_t dir);
|
|
|
|
/** 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();
|
|
void reset();
|
|
void init(uint16_t rnti, const std::vector<sched_cell_params_t>& cell_list_params_);
|
|
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 cc_idx) const;
|
|
uint16_t get_rnti() const { return rnti; }
|
|
std::pair<bool, uint32_t> 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 ue_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 cc_idx, uint32_t req_bytes);
|
|
|
|
rbg_interval get_required_dl_rbgs(uint32_t ue_cc_idx);
|
|
srslte::interval<uint32_t> get_requested_dl_bytes(uint32_t ue_cc_idx);
|
|
uint32_t get_pending_dl_rlc_data() const;
|
|
uint32_t get_expected_dl_bitrate(uint32_t ue_cc_idx) const;
|
|
|
|
uint32_t get_pending_ul_data_total(tti_point tti_tx_ul, int this_ue_cc_idx);
|
|
uint32_t get_pending_ul_new_data(tti_point tti_tx_ul, int this_ue_cc_idx);
|
|
uint32_t get_pending_ul_old_data();
|
|
uint32_t get_pending_ul_old_data(uint32_t cc_idx);
|
|
uint32_t get_expected_ul_bitrate(uint32_t ue_cc_idx) const;
|
|
|
|
dl_harq_proc* get_pending_dl_harq(tti_point tti_tx_dl, uint32_t cc_idx);
|
|
dl_harq_proc* get_empty_dl_harq(tti_point tti_tx_dl, uint32_t cc_idx);
|
|
ul_harq_proc* get_ul_harq(tti_point tti_tx_ul, uint32_t ue_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 ue_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 cc_idx,
|
|
prb_interval alloc,
|
|
bool needs_pdcch,
|
|
srslte_dci_location_t cce_range,
|
|
int explicit_mcs = -1,
|
|
uci_pusch_t uci_type = UCI_PUSCH_NONE);
|
|
|
|
srslte_dci_format_t get_dci_format();
|
|
sched_dci_cce_t* get_locations(uint32_t enb_cc_idx, uint32_t current_cfi, uint32_t sf_idx);
|
|
|
|
cc_sched_ue* find_ue_carrier(uint32_t enb_cc_idx);
|
|
size_t nof_carriers_configured() const { return carriers.size(); }
|
|
std::bitset<SRSLTE_MAX_CARRIERS> scell_activation_mask() const;
|
|
int enb_to_ue_cc_idx(uint32_t enb_cc_idx) const;
|
|
|
|
uint32_t get_max_retx();
|
|
|
|
bool pucch_sr_collision(tti_point tti_tx_dl, uint32_t n_cce);
|
|
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:
|
|
void check_ue_cfg_correctness() const;
|
|
bool is_sr_triggered();
|
|
|
|
std::pair<int, int> 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 ue_cc_idx,
|
|
uint32_t cfi,
|
|
uint32_t tb);
|
|
|
|
std::pair<int, int> compute_mcs_and_tbs(uint32_t ue_cc_idx,
|
|
tti_point tti_tx_dl,
|
|
uint32_t nof_alloc_prbs,
|
|
uint32_t cfi,
|
|
const srslte_dci_dl_t& dci);
|
|
|
|
bool needs_cqi(uint32_t tti, uint32_t cc_idx, bool will_send = false);
|
|
|
|
int generate_format1(uint32_t pid,
|
|
sched_interface::dl_sched_data_t* data,
|
|
tti_point tti_tx_dl,
|
|
uint32_t ue_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 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 cc_idx,
|
|
uint32_t cfi,
|
|
const rbgmask_t& user_mask);
|
|
|
|
/* Args */
|
|
ue_cfg_t cfg = {};
|
|
srslte_cell_t cell = {};
|
|
srslte::log_ref log_h;
|
|
const std::vector<sched_cell_params_t>* cell_params_list = nullptr;
|
|
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<cc_sched_ue> carriers; ///< map of UE CellIndex to carrier configuration
|
|
std::vector<int> enb_ue_cc_idx_map;
|
|
};
|
|
|
|
using sched_ue_list = std::map<uint16_t, sched_ue>;
|
|
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSENB_SCHEDULER_UE_H
|