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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 SRSLTE_RRC_MEAS_H_
#define SRSLTE_RRC_MEAS_H_
#include "srslte/asn1/rrc.h"
#include "srslte/asn1/rrc_utils.h"
#include "srslte/common/common.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srsue/hdr/stack/rrc/rrc.h"
#include <map>
#include <set>
namespace srsue {
using namespace asn1::rrc;
typedef std::vector<phy_cell_t> cell_triggered_t;
// TODO make this agnostic with srsenb
meas_obj_to_add_mod_s* find_meas_obj_map(std::map<uint32_t, meas_obj_to_add_mod_s>& l, uint32_t earfcn);
// RRC Measurements class
class rrc::rrc_meas
{
public:
rrc_meas() : meas_cfg(&meas_report_list), meas_report_list(&meas_cfg), logger(srslog::fetch_basic_logger("RRC")) {}
void init(rrc* rrc_ptr);
void reset();
bool parse_meas_config(const rrc_conn_recfg_r8_ies_s* meas_config, bool is_ho_reest = false, uint32_t src_earfcn = 0);
void ho_reest_actions(const uint32_t src_earfcn, const uint32_t dst_earfcn);
void run_tti();
void update_phy();
float rsrp_filter(const float new_value, const float avg_value);
float rsrq_filter(const float new_value, const float avg_value);
private:
typedef struct {
float rsrp;
float rsrq;
} phy_quant_t;
typedef enum { eutra, inter_rat } report_type_t;
class var_meas_cfg;
class var_meas_report_list
{
public:
var_meas_report_list(var_meas_cfg* meas_cfg_) : meas_cfg(meas_cfg_), logger(srslog::fetch_basic_logger("RRC")) {}
void init(rrc* rrc);
void generate_report(const uint32_t measId);
void remove_all_varmeas_reports();
void remove_varmeas_report(const uint32_t measId);
bool is_timer_expired(const uint32_t measId);
void set_measId(const uint32_t measId,
const uint32_t carrier_freq,
const report_cfg_eutra_s& report_cfg,
const cell_triggered_t& cell_triggered_list);
void set_measId(const uint32_t measId,
const uint32_t carrier_freq,
const report_cfg_inter_rat_s& report_cfg,
const cell_triggered_t& cell_triggered_list);
void upd_measId(const uint32_t measId, const cell_triggered_t& cell_triggered_list);
cell_triggered_t get_measId_cells(const uint32_t measId);
private:
void generate_report_eutra(meas_results_s* report, const uint32_t measId);
void generate_report_interrat(meas_results_s* report, const uint32_t measId);
class var_meas_report
{
public:
report_type_t report_type = eutra;
uint32_t carrier_freq = 0;
uint8_t nof_reports_sent = 0;
cell_triggered_t cell_triggered_list = {};
report_cfg_eutra_s report_cfg_eutra = {};
report_cfg_inter_rat_s report_cfg_inter = {};
srslte::timer_handler::unique_timer periodic_timer = {};
};
var_meas_cfg* meas_cfg = nullptr;
srslog::basic_logger& logger;
rrc* rrc_ptr = nullptr;
std::map<uint32_t, var_meas_report> varMeasReportList;
};
// The UE variable VarMeasConfig includes the accumulated configuration of the measurements to be performed by the
// UE, covering intra-frequency, inter-frequency and inter-RAT mobility related measurements.
class var_meas_cfg
{
public:
var_meas_cfg(var_meas_report_list* meas_report_) :
meas_report(meas_report_), logger(srslog::fetch_basic_logger("RRC"))
{}
void init(rrc* rrc);
void reset();
phy_quant_t get_filter_a();
void remove_measId(const uint32_t measId);
std::list<meas_obj_to_add_mod_s> get_active_objects();
void ho_reest_finish(const uint32_t src_earfcn, const uint32_t dst_earfcn);
bool parse_meas_config(const meas_cfg_s* meas_config, bool is_ho_reest, uint32_t src_earfcn);
void eval_triggers();
void report_triggers();
private:
void remove_varmeas_report(const uint32_t meas_id);
void measObject_removal(const meas_obj_to_rem_list_l& list);
void measObject_addmod(const meas_obj_to_add_mod_list_l& list);
void reportConfig_removal(const report_cfg_to_rem_list_l& list);
void reportConfig_addmod(const report_cfg_to_add_mod_list_l& list);
void measId_removal(const meas_id_to_rem_list_l& list);
void measId_addmod(const meas_id_to_add_mod_list_l& list);
void quantity_config(const quant_cfg_s& cfg);
void log_debug_trigger_value_eutra(const eutra_event_s::event_id_c_& e);
void log_debug_trigger_value_interrat(const report_cfg_inter_rat_s::trigger_type_c_::event_s_::event_id_c_& e);
static bool is_rsrp(report_cfg_eutra_s::trigger_quant_opts::options q);
// Helpers
void measObject_addmod_eutra(const meas_obj_to_add_mod_s& l);
void measObject_addmod_nr_r15(const meas_obj_to_add_mod_s& l);
void reportConfig_addmod_eutra(const report_cfg_to_add_mod_s& l);
void reportConfig_addmod_interrat(const report_cfg_to_add_mod_s& l);
bool reportConfig_addmod_to_reportConfigList(const report_cfg_to_add_mod_s& l);
void eval_triggers_eutra(uint32_t meas_id,
report_cfg_eutra_s& report_cfg,
meas_obj_eutra_s& meas_obj,
meas_cell_eutra* serv_cell,
float Ofs,
float Ocs);
void report_triggers_eutra(uint32_t meas_id, report_cfg_eutra_s& report_cfg, meas_obj_eutra_s& meas_obj);
void report_triggers_eutra_check_new(int32_t meas_id, report_cfg_eutra_s& report_cfg, meas_obj_eutra_s& meas_obj);
void report_triggers_eutra_check_leaving(int32_t meas_id, report_cfg_eutra_s& report_cfg);
void report_triggers_eutra_removing_trigger(int32_t meas_id);
void eval_triggers_interrat_nr(uint32_t meas_id, report_cfg_inter_rat_s& report_cfg, meas_obj_nr_r15_s& meas_obj);
void report_triggers_interrat_nr(uint32_t meas_id, report_cfg_inter_rat_s& report_cfg, meas_obj_nr_r15_s& meas_obj);
void report_triggers_interrat_check_new(int32_t meas_id,
report_cfg_inter_rat_s& report_cfg,
meas_obj_nr_r15_s& meas_obj);
void report_triggers_interrat_check_leaving(int32_t meas_id, report_cfg_inter_rat_s& report_cfg);
void report_triggers_interrat_removing_trigger(int32_t meas_id);
class cell_trigger_state
{
public:
void event_condition(const bool enter, const bool exit);
bool is_enter_equal(const uint32_t nof_tti);
bool is_exit_equal(const uint32_t nof_tti);
private:
uint32_t nof_tti_enter = 0;
uint32_t nof_tti_exit = 0;
};
// varMeasConfig data
std::map<uint32_t, meas_id_to_add_mod_s> measIdList; // Uses MeasId as key
std::map<uint32_t, meas_obj_to_add_mod_s> measObjectsList; // Uses MeasObjectId as key
std::map<uint32_t, report_cfg_to_add_mod_s> reportConfigList; // Uses ReportConfigId as key
phy_quant_t filter_a = {1.0, 1.0}; // disable filtering until quantityConfig is received (see Sec. 5.5.3.2 Note 2)
float s_measure_value = 0.0;
// trigger counters. First key is measId, second key is cell id (pci)
// It is safe to use [] operator in this double-map because all members are uint32_t
std::map<uint32_t, std::map<uint32_t, cell_trigger_state> > trigger_state;
std::map<uint32_t, std::map<uint32_t, cell_trigger_state> > trigger_state_nr;
var_meas_report_list* meas_report = nullptr;
srslog::basic_logger& logger;
rrc* rrc_ptr = nullptr;
};
std::mutex meas_cfg_mutex;
var_meas_cfg meas_cfg;
var_meas_report_list meas_report_list;
srslog::basic_logger& logger;
rrc* rrc_ptr = nullptr;
// Static functions
static uint8_t value_to_range(const report_cfg_eutra_s::trigger_quant_opts::options q, float value);
static float range_to_value(const report_cfg_eutra_s::trigger_quant_opts::options q, const uint8_t range);
static uint8_t value_to_range_nr(const asn1::rrc::thres_nr_r15_c::types_opts::options type, const float value);
static float range_to_value_nr(const asn1::rrc::thres_nr_r15_c::types_opts::options type, const uint8_t range);
static uint8_t offset_val(const meas_obj_eutra_s& meas_obj);
static asn1::dyn_array<cells_to_add_mod_s>::iterator find_pci_in_meas_obj(meas_obj_eutra_s& meas_obj, uint32_t pci);
};
} // namespace srsue
#endif // SRSLTE_SRSUE_HDR_STACK_RRC_RRC_MEAS_H_