mirror of https://github.com/PentHertz/srsLTE.git
120 lines
4.1 KiB
C++
120 lines
4.1 KiB
C++
/**
|
|
*
|
|
* \section COPYRIGHT
|
|
*
|
|
* Copyright 2013-2021 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_RRC_ENDC_H
|
|
#define SRSENB_RRC_ENDC_H
|
|
|
|
#include "rrc.h"
|
|
#include "rrc_ue.h"
|
|
#include "srsran/adt/fsm.h"
|
|
#include <map>
|
|
|
|
namespace srsenb {
|
|
|
|
/**
|
|
* @brief This procedure handles the secondary node (SgNB) addition for
|
|
* EUTRA-NR Dual connectivity (ENDC)
|
|
*
|
|
*/
|
|
|
|
class rrc::ue::rrc_endc : public srsran::fsm_t<rrc::ue::rrc_endc>
|
|
{
|
|
public:
|
|
// public events
|
|
struct user_crnti_upd_ev {
|
|
uint16_t crnti;
|
|
uint16_t temp_crnti;
|
|
};
|
|
struct ho_cancel_ev {
|
|
asn1::s1ap::cause_c cause;
|
|
|
|
ho_cancel_ev(const asn1::s1ap::cause_c& cause_) : cause(cause_) {}
|
|
};
|
|
|
|
rrc_endc(srsenb::rrc::ue* outer_ue);
|
|
|
|
bool fill_conn_recfg(asn1::rrc::rrc_conn_recfg_r8_ies_s* conn_recfg);
|
|
void handle_eutra_capabilities(const asn1::rrc::ue_eutra_cap_s& eutra_caps);
|
|
void handle_ue_meas_report(const asn1::rrc::meas_report_s& msg);
|
|
void handle_sgnb_addition_ack(const asn1::dyn_octstring& nr_secondary_cell_group_cfg_r15,
|
|
const asn1::dyn_octstring& nr_radio_bearer_cfg1_r15);
|
|
void handle_sgnb_addition_reject();
|
|
void handle_sgnb_addition_complete();
|
|
bool is_endc_supported();
|
|
|
|
private:
|
|
// Send SgNB addition request to gNB
|
|
bool start_sgnb_addition();
|
|
|
|
bool is_endc_activation_running() const { return not is_in_state<idle_st>(); }
|
|
|
|
rrc::ue* rrc_ue = nullptr;
|
|
rrc* rrc_enb = nullptr;
|
|
srslog::basic_logger& logger;
|
|
|
|
// vars
|
|
bool endc_supported = false;
|
|
asn1::rrc::rrc_conn_recfg_complete_s pending_recfg_complete;
|
|
|
|
// temporary storage for NR reconfiguration
|
|
asn1::dyn_octstring nr_secondary_cell_group_cfg_r15;
|
|
asn1::dyn_octstring nr_radio_bearer_cfg1_r15;
|
|
|
|
// events
|
|
struct sgnb_add_req_sent_ev {};
|
|
struct sgnb_add_req_ack_ev {};
|
|
struct sgnb_add_req_reject_ev {};
|
|
struct rrc_recfg_sent_ev {};
|
|
struct prach_nr_received_ev {};
|
|
|
|
using recfg_complete_ev = asn1::rrc::rrc_conn_recfg_complete_s;
|
|
using status_transfer_ev = asn1::s1ap::bearers_subject_to_status_transfer_list_l;
|
|
|
|
// states
|
|
struct idle_st {};
|
|
struct wait_sgnb_add_req_resp {};
|
|
struct prepare_recfg {};
|
|
struct wait_recfg_comp {};
|
|
struct wait_prach_nr {};
|
|
|
|
// FSM guards
|
|
|
|
// FSM transition handlers
|
|
void handle_recfg_complete(wait_recfg_comp& s, const recfg_complete_ev& ev);
|
|
void handle_sgnb_addition_request_sent(const sgnb_add_req_sent_ev& ev);
|
|
|
|
protected:
|
|
// states
|
|
state_list<idle_st, wait_sgnb_add_req_resp, prepare_recfg, wait_recfg_comp, wait_prach_nr>
|
|
states{this, idle_st{}, wait_sgnb_add_req_resp{}, prepare_recfg{}, wait_recfg_comp{}, wait_prach_nr{}};
|
|
|
|
// transitions
|
|
using fsm = rrc_endc;
|
|
// clang-format off
|
|
using transitions = transition_table<
|
|
// Start Target Event Action Guard
|
|
// +-----------------------+-----------------------+------------------------+----------------------------+-------------------------+
|
|
row< idle_st, wait_sgnb_add_req_resp, sgnb_add_req_sent_ev, nullptr >,
|
|
// +-----------------------+-----------------------+------------------------+----------------------------+-------------------------+
|
|
row< wait_sgnb_add_req_resp, prepare_recfg, sgnb_add_req_ack_ev >,
|
|
row< wait_sgnb_add_req_resp, idle_st, sgnb_add_req_reject_ev >,
|
|
row< prepare_recfg, wait_recfg_comp, rrc_recfg_sent_ev >,
|
|
row< wait_recfg_comp, idle_st, recfg_complete_ev, &fsm::handle_recfg_complete >
|
|
// +-----------------------+-----------------------+------------------------+----------------------------+-------------------------+
|
|
>;
|
|
// clang-format on
|
|
};
|
|
|
|
} // namespace srsenb
|
|
|
|
#endif // SRSENB_RRC_ENDC_H
|