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248 lines
9.5 KiB
C++
248 lines
9.5 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 SRSUE_RRC_NR_H
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#define SRSUE_RRC_NR_H
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#include "srsran/adt/circular_map.h"
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#include "srsran/asn1/rrc_nr.h"
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#include "srsran/asn1/rrc_nr_utils.h"
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#include "srsran/common/block_queue.h"
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#include "srsran/common/buffer_pool.h"
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#include "srsran/common/common_nr.h"
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#include "srsran/common/stack_procedure.h"
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#include "srsran/common/task_scheduler.h"
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#include "srsran/interfaces/ue_interfaces.h"
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#include "srsran/interfaces/ue_nr_interfaces.h"
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#include "srsran/interfaces/ue_rrc_interfaces.h"
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#include "srsue/hdr/stack/upper/gw.h"
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namespace srsue {
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class usim_interface_rrc_nr;
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class pdcp_interface_rrc;
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class rlc_interface_rrc;
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// Expert arguments to create GW without proper RRC
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struct core_less_args_t {
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std::string ip_addr;
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srsue::gw_args_t gw_args;
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uint8_t drb_lcid;
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};
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struct rrc_nr_args_t {
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core_less_args_t coreless;
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uint32_t sim_nr_meas_pci;
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bool pdcp_short_sn_support;
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std::string supported_bands_nr_str;
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std::vector<uint32_t> supported_bands_nr;
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std::vector<uint32_t> supported_bands_eutra;
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std::string log_level;
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uint32_t log_hex_limit;
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};
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struct rrc_nr_metrics_t {};
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class rrc_nr final : public rrc_interface_phy_nr,
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public rrc_interface_pdcp,
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public rrc_interface_rlc,
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public rrc_interface_mac,
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public rrc_nr_interface_rrc,
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public srsran::timer_callback
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{
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public:
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rrc_nr(srsran::task_sched_handle task_sched_);
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~rrc_nr();
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int init(phy_interface_rrc_nr* phy_,
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mac_interface_rrc_nr* mac_,
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rlc_interface_rrc* rlc_,
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pdcp_interface_rrc* pdcp_,
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gw_interface_rrc* gw_,
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rrc_eutra_interface_rrc_nr* rrc_eutra_,
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usim_interface_rrc_nr* usim_,
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srsran::timer_handler* timers_,
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stack_interface_rrc* stack_,
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const rrc_nr_args_t& args_);
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void stop();
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void init_core_less();
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void get_metrics(rrc_nr_metrics_t& m);
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// Timeout callback interface
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void timer_expired(uint32_t timeout_id) final;
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void srsran_rrc_log(const char* str);
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enum direction_t { Rx = 0, Tx };
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template <class T>
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void log_rrc_message(const std::string& source,
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direction_t dir,
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const srsran::byte_buffer_t* pdu,
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const T& msg,
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const std::string& msg_type);
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template <class T>
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void log_rrc_message(const std::string& source,
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direction_t dir,
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asn1::dyn_octstring oct,
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const T& msg,
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const std::string& msg_type);
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// PHY interface
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void in_sync() final;
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void out_of_sync() final;
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// RLC interface
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void max_retx_attempted() final;
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void protocol_failure() final;
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// MAC interface
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void run_tti(uint32_t tti) final;
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void ra_completed() final;
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void ra_problem() final;
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void release_pucch_srs() final;
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// PDCP interface
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void write_pdu(uint32_t lcid, srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_bcch_bch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_bcch_dlsch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_pcch(srsran::unique_byte_buffer_t pdu) final;
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void write_pdu_mch(uint32_t lcid, srsran::unique_byte_buffer_t pdu) final;
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void notify_pdcp_integrity_error(uint32_t lcid) final;
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// RRC (LTE) interface
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int get_eutra_nr_capabilities(srsran::byte_buffer_t* eutra_nr_caps);
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int get_nr_capabilities(srsran::byte_buffer_t* eutra_nr_caps);
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void phy_meas_stop();
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void phy_set_cells_to_meas(uint32_t carrier_freq_r15);
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bool rrc_reconfiguration(bool endc_release_and_add_r15,
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bool nr_secondary_cell_group_cfg_r15_present,
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asn1::dyn_octstring nr_secondary_cell_group_cfg_r15,
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bool sk_counter_r15_present,
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uint32_t sk_counter_r15,
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bool nr_radio_bearer_cfg1_r15_present,
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asn1::dyn_octstring nr_radio_bearer_cfg1_r15);
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bool configure_sk_counter(uint16_t sk_counter);
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bool is_config_pending();
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// STACK interface
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void cell_search_completed(const rrc_interface_phy_lte::cell_search_ret_t& cs_ret, const phy_cell_t& found_cell);
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private:
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srsran::task_sched_handle task_sched;
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struct cmd_msg_t {
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enum { PDU, PCCH, PDU_MCH, RLF, PDU_BCCH_DLSCH, STOP } command;
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srsran::unique_byte_buffer_t pdu;
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uint16_t lcid;
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};
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srslog::basic_logger& logger;
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bool running = false;
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srsran::block_queue<cmd_msg_t> cmd_q;
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// PHY config
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srsran::phy_cfg_nr_t phy_cfg = {};
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phy_interface_rrc_nr* phy = nullptr;
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mac_interface_rrc_nr* mac = nullptr;
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rlc_interface_rrc* rlc = nullptr;
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pdcp_interface_rrc* pdcp = nullptr;
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gw_interface_rrc* gw = nullptr;
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rrc_eutra_interface_rrc_nr* rrc_eutra = nullptr;
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usim_interface_rrc_nr* usim = nullptr;
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stack_interface_rrc* stack = nullptr;
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const uint32_t sim_measurement_timer_duration_ms = 250;
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uint32_t sim_measurement_carrier_freq_r15;
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srsran::timer_handler::unique_timer sim_measurement_timer;
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/// RRC states (3GPP 38.331 v15.5.1 Sec 4.2.1)
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enum rrc_nr_state_t {
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RRC_NR_STATE_IDLE = 0,
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RRC_NR_STATE_CONNECTED,
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RRC_NR_STATE_CONNECTED_INACTIVE,
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RRC_NR_STATE_N_ITEMS,
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};
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const static char* rrc_nr_state_text[RRC_NR_STATE_N_ITEMS];
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// rrc_nr_state_t state = RRC_NR_STATE_IDLE;
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rrc_nr_args_t args = {};
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const char* get_rb_name(uint32_t lcid) final;
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bool add_lcid_drb(uint32_t lcid, uint32_t drb_id);
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uint32_t get_lcid_for_drbid(uint32_t rdid);
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std::map<uint32_t, srsran::nr_drb> lcid_drb; // Map of lcid to drb
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std::map<uint32_t, uint32_t> drb_eps_bearer_id; // Map of drb id to eps_bearer_id
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// temporary maps for building the pucch nr resources
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srsran::static_circular_map<uint32_t, srsran_pucch_nr_resource_t, 128> pucch_res_list;
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std::map<uint32_t, srsran_csi_rs_zp_resource_t> csi_rs_zp_res;
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std::map<uint32_t, srsran_csi_rs_nzp_resource_t> csi_rs_nzp_res;
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bool apply_cell_group_cfg(const asn1::rrc_nr::cell_group_cfg_s& cell_group_cfg);
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bool apply_radio_bearer_cfg(const asn1::rrc_nr::radio_bearer_cfg_s& radio_bearer_cfg);
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bool apply_rlc_add_mod(const asn1::rrc_nr::rlc_bearer_cfg_s& rlc_bearer_cfg);
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bool apply_mac_cell_group(const asn1::rrc_nr::mac_cell_group_cfg_s& mac_cell_group_cfg);
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bool apply_sp_cell_cfg(const asn1::rrc_nr::sp_cell_cfg_s& sp_cell_cfg);
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bool apply_phy_cell_group_cfg(const asn1::rrc_nr::phys_cell_group_cfg_s& phys_cell_group_cfg);
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bool apply_dl_common_cfg(const asn1::rrc_nr::dl_cfg_common_s& dl_cfg_common);
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bool apply_ul_common_cfg(const asn1::rrc_nr::ul_cfg_common_s& ul_cfg_common);
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bool apply_sp_cell_init_dl_pdcch(const asn1::rrc_nr::pdcch_cfg_s& pdcch_cfg);
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bool apply_sp_cell_init_dl_pdsch(const asn1::rrc_nr::pdsch_cfg_s& pdsch_cfg);
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bool apply_sp_cell_ded_ul_pucch(const asn1::rrc_nr::pucch_cfg_s& pucch_cfg);
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bool apply_sp_cell_ded_ul_pusch(const asn1::rrc_nr::pusch_cfg_s& pusch_cfg);
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bool apply_csi_meas_cfg(const asn1::rrc_nr::csi_meas_cfg_s& csi_meas_cfg);
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bool apply_res_csi_report_cfg(const asn1::rrc_nr::csi_report_cfg_s& csi_report_cfg);
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bool apply_drb_add_mod(const asn1::rrc_nr::drb_to_add_mod_s& drb_cfg);
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bool apply_drb_release(const uint8_t drb);
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bool apply_security_cfg(const asn1::rrc_nr::security_cfg_s& security_cfg);
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srsran::as_security_config_t sec_cfg;
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typedef enum { mcg_srb1, en_dc_srb3, nr } reconf_initiator_t;
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class connection_reconf_no_ho_proc
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{
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public:
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explicit connection_reconf_no_ho_proc(rrc_nr* parent_);
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srsran::proc_outcome_t init(const reconf_initiator_t initiator_,
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const bool endc_release_and_add_r15,
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const bool nr_secondary_cell_group_cfg_r15_present,
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const asn1::dyn_octstring nr_secondary_cell_group_cfg_r15,
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const bool sk_counter_r15_present,
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const uint32_t sk_counter_r15,
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const bool nr_radio_bearer_cfg1_r15_present,
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const asn1::dyn_octstring nr_radio_bearer_cfg1_r15);
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srsran::proc_outcome_t step() { return srsran::proc_outcome_t::yield; }
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static const char* name() { return "NR Connection Reconfiguration"; }
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srsran::proc_outcome_t react(const bool& config_complete);
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void then(const srsran::proc_state_t& result);
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private:
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// const
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rrc_nr* rrc_ptr;
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reconf_initiator_t initiator;
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asn1::rrc_nr::rrc_recfg_s rrc_recfg;
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asn1::rrc_nr::cell_group_cfg_s cell_group_cfg;
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};
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srsran::proc_t<connection_reconf_no_ho_proc> conn_recfg_proc;
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srsran::proc_manager_list_t callback_list;
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};
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} // namespace srsue
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#endif // SRSUE_RRC_NR_H
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