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/**
* Copyright 2013-2021 Software Radio Systems Limited
*
* This file is part of srsRAN.
*
* srsRAN 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.
*
* srsRAN 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 SRSRAN_UE_PHY_INTERFACES_H
#define SRSRAN_UE_PHY_INTERFACES_H
#include "srsran/srsran.h"
#include "phy_interface_types.h"
#include "rrc_interface_types.h"
#include "srsran/common/interfaces_common.h"
#include "srsran/phy/channel/channel.h"
#include <map>
#include <set>
#include <string>
namespace srsue {
struct phy_args_t {
std::string type = "lte";
srsran::phy_log_args_t log;
std::string dl_earfcn = "3400"; // comma-separated list of DL EARFCNs
std::string ul_earfcn = ""; // comma-separated list of UL EARFCNs
std::vector<uint32_t> dl_earfcn_list = {3400}; // vectorized version of dl_earfcn that gets populated during init
std::map<uint32_t, uint32_t> ul_earfcn_map; // Map linking DL EARFCN and UL EARFCN
int force_N_id_2 = -1; // Cell identity within the identity group (PSS) to filter.
float dl_freq = -1.0f;
float ul_freq = -1.0f;
bool ul_pwr_ctrl_en = false;
float prach_gain = -1;
uint32_t pdsch_max_its = 8;
bool meas_evm = false;
uint32_t nof_phy_threads = 3;
int worker_cpu_mask = -1;
int sync_cpu_affinity = -1;
uint32_t nof_lte_carriers = 1;
uint32_t nof_nr_carriers = 0;
uint32_t nr_max_nof_prb = 106;
uint32_t nof_rx_ant = 1;
std::string equalizer_mode = "mmse";
int cqi_max = 15;
int cqi_fixed = -1;
float snr_ema_coeff = 0.1f;
std::string snr_estim_alg = "refs";
bool agc_enable = true;
bool correct_sync_error = false;
bool cfo_is_doppler = false;
bool cfo_integer_enabled = false;
float cfo_correct_tol_hz = 1.0f;
float cfo_pss_ema = DEFAULT_CFO_EMA_TRACK;
float cfo_loop_bw_pss = DEFAULT_CFO_BW_PSS;
float cfo_loop_bw_ref = DEFAULT_CFO_BW_REF;
float cfo_loop_ref_min = DEFAULT_CFO_REF_MIN;
float cfo_loop_pss_tol = DEFAULT_CFO_PSS_MIN;
float sfo_ema = DEFAULT_SFO_EMA_COEFF;
uint32_t sfo_correct_period = DEFAULT_SAMPLE_OFFSET_CORRECT_PERIOD;
uint32_t cfo_loop_pss_conv = DEFAULT_PSS_STABLE_TIMEOUT;
uint32_t cfo_ref_mask = 1023;
bool interpolate_subframe_enabled = false;
bool estimator_fil_auto = false;
float estimator_fil_stddev = 1.0f;
uint32_t estimator_fil_order = 4;
float snr_to_cqi_offset = 0.0f;
std::string sss_algorithm = "full";
float rx_gain_offset = 62;
bool pdsch_csi_enabled = true;
bool pdsch_8bit_decoder = false;
uint32_t intra_freq_meas_len_ms = 20;
uint32_t intra_freq_meas_period_ms = 200;
float force_ul_amplitude = 0.0f;
float in_sync_rsrp_dbm_th = -130.0f;
float in_sync_snr_db_th = 1.0f;
uint32_t nof_in_sync_events = 10;
uint32_t nof_out_of_sync_events = 20;
srsran::channel::args_t dl_channel_args;
srsran::channel::args_t ul_channel_args;
srsran::vnf_args_t vnf_args;
};
/* RAT agnostic Interface MAC -> PHY */
class phy_interface_mac_common
{
public:
/* Time advance commands */
virtual void set_timeadv_rar(uint32_t tti, uint32_t ta_cmd) = 0;
virtual void set_timeadv(uint32_t tti, uint32_t ta_cmd) = 0;
/* Activate / Disactivate SCell*/
virtual void set_activation_deactivation_scell(uint32_t cmd, uint32_t tti) = 0;
/* Sets RAR dci payload */
virtual void set_rar_grant(uint8_t grant_payload[SRSRAN_RAR_GRANT_LEN], uint16_t rnti) = 0;
virtual uint32_t get_current_tti() = 0;
virtual float get_phr() = 0;
virtual float get_pathloss_db() = 0;
};
/* Interface MAC -> PHY */
class phy_interface_mac_lte : public phy_interface_mac_common
{
public:
typedef struct {
bool is_transmitted;
uint32_t tti_ra;
uint32_t f_id;
uint32_t preamble_format;
} prach_info_t;
virtual void
prach_send(uint32_t preamble_idx, int allowed_subframe, float target_power_dbm, float ta_base_sec = 0.0f) = 0;
virtual prach_info_t prach_get_info() = 0;
/* Indicates the transmission of a SR signal in the next opportunity */
virtual void sr_send() = 0;
virtual int sr_last_tx_tti() = 0;
virtual void set_mch_period_stop(uint32_t stop) = 0;
};
class phy_interface_rrc_lte
{
public:
virtual bool set_config(const srsran::phy_cfg_t& config, uint32_t cc_idx = 0) = 0;
virtual bool set_scell(srsran_cell_t cell_info, uint32_t cc_idx, uint32_t earfcn) = 0;
virtual void set_config_tdd(srsran_tdd_config_t& tdd_config) = 0;
virtual void set_config_mbsfn_sib2(srsran::mbsfn_sf_cfg_t* cfg_list, uint32_t nof_cfgs) = 0;
virtual void set_config_mbsfn_sib13(const srsran::sib13_t& sib13) = 0;
virtual void set_config_mbsfn_mcch(const srsran::mcch_msg_t& mcch) = 0;
virtual void deactivate_scells() = 0;
/* Measurements interface */
virtual void set_cells_to_meas(uint32_t earfcn, const std::set<uint32_t>& pci) = 0;
virtual void meas_stop() = 0;
/* Cell search and selection procedures */
virtual bool cell_search() = 0;
virtual bool cell_select(phy_cell_t cell) = 0;
virtual bool cell_is_camping() = 0;
virtual void enable_pregen_signals(bool enable) = 0;
};
// Combined interface for stack (MAC and RRC) to access PHY
class phy_interface_stack_lte : public phy_interface_mac_lte, public phy_interface_rrc_lte
{};
} // namespace srsue
#endif // SRSRAN_UE_PHY_INTERFACES_H