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.
87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/**
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE 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.
|
|
*
|
|
* srsLTE 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 SRSUE_PRACH_H
|
|
#define SRSUE_PRACH_H
|
|
|
|
#include "srsran/interfaces/ue_phy_interfaces.h"
|
|
#include "srsran/radio/radio.h"
|
|
#include "srsran/srslog/srslog.h"
|
|
#include "srsran/srsran.h"
|
|
#include <bitset>
|
|
|
|
namespace srsue {
|
|
|
|
class prach
|
|
{
|
|
public:
|
|
prach(srslog::basic_logger& logger) : logger(logger) {}
|
|
~prach() { stop(); }
|
|
|
|
void init(uint32_t max_prb);
|
|
void stop();
|
|
bool set_cell(srsran_cell_t cell, srsran_prach_cfg_t prach_cfg);
|
|
bool prepare_to_send(uint32_t preamble_idx, int allowed_subframe = -1, float target_power_dbm = -1);
|
|
bool is_ready_to_send(uint32_t current_tti, uint32_t current_pci);
|
|
bool is_pending() const;
|
|
cf_t* generate(float cfo, uint32_t* nof_sf, float* target_power = NULL);
|
|
|
|
phy_interface_mac_lte::prach_info_t get_info() const;
|
|
|
|
private:
|
|
bool generate_buffer(uint32_t f_idx);
|
|
|
|
bool is_buffer_generated(uint32_t f_idx, uint32_t preamble_index) const
|
|
{
|
|
return buffer_bitmask.test(f_idx * 64 + preamble_index);
|
|
}
|
|
|
|
void set_buffer_as_generated(uint32_t f_idx, uint32_t preamble_index)
|
|
{
|
|
buffer_bitmask.set(f_idx * 64 + preamble_index);
|
|
}
|
|
|
|
private:
|
|
static constexpr unsigned MAX_LEN_SF = 3;
|
|
static constexpr unsigned max_fs = 12;
|
|
static constexpr unsigned max_preambles = 64;
|
|
|
|
srslog::basic_logger& logger;
|
|
srsran_prach_t prach_obj = {};
|
|
srsran_cell_t cell = {};
|
|
srsran_cfo_t cfo_h = {};
|
|
srsran_prach_cfg_t cfg = {};
|
|
std::array<std::array<cf_t*, max_preambles>, max_fs> buffer = {};
|
|
cf_t* signal_buffer = nullptr;
|
|
int preamble_idx = -1;
|
|
uint32_t len = 0;
|
|
int allowed_subframe = 0;
|
|
int transmitted_tti = 0;
|
|
float target_power_dbm = 0;
|
|
bool mem_initiated = false;
|
|
bool cell_initiated = false;
|
|
std::bitset<max_fs * max_preambles> buffer_bitmask;
|
|
};
|
|
|
|
} // namespace srsue
|
|
|
|
#endif // SRSUE_PRACH_H
|