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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 SRSRAN_TEST_BENCH_H
#define SRSRAN_TEST_BENCH_H
#include "dummy_phy_common.h"
#include "srsenb/hdr/phy/nr/worker_pool.h"
#include "srsue/hdr/phy/nr/worker_pool.h"
class test_bench
{
private:
const std::string UE_PHY_COM_LOG_NAME = "UE /PHY/COM";
const std::string GNB_PHY_COM_LOG_NAME = "GNB/PHY/COM";
uint32_t tti = 0;
srsenb::nr::worker_pool gnb_phy;
phy_common gnb_phy_com;
srsue::nr::worker_pool ue_phy;
phy_common ue_phy_com;
bool initialised = false;
uint32_t sf_sz = 0;
public:
struct args_t {
double srate_hz = 11.52e6;
uint32_t nof_channels = 1;
uint32_t buffer_sz_ms = 10;
bool valid = false;
srsran::phy_cfg_nr_t phy_cfg = {};
srsenb::phy_cell_cfg_list_nr_t cell_list = {};
srsenb::nr::worker_pool::args_t gnb_args;
srsue::phy_args_nr_t ue_args;
uint16_t rnti = 0x1234;
std::string phy_com_log_level = "info";
args_t(int argc, char** argv);
};
test_bench(const args_t& args, srsenb::stack_interface_phy_nr& gnb_stack, srsue::stack_interface_phy_nr& ue_stack) :
ue_phy(args.ue_args.nof_phy_threads),
gnb_phy(gnb_phy_com, gnb_stack, srslog::get_default_sink(), args.gnb_args.nof_phy_threads),
ue_phy_com(phy_common::args_t(args.srate_hz, args.buffer_sz_ms, args.nof_channels),
srslog::fetch_basic_logger(UE_PHY_COM_LOG_NAME, srslog::get_default_sink(), false)),
gnb_phy_com(phy_common::args_t(args.srate_hz, args.buffer_sz_ms, args.nof_channels),
srslog::fetch_basic_logger(GNB_PHY_COM_LOG_NAME, srslog::get_default_sink(), false)),
sf_sz((uint32_t)std::round(args.srate_hz * 1e-3))
{
srslog::fetch_basic_logger(UE_PHY_COM_LOG_NAME).set_level(srslog::str_to_basic_level(args.phy_com_log_level));
srslog::fetch_basic_logger(GNB_PHY_COM_LOG_NAME).set_level(srslog::str_to_basic_level(args.phy_com_log_level));
if (not gnb_phy.init(args.gnb_args, args.cell_list)) {
return;
}
// Initialise UE PHY
if (not ue_phy.init(args.ue_args, ue_phy_com, &ue_stack, 31)) {
return;
}
// Set UE configuration
if (not ue_phy.set_config(args.phy_cfg)) {
return;
}
initialised = true;
}
~test_bench()
{
ue_phy_com.stop();
gnb_phy_com.stop();
gnb_phy.stop();
ue_phy.stop();
}
bool is_initialised() const { return initialised; }
bool run_tti()
{
// Get gNb worker
srsenb::nr::slot_worker* gnb_worker = gnb_phy.wait_worker(tti);
if (gnb_worker == nullptr) {
return false;
}
// Feed gNb the UE transmitted signal
srsran::rf_timestamp_t gnb_time = {};
std::vector<cf_t*> gnb_rx_buffers(1);
gnb_rx_buffers[0] = gnb_worker->get_buffer_rx(0);
ue_phy_com.read(gnb_rx_buffers, sf_sz, gnb_time);
// Set gNb time
gnb_time.add(TX_ENB_DELAY * 1e-3);
gnb_worker->set_time(tti, gnb_time);
// Start gNb work
gnb_phy_com.push_semaphore(gnb_worker);
gnb_phy.start_worker(gnb_worker);
// Get UE worker
srsue::nr::sf_worker* ue_worker = ue_phy.wait_worker(tti);
if (ue_worker == nullptr) {
return false;
}
// Feed UE the gNb transmitted signal
srsran::rf_timestamp_t ue_time = {};
std::vector<cf_t*> ue_rx_buffers(1);
ue_rx_buffers[0] = ue_worker->get_buffer(0, 0);
gnb_phy_com.read(ue_rx_buffers, sf_sz, ue_time);
// Set UE time
ue_time.add(TX_ENB_DELAY * 1e-3);
ue_worker->set_tti(tti);
ue_worker->set_tx_time(ue_time);
// Start gNb work
ue_phy_com.push_semaphore(ue_worker);
ue_phy.start_worker(ue_worker);
tti++;
return true;
}
};
#endif // SRSRAN_TEST_BENCH_H