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.
119 lines
4.3 KiB
C++
119 lines
4.3 KiB
C++
/**
|
|
* Copyright 2013-2022 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_DL_HARQ_NR_H
|
|
#define SRSRAN_DL_HARQ_NR_H
|
|
|
|
#include "srsran/interfaces/mac_interface_types.h"
|
|
#include "srsran/interfaces/ue_nr_interfaces.h"
|
|
#include "srsran/srslog/logger.h"
|
|
#include "srsue/hdr/stack/mac_nr/mac_nr_interfaces.h"
|
|
#include <mutex>
|
|
|
|
namespace srsue {
|
|
|
|
/**
|
|
* @brief Downlink HARQ entity as defined in 5.3.2 of 38.321
|
|
*
|
|
* The class supports a configurable number of HARQ processes (up to 16).
|
|
*
|
|
* The class is configured (init and reset) by the MAC class from the
|
|
* Stack thread context. Main functionality, however, is carried
|
|
* out from a PHY worker context.
|
|
*
|
|
* Concurrent access from threads is protected through rwlocks.
|
|
*
|
|
*/
|
|
class dl_harq_entity_nr
|
|
{
|
|
using mac_nr_grant_dl_t = mac_interface_phy_nr::mac_nr_grant_dl_t;
|
|
|
|
public:
|
|
dl_harq_entity_nr(uint8_t cc_idx_, mac_interface_harq_nr* mac_, demux_interface_harq_nr* demux_unit_);
|
|
~dl_harq_entity_nr();
|
|
|
|
int32_t set_config(const srsran::dl_harq_cfg_nr_t& cfg_);
|
|
void reset();
|
|
|
|
/// PHY->MAC interface for DL processes
|
|
void new_grant_dl(const mac_nr_grant_dl_t& grant, mac_interface_phy_nr::tb_action_dl_t* action);
|
|
void tb_decoded(const mac_nr_grant_dl_t& grant, mac_interface_phy_nr::tb_action_dl_result_t result);
|
|
|
|
float get_average_retx();
|
|
|
|
// DL HARQ metrics combined for all processes
|
|
struct dl_harq_metrics_t {
|
|
uint32_t rx_ok;
|
|
uint32_t rx_ko;
|
|
uint32_t rx_brate;
|
|
};
|
|
dl_harq_metrics_t get_metrics();
|
|
|
|
private:
|
|
class dl_harq_process_nr
|
|
{
|
|
public:
|
|
dl_harq_process_nr(dl_harq_entity_nr* parent);
|
|
~dl_harq_process_nr();
|
|
bool init(int pid);
|
|
void reset(void);
|
|
uint8_t get_ndi();
|
|
|
|
void
|
|
new_grant_dl(const mac_nr_grant_dl_t& grant, const bool& ndi_toggled, mac_interface_phy_nr::tb_action_dl_t* action);
|
|
void tb_decoded(const mac_nr_grant_dl_t& grant, mac_interface_phy_nr::tb_action_dl_result_t result);
|
|
|
|
private:
|
|
dl_harq_entity_nr* harq_entity = nullptr;
|
|
srslog::basic_logger& logger;
|
|
|
|
bool is_first_tb = true;
|
|
|
|
bool is_bcch = false;
|
|
uint32_t pid = 0; // HARQ Proccess ID
|
|
bool acked = false;
|
|
uint32_t n_retx = 0;
|
|
|
|
mac_nr_grant_dl_t current_grant = {};
|
|
std::unique_ptr<srsran_softbuffer_rx_t> softbuffer_rx;
|
|
};
|
|
|
|
// Private members of dl_harq_entity_nr
|
|
mac_interface_harq_nr* mac = nullptr;
|
|
srsran::dl_harq_cfg_nr_t cfg = {};
|
|
std::array<std::unique_ptr<dl_harq_process_nr>, SRSRAN_MAX_HARQ_PROC_DL_NR> harq_procs;
|
|
dl_harq_process_nr bcch_proc;
|
|
demux_interface_harq_nr* demux_unit = nullptr;
|
|
srslog::basic_logger& logger;
|
|
uint16_t last_temporal_crnti = SRSRAN_INVALID_RNTI;
|
|
dl_harq_metrics_t metrics = {};
|
|
std::mutex metrics_mutex;
|
|
uint8_t cc_idx = 0;
|
|
pthread_rwlock_t rwlock;
|
|
};
|
|
|
|
typedef std::unique_ptr<dl_harq_entity_nr> dl_harq_entity_nr_ptr;
|
|
typedef std::array<dl_harq_entity_nr_ptr, SRSRAN_MAX_CARRIERS> dl_harq_entity_nr_vector;
|
|
|
|
} // namespace srsue
|
|
|
|
#endif // SRSRAN_DL_HARQ_NR_H
|