mirror of https://github.com/PentHertz/srsLTE.git
121 lines
3.2 KiB
C++
121 lines
3.2 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsUE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef DL_HARQ_H
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#define DL_HARQ_H
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#include "srslte/common/log.h"
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#include "srslte/common/timers.h"
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#include "mac/demux.h"
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#include "mac/dl_sps.h"
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#include "srslte/common/mac_pcap.h"
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#include "srslte/interfaces/ue_interfaces.h"
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/* Downlink HARQ entity as defined in 5.3.2 of 36.321 */
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namespace srsue {
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class dl_harq_entity
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{
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public:
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const static uint32_t NOF_HARQ_PROC = 8;
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const static uint32_t HARQ_BCCH_PID = NOF_HARQ_PROC;
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dl_harq_entity();
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bool init(srslte::log *log_h_, mac_interface_rrc::mac_cfg_t *mac_cfg, srslte::timers *timers_, demux *demux_unit);
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/***************** PHY->MAC interface for DL processes **************************/
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void new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t *action);
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void tb_decoded(bool ack, srslte_rnti_type_t rnti_type, uint32_t harq_pid);
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void reset();
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void start_pcap(srslte::mac_pcap* pcap);
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int get_current_tbs(uint32_t harq_pid);
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void set_si_window_start(int si_window_start);
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float get_average_retx();
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private:
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class dl_harq_process {
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public:
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dl_harq_process();
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bool init(uint32_t pid, dl_harq_entity *parent);
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void reset();
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bool is_sps();
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void new_grant_dl(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_dl_t *action);
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void tb_decoded(bool ack);
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int get_current_tbs();
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private:
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bool calc_is_new_transmission(mac_interface_phy::mac_grant_t grant);
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bool is_initiated;
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dl_harq_entity *harq_entity;
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srslte::log *log_h;
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bool is_new_transmission;
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uint32_t pid;
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uint8_t *payload_buffer_ptr;
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bool ack;
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uint32_t n_retx;
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mac_interface_phy::mac_grant_t cur_grant;
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srslte_softbuffer_rx_t softbuffer;
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};
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static bool generate_ack_callback(void *arg);
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uint32_t get_harq_sps_pid(uint32_t tti);
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dl_sps dl_sps_assig;
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dl_harq_process proc[NOF_HARQ_PROC+1];
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srslte::timers *timers_db;
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mac_interface_rrc::mac_cfg_t *mac_cfg;
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demux *demux_unit;
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srslte::log *log_h;
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srslte::mac_pcap *pcap;
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uint16_t last_temporal_crnti;
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int si_window_start;
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float average_retx;
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uint64_t nof_pkts;
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};
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} // namespace srsue
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#endif // DL_HARQ_H
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