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151 lines
4.4 KiB
C++
151 lines
4.4 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 ULHARQ_H
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#define ULHARQ_H
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#include "common/mac_interface.h"
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#include "common/log.h"
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#include "mac/mux.h"
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#include "mac/ul_sps.h"
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#include "common/mac_pcap.h"
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#include "common/timers.h"
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/* Uplink HARQ entity as defined in 5.4.2 of 36.321 */
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namespace srsue {
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class ul_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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static uint32_t pidof(uint32_t tti);
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ul_harq_entity() {
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pcap = NULL;
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timers_db = NULL;
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mux_unit = NULL;
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log_h = NULL;
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mac_cfg = NULL;
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rntis = NULL;
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average_retx = 0;
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nof_pkts = 0;
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}
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bool init(srslte::log *log_h,
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mac_interface_rrc::ue_rnti_t *rntis,
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mac_interface_rrc::mac_cfg_t *mac_cfg,
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srslte::timers* timers_,
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mux *mux_unit);
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void reset();
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void reset_ndi();
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void start_pcap(srslte::mac_pcap* pcap);
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/***************** PHY->MAC interface for UL processes **************************/
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void new_grant_ul(mac_interface_phy::mac_grant_t grant, mac_interface_phy::tb_action_ul_t *action);
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void new_grant_ul_ack(mac_interface_phy::mac_grant_t grant, bool ack, mac_interface_phy::tb_action_ul_t *action);
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void harq_recv(uint32_t tti, bool ack, mac_interface_phy::tb_action_ul_t *action);
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int get_current_tbs(uint32_t tti);
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float get_average_retx();
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private:
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class ul_harq_process {
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public:
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ul_harq_process();
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bool init(uint32_t pid, ul_harq_entity *parent);
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void reset();
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void reset_ndi();
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void run_tti(uint32_t tti, mac_interface_phy::mac_grant_t *grant, mac_interface_phy::tb_action_ul_t* action);
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uint32_t get_rv();
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bool has_grant();
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void set_harq_feedback(bool ack);
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bool get_ndi();
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bool is_sps();
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uint32_t last_tx_tti();
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uint32_t get_nof_retx();
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int get_current_tbs();
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private:
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mac_interface_phy::mac_grant_t cur_grant;
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uint32_t pid;
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uint32_t current_tx_nb;
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uint32_t current_irv;
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bool harq_feedback;
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bool ndi;
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srslte::log *log_h;
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ul_harq_entity *harq_entity;
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bool is_grant_configured;
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srslte_softbuffer_tx_t softbuffer;
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bool is_msg3;
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bool is_initiated;
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uint32_t tti_last_tx;
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const static int payload_buffer_len = 128*1024;
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uint8_t *payload_buffer;
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uint8_t *pdu_ptr;
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void generate_retx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action);
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void generate_retx(uint32_t tti_tx, mac_interface_phy::mac_grant_t *grant,
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mac_interface_phy::tb_action_ul_t *action);
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void generate_new_tx(uint32_t tti_tx, bool is_msg3, mac_interface_phy::mac_grant_t *grant,
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mac_interface_phy::tb_action_ul_t *action);
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void generate_tx(uint32_t tti_tx, mac_interface_phy::tb_action_ul_t *action);
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};
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void run_tti(uint32_t tti, mac_interface_phy::mac_grant_t *grant, mac_interface_phy::tb_action_ul_t* action);
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void set_ack(uint32_t tti, bool ack);
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ul_sps ul_sps_assig;
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srslte::timers *timers_db;
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mux *mux_unit;
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ul_harq_process proc[NOF_HARQ_PROC];
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srslte::log *log_h;
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srslte::mac_pcap *pcap;
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mac_interface_rrc::ue_rnti_t *rntis;
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mac_interface_rrc::mac_cfg_t *mac_cfg;
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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 // ULHARQ_H
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