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79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
/**
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* Copyright 2013-2021 Software Radio Systems Limited
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*
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* This file is part of srsRAN.
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*
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* srsRAN 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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* srsRAN 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 SRSRAN_DEMUX_NR_H
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#define SRSRAN_DEMUX_NR_H
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#include "mac_nr_interfaces.h"
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#include "srsran/common/block_queue.h"
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#include "srsran/interfaces/ue_nr_interfaces.h"
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#include "srsran/interfaces/ue_rlc_interfaces.h"
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namespace srsue {
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/**
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* @brief Logical Channel Demultiplexing and MAC CE dissassemble according to TS 38.321
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*
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* Currently only SDU handling for SCH PDU processing is implemented.
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* Downlink CE are parsed but not handled.
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*
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* PDUs can be pushed by multiple HARQ processes in parallel.
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* Handling of the PDUs is done from Stack thread which reads the enqueued PDUs
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* from the thread-safe queue.
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*/
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class demux_nr : public demux_interface_harq_nr
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{
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public:
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demux_nr(srslog::basic_logger& logger_);
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~demux_nr();
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int32_t init(rlc_interface_mac* rlc_, phy_interface_mac_nr* phy_);
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void process_pdus(); /// Called by MAC to process received PDUs
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// HARQ interface
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void push_bcch(srsran::unique_byte_buffer_t pdu);
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void push_pdu(srsran::unique_byte_buffer_t pdu, uint32_t tti);
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void push_pdu_temp_crnti(srsran::unique_byte_buffer_t pdu, uint32_t tti);
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uint64_t get_received_crueid();
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private:
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// internal helpers
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void handle_pdu(srsran::mac_sch_pdu_nr& pdu_buffer, srsran::unique_byte_buffer_t pdu);
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srslog::basic_logger& logger;
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rlc_interface_mac* rlc = nullptr;
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phy_interface_mac_nr* phy = nullptr;
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uint64_t received_crueid = 0;
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///< currently only DCH & BCH PDUs supported (add PCH, etc)
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srsran::block_queue<srsran::unique_byte_buffer_t> pdu_queue;
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srsran::block_queue<srsran::unique_byte_buffer_t> bcch_queue;
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srsran::mac_sch_pdu_nr rx_pdu;
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srsran::mac_sch_pdu_nr rx_pdu_tcrnti;
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};
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} // namespace srsue
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#endif // SRSRAN_DEMUX_NR_H
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