WO2023011326A1 - Mac pdu的传输处理方法及装置 - Google Patents

Mac pdu的传输处理方法及装置 Download PDF

Info

Publication number
WO2023011326A1
WO2023011326A1 PCT/CN2022/108758 CN2022108758W WO2023011326A1 WO 2023011326 A1 WO2023011326 A1 WO 2023011326A1 CN 2022108758 W CN2022108758 W CN 2022108758W WO 2023011326 A1 WO2023011326 A1 WO 2023011326A1
Authority
WO
WIPO (PCT)
Prior art keywords
mac pdu
mac
transmission
retransmission
pdu
Prior art date
Application number
PCT/CN2022/108758
Other languages
English (en)
French (fr)
Inventor
苗金华
伯特兰·皮埃尔
Original Assignee
大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Publication of WO2023011326A1 publication Critical patent/WO2023011326A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a method and device for transmitting and processing MAC PDUs.
  • a Media Access Control (MAC) packet data unit refers to a packet data unit generated by the MAC layer.
  • PDU Packet Data Unit
  • Padding MAC PDU or including Padding buffer status report (Buffer Status Report, BSR) MAC control unit (Control Element, CE), Padding direct communication link buffer status report (Sidelink-BSR, SL-BSR) MAC CE, periodic BSR MAC CE (the content reported by BSR in this period is empty) and recommended bit rate query (Recommended bit rate query) MAC PDU of one or more MAC CEs in MAC CE, the transmission priority of these MAC PDUs is lower than the priority of data transmission .
  • BSR Buffer Status Report
  • CE Padding direct communication link buffer status report
  • Sidelink-BSR Segment-BSR
  • SL-BSR recommended bit rate query
  • the MAC layer will perform a retransmission operation, and the priority of the retransmission is higher than that of the newly transmitted data. As a result, the retransmission will cause a large delay impact on the newly transmitted data. .
  • the embodiments of the present disclosure provide a MAC PDU transmission processing method and device.
  • an embodiment of the present disclosure provides a method for transmitting and processing a MAC PDU of a media access control layer, which is applied to a terminal device, including:
  • the first MAC PDU includes but is not limited to at least one of the following:
  • MAC PDUs of at least one or more of the MAC CEs for filling the buffer status report BSR MAC CE, filling the direct communication link buffer status report SL-BSR MAC CE, periodic BSR MAC CE, and recommended bit rate query MAC CE, wherein, with The periodic BSR reporting content corresponding to the periodic BSR MAC CE is empty.
  • the clearing the hybrid automatic repeat request HARQ cache containing the first MAC PDU or suspending the transmission of the first MAC PDU includes:
  • the determination conditions include at least one of the following:
  • the determining that the transmission failure after the first MAC PDU is sent includes at least one of the following:
  • the terminal device receives a retransmission scheduling command from the network device
  • the terminal device receives a non-acknowledgment NACK indication fed back by the network device;
  • the suspension of the transmission of the first MAC PDU includes:
  • the retransmission includes MAC PDU retransmission, repeated transmission or multi-slot transmission;
  • the retransmission of the suspension of the first MAC PDU includes:
  • the method before the clearing of the HARQ cache containing the first MAC PDU or suspending the transmission of the first MAC PDU, the method further includes:
  • the first capability is used to indicate that the terminal device supports clearing the HARQ cache containing the first MAC PDU or suspending the first MAC PDU after transmitting the first MAC PDU transmission.
  • an embodiment of the present disclosure further provides a terminal device, including a memory, a transceiver, and a processor, where:
  • a memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; a processor for reading the computer programs in the memory and implementing the MAC described in the first aspect above The steps of the PDU transmission processing method.
  • the embodiment of the present disclosure also provides a transmission processing device for a MAC PDU of a media access control layer packet data unit, which is applied to a terminal device, including:
  • a generating unit configured to generate a first MAC PDU
  • a processing unit configured to clear the HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU;
  • the first MAC PDU includes but is not limited to at least one of the following:
  • MAC PDUs of at least one or more of the MAC CEs for filling the buffer status report BSR MAC CE, filling the direct communication link buffer status report SL-BSR MAC CE, periodic BSR MAC CE, and recommended bit rate query MAC CE, wherein, with The periodic BSR reporting content corresponding to the periodic BSR MAC CE is empty.
  • an embodiment of the present disclosure further provides a processor-readable storage medium, the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the above-mentioned first aspect.
  • the terminal device can clear the HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU after determining that the generated MAC PDU is the first MAC PDU, thereby It avoids the retransmission of the first MAC PDU from causing a large delay impact on the newly transmitted data, and ensures the timely sending of the newly transmitted data.
  • FIG. 1 is a schematic flow diagram of a MAC PDU transmission processing method provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic structural diagram of a MAC PDU transmission processing device provided by an embodiment of the present disclosure.
  • Uplink Control Information can be multiplexed into MAC PDU and transmitted to the network side, such as channel state information (Channel State Information, CSI), hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) feedback, etc.
  • channel state information Channel State Information
  • Hybrid Automatic Repeat Request Hybrid Automatic Repeat Request, HARQ
  • the MAC PDU transmitted using the Physical Uplink Shared Channel PUSCH
  • the MAC layer will also generate a Padding MAC PDU, that is, the MAC PDU does not carry any valid MAC bearer, and is an empty MAC PDU.
  • the physical layer multiplexes the UCI of the physical layer on this Padding MAC PDU, such as CSI/HARQ feedback/Scheduling Request (Scheduling Request, SR), etc.
  • Padding MAC PDU transmission fails, retransmission operations can be performed at the MAC layer.
  • UCI needs to be reorganized at the physical layer, and may even fail, so retransmitting Padding MAC PDU may retransmit an invalid UCI or even a data packet that does not carry UCI.
  • Padding BSR/Padding SL-BSR/Periodic BSR is a BSR that can be carried when there are remaining resources.
  • the transmission priority of Padding BSR/Padding SL-BSR/Periodic BSR is lower than the data priority.
  • periodic BSR refers to a periodic BSR whose reported content is empty
  • periodic BSRs described below all refer to periodic BSRs whose reported content is empty, so details are not repeated here.
  • Recommended bit rate query MAC CE is used by a terminal device (User Equipment, UE) to request a network device (such as a base station) for the bit rate recommended by the network device.
  • the MAC CE priority is also lower than the data transmission priority.
  • the MAC layer will perform a retransmission operation.
  • the priority of the retransmission is higher than that of the newly transmitted data, which will cause a greater impact on the delay of the newly transmitted data.
  • various embodiments of the present disclosure provide a solution, which can prevent the retransmission of the above-mentioned specific type of MAC PDU from causing a large delay impact on the newly transmitted data, and ensure the timely transmission of the newly transmitted data.
  • Fig. 1 is a schematic flow chart of a MAC PDU transmission processing method provided by an embodiment of the present disclosure, the method is applied to a terminal device (such as a UE), as shown in Fig. 1 , the method includes the following steps:
  • Step 100 generating a first MAC PDU.
  • the first MAC PDU includes but is not limited to at least one of the following:
  • MAC PDUs of at least one or more of the MAC CEs for filling the buffer status report BSR MAC CE, filling the direct communication link buffer status report SL-BSR MAC CE, periodic BSR MAC CE, and recommended bit rate query MAC CE, wherein, with The periodic BSR report content corresponding to the periodic BSR MAC CE is empty;
  • the terminal device may generate the first MAC PDU according to trigger conditions of different scenarios, and the trigger conditions include:
  • Scenario 1 When the terminal device finds that the PUCCH channel of the physical layer needs to transmit UCI, and the PUCCH channel collides with the configured authorization resource, but there is no data PDU to be sent at the MAC layer, at this time, the terminal device generates the first MAC PDU.
  • UCI can be multiplexed into MAC PDU and transmitted to the network side, such as CSI, HARQ feedback, etc.
  • the advantage of this is that it can save PUCCH overhead.
  • the MAC PDU transmitted by PUSCH can provide better channel reliability.
  • the MAC layer of the terminal device can generate a MAC PDU, but if the MAC layer has no data PDU to send at this time, the MAC layer of the terminal device
  • the above-mentioned first MAC PDU will be generated, such as a Padding MAC PDU or a MAC PDU containing at least one or more MAC CEs of Padding BSR MAC CE, Padding SL-BSR MAC CE, Periodic BSR MAC CE and Recommended bit rate query MAC CE.
  • Scenario 2 When the remaining resources of the uplink (Uplink, UL) are greater than or equal to the BSR or SL-BSR, the terminal device generates Padding BSR MAC CE or Padding SL-BSR MAC CE.
  • the MAC layer of the terminal device can now Generate Padding BSR MAC CE or Padding SL-BSR MAC CE for BSR or SL-BSR reporting.
  • the upper layer of the MAC layer (such as the radio resource control (Radio Resource Control, RRC) layer, the non-access (Non-Access Stratum, NAS) layer, the packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer or the wireless link
  • the control (Radio Link Control, RLC) layer) triggers the MAC entity to request the recommended bit rate from the network device.
  • the Recommended bit rate query MAC CE is used by the terminal device to request the network device for the bit rate recommended by the network device.
  • the upper layer of the MAC layer such as RRC, NAS, PDCP or RLC layer
  • the MAC layer of the terminal device will generate Recommended bit rate query MAC CE.
  • Scenario 4 When the periodic BSR timer expires, there is no buffered data on the logical channel at this time, and there is UL grant at this time, a periodic BSR is generated, but the content reported by the periodic BSR is empty.
  • the periodic BSR is a BSR that is reported periodically, but when the periodic BSR timer expires and the logical channel has no buffered data, if the terminal device determines that there is UL authorization at this time, the MAC layer of the terminal device can generate a report with empty content. Cycle BSR.
  • Step 101 Empty the HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU.
  • the terminal device may clear the HARQ cache containing the first MAC PDU after determining that the generated MAC PDU is the first MAC PDU Or suspend the transmission of the first MAC PDU, so as to avoid the transmission of the newly transmitted data being affected by the retransmission of the first MAC PDU, thereby ensuring the timely transmission of the newly transmitted data.
  • the terminal device can clear the HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU after determining that the generated MAC PDU is the first MAC PDU, thereby avoiding The retransmission of the first MAC PDU has a large delay impact on the newly transmitted data, which ensures the timely sending of the newly transmitted data.
  • the clearing of the hybrid automatic repeat request HARQ cache containing the first MAC PDU or suspending the transmission of the first MAC PDU includes:
  • the determination conditions include at least one of the following:
  • the terminal device may submit the first MAC PDU to the physical layer, and perform the first transmission attempt on the physical layer.
  • the terminal device can clear the HARQ buffer containing the first MAC PDU or suspend the first MAC PDU when certain conditions are met. transmission.
  • the above determination condition may be that the terminal device determines that the transmission priority of the first MAC PDU is lowered. For example, due to an uplink transmission resource conflict, the first MAC PDU is lowered in priority without actual transmission.
  • the terminal device clears the information containing the first MAC PDU.
  • the HARQ cache of the PDU or suspend the transmission of the first MAC PDU it can also be that the terminal device determines that the MAC entity has received a physical layer LBT failure indication, indicating that the first MAC PDU has not been actually sent.
  • the terminal device clears the first MAC PDU containing The HARQ buffer or suspend the transmission of the first MAC PDU; it may also be that the terminal device determines that the transmission fails after the first MAC PDU is sent, and the terminal device clears the HARQ buffer containing the first MAC PDU or suspends the transmission of the first MAC PDU.
  • the terminal device can clear the HARQ buffer containing the first MAC PDU or suspend the transmission of the first MAC PDU when certain conditions are met, thereby avoiding the transmission of the first MAC PDU
  • the retransmission has a large delay impact on the newly transmitted data, which ensures the timely sending of the newly transmitted data.
  • determining that the transmission failure after the first MAC PDU is sent includes at least one of the following:
  • the terminal device receives a retransmission scheduling command from the network device
  • the terminal device receives a non-acknowledgment NACK indication fed back by the network device;
  • Said suspending the transmission of the first MAC PDU includes:
  • the terminal device determines that the transmission fails after the first MAC PDU is sent, it may be that the terminal device receives a retransmission scheduling command from the network device (such as a base station), that is, the retransmission of the first MAC PDU sent by the network device to the terminal device Scheduling command; it can also be a non-acknowledgment (Non-Acknowledge, NACK) indication that the terminal equipment receives feedback from the network equipment, that is, the NACK indication that the network equipment feeds back to the terminal equipment that the first MAC PDU has not been received; it can also be a configuration authorization reconfiguration The transmission timer expires.
  • the network device such as a base station
  • NACK non-acknowledgment
  • NACK Non-Acknowledge
  • the terminal device may suspend the transmission of the first MAC PDU, including suspending the retransmission of the first MAC PDU, when the above determination conditions are met.
  • MAC PDU retransmission that is, the retransmission of MAC PDU
  • the HARQ process identifier (Identifier, ID) remains unchanged, but the redundancy version (Redundancy Version, RV) will be updated according to the number of retransmissions
  • repeated transmission that is, the same data
  • the packet is repeatedly sent N times on continuous time domain resources, and N is the number of retransmissions configured by RRC.
  • the HARQ process ID remains unchanged, but the RV version will be updated according to the pre-configured order
  • multi-slot transmission That is, the network device is configured to have multiple UL grants in consecutive time slots or in the same time slot, and the HARQ processes of the multiple UL grants may be different.
  • the terminal device can suspend the retransmission of the first MAC PDU when certain conditions are met, thereby avoiding the retransmission of the first MAC PDU from causing a large impact on the newly transmitted data.
  • the impact of the delay ensures the timely delivery of newly transmitted data.
  • the method further includes:
  • the first capability is used to indicate that the terminal device supports clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU after transmitting the first MAC PDU.
  • the terminal device may report the first capability to the network device before clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU, and the first capability is used to inform the network device that The terminal device supports clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU after transmitting the first MAC PDU, so that the network device can instruct the terminal device to transmit the first MAC PDU (regardless of whether the transmission is successful). Empty the HARQ buffer containing the first MAC PDU or suspend the transmission of the first MAC PDU.
  • the terminal device can report the first capability to the network device, and according to the instruction of the network device, after transmitting the first MAC PDU, clear the HARQ buffer containing the first MAC PDU or suspend the first MAC PDU The transmission of one MAC PDU, thereby avoiding the retransmission of the first MAC PDU to cause a large delay impact on the newly transmitted data, and ensuring the timely transmission of the newly transmitted data.
  • Embodiment 1 After the UE submits the first MAC PDU to the physical layer, clears the HARQ process cache storing the first MAC PDU.
  • Step 1 (optional): The UE reports the first capability to the network device, and the first capability is used to indicate that the UE supports clearing the HARQ process buffer after transmitting the first MAC PDU.
  • the first MAC PDU includes but is not limited to at least one of the following:
  • Step 2 (optional): The network device sends configuration information to the terminal, and the configuration information instructs the UE to clear the HARQ process cache after transmitting the first MAC PDU.
  • the network device can send configuration information to the UE, and specify in the configuration information that the UE needs to clear the MAC PDU type cached by the HARQ process, and instruct the UE to clear the corresponding HARQ PDU only after transmitting this type of MAC PDU. process cache.
  • the MAC PDU type specified in the configuration information may include but not limited to at least one of the following:
  • Step 3 After the UE performs data transmission, it generates the first MAC PDU according to the trigger condition.
  • Trigger conditions include:
  • Scenario 1 When the UE finds that the PUCCH channel of the physical layer needs to transmit UCI, and the PUCCH channel collides with the configured authorization resource, but the MAC layer has no data PDU to send, at this time, the UE generates the first MAC PDU.
  • Scenario 2 When the remaining UL resources are greater than or equal to BSR or SL-BSR; at this time, UE generates Padding BSR MAC CE or Padding SL-BSR MAC CE.
  • the upper layer of the MAC layer (such as RRC, NAS, PDCP or RLC) can trigger the MAC entity to request the recommended bit rate from the network device.
  • Scenario 4 When the periodic BSR timer expires, there is no buffered data on the logical channel at this time, and there is UL grant at this time, a periodic BSR is generated, but the content reported by the periodic BSR is empty.
  • Step 4 After the UE submits the first MAC PDU to the physical layer, the UE clears the HARQ process cache storing the first MAC PDU.
  • steps 1 and 2 are optional steps in the embodiment, that is, the above embodiment 1 may include steps 1 to 4, or may only include steps 2, 3 and 4, or may only include steps Step 3 and Step 4 (in this case, which type of MAC PDU's HARQ process cache to clear may depend on the UE's autonomous implementation).
  • Embodiment 2 The UE skips retransmission or repeated transmission or multi-slot transmission of the first MAC PDU.
  • Step 1 (optional): The UE reports the first capability to the network device, and the first capability is used to indicate that the UE supports skipping the first MAC PDU retransmission or repeated transmission or multi-slot transmission after transmitting the first MAC PDU .
  • the first MAC PDU includes but is not limited to at least one of the following:
  • Step 2 (optional): The network device sends configuration information to the terminal device, instructing the UE to skip retransmission or repeated transmission or multi-slot transmission of the first MAC PDU after transmitting the first MAC PDU.
  • the network device can send configuration information to the UE, and specify in the configuration information the type of MAC PDU that the UE needs to skip retransmission, and instruct the UE to skip the type of MAC PDU only after transmitting this type of MAC PDU Retransmission of MAC PDU.
  • retransmission includes MAC PDU retransmission, repeated transmission or multi-slot transmission.
  • the MAC PDU type specified in the configuration information may include but not limited to at least one of the following:
  • Step 3 After the UE performs data transmission, it generates the first MAC PDU according to the trigger condition.
  • Trigger conditions include:
  • Scenario 1 When the UE finds that the PUCCH channel of the physical layer needs to transmit UCI, and the PUCCH channel collides with the configured authorization resource, but there is no data PDU to be sent at the MAC layer, at this time, the UE generates the first MAC PDU.
  • Scenario 2 When the remaining UL resources are greater than or equal to BSR or SL-BSR; at this time, UE generates Padding BSR MAC CE or Padding SL-BSR MAC CE.
  • the upper layer of the MAC layer (such as RRC, NAS, PDCP or RLC) can trigger the MAC entity to request the recommended bit rate from the network device.
  • Scenario 4 When the periodic BSR timer expires, there is no buffered data on the logical channel at this time, and there is UL grant at this time, a periodic BSR is generated, but the content reported by the periodic BSR is empty.
  • Step 4 After the UE submits the first MAC PDU to the physical layer, if retransmission occurs and the retransmission collides with other data, the UE will skip the retransmission of the first MAC PDU, and the UE will execute other data priority sending.
  • the conditions for retransmission can be at least one of the following:
  • the Downlink Feedback Indication (DFI) feedback sent by the network device is NACK;
  • the above retransmission includes MAC PDU retransmission, repeated transmission or multi-slot transmission.
  • MAC PDU retransmission that is, the retransmission of MAC PDU
  • the HARQ process ID remains unchanged, but the RV version will be updated according to the number of retransmissions.
  • N is the number of retransmissions configured by RRC.
  • the HARQ process ID remains unchanged, but the RV version will be based on the pre-configured order to update.
  • Multi-slot transmission means that the network device is configured to have multiple UL grants in consecutive time slots or in the same time slot, and the HARQ processes of multiple UL grants may be different.
  • steps 1 and 2 are optional steps in the embodiment, that is, the above embodiment 2 may include steps 1 to 4, or may only include steps 2, 3 and 4, or may only include steps Step 3 and Step 4 (in this case, which type of retransmission of the MAC PDU to skip may depend on the UE's autonomous implementation).
  • FIG. 2 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure.
  • the terminal device includes a memory 220, a transceiver 210, and a processor 200; wherein, the processor 200 and the memory 220 can also be arranged physically separately .
  • the memory 220 is used to store computer programs; the transceiver 210 is used to send and receive data under the control of the processor 200 .
  • the transceiver 210 is used to receive and transmit data under the control of the processor 200 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 200 and various circuits of the memory represented by the memory 220 are linked together.
  • the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described in this disclosure.
  • the bus interface provides the interface.
  • Transceiver 210 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media.
  • the user interface 230 can also be an interface capable of connecting externally and internally to required equipment, and the connected equipment includes but is not limited to a keypad, display, speaker, microphone, joystick, etc.
  • the processor 200 is responsible for managing the bus architecture and general processing, and the memory 220 can store data used by the processor 200 when performing operations.
  • the processor 200 can be a central processing unit (Central Processing Unit, CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the processor 200 calls the computer program stored in the memory 220 to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions, for example: generating the first MAC PDU; clearing the mixed automatic Retransmission request HARQ cache or suspend the transmission of the first MAC PDU; the first MAC PDU includes but is not limited to at least one of the following: filling MAC PDU; including filling buffer status report BSR MAC CE, filling direct communication link buffer status report SL- BSR MAC CE, periodic BSR MAC CE, and MAC PDU of at least one or more MAC CEs in the recommended bit rate query MAC CE, where the periodic BSR report content corresponding to the periodic BSR MAC CE is empty.
  • the clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU includes: clearing the hybrid automatic repeat request containing the first MAC PDU when the determined condition is met Request HARQ buffer or suspend the transmission of the first MAC PDU;
  • the determination condition includes at least one of the following: determine that the first MAC PDU is lowered in transmission priority; determine that the MAC entity associated with the first MAC PDU receives the physical layer and listens first After that, the LBT failure indication; it is determined that the transmission fails after the first MAC PDU is sent.
  • the determining that the transmission failure after the first MAC PDU is sent includes at least one of the following: the terminal device receives a retransmission scheduling command from the network device; the terminal device receives a non-acknowledgment NACK indication fed back by the network device; configuration authorization retransmission Transmission timer timed out;
  • the suspending the transmission of the first MAC PDU includes: suspending the retransmission of the first MAC PDU.
  • the retransmission includes MAC PDU retransmission, repeated transmission or multi-slot transmission;
  • the suspending the retransmission of the first MAC PDU includes: suspending all retransmissions of the first MAC PDU.
  • the method before clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU, the method further includes: reporting the first capability to the network device, the first capability is used to indicate that the terminal device supports the transmission of the first MAC PDU After the first MAC PDU, empty the HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU.
  • FIG. 3 is a schematic structural diagram of a MAC PDU transmission processing device provided by an embodiment of the present disclosure. The device is applied to a terminal device. As shown in FIG. 3 , the device includes:
  • a generating unit 300 configured to generate a first MAC PDU
  • the processing unit 310 is used to clear the hybrid automatic repeat request HARQ cache containing the first MAC PDU or suspend the transmission of the first MAC PDU;
  • the first MAC PDU includes but is not limited to at least one of the following:
  • MAC PDUs of at least one or more of the MAC CEs for filling the buffer status report BSR MAC CE, filling the direct communication link buffer status report SL-BSR MAC CE, periodic BSR MAC CE, and recommended bit rate query MAC CE, wherein, with The periodic BSR report corresponding to the periodic BSR MAC CE is empty.
  • the clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU includes: clearing the hybrid automatic repeat request containing the first MAC PDU when the determined condition is met Request HARQ buffer or suspend the transmission of the first MAC PDU;
  • the determination condition includes at least one of the following: determine that the first MAC PDU is lowered in transmission priority; determine that the MAC entity associated with the first MAC PDU receives the physical layer and listens first After that, the LBT failure indication; it is determined that the transmission fails after the first MAC PDU is sent.
  • the determining that the transmission failure after the first MAC PDU is sent includes at least one of the following: the terminal device receives a retransmission scheduling command from the network device; the terminal device receives a non-acknowledgment NACK indication fed back by the network device; configuration authorization retransmission Transmission timer timed out;
  • the suspending the transmission of the first MAC PDU includes: suspending the retransmission of the first MAC PDU.
  • the retransmission includes MAC PDU retransmission, repeated transmission or multi-slot transmission;
  • the suspension of the retransmission of the first MAC PDU includes: suspending all retransmissions of the first MAC PDU.
  • the device also includes:
  • the reporting unit is configured to report the first capability to the network device, and the first capability is used to indicate that the terminal device supports clearing the HARQ buffer containing the first MAC PDU or suspending the transmission of the first MAC PDU after transmitting the first MAC PDU.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a processor-readable storage medium.
  • the technical solution of the present disclosure is essentially or part of the contribution to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .
  • the MAC PDU transmission processing method includes: generating the first MAC PDU; clearing the hybrid automatic repeat request HARQ cache containing the first MAC PDU or suspending the transmission of the first MAC PDU; the first MAC PDU includes but is not limited to at least one of the following : Filling MAC PDU; including filling buffer status report BSR MAC CE, filling direct communication link buffer status report SL-BSR MAC CE, periodic BSR MAC CE and recommended bit rate query MAC CE of at least one or more MAC CEs PDU, wherein the periodic BSR report content corresponding to the periodic BSR MAC CE is empty.
  • the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including but not limited to magnetic storage (e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.
  • magnetic storage e.g., floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage e.g., CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)
  • the terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • the name of the terminal equipment may be different.
  • the terminal equipment may be called User Equipment (User Equipment, UE).
  • the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • a mobile terminal equipment such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
  • PCS Personal Communication Service
  • SIP Session Initiated Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in the embodiments of the present disclosure.
  • the network device involved in the embodiments of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals.
  • the base station can also be called an access point, or it can be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names.
  • the network device can be used to interchange received over-the-air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, which can include the Internet Protocol (IP) communication network.
  • IP Internet Protocol
  • Network devices may also coordinate attribute management for the air interface.
  • the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) ), it can also be a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or it can be an evolved network device in a long-term evolution (long term evolution, LTE) system (evolutional Node B, eNB or e-NodeB), 5G base station (gNB) in the 5G network architecture (next generation system), can also be a home evolved base station (Home evolved Node B, HeNB), relay node (relay node) , a home base station (femto), a pico base station (pico), etc., are not limited in this embodiment of the present disclosure.
  • a network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node
  • the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) having computer-usable program code embodied therein.
  • processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, such that the instructions stored in the processor-readable memory produce a manufacturing product, the instruction device realizes the functions specified in one or more procedures of the flow chart and/or one or more blocks of the block diagram.
  • processor-executable instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented
  • the executed instructions provide steps for implementing the functions specified in the procedure or procedures of the flowchart and/or the block or blocks of the block diagrams.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

本公开实施例提供一种MAC PDU的传输处理方法及装置，该方法应用于终端设备，包括：生成第一MAC PDU；清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；第一MAC PDU包括但不限于以下至少一种：填充MAC PDU；包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，周期BSR上报内容为空。从而保证了新传数据的及时发送。

Description

MAC PDU的传输处理方法及装置
相关申请的交叉引用
本申请要求于2021年08月03日提交的申请号为2021108881483，发明名称为“MAC PDU的传输处理方法及装置”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本公开涉及通信技术领域，尤其涉及一种MAC PDU的传输处理方法及装置。
背景技术
媒体介入控制(Media Access Control，MAC)分组数据单元(Packet Data Unit，PDU)是指MAC层生成的分组数据单元，现有技术中，MAC层在执行数据传输后，可以根据不同触发条件生成填充(Padding)MAC PDU或包括Padding缓存状态报告(Buffer Status Report，BSR)MAC控制单元(Control Element，CE)、Padding直接通信链路缓存状态报告(Sidelink-BSR，SL-BSR)MAC CE、周期BSR MAC CE(该周期BSR上报内容为空)和推荐比特速率查询(Recommended bit rate query)MAC CE中的一个或多个MAC CE的MAC PDU，这些MAC PDU的传输优先级低于数据传输的优先级。然而，当这些MAC PDU发送失败后，MAC层会执行重传操作，重传的优先级要高于新传数据的优先级，由此导致重传会对新传数据造成较大的时延影响。
发明内容
针对现有技术存在的问题，本公开实施例提供一种MAC PDU的传输处理方法及装置。
第一方面，本公开实施例提供一种媒体介入控制层分组数据单元MAC PDU的传输处理方法，应用于终端设备，包括：
生成第一MAC PDU；
清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
所述第一MAC PDU包括但不限于以下至少一种：
填充MAC PDU；
包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与所述周期BSR MAC CE相对应的周期BSR上报内容为空。
可选地，所述清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输，包括：
在满足确定条件的情况下，清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
所述确定条件包括以下至少一项：
确定所述第一MAC PDU被降传输优先级；
确定与所述第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；
确定所述第一MAC PDU被发送后传输失败。
可选地，所述确定所述第一MAC PDU被发送后传输失败包括以下至少一项：
所述终端设备接收到网络设备的重传调度命令；
所述终端设备接收到网络设备反馈的非确认NACK指示；
配置授权重传定时器超时；
所述暂停所述第一MAC PDU的传输，包括：
暂停所述第一MAC PDU的重传。
可选地，所述重传包括MAC PDU重传、重复传输或多时隙传输；
所述暂停所述第一MAC PDU的重传，包括：
暂停所述第一MAC PDU的全部重传。
可选地，所述清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输之前，所述方法还包括：
向网络设备上报第一能力，所述第一能力用于指示所述终端设备支持在传输所述第一MAC PDU后，清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输。
第二方面，本公开实施例还提供一种终端设备，包括存储器，收发机，处理器，其中：
存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并实现如上所述第一方面所述的MAC PDU的传输处理方法的步骤。
第三方面，本公开实施例还提供一种媒体介入控制层分组数据单元MAC PDU的传输处理装置，应用于终端设备，包括：
生成单元，用于生成第一MAC PDU；
处理单元，用于清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
所述第一MAC PDU包括但不限于以下至少一种：
填充MAC PDU；
包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与所述周期BSR MAC CE相对应的周期BSR上报内容为空。
第四方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行如上所述第一方面所述的MAC PDU的传输处理方法的步骤。
本公开实施例提供的MAC PDU的传输处理方法及装置，终端设备可以在确定生成的MAC PDU为第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，从而避免了第一MAC PDU的重传对新传数据造成较大的时延影响，保证了新传数据的及时发送。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本公开实施例提供的MAC PDU的传输处理方法的流程示意图；
图2是本公开实施例提供的终端设备的结构示意图；
图3是本公开实施例提供的MAC PDU的传输处理装置的结构示意图。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本公开实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，并不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
为了便于更加清晰地理解本公开各实施例，首先对一些相关的背景知识进行如下介绍。
(1)Padding MAC PDU
在新无线(New Radio，NR)中，上行控制信息(Uplink Control Information，UCI)可以复用到MAC PDU中传输给网络侧，例如信道状态信息(Channel State Information，CSI)、混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈等，这样做的好处是，可以节省物理上行控制信道(Physical Uplink Control Channel，PUCCH)开销。同时，利用物理上行共享信道(Physical  Uplink Shared Channel，PUSCH)传输的MAC PDU可以提供更好的信道可靠性。如果MAC层此时没有数据时，MAC层同样要生成一个Padding MAC PDU，即该MAC PDU没有携带任何有效的MAC承载，是一个空的MAC PDU。物理层在这个Padding MAC PDU上复用物理层的UCI，例如CSI/HARQ反馈/调度请求(Schedueling Request，SR)等。
如果Padding MAC PDU传输失败，在MAC层可以执行重传操作。但UCI在物理层需要重组，甚至有可能失效，所以重传Padding MAC PDU，可能会重传一个无效的UCI甚至是没有携带UCI的数据包。
(2)Padding BSR/Padding SL-BSR/周期BSR
Padding BSR/Padding SL-BSR/周期BSR是在存在剩余的资源时，可以携带的BSR。Padding BSR/Padding SL-BSR/周期BSR的传输优先级要低于数据优先级。
需要说明的是，上述周期BSR指的是上报内容为空的周期BSR，且下文所述周期BSR均指上报内容为空的周期BSR，不再赘述。
(3)Recommended bit rate query MAC CE
Recommended bit rate query MAC CE用于终端设备(User Equipment，UE)向网络设备(例如基站)请求网络设备推荐的比特速率。该MAC CE优先级也低于数据传输优先级。
在现有技术中，当Padding MAC PDU，或Padding BSR，或Padding SL-BSR，或周期BSR，或Recommended bit rate query MAC CE发送失败后，MAC层会执行重传操作。重传的优先级要高于新传数据的优先级，由此会对新传数据造成较大的时延影响。
针对上述问题，本公开各实施例提供一种解决方案，能够避免上述特定类型MAC PDU的重传对新传数据造成较大的时延影响，保证新传数据的及时发送。
图1为本公开实施例提供的MAC PDU的传输处理方法的流程示意图，该方法应用于终端设备(例如UE)，如图1所示，该方法包括如下步骤：
步骤100、生成第一MAC PDU。
所述第一MAC PDU包括但不限于以下至少一种：
填充MAC PDU；
包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与周期BSR MAC CE相对应的周期BSR上报内容为空；
具体地，终端设备在执行数据传输后，可以根据不同场景的触发条件生成第一MAC PDU，触发条件包括：
场景1：当终端设备发现物理层PUCCH信道需要传输UCI，且PUCCH信道与配置授权资源相碰撞，但MAC层没有数据PDU需要发送，此时，终端设备生成第一MAC PDU。
具体地，在NR中，UCI可以复用到MAC PDU中传输给网络侧，例如CSI、HARQ反馈等，这样做的好处是，可以节省PUCCH开销。同时，利用PUSCH传输的MAC PDU可以提供更好的信道可靠性。当终端设备发现物理层PUCCH信道需要传输UCI，并且PUCCH信道与配置授权资源相碰撞时，终端设备的MAC层可以生成MAC PDU，但如果此时MAC层没有数据PDU需要发送，终端设备的MAC层将生成上述第一MAC PDU，例如Padding MAC PDU或包含Padding BSR MAC CE、Padding SL-BSR MAC CE、周期BSR MAC CE以及Recommended bit rate query MAC CE中的至少一个或多个MAC CE的MAC PDU。
场景2：当上行(Uplink，UL)剩余的资源大于或等于BSR或SL-BSR，此时终端设备生成Padding BSR MAC CE或Padding SL-BSR MAC CE。
具体地，终端设备在执行数据传输后，若确定UL剩余的资源大于或等于BSR或SL-BSR，表明还有剩余的UL资源可以传输BSR或SL-BSR，则终端设备的MAC层此时可以生成Padding BSR MAC CE或Padding SL-BSR MAC CE，以进行BSR或SL-BSR的上报。
场景3：MAC层上层(例如无线资源控制(Radio Resource Control，RRC)层、非接入(Non-Access Stratum，NAS)层、分组数据汇聚协议(Packet Data  Convergence Protocol，PDCP)层或无线链路控制(Radio Link Control，RLC)层)触发MAC实体向网络设备请求推荐比特速率。
具体地，Recommended bit rate query MAC CE用于终端设备向网络设备请求网络设备推荐的比特速率，当MAC层上层(例如RRC、NAS、PDCP或RLC层)触发MAC实体向网络设备请求推荐比特速率时，终端设备的MAC层将生成Recommended bit rate query MAC CE。
场景4：当周期BSR定时器超时，此时逻辑信道没有缓存数据，且此时有UL授权时，生成周期BSR，但周期BSR上报内容为空。
具体地，周期BSR为周期上报的BSR，但当周期BSR定时器超时，逻辑信道却没有缓存数据时，若终端设备确定此时有UL授权，则终端设备的MAC层可以生成上报内容为空的周期BSR。
步骤101、清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输。
具体地，本公开实施例中，为避免第一MAC PDU重传影响到新传数据的传输，终端设备可以在确定生成的MAC PDU为第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，以避免新传数据的传输受到第一MAC PDU重传的影响，从而保证了新传数据的及时发送。
本公开实施例提供的MAC PDU的传输处理方法，终端设备可以在确定生成的MAC PDU为第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，从而避免了第一MAC PDU的重传对新传数据造成较大的时延影响，保证了新传数据的及时发送。
可选地，所述清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输，包括：
在满足确定条件的情况下，清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；
所述确定条件包括以下至少一项：
确定第一MAC PDU被降传输优先级；
确定与第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；
确定第一MAC PDU被发送后传输失败。
具体地，本公开实施例中，终端设备在生成第一MAC PDU后，可以将第一MAC PDU递交到物理层，并在物理层进行第一次传输尝试。为避免第一MAC PDU发送失败后MAC层执行重传操作，影响新传数据的传输，终端设备可以在满足确定条件的情况下，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。其中，上述确定条件可以是终端设备确定第一MAC PDU被降传输优先级，例如由于上行传输资源冲突，第一MAC PDU被降优先级而没有实际传输，此时，终端设备清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输；也可以是终端设备确定MAC实体接收到物理层LBT失败指示，表明第一MAC PDU未能实际发送，此时，终端设备清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输；也可以是终端设备确定第一MAC PDU被发送后传输失败，终端设备清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。
本公开实施例提供的MAC PDU的传输处理方法，终端设备可以在满足确定条件的情况下，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，从而避免了第一MAC PDU的重传对新传数据造成较大的时延影响，保证了新传数据的及时发送。
可选地，所述确定第一MAC PDU被发送后传输失败包括以下至少一项：
终端设备接收到网络设备的重传调度命令；
终端设备接收到网络设备反馈的非确认NACK指示；
配置授权重传定时器超时；
所述暂停第一MAC PDU的传输，包括：
暂停第一MAC PDU的重传。
具体地，终端设备确定第一MAC PDU被发送后传输失败，可以是终端设备接收到网络设备(例如基站)的重传调度命令，即网络设备向终端设备发送的针对第一MAC PDU的重传调度命令；也可以是终端设备接收到网络 设备反馈的非确认(Non-Acknowledge，NACK)指示，即网络设备向终端设备反馈的未收到第一MAC PDU的NACK指示；也可以是配置授权重传定时器超时。
终端设备可以在满足上述确定条件的情况下，暂停第一MAC PDU的传输，包括暂停第一MAC PDU的重传。可选地，重传可以包括MAC PDU重传、重复传输或多时隙传输；暂停第一MAC PDU的重传可以包括暂停第一MAC PDU的全部重传，即无论是MAC PDU重传、重复传输还是多时隙传输，终端设备均暂停执行。
其中，MAC PDU重传，即MAC PDU的重传，HARQ进程标识(Identifier，ID)不变，但冗余版本(Redundancy Version，RV)会根据重传次数进行更新；重复传输，即同一个数据包在连续的时域资源上重复发送N次，N为RRC配置的重传次数，N次传输过程中，HARQ进程ID不变，但是RV版本会根据预先配置的顺序进行更新；多时隙传输，即网络设备配置在连续时隙或同一个时隙内存在多个UL授权，多个UL授权的HARQ进程可以不一样。
本公开实施例提供的MAC PDU的传输处理方法，终端设备可以在满足确定条件的情况下，暂停第一MAC PDU的重传，从而避免了第一MAC PDU的重传对新传数据造成较大的时延影响，保证了新传数据的及时发送。
可选地，所述清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输之前，所述方法还包括：
向网络设备上报第一能力，第一能力用于指示终端设备支持在传输第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。
具体地，本公开实施例中，终端设备可以在清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输之前，向网络设备上报第一能力，该第一能力用于告知网络设备，终端设备支持在传输第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，从而网络设备可以指示终端设备在传输第一MAC PDU(无论是否传输成功)后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。
本公开实施例提供的MAC PDU的传输处理方法，终端设备可以向网络设备上报第一能力，根据网络设备的指示，在传输第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输，从而避免了第一MAC PDU的重传对新传数据造成较大的时延影响，保证了新传数据的及时发送。
下面通过具体实施例对上述MAC PDU的传输处理方法进行举例说明。
实施例一：UE在向物理层递交第一MAC PDU后，清空存储所述第一MAC PDU的HARQ进程缓存。
步骤一(可选的)：UE向网络设备上报第一能力，所述第一能力用于指示UE支持在传输第一MAC PDU后，清空HARQ进程缓存。
所述第一MAC PDU包括但不限于以下至少一种：
Padding MAC PDU；
包含Padding BSR MAC CE、Padding SL-BSR MAC CE、周期BSR MAC CE以及Recommended bit rate query MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，周期BSR上报内容为空。
步骤二(可选的)：网络设备向终端发送配置信息，所述配置信息指示UE在传输第一MAC PDU后，清空HARQ进程缓存。
具体地，该步骤中，网络设备可以向UE发送配置信息，并在配置信息中规定UE需要清空HARQ进程缓存的MAC PDU类型，指示UE只在传输该类型的MAC PDU后，才清空对应的HARQ进程缓存。
配置信息中规定的MAC PDU类型可以包括但不限于以下至少一种：
Padding MAC PDU；
包含Padding BSR MAC CE、Padding SL-BSR MAC CE、周期BSR MAC CE以及Recommended bit rate query MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，周期BSR上报内容为空。
步骤三：UE执行数据传输后，根据触发条件生成第一MAC PDU。
触发条件包括：
场景1：当UE发现物理层PUCCH信道需要传输UCI，且PUCCH信道 与配置授权资源相碰撞，但MAC层没有数据PDU需要发送，此时，UE生成第一MAC PDU。
场景2：当UL剩余的资源大于等于BSR或SL-BSR；此时UE生成Padding BSR MAC CE或Padding SL-BSR MAC CE。
场景3：MAC层上层(例如RRC、NAS、PDCP或RLC)可以触发MAC实体向网络设备请求推荐比特速率。
场景4：当周期BSR定时器超时，此时逻辑信道没有缓存数据，且此时有UL授权时，生成周期BSR，但周期BSR上报内容为空。
步骤四：当UE将上述第一MAC PDU递交给物理层后，UE清空存储所述第一MAC PDU的HARQ进程缓存。
需要说明的是，上述步骤一和步骤二均为可选的实施例步骤，即上述实施例一可以包括步骤一至步骤四，也可以仅包括步骤二、步骤三和步骤四，还可以仅包括步骤三和步骤四(这种情况下，清空哪种类型MAC PDU的HARQ进程缓存，可以取决于UE自主实现)。
实施例二：UE跳过第一MAC PDU重传或重复传输或多时隙传输。
步骤一(可选的)：UE向网络设备上报第一能力，所述第一能力用于指示UE支持在传输第一MAC PDU后，跳过第一MAC PDU重传或重复传输或多时隙传输。
所述第一MAC PDU包括但不限于以下至少一种：
Padding MAC PDU；
包含Padding BSR MAC CE、Padding SL-BSR MAC CE、周期BSR MAC CE以及Recommended bit rate query MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，周期BSR上报内容为空。
步骤二(可选的)：网络设备向终端设备发送配置信息，指示UE在传输第一MAC PDU后，跳过第一MAC PDU重传或重复传输或多时隙传输。
具体地，该步骤中，网络设备可以向UE发送配置信息，并在配置信息中规定UE需要跳过重传的MAC PDU类型，指示UE只在传输该类型的MAC PDU后，才跳过该类型MAC PDU的重传。其中，重传包括MAC PDU重传、 重复传输或多时隙传输。
配置信息中规定的MAC PDU类型可以包括但不限于以下至少一种：
Padding MAC PDU；
包含Padding BSR MAC CE、Padding SL-BSR MAC CE、周期BSR MAC CE以及Recommended bit rate query MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，周期BSR上报内容为空。
步骤三：UE执行数据传输后，根据触发条件生成第一MAC PDU。
触发条件包括：
场景1：当UE发现物理层PUCCH信道需要传输UCI，且PUCCH信道与配置授权资源相碰撞，但MAC层没有数据PDU需要发送，此时，UE生成第一MAC PDU。
场景2：当UL剩余的资源大于等于BSR或SL-BSR；此时UE生成Padding BSR MAC CE或Padding SL-BSR MAC CE。
场景3：MAC层上层(例如RRC、NAS、PDCP或RLC)可以触发MAC实体向网络设备请求推荐比特速率。
场景4：当周期BSR定时器超时，此时逻辑信道没有缓存数据，且此时有UL授权时，生成周期BSR，但周期BSR上报内容为空。
步骤四：当UE将上述第一MAC PDU递交给物理层后，如果发生重传，且重传与其他数据相碰撞后，UE将跳过所述第一MAC PDU重传，UE将执行其他数据的优先发送。
重传发生的条件可以是以下至少一种：
网络设备调度的重传；
网络设备发送的下行反馈指示(Downlink Feedback Indication，DFI)反馈为NACK；
配置授权重传定时器Cg-RetransmissionTimer超时；
发生LBT失败；
发生了降优先级。
上述重传包括MAC PDU重传、重复传输或多时隙传输。
MAC PDU重传，即MAC PDU的重传，HARQ进程ID不变，但RV版本会根据重传次数进行更新。
重复传输，即同一个数据包在连续的时域资源上重复发送N次，N为RRC配置的重传次数，N次传输过程中，HARQ进程ID不变，但是RV版本会根据预先配置的顺序进行更新。
多时隙传输，即网络设备配置在连续时隙或同一个时隙内存在多个UL授权，多个UL授权的HARQ进程可以不一样。
需要说明的是，上述步骤一和步骤二均为可选的实施例步骤，即上述实施例二可以包括步骤一至步骤四，也可以仅包括步骤二、步骤三和步骤四，还可以仅包括步骤三和步骤四(这种情况下，跳过哪种类型MAC PDU的重传，可以取决于UE自主实现)。
本公开各实施例提供的方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
图2为本公开实施例提供的终端设备的结构示意图，如图2所示，该终端设备包括存储器220，收发机210和处理器200；其中，处理器200与存储器220也可以物理上分开布置。
存储器220，用于存储计算机程序；收发机210，用于在处理器200的控制下收发数据。
具体地，收发机210用于在处理器200的控制下接收和发送数据。
其中，在图2中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器200代表的一个或多个处理器和存储器220代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本公开不再对其进行进一步描述。总线接口提供接口。收发机210可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元，这些传输介质包括无线信道、有线信道、光缆等传输介质。针对不同的用户设备，用户接口230还可以是能够外接内接需要设备的接口，连接的设备包 括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器200负责管理总线架构和通常的处理，存储器220可以存储处理器200在执行操作时所使用的数据。
处理器200可以是中央处理器(Central Processing Unit,CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器200通过调用存储器220存储的计算机程序，用于按照获得的可执行指令执行本公开实施例提供的任一所述方法，例如：生成第一MAC PDU；清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；第一MAC PDU包括但不限于以下至少一种：填充MAC PDU；包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与周期BSR MAC CE相对应的周期BSR上报内容为空。
可选地，所述清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输，包括：在满足确定条件的情况下，清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；所述确定条件包括以下至少一项：确定第一MAC PDU被降传输优先级；确定与第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；确定第一MAC PDU被发送后传输失败。
可选地，所述确定第一MAC PDU被发送后传输失败包括以下至少一项：终端设备接收到网络设备的重传调度命令；终端设备接收到网络设备反馈的非确认NACK指示；配置授权重传定时器超时；
所述暂停第一MAC PDU的传输，包括：暂停第一MAC PDU的重传。
可选地，所述重传包括MAC PDU重传、重复传输或多时隙传输；所述暂停第一MAC PDU的重传，包括：暂停第一MAC PDU的全部重传。
可选地，所述清空包含第一MAC PDU的HARQ缓存或暂停第一MAC  PDU的传输之前，所述方法还包括：向网络设备上报第一能力，第一能力用于指示终端设备支持在传输第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。
在此需要说明的是，本公开实施例提供的上述终端设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
图3为本公开实施例提供的MAC PDU的传输处理装置的结构示意图，该装置应用于终端设备，如图3所示，该装置包括：
生成单元300，用于生成第一MAC PDU；
处理单元310，用于清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；
第一MAC PDU包括但不限于以下至少一种：
填充MAC PDU；
包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与周期BSR MAC CE相对应的周期BSR上报内容为空。
可选地，所述清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输，包括：在满足确定条件的情况下，清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；所述确定条件包括以下至少一项：确定第一MAC PDU被降传输优先级；确定与第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；确定第一MAC PDU被发送后传输失败。
可选地，所述确定第一MAC PDU被发送后传输失败包括以下至少一项：终端设备接收到网络设备的重传调度命令；终端设备接收到网络设备反馈的非确认NACK指示；配置授权重传定时器超时；
所述暂停第一MAC PDU的传输，包括：暂停第一MAC PDU的重传。
可选地，所述重传包括MAC PDU重传、重复传输或多时隙传输；所述 暂停第一MAC PDU的重传，包括：暂停第一MAC PDU的全部重传。
可选地，所述装置还包括：
上报单元，用于向网络设备上报第一能力，第一能力用于指示终端设备支持在传输第一MAC PDU后，清空包含第一MAC PDU的HARQ缓存或暂停第一MAC PDU的传输。
需要说明的是，本公开实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在此需要说明的是，本公开实施例提供的上述装置，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
另一方面，本公开实施例还提供一种处理器可读存储介质，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行上述各实施例提供的MAC PDU的传输处理方法，包括：生成第一MAC PDU；清空包含第一MAC PDU的混合自动重传请求HARQ缓存或暂停第一MAC PDU的传输；第一MAC PDU包括但不限于以下至少一种：填充MAC PDU；包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告 SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与周期BSR MAC CE相对应的周期BSR上报内容为空。
所述处理器可读存储介质可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
本公开实施例涉及的终端设备，可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。在不同的系统中，终端设备的名称可能也不相同，例如在5G系统中，终端设备可以称为用户设备(User Equipment，UE)。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device)，本公开实施例中并不限定。
本公开实施例涉及的网络设备，可以是基站，该基站可以包括多个为终端提供服务的小区。根据具体应用场合不同，基站又可以称为接入点，或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备，或者其它名称。网络设备可用于将收到的空中帧与网际协议(Internet  Protocol，IP)分组进行相互更换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)通信网络。网络设备还可协调对空中接口的属性管理。例如，本公开实施例涉及的网络设备可以是全球移动通信系统(Global System for Mobile communications，GSM)或码分多址接入(Code Division Multiple Access，CDMA)中的网络设备(Base Transceiver Station，BTS)，也可以是带宽码分多址接入(Wide-band Code Division Multiple Access，WCDMA)中的网络设备(NodeB)，还可以是长期演进(long term evolution，LTE)系统中的演进型网络设备(evolutional Node B，eNB或e-NodeB)、5G网络架构(next generation system)中的5G基站(gNB)，也可以是家庭演进基站(Home evolved Node B，HeNB)、中继节点(relay node)、家庭基站(femto)、微微基站(pico)等，本公开实施例中并不限定。在一些网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点，集中单元和分布单元也可以地理上分开布置。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机可执行指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机可执行指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些处理器可执行指令也可存储在能引导计算机或其他可编程数据处理 设备以特定方式工作的处理器可读存储器中，使得存储在该处理器可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些处理器可执行指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (16)

  1. 一种媒体介入控制层分组数据单元MAC PDU的传输处理方法，其特征在于，应用于终端设备，包括：
    生成第一MAC PDU；
    清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述第一MAC PDU包括但不限于以下至少一种：
    填充MAC PDU；
    包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与所述周期BSR MAC CE相对应的周期BSR上报内容为空。
  2. 根据权利要求1所述的MAC PDU的传输处理方法，其特征在于，所述清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输，包括：
    在满足确定条件的情况下，清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述确定条件包括以下至少一项：
    确定所述第一MAC PDU被降传输优先级；
    确定与所述第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；
    确定所述第一MAC PDU被发送后传输失败。
  3. 根据权利要求2所述的MAC PDU的传输处理方法，其特征在于，所述确定所述第一MAC PDU被发送后传输失败包括以下至少一项：
    所述终端设备接收到网络设备的重传调度命令；
    所述终端设备接收到网络设备反馈的非确认NACK指示；
    配置授权重传定时器超时；
    所述暂停所述第一MAC PDU的传输，包括：
    暂停所述第一MAC PDU的重传。
  4. 根据权利要求3所述的MAC PDU的传输处理方法，其特征在于，所述重传包括MAC PDU重传、重复传输或多时隙传输；
    所述暂停所述第一MAC PDU的重传，包括：
    暂停所述第一MAC PDU的全部重传。
  5. 根据权利要求1所述的MAC PDU的传输处理方法，其特征在于，所述清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输之前，所述方法还包括：
    向网络设备上报第一能力，所述第一能力用于指示所述终端设备支持在传输所述第一MAC PDU后，清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输。
  6. 一种终端设备，包括存储器，收发机，处理器：
    存储器，用于存储计算机程序；收发机，用于在所述处理器的控制下收发数据；处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    生成第一媒体介入控制层分组数据单元MAC PDU；
    清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述第一MAC PDU包括但不限于以下至少一种：
    填充MAC PDU；
    包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与所述周期BSR MAC CE相对应的周期BSR上报内容为空。
  7. 根据权利要求6所述的终端设备，其特征在于，所述清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输，包括：
    在满足确定条件的情况下，清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述确定条件包括以下至少一项：
    确定所述第一MAC PDU被降传输优先级；
    确定与所述第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；
    确定所述第一MAC PDU被发送后传输失败。
  8. 根据权利要求7所述的终端设备，其特征在于，所述确定所述第一MAC PDU被发送后传输失败包括以下至少一项：
    所述终端设备接收到网络设备的重传调度命令；
    所述终端设备接收到网络设备反馈的非确认NACK指示；
    配置授权重传定时器超时；
    所述暂停所述第一MAC PDU的传输，包括：
    暂停所述第一MAC PDU的重传。
  9. 根据权利要求8所述的终端设备，其特征在于，所述重传包括MAC PDU重传、重复传输或多时隙传输；
    所述暂停所述第一MAC PDU的重传，包括：
    暂停所述第一MAC PDU的全部重传。
  10. 根据权利要求6所述的终端设备，其特征在于，所述清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输之前，所述操作还包括：
    向网络设备上报第一能力，所述第一能力用于指示所述终端设备支持在传输所述第一MAC PDU后，清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输。
  11. 一种媒体介入控制层分组数据单元MAC PDU的传输处理装置，其特征在于，应用于终端设备，包括：
    生成单元，用于生成第一MAC PDU；
    处理单元，用于清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述第一MAC PDU包括但不限于以下至少一种：
    填充MAC PDU；
    包含填充缓存状态报告BSR MAC CE、填充直接通信链路缓存状态报告SL-BSR MAC CE、周期BSR MAC CE以及推荐比特速率查询MAC CE中的至少一个或多个MAC CE的MAC PDU，其中，与所述周期BSR MAC CE相对应的周期BSR上报内容为空。
  12. 根据权利要求11所述的MAC PDU的传输处理装置，其特征在于，所述清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输，包括：
    在满足确定条件的情况下，清空包含所述第一MAC PDU的混合自动重传请求HARQ缓存或暂停所述第一MAC PDU的传输；
    所述确定条件包括以下至少一项：
    确定所述第一MAC PDU被降传输优先级；
    确定与所述第一MAC PDU相关联的MAC实体接收到物理层先听后说LBT失败指示；
    确定所述第一MAC PDU被发送后传输失败。
  13. 根据权利要求12所述的MAC PDU的传输处理装置，其特征在于，所述确定所述第一MAC PDU被发送后传输失败包括以下至少一项：
    所述终端设备接收到网络设备的重传调度命令；
    所述终端设备接收到网络设备反馈的非确认NACK指示；
    配置授权重传定时器超时；
    所述暂停所述第一MAC PDU的传输，包括：
    暂停所述第一MAC PDU的重传。
  14. 根据权利要求13所述的MAC PDU的传输处理装置，其特征在于，所述重传包括MAC PDU重传、重复传输或多时隙传输；
    所述暂停所述第一MAC PDU的重传，包括：
    暂停所述第一MAC PDU的全部重传。
  15. 根据权利要求11所述的MAC PDU的传输处理装置，其特征在于，所述装置还包括：
    上报单元，用于向网络设备上报第一能力，所述第一能力用于指示所述终端设备支持在传输所述第一MAC PDU后，清空包含所述第一MAC PDU的HARQ缓存或暂停所述第一MAC PDU的传输。
  16. 一种处理器可读存储介质，其特征在于，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至5任一项所述的方法。
PCT/CN2022/108758 2021-08-03 2022-07-28 Mac pdu的传输处理方法及装置 WO2023011326A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110888148.3A CN115913469A (zh) 2021-08-03 2021-08-03 Mac pdu的传输处理方法及装置
CN202110888148.3 2021-08-03

Publications (1)

Publication Number Publication Date
WO2023011326A1 true WO2023011326A1 (zh) 2023-02-09

Family

ID=85154272

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/108758 WO2023011326A1 (zh) 2021-08-03 2022-07-28 Mac pdu的传输处理方法及装置

Country Status (2)

Country Link
CN (1) CN115913469A (zh)
WO (1) WO2023011326A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111211877A (zh) * 2018-11-22 2020-05-29 华为技术有限公司 一种缓存管理的方法及相应设备
WO2020259495A1 (zh) * 2019-06-25 2020-12-30 夏普株式会社 用户设备、基站及其方法
CN112583535A (zh) * 2019-09-30 2021-03-30 夏普株式会社 由用户设备执行的方法以及用户设备
CN112789938A (zh) * 2019-04-30 2021-05-11 Oppo广东移动通信有限公司 一种信息处理方法、用户设备、终端设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111211877A (zh) * 2018-11-22 2020-05-29 华为技术有限公司 一种缓存管理的方法及相应设备
CN112789938A (zh) * 2019-04-30 2021-05-11 Oppo广东移动通信有限公司 一种信息处理方法、用户设备、终端设备
WO2020259495A1 (zh) * 2019-06-25 2020-12-30 夏普株式会社 用户设备、基站及其方法
CN112583535A (zh) * 2019-09-30 2021-03-30 夏普株式会社 由用户设备执行的方法以及用户设备

Also Published As

Publication number Publication date
CN115913469A (zh) 2023-04-04

Similar Documents

Publication Publication Date Title
US11706611B2 (en) Method for reporting multi-connection transmission capability, method for configuring multi-connection transmission mode, method for preventing retransmission of data, UE and base station
EP4117214B1 (en) Method and user equipment (ue) for managing harq procedure for multiple numerologies
WO2019091233A1 (zh) 一种带宽切换方法及装置
WO2020119195A1 (zh) 一种数据传输方法及装置
KR102566795B1 (ko) 데이터 송신을 위한 방법, 디바이스, 및 시스템
WO2017193730A1 (zh) 自动重传的调度方法、终端、网络侧设备以及存储媒介
JP2009536468A (ja) 移動通信システムで信号を転送する方法
WO2018171711A1 (zh) 重传处理方法和设备
KR20090016419A (ko) 동적 무선자원 할당방법에서 ｈａｒｑ를 제어하는 방법
WO2014194841A1 (zh) 数据传输方法及装置
EP4089939A1 (en) Data transmission method, apparatus, and system
WO2021159857A1 (zh) 码本传输方法及装置
WO2021062669A1 (zh) 一种通信方法及通信装置
JP4896073B2 (ja) 無線通信システムにおいてデータ伝送状態をポーリングする方法及び装置
JP2020509689A (ja) アクティベーション命令の確認装置、データ伝送モードの報告装置及び方法
WO2023011326A1 (zh) Mac pdu的传输处理方法及装置
WO2022083480A1 (zh) 一种数据传输方法、装置及设备
WO2022117102A1 (zh) 上行控制信息传输方法、接收方法、终端和网络设备
CN112217618B (zh) 信息传输方法及装置
WO2024032274A1 (zh) 确定harq进程标识的方法及装置
CN114070482B (zh) 业务传输的处理方法、装置、网络侧设备及终端
WO2023011230A1 (zh) 控制信令监测方法、装置、设备及存储介质
TWI786585B (zh) 資訊傳輸方法及裝置
WO2023165449A1 (zh) 一种通信方法及装置
TWI838672B (zh) 資源指示方法、裝置和存儲介質

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22852039

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE