WO2022155926A1 - 无线通信的方法和终端设备 - Google Patents

无线通信的方法和终端设备 Download PDF

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Publication number
WO2022155926A1
WO2022155926A1 PCT/CN2021/073413 CN2021073413W WO2022155926A1 WO 2022155926 A1 WO2022155926 A1 WO 2022155926A1 CN 2021073413 W CN2021073413 W CN 2021073413W WO 2022155926 A1 WO2022155926 A1 WO 2022155926A1
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WIPO (PCT)
Prior art keywords
target
resource
terminal device
harq process
duration
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PCT/CN2021/073413
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English (en)
French (fr)
Inventor
付喆
徐婧
吴作敏
Original Assignee
Oppo广东移动通信有限公司
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.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180071025.9A priority Critical patent/CN116368760A/zh
Priority to PCT/CN2021/073413 priority patent/WO2022155926A1/zh
Publication of WO2022155926A1 publication Critical patent/WO2022155926A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a method and terminal device for wireless communication.
  • the New Radio (NR) system can support the Configured Grant (CG) scheduling method. However, if the Configured Grant Retransmission Timer (CGRT) or the Configured Grant Uplink Control Information (Configured Grant Retransmission Timer, CGRT) is not configured In the case of Grant Uplink Control Information, CG-UCI), if the downlink feedback information (Downlink Feedback Information, DFI) instruction is not received, or the DFI instruction of the negative acknowledgement (Negative Acknowledgement, NACK) is received, how to carry out the transmission processing terminal The side behavior is ambiguous, which is not conducive to the consistency of the terminal and the network's understanding of the transmission behavior.
  • DFI Downlink Feedback Information
  • NACK Negative Acknowledgement
  • the embodiment of the present application provides a method and terminal device for wireless communication.
  • CGRT or CG-UCI is not configured, but CG-DFI is configured, it provides information on resources, HARQ processes, MAC PDUs that have not been successfully transmitted.
  • At least one of the methods for retransmission enables the receiving end to perform soft combining to improve transmission efficiency and decoding success rate.
  • a method for wireless communication comprising:
  • the terminal device has the target resource, the target hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process, the target media access control protocol data unit (Media Access Control Protocol Data Unit, MAC PDU) at least one of the retransmissions;
  • the target hybrid automatic repeat request Hybrid Automatic Repeat reQuest, HARQ
  • the target media access control protocol data unit Media Access Control Protocol Data Unit, MAC PDU
  • the first condition includes at least one of the following:
  • the DFI indicating NACK is received, the DFI indication is not received, the DFI indicating the acknowledgment (Acknowledgement, ACK) is not received, there are MAC PDUs that have not been transmitted in the buffer, and there are MAC PDUs in the buffer.
  • a terminal device for executing the method in the above-mentioned first aspect.
  • the terminal device includes functional modules for executing the method in the first aspect.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.
  • an apparatus for implementing the method in the above-mentioned first aspect.
  • the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.
  • a computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.
  • a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.
  • the terminal device when the first condition is satisfied, the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU, so that the receiving end can perform soft combining, improving transmission efficiency and decoding success. Rate.
  • FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.
  • FIG. 2 is a schematic flowchart of a method for wireless communication according to an embodiment of the present application.
  • FIG. 3 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 5 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wireless Fidelity Wireless Fidelity
  • WiFi fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and can also be applied to a standalone (Standalone, SA) scenario ) network deployment scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA standalone
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, Among them, licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • a mobile phone Mobile Phone
  • a tablet computer Pad
  • a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
  • augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite, balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
  • the network device may also be a base station located on land, water, or the like.
  • a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
  • the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
  • Pico cell Femto cell (Femto cell), etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices, This embodiment of the present application does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
  • a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
  • predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • predefined may refer to the definition in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
  • ultra-reliable and low latency communication (Ultra-Reliable and Low Latency Communication, URLLC) related to the present application is described.
  • the 5G URLLC needs to support the transmission of services such as Factory automation, Transport Industry, and Electrical Power Distribution in the 5G system.
  • the Configuration Grant CG is enhanced, that is, multiple CG configurations are introduced, as well as the specific configuration and use of CGs (such as supporting a slot-level period, Support for automatic transfer of CG, etc.) has been enhanced.
  • Release 17 (release17, R17) needs to consider supporting the URLLC service in the interference-controlled NR-U scenario. Specifically, it is possible to consider the enhanced usage of NR-U CG and ULRRC CG in the NR-U scenario. And consider the initial channel occupancy time (COT) of Frame Based Equipment (FBE).
  • COT channel occupancy time
  • FBE Frame Based Equipment
  • URLLC enhances the CG cycle to support any slot-level service cycle.
  • URLLC introduces multiple (multiple) CGs.
  • the HARQ processes configured by different CGs are different, and the HARQ process identifier offset 2 (harq-ProcID-Offset2) is used to ensure that the processes of different CGs are different.
  • the media access control (Media Access Control, MAC) layer may indicate one or more MAC PDUs to the physical layer.
  • the MAC layer can also indicate the SR and the MAC PDU to the physical layer.
  • NR-Us related to the present application are described.
  • NR works in unlicensed frequency bands, including the following working scenarios:
  • Scenario A Carrier aggregation scenario, the primary cell (Primary Cell, PCell) is the licensed spectrum, and the secondary cells (Secondary Cell, SCell) working on the unlicensed spectrum are aggregated through carrier aggregation;
  • Primary Cell Primary Cell, PCell
  • secondary cells Secondary Cell, SCell
  • PCell is LTE licensed spectrum
  • PSCell Primary Secondary Cell
  • Scenario C Independent working scenario, NR works as an independent cell in unlicensed spectrum
  • Scenario D NR single-cell scenario, the uplink (Uplink, UL) works in the licensed spectrum, and the downlink (Downlink, DL) works in the unlicensed spectrum;
  • Scenario E Dual-connection working scenario, PCell is NR licensed spectrum, PScell is NR unlicensed spectrum.
  • the working frequency band (Band) of NR-U is 5GHz unlicensed spectrum and 6GHz unlicensed spectrum.
  • the design of NR-U should ensure fairness with other systems already working on these unlicensed spectrum, such as WiFi.
  • the principle of fairness is that NR-U cannot affect systems already deployed on unlicensed spectrum (such as WiFi) more than between those systems.
  • the general energy detection mechanism is the LBT mechanism.
  • the basic principle of the mechanism is that: before the base station or the terminal (transmitter) transmits data on the unlicensed spectrum, it needs to listen for a period of time according to regulations. If the result of listening indicates that the channel is in an idle state, the transmitting end can transmit data to the receiving end. If the listening result indicates that the channel is in an occupied state, the transmitting end needs to roll back for a period of time and continue to listen to the channel according to the regulations. Only when the channel listening result is in an idle state can data be transmitted to the receiving end.
  • This mechanism is used for the transmission side to transmit quickly after the switching gap (switching gap) in the COT;
  • Switching gap refers to the conversion time when the transmission is received, and the typical value is not more than 16us.
  • LBT Listen Before Talk
  • This mechanism means that the time for the UE to listen to the channel is determined, which is generally relatively short, such as 25us.
  • the transmitting side randomly selects a random value in the contention window to determine the time to listen to the channel.
  • the transmitting side randomly selects a random value in the contention window to determine the time to listen to the channel, and the contention window is variable.
  • the base station needs to transmit data to the terminal within the maximum channel occupancy time (MCOT) time. If the base station does not preempt the channel, that is, outside the MCOT time, the terminal will not. After receiving the scheduling data from the base station to the terminal.
  • MCOT channel occupancy time
  • the terminal equipment For the uplink transmission initiated by the terminal equipment, it mainly includes the following categories:
  • Scheduling Request used to request uplink resources
  • PRACH Physical Random Access Channel
  • PUSCH transmission including CG-based uplink data transmission and dynamic grant-based uplink data transmission;
  • Physical layer signaling transmission including ACK/NACK feedback, Channel State Information (CSI) reporting, etc.;
  • the terminal device On the unlicensed frequency band, the terminal device needs to use LBT to monitor whether the channel is available before transmitting SR, PRACH or PUSCH. If it is not available, that is, the LBT fails, the terminal device needs to wait until the next transmission opportunity to perform LBT again. If LBT failure is detected, the MAC layer needs to be notified of LBT failure information.
  • this application proposes a retransmission scheme.
  • CGRT or CG-UCI is not configured, but CG-DFI is configured, it gives the resources that have not been successfully transmitted, or HARQ process, or MAC PDU.
  • the way of retransmission enables the receiving end to perform soft combining, which improves transmission efficiency and decoding success rate.
  • FIG. 2 is a schematic flowchart of a method 200 for wireless communication according to an embodiment of the present application. As shown in FIG. 2 , the method 200 may include at least part of the following contents:
  • the terminal device when the first condition is met, the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU;
  • the first condition includes at least one of the following:
  • the DFI indicating NACK is received, the DFI indication is not received, the DFI indicating ACK is not received, there are MAC PDUs that have not completed transmission in the buffer, and there are MAC PDUs in the buffer.
  • the retransmission includes at least one of the following:
  • the New Data Indicator (NDI) is not reversed, indicating that the HARQ process triggers retransmission and does not restart the CGT.
  • the terminal device when the first condition is not satisfied, performs new transmission on at least one of the target resource, the target HARQ process, and the target MAC PDU.
  • the new transmission is at least one of the following: consider that the NDI is reversed, obtain the MAC PDU from the multiplexing grouping entity, and instruct the HARQ process to trigger the new transmission.
  • the terminal device when the terminal device retransmits or retransmits the target resource, it can be understood that the terminal device uses the target resource to retransmit or retransmit.
  • the terminal device retransmits or retransmits the target HARQ process, which can be understood as: the terminal device uses the target HARQ process to retransmit or retransmit.
  • the terminal device retransmits or retransmits the target MAC PDU, which can be understood as: the terminal device uses the target MAC PDU to retransmit or retransmit.
  • S210 may specifically be:
  • the terminal device When the first condition is met and the second condition is met, the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU;
  • the second condition includes but is not limited to at least one of the following:
  • CG-DFI Configured Grant Downlink Feedback Information
  • UCI Uplink Control Information
  • CCT Configured Grant Timer
  • DCI Downlink Control Information
  • UCI support is not configured, which may mean: UCI transmission on CG resources is not supported, or UCI multiplex transmission on CG resources is not supported.
  • network devices eg, gNBs
  • the resource may be a CG resource or a DG resource.
  • network equipment can also configure CGT and CG-DFI for terminal equipment.
  • S210 may specifically be:
  • the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU.
  • the first duration corresponds to a first timer or CGT
  • the start time of the first timer is the time when the CGT is started or restarted, and/or the duration of the first timer is less than or equal to the duration of the CGT.
  • the first duration is the duration of the first timer, or the first duration is the duration of the CGT.
  • the terminal device stops the retransmission of the target information ;
  • the target information includes at least one of the target resource, the target HARQ process, and the target MAC PDU.
  • the number of times that the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU is one or M times, where M does not exceed the maximum number of retransmissions, and M is positive Integer.
  • the value of M is pre-configured or agreed in the protocol, or the value of M is configured or indicated by the network device.
  • S210 may specifically be:
  • the terminal device After the first duration, the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU by using the CG resource; or,
  • the terminal device uses the CG resource to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU; or,
  • the terminal device uses the CG resource to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU within the second duration; or,
  • the terminal device uses the CG resource to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU within the second duration .
  • the HARQ process of the CG resource is the same as the HARQ process of the target resource.
  • the CG resource and the target resource belong to the same CG resource group.
  • the second duration is the duration of the CGT.
  • the terminal device sends first indication information on the CG resource, where the first indication information is used to indicate that the transmission on the CG resource is a new transmission or a retransmission.
  • the first indication information may be a media access control control element (Media Access Control Control Element, MAC CE) or other information, such as a radio resource control (Radio Resource Control, RRC) message, physical layer information (such as port, code original, mapping method, scrambling method, etc.).
  • Media Access Control Element Media Access Control Control Element, MAC CE
  • RRC Radio Resource Control
  • RRC Physical layer information
  • CGRT or CG-UCI when a terminal device works in an unlicensed band or a shared spectrum, if CGRT or CG-UCI is not configured, but CG-DFI is configured, and the CGT corresponding to the target resource/target HARQ process/target MAC PDU is running,
  • the terminal equipment receives the DFI indication as NACK, or does not receive the DFI indication, or does not receive the ACK indication
  • the terminal equipment retransmits the target resource/target HARQ process/target MAC PDU after the CGT times out.
  • the target resource/target HARQ process/target MAC PDU only transmit X times, where X is 1 or the configured maximum times.
  • the terminal equipment when the terminal device works in the unlicensed band or shared spectrum, if CGRT or CG-UCI is not configured, but CG-DFI is configured, and the first duration corresponding to the target resource/target HARQ process/target MAC PDU During the first time period (such as during the first timer), the terminal equipment receives the DFI indication as NACK, or does not receive the DFI indication, or does not receive the ACK indication, the terminal equipment is in the first duration or corresponding to the target resource/target HARQ process/target MAC After the CGT of the PDU times out, retransmit the target resource/target HARQ process/target MAC PDU.
  • the first duration is less than the duration of the CGT.
  • For the target resource/target HARQ process/target MAC PDU only transmit X times, where X is 1 or the configured maximum times.
  • the terminal device works in licensed band or unshared spectrum
  • CGRT or CG-UCI is not configured, but CG-DFI is configured
  • the corresponding target resource/target HARQ process/target MAC PDU first duration After (such as the first timer timeout or CGT timeout)
  • the target resource/target HARQ process/target MAC PDU is retransmitted.
  • the target resource/target HARQ process/target MAC PDU only transmit X times, where X is 1 or the configured maximum times.
  • FIG. 3 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes: a communication unit 310,
  • the communication unit 310 is configured to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU;
  • the first condition includes at least one of the following:
  • the DFI indicating NACK is received, the DFI indication is not received, the DFI indicating ACK is not received, there are MAC PDUs that have not completed transmission in the buffer, and there are MAC PDUs in the buffer.
  • the communication unit 310 is specifically used for:
  • At least one of the target resource, the target HARQ process, and the target MAC PDU is retransmitted;
  • the second condition includes at least one of the following:
  • the DCI indication of at least one of the target MAC PDUs, and the retransmission or new transmission of at least one of the target resource, the target HARQ process, and the target MAC PDU has not been received by dynamic scheduling.
  • the communication unit 310 is specifically used for:
  • At least one of the target resource, the target HARQ process, and the target MAC PDU is retransmitted.
  • the terminal device 300 further includes: a processing unit 320,
  • the processing unit 320 is configured to stop the retransmission of the target information
  • the target information includes at least one of the target resource, the target HARQ process, and the target MAC PDU.
  • the number of times that the terminal device retransmits at least one of the target resource, the target HARQ process, and the target MAC PDU is one or M times, where M does not exceed the maximum number of retransmissions, and M is positive Integer.
  • the value of M is pre-configured or agreed in the protocol, or the value of M is configured or indicated by the network device.
  • the communication unit 310 is specifically used for:
  • the CG resource After the first duration, and if the maximum number of retransmissions is not reached, use the CG resource to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU; or,
  • the CG resource After the first duration, and if the maximum number of retransmissions is not reached, use the CG resource to retransmit at least one of the target resource, the target HARQ process, and the target MAC PDU within the second duration.
  • the HARQ process of the CG resource is the same as the HARQ process of the target resource.
  • the CG resource and the target resource belong to the same CG resource group.
  • the second duration is the duration of the CGT.
  • the communication unit 310 is further configured to send first indication information on the CG resource, where the first indication information is used to indicate that the transmission on the CG resource is a new transmission or a retransmission.
  • the first duration corresponds to a first timer or CGT
  • the start time of the first timer is the time when the CGT is started or restarted, and/or the duration of the first timer is less than or equal to the duration of the CGT.
  • the first duration is the duration of the first timer, or the first duration is the duration of the CGT.
  • the retransmission includes at least one of the following:
  • the NDI is not reversed, indicating that the HARQ process triggers retransmission and does not restart the CGT.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are respectively for realizing the method shown in FIG. 2 .
  • the corresponding process of the terminal device in 200 is not repeated here for brevity.
  • FIG. 4 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application.
  • the communication device 400 shown in FIG. 4 includes a processor 410, and the processor 410 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 400 may also include a memory 420 .
  • the processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.
  • the memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .
  • the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or Receive information or data sent by other devices.
  • the transceiver 430 may include a transmitter and a receiver.
  • the transceiver 430 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 400 may specifically be the network device of the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the communication device 400 may specifically be the terminal device of the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. Repeat.
  • FIG. 5 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 500 shown in FIG. 5 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 500 may also include a memory 520 .
  • the processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.
  • the memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .
  • the apparatus 500 may also include an input interface 530 .
  • the processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 500 may also include an output interface 540 .
  • the processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus may be applied to the network equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the network equipment in each method of the embodiments of the present application, which is not repeated here for brevity.
  • the apparatus can be applied to the terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which is not repeated here for brevity.
  • the devices mentioned in the embodiments of the present application may also be chips.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 6 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 6 , the communication system 600 includes a terminal device 610 and a network device 620 .
  • the terminal device 610 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 620 can be used to implement the corresponding functions implemented by the network device in the above method. Repeat.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
  • the computer-readable storage medium may be applied to the terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For brevity, It is not repeated here.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.
  • the computer program product may be applied to the terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in each method of the embodiments of the present application.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application.
  • the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.
  • the computer program may be applied to the terminal device in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding processes implemented by the terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种无线通信的方法和终端设备,在未配置CGRT或CG-UCI,但配置了CG-DFI的情况下,给出了对未传输成功的资源、HARQ进程、MAC PDU中的至少一种进行重传的方式,使得接收端可以执行软合并,提高传输效率和解码成功率。该无线通信的方法包括:在满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传;其中,该第一条件包括以下至少一种:接收到指示NACK的DFI,未接收到DFI指示,未接收到指示ACK的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。

Description

无线通信的方法和终端设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信的方法和终端设备。
背景技术
在新空口(New Radio,NR)系统可以支持配置授权(Configured Grant,CG)调度方式,然而,在未配置配置授权重传定时器(Configured Grant Retransmission Timer,CGRT)或配置授权上行控制信息(Configured Grant Uplink Control Information,CG-UCI)的情况下,若未收到下行反馈信息(Downlink Feedback Information,DFI)指示,或者收到否定应答(Negative Acknowledgement,NACK)的DFI指示,如何进行传输处理的终端侧行为是不明确的,不利于终端和网络对传输行为理解的一致性。
发明内容
本申请实施例提供了一种无线通信的方法和终端设备,在未配置CGRT或CG-UCI,但配置了CG-DFI的情况下,给出了对未传输成功的资源、HARQ进程、MAC PDU中的至少一种进行重传的方式,使得接收端可以执行软合并,提高传输效率和解码成功率。
第一方面,提供了一种无线通信的方法,该方法包括:
在满足第一条件的情况下,终端设备对目标资源、目标混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)进程、目标媒体接入控制协议数据单元(Media Access Control Protocol Data Unit,MAC PDU)中的至少一种进行重传;
其中,所述第一条件包括以下至少一种:
接收到指示NACK的DFI,未接收到DFI指示,未接收到指示肯定应答(Acknowledgement,ACK)的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。
第二方面,提供了一种终端设备,用于执行上述第一方面中的方法。
具体地,该终端设备包括用于执行上述第一方面中的方法的功能模块。
第三方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面中的方法。
第四方面,提供了一种装置,用于实现上述第一方面中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面中的方法。
第五方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面中的方法。
第六方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面中的方法。
第七方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面中的方法。
通过上述技术方案,在满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传,使得接收端可以执行软合并,提高传输效率和解码成功率。
附图说明
图1是本申请实施例应用的一种通信系统架构的示意性图。
图2是根据本申请实施例提供的一种无线通信的方法的示意性流程图。
图3是根据本申请实施例提供的一种终端设备的示意性框图。
图4是根据本申请实施例提供的一种通信设备的示意性框图。
图5是根据本申请实施例提供的一种装置的示意性框图。
图6是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,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,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
在一些实施例中,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
在一些实施例中,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带 无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。在一些实施例中,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。在一些实施例中,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备,在一些实施例中,该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
在一些实施例中,该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和 /或”,仅仅是一种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。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象,而不是用于描述特定顺序。此外,术语“包括”和“具有”以及它们任何变形,意图在于覆盖不排他的包含。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,所述“协议”可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
为便于更好的理解本申请实施例,对本申请相关的高可靠低时延通信(Ultra-Reliable and Low Latency Communication,URLLC)进行说明。
5G URLLC中需求支持工业自动化(Factory automation),传输自动化(Transport Industry),智能电力(Electrical Power Distribution)等业务在5G系统的传输。为了支持URLLC业务的传输,对配置授权(Configure Grant,CG)进行了增强,即引入了多个CG配置,以及对CG的具体配置和使用(如支持时隙水平(slot-level)的周期,支持CG的自动传输等)进行了增强。
版本17(release17,R17)需要考虑在干扰受控的NR-U场景下支持URLLC业务。具体的,可以考虑在NR-U场景下考虑NR-U CG和ULRRC CG增强的使用方式。以及考虑基于帧的设备(Frame Based Equipment,FBE)的初始信道占用时间(channel occupancy time,COT)。
为便于更好的理解本申请实施例,对本申请相关的URLLC中的CG增强进行说明。
为了支持URLLC业务的高时延要求,URLLC增强了CG周期,支持任意slot-level的业务周期。
为了支持多种URLLC业务和URLLC业务的高时延要求,URLLC引入了多(multiple)CG。不同CG配置的HARQ进程不同,并通过HARQ进程标识偏移2(harq-ProcID-Offset2)保证不同CG的进程不同。
由于存在CG资源和其他资源冲突的情况,为了保证CG资源中已经组包的媒体接入控制协议数据单元(Media Access Control Protocol Data Unit,MAC PDU)(即非优先化(Deprioritized)MAC PDU)不被丢弃/尽快传输,引入了针对CG的自动传输。对该组包MAC PDU的、由于资源冲突不能传输的CG,可以使用后续的、相同HARQ进程的、同一个CG配置中的CG资源,进行新传传输。通过自动传输(autonomousTx)确定使用自动传输。
若物理层优先级不同:有CG和CG的冲突,媒体接入控制(Media Access Control,MAC)层可以指示一个或多个MAC PDU给物理层。同样的,若存在数据和调度请求(Scheduling Request,SR)的冲突,MAC层也可以指示SR和MAC PDU给物理层。
为便于更好的理解本申请实施例,对本申请相关的NR-U进行说明。
NR工作在非授权频段,包括如下几种工作场景:
场景A:载波聚合场景,主小区(Primary Cell,PCell)为授权频谱,通过载波聚合方式聚合工作在非授权频谱上的辅小区(Secondary Cell,SCell);
场景B:双连接工作场景,PCell为LTE授权频谱,主辅小区(Primary Secondary Cell,PSCell)为NR非授权频谱;
场景C:独立工作场景,NR作为一个独立小区工作在非授权频谱;
场景D:NR单小区场景,上行(Uplink,UL)工作在授权频谱,下行(Downlink,DL)工作在非授权频谱;
场景E:双连接工作场景,PCell为NR授权频谱,PScell为NR非授权频谱。
一般来说,NR-U的工作频带(Band)为5GHz非授权频谱和6GHz非授权频谱。在非授权频谱上,NR-U的设计应该保证与其他已经工作在这些非授权频谱上的系统之间的公平性,比如WiFi等。公平性的原则是,NR-U对于已经部署在非授权频谱上的系统(比如WiFi)的影响不能超过这些系统之间的影响。
为了保证在非授权频谱上各系统之间的公平性共存,能量检测已经被同意作为一个基本的共存机制。一般的能量检测机制为LBT机制,该机制的基本原理为:基站或者终端(传输端)在非授权频谱上传输数据之前,需要先按照规定侦听一段时间。如果侦听的结果表示该信道为空闲状态,则传输端可以给接收端传输数据。如果侦听的结果表示该信道为占用状态,则传输端需要根据规定回退一段时间再继续侦听信道,知道信道侦听结果为空闲状态,才能向接收端传输数据。
目前在NR-U中定了四种信道接入机制(category):
Category 1:直接传输机制:
这种机制用于传输侧可以在COT内的切换间隔(switching gap)之后迅速传输;
Switching gap是指接收到传输的转换时间,典型值为不超过16us。
Category 2:不需要随机回退(back-off)的先侦听后传输(Listen Before Talk,LBT)机制:
这种机制是指UE侦听信道的时间是确定的,一般比较短,比如25us。
Category 3:随机back-off的LBT机制(竞争窗口固定):
在LBT流程中,传输侧随机的在竞争窗口中去一个随机值来决定侦听信道的时间。
Category 4:随机back-off的LBT机制(竞争窗口不固定):
在LBT流程中,传输侧随机的在竞争窗口中取一个随机值来决定侦听信道的时间,竞争窗口是可变的。
综上,对于终端而言,基站给终端传输数据需要在最大信道占用时间(maximum channel occupancy time,MCOT)时间之内,如果基站没有抢占到信道,也就是在MCOT时间之外,终端是不会收到基站给该终端的调度数据的。
为便于更好的理解本申请实施例,对本申请相关的NR-U中的上行LBT失败进行说明。
对于终端设备发起的上行传输,主要有包括如下几类:
调度请求(SR):用于请求上行资源;
物理随机接入信道(Physical Random Access Channel,PRACH)传输:由于随机接入触发,终端设备需要发送四步随机接入过程中的消息1(message1,msg1);
物理上行共享信道(Physical Uplink Shared Channel,PUSCH)传输:包括基于CG的上行数据传输以及基于动态授权(dynamic grant)的上行数据传输;
物理层信令传输:包括ACK/NACK反馈,信道状态信息(Channel State Information,CSI)上报等;
在非授权频带上,终端设备传输SR,PRACH或者PUSCH之前都需要先用LBT来侦听信道是否可用,如果不可以用,即LBT失败,则终端设备需要等到下一个传输机会 再次执行LBT。若检测到LBT失败,需要通知给MAC层LBT失败的信息。
在未配置CGRT或CG-UCI的情况下,若未收到DFI指示,或者收到NACK的DFI指示,如何进行传输处理的终端侧行为是不明确的。不利于终端和网络对行为理解的一致性。
基于上述问题,本申请提出了一种重传的方案,在未配置CGRT或CG-UCI,但是配置CG-DFI的情况下,给出了对未传输成功的资源,或HARQ进程,或MAC PDU进行重传的方式,使得接收端可以执行软合并,提高传输效率和解码成功率。
以下通过具体实施例详述本申请的技术方案。
图2是根据本申请实施例的无线通信的方法200的示意性流程图,如图2所示,该方法200可以包括如下内容中的至少部分内容:
S210,在满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传;
其中,该第一条件包括以下至少一种:
接收到指示NACK的DFI,未接收到DFI指示,未接收到指示ACK的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。
在一些实施例中,该重传包括以下至少之一:
新数据指示(New Data Indicator,NDI)不翻转,指示HARQ进程触发重传,不重启CGT。
在一些实施例中,在不满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行新传传输。
例如,新传传输为以下至少之一:认为NDI翻转,从复用组包实体获取MAC PDU,指示HARQ进程触发新传。
需要说明的是,终端设备对目标资源进行重传或新传,可以理解为:终端设备使用目标资源进行重传或新传。终端设备对目标HARQ进程进行重传或新传,可以理解为:终端设备使用目标HARQ进程进行重传或新传。终端设备对目标MAC PDU进行重传或新传,可以理解为:终端设备使用目标MAC PDU进行重传或新传。
在一些实施例中,S210具体可以是:
在满足该第一条件,且满足第二条件的情况下,该终端设备对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;
其中,该第二条件包括但不限于以下至少一种:
工作在非授权频段(unlicensed band)或共享频谱(shared spectrum),未配置CGRT,未配置CG-UCI,配置了配置授权下行反馈信息(Configured Grant Downlink Feedback Information,CG-DFI),配置支持DFI,未配置支持上行控制信息(Uplink Control Information,UCI),配置支持配置授权定时器(Configured Grant Timer,CGT),未收到针对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种的下行控制信息(Downlink Control Information,DCI)指示,未收到动态调度针对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种的重传或新传。
需要说明的是,在第二条件中,未配置支持UCI,可以是指:不支持UCI在CG资源上的传输,或者,不支持UCI在CG资源上多路复用(multiplex)传输。
在一些实施例中,网络设备(如gNB)给终端设备分配资源。其中,该资源可以是CG资源,也可以是DG资源。此外,网络设备也可以给终端设备配置CGT和CG-DFI。
在一些实施例中,S210具体可以是:
在第一时长内满足该第一条件的情况下,该终端设备对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传。
在一些实施例中,该第一时长对应第一定时器或CGT;
其中,该第一定时器的起始时间为CGT启动或重启的时间,和/或,该第一定时器 的时长小于或等于CGT的时长。
在一些实施例中,该第一时长为该第一定时器的时长,或者,该第一时长为CGT的时长。
在一些实施例中,在收到针对目标信息的DCI指示的情况下,或者,在收到动态调度针对目标信息的重传或新传的情况下,该终端设备停止针对该目标信息的重传;
其中,该目标信息包括该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种。
在一些实施例中,该终端设备对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传的次数为一次或M次,M不超过最大重传次数,M为正整数。
在一些实施例中,M的取值为预配置或者协议约定的,或者,M的取值为网络设备配置或指示的。
在一些实施例中,S210具体可以是:
在第一时长之后,该终端设备使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,且未达到最大重传次数的情况下,该终端设备使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,该终端设备在第二时长内使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,且未达到最大重传次数的情况下,该终端设备在第二时长内使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传。
例如,该CG资源的HARQ进程与该目标资源的HARQ进程相同。
例如,该CG资源与该目标资源属于同一个CG资源组。
在一些实施例中,该第二时长为CGT的时长。
在一些实施例中,该终端设备在该CG资源上发送第一指示信息,其中,该第一指示信息用于指示该CG资源上的传输为新传或重传。
例如,该第一指示信息可以是媒体接入控制控制元素(Media Access Control Control Element,MAC CE)或其他信息,如无线资源控制(Radio Resource Control,RRC)消息,物理层信息(如端口,码本,映射方式,扰码方式等)。
作为本申请一个示例,当终端设备工作在unlicensed band或shared spectrum,若未配置CGRT或CG-UCI,但配置了CG-DFI,且对应目标资源/目标HARQ进程/目标MAC PDU的CGT运行期间,终端设备收到DFI指示为NACK,或未收到DFI指示,或未收到ACK指示,终端设备在CGT超时后,对目标资源/目标HARQ进程/目标MAC PDU进行重传。可选的,对该目标资源/目标HARQ进程/目标MAC PDU,仅传输X次,X为1或配置的最大次数。
作为本申请另一个示例,当终端设备工作在unlicensed band或shared spectrum,若未配置CGRT或CG-UCI,但配置了CG-DFI,且对应目标资源/目标HARQ进程/目标MAC PDU的第一时长内(如第一定时器期间),终端设备收到DFI指示为NACK,或未收到DFI指示,或未收到ACK指示,终端设备在第一时长或对应目标资源/目标HARQ进程/目标MAC PDU的CGT超时后,对目标资源/目标HARQ进程/目标MAC PDU进行重传。可选的,该第一时长小于CGT的时长。可选的,对该目标资源/目标HARQ进程/目标MAC PDU,仅传输X次,X为1或配置的最大次数。
作为本申请再一个示例,当终端设备工作在licensed band或unshared spectrum,若未配置CGRT或CG-UCI,但配置了CG-DFI,且对应目标资源/目标HARQ进程/目标MAC PDU的第一时长后(如第一定时器超时或CGT超时),认为缓存(buffer)中存在未完成传输的MAC PDU,对目标资源/目标HARQ进程/目标MAC PDU进行重传。可选的,对该目标资源/目标HARQ进程/目标MAC PDU,仅传输X次,X为1或配置的最大次 数。
因此,在本申请实施例中,在未配置CGRT或CG-UCI,但配置了CG-DFI的时候,给出了对未传输成功的资源、HARQ进程、MAC PDU中的至少一种进行重传的方式,使得接收端可以执行软合并,提高传输效率和解码成功率。
上文结合图2,详细描述了本申请的方法实施例,下文结合图3至图6,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图3示出了根据本申请实施例的终端设备300的示意性框图。如图3所示,该终端设备300包括:通信单元310,
在满足第一条件的情况下,该通信单元310用于对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传;
其中,该第一条件包括以下至少一种:
接收到指示NACK的DFI,未接收到DFI指示,未接收到指示ACK的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。
在一些实施例中,该通信单元310具体用于:
在满足该第一条件,且满足第二条件的情况下,对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;
其中,该第二条件包括以下至少一种:
工作在非授权频段或共享频谱,未配置CGRT,未配置CG-UCI,配置了CG-DFI,配置支持DFI,未配置支持UCI,配置支持CGT,未收到针对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种的DCI指示,未收到动态调度针对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种的重传或新传。
在一些实施例中,该通信单元310具体用于:
在第一时长内满足该第一条件的情况下,对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传。
在一些实施例中,该终端设备300还包括:处理单元320,
在收到针对目标信息的DCI指示的情况下,或者,在收到动态调度针对目标信息的重传或新传的情况下,该处理单元320用于停止针对该目标信息的重传;
其中,该目标信息包括该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种。
在一些实施例中,该终端设备对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传的次数为一次或M次,M不超过最大重传次数,M为正整数。
在一些实施例中,M的取值为预配置或者协议约定的,或者,M的取值为网络设备配置或指示的。
在一些实施例中,该通信单元310具体用于:
在第一时长之后,使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,且未达到最大重传次数的情况下,使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,在第二时长内使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传;或者,
在第一时长之后,且未达到最大重传次数的情况下,在第二时长内使用CG资源对该目标资源、该目标HARQ进程、该目标MAC PDU中的至少一种进行重传。
在一些实施例中,该CG资源的HARQ进程与该目标资源的HARQ进程相同。
在一些实施例中,该CG资源与该目标资源属于同一个CG资源组。
在一些实施例中,该第二时长为CGT的时长。
在一些实施例中,该通信单元310还用于在该CG资源上发送第一指示信息,其中,该第一指示信息用于指示该CG资源上的传输为新传或重传。
在一些实施例中,该第一时长对应第一定时器或CGT;
其中,该第一定时器的起始时间为CGT启动或重启的时间,和/或,该第一定时器的时长小于或等于CGT的时长。
在一些实施例中,该第一时长为该第一定时器的时长,或者,该第一时长为CGT的时长。
在一些实施例中,该重传包括以下至少之一:
NDI不翻转,指示HARQ进程触发重传,不重启CGT。
在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备300可对应于本申请方法实施例中的终端设备,并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图2所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
图4是本申请实施例提供的一种通信设备400示意性结构图。图4所示的通信设备400包括处理器410,处理器410可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
在一些实施例中,如图4所示,通信设备400还可以包括存储器420。其中,处理器410可以从存储器420中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器420可以是独立于处理器410的一个单独的器件,也可以集成在处理器410中。
在一些实施例中,如图4所示,通信设备400还可以包括收发器430,处理器410可以控制该收发器430与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器430可以包括发射机和接收机。收发器430还可以进一步包括天线,天线的数量可以为一个或多个。
在一些实施例中,该通信设备400具体可为本申请实施例的网络设备,并且该通信设备400可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该通信设备400具体可为本申请实施例的终端设备,并且该通信设备400可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
图5是本申请实施例的装置的示意性结构图。图5所示的装置500包括处理器510,处理器510可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
在一些实施例中,如图5所示,装置500还可以包括存储器520。其中,处理器510可以从存储器520中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器520可以是独立于处理器510的一个单独的器件,也可以集成在处理器510中。
在一些实施例中,该装置500还可以包括输入接口530。其中,处理器510可以控制该输入接口530与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
在一些实施例中,该装置500还可以包括输出接口540。其中,处理器510可以控制该输出接口540与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
在一些实施例中,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该装置可应用于本申请实施例中的终端设备,并且该装置可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图6是本申请实施例提供的一种通信系统600的示意性框图。如图6所示,该通信系统600包括终端设备610和网络设备620。
其中,该终端设备610可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备620可以用于实现上述方法中由网络设备实现的相应的功能,为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机可读存储介质可应用于本申请实施例中的终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序产品可应用于本申请实施例中的终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
在一些实施例中,该计算机程序可应用于本申请实施例中的终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,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,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请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。
所述功能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,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请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)执行本申请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。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应 涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (33)

  1. 一种无线通信的方法,其特征在于,包括:
    在满足第一条件的情况下,终端设备对目标资源、目标混合自动重传请求HARQ进程、目标媒体接入控制协议数据单元MAC PDU中的至少一种进行重传;
    其中,所述第一条件包括以下至少一种:
    接收到指示否定应答NACK的下行反馈信息DFI,未接收到DFI指示,未接收到指示肯定应答ACK的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。
  2. 如权利要求1所述的方法,其特征在于,所述在满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传,包括:
    在满足所述第一条件,且满足第二条件的情况下,所述终端设备对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;
    其中,所述第二条件包括以下至少一种:
    工作在非授权频段或共享频谱,未配置配置授权重传定时器CGRT,未配置配置授权上行控制信息CG-UCI,配置了配置授权下行反馈信息CG-DFI,配置支持DFI,未配置支持上行控制信息UCI,配置支持配置授权定时器CGT,未收到针对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种的下行控制信息DCI指示,未收到动态调度针对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种的重传或新传。
  3. 如权利要求1或2所述的方法,其特征在于,所述在满足第一条件的情况下,终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传,包括:
    在第一时长内满足所述第一条件的情况下,所述终端设备对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传。
  4. 如权利要求1至3中任一项所述的方法,其特征在于,所述方法还包括:
    在收到针对目标信息的DCI指示的情况下,或者,在收到动态调度针对目标信息的重传或新传的情况下,所述终端设备停止针对所述目标信息的重传;
    其中,所述目标信息包括所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种。
  5. 如权利要求1至4中任一项所述的方法,其特征在于,
    所述终端设备对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传的次数为一次或M次,M不超过最大重传次数,M为正整数。
  6. 如权利要求5所述的方法,其特征在于,M的取值为预配置或者协议约定的,或者,M的取值为网络设备配置或指示的。
  7. 如权利要求1至6中任一项所述的方法,其特征在于,所述终端设备对目标资源、目标HARQ进程、目标MAC PDU中的至少一种进行重传,包括:
    在第一时长之后,所述终端设备使用配置授权CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,且未达到最大重传次数的情况下,所述终端设备使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,所述终端设备在第二时长内使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,且未达到最大重传次数的情况下,所述终端设备在第二时长内使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传。
  8. 如权利要求7所述的方法,其特征在于,所述CG资源的HARQ进程与所述目标资源的HARQ进程相同。
  9. 如权利要求7或8所述的方法,其特征在于,所述CG资源与所述目标资源属于同一个CG资源组。
  10. 如权利要求7至9中任一项所述的方法,其特征在于,所述第二时长为CGT的时长。
  11. 如权利要求7至10中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备在所述CG资源上发送第一指示信息,其中,所述第一指示信息用于指示所述CG资源上的传输为新传或重传。
  12. 如权利要求3、7至11中任一项所述的方法,其特征在于,
    所述第一时长对应第一定时器或CGT;
    其中,所述第一定时器的起始时间为CGT启动或重启的时间,和/或,所述第一定时器的时长小于或等于CGT的时长。
  13. 如权利要求12所述的方法,其特征在于,
    所述第一时长为所述第一定时器的时长,或者,所述第一时长为CGT的时长。
  14. 如权利要求1至13中任一项所述的方法,其特征在于,所述重传包括以下至少之一:
    新数据指示NDI不翻转,指示HARQ进程触发重传,不重启CGT。
  15. 一种终端设备,其特征在于,包括:通信单元,
    在满足第一条件的情况下,所述通信单元用于对目标资源、目标混合自动重传请求HARQ进程、目标媒体接入控制协议数据单元MAC PDU中的至少一种进行重传;
    其中,所述第一条件包括以下至少一种:
    接收到指示否定应答NACK的下行反馈信息DFI,未接收到DFI指示,未接收到指示肯定应答ACK的DFI,缓存中存在未完成传输的MAC PDU,缓存中存在MAC PDU。
  16. 如权利要求15所述的终端设备,其特征在于,所述通信单元具体用于:
    在满足所述第一条件,且满足第二条件的情况下,对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;
    其中,所述第二条件包括以下至少一种:
    工作在非授权频段或共享频谱,未配置配置授权重传定时器CGRT,未配置配置授权上行控制信息CG-UCI,配置了配置授权下行反馈信息CG-DFI,配置支持DFI,未配置支持上行控制信息UCI,配置支持配置授权定时器CGT,未收到针对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种的下行控制信息DCI指示,未收到动态调度针对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种的重传或新传。
  17. 如权利要求15或16所述的终端设备,其特征在于,所述通信单元具体用于:
    在第一时长内满足所述第一条件的情况下,对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传。
  18. 如权利要求15至17中任一项所述的终端设备,其特征在于,所述终端设备还包括:处理单元,
    在收到针对目标信息的DCI指示的情况下,或者,在收到动态调度针对目标信息的重传或新传的情况下,所述处理单元用于停止针对所述目标信息的重传;
    其中,所述目标信息包括所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种。
  19. 如权利要求15至18中任一项所述的终端设备,其特征在于,
    所述终端设备对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传的次数为一次或M次,M不超过最大重传次数,M为正整数。
  20. 如权利要求19所述的终端设备,其特征在于,M的取值为预配置或者协议约定的,或者,M的取值为网络设备配置或指示的。
  21. 如权利要求15至20中任一项所述的终端设备,其特征在于,所述通信单元具体用于:
    在第一时长之后,使用配置授权CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,且未达到最大重传次数的情况下,使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,在第二时长内使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传;或者,
    在第一时长之后,且未达到最大重传次数的情况下,在第二时长内使用CG资源对所述目标资源、所述目标HARQ进程、所述目标MAC PDU中的至少一种进行重传。
  22. 如权利要求21所述的终端设备,其特征在于,所述CG资源的HARQ进程与所述目标资源的HARQ进程相同。
  23. 如权利要求21或22所述的终端设备,其特征在于,所述CG资源与所述目标资源属于同一个CG资源组。
  24. 如权利要求21至23中任一项所述的终端设备,其特征在于,所述第二时长为CGT的时长。
  25. 如权利要求21至24中任一项所述的终端设备,其特征在于,所述通信单元还用于在所述CG资源上发送第一指示信息,其中,所述第一指示信息用于指示所述CG资源上的传输为新传或重传。
  26. 如权利要求17、21至25中任一项所述的终端设备,其特征在于,
    所述第一时长对应第一定时器或CGT;
    其中,所述第一定时器的起始时间为CGT启动或重启的时间,和/或,所述第一定时器的时长小于或等于CGT的时长。
  27. 如权利要求26所述的终端设备,其特征在于,
    所述第一时长为所述第一定时器的时长,或者,所述第一时长为CGT的时长。
  28. 如权利要求15至27中任一项所述的终端设备,其特征在于,所述重传包括以下至少之一:
    新数据指示NDI不翻转,指示HARQ进程触发重传,不重启CGT。
  29. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至14中任一项所述的方法。
  30. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至14中任一项所述的方法。
  31. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至14中任一项所述的方法。
  32. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至14中任一项所述的方法。
  33. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至14中任一项所述的方法。
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