WO2023093696A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2023093696A1
WO2023093696A1 PCT/CN2022/133388 CN2022133388W WO2023093696A1 WO 2023093696 A1 WO2023093696 A1 WO 2023093696A1 CN 2022133388 W CN2022133388 W CN 2022133388W WO 2023093696 A1 WO2023093696 A1 WO 2023093696A1
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WIPO (PCT)
Prior art keywords
communication device
data unit
indication information
data
communication
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PCT/CN2022/133388
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English (en)
French (fr)
Inventor
廖树日
陈二凯
曹佑龙
徐瑞
窦圣跃
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华为技术有限公司
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Publication of WO2023093696A1 publication Critical patent/WO2023093696A1/zh

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    • 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
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • 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
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1848—Time-out mechanisms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0278—Traffic management, e.g. flow control or congestion control using buffer status reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Definitions

  • the present application relates to the field of communication technologies, and in particular to a communication method and device for extended reality (XR) services.
  • XR extended reality
  • extended reality (XR) technology In wireless communication networks, extended reality (XR) technology has the advantages of multi-view, strong interactivity, etc., and can provide users with a brand-new visual experience, which has great application value and commercial potential.
  • XR includes virtual reality (virtual reality, VR), augmented reality (augmented reality, AR), and mixed reality (mix reality, MR) technologies, which can be widely used in entertainment, games, medical care, advertising, industry, online education, tactile Internet, and engineering and many other fields.
  • VR virtual reality
  • AR augmented reality
  • mixed reality mixed reality
  • the present application provides a communication method and device, which are used to solve the problem of invalid communication caused by applying the prior art to an XR service packet loss scenario, so as to reduce device power consumption and save communication resources.
  • the communication method provided by the embodiment of the application can be applied to the uplink of the communication system, and can also be applied to the downlink of the communication system.
  • the embodiment of the present application provides a communication method, including: the first communication device obtains information about the data unit to which the data packet belongs, and the data unit includes one or more of the data packets; the first communication device discards The data packets being transmitted and not transmitted of the data unit; the first communication device sends first indication information to the second communication device, where the first indication information includes information of the data unit.
  • the first communication device can make the second communication device release the HARQ process corresponding to the data unit according to the information of the data unit by sending the information of the data unit to the second communication device, thereby reducing the The power consumption of the second communication device saves communication resources.
  • the first indication information includes identification information of the data unit.
  • the first communication device sends second indication information to the second communication device, where the second indication information is used to indicate that each transport block (TB) belongs to The identification information of the data unit.
  • the first communication device stops a hybrid automatic repeat request (HARQ) process corresponding to a TB of a data packet being transmitted of the data unit.
  • HARQ hybrid automatic repeat request
  • the first indication information includes the above-mentioned HARQ process number of the HARQ.
  • the first indication information is transmitted through radio resource control (RRC) information, medium access control element (MAC CE) information, physical downlink control channel (PDCCH) or Physical Downlink Data Channel (PDSCH) transmission.
  • RRC radio resource control
  • MAC CE medium access control element
  • PDCCH physical downlink control channel
  • PDSCH Physical Downlink Data Channel
  • the embodiment of the present application provides a communication method, including: the second communication device receives first indication information from the first communication device, the first indication information includes information of a data unit, and the data unit includes one or Multiple packets.
  • the second communication device stops or does not start a discontinuous reception retransmission timer (DRX Retransmission Timer) of a hybrid automatic repeat request (HARQ) process of the transport block (TB) corresponding to the data unit based on the first indication information.
  • DRX Retransmission Timer discontinuous reception retransmission timer
  • HARQ hybrid automatic repeat request
  • the second communication device can stop or not start the discontinuous reception retransmission timing of the HARQ process corresponding to the TB of the data unit according to the received information of the data unit from the first communication device (DRX Retransmission Timer), thereby reducing the power consumption of the second communication device and saving communication resources.
  • DRX Retransmission Timer the received information of the data unit from the first communication device
  • the first indication information includes identification information of the data unit.
  • the second communication device stops or does not start the DRX Retransmission Timer of the HARQ process of the TB corresponding to the data unit based on the identification information.
  • the first indication information includes the above-mentioned HARQ HARQ process number.
  • the second communication device stops or does not start the DRX Retransmission Timer of the HARQ process based on the HARQ process number.
  • the first indication information is transmitted through RRC, MAC CE, PDCCH or PDSCH.
  • the embodiment of the present application provides a communication method, including: the second communication device acquires information about the data unit to which the data packet belongs, and the data unit includes one or more of the data packets; the second communication device discards The data packets being transmitted and not transmitted of the data unit; the second communication device sending third indication information to the first communication device, where the third indication information includes information of the data unit.
  • the third indication information includes identification information of the data unit.
  • the second communication device sends buffer status information (BSR) to the first communication device, and the BSR includes information to be stored in the buffer of the second communication device The amount of data transmitted.
  • BSR buffer status information
  • the second communication device stops the HARQ process corresponding to the transport block (TB) of the data packet being transmitted of the data unit.
  • the third indication information includes the HARQ HARQ process number.
  • the third indication information is transmitted through RRC, MAC CE, PUCCH or PUSCH.
  • the embodiment of the present application provides a communication method, including: the first communication device receives third indication information from the second communication device, the third indication information includes information of a data unit, and the data unit includes one or multiple data packets; the first communication device releases the HARQ process of the TB corresponding to the data unit based on the third indication information.
  • the third indication information includes identification information of the data unit.
  • the first communication device releases the HARQ process of the TB corresponding to the data unit based on the identification information.
  • the third indication information includes the HARQ HARQ process number.
  • the first communication device releases the HARQ process based on the HARQ process number.
  • the first communication device receives the BSR from the second communication device, and the BSR includes the amount of data to be transmitted in the buffer of the second communication device; the first communication device A communication device determines the amount of data that needs to be transmitted by the second communication device based on the BSR.
  • the embodiment of the present application provides a communication device, including a module for performing the method described in the first aspect or any possible implementation manner of the first aspect, or implementing the fourth aspect or the fourth aspect A module of the method described in any one of the possible implementations.
  • the embodiment of the present application provides a communication device, including a module for performing the method described in the second aspect or any possible implementation manner of the second aspect, or implementing the third aspect or the third aspect A module of the method described in any one of the possible implementations.
  • the embodiment of the present application provides a communication device, including a processor and an interface circuit, and the interface circuit is used to receive signals from other devices other than the device and transmit them to the processor or transfer signals from the processor The signal is sent to other devices other than the device, and the processor implements the first aspect or the method described in the possible implementation manners of the first aspect through a logic circuit or executes code instructions, or realizes the second aspect or the first aspect
  • the processor implements the first aspect or the method described in the possible implementation manners of the first aspect through a logic circuit or executes code instructions, or realizes the second aspect or the first aspect
  • the embodiments of the present application provide a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed by a computing device, the first aspect or the first aspect is realized.
  • the embodiment of the present application provides a computer program product, the computer program product includes a computer program or instruction, and when the computer program or instruction is executed by a computing device, the first aspect or a possible implementation of the first aspect can be realized
  • the embodiment of the present application provides a communication system, the communication system includes one or more of the following: the communication device as provided in the fifth aspect, the sixth aspect or the seventh aspect, and the communication device as provided in the eighth aspect A computer-readable storage medium, and a computer program product as provided in the ninth aspect.
  • FIG. 1 is a schematic diagram of a possible communication architecture in an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a possible communication method in the embodiment of the present application.
  • FIG. 3 is another schematic flowchart of a possible communication method in the embodiment of the present application.
  • FIG. 4 is a schematic diagram of a possible DRX cycle in the embodiment of the present application.
  • FIG. 5 is another schematic flowchart of a possible communication method in the embodiment of the present application.
  • FIG. 6 is another schematic flowchart of a possible communication method in the embodiment of the present application.
  • FIG. 7 is another schematic flowchart of a possible communication method in the embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 shows a schematic structural diagram of a communication system.
  • the communication system 100 includes one or more access network devices (access network device 110 and access network device 120 are shown in the figure), and one or more terminals communicating with the one or more access network devices .
  • Terminal 114 and terminal 118 shown in FIG. 1 communicate with access network device 110
  • terminals 124 and 128 shown in FIG. 1 communicate with access network device 120 .
  • access network devices and terminals may also be referred to as communication devices.
  • the method and device provided by the embodiments of the present application can be used in various communication systems, such as the fourth generation (4th generation, 4G) communication system, 4.5G communication system, 5G communication system, a system where multiple communication systems are integrated, or a system that evolves in the future Communication system (such as 5.5G communication system or 6G communication system).
  • 4G fourth generation
  • 4G fourth generation
  • 5G communication system a system where multiple communication systems are integrated
  • a system that evolves in the future Communication system such as 5.5G communication system or 6G communication system.
  • a system that evolves in the future Communication system such as 5.5G communication system or 6G communication system.
  • LTE long term evolution
  • NR new air interface
  • WiFi wireless fidelity
  • FIG. 2 shows a schematic diagram of a communication system architecture.
  • the terminal accesses the core network through an access network (radio access network, RAN) device.
  • the terminal can establish a connection with a data network (data network, DN) or a server in the data network through the access network and the core network.
  • data network may include, for example, operator services, the Internet (Internet), or third-party services.
  • the connection may be a packet data network connection (packet data network connection, PDN connection) or bearer.
  • the connection may be a protocol data unit session (protocol data unit session, PDU Session).
  • PDU Session protocol data unit session
  • the connection may be a PDU session, or a PDN connection, or other similar concepts, which are not limited in this embodiment of the present application.
  • a connection established between a terminal and a data network or a server may also be referred to as a session.
  • the first communication device in this application may be any device with a wireless transceiver function. Including but not limited to: evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, base station (gNodeB or gNB) or transmission receiving point (transmission receiving point/transmission reception point, TRP) in NR, 3GPP Subsequent evolved base stations, access nodes in the WiFi system, wireless relay nodes, wireless backhaul nodes, core network equipment, etc.
  • the base station can be: a macro base station, a micro base station, a pico base station, a small station, a relay station, or a balloon station, etc.
  • the access network device may also be a server (such as a cloud server), a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario, a centralized unit (centralized unit, CU), and/or a distribution unit ( distributed unit, DU).
  • Access network devices can also be servers, wearable devices, machine communication devices, vehicle-mounted devices, or smart screens. The following takes the access network device as a base station as an example for description.
  • the multiple access network devices may be base stations of the same type, or base stations of different types.
  • the base station can communicate with the terminal equipment, and can also communicate with the terminal equipment through the relay station.
  • the terminal device can communicate with multiple base stations of different technologies. For example, the terminal device can communicate with the base station supporting the LTE network, and also can communicate with the base station supporting the 5G network. It can also support the communication between the base station of the LTE network and the base station of the 5G network. double connection.
  • the second communication device in this application can be a device with wireless transceiver function, which 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.); Deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal may be a mobile phone, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, an industrial control (industrial control), vehicle terminal equipment, unmanned driving (self driving) terminal, assisted driving terminal, telemedicine (remote medical) terminal, smart grid (smart grid) terminal, transportation safety ( Terminals in transportation safety, terminals in smart city, terminals in smart home, etc.
  • the embodiments of the present application do not limit the application scenarios.
  • a terminal may sometimes be referred to as terminal equipment, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, machine terminal, UE proxy or UE device, etc.
  • Terminals can be fixed or mobile.
  • the second communication device may be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, 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 devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the second communication device may be a terminal in the Internet of Things (Internet of Things, IoT) system.
  • IoT Internet of Things
  • MTC machine type communication
  • the second communication device of the present application may be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit built into the vehicle as one or more components or units.
  • on-board components, on-board chips, or on-board units can implement the method of the present application. Therefore, the embodiments of the present application can be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution of vehicle communication (long term evolution vehicle, LTE-V), vehicle to vehicle (vehicle to vehicle, V2V) wait.
  • V2X vehicle to everything
  • LTE-V long term evolution vehicle communication
  • V2V vehicle to vehicle
  • the second communication device in this application may also be a VR terminal, an AR terminal, or an MR terminal.
  • VR terminals, AR terminals, and MR terminals can all be referred to as XR terminals.
  • an XR terminal can be a head-mounted device (such as a helmet or glasses), or an all-in-one machine, or a TV, monitor, car, vehicle-mounted device, tablet, smart screen, holographic projector, video player, remote control robot , Tactile Internet terminals, etc.
  • XR terminals can present XR data to users, and users can experience diversified XR services by wearing or using XR terminals.
  • XR terminals can access the network through wireless or wired methods, such as accessing the network through WiFi or 5G systems.
  • XR services have requirements on data integrity. For example, the transmission of XR video frames is currently used to divide a picture frame into dozens of Internet Protocol (IP) packets at the network transmission layer. to the core network, and then the IP data packet is transmitted to the UE through the radio access network (Radio Access Network, RAN). During network transmission, if an IP packet transmission error occurs, the entire picture frame cannot be recovered.
  • IP Internet Protocol
  • XR services have requirements for delay.
  • the terminal side cannot display them normally during decoding.
  • the transmitting end can discard the data packets that are being transmitted and not transmitted belonging to the video frame.
  • the base station side Due to consideration of data integrity at the sending end, packet loss occurs, and if the receiving end does not deal with it accordingly, it will cause increased power consumption and waste of resources. For example, in the downlink transmission of the XR service, if the base station side has determined an error or timed out due to the data unit transmission, the base station side will discard the data packet being transmitted and the untransmitted data unit. Wherein the data unit includes multiple data packets. On the terminal side, it will normally wait for the HARQ process corresponding to the transmitted data of the data unit, so as to receive the retransmission data packet corresponding to the transmission error data unit for hybrid automatic repeat request (HARQ) combination.
  • HARQ hybrid automatic repeat request
  • this data unit has been determined to be wrong or timed out, even if it is received, it has no effect, and the terminal waits to receive the data unit, which will increase the power consumption of the terminal.
  • the terminal will discard the data packet that is being transmitted and the untransmitted data packet of the data unit, and the base station will report the new buffer status of the terminal (buffer status report, BSR) will still be scheduled according to the previously received BSR before reporting, resulting in a waste of uplink scheduling resources.
  • BSR buffer status report
  • FIG. 2 shows a schematic flowchart of a communication method 200 provided by an embodiment of the present application.
  • a first communication device and a second communication device are involved.
  • the communication method provided by the embodiment of the present application may be applied to the uplink of the communication system, and may also be applied to the downlink of the communication system.
  • the communication method 200 includes but not limited to the following steps:
  • the first communication device acquires information about the data unit to which the data packet belongs, where the data unit includes one or more data packets, and the data packet may be discarded in the data unit.
  • the first communication device determines that a certain data unit has a transmission error or a transmission timeout, and since the XR service requires data integrity, the first communication device will discard the data unit, and the data unit is generally divided into multiple data packets The transmission is performed, so the first communication device discards the in-transmission and non-transmission data packets in the data unit.
  • the first communication device will acquire information about the data unit in which packet loss occurs, such as identification information of the data unit.
  • S202 Discard the data packets being transmitted and not transmitted of the data unit.
  • the first communication device discards the data packets being transmitted and not transmitted in the data unit.
  • the first communication device sends indication information to the second communication device, where the indication information includes information about the data unit, such as identification information of the data unit.
  • the second communication device after the second communication device receives the indication information, according to the indication information, such as the identification information of the data unit, it confirms that there is a packet loss phenomenon in the data unit, so the second communication device releases the data according to the identification information of the data unit The HARQ process of the TB corresponding to the unit.
  • the indication information such as the identification information of the data unit
  • the communication method and device provided in the embodiments of the present application can cause the second communication device to release the HARQ process corresponding to the data unit according to the information of the data unit by sending the information of the data unit with packet loss to the second communication device, thereby The power consumption of the second communication device is reduced, and communication resources are saved.
  • FIG. 3 shows a schematic flowchart of a communication method 300 provided by an embodiment of the present application.
  • the communication method 300 is applied to downlink.
  • a first communication device and a second communication device are involved.
  • the communication method 300 includes but not limited to the following steps:
  • S301 Acquire identification information of a data unit to which the data packet belongs.
  • the first communication device sends an XR service data unit to the second communication device, and one data unit includes multiple data packets.
  • the business requires data integrity, and there is no need for the data unit to continue to be transmitted.
  • the first communication device will discard the data packets being transmitted and the untransmitted data packets in the data unit. Before discarding the data unit, the first communication device will acquire the identification information of the data unit to which each data packet in the XR service data unit belongs, so as to identify its corresponding data unit through the data packet.
  • S302 Discard the data packets being transmitted and not transmitted in the data unit.
  • the first communication device will discard the data packets being transmitted and the untransmitted data packets in the data unit.
  • the first communication device sends the second indication information to the second communication device, where the second indication information is information corresponding to each data packet in the XR service data unit and its said data unit identification information.
  • the second indication information is identification information of the data unit to which each transport block (Transport Block, TB) belongs.
  • a TB may contain one or more data packets, and the one or more data packets contained in the TB belong to a data unit.
  • the second indication information may be transmitted through RRC, MAC CE or PDCCH. This application does not limit the way of its transmission.
  • S304 Determine the identification information of the data unit to which each transport block (TB) belongs based on the second indication information.
  • the second communication device may determine the identification information of the data unit to which each TB belongs through the second indication information.
  • the first communication device sends first indication information to the second communication device, where the first indication information includes identification information of the data unit discarded by the first communication device.
  • the first indication information may be transmitted through radio resource control (radio resource controller, RRC) information, media access control control element (Media Access Control control element, MAC CE) information, physical downlink control channel (physical downlink control channel, PDCCH) for transmission.
  • RRC radio resource controller
  • MAC CE media access control control element
  • PDCCH physical downlink control channel
  • S306 Stop or not start a discontinuous reception retransmission timer (DRX Retransmission Timer) of the HARQ process of the TB based on the first indication information.
  • DRX Retransmission Timer discontinuous reception retransmission timer
  • the second communication device releases the HARQ process of the TB corresponding to the data unit in which packet loss occurs.
  • the second communication device may determine the identification information of the data unit discarded by the first communication device according to the first indication information, and then determine the corresponding TB through the identification information.
  • the second communication device stops or does not start the DRX Retransmission Timer of the HARQ process of the TB, thereby entering a low power consumption state.
  • the 5G New Radio (NR) standard introduces Discontinuous Reception (DRX) technology to save power.
  • the basic mechanism of DRX is to configure the DRX cycle for the terminal, as shown in Figure 4.
  • Figure 4 shows a schematic diagram of a DRX cycle.
  • the terminal normally monitors the physical downlink control Channel (Physical Downlink Control Channel, PDCCH), in other periods, the terminal has the opportunity to enter the dormant state and not monitor the PDCCH to reduce power consumption.
  • PDCCH Physical Downlink Control Channel
  • DRX can be configured on the terminal side to reduce power consumption.
  • the standard defines the time window HARQ RTT Timer and DRX Retransmission Timer.
  • the terminal can be in sleep during the HARQ RTT Timer period.
  • the terminal will start a DRX Retransmission Timer for the HARQ process.
  • the terminal will monitor the PDCCH for HARQ retransmission.
  • the first communication device needs to send two data units, data unit 1 and data unit 2, wherein the data packets in data unit 1 are sent on TB1-TB5, and the data packets in data unit 2 are sent on TB6-TB10 send.
  • the first communication device finds that there is an error in the transmission of the data unit 2 when sending to TB8, the TB8 that the data unit 2 is transmitting and the TB9 and TB10 that have not been transmitted will not be sent again.
  • the first communication device sends the second indication information to the second communication device, that is, sends the correspondence relationship between TB1 ⁇ TB10 and the data unit to the second communication device, and the first communication device sends the first indication information to the second communication device, that is, an imminent occurrence
  • the identification information of the lost data unit 2 is sent to the second communication device.
  • the second communication device receives 8 TBs from TB1 to TB8, and based on the second indication information, the second communication device determines that TB1 to TB5 belong to data unit 1, and TB6 to TB8 belong to data unit 2.
  • the second communication device determines that the data unit 2 has lost the packet, and does not start or stop the corresponding DRX Retransmission Timer for the received HARQ process of TB6-TB8. That is, the DRX Retransmission Timer is not started after the HARQ RTT Timer expires, or the DRX Retransmission Timer that has been started is stopped. In this way, the second communication device can enter a low power consumption state.
  • the first communication device can make the second communication device not start or stop the corresponding DRX Retransmission according to the information by sending the identification information of the data unit with packet loss to the second communication device Timer, thereby reducing the power consumption of the second communication device and saving communication resources.
  • FIG. 5 shows a schematic flowchart of another communication method 500 provided by an embodiment of the present application.
  • the communication method 500 is applied to the downlink, and involves a first communication device and a second communication device in the flowchart shown in FIG. 5 .
  • the communication method 500 includes but not limited to the following steps:
  • S502 Discard the data packets being transmitted and not transmitted in the data unit.
  • the first communication device discards data packets being transmitted and not transmitted in the data unit.
  • the first communications device may also stop the HARQ process of the TB corresponding to the data packet being transmitted in the data unit. Specifically, the first communication device may clear the information of the HARQ process, and release the HARQ process number.
  • S504 Send first indication information, where the first indication information includes the number of the stopped HARQ process.
  • the first communication device sends first indication information to the second communication device, where the first indication information includes the stopped HARQ process number described in S503.
  • the first indication information may be transmitted through RRC, MAC CE or PDCCH. This application does not limit the way of its transmission.
  • S505 Stops or does not start the DRX Retransmission Timer of the HARQ process based on the HARQ process number.
  • the second communication device releases the HARQ process of the TB corresponding to the data unit in which packet loss occurs.
  • the second communication device can determine the corresponding HARQ number of the data unit discarded by the first communication device according to the first indication information, and the second communication device directly stops or does not start the HARQ process according to the HARQ number DRX Retransmission Timer, thus entering a low power consumption state.
  • the base station needs to send two data units, data unit 1 and data unit 2, wherein the data packets in data unit 1 are sent on TB1-TB5, and the data packets in data unit 2 are sent on TB6-TB10.
  • the base station finds that there is an error in the transmission of the data unit 2 when sending to TB8, the TB8 that is being transmitted by the data unit 2 and the TB9 and TB10 that are not being transmitted will no longer be sent.
  • the base station stops the transmission of the corresponding TB of the data unit 2 that is transmitting
  • the HARQ processes are processes 6-8.
  • the base station sends the first indication information to the terminal, that is, sends the HARQ process number to the terminal.
  • the terminal receives 8 TBs from TB1 to TB8, and based on the first indication information, the terminal determines that TB1 to TB5 belong to data unit 1, and TB6 to TB8 belong to data unit 2.
  • the terminal determines the HARQ process number that has been stopped at the base station side based on the first indication information, and according to the HARQ process number, does not start or stop the corresponding DRX Retransmission Timer for the received HARQ processes of TB6-TB8. That is, the DRX Retransmission Timer is not started after the HARQ RTT Timer expires, or the DRX Retransmission Timer that has been started is stopped. In this way, the terminal can enter a low power consumption state.
  • the first communication device can make the second communication device not start or stop the corresponding DRX according to the information by sending the HQRA process number of the data unit with packet loss to the second communication device Retransmission Timer, thereby reducing the power consumption of the second communication device and saving communication resources.
  • FIG. 6 shows a schematic flowchart of another communication method 600 provided by an embodiment of the present application.
  • the communication method 600 applies to uplink.
  • a first communication device and a second communication device are involved.
  • the communication method 600 includes but not limited to the following steps:
  • S601 Acquire identification information of the data unit to which the data packet belongs.
  • the second communication device sends an XR service data unit to the first communication device.
  • One data unit includes multiple data packets.
  • the business requires data integrity, and there is no need for the data unit to continue to be transmitted.
  • the second communication device will discard the data packets being transmitted and the untransmitted data packets in the data unit.
  • the second communication device will acquire the identification information of the data unit to which each data packet in the XR service data unit belongs, so as to identify the data unit corresponding to the data packet through the identification information.
  • S602 Discard the data packets being transmitted and not transmitted in the data unit.
  • the second communication device will discard the data packets being transmitted and the untransmitted data packets in the data unit.
  • S603 sends fourth indication information.
  • the second communication device sends fourth indication information to the first communication device, where the fourth indication information is information corresponding to each data packet in the XR service data unit and its said data unit identification information.
  • the fourth indication information is identification information of a data unit to which each data packet belongs.
  • a data unit can include multiple data packets.
  • the fourth indication information may be transmitted through RRC, MAC CE or PUCCH. This application does not limit the way of its transmission.
  • S604 determines the identification information of the data unit to which the TB belongs based on the fourth indication information.
  • the first communication device After the first communication device receives the identification information of the data packet with the packet loss data unit, because the scheduling is implemented by the first communication device, the first communication device can obtain the TB corresponding to each data packet, so the first communication device also The data unit identifier to which each TB belongs can be obtained.
  • S605 Send third indication information.
  • the second communication device sends third indication information to the first communication device, where the third indication information includes identification information of the data unit discarded by the first communication device.
  • the third indication information may be transmitted through RRC, MAC CE or a physical uplink control channel (physical uplink control channel, PUCCH). This application does not limit the way of its transmission.
  • the first communication device releases the HARQ process of the TB corresponding to the data unit in which packet loss occurs, thereby saving resources.
  • the second communication device When packet loss occurs on the side of the second communication device, the second communication device sends BSR information to the first communication device, where the BSR information is used to indicate the current amount of data to be transmitted in the buffer of the second communication device.
  • the first communication device Based on the BSR information, the first communication device confirms the amount of data to be transmitted in the buffer of the second communication device. Since the second communication device discards data packets, the amount of data to be transmitted in the buffer will decrease. The first communication device can The amount of data is reduced, and the scheduling resources are adjusted in real time, so that communication resources can be saved.
  • the terminal needs to send two data units, data unit 1 and data unit 2, wherein the data packets in data unit 1 are sent on TB1-TB5, and the data packets in data unit 2 are sent on TB6-TB10.
  • the terminal finds that there is an error in the transmission of data unit 2 when sending to TB8, the TB8 that is being transmitted and the untransmitted TB9 and TB10 of data unit 2 will not be sent again.
  • the terminal sends fourth indication information to the base station, that is, sends the corresponding relationship between TB1-TB10 and the data unit to the terminal, and sends third indication information to the base station, that is, sends the identification information of the data unit 2 where packet loss occurs to the base station.
  • the base station After the base station receives 8 TBs from TB1 to TB8, based on the fourth indication information, the base station determines that TB1 to TB5 belong to data unit 1, and TB6 to TB8 belong to data unit 2. The base station determines, based on the third indication information, that the data unit 2 is the one where packet loss occurs, and then releases the received HARQ processes of TB6-TB8. The base station also receives the BSR information from the terminal, and confirms the amount of data to be transmitted in the terminal buffer based on the BSR information. Since the terminal discards TB9 and TB10, the amount of data to be transmitted in the buffer will decrease. , real-time adjustment of scheduling resources, so that communication resources can be saved.
  • the second communication device can cause the first communication device to release the corresponding HARQ process according to the information by sending the identification information of the data unit with packet loss to the first communication device, and can Adjust scheduling resources in real time according to BSR information, thereby saving communication resources.
  • FIG. 7 shows a schematic flowchart of another communication method 700 provided by an embodiment of the present application.
  • the communication method 700 applies to uplink.
  • a first communication device and a second communication device are involved.
  • the communication method 700 includes but not limited to the following steps:
  • S701 Acquire identification information of the data unit to which the data packet belongs.
  • S702 Discard the data packets being transmitted and not transmitted in the data unit.
  • the second communication device will discard data packets being transmitted and not transmitted in the data unit.
  • the second communication device may also stop the HARQ process of the TB corresponding to the data packet being transmitted in the data unit. Specifically, the second communication device may clear the information of the HARQ process, and release the HARQ process number.
  • S704 Send third indication information, where the third indication information includes the number of the stopped HARQ process.
  • the second communication device sends third indication information to the first communication device, where the third indication information includes the stopped HARQ process number described in S703.
  • the third indication information may be transmitted through RRC, MAC CE or PUCCH. This application does not limit the way of its transmission.
  • the second communication device When packet loss occurs on the side of the second communication device, the second communication device sends BSR information to the first communication device, where the BSR information is used to indicate the current amount of data to be transmitted in the buffer of the second communication device.
  • the first communication device Based on the BSR information, the first communication device confirms the amount of data to be transmitted in the buffer of the second communication device. Since the second communication device discards data packets, the amount of data to be transmitted in the buffer will decrease. The first communication device can The amount of data is reduced, and the scheduling resources are adjusted in real time, so that communication resources can be saved.
  • the terminal needs to send two data units, data unit 1 and data unit 2, wherein the data packets in data unit 1 are sent on TB1-TB5, and the data packets in data unit 2 are sent on TB6-TB10.
  • the terminal finds that there is an error in the transmission of the data unit 2 when sending to TB8, the TB8 that is being transmitted by the data unit 2 and the untransmitted TB9 and TB10 will not be sent again, and at the same time, the terminal stops the transmission of the corresponding TB of the data unit 2 that is transmitting the data packet.
  • the HARQ processes are processes 6-8.
  • the terminal sends third indication information to the base station, that is, sends the HARQ process number to the base station.
  • the base station receives 8 TBs from TB1 to TB8, and determines the stopped HARQ process number on the terminal side based on the third indication information, and releases the received HARQ processes from TB6 to TB8 according to the HARQ process number.
  • the base station also receives the BSR information from the terminal, and confirms the amount of data to be transmitted in the terminal buffer based on the BSR information. Since the terminal discards TB9 and TB10, the amount of data to be transmitted in the buffer will decrease. , real-time adjustment of scheduling resources, so that communication resources can be saved.
  • the second communication device can cause the first communication device to release the corresponding HARQ process according to the information by sending the HARQ process number corresponding to the data unit with packet loss to the first communication device,
  • scheduling resources can be adjusted in real time according to BSR information, thereby saving communication resources.
  • FIG. 8 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • These communication apparatuses can be used to implement the functions of the first communication device in the above method embodiments, and therefore can also achieve the beneficial effects of the above method embodiments.
  • the communication method provided in the embodiment of the present application is applied to the downlink or the uplink, and the communication device may be the first communication device in the above method embodiment, or it may be applied to the above-mentioned A module (such as a chip) in the first communication device.
  • a communication device 800 includes a processing module 810 and a transceiver module 820 .
  • the communication apparatus 800 is configured to implement the functions of the first communication device in the embodiment corresponding to FIG. 2 , FIG. 3 , FIG. 5 , FIG. 6 or FIG. 7 .
  • the processing module 810 is used to obtain the information of the data unit to which the data packet belongs, and the data unit includes one or more of the data packets; discard the data packets being transmitted and untransmitted of the data unit;
  • the transceiver module 820 is configured to send first indication information to the second communication device, where the first indication information includes the information of the data unit.
  • the first communication device may send the information of the data unit with packet loss to the second communication device, so that the second communication device may stop or not start the transmission block (TB) corresponding to the data unit according to the information. ), the discontinuous reception retransmission timer (DRX Retransmission Timer) of the hybrid automatic repeat request (HARQ) process, thereby reducing the power consumption of the second communication device and saving communication resources.
  • DRX Retransmission Timer discontinuous reception retransmission timer of the hybrid automatic repeat request (HARQ) process
  • the first indication information includes identification information of the data unit.
  • the processing module 810 is further configured to stop the hybrid automatic repeat request (HARQ) process corresponding to the TB of the data packet being transmitted of the above data unit.
  • HARQ hybrid automatic repeat request
  • the transceiver module 820 is further configured to send second indication information to the second communication device, where the second indication information is used to indicate identification information of a data unit to which each transport block (TB) belongs.
  • the first indication information includes the HARQ process number.
  • the first indication information is transmitted through radio resource control (RRC) information, medium access control element (MAC CE) information, physical downlink control channel (PDCCH) or physical downlink data channel (PDSCH).
  • RRC radio resource control
  • MAC CE medium access control element
  • PDCH physical downlink control channel
  • PDSCH physical downlink data channel
  • the transceiver module 820 is further configured to receive third indication information from the second communication device, where the third indication information includes information about a data unit, and the data unit includes one or more data packets .
  • the transceiver module 820 is further configured to receive a BSR from the second communication device, where the BSR includes the amount of data to be transmitted in the buffer of the second communication device;
  • the processing module 810 is further configured to release the HARQ process of the TB corresponding to the data unit based on the third indication information.
  • the third indication information includes identification information of the data unit.
  • the processing module 810 is further configured to release the HARQ process of the TB corresponding to the data unit based on the identification information.
  • the third indication information includes the HARQ process number of the HARQ.
  • the processing module 810 is further configured to release the HARQ process based on the HARQ process number.
  • FIG. 2 , FIG. 3 , FIG. 5 , FIG. 6 or FIG. 7 corresponding to the operation of the first communication device in the embodiment.
  • the communication apparatus 800 may also be used to implement the functions of the second communication device in the above embodiments corresponding to FIG. 2 , FIG. 3 , FIG. 5 , FIG. 6 or FIG. 7 .
  • the transceiver module 820 is configured to receive first indication information from the first communication device, where the first indication information includes information of a data unit, and the data unit includes one or more data packets.
  • the transceiver module 820 is further configured to receive second indication information from the first communication device, where the second indication information is used to indicate the identity of the data unit to which each transport block (TB) belongs information.
  • the first indication information includes identification information of the data unit.
  • the transceiver module 820 is also configured to receive buffer status information (BSR) from the first communication device, where the BSR includes the amount of data to be transmitted in the buffer of the first communication device;
  • BSR buffer status information
  • the processing module 810 stops or does not start the discontinuous reception retransmission timer (DRX Retransmission Timer) of the hybrid automatic repeat request (HARQ) process of the transport block (TB) corresponding to the data unit based on the first indication information.
  • DRX Retransmission Timer discontinuous reception retransmission timer
  • HARQ hybrid automatic repeat request
  • the first indication information includes the HARQ process number of the HARQ.
  • the processing module 810 is also configured to stop or not start the DRX Retransmission Timer of the HARQ process based on the HARQ process number.
  • the first indication information is transmitted through RRC, MAC CE, PDCCH or PDSCH.
  • the processing module 810 is further configured to obtain information about a data unit to which the data packet belongs, where the data unit includes one or more of the data packets; the second communication device discards the information of the data unit Packets in transit and not in transit.
  • the processing module 820 is further configured to send third indication information to the first communication device, where the third indication information includes information about the data unit.
  • the third indication information includes identification information of the data unit.
  • the third indication information includes the HARQ process number of the HARQ.
  • the processing module 820 is further configured to send buffer status information (BSR) to the first communication device, where the BSR includes the amount of data to be transmitted in the buffer of the second communication device.
  • BSR buffer status information
  • the processing module 810 is further configured to stop the HARQ process corresponding to the transport block (TB) of the data packet being transmitted of the data unit.
  • the third indication information is transmitted through RRC, MAC CE, PUCCH or PUSCH.
  • FIG. 2 , FIG. 3 , FIG. 5 , FIG. 6 or FIG. 7 corresponding to the operation of the second communication device in the embodiment.
  • FIG. 9 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 900 includes a processor 910 and an interface circuit 930 .
  • the processor 910 and the interface circuit 930 are coupled to each other. It can be understood that the interface circuit 930 may be a transceiver or an input/output interface.
  • the communication device 900 may further include a memory 920 for storing instructions executed by the processor 920 or storing input data required by the processor 910 to execute the instructions or storing data generated after the processor 910 executes the instructions.
  • the processor 910 is used to realize the functions of the above processing module 810
  • the interface circuit 930 is used to implement the functions of the transceiver module 820 described above.
  • the communication device 900 further includes a bus 940 , and the processor 910 , the interface circuit 930 and the memory 920 can communicate through the bus 940 .
  • the embodiment of the present application also provides a system chip, the system chip includes input and output interfaces, at least one processor, at least one memory and a bus, the at least one memory is used to store instructions, and the at least one processor is used to call the at least one Instructions of the memory to perform the operations of the methods of the various aspects described above.
  • a processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions 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 Program 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 connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
  • 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 the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • 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
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • all or part may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product may comprise one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (such as a floppy disk, a hard disk, a magnetic disk), an optical medium (such as a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)).
  • SSD Solid State Disk
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device 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 can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application 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 functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the 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 are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

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Abstract

本申请提供了一种通信方法及装置，用以解决现有技术应用到 XR 业务丢包场景中导致无效通信的问题，从而降低设备功耗和节省通信资源。在本申请中: 第一通信设备获取数据包所属的数据单元的信息，该数据单元包括一个或多个所述数据包; 第一通信设备丢弃该数据单元的正在传输和未传输的数据包；第一通信设备向第二通信设备发送指示信息，该指示信息包括所述数据单元的信息。基于本申请实施例提供的通信方法，第一通信设备通过将数据单元的信息发送给第二通信设备，可以使第二通信设备依据该数据单元的信息释放该数据单元对应的 HARQ 进程，从而降低第二通信设备的功耗，节省通信资源。

Description

一种通信方法及装置
本申请要求于2021年11月29日提交中国专利局、申请号为202111429638.3、申请名称为“一种通信方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种扩展现实(extended reality，XR)业务的通信方法及装置。
背景技术
在无线通信网络中，扩展现实(extended reality，XR)技术具有多视角、交互性强等优点，能够为用户提供了一种全新的视觉体验，具有极大的应用价值和商业潜力。XR包含虚拟现实(virtual reality，VR)、增强现实(augmented reality，AR)、和混合现实(mix reality，MR)等技术，能够广泛应用于娱乐、游戏、医疗、广告、工业、在线教育、触觉互联网、以及工程等诸多领域。
随着VR设备、内容和平台以及第5代(5th Generation，5G)甚至下一代第6代(6th Generation，6G)网络系统自身在不断地发展完善，研究XR业务的有效传输方式，提升XR业务的网络容量可以有效地推动端到端(End to End，E2E)产业发展。因此，XR业务的有效传输方式具有重要的现实价值。
发明内容
本申请提供了一种通信方法及装置，用以解决现有技术应用到XR业务丢包场景中导致无效通信的问题，从而可以降低设备功耗和节省通信资源。
申请实施例提供的通信方法可以应用于通信系统的上行链路，也可以应用于通信系统的下行链路。
第一方面，本申请实施例提供了一种通信方法，包括：第一通信设备获取数据包所属的数据单元的信息，该数据单元包括一个或多个所述数据包；该第一通信设备丢弃该数据单元的正在传输和未传输的数据包；该第一通信设备向第二通信设备发送第一指示信息，该第一指示信息包括该数据单元的信息。
基于本申请实施例提供的通信方法，第一通信设备通过将数据单元的信息发送给第二通信设备，可以使得第二通信设备依据该数据单元的信息释放该数据单元对应的HARQ进程，从而降低第二通信设备的功耗，节省通信资源。
结合第一方面，在第一方面的某些实施方式中，该第一指示信息包括该数据单元的标识信息。
结合第一方面，在第一方面的某些实施方式中，该第一通信设备向所述第二通信设备发送第二指示信息，该第二指示信息用于指示每个传输块(TB)所属的数据单元的标识信息。
结合第一方面，在第一方面的某些实施方式中，第一通信设备停止该数据单元的正在传输的数据包对应TB的混合自动重传请求(HARQ)进程。
结合第一方面，在第一方面的某些实施方式中，该第一指示信息包括上述HARQ的HARQ进程号。
结合第一方面，在第一方面的某些实施方式中，该第一指示信息通过无线资源控制(RRC)信息、媒体接入控制控制元素(MAC CE)信息、物理下行控制信道(PDCCH)或物理下行数据信道(PDSCH)传输。
第二方面，本申请实施例提供了一种通信方法，包括：第二通信设备接收来自第一通信设备的第一指示信息，该第一指示信息包含数据单元的信息，该数据单元包括一个或多个数据包。该第二通信设备基于该第一指示信息停止或不启动所述数据单元对应传输块(TB)的混合自动重传请求(HARQ)进程的非连续接收重传计时器(DRX Retransmission Timer)。
基于本申请实施例提供的通信方法，第二通信设备可以根据接收到的来自第一通信设备的数据单元的信息，停止或不启动所述数据单元对应TB的HARQ进程的非连续接收重传计时器(DRX Retransmission Timer)，从而降低第二通信设备的功耗，节省通信资源。
结合第二方面，在第二方面的某些实施方式中，该第一指示信息包括该数据单元的标识信息。
结合第二方面，在第二方面的某些实施方式中，该第二通信设备基于该标识信息停止或不启动所述数据单元对应TB的HARQ进程的DRX Retransmission Timer。
结合第二方面，在第二方面的某些实施方式中，该第一指示信息包括上述HARQ的HARQ进程号。
结合第二方面，在第二方面的某些实施方式中，该第二通信设备基于该HARQ进程号停止或不启动该HARQ进程的DRX Retransmission Timer。
结合第二方面，在第二方面的某些实施方式中，该第一指示信息通过RRC、MAC CE、PDCCH或PDSCH传输。
第三方面，本申请实施例提供了一种通信方法，包括：第二通信设备获取数据包所属的数据单元的信息，该数据单元包括一个或多个所述数据包；该第二通信设备丢弃所述数据单元的正在传输和未传输的数据包；该第二通信设备向第一通信设备发送第三指示信息，所述第三指示信息包括所述数据单元的信息。
结合第三方面，在第三方面的某些实施方式中，该第三指示信息包括所述数据单元的标识信息。
结合第三方面，在第三方面的某些实施方式中，该第二通信设备向该第一通信设备发送缓冲区状态信息(BSR)，所述BSR包含所述第二通信设备缓冲区中待传的数据量。
结合第三方面，在第三方面的某些实施方式中，该第二通信设备停止该数据单元的正在传输的数据包对应传输块(TB)的HARQ进程。
结合第三方面，在第三方面的某些实施方式中，该第三指示信息包括该HARQ的HARQ进程号。
结合第三方面，在第三方面的某些实施方式中，该第三指示信息通过RRC、MAC CE、PUCCH或PUSCH传输。
第四方面，本申请实施例提供了一种通信方法，包括：第一通信设备接收来自第二通信设备的第三指示信息，该第三指示信息包含数据单元的信息，该数据单元包括一个或多个数据包；该第一通信设备基于该第三指示信息释放该数据单元对应的TB的HARQ进程。
结合第四方面，在第四方面的某些实施方式中，该第三指示信息包括该数据单元的标识信息。
结合第四方面，在第四方面的某些实施方式中，该第一通信设备基于该标识信息释放该数据单元对应TB的HARQ进程。
结合第四方面，在第四方面的某些实施方式中，该第三指示信息包括该HARQ的HARQ进程号。
结合第四方面，在第四方面的某些实施方式中，该第一通信设备基于该HARQ进程号释放该HARQ进程。
结合第四方面，在第四方面的某些实施方式中，该第一通信设备接收来自该第二通信设备的BSR，该BSR包含该第二通信设备缓冲区中待传的数据量；该第一通信设备基于该BSR确定该第二通信设备需要传输的数据量。
第五方面，本申请实施例提供了一种通信装置，包括用于执行第一方面或第一方面任一种可能的实施方式中所描述的方法的模块，或者执行第四方面或第四方面任一种可能的实施方式中所描述的方法的模块。
第六方面，本申请实施例提供了一种通信装置，包括用于执行第二方面或第二方面任一种可能的实施方式中所描述的方法的模块，或者执行第三方面或第三方面任一种可能的实施方式中所描述的方法的模块。
第七方面，本申请实施例提供了一种通信装置，包括处理器和接口电路，该接口电路用于接收来自该装置之外的其它装置的信号并传输至该处理器或将来自该处理器的信号发送给该装置之外的其它装置，该处理器通过逻辑电路或执行代码指令用于实现第一方面或第一方面的可能的实现方式中所描述的方法，或者实现第二方面或第二方面的可能的实现方式中所描述的方法，或者实现第三方面或第三方面的可能的实现方式中所描述的方法，或者实现第四方面或第四方面的可能的实现方式中所描述的方法。
第八方面，本申请实施例提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当该计算机程序或指令被计算设备执行时，实现第一方面或第一方面的可能的实现方式中所描述的方法，或实现第二方面或第二方面的可能的实现方式中所描述的方法，或者实现第三方面或第三方面的可能的实现方式中所描述的方法，或者实现第四方面或第四方面的可能的实现方式中所描述的方法。
第九方面，本申请实施例提供了一种计算机程序产品，该计算机程序产品包含计算机程序或指令，当该计算机程序或指令被计算设备执行时，实现第一方面或第一方面的可能的实现方式中所描述的方法，或实现第二方面或第二方面的可能的实现方式中所描述的方法，或者实现第三方面或第三方面的可能的实现方式中所描述的方法，或者实现第四方面或第四方面的可能的实现方式中所描述的方法。
第十方面，本申请实施例提供了提供了一种通信系统，该通信系统包括如下中一个或多个：如第五方面，第六方面或第七方面提供的通信装置，如第八方面提供的一种计算机可读存储介质，以及如第九方面提供的一种计算机程序产品。
附图说明
图1为本申请实施例中一种可能的通信架构示意图；
图2为本申请实施例中一种可能的通信方法示意性流程图；
图3为本申请实施例中一种可能的通信方法再一示意性流程图；
图4为本申请实施例中一种可能的DRX周期示意图；
图5为本申请实施例中一种可能的通信方法再一示意性流程图；
图6为本申请实施例中一种可能的通信方法再一示意性流程图；
图7为本申请实施例中一种可能的通信方法再一示意性流程图；
图8为本申请实施例提供的一种通信装置的示意性框图；
图9为本申请实施例提供的一种通信装置的再一示意性框图。
具体实施方式
本申请实施例提供的方法及装置可以应用于通信系统中。如图1示出了一种通信系统结构示意图。该通信系统100中包括一个或多个接入网设备(图中示出接入网设备110和接入网设备120)，以及与该一个或多个接入网设备通信的一个或多个终端。图1中所示终端114和终端118与接入网设备110通信，所示终端124和终端128与接入网设备120通信。可以理解的是，接入网设备和终端也可以被称为通信设备。
本申请实施例提供的方法及装置可用于各种通信系统，例如第四代(4th generation，4G)通信系统，4.5G通信系统，5G通信系统，多种通信系统融合的系统，或者未来演进的通信系统(比如5.5G通信系统或6G通信系统)。例如长期演进(long term evolution，LTE)系统，新空口(new radio,NR)系统，无线保真(wireless-fidelity，WiFi)系统，以及第三代合作伙伴计划(3rd generation partnership project，3GPP)相关的通信系统等，以及其他此类通信系统。
本申请实施例提供的方法及装置可以应用于多种通信系统架构中。如图2示出了一种通信系统架构示意图。在该通信系统的架构中，终端通过接入网(radio access network，RAN)设备接入核心网。终端可以通过接入网和核心网建立与数据网络(data network，DN)或数据网络中的服务器之间的连接。其中，数据网络例如可以包括运营商服务、因特网(Internet)或者第三方服务等。在4G通信系统中，该连接可以为分组数据网络连接(packet data network connection，PDN connection)或者承载。在5G通信系统中，该连接可以为协议数据单元会话(protocol data unit session，PDU Session)。在未来通信系统如第六代(6th generation，6G)通信系统中，该连接可以是PDU会话、或者是PDN连接、或者是其他类似的概念，本申请实施例对此不作限定。在本申请实施例中，终端与数据网络或服务器之间建立的连接也可称为会话。
本申请中的第一通信设备可以是任意一种具有无线收发功能的设备。包括但不限于：LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，NR中的基站(gNodeB或gNB)或收发点(transmission receiving point/transmission reception point,TRP)，3GPP后续演进的基站，WiFi系统中的接入节点，无线中继节点，无线回传节点，核心网设备等。基站可以是：宏基站，微基站，微微基站，小站，中继站，或，气球站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的TRP。接入网设备还可以是服务器(例如云服务器)、云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)，和/或，分布单元(distributed unit,DU)。接入网设备还可以是服务器，可穿戴设备，机器通信设备、车载设备、或智慧屏幕等。以下以接入网设备为基站为例进行说明。所述多个接入网设备可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端设备进行通信，也可以通过中继站与终端设备进行通信。终端设备可以与不同技术的多个基站进行通信，例如，终端设备可以与支持LTE网络的基站通信，也可以与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
本申请中的第二通信设备可以是一种具有无线收发功能的设备，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)。所述终端可以是手机(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)中的终端、车载终端设备、无人驾驶(self driving)中的终端、辅助驾驶中的终端、远程医疗(remote medical)中的终端、智能电网(smart grid)中的终端、运输安全(transportation safety)中的终端、智慧城市(smart city)中的终端、智慧家庭(smart home)中的终端等等。本申请的实施例对应用场景不做限定。终端有时也可以称为终端设备、用户设备(user equipment，UE)、接入终端设备、车载终端、工业控制终端、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、无线通信设备、机器终端、UE代理或UE装置等。终端可以是固定的，也可以是移动的。
作为示例而非限定，在本申请中，第二通信设备可以是可穿戴设备。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。
在本申请中，第二通信设备可以是物联网(internet of things，IoT)系统中的终端，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。本申请中的第二通信设备可以是机器类型通信(machine type communication，MTC)中的第二通信设备。本申请的第二通信设备可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元，车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元可以实施本申请的方法。因此，本申请实施例可以应用于车联网，例如车辆外联(vehicle to everything，V2X)、车间通信长期演进技术(long term evolution vehicle，LTE-V)、车到车(vehicle to vehicle，V2V)等。
在本申请中的第二通信设备还可以是VR终端、AR终端、或MR终端。VR终端、AR终端、和MR终端都可称为XR终端。XR终端例如可以是头戴式设备(例如头盔或眼镜)，也可以是一体机，还可以是电视、显示器、汽车、车载设备、平板、智慧屏、全息投影仪、视频播放器、远程控制机器人、触觉互联网终端等。XR终端能够将XR数据呈现给用户，用户通过佩戴或使用XR终端能够体验多样化的XR业务。XR终端可以通过无线或有线的方式接入网络，例如通过WiFi或5G系统接入网络。
可以理解，随着网络的演进，上述网元的名称可能发生变化，网元的功能也可能发生合并、分离、甚至改变，但这些变化并不意味着脱离了本申请方案的适用范围。
XR业务对数据的完整性有要求，例如，XR的视频帧的传输，目前使用较多的方法是将一幅画面帧在网络传输层分成几十个网际协议(Internet Protocol，IP)包，传输到核心网，之后该IP数据包再经过无线接入网(Radio Access Network，RAN)传输到UE。在网络传输的过程中，如果一个IP包传输出错，则会导致整个画面帧无法恢复。
此外，XR业务对于时延有要求，例如，XR的视频帧传输，对于超过时延限制的视频帧，终端侧在解码时也无法正常显示。考虑视频帧传输的完整性，对于已经出现传输错误或者超过时延限制的视频帧，在发送端可以丢弃属于该视频帧的正在传输和未传输的数据包。
发送端由于考虑数据的完整性发生丢包，接收端如果没有相应的处理，会造成功耗增加和资源浪费。例如，XR业务的下行传输，若基站侧因为数据单元传输已确定错误或者超时，则基站侧会丢弃该数据单元正在传输和为传输的数据包。其中该数据单元包括多个数据包。在终端侧会正常等待该数据单元已传输数据对应的HARQ进程，以接收对应传输错误数据单元的重传数据包进行混合自动重传请求(hybrid automatic repeat request，HARQ)合并。而从终端侧看，这种数据单元已确定错误或超时，即使进行接收也没有作用，终端等待接收该数据单元会造成终端功耗增加。再例如，XR业务的上行传输，若终端侧因为数据单元传输已确定错误或超时，终端会丢弃该数据单元正在传输和为传输的数据包，基站侧在终端新的缓冲区状态报告(buffer status report，BSR)上报前仍会按照之前接收的BSR进行调度，造成上行调度资源的浪费。此外，属于同一数据单元的重传的数据包仍会进行重传并占据HARQ进程，造成资源和进程的浪费。因此如何在XR业务发生丢包时，避免无效的通信，从而降低设备功耗和节省通信资源成为亟待解决的问题。
请参见图2，图2示出了本申请实施例提供的一种通信方法200示意性流程图。在图2所示的流程图中涉及第一通信设备和第二通信设备。本申请实施例提供的通信方法可以应用于通信系统的上行链路，也应用于通信系统的下行链路。该通信方法200包括但不限于如下步骤：
S201获取数据包所属的数据信息。
第一通信设备获取数据包所属的数据单元的信息，该数据单元包括一个或多个该数据包，该数据单元存在丢弃数据包的情况。
示例性地，第一通信设备确定某个数据单元传输错误或者传输超时，由于XR业务要求数据的完整性，所以该第一通信设备会丢弃该数据单元，该数据单元一般分为多个数据包进行传输，因此该第一通信设备会丢弃该数据单元中正在传输和未传输的数据包。该第一通信设备将获取存在丢包现象的该数据单元的信息，例如该数据单元的标识信息等。
S202丢弃该数据单元的正在传输和未传输的数据包。
由于该数据单元一般分为多个数据包进行传输，因此该第一通信设备会丢弃该数据单元中正在传输和未传输的数据包。
S203发送指示信息。
第一通信设备向第二通信设备发送指示信息，该指示信息包括该数据单元的信息，例如该数据单元的标识信息等。
S204基于指示信息释放数据单元对应的TB的HARQ进程。
示例性地，第二通信设备收到指示信息后，根据指示信息，例如数据单元的标识信息，确认该数据单元存在丢包现象，因此该第二通信设备根据该数据单元的标识信息释放该数据单元对应的TB的HARQ进程。
本申请实施例提供的通信方法及装置，通过将存在丢包的数据单元的信息发送给第二通信设备，可以使得第二通信设备依据该数据单元的信息释放该数据单元对应的 HARQ进程，从而降低第二通信设备的功耗，节省通信资源。
基于图2请参见图3，图3示出了本申请实施例提供的一种通信方法300示意性流程图。通信方法300应用于下行链路。在图3所示的流程图中涉及第一通信设备和第二通信设备。通信方法300包括但不限于如下步骤：
S301获取数据包所属的数据单元的标识信息。
第一通信设备向第二通信设备发送XR业务数据单元，其中一个数据单元包括多个数据包，当第一通信设备侧某个数据单元的传输发生错误，或者该数据单元的传输超时，由于XR业务对数据完整性的要求，该数据单元没有必要再继续传输。第一通信设备将丢弃该数据单元中正在传输的数据包和未传输的数据包。第一通信设备在丢弃该数据单元之前将获取XR业务数据单元中每个数据包所属的数据单元的标识信息，以便通过数据包识别其对应的数据单元。
S302丢弃数据单元中的正在传输和未传输的数据包。
当第一通信设备侧某个数据单元的传输发生错误，或者该数据单元的传输超时，由于XR业务对数据完整性的要求，该数据单元没有必要再继续传输。第一通信设备将丢弃该数据单元中正在传输的数据包和未传输的数据包。
S303发送第二指示信息。
第一通信设备向第二通信设备发送第二指示信息，该第二指示信息为XR业务数据单元中每个数据包与其所述的数据单元标识信息的对应信息。
在一种可能的实施方式中，该第二指示信息为每个传输块(Transport Block，TB)所属的数据单元的标识信息。一个TB可能包含一个或者多个数据包，该TB包含的一个或多个数据包属于一个数据单元。
在一种可能的实施方式中，该第二指示信息可以通过RRC、MAC CE或者PDCCH进行传输。本申请对其传输的方式不作限定。
S304基于第二指示信息确定每个传输块(TB)所属的数据单元的标识信息。
第二通信设备收到第二指示信息后，可以通过该第二指示信息确定每个TB所属的数据单元的标识信息。
S305发送第一指示信息。
第一通信设备向第二通信设备发送第一指示信息，该第一指示信息包括第一通信设备丢弃的数据单元的标识信息。
在一种可能的实施方式中，该第一指示信息可以通过无线资源控制(radio resource controller，RRC)信息、媒体接入控制控制元素(Media Access Control control element，MAC CE)信息、物理下行控制信道(physical downlink control channel，PDCCH)进行传输。本申请对其传输的方式不作限定。
S306基于第一指示信息停止或不启动TB的HARQ进程的非连续接收重传计时器(DRX Retransmission Timer)。
第二通信设备基于该第一指示信息将上述发生丢包的数据单元对应的TB的HARQ进程进行释放。
在一种可能的实施方式中，第二通信设备根据第一指示信息可以确定第一通信设备丢弃的数据单元的标识信息，进而通过标识信息可以确定对应的TB。第二通信设备停止或不启动该TB的HARQ进程的DRX Retransmission Timer，从而进入低功耗状态。
下面对DRX Retransmission Timer做一下解释：
5G新空口(New Radio，NR)标准引入了非连续接收(Discontinuous Reception，DRX)技术用于省电。DRX的基本机制是给终端配置DRX周期，如图4所示，图4示出了一种DRX周期示意图，在DRX周期的持续定时器(On Duration Timer)时段，终端正常监听物理下行链路控制信道(Physical Downlink Control Channel，PDCCH)，在其他时段，终端有机会进入休眠状态，不监听PDCCH以减少功耗。对于XR业务，由于数据包的产生和到达并不是连续的，所以终端侧可以配置DRX以减少功耗。为了保障配置了DRX的终端对于下行重传PDCCH的监听，标准定义了时间窗HARQ RTT Timer和DRX Retransmission Timer，当某个下行HARQ进程的TB解码失败时，在HARQ RTT Timer时段，终端可以处于休眠，不监听PDCCH，当HARQ RTT Timer超时，且HARQ进程接收TB没有被成功解码时，终端会为该HARQ进程启动一个DRX Retransmission Timer。当DRX Retransmission Timer运行时，终端会监听用于HARQ重传的PDCCH。
示例性地，第一通信设备需要发送两个数据单元，数据单元1和数据单元2，其中数据单元1中的数据包在TB1～TB5上发送，数据单元2中的数据包在TB6～TB10上发送。第一通信设备在发送到TB8时发现数据单元2传输存在错误，则数据单元2正在传输的TB8和未传输的TB9，TB10不再发送。第一通信设备向第二通信设备发送第二指示信息，即将TB1～TB10与数据单元的对应关系发送给第二通信设备，并且第一通信设备向第二通信设备发送第一指示信息，即将发生丢包的数据单元2的标识信息发送给第二通信设备。第二通信设备接收到TB1～TB8 8个TB，基于第二指示信息，第二通信设备确定TB1～TB5属于数据单元1，TB6～TB8属于数据单元2。第二通信设备基于第一指示信息确定发生丢包的是数据单元2，则对于已接收的TB6～TB8的HARQ进程不启动或停止对应的DRX Retransmission Timer。即，在HARQ RTT Timer超时后不启动DRX Retransmission Timer，或停止已经启动的DRX Retransmission Timer。这样第二通信设备可以进入低功耗状态。
本申请实施例提供的通信方法及装置，第一通信设备通过将存在丢包的数据单元的标识信息发送给第二通信设备，可以使得第二通信设备依据该信息不启动或停止对应的DRX Retransmission Timer，从而降低第二通信设备的功耗，节省通信资源。
基于图2请参见图5，图5示出了本申请实施例提供的又一种通信方法500示意性流程图。通信方法500应用于下行链路，在图5所示的流程图中涉及第一通信设备和第二通信设备。通信方法500包括但不限于如下步骤：
S501获取数据包所属数据单元的标识信息。
详细过程请参见前述S301的描述。
S502丢弃数据单元中的正在传输和未传输的数据包。
详细过程请参见前述S302的描述。
S503停止正在传输数据包对应的TB的HARQ进程。
第一通信设备侧某一数据单元存在丢包现象，第一通信设备将丢弃该数据单元中正在传输和未传输的数据包。此外，第一通信设备还可以停止该数据单元中正在传输的数据包对应的TB的HARQ进程。具体地，第一通信设备可以清空该HARQ进程的信息，释放该HARQ进程号。
S504发送第一指示信息，该第一指示信息包括已停止的HARQ进程号。
第一通信设备向第二通信设备发送第一指示信息，该第一指示信息包括S503中描述的已停止的HARQ进程号。
在一种可能的实施方式中，该第一指示信息可以通过RRC、MAC CE或者PDCCH进行传输。本申请对其传输的方式不作限定。
S505基于HARQ进程号停止或不启动该HARQ进程的DRX Retransmission Timer。
第二通信设备基于该第一指示信息将上述发生丢包的数据单元对应的TB的HARQ进程进行释放。
在一种可能的实施方式中，第二通信设备根据第一指示信息可以确定第一通信设备丢弃的数据单元的对应的HARQ号，第二通信设备直接根据该HARQ号停止或不启动该HARQ进程的DRX Retransmission Timer，从而进入低功耗状态。
示例性地，基站需要发送两个数据单元，数据单元1和数据单元2，其中数据单元1中的数据包在TB1～TB5上发送，数据单元2中的数据包在TB6～TB10上发送。基站在发送到TB8时发现数据单元2传输存在错误，则数据单元2正在传输的TB8和未传输的TB9，TB10不再发送，同时，基站停止该数据单元2的正在传输数据包的对应TB的HARQ进程，即进程6～8。基站向终端发送第一指示信息，即将HARQ进程号发送给终端。终端接收到TB1～TB8 8个TB，基于第一指示信息，终端确定TB1～TB5属于数据单元1，TB6～TB8属于数据单元2。终端基于第一指示信息确定基站侧已停止的HARQ进程号，根据该HARQ进程号，则对于已接收的TB6～TB8的HARQ进程不启动或停止对应的DRX Retransmission Timer。即，在HARQ RTT Timer超时后不启动DRX Retransmission Timer，或停止已经启动的DRX Retransmission Timer。这样终端可以进入低功耗状态。
本申请实施例提供的通信方法及装置，第一通信设备通过将存在丢包的数据单元的HQRA进程号送给第二通信设备，可以使得第二通信设备依据该信息不启动或停止对应的DRX Retransmission Timer，从而降低第二通信设备的功耗，节省通信资源。
基于图2请参见图6，图6示出了本申请实施例提供的再一种通信方法600示意性流程图。通信方法600应用于上行链路。在图6所示的流程图中涉及第一通信设备和第二通信设备。通信方法600包括但不限于如下步骤：
S601获取数据包所属数据单元的标识信息。
第二通信设备向第一通信设备发送XR业务数据单元，其中一个数据单元包括多个数据包，当第二通信设备侧某个数据单元的传输发生错误，或者该数据单元的传输超时，由于XR业务对数据完整性的要求，该数据单元没有必要再继续传输。第二通信设备将丢弃该数据单元中正在传输的数据包和未传输的数据包。第二通信设备在丢弃该数据单元之前将获取XR业务数据单元中每个数据包所属的数据单元的标识信息，以便通过标识信息识别数据包对应的数据单元。
S602丢弃数据单元中正在传输和未传输的数据包。
当第二通信设备侧某个数据单元的传输发生错误，或者该数据单元的传输超时，由于XR业务对数据完整性的要求，该数据单元没有必要再继续传输。第二通信设备将丢弃该数据单元中正在传输的数据包和未传输的数据包。
可选地，S603发送第四指示信息。
第二通信设备向第一通信设备发送第四指示信息，该第四指示信息为XR业务数据单元中每个数据包与其所述的数据单元标识信息的对应信息。
在一种可能的实施方式中，该第四指示信息为每个数据包所属的数据单元的标识信息。一个数据单元可以包括多个数据包。
在一种可能的实施方式中，该第四指示信息可以通过RRC、MAC CE或者PUCCH 进行传输。本申请对其传输的方式不作限定。
可选地，S604基于第四指示信息确定TB所属的数据单元的标识信息。
第一通信设备收到存在丢包数据单元的数据包的标识信息后，由于调度时通过第一通信设备实现的，第一通信设备可以获取每个数据包对应的TB，所以第一通信设备也可以获取每个TB所属的数据单元标识。
S605发送第三指示信息。
第二通信设备向第一通信设备发送第三指示信息，该第三指示信息包括第一通信设备丢弃的数据单元的标识信息。
在一种可能的实施方式中，该第三指示信息可以通过RRC、MAC CE或者物理上行控制信道(physical uplink control channel，PUCCH)进行传输。本申请对其传输的方式不作限定。
S606基于第三指示信息释放该数据单元对应TB的HARQ进程。
第一通信设备基于该第三指示信息将上述发生丢包的数据单元对应的TB的HARQ进程进行释放，从而节省资源。
S607发送BSR信息。
第二通信设备侧存在丢包时，第二通信设备向第一通信设备发送BSR信息，该BSR信息用于指示当前第二通信设备buffer中的待传输的数据量。
S608基于BSR信息确认第二通信设备需要传输的数据。
第一通信设备基于BSR信息确认第二通信设备buffer中待传输的数据量，由于第二通信设备发生了丢弃数据包，所以buffer中的待传输数据量会减少，第一通信设备可以根据buffer中数据量的减少，实时调整调度资源，从而可以节省通信资源。
示例性地，终端需要发送两个数据单元，数据单元1和数据单元2，其中数据单元1中的数据包在TB1～TB5上发送，数据单元2中的数据包在TB6～TB10上发送。终端在发送到TB8时发现数据单元2传输存在错误，则数据单元2正在传输的TB8和未传输的TB9，TB10不再发送。终端向基站发送第四指示信息，即将TB1～TB10与数据单元的对应关系发送给终端，并且向基站发送第三指示信息，即将发生丢包的数据单元2的标识信息发送给基站。基站接收到TB1～TB8 8个TB后，基于第四指示信息，基站确定TB1～TB5属于数据单元1，TB6～TB8属于数据单元2。基站基于第三指示信息确定发生丢包的是数据单元2，则释放已接收的TB6～TB8的HARQ进程。基站还接收来自终端的BSR信息，并基于BSR信息确认终端buffer中待传输的数据量，由于终端丢弃TB9和TB10，所以buffer中的待传输数据量会减少，基站可以根据buffer中数据量的减少，实时调整调度资源，从而可以节省通信资源。
本申请实施例提供的通信方法及装置，第二通信设备通过将存在丢包的数据单元的标识信息发送给第一通信设备，可以使得第一通信设备根据该信息释放相应的HARQ进程，并且可以根据BSR信息实时调整调度资源，从而节省通信资源。
基于图2请参见图7，图7示出了本申请实施例提供的再一种通信方法700示意性流程图。通信方法700应用于上行链路。在图7所示的流程图中涉及第一通信设备和第二通信设备。通信方法700包括但不限于如下步骤：
S701获取数据包所属数据单元的标识信息。
详细过程请参见前述S601的描述。
S702丢弃数据单元中的正在传输和未传输的数据包。
详细过程请参见前述S602的描述。
S703停止正在传输数据包对应的TB的HARQ进程。
第二通信设备侧某一数据单元存在丢包现象，第二通信设备将丢弃该数据单元中正在传输和未传输的数据包。此外，第二通信设备还可以停止该数据单元中正在传输的数据包对应的TB的HARQ进程。具体地，第二通信设备可以清空该HARQ进程的信息，释放该HARQ进程号。
S704发送第三指示信息，该第三指示信息包括已停止的HARQ进程号。
第二通信设备向第一通信设备发送第三指示信息，该第三指示信息包括S703中描述的已停止的HARQ进程号。
在一种可能的实施方式中，该第三指示信息可以通过RRC、MAC CE或者PUCCH进行传输。本申请对其传输的方式不作限定。
S705基于HARQ进程号释放该数据单元对应TB的HARQ进程。
S706发送BSR信息。
第二通信设备侧存在丢包时，第二通信设备向第一通信设备发送BSR信息，该BSR信息用于指示当前第二通信设备buffer中的待传输的数据量。
S707基于BSR信息确认第二通信设备需要传输的数据。
第一通信设备基于BSR信息确认第二通信设备buffer中待传输的数据量，由于第二通信设备发生了丢弃数据包，所以buffer中的待传输数据量会减少，第一通信设备可以根据buffer中数据量的减少，实时调整调度资源，从而可以节省通信资源。
示例性地，终端需要发送两个数据单元，数据单元1和数据单元2，其中数据单元1中的数据包在TB1～TB5上发送，数据单元2中的数据包在TB6～TB10上发送。终端在发送到TB8时发现数据单元2传输存在错误，则数据单元2正在传输的TB8和未传输的TB9，TB10不再发送，同时，终端停止该数据单元2的正在传输数据包的对应TB的HARQ进程，即进程6～8。终端向基站发送第三指示信息，即将HARQ进程号发送基站。基站接收到TB1～TB8 8个TB，并基于第三指示信息确定终端侧已停止的HARQ进程号，基站根据该HARQ进程号，则释放已接收的TB6～TB8的HARQ进程。基站还接收来自终端的BSR信息，并基于BSR信息确认终端buffer中待传输的数据量，由于终端丢弃TB9和TB10，所以buffer中的待传输数据量会减少，基站可以根据buffer中数据量的减少，实时调整调度资源，从而可以节省通信资源。
本申请实施例提供的通信方法及装置，第二通信设备通过将存在丢包的数据单元对应的HARQ进程号发送给第一通信设备，可以使得第一通信设备根据该信息释放相应的HARQ进程，并且可以根据BSR信息实时调整调度资源，从而节省通信资源。
图8为本申请实施例提供的一种通信装置的示意性框图。这些通信装置可以用于实现上述方法实施例中第一通信设备的功能，因此也能实现上述方法实施例所具备的有益效果。在本申请的实施例中，本申请实施例提供的通信方法应用于下行链路也可以应用于上行链路，该通信装置可以是上述方法实施例中第一通信设备，也可以是应用于上述第一通信设备中的模块(如芯片)。
如图8所示，通信装置800包括处理模块810和收发模块820。通信装置800用于实现上述图2，图3，图5，图6或图7中所对应的实施例中第一通信设备的功能。
示例性地：
处理模块810用于获取数据包所属的数据单元的信息，该数据单元包括一个或多个所述 数据包；丢弃该数据单元的正在传输和未传输的数据包；
收发模块820用于向第二通信设备发送第一指示信息，该第一指示信息包括该数据单元的信息。按照上述的通信方法，第一通信设备可以通过将存在丢包的数据单元的信息发送给第二通信设备，可以使得第二通信设备依据该信息停止或不启动所述数据单元对应传输块(TB)的混合自动重传请求(HARQ)进程的非连续接收重传计时器(DRX Retransmission Timer)，从而降低第二通信设备的功耗，节省通信资源。
可选地，该第一指示信息包括所述数据单元的标识信息。
在一种可选的方式中，处理模块810，还用于停止上述数据单元的正在传输的数据包对应TB的混合自动重传请求(HARQ)进程。
在一种可选的方式中，收发模块820，还用于向第二通信设备发送第二指示信息，该第二指示信息用于指示每个传输块(TB)所属的数据单元的标识信息。
可选地，该第一指示信息包括所述HARQ进程号。
可选地，该第一指示信息通过无线资源控制(RRC)信息、媒体接入控制控制元素(MAC CE)信息、物理下行控制信道(PDCCH)或物理下行数据信道(PDSCH)传输。
在一种可选的方式中，收发模块820，还用于接收来自第二通信设备的第三指示信息，该第三指示信息包含数据单元的信息，所述数据单元包括一个或多个数据包。
在一种可选的方式中，收发模块820，还用于接收来自所述第二通信设备的BSR，该BSR包含第二通信设备缓冲区中待传的数据量；
在一种可选的方式中，处理模块810，还用于基于该第三指示信息释放该数据单元对应的TB的HARQ进程。
可选地，该第三指示信息包括该数据单元的标识信息。
在一种可选的方式中，处理模块810，还用于基于该标识信息释放所述数据单元对应TB的HARQ进程。
可选地，该第三指示信息包括所述HARQ的HARQ进程号。
在一种可选的方式中，处理模块810，还用于基于该HARQ进程号释放所述HARQ进程。
以上仅为当通信装置800用于实现图2，图3，图5，图6或图7中所示的方法实施例的部分举例，通信装置800中处理模块810和收发模块820的功能，可参考图2，图3，图5，图6或图7中所对应的实施例中第一通信设备的操作。
通信装置800还可以用于实现上述图2，图3，图5，图6或图7中所对应的实施例中第二通信设备的功能。
示例性地：
收发模块820，用于接收来自第一通信设备的第一指示信息，该第一指示信息包含数据单元的信息，所述数据单元包括一个或多个数据包。
在一种可选的方式中，收发模块820，还用于接收来自于第一通信设备的第二指示信息，该第二指示信息用于指示每个传输块(TB)所属的数据单元的标识信息。
可选地，该第一指示信息包括该数据单元的标识信息。
在一种可选的方式中，收发模块820，还用于接收来自第一通信设备的缓冲区状态信息(BSR)，该BSR包含该第一通信设备缓冲区中待传的数据量；
处理模块810，基于该第一指示信息停止或不启动该数据单元对应传输块(TB)的混合自动重传请求(HARQ)进程的非连续接收重传计时器(DRX Retransmission Timer)。
可选地，该第一指示信息包括该HARQ的HARQ进程号。在一种可选的方式中，处理 模块810，还用于基于该HARQ进程号停止或不启动所述HARQ进程的DRX Retransmission Timer。
可选地，该第一指示信息通过RRC、MAC CE、PDCCH或PDSCH传输。
在一种可选的方式中，处理模块810，还用于获取数据包所属的数据单元的信息，该数据单元包括一个或多个所述数据包；该第二通信设备丢弃所述数据单元的正在传输和未传输的数据包。
在一种可选的方式中，处理模块820，还用于向第一通信设备发送第三指示信息，该第三指示信息包括所述数据单元的信息。
可选地，该第三指示信息包括该数据单元的标识信息。
可选地，该第三指示信息包括所述HARQ的HARQ进程号。
在一种可选的方式中，处理模块820，还用于向所述第一通信设备发送缓冲区状态信息(BSR)，该BSR包含所述第二通信设备缓冲区中待传的数据量。
在一种可选的方式中，处理模块810，还用于停止所述数据单元的正在传输的数据包对应传输块(TB)的HARQ进程。
可选地，该第三指示信息通过RRC、MAC CE、PUCCH或PUSCH传输。
以上仅为当通信装置800用于实现图2，图3，图5，图6或图7中所示的方法实施例的部分举例，通信装置800中处理模块810和收发模块820的功能，可参考图2，图3，图5，图6或图7中所对应的实施例中第二通信设备的操作。
图9为本申请实施例提供的一种通信装置的再一示意性框图。如图9所示。通信装置900包括处理器910和接口电路930。处理器910和接口电路930之间相互耦合。可以理解的是，接口电路930可以为收发器或输入输出接口。
可选的，通信装置900还可以包括存储器920，用于存储处理器920执行的指令或存储处理器910运行指令所需要的输入数据或存储处理器910运行指令后产生的数据。
当通信装置900用于实现图2，图3，图5，图6或图7所示的第一通信设备和第二通信设备的功能时，处理器910用于实现上述处理模块810的功能，接口电路930用于实现上述收发模块820的功能。
可选地，通信装置900还包括总线940，该处理器910、该接口电路930和该存储器920可以通过总线940进行通信。
本申请实施例还提供了一种系统芯片，该系统芯片包括输入输出接口、至少一个处理器、至少一个存储器和总线，该至少一个存储器用于存储指令，该至少一个处理器用于调用该至少一个存储器的指令，以进行上述各个方面的方法的操作。
在本申请实施例中，应注意，本申请实施例上述的方法实施例可以应用于处理器中，或者由处理器实现。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。
上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品可以包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁盘)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。
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。基于这样的理解，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、随机存取存储器、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 (32)

  1. 一种通信方法，其特征在于，包括：
    第一通信设备获取数据包所属的数据单元的信息，所述数据单元包括一个或多个所述数据包；
    所述第一通信设备丢弃所述数据单元的正在传输和未传输的数据包；
    所述第一通信设备向第二通信设备发送第一指示信息，所述第一指示信息包括所述数据单元的信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一指示信息包括所述数据单元的标识信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备向所述第二通信设备发送第二指示信息，所示第二指示信息用于指示每个传输块TB所属的数据单元的标识信息。。
  4. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备停止所述数据单元的正在传输的数据包对应TB的混合自动重传请求HARQ进程。
  5. 根据权利要求4所述的方法，其特征在于，所述第一指示信息包括所述HARQ的HARQ进程号。
  6. 根据权利要求1-5中任一所述的方法，其特征在于，所述第一指示信息通过无线资源控制RRC信息、媒体接入控制控制元素MAC CE信息、物理下行控制信道PDCCH或物理下行数据信道PDSCH传输。
  7. 一种通信方法，其特征在于，包括：
    第二通信设备接收来自第一通信设备的第一指示信息，所述第一指示信息包含数据单元的信息，所述数据单元包括一个或多个数据包。
    所述第二通信设备基于所述第一指示信息停止或不启动所述数据单元对应传输块TB的混合自动重传请求HARQ进程的非连续接收重传计时器DRX Retransmission Timer。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备接收来自于所述第一通信设备的第二指示信息，所示第二指示信息用于指示每个TB所属的数据单元的标识信息。。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第一指示信息包括所述数据单元的标识信息。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备基于所述标识信息停止或不启动所述数据单元对应TB的HARQ进程的DRX Retransmission Timer。
  11. 根据权利要求7所述的方法，其特征在于，所述第一指示信息包括所述HARQ的HARQ进程号。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备基于所述HARQ进程号停止或不启动所述HARQ进程的DRX Retransmission Timer。
  13. 根据权利要求7-12中任一所述的方法，其特征在于，所述第一指示信息通过RRC、MAC CE、PDCCH或PDSCH传输。
  14. 一种通信方法，其特征在于，包括：
    第二通信设备获取数据包所属的数据单元的信息，所述数据单元包括一个或多个所述数据包；
    所述第二通信设备丢弃所述数据单元的正在传输和未传输的数据包；
    所述第二通信设备向第一通信设备发送第三指示信息，所述第三指示信息包括所述数据单元的信息。
  15. 根据权利要求14所述的方法，其特征在于，所述第三指示信息包括所述数据单元的标识信息。
  16. 根据权利要求14或15所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备向所述第一通信设备发送缓冲区状态信息BSR，所述BSR包含所述第二通信设备缓冲区中待传的数据量。
  17. 根据权利要求14或15所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备停止所述数据单元的正在传输的数据包对应传输块TB的HARQ进程。
  18. 根据权利要求17所述的方法，其特征在于，所述第三指示信息包括所述HARQ的HARQ进程号。
  19. 根据权利要求14-18中任一所述的方法，其特征在于，所述第三指示信息通过RRC、MAC CE、PUCCH或PUSCH传输。
  20. 一种通信方法，其特征在于，包括：
    第一通信设备接收来自第二通信设备的第三指示信息，所述第三指示信息包含数据单元的信息，所述数据单元包括一个或多个数据包；
    所述第一通信设备基于所述第三指示信息释放所述数据单元对应的TB的HARQ进程。
  21. 根据权利要求20所述的方法，其特征在于，所述第三指示信息包括所述数据单元的标识信息。
  22. 根据权利要求21所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备基于所述标识信息释放所述数据单元对应TB的HARQ进程。
  23. 根据权利要求20所述的方法，其特征在于，所述第三指示信息包括所述HARQ的HARQ进程号。
  24. 根据权利要求23所述的方法，其特征在于，所述方法还包括：所述第一通信设备基于所述HARQ进程号释放所述HARQ进程。
  25. 根据权利要求20-24任一中所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备接收来自所述第二通信设备的BSR，所述BSR包含所述第二通信设备缓冲区中待传的数据量；
    所述第一通信设备基于所述BSR确定所述第二通信设备需要传输的数据量。
  26. 一种通信装置，应用于第一通信设备，其特征在于，包括用于执行权利要求1-6或权利要求20-25中任一项所述的方法的模块。
  27. 一种通信装置，应用于第二通信设备，其特征在于，包括用于执行权利要求7-13或权利要求14-19中任一项所述的方法的模块。
  28. 一种通信装置，应用于第一通信设备，其特征在于，包括处理器，所述处理器与存储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求1-6中任一项所述的方法，或者执行如权利要求20-25中任一项所述的方法。
  29. 一种通信装置，应用于第二通信设备，其特征在于，包括处理器，所述处理器与存 储器耦合，所述存储器用于存储程序或指令，当所述程序或指令被所述处理器执行时，使得所述装置执行如权利要求7-13中任一项所述的方法，或者执行如权利要求14-19中任一项所述的方法。
  30. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序或指令，当所述计算机程序或指令被计算设备执行时，实现权利要求1-6中任一项所述的方法，或者实现权利要求7-13中任一项所述的方法，或者实现权利要求14-19中任一项所述的方法，或者实现权利要求20-25中任一项所述的方法。
  31. 一种计算机程序产品，所述计算机程序产品包括指令，其特征在于，当所述指令被计算机设备执行时，实现权利要求1-6中任一项所述的方法，或者实现权利要求7-13中任一项所述的方法，或者实现权利要求14-19中任一项所述的方法，或者实现权利要求20-25中任一项所述的方法。
  32. 一种通信系统，包括如下中一个或多个：如权利要求26-29任一项所述的通信装置。
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