WO2023217008A1 - 数据包序号同步方法、装置及通信设备 - Google Patents

数据包序号同步方法、装置及通信设备 Download PDF

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Publication number
WO2023217008A1
WO2023217008A1 PCT/CN2023/092425 CN2023092425W WO2023217008A1 WO 2023217008 A1 WO2023217008 A1 WO 2023217008A1 CN 2023092425 W CN2023092425 W CN 2023092425W WO 2023217008 A1 WO2023217008 A1 WO 2023217008A1
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WIPO (PCT)
Prior art keywords
data
data packet
sequence number
synchronization
transmission
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PCT/CN2023/092425
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English (en)
French (fr)
Inventor
袁雁南
杨晓东
迪 阿达姆布巴卡 金巴
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2023217008A1 publication Critical patent/WO2023217008A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/34—Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • 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
    • H04W28/10—Flow control between communication endpoints
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present application belongs to the field of wireless communication technology, and specifically relates to a data packet sequence number synchronization method, device and communication equipment.
  • the data between different user equipments are independent of each other.
  • Different quality of service (QoS) flows flows (flows) or data wireless bearers (Data) of the same UE Radio Bearer, DRB) data are also independent of each other.
  • QoS quality of service
  • Data data wireless bearers
  • DRB Radio Bearer
  • the data transmission channels of different UEs or the data packet sequence numbers on different DRBs of the same UE are independent of each other. That is, each Packet Data Convergence Protocol (PDCP) entity independently maintains the data packet sequence number on the DRB. Then, when the data of multiple UEs or the data of different transmission channels of one UE are correlated in transmission performance, how to transmit it is an issue that needs to be solved urgently.
  • PDCP Packet Data Convergence Protocol
  • Embodiments of the present application provide a data packet sequence number synchronization method, device and communication equipment, which can solve the problem of how to transmit data of multiple UEs or data of different transmission channels of one UE when there is correlation in transmission performance.
  • the first aspect provides a data packet sequence number synchronization method, which includes:
  • the first device sends data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to synchronize the data packet sequence numbers of multiple devices or multiple transmission channels of one device.
  • the multiple devices or multiple transmission channels of one device The transmitted data is associated data.
  • a data packet sequence number synchronization method which method includes:
  • the second device obtains data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of the second device.
  • the multiple devices or the second device The transmission data of multiple transmission channels of the device is associated data, and the multiple devices include the second device;
  • the second device numbers the data packets that require sequence number synchronization according to the data packet sequence number synchronization information.
  • a data packet sequence number synchronization device including:
  • the first sending module is used to send data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of one device.
  • the data packet sequence number synchronization information of the multiple devices or one device is The transmission data of multiple transmission channels is associated data.
  • a data packet sequence number synchronization device including:
  • the first acquisition module is used to obtain data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of a second device.
  • the multiple devices or the The transmission data of multiple transmission channels of the second device is associated data, and the multiple devices include the second device;
  • a data packet numbering module is used to number data packets that require sequence number synchronization based on the data packet sequence number synchronization information.
  • a communication device in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following is implemented: The steps of the data packet sequence number synchronization method described in the first aspect or the second aspect.
  • a communication device including a processor and a communication interface, wherein the communication interface is used to send data packet sequence number synchronization information, and the data packet sequence number synchronization information is used to implement multiple devices or one device.
  • the data packet sequence numbers of multiple transmission channels are synchronized, and the transmission data of multiple transmission channels of multiple devices or one device is associated data.
  • a communication device including a processor and a communication interface, wherein the processor is used to obtain data packet sequence number synchronization information, and the data packet sequence number synchronization information is used to implement multiple devices or the second
  • the data packet sequence numbers of the multiple transmission channels of the device are synchronized, and the transmission data of the multiple transmission channels of the multiple devices or the second device are associated data, and the multiple devices include the second device;
  • the processing The device is used to number the data packets that require sequence number synchronization according to the data packet sequence number synchronization information.
  • a communication system including: a first device and a second device.
  • the first device can be used to perform the steps of the data packet sequence number synchronization method as described in the first aspect.
  • the second device can be used To perform the steps of the data packet sequence number synchronization method described in the second aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the data packet sequence number synchronization method as described in the first aspect are implemented. , or implement the steps of the data packet sequence number synchronization method described in the second aspect.
  • a chip in a tenth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement data as described in the first aspect. Packet sequence number synchronization method, or implement the data packet sequence number synchronization method as described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the first aspect or the third aspect.
  • the device by sending the data packet sequence number synchronization information, the data packet sequence number synchronization information is received
  • the device can number and transmit the data packets that require sequence number synchronization based on the data packet sequence number synchronization information to meet the service quality of data transmission.
  • Figure 1 is a schematic diagram of the method of individually numbering the data packets of each transmission channel in the existing data transmission method
  • Figure 2 is a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 3 is one of the flow diagrams of the data packet sequence number synchronization method according to the embodiment of the present application.
  • Figure 4 is a schematic flowchart 2 of the data packet sequence number synchronization method according to the embodiment of the present application.
  • Figure 5 is one of the structural schematic diagrams of the data packet sequence number synchronization device according to the embodiment of the present application.
  • Figure 6 is the second structural schematic diagram of the data packet sequence number synchronization device according to the embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Figure 8 is a schematic diagram of the hardware structure of a terminal according to an embodiment of the present application.
  • Figure 9 is a schematic diagram of the hardware structure of a network side device according to an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 2 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • MID mobile Internet device
  • augmented reality augmented reality, AR
  • VR virtual reality
  • robots wearable devices
  • Vehicle user equipment VUE
  • pedestrian terminal pedestrian terminal
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices.
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit.
  • Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points or WiFi nodes, etc.
  • WLAN Wireless Local Area Network
  • the base station can be called Node B, Evolved Node B (eNB), access point, base transceiver station ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, sending and receiving point ( Transmission Reception Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the NR system is used The base station is introduced as an example, and the specific type of base station is not limited.
  • PDCP supports the following functions:
  • PDU PDCP Protocol Data Unit
  • split bear split bear
  • DAPS bear dual activation protocol stack bear
  • RLC supports the following functions:
  • RLC SDU discard processing is only applicable to Unacknowledged Mode (UM) and AM;
  • Protocol error detection only applicable to AM.
  • surround sound With the development of digitalization, a variety of wireless devices working together have appeared in daily life. For example, surround sound. Generally, surround sound source production and appreciation have strict environmental requirements, requiring multiple sound source collection devices and playback devices, and the location of each device has special requirements. Therefore, there are high latency and synchronization requirements for transmission between audio source collection equipment and surround sound source production equipment. Traditionally, wired connections are used to achieve delay consistency and synchronization requirements for data transmission by controlling the length of transmission cables. Then, when wireless air interfaces are used for transmission, solutions to ensure transmission delays and synchronization requirements between different devices need to be further studied.
  • Metaverse is a new Internet application and social form that integrates virtual and real technologies and is produced by integrating multiple new technologies. It provides an immersive experience based on extended reality technology. Generate a mirror of the real world based on digital twin technology, build an economic system based on blockchain technology, closely integrate the virtual world and the real world in the economic system, social system, and identity system, and allow each user to produce content and edit the world. From the perspective of human survival, it will expand from the current real world to a comprehensive environment of the virtual world and the real world.
  • sensing through wireless electromagnetic waves is a candidate technology for 5.5G and 6G that is widely concerned by the industry. According to current research progress, in order to meet the requirements of sensing accuracy, it is usually necessary to send and receive multiple times or transmit and receive multiple times. Finally, the sensing measurement results of multiple sensing devices (such as base stations and terminals) are jointly processed through algorithms to produce higher-precision sensing results.
  • the sensing service has high requirements on sensing delay or sensing result update frequency, on the one hand, it requires the sensing signals sent by multiple sensing devices to be sent with high synchronization on the air interface; on the other hand, it requires sensing on multiple sensing devices.
  • the measurement results are sent to a certain sensing function within a certain period of time (the sensing measurement results are processed to produce sensing results).
  • the sensing service requires continuous sensing within a certain period of time, and the sensing target is mobile, in order to meet the continuity of the sensing service in time and space, it will also involve the synchronization and transmission of sensing measurement results on multiple sensing devices.
  • Association processing requirements If the sensing measurement results on a certain sensing device do not meet the measurement requirements (such as the set sensing SNR requirements), then the sensing measurement results of other associated sensing devices at the same time do not need to be transmitted to the sensing function to save unnecessary time. Transmission overhead. In this scenario, how the wireless access network side ensures the transmission delay and synchronization between different terminals, and how to accurately control data packets on multiple wireless devices (such as scheduling transmission, discarding, etc.) requires further research. .
  • the uplink data of multiple UEs are correlated, and the uplink data transmission of each UE is required to have a low delay, and the delay synchronization between different UEs is less than a certain value.
  • data between different UEs are independent of each other, and data of different QoS flows or DRBs of the same UE are also independent of each other. Therefore, on the radio access network side, the data packet sequence numbers on the data transmission channels of different UEs or on different DRBs of the same UE are independent of each other. That is, each PDCP entity independently maintains the data packet sequence number on the DRB.
  • existing solutions can basically cope with transmission delay jitter through service design and, to a certain extent, caching and flow control at the service layer. Then, when the data of multiple UEs or the data of multiple transmission channels of one UE are correlated in terms of transmission performance, it is difficult for the existing solution to support the RAN side to identify the correlation, making it difficult to carry out data packet processing based on the data correlation. Level transmission control (such as scheduling transmission, discarding, etc.).
  • This embodiment of the present application provides a data packet sequence number synchronization method, including:
  • Step 31 The first device sends data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to synchronize the data packet sequence numbers of multiple devices or multiple transmission channels of one device.
  • the multiple devices or multiple transmission channels of one device The transmission data of each transmission channel is associated data.
  • the first device may be a wireless access network device (such as a base station) or a terminal.
  • a wireless access network device such as a base station
  • a terminal such as a terminal
  • the access network device may be a device that receives the associated data.
  • the first device when the first device is a terminal, it is suitable for a scenario in which multiple terminals cooperate to transmit data through side links.
  • the scenario is: a part of the data of the first device (terminal) is transmitted to the terminal through itself. base station, and another part of the data is sent to other terminals through side links, and then forwarded to the base station by other terminals.
  • the first device (terminal) can determine the data packet sequence number synchronization information, and send the data packet sequence number synchronization information to the base station and /or other terminal.
  • the first device can send the data packet sequence number synchronization information to the base station and other terminals, or the first device (terminal) can send the data packet sequence number synchronization information to the base station, and then the base station sends it to other terminals.
  • the first device When the first device is a terminal, the first device may be included in the plurality of devices, that is to say, the first device may be one of the plurality of devices that sends the associated data.
  • the above-mentioned one device may be the first device, that is to say, the first device may be the one device that uses multiple transmission channels to send the above-mentioned associated data.
  • the data packet sequence number may be a PDCP sequence number (Sequence Number, SN).
  • the first device sends the data packet sequence number synchronization information, so that the device that receives the data packet sequence number synchronization information can number and transmit the data packets that require sequence number synchronization based on the data packet sequence number synchronization information to meet the data requirements. Transmission quality of service.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identification that needs to be synchronized with the data packet sequence number.
  • the synchronization party identification is the identification of the device that transmits the associated data and/or the identification of the transmission channel; the transmission channel includes at least one item: data wireless bearer, logical channel , equipment measurement result transmission channel and data collection transmission channel;
  • the identifier of the transmission channel may be, for example, a QFI (QoS Flow Identity (Identity, ID), QoS Flow ID) or a DRB identifier or an identifier of a logical channel.
  • QFI QoS Flow Identity
  • ID QoS Flow ID
  • DRB DRB identifier
  • the equipment measurement results transmission channel is used to transmit measurement quantities
  • the data collection transmission channel is used to transmit collected data.
  • Measured quantities and collected data can be called sensory data.
  • the sensing data may not necessarily be transmitted through the user plane (DRB), but may be transmitted through the control plane (SRB) or the target plane (which can also be called the data plane).
  • the target surface is a protocol functional surface used to support at least one of data collection, data distribution, data security, data privacy, data analysis and data preprocessing.
  • the device measurement result transmission channel can be represented by the DRB identifier, or by the Signaling Radio Bear (SRB) identifier (such as SRB1, SRB2, SRB3, SRB4), and/or the measurement identifier (such as minimized drive test (Minimization of Drive Tests, MDT), Trace ID used by MDT), or the device measurement result transmission channel can also be a new type of channel dedicated to the data plane, represented by the identification of the transmission channel of the data plane.
  • SRB Signaling Radio Bear
  • MDT Minimum of Drive Tests
  • MDT Trace ID used by MDT
  • the data collection and transmission channel can be represented by the DRB identifier, or it can be represented by the SRB identifier and/or the data collection identifier (such as data subscription ID).
  • the data collection and transmission channel can also be a newly created channel dedicated to the data plane. Use the identification representation of the transmission channel on the data plane.
  • the indication information of the synchronization time reference source indicates that the global positioning system (Global Positioning System, GPS) time or air interface time is used as the synchronization time reference source, and the air interface time includes at least one of the following : Based on the frame number, subframe number, timeslot number and symbol of the air interface.
  • GPS Global Positioning System
  • the time of the data packet number can be indicated based on this time. For example, based on GPS timing indication, or based on air interface frame number, subframe number, timeslot number, symbol indication. For example, the time to start data packet numbering is the X-th frame, Y subframe, and Z time slot.
  • the time to start the data packet number can also be set based on the data arrival time difference between multiple terminals. For example, in a scenario where UE1 needs to send part of the data through UE2, UE1 starts the data packet The numbering time is T1 time, and the time when UE2 starts the data packet numbering is T1+T2 (where T2 is the time when data is transmitted from UE1 to UE2).
  • a default starting sequence number can be defined. For example, if there is no indication information of the starting sequence number of the data packet, the default starting sequence number is zero.
  • the length information of the sequence number is used to indicate the length of the sequence number.
  • the length of the sequence number has several potential options, and the length information of the sequence number indicates which length option is used. For example, 0 indicates a sequence number with a length of 12 bits, and 1 indicates a sequence number with a length of 18 bits.
  • the period of the data packet number includes a first period (which may also be called a long period), and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period (which can also be called a short period), and the second period is used to indicate the sequence number segmentation within the first period. time.
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the time offset compensation of the synchronization time reference source refers to the compensation of the timing advance (Timing Advance, TA) between the base station and the terminal.
  • TA Timing Advance
  • data arrival time deviation compensation can be applied to a scenario where multiple terminals collaboratively transmit data through side links.
  • This scenario refers to a scenario where part of the data of a terminal (such as UE1) is transmitted by itself. Sent to the base station, the other part of the data is first sent by the terminal to other terminals (such as UE2) through the side link, and then forwarded by the other terminals to the base station.
  • Data arrival time deviation refers to the time deviation of data arriving at the data sending end. For example, the time when the data arrives at UE1 is T1, and the transmission delay sent by UE1 to UE2 through the side link is T2, then the time when the data arrives at UE2 is T1+T2, and T2 is the data arrival time deviation.
  • Data arrival time deviation compensation means that by compensating the arrival time
  • the inter-departure deviation T2 enables accurate synchronization of multiple terminal data packets and avoids errors caused by arrival time deviations.
  • the X (such as 4) bits in the sequence number are used to count the data packets in the long period, that is, every time a long period passes, the corresponding X bit is increased by 1. .
  • the data packets are counted by Y bits.
  • the first device sending the data packet sequence number synchronization information includes: the first device passes the group Send data packet sequence number synchronization information by broadcasting or broadcasting.
  • sending packet sequence number synchronization information through multicast or broadcast can save transmission resources.
  • the first device can also send the data packet sequence number synchronization information to multiple devices one by one in a point-to-point manner.
  • the first device before the first device sends the data packet sequence number synchronization information, it also includes: association information of the first device according to the transmission data of the multiple devices or multiple transmission channels of one device. , determine the data packet sequence number synchronization information.
  • the first device determines the data packet sequence number synchronization information based on the associated information of the transmission data of the multiple devices or multiple transmission channels of one device, it further includes: The first device receives the association information.
  • the association information may be sent by the core network device.
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement. Result transmission channel and data collection transmission channel;
  • the synchronization party identifier can be the associated UE identifier. If there are multiple QoS flows (or DRBs) on each UE, then the UE identifier and QoS flow identifier (or DRB) are required. identifier) combined to identify as the synchronization party identifier.
  • the synchronization party identifiers with associated relationships include: UE1 QoS flow 1 and UE2 QoS flow 1.
  • the time information of data association includes at least one of the following: the maximum time of data association, the maximum jitter of the data association time window, etc.
  • the time information of data association is: the longest time window for data between multiple UEs is 100ms.
  • Association that is, the data between the synchronization party identifiers is related with a time length of 100ms
  • the maximum jitter of the data association time window caused by the jitter of data arrival time is 1ms.
  • the transmission start time of the associated data may be an absolute time or a relative time.
  • the performance indicator information associated with the data includes at least one of the following:
  • the maximum transmission delay difference of corresponding sequence number data packets between the synchronization party identifiers is less than 10ms.
  • the maximum transmission delay difference of the corresponding sequence number data packets between UE 1DRB1 and UE2DRB2 is less than 2ms.
  • the relationship between the number of data packet transmissions per 100ms for transmission channel A and transmission channel B is 100:10.
  • the ratio of the number of successfully transmitted data packets between UE 1UE 1DRB1 and UE2DRB2 is 10:1.
  • the maximum rate difference between synchronization party identifiers is 1Mbps.
  • the ratio of transmission rates per 100ms between transmission channel A and transmission channel B is 10:1.
  • the Nth packet identified by one or several synchronization parties is a critical data packet. If the transmission cannot be successful, other data packets associated with it do not need to be transmitted.
  • the performance index information associated with the data can also be any combination of the above 31)-35).
  • the performance index information associated with the data is that the ratio of the transmission rates of transmission channel A and transmission channel B every 100ms is 10 :1, and the maximum transmission delay difference between transmission channel A and transmission channel B does not exceed 10ms.
  • the first device after the first device sends the data packet sequence number synchronization information, it further includes: the first device performs performance monitoring on the data packets with sequence number synchronization based on the performance indicator information associated with the data, and Perform packet-level transmission control based on performance monitoring results.
  • the packet-level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the identifier of the synchronization party that needs to discard the data packet such as QFI or DRB identifier or logical channel identifier;
  • the sequence number of the data packet to be discarded can be an exact sequence number value or a certain sequence number indication
  • the performance indicator information of data association is: UE1 QoS flow 1 or UE2 QoS flow 2.
  • the key data packet within the data association time window is the packet numbered N.
  • other characteristics can be added, such as the length of [K , within the range of L] bytes, if the packet numbered N has not been successfully transmitted in the 1/2 data association time window, then other data packets in the data association time window can be discarded. If the first device (for example, the base station) The packet numbered N has not been successfully received at the time position of 1/2 of a certain data association time window.
  • the base station According to the PDCP SN of the received data packet, other data that need to be discarded in the data association time window are determined, including UE1 and/or Or the data packets associated with UE2 have not yet been transmitted over the air interface, and the base station has received data packets that have not been submitted to other network functions. If a short period of 10 ms is used as the requirement, if the configured data packet numbered N has not been received at 5 ms of the period, the base station will discard the data packet received in the short period and notify UE2 and/or Or UE1 discards the packets corresponding to the short period.
  • UE1 part of the data of UE1 is transmitted to the base station by itself, and the other part of the data is sent to UE2 through the side link, and UE2 forwards it to the base station.
  • the performance indicator information of data association is: UE1 QoS flow 1 or UE2 QoS flow 2.
  • the key data packet within the data association time window is the packet numbered N.
  • UE1 or UE2 finds that a certain data packet has timed out based on the timer information, it will discard it and send the sequence number of the data packet to be discarded to the network side (such as the base station). Based on the sequence number of the received data packet that needs to be discarded, the network side determines other data packets that need to be discarded within the data association time window, including data packets associated on UE2 or UE1 that have not yet been transmitted over the air interface, and data packets that have been received by the base station but have not yet been submitted. Data packets for other network functions.
  • the associated data is sensing data
  • the plurality of devices are sensing devices.
  • the synchronization party identification is QFI, DRB identification or logical channel identification
  • the sensing data may be transmitted through the user plane, or it may be transmitted through the control plane or target plane (data plane), and its synchronization party identification It can be represented by a DRB identifier, or it can be represented by a Signaling Radio Bear (SRB) identifier (such as SRB1, SRB2, SRB3, SRB4), and/or a measurement identifier (or data collection identifier), or it can be It is a newly created type of channel dedicated to the data plane, which is represented by the identification of the transmission channel of the data plane.
  • SRB Signaling Radio Bear
  • the first device when the associated data is sensing data, performs performance monitoring on the data packets whose serial numbers are synchronized according to the performance indicator information associated with the data, and executes the data packets according to the performance monitoring results.
  • Levels of transport control include:
  • the first device receives sensing measurement failure indication information sent by the first sensing device, where the sensing measurement failure indication information includes a first sequence number of the sensing data packet corresponding to the measurement failure;
  • the first device determines the second sequence number of the data packet associated with the first sequence number on the second sensing device based on the performance indicator information associated with the data;
  • the first device sends a discard instruction to the second sensing device, where the discard instruction is used to instruct to discard the data packet corresponding to the second sequence number.
  • the data packet level transmission control includes: sending a data transmission instruction, where the data transmission instruction is used to indicate priority transmission of the data packet with the indicated sequence number. For example, if the first device discovers that the absence of one or several data packets in a certain section of associated data packets may cause the transmission of other data packets to be invalid, it can send a data transmission instruction to instruct the data packets with the indicated sequence numbers to be transmitted first, so as to Meet associated performance requirements.
  • the data transmission instruction includes at least one of the following:
  • the serial number can be an exact serial number value or a certain sequence number indication.
  • the time-frequency resource information used for transmitting data packets with priority transmission may be air interface resources used for data packets with priority transmission. For example, information such as the frame, subframe, time slot, bandwidth part (BWP) and/or radio bearer (Radio Bearer, RB) of the resources used for transmission.
  • BWP bandwidth part
  • Radio Bearer Radio Bearer
  • resources can be scheduled through Radio Resource Control (Radio Resource Control, RRC) signaling or Downlink Control Information (Downlink Control Information, DCI) for data packet transmission of the indicated sequence number.
  • Radio Resource Control Radio Resource Control, RRC
  • DCI Downlink Control Information
  • parameter configuration information such as TBS and/or modulation and coding scheme (Modulation and coding scheme, MCS).
  • MCS Modulation and coding scheme
  • the priority transmission reason is associated data transmission.
  • This embodiment of the present application also provides a data packet sequence number synchronization method, including:
  • Step 41 The second device obtains data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to synchronize the data packet sequence numbers of multiple devices or multiple transmission channels of the second device.
  • the multiple devices or all The transmission data of the multiple transmission channels of the second device is associated data, and the multiple devices include the second device;
  • the second device is a terminal.
  • the second device may receive data packet sequence number synchronization information from the first device, or may determine the data packet sequence number synchronization information itself.
  • Step 42 The second device numbers the data packets that require sequence number synchronization according to the data packet sequence number synchronization information.
  • the second device can number the data packets that require sequence number synchronization, so that the device that receives the data packet can identify different terminals or different transmissions of the same terminal.
  • the data correlation between channels enables packet-level transmission control based on the data correlation, thus improving the service quality of data transmission.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the identification of the synchronization party that needs to synchronize the data packet sequence number is the identification of the device that transmits the associated data and/or the identification of the transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel , equipment measurement result transmission channel and data collection transmission channel;
  • the indication information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source.
  • the air interface time includes at least one of the following: air interface-based frame number, subframe number, slot number and symbol.
  • the period of the data packet number includes a first period, and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period, and the second period is used to indicate the sequence number division period within the first period.
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the time offset compensation of the synchronization time reference source refers to the compensation of the timing advance (TA) between the base station and the terminal.
  • data arrival time deviation compensation can be applied to a scenario where multiple terminals collaboratively transmit data through side links.
  • This scenario refers to a scenario where part of the data of a terminal (such as UE1) is transmitted by itself. Sent to the base station, the other part of the data is first sent by the terminal to other terminals (such as UE2) through the side link, and then forwarded by the other terminals to the base station.
  • Data arrival time deviation refers to the time deviation of data arriving at the data sending end. For example, the time when the data arrives at UE1 is T1, and the transmission delay sent by UE1 to UE2 through the side link is T2, then the time when the data arrives at UE2 is T1+T2, and T2 is the data arrival time deviation.
  • Data arrival time deviation compensation refers to compensating the arrival time deviation T2 to accurately synchronize multiple terminal data packets and avoid errors caused by arrival time deviation.
  • the second device can, according to the received data packet sequence number synchronization information, start the data packet numbering time from the indicated starting sequence number of the data packet, and adopt the indicated sequence number.
  • the length numbers the data packets on the synchronization party identifier that require data packet sequence number synchronization. If the data packet number has periodicity or sequence number segmentation, it can be numbered according to the period and sequence number segmentation instructions. For example, the data packet in the first 10ms is numbered by X (0001) and Y (00000000-11111111) bits; The second 10ms packet is numbered by X (0010) and Y (00000000-11111111) bits.
  • the second device before the second device obtains the data packet sequence number synchronization information, also includes: the second device sends transmission data of the multiple devices or multiple transmission channels of the second device.
  • the associated information is used to determine the data packet sequence number synchronization information.
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement. Result transmission channel and data collection transmission channel;
  • the performance indicator information associated with the data includes at least one of the following:
  • the maximum transmission delay difference between the synchronization party identifiers is less than 10ms.
  • the relationship between the number of data packet transmissions per 100ms for transmission channel A and transmission channel B is 100:10.
  • the maximum rate difference between synchronization party identifiers is 1Mbps.
  • the ratio of transmission rates per 100ms between transmission channel A and transmission channel B is 10:1.
  • the performance index information associated with the data can also be any combination of the above 31)-35).
  • the performance index information associated with the data is that the ratio of the transmission rates of transmission channel A and transmission channel B every 100ms is 10 :1, and the maximum transmission delay difference between transmission channel A and transmission channel B does not exceed 10ms.
  • the second device optionally, after the second device numbers the data packets that require sequence number synchronization according to the data packet sequence number synchronization information, the second device also includes: the second device numbers the data packets that require sequence number synchronization according to the performance indicator information associated with the data.
  • the data packets with sequence numbers synchronized are monitored for performance, and packet-level transmission control is performed based on the performance monitoring results.
  • This solution is usually used in scenarios where multiple terminals collaborate to transmit data through side links.
  • part of the data of the second device terminal
  • the other part of the data is first sent by the second device (sidelink).
  • the device sends it to other terminals through side links, and then the other terminals forward it to the base station.
  • the second device can perform performance monitoring on the data packets with synchronized sequence numbers, and perform packet-level transmission control based on the performance monitoring results.
  • the packet-level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the method further includes:
  • the second device receives a discard instruction, and the discard instruction includes at least one of the following: the synchronization party identifier of the data packet that needs to be discarded, the sequence number of the data packet that needs to be discarded, and the reason for the discard;
  • the second device discards the data packet that needs to be discarded according to the discard instruction.
  • the method further includes:
  • the second device receives a data transmission indication, where the data transmission indication is used to indicate priority transmission of the data packet with the indicated sequence number;
  • the second device preferentially transmits the data packet with the indicated sequence number according to the data transmission instruction
  • the data transmission instruction includes at least one of the following:
  • the time-frequency resource information used for transmitting data packets with priority transmission may be air interface resources used for data packets with priority transmission.
  • it can be the time-frequency resources used for uplink data indicated by the downlink control information (DCI) when the UE sends uplink data, such as certain resource blocks (resource blocks) of a certain subframe, or semi-static
  • DCI downlink control information
  • the time-frequency resources used for uplink data are configured through Radio Resource Control (RRC) signaling during scheduling.
  • RRC Radio Resource Control
  • MCS modulation and coding scheme
  • the following describes the data packet sequence number synchronization method in the embodiment of the present application based on specific application scenarios.
  • Embodiment 1 of this application a PDCP SN synchronization scheme
  • a synchronization method of PDCP SN between multiple DRBs is provided based on the 5th Generation (5G) communication protocol.
  • This method mainly solves how to ensure the associated transmission performance between different data on the wireless access network side. .
  • the relevant process is as follows:
  • Step 1 The network function of the wireless access network receives the associated information of the transmission data of multiple DRBs.
  • the associated information includes at least one of the following:
  • Synchronization party identifiers with associated relationships include: UE1 QoS flow 1 and UE2 QoS flow 1.
  • Time information of data association for example, the associated data is associated with 100ms as the data association time window.
  • Performance indicator information of data association is: UE1 QoS flow 1 or UE2 QoS flow 2.
  • the key data packet within the data association time window is the packet numbered N.
  • the length is in the range of [K, L] bytes, and if the packet numbered N has not been successfully transmitted within the 1/2 data association time window, then other data packets within the data association time window can be discarded.
  • Data transmission start time information for example, 13:00.
  • Step 2 The network function of the wireless access network sends data packet sequence number synchronization information to the sender of the associated data based on the received association information.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identification that needs to be synchronized with the data packet sequence number.
  • the synchronization party identification can be QFI (QoS flow ID) or DRB identification; if the associated information received by the network function of the wireless access network is based on the UE identification and QFI (QoS flow ID) ID) method to indicate the synchronization party, then when the wireless access network side maps the QoS flow to a DRB or logical channel, it needs to identify that the DRB or logical channel needs to be synchronized with the data packet sequence number.
  • Instruction information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source;
  • the time to start data packet numbering If there is precise timing between the UEs or networks that need to synchronize data packet sequence numbers, then the time for data packet numbering can be indicated based on this time. For example, based on GPS timing indication, or based on air interface frame number, subframe number, timeslot number, symbol indication. For example, the time to start data packet numbering is the X-th frame, Y subframe, and Z time slot.
  • Indication information of the starting sequence number of the data packet If the starting sequence number of the data packet is not indicated, a default starting sequence number can be defined. For example, if there is no indication information of the starting sequence number of the data packet, the default starting sequence number is zero.
  • the length information of the serial number is used to indicate the length of the serial number.
  • the length of the serial number has several potential options.
  • the length information of the serial number indicates which length option is used. For example, 0 indicates a 12-bit length PDCP SN, and 1 indicates a 18-bit length PDCP SN.
  • the period of the data packet number indicates the period of the data packet number, which period can be divided into one or more time periods. For example, a long period (such as 100ms) is used to indicate how often the packet sequence number is reset to the starting sequence number, and a short period (10ms) indicates the sequence number segmentation time within the long period.
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required. If time synchronization is based on air interface, indicates whether TA compensation is required. When indication is based on air interface time, there will be a time difference in the received downlink signal due to the distance between the UE and the base station. This can be compensated by TA to facilitate higher-precision time synchronization between UEs.
  • Segment information of sequence number If the sequence number needs to be used in segments, segmentation information indicating the sequence number is required. For example, when the period of the data packet number includes the aforementioned long period and short period, the X (such as 4) bits in the sequence number are used to count the data packets in the long period, that is, every time a long period passes, the corresponding X bit is increased by 1. . In each short period, the data packets are counted by Y bits.
  • the data packet sequence number synchronization information belongs to the public information of each associated device, it can be considered to send it through multicast or broadcast to save air interface resources.
  • Step 3 Based on the received data packet sequence number synchronization information, the sender of the associated data starts the data packet numbering time from the starting sequence number of the indicated data packet and uses the indicated sequence number length to perform the required Packet serial number synchronization synchronization party identification on the data packets are numbered. If the data packet number has periodicity or sequence number segmentation, it can be numbered according to the period and sequence number segmentation instructions. For example, the data packet in the first 10ms is numbered by X (0001) and Y (00000000-11111111) bits; The second 10ms packet is numbered by X (0010) and Y (00000000-11111111) bits.
  • Step 4 The radio access network side and/or the UE side performs performance monitoring on the data packets with synchronized sequence numbers based on the performance indicator information associated with the data, and performs packet-level transmission control based on the performance monitoring results.
  • the key data packet within the data association time window of the aforementioned association information (UE1 QoS flow 1 or UE2 QoS flow 2) is still the packet numbered N.
  • the length is in the range of [K, L] bytes , if the packet numbered N has not been successfully transmitted within the 1/2 data association time window, then other data packets within the data association time window can be discarded) as an example.
  • the network side has not successfully received the packet numbered N at the time position 1/2 of a certain data association time window, the network function of the wireless access network on the network side determines the data association time based on the PDCP SN of the received data packet.
  • Discard instructions include at least one of the following:
  • the synchronization party identifier of the data that needs to be discarded such as QFI or DRB identifier or logical channel identifier.
  • the sequence number of the data packet to be discarded can be an accurate sequence number value or a certain sequence number indication.
  • the embodiment of this application uses two QoS flows of two UEs as an example.
  • the method of the embodiment of this application can also be used in situations where there are more than two UEs or more than two QoS flows.
  • PDCP SN packets to meet association performance requirements. For example, resources are scheduled for data packet transmission of the indicated PDCP SN through RRC (Radio Resource Control) signaling or DCI (Downlink Control Information).
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • Data transfer instructions include at least one of the following:
  • the sequence number of the data packet for priority transmission can be an accurate sequence number value, or it can be a certain sequence number indication.
  • Time-frequency resource information used for priority transmission of data packets such as the frame, subframe, time slot, bandwidth part (BWP) and/or radio bearer (Radio Bearer, RB) of the resources used for transmission, etc. information.
  • Parameter configuration information used for priority transmission of data packet transmission including, for example, TBS and/or modulation and coding scheme (Modulation and coding scheme, MCS) and other information.
  • TBS Transmission and coding scheme
  • MCS Modulation and coding scheme
  • Embodiment 2 of the present application A sidelink data packet sequence number synchronization scheme
  • the embodiments of this application are oriented to the scenario where UE1 and other UEs collaborate to transmit data through side links, for example, when the Uu received signal reference power (RSRP) of UE1 is less than a certain threshold and/or the sidelink links of UE1 and UE2 When the RSRP of (such as PC5) is greater than a certain threshold, UE1 sends part of its own data to the base station, and sends the other part of the data to UE2, and UE2 forwards it to the base station.
  • RSRP Uu received signal reference power
  • Step 1 UE1 sends the associated information of the transmitted data to the network side.
  • the associated information includes at least one of the following:
  • Synchronization party identifiers with associated relationships include: UE1 QoS flow 1 and UE2 QoS flow 1.
  • Time information of data association for example, the associated data is associated with 100ms as the data association time window.
  • Performance indicator information of data association is: UE1 QoS flow 1 or UE2 QoS flow 2.
  • the key data packet within the data association time window is the packet numbered N.
  • the length is in the range of [K, L] bytes, and if the packet numbered N has not been successfully transmitted within the 1/2 data association time window, then other data packets within the data association time window can be discarded.
  • Data transmission start time information for example, 13:00.
  • the data arrival time difference between UE1 and other UEs, for example, the associated data on UE2 is 2ms later than the associated data whose sequence number is synchronized on UE1.
  • Step 2 The network function of the wireless access network sends data packet sequence number synchronization information to the sender of the associated data based on the received association information.
  • the above data packet sequence number synchronization information can also be determined by UE1, and Sent to the network side and/or other UEs, for example, UE1 first sends it to the network side, and the network side forwards it to other UEs, or UE1 sends it to the network side and other UEs.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identification that needs to be synchronized with the data packet sequence number.
  • the synchronization party identification can be QFI (QoS flow ID) or DRB identification; if the associated information received by the network function of the wireless access network is based on the UE identification and QFI (QoS flow ID) ID) method to indicate the synchronization party, then when the wireless access network side maps the QoS flow to a DRB or logical channel, it needs to identify that the DRB or logical channel needs to be synchronized with the data packet sequence number.
  • Instruction information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source;
  • the time to start data packet numbering can be set according to the data arrival time difference between UE1 and other UEs. For example, UE1 is T1 time, and UE2 is T1+T2 (where T2 is the data transmitted from UE1 to UE2 time). If there is precise timing between UEs or networks that need to synchronize data packet sequence numbers, the time of the data packet number can also be indicated based on this time. For example, based on GPS timing indication, or based on air interface frame number, subframe number, timeslot number, symbol indication. For example, the time to start data packet numbering is the X-th frame, Y subframe, and Z time slot.
  • Indication information of the starting sequence number of the data packet If the starting sequence number of the data packet is not indicated, a default starting sequence number can be defined. For example, if there is no indication information of the starting sequence number of the data packet, the default starting sequence number is zero.
  • the length information of the serial number is used to indicate the length of the serial number.
  • the length of the serial number has several potential options.
  • the length information of the serial number indicates which length option is used. For example, 0 indicates a 12-bit length PDCP SN, and 1 indicates a 18-bit length PDCP SN.
  • the period of the data packet number indicates the period of the data packet number, which period can be divided into one or more time periods. For example, a long period (such as 100ms) is used to indicate how often the packet sequence number is reset to the starting sequence number, and a short period (10ms) indicates the sequence number segmentation time within the long period.
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required. If time synchronization is based on air interface, indicates whether TA compensation is required. When indication is based on air interface time, there will be a time difference in the received downlink signal due to the distance between the UE and the base station. This can be compensated by TA to facilitate higher-precision time synchronization between UEs.
  • Segment information of sequence number If the sequence number needs to be used in segments, segmentation information indicating the sequence number is required. For example, when the period of the data packet number includes the aforementioned long period and short period, the X (such as 4) bits in the sequence number are used to count the data packets in the long period, that is, every time a long period passes, the corresponding X bit is increased by 1. . In each short period, the data packets are counted by Y bits.
  • the network side can consider sending it through multicast or broadcast to save air interface resources.
  • Step 3 Based on the received data packet sequence number synchronization information, the sender of the associated data starts the data packet numbering time from the starting sequence number of the indicated data packet and uses the indicated sequence number length to perform the required Packet serial number synchronization synchronization party identification on the data packets are numbered.
  • the data packet number has periodicity or sequence number segmentation, it can be numbered according to the period and sequence number segmentation instructions. For example, the data packet in the first 10ms is numbered by X (0001) and Y (00000000-11111111) bits; The second 10ms packet is numbered by X (0010) and Y (00000000-11111111) bits.
  • Step 4 The radio access network side and/or the UE side performs performance monitoring on the data packets with synchronized sequence numbers based on the performance indicator information associated with the data, and performs packet-level transmission control based on the performance monitoring results.
  • the key data packet within the data association time window of the aforementioned association information (UE1 QoS flow 1 or UE2 QoS flow 2) is still the packet numbered N.
  • other characteristics can be added, such as the length is in the range of [K, L] bytes , if the packet numbered N has not been successfully transmitted within the 1/2 data association time window, then other data packets within the data association time window can be discarded) as an example. If UE1 or UE2 finds that a data packet has timed out based on the timer information, it discards it and sends the SN of the discarded data packet to the network side.
  • the network function of the wireless access network on the network side determines other data that needs to be discarded within the associated time window based on the received discarded SN, including data packets associated on UE2 or UE1 that have not yet been transmitted over the air interface, and those that have been received by the base station. to packets that have not yet been delivered to other network functions.
  • the received data packet SN indicates that the data packet of the short time period is discarded (that is, the data packet in which the X part in the SN is equal to 0010), and a discard instruction is sent to UE2, indicating that the packet in the aforementioned SN with the corresponding value of X in the short period is discarded.
  • Embodiment 3 of this application a transmission scheme for sensing measurement results
  • the sensing measurement results of multiple sensing devices are jointly processed through algorithms to produce higher-precision sensors. Perceive the results.
  • the sensing service has high requirements on sensing delay or sensing result update frequency, on the one hand, it requires the sensing signals sent by multiple sensing devices to be sent with high synchronization on the air interface; on the other hand, it requires sensing on multiple sensing devices.
  • the measurement results are sent to a certain sensing function within a certain period of time (the sensing measurement results are processed to produce sensing results).
  • the sensing service requires continuous sensing within a certain period of time, and the sensing target is mobile, in order to meet the continuity of the sensing service in time and space, it will also involve the synchronization and transmission of sensing measurement results on multiple sensing devices. Association processing requirements. Moreover, in order to meet the requirements of a certain accuracy of perception results, generally only the perception measurement results that meet a certain quality requirement have the value of being transmitted to the perception function and processed. If the quality of the perception measurement results is poor, they cannot be used even if they are transmitted to the perception function. Or lead to poor accuracy of perception results.
  • the sensing measurement results on a certain sensing device do not meet the measurement requirements (such as the set sensing SNR requirements), then the sensing measurement results of other associated sensing devices at the same time do not need to be transmitted to the sensing function to save unnecessary time. necessary transmission overhead.
  • the embodiments of the present application are oriented to the synchronization numbering, transmission and discarding methods of sensing measurement quantities between multiple sensing signal receiving devices. case is explained.
  • the following takes an example in which a base station sends a sensing signal and multiple UEs receive the sensing signal and perform measurements. This solution can also be used when multiple UEs and base stations receive sensing signals and measurements, or when multiple base stations receive sensing signals and measurements.
  • Step 1 The sensing function (a network function responsible for receiving sensing requests and providing sensing results, which can be called another name, sensing function, SF) receives the sensing request.
  • the sensing request includes but is not limited to one or more of the following information:
  • the sensing service type can be defined according to the bandwidth and time domain continuous delay requirements of the sensing signal.
  • Type I is a large-bandwidth continuous sensing service (providing multiple sensing results based on specified time or geographical location, etc.);
  • Type II is a large-bandwidth one-time sensing service (providing one-time sensing results);
  • Type III is a small-bandwidth continuous sensing service;
  • Type IV is a small-bandwidth one-time sensing service.
  • the sensing service type can also be defined based on the sensing service quality type/level (QoS class), such as Type I: Best Effort sensing service. If the sensing results cannot meet the QoS indicator requirements, the sensing results still need to be fed back, but An indication is required that the requested QoS is not being met. If the sensing result is not obtained, the reason for the failure will be fed back; Type II: Multiple QoS (Multiple QoS) sensing service, which includes QoS indicator requirements corresponding to multiple QoS levels. If the sensing result does not meet the most stringent QoS indicator requirements, SF Initiate the sensing process again and try to meet lower QoS indicator requirements until one of the QoS indicator requirements is met.
  • QoS class the sensing service quality type/level
  • Type III Guarantee (Assured) sensing service is the most stringent sensing QoS type. If the sensing result cannot meet the QoS indicator requirements, the positioning result will not be fed back, but only the failure reason will be fed back.
  • the sensing service type can also be defined based on the sensing physical range and real-time requirements. For example, Type I: Large sensing range and high real-time requirements (Delay Critical LSS); Type II: Large sensing range and low real-time requirements (LSS); Type III: Small sensing range and low real-time requirements (Delay Critical SSS); Type IV: Small sensing range and low real-time requirements (SSS).
  • Delay Critical LSS Large sensing range and high real-time requirements
  • LSS Large sensing range and low real-time requirements
  • Type III Small sensing range and low real-time requirements
  • SSS Small sensing range and low real-time requirements
  • Sensing targets can be divided into per object (sensing services with a certain sensing target as the sensing object, such as UE as the target) and per area (sensing services with a certain geographical area as the sensing object, such as an airport area).
  • Perception business service quality requirements including but not limited to: at least one of sensing accuracy, sensing resolution, sensing error, sensing range, sensing delay, detection probability and false alarm probability; sensing resolution varies according to sensing services. It can be distance resolution, imaging resolution, moving speed resolution, angle resolution, breathing resolution, frequency resolution or rainfall resolution; the perception error can be based on different perception services and can meet a certain confidence level. Distance error, imaging error, movement speed error, breath count error, recognition accuracy and/or rainfall error.
  • Perceived QoS information that is, the perceived signal quality requirements mentioned above in this application. If the request information received by the SF does not include the perceived QoS information described in this application, then the SF generates the perceived QoS information described in this application based on information such as perceived service quality.
  • Step 2 SF is responsible for the control of perceived quality of service (QoS), that is, oriented to the perceived service quality requirements, the perception-related The joint points are controlled to meet the QoS requirements of the sensing service.
  • QoS perceived quality of service
  • Step 3 The SF and/or the base station determine the sensing link or sensing method.
  • the sensing method can include the base station transmitting and receiving, the UE transmitting and receiving by the base station, the base station transmitting and receiving spontaneously, inter-UE transmitting and receiving, inter-base station transmitting and receiving or UE spontaneously receiving.
  • the SF and/or the base station determine the sensing signal sending or receiving node.
  • the sensing signal sending or receiving node in the mobile communication system includes network equipment (such as a base station) and UE (such as a mobile phone).
  • the SF determines that the sensing mode is the base station sending and receiving the UE, selects base station A as the sensing signal sending node, and the SF and the base station jointly determine UE1 and UE2 as the sensing signal receiving nodes.
  • Step 4 The SF and/or the base station determine the sensing signal.
  • Potential sensing signals include reference signals and data signals, where the reference signal can be a communication reference signal or a sensing-specific reference signal.
  • Step 5 The SF and/or the base station determine the time-frequency resources used for sensing.
  • Potential sensing resources include unused time-frequency resources in communication (such as guard bands), time-frequency resources used in shared communication (such as reference signals or data signal), sensing dedicated time-frequency resources. It is further necessary to determine the configuration of the sensing signal. Potential configurations include time, frequency and airspace resource information of the sensing signal. If it is determined that the node sensing time-frequency resources is not the sending node of the sensing signal, then the sensing signal configuration is sent to the sensing signal sending node.
  • Step 6 The SF and/or the base station determine the configuration of the sensing measurement quantity.
  • Potential configurations include the sensing signal indication to be measured, the number or time of the sensing signal to be measured, the reporting indication of the measurement results, and the sensing measurement constraint conditions (referring to which conditions must be met).
  • Perception measurements can be performed under one or more constraints.
  • Potential constraints include received signal signal-to-noise ratio/signal-to-dry ratio, signal-to-clutter ratio, ratio of target sensing signal component to other sensing signal components, target sensing delay The ratio of the channel response amplitude value in the interval to the amplitude values in other delay intervals.
  • the received signal signal-to-noise ratio/signal-to-dryness ratio is not less than 10dB.
  • Step 7 The SF and/or the base station determines and configures the transmission channel for reporting sensing measurement results, including establishing, modifying, or releasing the transmission channel.
  • Step 8 The SF sends the associated information for the transmission of the sensing measurement results to the base station.
  • the associated information includes at least one of the following:
  • Synchronization party identifier with an associated relationship. For example, if user plane channel transmission is used, it can be UE1 QoS flow 1, UE2 QoS flow 1. If control plane channel or other new protocol plane (such as data plane) is used, it can be UE 1 measurement ID (such as Minimization of Drive Tests, Trace ID used by MDT) or data collection ID 1 (such as subscription ID), UE 2 measurement ID or data collection ID 1.
  • UE 1 measurement ID such as Minimization of Drive Tests, Trace ID used by MDT
  • data collection ID 1 such as subscription ID
  • Time information of data association for example, the associated data is associated with 10ms as the data association time window.
  • Data association performance indicator information for example, if the sensing measurement of UE1 QoS flow 1/measurement ID or data collection ID 1 fails in a certain data association time window, then UE2 QoS flow 2/measurement ID or data collection ID 1 corresponds to Perceptual measurements also do not need to be transmitted.
  • Data transmission start time information such as the X frame, Y subframe and Z time slot.
  • Step 8 Based on the received association information, the base station sends data packet sequence number synchronization information to the sender of the associated data, that is, the data sequence number information of the sensing measurement quantity, which can also be called sensing measurement time stamp information (usually sensing measurement results When reporting, in addition to the measurement results themselves, the time, geographical location, etc. need to be reported as tag information so that SF can better use the sensing measurement results).
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identification that needs to be synchronized with the data packet sequence number, such as QFI or DRB identification or measurement ID or data collection ID. If the association information received by the network function of the wireless access network is indicated by the above UE identification and QoS flow identification, then when the wireless network side maps the QoS flow to the DRB or logical channel or measurement ID or data collection ID, it needs to identify The DRB or logical channel or measurement ID or data collection ID needs to be synchronized with the data packet sequence number.
  • Instruction information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source;
  • the time to start data packet numbering can reuse the time of perception measurement.
  • UE1 performs perception measurement on the perception signal M of the X frame, Y subframe and Z time slot.
  • UE2 performs sensing measurements on the sensing signal M of the X frame, Y subframe and Z time slot. Then the Xth frame, Y subframe and Z time slot can be reused as the time to start the packet numbering.
  • Indication information of the starting sequence number of the data packet If the starting sequence number of the data packet is not indicated, a default starting sequence number can be defined. For example, if there is no indication information of the starting sequence number of the data packet, the default starting sequence number is zero.
  • the length information of the serial number is used to indicate the length of the serial number.
  • the length of the serial number has several potential options.
  • the length information of the serial number indicates which length option is used. For example, 0 indicates a 12-bit length PDCP SN, and 1 indicates a 18-bit length PDCP SN.
  • the period of the data packet number indicates the period of the data packet number, which period can be divided into one or more time periods. For example, a long period (such as 100ms) is used to indicate how often the packet sequence number is reset to the starting sequence number, and a short period (10ms) indicates the sequence number segmentation time within the long period.
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required. If time synchronization is based on air interface, indicates whether TA compensation is required. When indication is based on air interface time, there will be a time difference in the received downlink signal due to the distance between the UE and the base station. This can be compensated by TA to facilitate higher-precision time synchronization between UEs.
  • Segment information of sequence number If the sequence number needs to be used in segments, segmentation information indicating the sequence number is required. For example, when the period of the data packet number includes the aforementioned long period and short period, the X (such as 4) bits in the sequence number are used to count the data packets in the long period, that is, every time a long period passes, the corresponding X bit is increased by 1. . In each short period, the data packets are counted by Y bits.
  • the data packet sequence number synchronization information belongs to the public information of each associated device, it can be considered to send it through multicast or broadcast to save air interface resources.
  • Step 9 If the perception measurement equipment is based on the configured perception measurement requirements (such as the aforementioned signal-to-noise ratio/signal-to-drying ratio, signal-to-noise ratio, the ratio of the target sensing signal component to other sensing signal components, the channel response of the target sensing delay interval The ratio of the amplitude value to the amplitude value of other delay intervals.
  • the configured perception measurement requirements such as the aforementioned signal-to-noise ratio/signal-to-drying ratio, signal-to-noise ratio, the ratio of the target sensing signal component to other sensing signal components, the channel response of the target sensing delay interval The ratio of the amplitude value to the amplitude value of other delay intervals.
  • the received signal signal-to-noise ratio/signal-drying ratio is not less than 10dB, and the ratio of the channel response amplitude value of the target perception delay interval to the amplitude value of other delay intervals is not less than - 5dB) determines that the sensing measurement fails, then according to the aforementioned sensing measurement result data packet number information, send the sensing data packet sequence number signal corresponding to the measurement failure. information to the network side.
  • Step 10 The network side (such as the base station) determines based on the associated performance indication information, such as the aforementioned associated information: If the sensing measurement of UE1 QoS flow 1/measurement ID or data collection ID 1 fails in a certain time window, then UE2 QoS flow 2/ The sensing measurement results corresponding to the measurement ID or data collection ID 1 do not need to be transmitted.
  • the network side determines the data packet sequence numbers associated with other sensing measurement devices based on the received data packet sequence numbers, and sends the data packet sequence number instructions to the corresponding sensing devices. The measuring device indicates that the packet is discarded.
  • This embodiment takes two UEs as an example, and this solution can also be used in situations with more than two UEs.
  • the network side can send Data transmission instructions indicate that data with the indicated packet sequence number should be transmitted first to meet correlation performance requirements.
  • the data packet sequence number synchronization method in the above embodiments of the present application is suitable for communication systems such as 5G and 6G.
  • the execution subject may be a data packet sequence number synchronization device.
  • the data packet sequence number synchronization device performing the data packet sequence number synchronization method is used as an example to illustrate the data packet sequence number synchronization device provided by the embodiment of the present application.
  • This embodiment of the present application also provides a data packet sequence number synchronization device 50, which includes:
  • the first sending module 51 is used to send data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of one device.
  • the multiple devices or one device The transmission data of multiple transmission channels is associated data.
  • the device that receives the data packet sequence number synchronization information can number and transmit the data packets that require sequence number synchronization according to the data packet sequence number synchronization information, thereby improving the data transmission service. quality.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identifier that needs to be synchronized with the data packet sequence number.
  • the synchronization party identifier is the device identifier that transmits the associated data and/or the identifier of the transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, device Measurement result transmission channel and data collection transmission channel;
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the indication information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source, and the air interface time includes at least one of the following: an air interface-based frame number, a subframe number, a timeslot number, and symbol.
  • the period of the data packet number includes a first period, and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period, and the second period is used to indicate the sequence number division period within the first period.
  • the first sending module 51 is configured to send data packet sequence number synchronization information through multicast or broadcast.
  • the data packet sequence number synchronization device 50 also includes:
  • a determining module configured to determine the data packet sequence number synchronization information based on the associated information of the transmission data of the multiple devices or multiple transmission channels of one device.
  • the data packet sequence number synchronization device 50 also includes:
  • a receiving module configured to receive the associated information.
  • the receiving module is configured to receive the association information sent by the core network device.
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement result transmission. Channels and data collection transmission channels;
  • the data arrival time difference between the multiple devices or multiple transmission channels of one device is the data arrival time difference between the multiple devices or multiple transmission channels of one device.
  • the performance indicator information associated with the data includes at least one of the following: the maximum transmission delay difference between the synchronization party identifiers, the relationship between the number of data packet transmissions between the synchronization party identifiers, the relationship between the synchronization party identifiers, The relationship between the maximum rate difference between party identifiers, the transmission rate ratio between the synchronization party identifiers, and the importance of data packets between the synchronization party identifiers.
  • the data packet sequence number synchronization device 50 also includes:
  • a processing module configured to perform performance monitoring on data packets with serial number synchronization based on the performance indicator information associated with the data, and perform data packet level transmission control based on performance monitoring results.
  • the data packet level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the associated data is sensing data
  • the plurality of devices are sensing devices
  • the processing module is configured to receive sensing measurement failure indication information sent by the first sensing device, where the sensing measurement failure indication information includes The first sequence number of the sensing data packet corresponding to the measurement failure; determining the second sequence number of the data packet associated with the first sequence number on the second sensing device according to the performance indicator information associated with the data; and reporting the data packet to the second sensing device.
  • the device sends a discard instruction, so The discard instruction is used to instruct to discard the data packet corresponding to the second sequence number.
  • the packet-level transmission control includes: sending a data transmission indication, where the data transmission indication is used to indicate priority transmission of the data packet with the indicated sequence number.
  • the data transmission instruction includes at least one of the following:
  • the synchronization party identifier that prioritizes transmission of data packets
  • Time-frequency resource information used for priority transmission of data packets
  • the data packet sequence number synchronization device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the data packet sequence number synchronization device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 3 and achieve the same technical effect. To avoid duplication, it will not be described again here.
  • This embodiment of the present application also provides a data packet sequence number synchronization device 60, which includes:
  • the first acquisition module 61 is used to obtain data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of a second device.
  • the multiple devices or all The transmission data of the multiple transmission channels of the second device is associated data, and the multiple devices include the second device;
  • the data packet numbering module 62 is used to number the data packets that require sequence number synchronization according to the data packet sequence number synchronization information.
  • the data packets that require sequence number synchronization can be numbered, so that the device receiving the data packet can identify different terminals or different transmission channels of the same terminal.
  • the data association relationship enables packet-level transmission control based on the data association relationship, thereby improving the service quality of data transmission.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identifier that needs to be synchronized with the data packet sequence number.
  • the synchronization party identifier is the device identifier that transmits the associated data and/or the identifier of the transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, device Measurement result transmission channel and data collection transmission channel;
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the indication information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source, and the air interface time includes at least one of the following: an air interface-based frame number, a subframe number, a timeslot number, and symbol.
  • the period of the data packet number includes a first period, and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period, and the second period is used to indicate the sequence number division period within the first period.
  • the data packet sequence number synchronization device 60 also includes:
  • the first sending module is configured to send association information of transmission data of multiple transmission channels of the multiple devices or the second device, where the association information is used to determine the data packet sequence number synchronization information.
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement result transmission. Channels and data collection transmission channels;
  • the data arrival time difference between the multiple transmission channels of the multiple devices or the second device is the data arrival time difference between the multiple transmission channels of the multiple devices or the second device.
  • the performance indicator information associated with the data includes at least one of the following: the maximum transmission delay difference between the synchronization party identifiers, the relationship between the number of data packet transmissions between the synchronization party identifiers, the relationship between the synchronization party identifiers, The relationship between the maximum rate difference between party identifiers, the transmission rate ratio between the synchronization party identifiers, and the importance of data packets between the synchronization party identifiers.
  • the data packet sequence number synchronization device 60 also includes:
  • the processing module is used to perform performance monitoring of data packets with serial number synchronization based on the performance indicator information associated with the data, and to perform packet-level transmission control based on the performance monitoring results.
  • the data packet level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the data packet sequence number synchronization device 60 also includes:
  • the first receiving module is configured to receive a discard instruction, where the discard instruction includes at least one of the following: the synchronization party identifier of the data packet that needs to be discarded, the sequence number of the data packet that needs to be discarded, and the reason for the discard;
  • a discarding module is configured to discard data packets that need to be discarded according to the discarding instruction.
  • the data packet sequence number synchronization device 60 also includes:
  • the second receiving module is configured to receive a data transmission indication, where the data transmission indication is used to indicate priority transmission of the data packet with the indicated sequence number;
  • the second sending module is configured to give priority to transmitting the data packet with the indicated sequence number according to the data transmission instruction
  • the data transmission instruction includes at least one of the following:
  • the synchronization party identifier that prioritizes transmission of data packets
  • Time-frequency resource information used for priority transmission of data packets
  • the data packet sequence number synchronization device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the data packet sequence number synchronization device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 4 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the embodiment of the present application also provides a communication device 70, including a processor 71 and a memory 72.
  • the memory 72 stores programs or instructions that can be run on the processor 71.
  • the program or instructions are When the processor 71 executes, each step of the above embodiment of the data packet sequence number synchronization method is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be described here.
  • Embodiments of the present application also provide a terminal, including a processor and a communication interface.
  • the communication interface is used to send data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to implement multiple transmissions of multiple devices or one device.
  • the data packet sequence numbers of the channels are synchronized, and the transmission data of the multiple transmission channels of the multiple devices or one device is associated data; or, the processor is used to obtain data packet sequence number synchronization information, and the data packet sequence number synchronization information is Used to synchronize data packet sequence numbers of multiple transmission channels of multiple devices or a second device, and the transmission data of multiple transmission channels of the multiple devices or the second device are associated data, and the multiple devices include
  • the second device numbers the data packets that require sequence number synchronization according to the data packet sequence number synchronization information.
  • FIG. 8 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 80 includes but is not limited to: a radio frequency unit 81, a network module 82, an audio output unit 83, an input unit 84, a sensor 85, a display unit 86, a user input unit 87, an interface unit 88, a memory 89, a processor 810, etc. At least some parts.
  • the terminal 80 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 810 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 84 may include a graphics processing unit (GPU) 841 and a microphone 842.
  • the graphics processor 841 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • display sheet The element 86 may include a display panel 861, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 87 includes at least one of a touch panel 871 and other input devices 872 .
  • Touch panel 871 is also called a touch screen.
  • the touch panel 871 may include two parts: a touch detection device and a touch controller.
  • Other input devices 872 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 81 after receiving downlink data from the network side device, the radio frequency unit 81 can transmit it to the processor 810 for processing; in addition, the radio frequency unit 81 can send uplink data to the network side device.
  • the radio frequency unit 81 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 89 may be used to store software programs or instructions as well as various data.
  • the memory 89 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data.
  • the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 89 may include volatile memory or nonvolatile memory, or memory 89 may include both volatile and nonvolatile memory.
  • 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), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), 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, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 810.
  • the radio frequency unit 81 is used to send data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to synchronize the data packet sequence numbers of multiple devices or multiple transmission channels of one device.
  • the multiple The transmission data of a device or multiple transmission channels of a device is associated data.
  • the device that receives the data packet sequence number synchronization information can number the data packets that require sequence number synchronization according to the data packet sequence number synchronization information, thereby improving the service quality of data transmission.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identifier that needs to synchronize the data packet sequence number is the device identifier that transmits the associated data and/or the identifier of the transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, equipment Prepare measurement result transmission channel and data collection transmission channel;
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the indication information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time reference source, and the air interface time includes at least one of the following: an air interface-based frame number, a subframe number, a timeslot number, and symbol.
  • the period of the data packet number includes a first period, and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period, and the second period is used to indicate the sequence number division period within the first period.
  • the radio frequency unit 81 is configured to send data packet sequence number synchronization information through multicast or broadcast.
  • the processor 810 is configured to determine the data packet sequence number synchronization information based on the associated information of the transmission data of the multiple devices or multiple transmission channels of one device.
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement result transmission. Channels and data collection transmission channels;
  • the data arrival time difference between the multiple devices or multiple transmission channels of one device is the data arrival time difference between the multiple devices or multiple transmission channels of one device.
  • the performance indicator information associated with the data includes at least one of the following: the maximum transmission delay difference between the synchronization party identifiers, the relationship between the number of data packet transmissions between the synchronization party identifiers, the relationship between the synchronization party identifiers, The relationship between the maximum rate difference between party identifiers, the transmission rate ratio between the synchronization party identifiers, and the importance of data packets between the synchronization party identifiers.
  • the processor 810 is configured to perform performance monitoring on data packets whose sequence numbers are synchronized according to the performance indicator information associated with the data, and to perform packet-level transmission control according to the performance monitoring results.
  • the data packet level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the associated data is sensing data
  • the plurality of devices are sensing devices
  • the processing module is configured to receive sensing measurement failure indication information sent by the first sensing device, where the sensing measurement failure indication information includes The first sequence number of the sensing data packet corresponding to the measurement failure; determining the second sequence number of the data packet associated with the first sequence number on the second sensing device according to the performance indicator information associated with the data; and reporting the data packet to the second sensing device.
  • the device sends a discard instruction, where the discard instruction is used to instruct to discard the data packet corresponding to the second sequence number.
  • the packet-level transmission control includes: sending a data transmission indication, where the data transmission indication is used to indicate priority transmission of the data packet with the indicated sequence number.
  • the data transmission instruction includes at least one of the following:
  • the synchronization party identifier that prioritizes transmission of data packets
  • Time-frequency resource information used for priority transmission of data packets
  • the processor 810 is used to obtain data packet sequence number synchronization information, and the data packet sequence number synchronization information is used to realize data packet sequence number synchronization of multiple devices or multiple transmission channels of a second device,
  • the transmission data of the multiple transmission channels of the multiple devices or the second device is associated data, and the multiple devices include the second device; according to the data packet sequence number synchronization information, the data that requires sequence number synchronization is Packages are numbered.
  • the data packets that require sequence number synchronization can be numbered, so that the device receiving the data packet can identify different terminals or different transmission channels of the same terminal.
  • the data association relationship enables packet-level transmission control based on the data association relationship, thereby improving the service quality of data transmission.
  • the data packet sequence number synchronization information includes at least one of the following:
  • the synchronization party identifier that needs to be synchronized with the data packet sequence number.
  • the synchronization party identifier is the device identifier that transmits the associated data and/or the identifier of the transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, device Measurement result transmission channel and data collection transmission channel;
  • Compensation indication information used to indicate whether time deviation compensation of the synchronization time reference source and/or data arrival time deviation compensation is required
  • the indication information of the synchronization time reference source indicates that GPS time or air interface time is used as the synchronization time.
  • the air interface time includes at least one of the following: a frame number, a subframe number, a timeslot number, and a symbol based on the air interface.
  • the period of the data packet number includes a first period, and the first period is used to indicate the time when the data packet sequence number is reset to the starting sequence number.
  • the period of the data packet number also includes a second period, and the second period is used to indicate the sequence number division period within the first period.
  • the radio frequency unit 81 is configured to send association information of transmission data of multiple transmission channels of the multiple devices or the second device, and the association information is used to determine the data packet sequence number synchronization information. .
  • the associated information includes at least one of the following:
  • a synchronization party identifier with an associated relationship is a device identifier that transmits the associated data and/or an identifier of a transmission channel.
  • the transmission channel includes at least one item: data wireless bearer, logical channel, and device measurement result transmission. Channels and data collection transmission channels;
  • the data arrival time difference between the multiple transmission channels of the multiple devices or the second device is the data arrival time difference between the multiple transmission channels of the multiple devices or the second device.
  • the performance indicator information associated with the data includes at least one of the following: the maximum transmission delay difference between the synchronization party identifiers, the relationship between the number of data packet transmissions between the synchronization party identifiers, the relationship between the synchronization party identifiers, The relationship between the maximum rate difference between party identifiers, the transmission rate ratio between the synchronization party identifiers, and the importance of data packets between the synchronization party identifiers.
  • the processor 810 is configured to perform performance monitoring on data packets with synchronized sequence numbers based on data-associated performance indicator information, and perform data packet-level transmission control based on performance monitoring results.
  • the data packet level transmission control includes: sending a discard indication, where the discard indication includes at least one of the following:
  • the radio frequency unit 81 is configured to receive a discard instruction, and the discard instruction includes at least one of the following: the synchronization party identifier of the data packet that needs to be discarded, the sequence number of the data packet that needs to be discarded, and the reason for the discard;
  • a discarding module is configured to discard data packets that need to be discarded according to the discarding instruction.
  • the radio frequency unit 81 is configured to receive a data transmission instruction, and the data transmission instruction is used to indicate that the data packet with the indicated sequence number is preferentially transmitted; according to the data transmission instruction, the data with the indicated sequence number is preferentially transmitted. Bag,
  • the data transmission instruction includes at least one of the following:
  • the synchronization party identifier that prioritizes transmission of data packets
  • Time-frequency resource information used for priority transmission of data packets
  • Embodiments of the present application also provide a network side device, including a processor and a communication interface.
  • the communication interface is used to send data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to implement multiple transmissions of multiple devices or one device.
  • the data packet sequence numbers of the channels are synchronized, and the transmission data of the multiple transmission channels of the multiple devices or one device is associated data.
  • This network-side device embodiment corresponds to the above-mentioned data packet sequence number synchronization method embodiment shown in Figure 3.
  • Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effects.
  • Embodiments of the present application also provide a network side device, including a processor and a communication interface.
  • the processor is used to obtain data packet sequence number synchronization information.
  • the data packet sequence number synchronization information is used to implement multiple transmissions of multiple devices or second devices.
  • the data packet sequence numbers of the channels are synchronized, and the transmission data of the multiple transmission channels of the multiple devices or the second device are associated data, and the multiple devices include the second device; synchronizing information according to the data packet sequence numbers , number the data packets that require sequence number synchronization.
  • This network-side device embodiment corresponds to the above-mentioned data packet sequence number synchronization method embodiment shown in Figure 4.
  • Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effects.
  • the embodiment of the present application also provides a network side device.
  • the network side device 900 includes: an antenna 91 , a radio frequency device 92 , a baseband device 93 , a processor 94 and a memory 95 .
  • the antenna 91 is connected to the radio frequency device 92 .
  • the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing.
  • the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92.
  • the radio frequency device 92 processes the received information and then sends it out through the antenna 91.
  • the method performed by the network side device in the above embodiment can be implemented in the baseband device 93, which includes a baseband processor.
  • the baseband device 93 may include, for example, at least one baseband board, which is provided with multiple chips, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.
  • the network side device may also include a network interface 96, which is, for example, a common public radio interface (CPRI).
  • a network interface 96 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 900 in the embodiment of the present application also includes: instructions or programs stored in the memory 95 and executable on the processor 94.
  • the processor 94 calls the instructions or programs in the memory 95 to execute Figure 5 or Figure 6
  • the execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above-mentioned data packet sequence number synchronization method embodiment is implemented, and can To achieve the same technical effect, to avoid repetition, we will not repeat them here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface and The processor is coupled, and the processor is used to run programs or instructions to implement each process of the above-mentioned data packet sequence number synchronization method embodiment, and can achieve the same technical effect. To avoid repetition, the details will not be described here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above data packet sequence number synchronization method.
  • Each process of the embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.
  • An embodiment of the present application also provides a communication system, including: a first device and a second device.
  • the first device can be used to perform the steps of the data packet sequence number synchronization method shown in Figure 3 above.
  • the second device can To perform the steps of the data packet sequence number synchronization method shown in Figure 4 above.
  • the disclosed devices and methods can 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 may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
  • the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the 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 shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some 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 various embodiments of the present disclosure 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 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.
  • the program can be stored in a computer-readable storage medium.
  • the program can be stored in a computer-readable storage medium.
  • the process may include the processes of the embodiments of each of the above methods.
  • the storage medium can be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种数据包序号同步方法、装置及通信设备，属于无线通信技术领域，本申请实施例的数据包序号同步方法包括：第一设备发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。

Description

数据包序号同步方法、装置及通信设备
相关申请的交叉引用
本申请主张在2022年5月9日在中国提交的中国专利申请No.202210501619.5的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于无线通信技术领域，具体涉及一种数据包序号同步方法、装置及通信设备。
背景技术
现有通信中不同用户设备(User Equipment，UE，也可以称为终端)之间的数据相互独立，同一个UE的不同服务质量(Quality of Service，QoS)流(flow)或数据无线承载(Data Radio Bearer，DRB)的数据也相互独立。如图1所示，在无线接入网(Radio Access Network，RAN)侧不同UE的数据传输通道或同一UE的不同DRB上的数据包序号相互独立。即每个分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)实体单独维护该DRB上的数据包序号。那么，当多个UE的数据或者一个UE的不同传输通道的数据在传输性能上具有关联性时，如何进行传输，是亟待解决的问题。
发明内容
本申请实施例提供一种数据包序号同步方法、装置及通信设备，能够解决当多个UE的数据或者一个UE的不同传输通道的数据在传输性能上具有关联性时，如何进行传输的问题。
第一方面，提供了一种数据包序号同步方法，该方法包括：
第一设备发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
第二方面，提供了一种数据包序号同步方法，该方法包括：
第二设备获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者所述第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
所述第二设备根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
第三方面，提供了一种数据包序号同步装置，包括：
第一发送模块，用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
第四方面，提供了一种数据包序号同步装置，包括：
第一获取模块，用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
数据包编号模块，用于根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
第五方面，提供了一种通信设备，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面或第二方面所述的数据包序号同步方法的步骤。
第六方面，提供了一种通信设备，包括处理器及通信接口，其中，所述通信接口用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
第七方面，提供了一种通信设备，包括处理器及通信接口，其中，所述处理器用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者所述第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；所述处理器用于根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
第八方面，提供了一种通信系统，包括：第一设备及第二设备，所述第一设备可用于执行如第一方面所述的数据包序号同步方法的步骤，所述第二设备可用于执行如第二方面所述的数据包序号同步方法的步骤。
第九方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的数据包序号同步方法的步骤，或者实现如第二方面所述的数据包序号同步方法的步骤。
第十方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的数据包序号同步方法，或实现如第二方面所述的数据包序号同步方法。
第十一方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第二方面所述的数据包序号同步方法的步骤。
在本申请实施例中，通过发送数据包序号同步信息，使得接收到数据包序号同步信息 的设备可以基于数据包序号同步信息对需要序号同步的数据包进行编号并传输，以满足数据传输的服务质量。
附图说明
图1为现有的数据传输方式中各传输通道的数据包单独编号的方法示意图；
图2为本申请实施例可应用的一种无线通信系统的框图；
图3为本申请实施例的数据包序号同步方法的流程示意图之一；
图4为本申请实施例的数据包序号同步方法的流程示意图之二；
图5为本申请实施例的数据包序号同步装置的结构示意图之一；
图6为本申请实施例的数据包序号同步装置的结构示意图之二；
图7为本申请实施例的通信设备的结构示意图；
图8为本申请实施例的终端的硬件结构示意图；
图9为本申请实施例的网络侧设备的硬件结构示意图。
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清楚描述，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。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图2示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或WiFi节点等，基站可被称为节点B、演进节点B(eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmission Reception Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。
为了便于更好地理解本申请实施例，下面先介绍以下技术点。
1)PDCP功能简介
PDCP支持如下功能：
传输用户面或控制面数据；
维护PDCP序列号(Sequence Number，SN)；
支持采用鲁棒性头压缩(Robust Header Compression，ROHC)协议进行头压缩与解压缩；
支持采用以太网头压缩(Ethernet header compression，EHC)协议进行头压缩与解压缩；
加解密；
完整性保护和验证；
基于定时器的服务数据单元(Service Data Unit，SDU)丢弃；
当存在分离承载(split bear)和双激活协议栈承载(DAPS bear)时PDCP协议数据单元(Protocol Data Unit，PDU)路由；
PDCP PDU复制；
无线链路控制(Radio Link Control，RLC)确认模式(Acknowledged Mode，AM)的PDCP重建立流程时对上层PDU的顺序递交；
乱序递交；
RLC AM的PDCP重建立流程时对下层SDU的重复检测。
2)RLC功能简介
RLC支持如下功能：
传输上层PDU；
通过自动重传请求(Automatic Repeat reQuest，ARQ)进行纠错，只适用于AM；
分段/重组RLC SDU，只适用于UM和AM模式；
对RLC SDU分段进行重分段，只适用于AM；
重复包检测，只适用于AM；
RLC SDU丢弃处理，只适用于非确认模式(Unacknowledged Mode，UM)和AM；
RLC重建；
协议错误检测，只适用于AM。
下面对本申请实施例适用的场景举例进行说明。
场景1
随着数字化发展，日常生活中出现了多种多样的无线设备协同工作的情况。例如环绕立体声，通常环绕立体声的音源制作和欣赏对环境要求比较苛刻，需要多个音源采集设备和播放设备，并且各设备的位置均有特殊要求。因此，对于音源采集设备和环绕立体声音源制作设备之间的传输具有较高的时延和同步要求。传统上多以有线连接的方式，通过控制传输线缆的长度等来实现数据传输的时延一致性和同步要求。那么，当采用无线空口进行传输时，保障不同设备之间的传输时延和同步要求的方案有待于进一步研究。
场景2
在清华大学《2021-2022年元宇宙元宇宙发展研究报告》中指出元宇宙是整合多种新技术而产生的新型虚实相融的互联网应用和社会形态，它基于扩展现实技术提供沉浸式体验，基于数字孪生技术生成现实世界的镜像，基于区块链技术搭建经济体系，将虚拟世界与现实世界在经济系统、社交系统、身份系统上密切融合，并且允许每个用户进行内容生产和世界编辑。从人类生存纬度上看，将从现在的现实世界拓展至虚拟世界与现实世界的综合环境。从人类感官的纬度上看，将从现实视觉、听觉、触觉、嗅觉、味觉，扩展至虚拟视觉、虚拟听觉、虚拟触觉、虚拟嗅觉、虚拟味觉与现实感官融合的融合感官。上述基于数字孪生技术的现实世界的镜像，以及多种现实和虚拟感觉融合感官需要不止一个终端进行协作，并且多个终端之间的信息需要在满足一定时延要求下传输，此时既有传输时延要求，又有多个信息之间传输同步性的要求。通常多个设备上需要协同的数据，如果某一个设备上的数据因为信道等原因来不及按时递交时，其他设备上尚未传输的数据需要及时停止传输，以减少空口资源浪费。那么，无线接入网侧如何保障不同终端之间的传输时延 和同步，以及如何对多个无线设备上的数据包进行精准的控制(如调度传输、丢弃等)有待于进一步研究。
场景3
在无线通信过程中，在传输信息的同时电磁波也携带了环境信息，因此通信和感知具有天然的融合基础。通过无线电磁波进行感知是业界广泛关注的5.5G和6G的候选技术。根据目前研究进展，为了满足感知精度要求，通常需要一发多收或多发一收，最终将多个感知设备(如基站、终端)的感知测量结果通过算法联合处理产生更高精度的感知结果。当感知业务对感知时延或感知结果更新频率有较高要求时，一方面要求多个感知设备上发送的感知信号发送在空口具有较高的同步，另一方面要求多个感知设备上的感知测量结果在一定时间内发送到某一个感知功能(对感知测量结果进行处理产生感知结果)。同时，当感知业务需要在某一段时间内连续进行感知，并且感知目标具有移动性时，为了满足感知业务时间和空间上的连续性，同样会涉及多个感知设备上感知测量结果传输的同步和关联处理要求。如果某一个感知设备上的感知测量结果未满足测量要求(例如设置的感知SNR要求)时，那么相关联的其他感知设备在相同时刻的感知测量结果则无需传输至感知功能，以节省不必要的传输开销。在此场景下，无线接入网侧如何保障不同终端之间的传输时延和同步，以及如何对多个无线设备上的数据包进行精准的控制(如调度传输、丢弃等)有待于进一步研究。
前述三个场景的共同特点是：多个UE的上行数据之间具有关联性，并且要求各个UE上行数据传输具有较低时延，不同UE之间的时延同步性小于某一数值。然而，现有通信中不同UE之间的数据相互独立，同一UE的不同QoS flow或DRB的数据也相互独立。因此，在无线接入网侧不同UE的数据传输通道或同一UE的不同DRB上的数据包序号相互独立。即每个PDCP实体单独维护该DRB上的数据包序号。对于单个UE而言，在移动通信网络传输的保障速率和最大时延要求的情况下，现有方案基本通过业务的设计，一定程度上通过业务层的缓存和流控可以应对传输时延抖动。那么，当多个UE的数据或者一个UE的多个传输通道的数据在传输性能上具有关联性时，现有方案难以支持RAN侧可以识别其关联关系，从而较难根据数据关联关系进行数据包级别的传输控制(如调度传输、丢弃等)。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的数据包序号同步方法、装置及通信设备进行详细地说明。
请参考图3，本申请实施例提供一种数据包序号同步方法，包括：
步骤31：第一设备发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
本申请实施例中，可选的，所述第一设备可以是无线接入网设备(如基站)，也可以是终端。
当第一设备为接入网设备时，所述接入网设备可以是接收所述关联数据的设备。
可选的，所述第一设备为终端时，适用于多个终端通过旁链路(sidelink)协同进行数据传输的场景，所述场景为：第一设备(终端)的一部分数据通过自身传输给基站，另一部分数据通过旁链路发送给其他终端，由其他终端转发给基站，该种场景下，第一设备(终端)可以确定数据包序号同步信息，将数据包序号同步信息发送给基站和/或其他终端。例如，第一设备(终端)可以将数据包序号同步信息发送给基站和其他终端，或者，第一设备(终端)将数据包序号同步信息发送给基站，再由基站发送给其他终端。
当第一设备为终端时，上述多个设备中可以包括所述第一设备，也就是说第一设备可以是发送上述关联数据的多个设备中的其中一个设备。
当第一设备为终端时，上述一个设备可以是所述第一设备，也就是说第一设备可以是采用多个传输通道发送上述关联数据的所述一个设备。
本申请实施例中，所述数据包序号可以是PDCP序列号(Sequence Number，SN)。
在本申请实施例中，第一设备发送数据包序号同步信息，使得接收到数据包序号同步信息的设备，可以基于数据包序号同步信息对需要序号同步的数据包进行编号并传输，以满足数据传输的服务质量。
本申请实施例中，可选的，所述数据包序号同步信息包括以下至少一项：
1)需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识；所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
传输通道的标识例如可以是QFI(QoS流标识(Identity，ID)，QoS Flow ID)或DRB标识或逻辑信道的标识。
设备测量结果传输通道用于传输测量量，数据收集传输通道用于传输收集数据。测量量和收集数据可以称为感知数据。当待传输数据为感知数据(例如测量量或收集数据)时，感知数据不一定会通过用户面(DRB)传输，可能通过控制面(SRB)或目标面(也可以称为数据面)传输。所述目标面是用于支持数据收集、数据分发、数据安全、数据隐私、数据分析和数据预处理中的至少一项的协议功能面。
即，设备测量结果传输通道可以采用DRB标识表示，也可以通过信令无线承载(Signaling Radio Bear，SRB)标识(例如SRB1，SRB2，SRB3，SRB4)，和/或测量标识(例如最小化路测(Minimization of Drive Tests，MDT)，MDT所使用的Trace ID)表示，或者，设备测量结果传输通道也可以为新建的一类专用于数据面的通道，采用数据面的传输通道的标识表示。
数据收集传输通道可以是采用DRB标识表示，也可以通过SRB标识和/或数据收集标识(例如数据订阅ID)表示，或者，数据收集传输通道也可以为新建的一类专用于数据面的通道，采用数据面的传输通道的标识表示。
2)同步时间参考源的指示信息；
本申请实施例中，可选的，所述同步时间参考源的指示信息指示以全球定位系统(Global Positioning System，GPS)时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
3)启动数据包编号的时间；
如果需进行数据包序号同步的UE或网络之间有精准的授时，那么可依据该时间指示数据包编号的时间。例如，基于GPS授时指示，或者基于空口的帧号、子帧号、时隙号、符号指示。举例来说，启动数据包编号的时间为第X帧Y子帧、Z时隙。
在多个终端通过旁链路协同传输数据的场景下，也可以根据多个终端之间数据到达时间差设置启动数据包编号的时间，例如UE1需要通过UE2发送部分数据的场景下，UE1启动数据包编号的时间为T1时间，UE2启动数据包编号的时间则为T1+T2(其中T2为数据从UE1传输到UE2的时间)。
4)数据包起始序号的指示信息；
本申请实施例中，可选的，如果不指示数据包起始序号，可定义默认起始序号，例如在没有数据包起始序号的指示信息的情况下默认起始序号为零。
5)序号的长度信息；
序号的长度信息用于指示序号的长度，例如序号的长度有几个潜在的选项，序号的长度信息指示采用哪一个长度选项。例如0指示12比特长度的序号，1指示为18比特长度的序号。
6)数据包编号的周期；
本申请实施例中，可选的，所述数据包编号的周期包括第一周期(也可以称为长周期)，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
本申请实施例中，可选的，所述数据包编号的周期还包括第二周期(也可以称为短周期)，所述第二周期用于指示在所述第一周期内的序号分段时间。
7)补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
本申请实施例中，若以空口时间作为同步时间参考源，所述同步时间参考源的时间偏差补偿是指基站和终端之间的定时提前量(Timing Advance，TA)的补偿。当基于空口时间进行指示时，因UE距离基站位置远近不同会引起所接收到的下行信号有时间差，可通过TA进行补偿，以便于各UE间进行更高精度的时间同步。
本申请实施例中，数据到达时间偏差补偿可以是应用于多个终端通过旁链路(sidelink)协同进行数据传输的场景，其中，该场景是指一个终端(如UE1)的一部分数据由其自身发送给基站，另一部分数据先由该终端通过旁链路发送给其他终端(如UE2)，然后由其他终端转发给基站。数据到达时间偏差是指数据到达数据发送端的时间偏差。例如数据到达UE1的时间是T1，UE1通过旁链路发送给UE2的传输时延是T2，那么数据到达UE2的时间是T1+T2，T2就是数据到达时间偏差。数据到达时间偏差补偿是指通过补偿到达时 间偏差T2，使得多个终端数据包准确同步，避免因到达时间偏差引起误差。
8)序号的分段信息。
例如在数据包编号的周期包括前述长周期和短周期的情况下，序号中X(如4)比特用于长周期内的数据包计数，即每经过一个长周期，那么对应的X比特加1。在每个短周期内，通过Y比特来对数据包进行计数。
本申请实施例中，可选的，当所述第一设备需要将数据包序号同步信息发送给多个设备时，所述第一设备发送数据包序号同步信息包括：所述第一设备通过组播或广播的方式发送数据包序号同步信息。当面向大量设备间同步时，通过组播或广播的方式发送数据包序号同步信息，可以节省传输资源。当然，在需要向多个设备发送所述数据包序号同步信息时，所述第一设备也可以采用点对点的方式一一向多个设备发送所述数据包序号同步信息。
本申请实施例中，可选的，所述第一设备发送数据包序号同步信息之前还包括：所述第一设备根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息。
本申请实施例中，可选的，所述第一设备根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息之前还包括：所述第一设备接收所述关联信息。可选的，所述关联信息可以由核心网设备发送。
本申请实施例中，可选的，所述关联信息包括以下至少一项：
1)具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
例如如果多个UE间的数据相关联，那么该同步方标识可以是关联的UE标识，如果每个UE上有多个QoS flow(或DRB)，那么则需要UE标识和QoS flow标识(或DRB标识)联合来标识作为同步方标识。
例如具有关联关系的同步方标识包括：UE1 QoS flow 1和UE2 QoS flow 1。
2)数据关联的时间信息；
数据关联的时间信息包括以下至少一项：数据关联的最长时间，数据关联时间窗的最大抖动等，例如数据关联的时间信息为：多个UE之间的数据最长以100ms为时间窗相关联(即各同步方标识间的数据以100ms的时间长度相关)，因数据到达时间抖动造成的数据关联时间窗的最大抖动为1ms。
3)数据关联的性能指标信息；
4)所述关联数据的传输启动时间；
所述关联数据的传输启动时间可以是绝对时间也可以是相对时间。
5)所述多个设备或一个设备的多个传输通道之间的数据到达时间差。
本申请实施例中，可选的，所述数据关联的性能指标信息包括以下至少一项：
31)各所述同步方标识间的最大传输时延差；
例如，各同步方标识间的对应序号数据包的最大传输时延差小于10ms。
又例如，UE 1DRB1和UE2DRB2之间的对应序号数据包的最大传输时延差小于2ms。
32)各所述同步方标识间的数据包传输数量关系；
例如，传输通道A和传输通道B每100ms的数据包传输数量关系是100：10。
又例如，UE 1UE 1DRB1和UE2DRB2之间的数据包成功传输数量的比例为10：1。
33)各所述同步方标识间的最大速率差；
例如，各同步方标识间的最大速率差为1Mbps。
34)各所述同步方标识间的传输速率比例。
例如，传输通道A和传输通道B每100ms的传输速率比例是10：1。
35)各所述同步方标识间数据包重要性的关系。
例如，某个或某几个同步方标识的第N包为关键数据包，如果无法传输成功，其关联的其他数据包均可以不用传输等。
当然，所述数据关联的性能指标信息也可以是上述31)-35)的任意的组合，例如，所述数据关联的性能指标信息是传输通道A和传输通道B每100ms的传输速率比例是10：1，并且传输通道A和传输通道B的最大传输时延差不超过10ms。
本申请实施例中，可选的，所述第一设备发送数据包序号同步信息之后还包括：所述第一设备根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
本申请实施例中，可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识，例如QFI或DRB标识或逻辑信道标识；
需丢弃的数据包序号，该序号可以是准确的序号值，也可以是某一段序号指示；
丢弃原因。
举例来说，数据关联的性能指标信息为：UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果在1/2数据关联时间窗时尚未成功传输编号为N的包，那么该数据关联时间窗内其他数据包可丢弃，则如果第一设备(例如为基站)在某个数据关联时间窗1/2的时间位置尚未成功收到编号为N的包，根据收到的数据包的PDCP SN，确定该数据关联时间窗口内的其他需要丢弃的数据，包括UE1和/或UE2上所关联的尚未进行空口传输的数据包，以及基站已经收到尚未递交给其它网络功能的数据包。假如是以10ms的短周期为要求，如果在该周期的5ms处尚未收到所配置的编号为N的数据包，那么基站将收到的该短时间周期的数据包丢弃，并通知UE2和/或UE1将该短周期对应数值的包丢弃。
另一例子中，应用于多个终端通过旁链路联合传输数据的场景，例如，UE1的部分数据由自身传输给基站，另一部分数据通过旁链路发送给UE2，由UE2转发给基站，假设 数据关联的性能指标信息为：UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果UE1或UE2根据定时器信息发现某个数据包超时，则进行丢弃，并需发送包括需丢弃的数据包序号给网络侧(如基站)。网络侧根据收到的需丢弃的数据包序号，判断数据关联时间窗口内的其他需要丢弃的数据包，包括UE2或UE1上所关联的尚未进行空口传输的数据包，以及基站已经收到尚未递交给其它网络功能的数据包。具体来讲，假如是以10ms的短周期为要求，如果UE1在该10ms内某一个数据包传输超时丢弃，那么UE上报该数据包的序号(如XY＝0010 00010010)给基站，那么基站将收到的数据包的序号指示为该短时间周期的数据包丢弃(即序号中X部分等于0010的数据包)，并发送丢弃指示给UE2，指示前述序号中X为该短周期对应数值的包丢弃。
本申请的一些实施例中，可选的，所述关联数据为感知数据，所述多个设备为感知设备，当关联数据为感知数据时，与前述实施例中不同的是，前述实施例中的关联数据是通过用户面传输，因而同步方标识为QFI、DRB标识或逻辑信道标识，而感知数据可能通过用户面传输，也可能通过控制面或目标面(数据面)传输，其同步方标识可以为采用DRB标识表示，也可以通过信令无线承载(Signaling Radio Bear，SRB)标识(例如SRB1，SRB2，SRB3，SRB4)，和/或测量标识(或数据收集标识)表示，或者，也可以为新建的一类专用于数据面的通道，采用数据面的传输通道的标识表示。
本申请实施例中，可选的，当关联数据为感知数据时，所述第一设备根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制包括：
所述第一设备接收第一感知设备发送的感知测量失败指示信息，所述感知测量失败指示信息中包括测量失败对应的感知数据包的第一序号；
所述第一设备根据所述数据关联的性能指标信息，确定第二感知设备上与所述第一序号所关联的数据包的第二序号；
所述第一设备向所述第二感知设备发送丢弃指示，所述丢弃指示用于指示丢弃所述第二序号对应的数据包。
本申请实施例中，可选的，所述数据包级别的传输控制包括：发送数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包。例如，如果第一设备发现某一段关联数据包中因缺失某一个或几个数据包可能导致其它数据包传输无效时，那么可发送数据传输指示，指示优先传输所指示的序号的数据包，以满足关联性能要求。
本申请实施例中，可选的，所述数据传输指示包括以下至少一项：
1)优先传输数据包的同步方标识；
2)优先传输的数据包的序号；
该序号可以是准确的序号值，也可以是某一段序号指示。
3)优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的时频资源信息可以是优先传输的数据包使用的空口资源。例如传输所使用资源的帧、子帧、时隙、带宽部分(bandwidth Part，BWP)和/或无线承载(Radio Bearer，RB)等信息。
本申请实施例中，可选的，可以通过无线资源控制(Radio Resource Control，RRC)信令或下行控制信息(Downlink Control Information，DCI)调度资源用于所指示的序号的数据包传输。
4)优先传输的数据包传输所使用的参数配置信息；
例如包括TBS和/或调制和编码方案(Modulation and coding scheme，MCS)等参数配置信息。
5)优先传输原因。例如优先传输原因为关联数据传输。
请参考图4，本申请实施例还提供一种数据包序号同步方法，包括：
步骤41：第二设备获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者所述第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
本申请实施例中，可选的，所述第二设备为终端。
本申请实施例中，所述第二设备可以是从第一设备接收数据包序号同步信息，也可以是自身确定数据包序号同步信息。
步骤42：所述第二设备根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
在本申请实施例中，通过获取到的数据包序号同步信息，第二设备可以对需要序号同步的数据包进行编号，从而使得接收到该数据包的设备可以识别不同终端或者同一终端的不同传输通道之间的数据的关联关系，从而可以根据数据关联关系进行数据包级别的传输控制，从而提高数据传输的服务质量。
本申请实施例中，可选的，所述数据包序号同步信息包括以下至少一项：
1)需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
2)同步时间参考源的指示信息；
本申请实施例中，可选的，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
3)启动数据包编号的时间；
4)数据包起始序号的指示信息；
5)序号的长度信息；
6)数据包编号的周期；
本申请实施例中，可选的，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
本申请实施例中，可选的，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
7)补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
本申请实施例中，若以空口时间作为同步时间参考源，所述同步时间参考源的时间偏差补偿是指基站和终端之间的定时提前量(TA)的补偿。
本申请实施例中，数据到达时间偏差补偿可以是应用于多个终端通过旁链路(sidelink)协同进行数据传输的场景，其中，该场景是指一个终端(如UE1)的一部分数据由其自身发送给基站，另一部分数据先由该终端通过旁链路发送给其他终端(如UE2)，然后由其他终端转发给基站。数据到达时间偏差是指数据到达数据发送端的时间偏差。例如数据到达UE1的时间是T1，UE1通过旁链路发送给UE2的传输时延是T2，那么数据到达UE2的时间是T1+T2，T2就是数据到达时间偏差。数据到达时间偏差补偿是指通过补偿到达时间偏差T2，使得多个终端数据包准确同步，避免因到达时间偏差引起误差。
8)序号的分段信息。
本申请的一实施例中，所述第二设备可以根据所接收的数据包序号同步信息，在启动数据包编号的时间，从所指示的数据包的起始序号，以及，采用所指示的序号长度对所述需进行数据包序号同步的同步方标识上的数据包进行编号。如果数据包编号具有周期性或序号分段，那么可根据周期和序号分段指示进行编号，例如在第一个10ms的数据包通过X(0001)和Y(00000000-11111111)个比特进行编号；第二个10ms的数据包通过X(0010)和Y(00000000-11111111)个比特进行编号。
本申请实施例中，可选的，所述第二设备获取数据包序号同步信息之前还包括：所述第二设备发送所述多个设备或所述第二设备的多个传输通道的传输数据的关联信息，所述关联信息用于确定所述数据包序号同步信息。
本申请实施例中，可选的，所述关联信息包括以下至少一项：
1)具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
2)数据关联的时间信息；
3)数据关联的性能指标信息；
4)所述关联数据的传输启动时间；
5)所述多个设备或一个设备的多个传输通道之间的数据到达时间差。
本申请实施例中，可选的，所述数据关联的性能指标信息包括以下至少一项：
31)各所述同步方标识间的最大传输时延差；
例如，各同步方标识间的最大传输时延差小于10ms。
32)各所述同步方标识间的数据包传输数量关系；
例如，传输通道A和传输通道B每100ms的数据包传输数量关系是100：10。
33)各所述同步方标识间的最大速率差；
例如，各同步方标识间的最大速率差为1Mbps。
34)各所述同步方标识间的传输速率比例。
例如，传输通道A和传输通道B每100ms的传输速率比例是10：1。
35)各所述同步方标识间数据包重要性的关系。
当然，所述数据关联的性能指标信息也可以是上述31)-35)的任意的组合，例如，所述数据关联的性能指标信息是传输通道A和传输通道B每100ms的传输速率比例是10：1，并且传输通道A和传输通道B的最大传输时延差不超过10ms。
本申请实施例中，可选的，所述第二设备根据所述数据包序号同步信息，对需要序号同步的数据包进行编号之后还包括：所述第二设备根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。该方案通常应用于多个终端通过旁链路(sidelink)协同进行数据传输的场景，该场景下，第二设备(终端)的一部分数据由其自身发送给基站，另一部分数据先由该第二设备通过旁链路发送给其他终端，然后由其他终端转发给基站，该种场景下，第二设备可以对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
本申请实施例中，可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识；
需丢弃的数据包序号；
丢弃原因。
本申请实施例中，可选的，所述方法还包括：
所述第二设备接收丢弃指示，所述丢弃指示包括以下至少一项：需丢弃数据包的同步方标识，需丢弃的数据包序号，丢弃原因；
所述第二设备根据所述丢弃指示，丢弃需丢弃的数据包。
本申请实施例中，可选的，所述方法还包括：
所述第二设备接收数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包；
所述第二设备根据所述数据传输指示，优先传输所指示的序号的数据包，
可选的，所述数据传输指示包括以下至少一项：
1)优先传输数据包的同步方标识；
2)优先传输的数据包的序号；
3)优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的时频资源信息可以是优先传输的数据包使用的空口资源。例如可以是UE发送上行数据时，通过下行控制信息(Downlink Control Information，DCI)指示的用于上行数据的时频资源，例如某个子帧的某几个资源块(resource block)，或者，半静态调度时通过无线资源控制(Radio Resource Control，RRC)信令配置的用于上行数据的时频资源。
4)优先传输的数据包传输所使用的参数配置信息；
例如包括调制和编码方案(Modulation and coding scheme，MCS)等参数配置信息。
5)优先传输原因。
下面结合具体应用场景，对本申请实施例的数据包序号同步方法进行说明。
本申请实施例一：一种PDCP SN的同步方案
本申请实施例中，基于第5代(5th Generation，5G)通信协议提供了一种多DRB间PDCP SN的同步方法，该方法主要解决无线接入网侧如何保障不同数据之间的关联传输性能。相关流程如下：
步骤1：无线接入网的网络功能接收到多DRB的传输数据的关联信息，该关联信息包括以下至少一项：
1)具有关联关系的同步方标识，例如具有关联关系的同步方标识包括：UE1 QoS flow 1和UE2 QoS flow 1。
2)数据关联的时间信息，例如关联数据以100ms为数据关联时间窗进行关联。
3)数据关联的性能指标信息，例如数据关联的性能指标信息为：UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果在1/2数据关联时间窗时尚未成功传输编号为N的包，那么该数据关联时间窗内其他数据包可丢弃。
4)数据传输启动时间信息，例如为13：00。
步骤2：无线接入网的网络功能根据所收到的关联信息，向关联数据的发送方发送数据包序号同步信息，数据包序号同步信息包括如下至少一项：
1)需进行数据包序号同步的同步方标识，例如同步方标识可以是QFI(QoS流ID)或DRB标识；如果无线接入网的网络功能收到的关联信息以UE标识和QFI(QoS流ID)的方式指示同步方，那么无线接入网侧将QoS flow映射到DRB或逻辑信道时，需标识该DRB或逻辑信道需进行数据包序号同步。
2)同步时间参考源的指示信息，例如所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源；
3)启动数据包编号的时间，如果需进行数据包序号同步的UE或网络之间有精准的授时，那么可依据该时间指示数据包编号的时间。例如，基于GPS授时指示，或者基于空口的帧号、子帧号、时隙号、符号指示。例如启动数据包编号的时间为第X帧Y子帧、Z时隙。
4)数据包的起始序号指示信息，如果不指示数据包起始序号，可定义默认起始序号，例如在没有数据包起始序号的指示信息的情况下默认起始序号为零。
5)序号的长度信息，序号的长度信息用于指示序号的长度，例如序号的长度有几个潜在的选项，序号的长度信息指示采用哪一个长度选项。例如0指示12比特长度的PDCP SN，1指示为18比特长度的PDCP SN。
6)数据包编号的周期，如果数据包编号具有周期，那么指示数据包编号的周期，该周期可以分为一个或多个时间周期。例如一个长周期(如100ms)用于指示数据包序号多久重新设置为起始序号，一个短周期(10ms)指示在长周期内的序号分段时间。
7)补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿。如果基于空口时间同步，指示是否需要进行TA补偿。当基于空口时间进行指示时，因UE距离基站位置远近不同会引起所接收到的下行信号有时间差，可通过TA进行补偿，以便于各UE间进行更高精度的时间同步。
8)序号的分段信息。如果序号需要分段使用，那么需要指示序号的分段信息。例如在数据包编号的周期包括前述长周期和短周期的情况下，序号中X(如4)比特用于长周期内的数据包计数，即每经过一个长周期，那么对应的X比特加1。在每个短周期内，通过Y比特来对数据包进行计数。
本申请实施例中，如果需进行关联数据传输的设备较多，数据包序号同步信息属于各关联设备的公共信息，可考虑通过组播或广播的方式进行发送以节省空口资源。
步骤3：关联数据的发送方根据所接收的数据包序号同步信息，在启动数据包编号的时间，从所指示的数据包的起始序号，以及，采用所指示的序号长度对所述需进行数据包序号同步的同步方标识上的数据包进行编号。如果数据包编号具有周期性或序号分段，那么可根据周期和序号分段指示进行编号，例如在第一个10ms的数据包通过X(0001)和Y(00000000-11111111)个比特进行编号；第二个10ms的数据包通过X(0010)和Y(00000000-11111111)个比特进行编号。
步骤4：无线接入网侧和/或UE侧根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
仍然以前述关联信息(UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果在1/2数据关联时间窗时尚未成功传输编号为N的包，那么该数据关联时间窗内其他数据包可丢弃)为例。如果网络侧在某个数据关联时间窗1/2的时间位置尚未成功收到编号为N的包，网络侧无线接入网的网络功能根据收到的数据包的PDCP SN，确定该数据关联时间窗口内的其他需要丢弃的数据，包括UE2和/或UE1上所关联的尚未进行空口传输的数据包，以及基站已经收到尚未递交给其它网络功能的数据包。假如是以10ms的短周期为要求，如果在该周期的5ms处尚未收到所配置的编号为N的数据包，那么基站侧 将收到的该短时间周期的数据包丢弃，并通知UE2和/或UE1将该短周期对应数值的包丢弃。丢弃指示包括如下至少一项：
1)需丢弃数据的同步方标识，例如QFI或DRB标识或逻辑信道标识。
2)需丢弃的数据包序号，该序号可以是准确的序号值，也可以是某一段序号指示。
3)丢弃原因
本申请实施例以两个UE的2个QoS flow进行举例说明，本申请实施例的方法也可以用于大于两个UE或大于2个QoS flow的情况。
除上述数据包需要关联丢弃场景，如果网络侧发现某一段关联数据包中因缺失某一个或几个数据包可能导致其它数据包传输无效时，那么网络可发送数据传输指示，指示优先传输所指示PDCP SN的数据包，以满足关联性能要求。例如，通过RRC(Radio Resource Control，无线资源控制)信令或DCI(Downlink Control Information，下行控制信息)调度资源用于所指示的PDCP SN的数据包传输。
数据传输指示包括如下至少一项：
1)优先传输数据包的同步方标识，例如QFI或DRB标识或逻辑信道标识。
2)优先传输的数据包的序号，该序号可以是准确的序号值，也可以是某一段序号指示。
3)优先传输的数据包传输所使用的时频资源信息，例如传输所使用资源的帧、子帧、时隙、带宽部分(bandwidth Part，BWP)和/或无线承载(Radio Bearer，RB)等信息。
4)优先传输的数据包传输所使用的参数配置信息，例如包括TBS和/或调制和编码方案(Modulation and coding scheme，MCS)等信息。
5)优先传输原因。
本申请实施例二：一种旁链路(sidelink)数据包序号同步方案
本申请实施例面向UE1和其他UE通过旁链路协同进行数据传输的场景，例如当UE1的Uu接收信号参考功率(Reference Signal Received Power，RSRP)小于一定门限和/或UE1和UE2的sidelink链路(如PC5)的RSRP大于一定的门限时，UE1自身一部分数据发送给基站，将另一部分数据发送给UE2，由UE2转发给基站。该方案主要解决无线接入网侧如何保障协同的UE之间的关联传输性能。相关流程如下：
步骤1：UE1向网络侧发送传输数据的关联信息，关联信息包括以下至少一项：
1)具有关联关系的同步方标识，例如具有关联关系的同步方标识包括：UE1 QoS flow 1和UE2 QoS flow 1。
2)数据关联的时间信息，例如关联数据以100ms为数据关联时间窗进行关联。
3)数据关联的性能指标信息，例如数据关联的性能指标信息为：UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果在1/2数据关联时间窗时尚未成功传输编号为N的包，那么该数据关联时间窗内其他数据包可丢弃。
4)数据传输启动时间信息，例如为13：00。
5)UE1与其它UE之间数据到达时间差，例如UE2上关联数据比UE1上的序号同步的关联数据晚2ms。
步骤2：无线接入网的网络功能根据所收到的关联信息，向关联数据的发送方发送数据包序号同步信息，本申请实施例中，上述数据包序号同步信息也可以由UE1确定，并发送给网络侧和/或其他UE，例如UE1先发送给网络侧，由网络侧转发给其他UE，或者，UE1发送给网络侧和其他UE。
数据包序号同步信息包括如下至少一项：
1)需进行数据包序号同步的同步方标识，例如同步方标识可以是QFI(QoS流ID)或DRB标识；如果无线接入网的网络功能收到的关联信息以UE标识和QFI(QoS流ID)的方式指示同步方，那么无线接入网侧将QoS flow映射到DRB或逻辑信道时，需标识该DRB或逻辑信道需进行数据包序号同步。
2)同步时间参考源的指示信息，例如所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源；
3)启动数据包编号的时间，可以根据UE1与其他UE之间数据到达时间差设置启动数据包编号的时间，例如UE1为T1时间，UE2则为T1+T2(其中T2为数据从UE1传输到UE2的时间)。如果需进行数据包序号同步的UE或网络之间有精准的授时，那么也可依据该时间指示数据包编号的时间。例如，基于GPS授时指示，或者基于空口的帧号、子帧号、时隙号、符号指示。例如启动数据包编号的时间为第X帧Y子帧、Z时隙。
4)数据包的起始序号指示信息，如果不指示数据包起始序号，可定义默认起始序号，例如在没有数据包起始序号的指示信息的情况下默认起始序号为零。
5)序号的长度信息，序号的长度信息用于指示序号的长度，例如序号的长度有几个潜在的选项，序号的长度信息指示采用哪一个长度选项。例如0指示12比特长度的PDCP SN，1指示为18比特长度的PDCP SN。
6)数据包编号的周期，如果数据包编号具有周期，那么指示数据包编号的周期，该周期可以分为一个或多个时间周期。例如一个长周期(如100ms)用于指示数据包序号多久重新设置为起始序号，一个短周期(10ms)指示在长周期内的序号分段时间。
7)补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿。如果基于空口时间同步，指示是否需要进行TA补偿。当基于空口时间进行指示时，因UE距离基站位置远近不同会引起所接收到的下行信号有时间差，可通过TA进行补偿，以便于各UE间进行更高精度的时间同步。
8)序号的分段信息。如果序号需要分段使用，那么需要指示序号的分段信息。例如在数据包编号的周期包括前述长周期和短周期的情况下，序号中X(如4)比特用于长周期内的数据包计数，即每经过一个长周期，那么对应的X比特加1。在每个短周期内，通过Y比特来对数据包进行计数。
本申请实施例中，如果需进行关联数据传输的设备较多，数据包序号同步信息属于各关联设备的公共信息，网络侧可考虑通过组播或广播的方式进行发送以节省空口资源。
步骤3：关联数据的发送方根据所接收的数据包序号同步信息，在启动数据包编号的时间，从所指示的数据包的起始序号，以及，采用所指示的序号长度对所述需进行数据包序号同步的同步方标识上的数据包进行编号。
如果数据包编号具有周期性或序号分段，那么可根据周期和序号分段指示进行编号，例如在第一个10ms的数据包通过X(0001)和Y(00000000-11111111)个比特进行编号；第二个10ms的数据包通过X(0010)和Y(00000000-11111111)个比特进行编号。
步骤4：无线接入网侧和/或UE侧根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
仍然以前述关联信息(UE1 QoS flow 1或UE2 QoS flow 2数据关联时间窗内关键的数据包为编号为N的包，为了便于识别可附加其他特征，例如长度在【K，L】bytes范围内，如果在1/2数据关联时间窗时尚未成功传输编号为N的包，那么该数据关联时间窗内其他数据包可丢弃)为例。如果UE1或UE2根据定时器信息发现某个数据包超时，则进行丢弃，并需发送所丢弃的数据包的SN给网络侧。网络侧无线接入网的网络功能根据收到的丢弃的SN，判断该关联时间窗口内的其他需要丢弃的数据，包括UE2或UE1上所关联的尚未进行空口传输的数据包，以及基站已经收到尚未递交给其它网络功能的数据包。具体来讲，假如是以10ms的短周期为要求，如果UE1在该10ms内某一个数据包传输超时丢弃，那么UE上报该数据包SN(如XY＝0010 00010010)给基站，那么基站侧将收到的数据包SN指示为该短时间周期的数据包丢弃(即SN中X部分等于0010的数据包)，并发送丢弃指示给UE2，指示前述SN中X为该短周期对应数值的包丢弃。
本申请实施例三：一种感知测量结果的传输方案
如前述场景3内容，为了满足感知精度要求，通常需要一发多收或多发一收，最终将多个感知设备(如基站和/或终端)的感知测量结果通过算法联合处理产生更高精度的感知结果。当感知业务对感知时延或感知结果更新频率有较高要求时，一方面要求多个感知设备上发送的感知信号发送在空口具有较高的同步，另一方面要求多个感知设备上的感知测量结果在一定时间内发送到某一个感知功能(对感知测量结果进行处理产生感知结果)。同时，当感知业务需要在某一段时间内连续进行感知，并且感知目标具有移动性时，为了满足感知业务时间和空间上的连续性，同样会涉及多个感知设备上感知测量结果传输的同步和关联处理要求。并且，为满足某一精度的感知结果要求，一般满足某一质量要求的感知测量结果才有被传输至感知功能和进行处理的价值，如果感知测量结果质量差，即使传输至感知功能也无法使用或导致感知结果精度较差。因为，如果某一个感知设备上的感知测量结果未满足测量要求(例如设置的感知SNR要求)时，那么相关联的其他感知设备在相同时刻的感知测量结果则无需传输至感知功能，以节省不必要的传输开销。
本申请实施例面向多个感知信号接收设备之间感知测量量的同步编号、传输和丢弃方 案进行说明。为了便于说明，下面以基站发送感知信号，多个UE接收感知信号和测量为例进行说明。该方案也可以用于多个UE和基站接收感知信号和测量，或者多个基站接收感知信号和测量的情况。
步骤1：感知功能(负责接收感知请求和提供感知结果的网络功能，可以为其他名称，sensing function，SF)接收感知请求，感知请求中包括但不限于如下信息中的一项或多项：
1)感知业务类型
本申请实施例中，可根据对感知信号的带宽和时域持续时延要求定义感知业务类型，如Type I为大带宽连续性感知业务(根据指定时间或地理位置等提供多次感知结果)；Type II为大带宽一次性感知业务(提供一次感知结果)；Type III为小带宽连续性感知业务；type IV为小带宽一次性感知业务。
也可以根据感知业务服务质量类型/等级(QoS class)定义感知业务类型，如Type I：尽力而为(Best Effort)型感知业务，如果感知结果不能满足QoS指标要求，仍需要反馈感知结果，但需要指示说明所请求的QoS没有被满足。如果没有获得感知结果，则反馈失败原因；Type II：多QoS(Multiple QoS)型感知业务，即包含多个QoS等级对应的QoS指标要求，如果感知结果不满足最严格的QoS指标要求，则SF再次发起感知流程，尝试满足更低要求的QoS指标要求，直到满足其中一个QoS指标要求为止，如果最宽松的QoS指标要求仍未满足，则不反馈定位结果，仅反馈失败原因；Type III：保障(Assured)型感知业务，最严格的感知QoS类型，如果感知结果不能满足QoS指标要求，则不反馈定位结果，仅反馈失败原因。
也可根据感知物理范围以及实时性要求定义感知业务类型。如Type I：感知范围大且实时性要求高(Delay Critical LSS)；Type II：感知范围大且实时性要求低(LSS)；Type III：感知范围小且实时性要求低(Delay Critical SSS)；Type IV：感知范围小且实时性要求低(SSS)。
2)感知对象
感知目标可分为per object(以某个感知目标为感知对象的感知业务，如以UE为目标)和per area(以某个地理区域为感知对象的感知业务，如某个机场区域)。
3)感知业务服务质量要求，包括但不限于：感知精度、感知分辨率、感知误差、感知范围、感知时延、检测概率和虚警概率中的至少一项；感知分辨率根据感知业务不同，可以是距离分辨率、成像分辨率、移动速度分辨率、角度分辨率、呼吸分辨率、频率分辨率或降雨量分辨率；感知误差根据感知业务不同，可以是满足某一置信度的情况下的距离误差、成像误差、移动速度误差、呼吸次数误差、识别准确率和/或降雨量误差。
4)感知QoS信息，即本申请前述感知信号质量要求。如果SF接收的请求信息中未包括本申请所述的感知QoS信息，那么SF基于感知业务服务质量等信息产生本申请所述的感知QoS信息。
步骤2：SF负责感知服务质量(QoS)的控制，即面向感知服务质量要求，对感知相 关节点的进行控制，从而满足感知服务QoS要求。
步骤3：SF和/或基站确定感知链路或感知方式，感知方式可以包括基站发UE收，UE发基站收，基站自发自收，UE间收发，基站间收发或UE自发自收。SF和/或基站确定感知信号发送或接收节点，移动通信系统中的感知信号发送或接收节点包括网络设备(如基站)和UE(如手机)。例如SF确定感知方式为基站发UE收，选择基站A作为感知信号发送节点，SF和基站联合确定UE1、UE2为感知信号接收节点。
步骤4：SF和/或基站确定感知信号，潜在的感知信号包括参考信号和数据信号，其中参考信号可以为通信参考信号或感知专用参考信号。
步骤5：SF和/或基站确定感知所使用的时频资源，潜在的感知资源包括通信中未使用的时频资源(如保护带)，共用通信中已使用的时频资源(如参考信号或数据信号)，感知专用的时频资源。进一步还需确定感知信号的配置，潜在的配置包括感知信号的时、频和空域资源信息。如果确定感知时频资源的节点不是感知信号的发送节点，那么向感知信号发送节点发送感知信号配置。
步骤6：SF和/或基站确定感知测量量的配置，潜在的配置包括需测量的感知信号指示、需测量的感知信号数量或时间、测量结果的上报指示、感知测量约束条件(指在满足哪一项或多项约束条件下可进行感知测量，潜在的约束条件项包括接收信号信噪比/信干燥比，信号杂波比，目标感知信号分量与其他感知信号分量之比，目标感知时延区间的信道响应幅度值与其它时延区间的幅度值之比。例如接收信号信噪比/信干燥比不小于10dB，目标感知时延区间的信道响应幅度值与其它时延区间的幅度值之比不小于-5dB)等。如果确定感知测量量配置的节点不是感知信号的接收和测量节点，那么向感知信号接收节点发送感知测量量配置。
步骤7：SF和/或基站确定和配置感知测量结果上报的传输通道，包括建立、修改或释放传输通道等。
步骤8：SF将感知测量结果传输的关联信息发送给基站，关联信息包括如下至少一项：
1)具有关联关系的同步方标识，例如如果采用用户面通道传输可以是UE1 QoS flow 1，UE2 QoS flow 1，如果采用控制面通道或其他新增协议面(如数据面)的方式，可以是UE 1测量ID(如最小化路测Minimization of Drive Tests，MDT所使用的Trace ID)或数据收集ID 1(如订阅ID)，UE 2测量ID或数据收集ID 1。
2)数据关联的时间信息，例如关联数据以10ms为数据关联时间窗进行关联。
3)数据关联的性能指标信息，例如如果UE1 QoS flow 1/测量ID或数据收集ID 1在某个数据关联时间窗的感知测量失败，那么UE2 QoS flow 2/测量ID或数据收集ID 1对应的感知测量结果也无需传输。
4)数据传输启动时间信息，例如为第X帧，Y子帧和Z时隙。
步骤8：基站根据所收到的关联信息，向关联数据的发送方发送数据包序号同步信息，即感知测量量的数据序号信息，也可以被称为感知测量时间标签信息(通常感知测量结果 上报时除测量结果本身还需要上报时间、地理位置等作为标签信息，以便于SF更好地使用感知测量结果)，数据包序号同步信息包括如下至少一项：
1)需进行数据包序号同步的同步方标识，例如QFI或DRB标识或测量ID或数据收集ID。如果无线接入网的网络功能收到的关联信息以上述UE标识和QoS flow标识的方式进行指示，那么无线网络侧将QoS flow映射到DRB或逻辑信道或测量ID或数据收集ID时，需标识该DRB或逻辑信道或测量ID或数据收集ID需进行数据包序号同步。
2)同步时间参考源的指示信息，例如所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源；
3)启动数据包编号的时间，在感知测量场景下启动数据包编号的时间可以复用感知测量的时间，例如UE1对第X帧，Y子帧和Z时隙的感知信号M进行感知测量，UE2对第X帧，Y子帧和Z时隙的感知信号M进行感知测量。那么第X帧，Y子帧和Z时隙可复用作为启动数据包编号的时间。
4)数据包的起始序号指示信息，如果不指示数据包起始序号，可定义默认起始序号，例如在没有数据包起始序号的指示信息的情况下默认起始序号为零。
5)序号的长度信息，序号的长度信息用于指示序号的长度，例如序号的长度有几个潜在的选项，序号的长度信息指示采用哪一个长度选项。例如0指示12比特长度的PDCP SN，1指示为18比特长度的PDCP SN。
6)数据包编号的周期，如果数据包编号具有周期，那么指示数据包编号的周期，该周期可以分为一个或多个时间周期。例如一个长周期(如100ms)用于指示数据包序号多久重新设置为起始序号，一个短周期(10ms)指示在长周期内的序号分段时间。
7)补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿。如果基于空口时间同步，指示是否需要进行TA补偿。当基于空口时间进行指示时，因UE距离基站位置远近不同会引起所接收到的下行信号有时间差，可通过TA进行补偿，以便于各UE间进行更高精度的时间同步。
8)序号的分段信息。如果序号需要分段使用，那么需要指示序号的分段信息。例如在数据包编号的周期包括前述长周期和短周期的情况下，序号中X(如4)比特用于长周期内的数据包计数，即每经过一个长周期，那么对应的X比特加1。在每个短周期内，通过Y比特来对数据包进行计数。
本申请实施例中，如果需进行关联数据传输的设备较多，数据包序号同步信息属于各关联设备的公共信息，可考虑通过组播或广播的方式进行发送以节省空口资源。
步骤9：如果感知测量设备根据所配置的感知测量要求(如前述信噪比/信干燥比，信号杂波比，目标感知信号分量与其他感知信号分量之比，目标感知时延区间的信道响应幅度值与其它时延区间的幅度值之比。例如接收信号信噪比/信干燥比不小于10dB，目标感知时延区间的信道响应幅度值与其它时延区间的幅度值之比不小于-5dB)判定感知测量失败，那么根据前述感知测量结果数据包编号信息，发送测量失败对应的感知数据包序号信 息给网络侧。
步骤10：网络侧(如基站)根据关联的性能指示信息，如前述关联信息：如果UE1 QoS flow 1/测量ID或数据收集ID 1在某个时间窗的感知测量失败，那么UE2 QoS flow 2/测量ID或数据收集ID 1对应的感知测量结果也无需传输，网络侧根据收到的数据包序号，判断其他感知测量设备上所关联的数据包序号，并发送该数据包序号指示给对应的感知测量设备指示丢弃该数据包。
本实施例以两个UE的进行举例说明，该方案也可以用于大于两个UE的情况。
另外，除上述数据包需要关联丢弃场景，如果网络侧发现需联合处理的感知测量结果因缺失某一个或几个数据包可能导致其它已经收到的感知测量结果传输无效时，那么网络侧可发送数据传输指示，指示优先传输所指示数据包序号的数据，以满足关联性能要求。
本申请上述实施例中的数据包序号同步方法适用于5G、6G等通信系统。
本申请实施例提供的数据包序号同步方法，执行主体可以为数据包序号同步装置。本申请实施例中以数据包序号同步装置执行数据包序号同步方法为例，说明本申请实施例提供的数据包序号同步装置。
请参考图5，本申请实施例还提供一种数据包序号同步装置50，包括：
第一发送模块51，用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
在本申请实施例中，通过发送数据包序号同步信息，使得接收到数据包序号同步信息的设备可以根据数据包序号同步信息对需要序号同步的数据包进行编号并传输，从而提高数据传输的服务质量。
可选的，所述数据包序号同步信息包括以下至少一项：
需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
同步时间参考源的指示信息；
启动数据包编号的时间；
数据包起始序号的指示信息；
序号的长度信息；
数据包编号的周期；
补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
序号的分段信息。
可选的，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
可选的，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
可选的，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
可选的，所述第一发送模块51，用于通过组播或广播的方式发送数据包序号同步信息。
可选的，所述数据包序号同步装置50还包括：
确定模块，用于根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息。
可选的，所述数据包序号同步装置50还包括：
接收模块，用于接收所述关联信息。
可选的，所述接收模块，用于接收核心网设备发送的所述关联信息。
可选的，所述关联信息包括以下至少一项：
具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
数据关联的时间信息；
数据关联的性能指标信息；
所述关联数据的传输启动时间；
所述多个设备或一个设备的多个传输通道之间的数据到达时间差。
可选的，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
可选的，所述数据包序号同步装置50还包括：
处理模块，用于根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识；
需丢弃的数据包序号；
丢弃原因。
可选的，所述关联数据为感知数据，所述多个设备为感知设备，所述处理模块，用于接收第一感知设备发送的感知测量失败指示信息，所述感知测量失败指示信息中包括测量失败对应的感知数据包的第一序号；根据所述数据关联的性能指标信息，确定第二感知设备上与所述第一序号所关联的数据包的第二序号；向所述第二感知设备发送丢弃指示，所 述丢弃指示用于指示丢弃所述第二序号对应的数据包。
可选的，所述数据包级别的传输控制包括：发送数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包。
可选的，所述数据传输指示包括以下至少一项：
优先传输数据包的同步方标识；
优先传输的数据包的序号；
优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的参数配置信息；
优先传输原因。
本申请实施例中的数据包序号同步装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。
本申请实施例提供的数据包序号同步装置能够实现图3的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
请参考图6，本申请实施例还提供一种数据包序号同步装置60，包括：
第一获取模块61，用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
数据包编号模块62，用于根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
在本申请实施例中，通过获取到的数据包序号同步信息，可以对需要序号同步的数据包进行编号，从而使得接收到该数据包的设备可以识别不同终端或者同一终端的不同传输通道之间的数据的关联关系，从而可以根据数据关联关系进行数据包级别的传输控制，从而提高数据传输的服务质量。
可选的，所述数据包序号同步信息包括以下至少一项：
需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
同步时间参考源的指示信息；
启动数据包编号的时间；
数据包起始序号的指示信息；
序号的长度信息；
数据包编号的周期；
补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
序号的分段信息。
可选的，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
可选的，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
可选的，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
可选的，所述数据包序号同步装置60还包括：
第一发送模块，用于发送所述多个设备或所述第二设备的多个传输通道的传输数据的关联信息，所述关联信息用于确定所述数据包序号同步信息。
可选的，所述关联信息包括以下至少一项：
具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
数据关联的时间信息；
数据关联的性能指标信息；
所述关联数据的传输启动时间；
所述多个设备或所述第二设备的多个传输通道之间的数据到达时间差。
可选的，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
可选的，所述数据包序号同步装置60还包括：
处理模块，用于根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识；
需丢弃的数据包序号；
丢弃原因。
可选的，所述数据包序号同步装置60还包括：
第一接收模块，用于接收丢弃指示，所述丢弃指示包括以下至少一项：需丢弃数据包的同步方标识，需丢弃的数据包序号，丢弃原因；
丢弃模块，用于根据所述丢弃指示，丢弃需丢弃的数据包。
可选的，所述数据包序号同步装置60还包括：
第二接收模块，用于接收数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包；
第二发送模块，用于根据所述数据传输指示，优先传输所指示的序号的数据包，
可选的，所述数据传输指示包括以下至少一项：
优先传输数据包的同步方标识；
优先传输的数据包的序号；
优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的参数配置信息；
优先传输原因。
本申请实施例中的数据包序号同步装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。
本申请实施例提供的数据包序号同步装置能够实现图4的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
如图7所示，本申请实施例还提供一种通信设备70，包括处理器71和存储器72，存储器72上存储有可在所述处理器71上运行的程序或指令，该程序或指令被处理器71执行时实现上述数据包序号同步方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，所述通信接口用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据；或者，所述处理器，用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。该终端实施例与上述终端执行的数据包序号同步方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图8为实现本申请实施例的一种终端的硬件结构示意图。
该终端80包括但不限于：射频单元81、网络模块82、音频输出单元83、输入单元84、传感器85、显示单元86、用户输入单元87、接口单元88、存储器89以及处理器810等中的至少部分部件。
本领域技术人员可以理解，终端80还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器810逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图8中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元84可以包括图形处理单元(Graphics Processing Unit，GPU)841和麦克风842，图形处理器841对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单 元86可包括显示面板861，可以采用液晶显示器、有机发光二极管等形式来配置显示面板861。用户输入单元87包括触控面板871以及其他输入设备872中的至少一种。触控面板871，也称为触摸屏。触控面板871可包括触摸检测装置和触摸控制器两个部分。其他输入设备872可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元81接收来自网络侧设备的下行数据后，可以传输给处理器810进行处理；另外，射频单元81可以向网络侧设备发送上行数据。通常，射频单元81包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器89可用于存储软件程序或指令以及各种数据。存储器89可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器89可以包括易失性存储器或非易失性存储器，或者，存储器89可以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)，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，DDRSDRAM)、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)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器89包括但不限于这些和任意其它适合类型的存储器。
处理器810可包括一个或多个处理单元；可选的，处理器810集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器810中。
一种实施方式中，射频单元81，用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
在本申请实施例中，通过发送数据包序号同步信息，使得接收到数据包序号同步信息的设备可以根据数据包序号同步信息对需要序号同步的数据包进行编号，从而提高数据传输的服务质量。
可选的，所述数据包序号同步信息包括以下至少一项：
需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设 备测量结果传输通道和数据收集传输通道；
同步时间参考源的指示信息；
启动数据包编号的时间；
数据包起始序号的指示信息；
序号的长度信息；
数据包编号的周期；
补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
序号的分段信息。
可选的，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
可选的，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
可选的，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
可选的，所述射频单元81，用于通过组播或广播的方式发送数据包序号同步信息。
可选的，所述处理器810，用于根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息。
可选的，所述关联信息包括以下至少一项：
具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
数据关联的时间信息；
数据关联的性能指标信息；
所述关联数据的传输启动时间；
所述多个设备或一个设备的多个传输通道之间的数据到达时间差。
可选的，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
可选的，所述处理器810，用于根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识；
需丢弃的数据包序号；
丢弃原因。
可选的，所述关联数据为感知数据，所述多个设备为感知设备，所述处理模块，用于接收第一感知设备发送的感知测量失败指示信息，所述感知测量失败指示信息中包括测量失败对应的感知数据包的第一序号；根据所述数据关联的性能指标信息，确定第二感知设备上与所述第一序号所关联的数据包的第二序号；向所述第二感知设备发送丢弃指示，所述丢弃指示用于指示丢弃所述第二序号对应的数据包。
可选的，所述数据包级别的传输控制包括：发送数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包。
可选的，所述数据传输指示包括以下至少一项：
优先传输数据包的同步方标识；
优先传输的数据包的序号；
优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的参数配置信息；
优先传输原因。
另外一种实施方式中，所述处理器810，用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
在本申请实施例中，通过获取到的数据包序号同步信息，可以对需要序号同步的数据包进行编号，从而使得接收到该数据包的设备可以识别不同终端或者同一终端的不同传输通道之间的数据的关联关系，从而可以根据数据关联关系进行数据包级别的传输控制，从而提高数据传输的服务质量。
可选的，所述数据包序号同步信息包括以下至少一项：
需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
同步时间参考源的指示信息；
启动数据包编号的时间；
数据包起始序号的指示信息；
序号的长度信息；
数据包编号的周期；
补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
序号的分段信息。
可选的，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间 参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
可选的，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
可选的，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
可选的，所述射频单元81，用于发送所述多个设备或所述第二设备的多个传输通道的传输数据的关联信息，所述关联信息用于确定所述数据包序号同步信息。
可选的，所述关联信息包括以下至少一项：
具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道；
数据关联的时间信息；
数据关联的性能指标信息；
所述关联数据的传输启动时间；
所述多个设备或所述第二设备的多个传输通道之间的数据到达时间差。
可选的，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
可选的，所述处理器810，用于根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
可选的，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
需丢弃数据包的同步方标识；
需丢弃的数据包序号；
丢弃原因。
可选的，所述射频单元81，用于接收丢弃指示，所述丢弃指示包括以下至少一项：需丢弃数据包的同步方标识，需丢弃的数据包序号，丢弃原因；
丢弃模块，用于根据所述丢弃指示，丢弃需丢弃的数据包。
可选的，所述射频单元81，用于接收数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包；根据所述数据传输指示，优先传输所指示的序号的数据包，
可选的，所述数据传输指示包括以下至少一项：
优先传输数据包的同步方标识；
优先传输的数据包的序号；
优先传输的数据包传输所使用的时频资源信息；
优先传输的数据包传输所使用的参数配置信息；
优先传输原因。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，通信接口用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。该网络侧设备实施例与上述图3所示的数据包序号同步方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，处理器用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。该网络侧设备实施例与上述图4所示的数据包序号同步方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备。如图9所示，该网络侧设备900包括：天线91、射频装置92、基带装置93、处理器94和存储器95。天线91与射频装置92连接。在上行方向上，射频装置92通过天线91接收信息，将接收的信息发送给基带装置93进行处理。在下行方向上，基带装置93对要发送的信息进行处理，并发送给射频装置92，射频装置92对收到的信息进行处理后经过天线91发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置93中实现，该基带装置93包括基带处理器。
基带装置93例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图9所示，其中一个芯片例如为基带处理器，通过总线接口与存储器95连接，以调用存储器95中的程序，执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口96，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本申请实施例的网络侧设备900还包括：存储在存储器95上并可在处理器94上运行的指令或程序，处理器94调用存储器95中的指令或程序执行图5或图6所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述数据包序号同步方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和 所述处理器耦合，所述处理器用于运行程序或指令，实现上述数据包序号同步方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述数据包序号同步方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种通信系统，包括：第一设备及第二设备，所述第一设备可用于执行如上图3所示的数据包序号同步方法的步骤，所述第二设备可用于执行如上图4所示的数据包序号同步方法的步骤。
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公开的范围。
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。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，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，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
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，本公开的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的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)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来控制相关的硬件来完成，所述的程序可存储于一计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory，ROM)或随机存储记忆体(Random Access Memory，RAM)等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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可以以计算机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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (35)

  1. 一种数据包序号同步方法，包括：
    第一设备发送数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
  2. 根据权利要求1所述的方法，其中，所述数据包序号同步信息包括以下至少一项：
    需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识；
    同步时间参考源的指示信息；
    启动数据包编号的时间；
    数据包起始序号的指示信息；
    序号的长度信息；
    数据包编号的周期；
    补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
    序号的分段信息。
  3. 根据权利要求2所述的方法，其中，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
  4. 根据权利要求2所述的方法，其中，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
  5. 根据权利要求4所述的方法，其中，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
  6. 根据权利要求1所述的方法，其中，所述第一设备发送数据包序号同步信息包括：
    所述第一设备通过组播或广播的方式发送数据包序号同步信息。
  7. 根据权利要求1所述的方法，其中，所述第一设备发送数据包序号同步信息之前还包括：
    所述第一设备根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息。
  8. 根据权利要求7所述的方法，其中，所述第一设备根据所述多个设备或一个设备的多个传输通道的传输数据的关联信息，确定所述数据包序号同步信息之前还包括：
    所述第一设备接收所述关联信息。
  9. 根据权利要求8所述的方法，其中，所述第一设备接收所述关联信息包括：
    所述第一设备接收核心网设备发送的所述关联信息。
  10. 根据权利要求7所述的方法，其中，所述关联信息包括以下至少一项：
    具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识；
    数据关联的时间信息；
    数据关联的性能指标信息；
    所述关联数据的传输启动时间；
    所述多个设备或一个设备的多个传输通道之间的数据到达时间差。
  11. 根据权利要求2或10所述的方法，其中，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道。
  12. 根据权利要求10所述的方法，其中，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
  13. 根据权利要求10所述的方法，其中，所述第一设备发送数据包序号同步信息之后还包括：
    所述第一设备根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
  14. 根据权利要求13所述的方法，其中，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
    需丢弃数据包的同步方标识；
    需丢弃的数据包序号；
    丢弃原因。
  15. 根据权利要求13所述的方法，其中，所述关联数据为感知数据，所述多个设备为感知设备，所述第一设备根据所述数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制包括：
    所述第一设备接收第一感知设备发送的感知测量失败指示信息，所述感知测量失败指示信息中包括测量失败对应的感知数据包的第一序号；
    所述第一设备根据所述数据关联的性能指标信息，确定第二感知设备上与所述第一序号所关联的数据包的第二序号；
    所述第一设备向所述第二感知设备发送丢弃指示，所述丢弃指示用于指示丢弃所述第二序号对应的数据包。
  16. 根据权利要求13所述的方法，其中，所述数据包级别的传输控制包括：发送数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包。
  17. 根据权利要求16所述的方法，其中，所述数据传输指示包括以下至少一项：
    优先传输数据包的同步方标识；
    优先传输的数据包的序号；
    优先传输的数据包传输所使用的时频资源信息；
    优先传输的数据包传输所使用的参数配置信息；
    优先传输原因。
  18. 一种数据包序号同步方法，包括：
    第二设备获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者所述第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
    所述第二设备根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
  19. 根据权利要求18所述的方法，其中，所述数据包序号同步信息包括以下至少一项：
    需要进行数据包序号同步的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识；
    同步时间参考源的指示信息；
    启动数据包编号的时间；
    数据包起始序号的指示信息；
    序号的长度信息；
    数据包编号的周期；
    补偿指示信息，用于指示是否需要进行同步时间参考源的时间偏差补偿和/或数据到达时间偏差补偿；
    序号的分段信息。
  20. 根据权利要求19所述的方法，其中，所述同步时间参考源的指示信息指示以GPS时间或空口时间作为同步时间参考源，所述空口时间包括以下至少一项：基于空口的帧号、子帧号、时隙号和符号。
  21. 根据权利要求19所述的方法，其中，所述数据包编号的周期包括第一周期，所述第一周期用于指示数据包序号重新设置为起始序号的时间。
  22. 根据权利要求21所述的方法，其中，所述数据包编号的周期还包括第二周期，所述第二周期用于指示在所述第一周期内的序号分段时间。
  23. 根据权利要求18所述的方法，其中，所述第二设备获取数据包序号同步信息之前还包括：
    所述第二设备发送所述多个设备或所述第二设备的多个传输通道的传输数据的关联信息，所述关联信息用于确定所述数据包序号同步信息。
  24. 根据权利要求23所述的方法，其中，所述关联信息包括以下至少一项：
    具有关联关系的同步方标识，所述同步方标识为传输所述关联数据的设备标识和/或传输通道的标识；
    数据关联的时间信息；
    数据关联的性能指标信息；
    所述关联数据的传输启动时间；
    所述多个设备或所述第二设备的多个传输通道之间的数据到达时间差。
  25. 根据权利要求19或24所述的方法，其中，所述传输通道包括至少一项：数据无线承载、逻辑信道、设备测量结果传输通道和数据收集传输通道。
  26. 根据权利要求24所述的方法，其中，所述数据关联的性能指标信息包括以下至少一项：各所述同步方标识间的最大传输时延差、各所述同步方标识间的数据包传输数量关系、各所述同步方标识间的最大速率差、各所述同步方标识间的传输速率比例和各所述同步方标识间数据包重要性的关系。
  27. 根据权利要求18所述的方法，其中，所述第二设备根据所述数据包序号同步信息，对需要序号同步的数据包进行编号之后还包括：
    所述第二设备根据数据关联的性能指标信息对序号同步的数据包进行性能监测，并根据性能监测结果执行数据包级别的传输控制。
  28. 根据权利要求27所述的方法，其中，所述数据包级别的传输控制包括：发送丢弃指示，所述丢弃指示包括以下至少一项：
    需丢弃数据包的同步方标识；
    需丢弃的数据包序号；
    丢弃原因。
  29. 根据权利要求18所述的方法，其中，还包括：
    所述第二设备接收丢弃指示，所述丢弃指示包括以下至少一项：需丢弃数据包的同步方标识，需丢弃的数据包序号，丢弃原因；
    所述第二设备根据所述丢弃指示，丢弃需丢弃的数据包。
  30. 根据权利要求18所述的方法，其中，还包括：
    所述第二设备接收数据传输指示，所述数据传输指示用于指示优先传输所指示的序号的数据包；
    所述第二设备根据所述数据传输指示，优先传输所指示的序号的数据包。
  31. 根据权利要求30所述的方法，其中，所述数据传输指示包括以下至少一项：
    优先传输数据包的同步方标识；
    优先传输的数据包的序号；
    优先传输的数据包传输所使用的时频资源信息；
    优先传输的数据包传输所使用的参数配置信息；
    优先传输原因。
  32. 一种数据包序号同步装置，包括：
    第一发送模块，用于发送数据包序号同步信息，所述数据包序号同步信息用于实现多 个设备或者一个设备的多个传输通道的数据包序号同步，所述多个设备或一个设备的多个传输通道的传输数据为关联数据。
  33. 一种数据包序号同步装置，包括：
    第一获取模块，用于获取数据包序号同步信息，所述数据包序号同步信息用于实现多个设备或者第二设备的多个传输通道的数据包序号同步，所述多个设备或所述第二设备的多个传输通道的传输数据为关联数据，所述多个设备包括所述第二设备；
    数据包编号模块，用于根据所述数据包序号同步信息，对需要序号同步的数据包进行编号。
  34. 一种通信设备，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至17任一项所述的数据包序号同步方法的步骤，或者，所述程序或指令被所述处理器执行时实现如权利要求18至31任一项所述的数据包序号同步方法的步骤。
  35. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1至17任一项所述的数据包序号同步方法，或者实现如权利要求18至31任一项所述的数据包序号同步方法的步骤。
PCT/CN2023/092425 2022-05-09 2023-05-06 数据包序号同步方法、装置及通信设备 Ceased WO2023217008A1 (zh)

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