WO2020151585A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2020151585A1
WO2020151585A1 PCT/CN2020/072647 CN2020072647W WO2020151585A1 WO 2020151585 A1 WO2020151585 A1 WO 2020151585A1 CN 2020072647 W CN2020072647 W CN 2020072647W WO 2020151585 A1 WO2020151585 A1 WO 2020151585A1
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WO
WIPO (PCT)
Prior art keywords
transmission node
network device
data
access network
node device
Prior art date
Application number
PCT/CN2020/072647
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English (en)
Chinese (zh)
Inventor
耿婷婷
严乐
曾清海
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2020151585A1 publication Critical patent/WO2020151585A1/fr

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    • 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
    • H04W28/0289—Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • This application relates to the field of communications, and more specifically, to a method and device for data transmission.
  • the data of the terminal device communicates with the data network (DN) through the base station and the fixed user plane function (UPF).
  • the session management function SMF
  • the network device establishes a fixed channel of the terminal device-base station-UPF-DN for the terminal device.
  • the channel between the base station and the UPF may be a general packet radio service tunneling protocol (general packet radio service tunneling protocol, GTP) channel.
  • GTP general packet radio service tunneling protocol
  • one base station may establish a GTP channel with one UPF, or multiple base stations may establish a GTP channel with the same UPF respectively.
  • multiple base stations may establish GTP channels with the same UPF, since terminal equipment can only transmit data through a fixed UPF, when the UPF service is congested, the data of the terminal equipment under the UPF will be affected. Makes the efficiency of data transmission low.
  • This application provides a data transmission method and device, which can improve the efficiency of data transmission.
  • a data transmission method which includes:
  • the access network device receives target data from the terminal device
  • the access network device determines a target transmission node device according to a selection strategy, and the selection strategy is used to select a transmission node device for sending the target data from at least two transmission node devices, and the at least two transmission node devices are connected to the connection
  • the network access device has a data channel;
  • the access network device sends the target data to the target transmission node device.
  • the access network device receives the target data, and selects a target transmission node device from at least two transmission node devices for the target data according to the selection strategy, wherein each transmission node device of the at least two transmission node devices is connected to the access node device.
  • the network access device has a data channel, so that the access network device can directly send the target data to the data network through the selected target transmission node device.
  • the target data can only use a fixed transmission node device for data transmission, causing data congestion
  • the transmission node device can be flexibly selected, thereby improving communication efficiency.
  • the access network device determining the target transmission node device according to the selection strategy includes:
  • the access network device determines the target transmission node device according to the selection strategy and the target data.
  • the access network equipment can determine the requirements of the target data, such as delay requirements, power consumption requirements, etc., so that the access network equipment selects the appropriate target transmission node equipment for the target data according to the requirements of the target data and the selection strategy, so as to go further Improve data transmission efficiency.
  • the method also includes:
  • the access network device receives the selection strategy sent by the core network device.
  • the core network device may actively send the selection policy to the access network device, or it may be sent by the core network device to the access network device upon request of the access network device.
  • the method also includes:
  • the access network device sends a request message to the core network device, where the request message carries capability information of the access network device, and the capability information is used to indicate the maximum number of connectable transmission node devices supported by the access network device;
  • the selection strategy sent by the core network device received by the access network device includes:
  • the access network device receives a response message of the request message from the core network device, and the response message carries the selection policy.
  • the core network device receives a request message sent by the access network device, the request message carries indication information of the access network device, and the indication information is used to indicate the maximum number of connectable transmission node devices supported by the access network device, or The indication information is used to indicate the capability information of the access network device to support the connection of at least two transmission node devices.
  • the core network device sends a response message of the request message to the access network device, and the response message carries the selection policy.
  • the selection strategy may include the load status of the at least two transmission node devices.
  • the transmission node device may indicate the current load status of each transmission node device in the at least two transmission node devices, or the current ability to handle the load.
  • the method also includes:
  • the access network device receives instruction information, where the instruction information is used to indicate that there is a transmission node device set in the communication system, and the transmission node device set includes the at least two transmission node devices.
  • the AMF may send first indication information to the access network device, where the first indication information is used to indicate that there is a set of transmission node devices, and the set of transmission node devices includes the at least two transmission node devices.
  • the AMF can receive a request message carrying the second indication information of the access network device, and the AMF sends the second indication information to the SMF.
  • the SMF determines the selection strategy according to the second indication information of the access network device, and communicates with the access network device through the AMF.
  • the network-connected device sends a response message carrying the selection strategy.
  • the method also includes:
  • the access network device establishes a data channel with the at least two transmission node devices.
  • the access network device may perform data transmission multiple times after establishing data channels with the at least two transmission node devices once, or it may be necessary to establish data channels with at least two transmission node devices in advance for each data transmission.
  • the data channel includes at least one of a General Packet Radio Service Tunneling Protocol channel, an Internet Protocol channel, or an Ethernet channel.
  • a data transmission method includes: a first transmission node device receives target data from an access network device, and the first transmission node device has a data channel with the at least one second transmission node device;
  • the first transmission node device determines a target transmission node device according to a selection strategy, where the selection strategy is used to select a transmission node device for sending the target data from at least one second transmission node device;
  • the first transmission node device sends the target data to the target transmission node device.
  • the first transmission node device receives target data from the access network device, and selects a suitable target transmission node device for the target data from at least two transmission node devices according to a selection strategy, wherein the first transmission node device and the at least two transmission node devices
  • the other transmission node devices in the transmission node device except the first transmission node device have a data channel, so that the first transmission node device can send the target data to the DN through the target transmission node device, thereby avoiding the data from being transmitted through fixed Congestion caused by the node device sending target data to the DN, that is, the embodiment of the present application improves the communication efficiency.
  • the first transmission node device determining the target transmission node device according to the selection strategy includes:
  • the first transmission node determines the target transmission node device according to the selection strategy and the target data.
  • the access network equipment can determine the requirements of the target data, such as delay requirements, power consumption requirements, etc., so that the access network equipment selects the appropriate target transmission node equipment for the target data according to the requirements of the target data and the selection strategy, thereby further Improve data transmission efficiency.
  • the method also includes:
  • the first transmission node device receives the selection strategy from the core network device.
  • the core network device may actively send the selection strategy to the access network device, or it may be sent by the core network device to the access network device upon request of the access network device.
  • the method also includes:
  • the first transmission node device establishes a data channel with each transmission node device of the at least two transmission node devices except the first transmission node device.
  • the first transmission node device may establish in advance a data channel with each transmission node device of the at least two transmission node devices except the first transmission node device, thereby saving data transmission delay.
  • the selection strategy may include the load status of the at least two transmission node devices.
  • the transmission node device may indicate the current load status of each transmission node device in the at least two transmission node devices, or the current ability to handle the load.
  • a device for processing system messages may be a terminal or a chip in the terminal.
  • the device has the function of realizing the foregoing first aspect and any one of its possible implementation modes. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a processing module and a transceiver module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter, and the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored by the storage module or instructions derived from other sources, so that the device executes the foregoing first aspect and any one of the possible implementation methods.
  • the chip when the device is a chip, the chip includes: a processing module.
  • the chip also includes a transceiver module.
  • the transceiver module may be an input/output interface or pin on the chip. Or circuits, etc.
  • the processing module may be a processor, for example. The processing module can execute instructions so that the chip in the terminal executes the above-mentioned first aspect and any one of the possible implementation methods.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions. Random access memory (random access memory) memory, RAM) etc.
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above All aspects of the method of program execution are integrated circuits.
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a device for processing system messages may be a network device or a chip in the network device.
  • the device has the function of realizing the above-mentioned second aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a transceiver module and a processing module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter.
  • the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example.
  • the storage module is used to store instructions.
  • the processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or from other instructions, so that the device executes the above-mentioned second aspect and various possible implementation methods.
  • the device can be a network device.
  • the chip when the device is a chip, the chip includes a transceiver module and a processing module.
  • the transceiver module may be, for example, an input/output interface, a pin, or a circuit on the chip.
  • the processing module may be a processor, for example. The processing module can execute instructions so that the chip in the terminal executes the above-mentioned second aspect and various possible implementation methods.
  • the processing module may execute instructions in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory or other types of static storage devices that can store static information and instructions, random access memory, etc.
  • the processor mentioned in any of the above may be a general-purpose central processing unit, a microprocessor, a specific application integrated circuit, or one or more integrated circuits used to control the execution of the programs of the above-mentioned methods.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the above-mentioned first aspect or any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the first aspect or any possible implementation manner thereof.
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct instructions to execute the method in the second aspect or any possible implementation manner thereof.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in the second aspect or any possible implementation manners thereof.
  • a processor configured to be coupled with a memory, and configured to execute the method in the first aspect or any possible implementation manner thereof.
  • a processor configured to be coupled with a memory and configured to execute the method in the second aspect or any possible implementation manners thereof.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is used to communicate with an external device or an internal device.
  • the processor is used to implement the first aspect or any possible implementation manner Methods.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • the processor is used to implement the method in the foregoing first aspect or any possible implementation manner thereof.
  • the chip can be integrated on the access network equipment.
  • a chip in a twelfth aspect, includes a processor and a communication interface.
  • the communication interface is used to communicate with an external device or an internal device.
  • the processor is used to implement the second aspect or any possible implementation manner Methods.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • the processor is used to implement the method in the foregoing second aspect or any possible implementation manner thereof.
  • the chip can be integrated on the core network equipment.
  • the access network device receives the target data, and selects one target transmission node device from at least two transmission node devices for the target data according to the selection strategy, wherein each of the at least two transmission node devices transmits The node device and the access network device have a data channel, so that the access network device can directly send the target data to the data network through the selected target transmission node device.
  • the target data can only be performed by a fixed transmission node device. Data transmission causes data congestion, and the embodiment of the present application can flexibly select transmission node devices, thereby improving communication efficiency.
  • Figure 1 is a schematic diagram of a communication system of the present application
  • Figure 2 is a schematic diagram of data transmission in a traditional solution
  • FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a data transmission method according to a specific embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a data transmission method according to another embodiment of the present application.
  • FIG. 6 is a schematic diagram of a data transmission method according to another specific embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a data transmission processing device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a data transmission processing device provided by an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a data transmission processing device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a data transmission processing apparatus according to an embodiment of the present application.
  • FIG. 11 shows a schematic block diagram of an apparatus for data transmission processing according to a specific embodiment of the application.
  • Fig. 12 shows a schematic block diagram of an apparatus for data transmission processing according to another specific embodiment of the application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • the terminal equipment in the embodiments of the present application may refer to user equipment (UE), access terminal equipment, subscriber units, user stations, mobile stations, mobile stations, and remote locations. Station, remote terminal equipment, mobile equipment, user terminal equipment, terminal equipment, wireless communication equipment, user agent or user device.
  • UE user equipment
  • access terminal equipment subscriber units
  • user stations mobile stations
  • mobile stations mobile stations
  • remote locations remote terminal equipment
  • mobile equipment mobile equipment
  • user terminal equipment terminal equipment
  • wireless communication equipment user agent or user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (personal digital assistant, PDA), with wireless communication Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network or future evolution of the public land mobile network (PLMN) Terminal devices, etc., are not limited in this embodiment of the present application, and the following embodiments do not distinguish this.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be implemented without relying on smartphones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to pass items through communication technology. Connect with the network to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the IOT technology can achieve massive connections, deep coverage, and power saving for terminal devices through, for example, narrowband NB technology.
  • the NB only includes one resource block (resource block, RB), that is, the bandwidth of the NB is only 180KB.
  • resource block resource block
  • terminal devices must be discrete in access. The method according to the embodiment of the present application can effectively solve the congestion problem of mass terminal devices of the IOT technology when they access the network through NB.
  • terminal equipment can also include sensors such as smart printers, train detectors, gas stations, etc.
  • the main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from access network equipment, and sending electromagnetic waves , To transmit uplink data to the access network equipment.
  • the access network device in the embodiment of the application may be a device used to communicate with terminal devices, and the access network device may be a global system for mobile communications (GSM) system or code division multiple access (code division multiple)
  • GSM global system for mobile communications
  • code division multiple code division multiple
  • the base transceiver station (BTS) in access, CDMA) can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolution of the LTE system
  • the evolved NodeB (eNB or eNodeB) can also be a wireless controller in the cloud radio access network (CRAN) scenario, or the access network equipment can be a relay station or an access point (access point).
  • CRAN cloud radio access network
  • AP can be the access point in the WLAN
  • AP can be the access point in the WLAN
  • gNB in the new radio (NR) system is not limited in this embodiment of the application.
  • the access network device provides services for the cell, and the terminal device communicates with the access network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • It can be a cell corresponding to an access network device (such as a base station).
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell ( Micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • a carrier in an LTE system or a 5G system can have multiple cells working at the same frequency at the same time.
  • the concept of the above-mentioned carrier and cell can also be considered equivalent.
  • CA carrier aggregation
  • the carrier index of the secondary carrier and the cell identification (Cell ID) of the secondary cell working on the secondary carrier will be carried at the same time.
  • the concept of carrier and cell can be regarded as equivalent.
  • the UE accessing a carrier is equivalent to accessing a cell.
  • the core network device can be connected to multiple access network devices to control the access network device, and can distribute data received from the network side (for example, the Internet) to the access network device.
  • the network side for example, the Internet
  • the access network equipment may include base stations (gNB), such as macro stations, micro base stations, indoor hotspots, and relay nodes, etc.
  • gNB base stations
  • the function is to send radio waves to terminal equipment, and on the one hand, it realizes downlink data transmission. On the other hand, it sends scheduling information to control uplink transmission, and receives radio waves sent by terminal equipment, and receives uplink data transmission.
  • the terminal device or the access network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal device or an access network device, or a functional module in the terminal device or the access network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program that can be accessed from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • Fig. 1 is a schematic diagram of a communication system of the present application, taking a 5G communication system as an example.
  • the communication system in FIG. 1 may include access and mobility management function (AMF), SMF, DN, UPF, radio access network (RAN), and UE.
  • SMF is used for session management
  • AMF is used for access and mobility management.
  • AMF, SMF, DN, and UPF are all functional descriptions of core network equipment, and base stations are functional descriptions of access network equipment.
  • the data of the terminal equipment communicates with the DN through the base station and the fixed UPF.
  • the SMF will select a fixed UPF for the terminal device and establish a fixed channel of terminal device-base station-UPF-DN, where the channel between the base station and the UPF may be a GTP channel.
  • the fixed UPF corresponds to a certain PDU session of the terminal device, and correspondingly, the above-mentioned fixed channel corresponds to a fixed channel of a certain PDU session of the terminal device.
  • one base station may establish a GTP channel with one UPF, or multiple base stations may establish a GTP channel with the same UPF respectively.
  • multiple base stations may establish GTP channels with the same UPF, since the UE can only transmit data through a fixed UPF (for example, as shown in Figure 2, UE-1 can only send the corresponding PDU session to the DN through UPF1 Data), when the service of the UPF is congested, the data of the terminal equipment under the UPF will be affected, so that the efficiency of data transmission is low.
  • FIG. 3 shows a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • the access network device receives target data from the terminal device.
  • the terminal device sends the target data to the access network device.
  • the target data received by the access network device from the terminal device may be data for the terminal device, where the target data may be service data corresponding to a protocol data unit (protocol data unit, PDU) session.
  • PDU protocol data unit
  • the target data in this embodiment may refer to service data corresponding to a PDU session.
  • the access network device determines a target transmission node device according to a selection strategy, where the selection strategy is used to select a transmission node device for sending the target data from at least two transmission node devices, and the at least two transmission node devices and
  • the access network device has a data channel.
  • At least two transmission node devices in this embodiment may be used to send service data corresponding to the same PDU session.
  • the at least two transmission node devices and the access network device have data channels corresponding to the same PDU session.
  • the access network device respectively has a data channel with at least two transmission node devices, and each time the access network device performs data transmission, it can select a target transmission node device according to the selection strategy.
  • target transmission node devices selected by the access network device for different terminal devices may be different, and the target transmission node devices selected for different data of the same terminal device may also be different, which is not limited in this application.
  • the data channels between the at least two transmission node devices and the access network device may be for the same terminal device, may be for the same PDU session service of the same terminal device, or may be for the access network device At least one terminal device of the same type of data (for example, the same type of service).
  • the data channels between the at least two transmission node devices and the access network device can transmit different types of data of the same terminal device, can also transmit the same type of data of the same terminal device, or can transmit data belonging to different terminal devices.
  • the same type of data that is, the data channel may be dedicated to terminal equipment, or dedicated to the same PDU session service of the terminal equipment, or shared by terminal equipment with the same type of data.
  • the terminal device may select the target transmission node device and the access network device from at least two transmission node devices to send uplink data to the access network device.
  • the access network device may also use the target transmission node device to send data to the terminal device.
  • other transmission node devices of the at least two transmission node devices may also be used to send downlink data, which is not limited in this application.
  • the selection strategy may indicate the load status of the transmission node device.
  • the transmission node device may indicate the current load status of each transmission node device in the at least two transmission node devices, or the current load capacity status of the transmission node device.
  • step 302 may specifically be that the access network device determines the target transmission node device according to the selection strategy and the target data.
  • the access network device can determine the requirements of the target data, such as delay requirements, power consumption requirements, etc., so that the access network device selects a suitable target transmission node device for the target data according to the requirements of the target data and the selection strategy. So as to further improve the efficiency of data transmission.
  • the transmission node device may be a UPF, that is, a data channel may be established between the UPF and the access network device.
  • the data channel may be at least one of a GTP channel, an Internet Protocol (IP) channel, or an Ethernet channel.
  • IP Internet Protocol
  • the access network device may obtain the selection strategy from the core network device.
  • the core network device sends the selection strategy.
  • the core network device may actively send the selection strategy to the access network device, or it may be sent by the core network device to the access network device upon request of the access network device.
  • the core network device receives a request message sent by the access network device, and the request message carries indication information of the access network device, and the indication information is used to indicate the information of the connected transmission node device supported by the access network device.
  • the maximum number, or, the indication information is used to indicate the capability information of the access network device to support the connection of at least two transmission node devices.
  • the core network device sends a response message of the request message to the access network device, and the response message carries the selection policy.
  • the access network device may receive first indication information sent by the core network device, where the first indication information indicates that there is a set of transmission node devices, and the set of transmission node devices includes the at least two A transmission node device.
  • the AMF may send first indication information to the access network device, where the first indication information is used to indicate that there is a set of transmission node devices, and the set of transmission node devices includes the at least two transmission node devices.
  • the AMF can receive a request message carrying the second indication information of the access network device, and the AMF sends the second indication information to the SMF.
  • the SMF determines the selection strategy according to the second indication information of the access network device, and communicates with the access network device through the AMF.
  • the network-connected device sends a response message carrying the selection strategy.
  • the SMF determines at least two transmission node devices for the access network device according to the second indication information of the access network device, and sends a response message to the access network device through the AMF to carry address information of the at least two transmission node devices , Used to establish a data channel between the access network device and the at least two transmission node devices.
  • the request information may indicate the capability information of the access network device to support the connection of at least two transmission node devices through at least one bit of second indication information.
  • the access network device executes step 302, so that the AMF can flexibly instruct the access network device to perform data transmission according to the embodiment of this application, instead of using a fixed transmission node according to the traditional solution
  • the device sends data to the DN, which improves the flexibility of data transmission.
  • the transmission node device is a UPF
  • the collection of transmission node devices may be referred to as a "UPF pool”.
  • the access network device may also establish a data channel with the at least two transmission node devices.
  • gNB1 and UPF1 establish a data channel
  • gNB1 and UPF2 establish a data channel.
  • the access network device may perform data transmission multiple times after establishing data channels with the at least two transmission node devices at one time, or it may be necessary to establish data with at least two transmission node devices in advance for each data transmission. aisle.
  • the number of transmission node devices that establish data channels with the access network device in advance may be The same can also be different, which is not limited in this application.
  • the establishment of the data channel by the access network device may be established according to the instruction of the SMF.
  • the access network device sends the target data to the target transmission node device.
  • the access network device receives target data, and selects one target transmission node device from at least two transmission node devices for the target data according to a selection strategy, wherein each transmission node device of the at least two transmission node devices It has a data channel with the access network equipment.
  • each transmission node device of the at least two transmission node devices and the data channel of the access network device correspond to the same PDU session service of the terminal device.
  • the access network device can directly send the target data to the DN through the selected target transmission node device.
  • the target data can only use a fixed transmission node device for data transmission, which causes data congestion.
  • the embodiment of the application can be flexibly selected Transmission node equipment, thereby improving communication efficiency.
  • FIG. 5 shows a schematic flowchart of a data transmission method according to another embodiment of the present application.
  • the embodiments of the present application are applied to a communication system including at least two transmission node devices, an access network device, a terminal device, and a DN.
  • a first transmission node device of the at least two transmission node devices receives target data from an access network device, and the first transmission node device and the at least two transmission node devices exclude the first transmission node device.
  • Each transmission node device outside the device has a data channel.
  • the at least two transmission node devices can form a transmission node device pool, and the first transmission node device can be connected to a data channel in the transmission node device pool.
  • Other transmission node devices have data channels.
  • each of the at least two transmission node devices can communicate with the DN.
  • the core network device may instruct the access network device to preferentially establish a data channel with the first transmission node device.
  • the first transmission node device may be a node with a concentration and distribution function (CDF).
  • CDF concentration and distribution function
  • the first transmission node device may establish in advance a data channel with each transmission node device of the at least two transmission node devices except the first transmission node device.
  • the first transmission node device is the CDF
  • the CDF establishes a data channel with UPF1
  • the CDF establishes a data channel with UPF2.
  • the first transmission node device determines a target transmission node device according to a selection strategy, where the selection strategy is used to select a transmission node device for sending target data from the at least two transmission node devices.
  • the first transmission node device selects a target transmission node device from the at least two transmission node devices for the target data according to the selection strategy.
  • the target data may be transmission data corresponding to the same PDU session service of the same terminal device.
  • target transmission node device selected by the first transmission node device may also be the first transmission node itself.
  • step 502 may specifically determine the target transmission node device according to the selection strategy and target data.
  • the first transmission node device can determine the requirements of the target data, such as delay requirements, power consumption requirements, etc., so that the first transmission node device selects a suitable target transmission node for the target data according to the requirements of the target data and the selection strategy Equipment to further improve data transmission efficiency.
  • the requirements of the target data such as delay requirements, power consumption requirements, etc.
  • the first transmission node device may obtain the selection strategy from a core network device.
  • the core network device sends the selection strategy.
  • the core network device may actively send the selection strategy to the first transmission node device, or upon request by the access network device, the core network device may send the selection strategy to the first transmission node device.
  • the core network device receives a first message sent by the access network device, where the first message carries indication information of the access network device, and the indication information is used to indicate that the access network device supports the maximum number of transmission node device pools Or, the indication information is used to indicate the capability information of the access network device to support the transmission node device pool.
  • the core network device sends a second message to the first transmission node device, where the second message carries the selection policy.
  • the access network device may receive first indication information sent by the core network device, where the first indication information indicates that there is a transfer node device pool, and the first indication information in the transfer node device pool A transmission node device has a data channel with other transmission node devices in the transmission node device pool.
  • the first message may be a request message
  • the second message is a response message of the request message
  • the AMF may send first indication information to the access network device.
  • the first indication information is used to indicate the existence of the transmission node device pool and to indicate the CD + UPF (that is, the first transmission node device pool) in the transmission node device pool. Node device).
  • the AMF can receive the first message carrying the second indication information of the access network device, the AMF sends the second indication information to the SMF, and the SMF determines the selection strategy according to the second indication information of the access network device, and sends it to the first The transmission node device sends the selection strategy.
  • the SMF determines the first transmission node device in the transmission node device pool for the access network device according to the second indication information of the access network device, and sends the addresses of the at least two transmission node devices to the first transmission node device
  • the information is used to establish a data channel between the first transmission node device and the at least two transmission node devices.
  • the request information may indicate the capability information of the access network device to support the transmission node device pool through at least one bit of second indication information.
  • the SMF may directly send the selection strategy and/or the address information of the at least two transmission node devices to the first transmission node device; or the SMF may send the selection strategy to the first transmission node device through AMF, for example, the SMF may Send the selection strategy and/or the address information of the at least two transmission node devices to the AMF, and the AMF sends the selection strategy and/or the address information of the at least two transmission node devices to the first transmission node device.
  • the first transmission node device sends target data to the target transmission node device.
  • the first transmission node device receives target data from the access network device, and selects a suitable target transmission node device for the target data from at least two transmission node devices according to a selection strategy, where the first transmission node device and the At least two transmission node devices other than the first transmission node device have a data channel, so that the first transmission node device can send the target data to the DN through the target transmission node device, thereby avoiding data passing through
  • the congestion caused by the fixed transmission node device sending target data to the DN that is, the embodiment of the present application improves the communication efficiency.
  • the first transmission node device may directly send the target data to the DN.
  • FIG. 7 shows a schematic block diagram of a data transmission apparatus 700 according to an embodiment of the present application.
  • the apparatus 700 may correspond to the terminal device in the embodiment shown in FIG. 3, and may have any function of the terminal device in the method.
  • the device 700 includes a transceiver module 710 and a processing module 720.
  • the transceiver module 710 is configured to receive target data from a terminal device
  • the processing module 720 is configured to determine a target transmission node device according to a selection strategy, where the selection strategy is used to select a transmission node device for sending the target data from at least two transmission node devices, and the at least two transmission node devices and the The access network equipment has a data channel;
  • the transceiver module 710 is also configured to send the target data to the target transmission node device.
  • processing module 720 is specifically configured to:
  • the target transmission node device is determined.
  • the transceiver module 710 is further configured to receive the selection strategy sent by the core network device.
  • the transceiver module 710 is further configured to send a first message to the core network device, where the first message carries capability information of the access network device, and the capability information is used to indicate the connection capability supported by the access network device.
  • transceiver module 710 is specifically used for:
  • the selection strategy is received from the core network device.
  • the transceiver module 710 is further configured to send a request message to the core network device, the request message carrying capability information of the access network device, and the capability information is used to indicate the connectable transmission supported by the access network device.
  • transceiver module 710 is specifically used for:
  • a response message of the request message is received from the core network device, and the response message carries the selection policy.
  • the selection strategy may include the load status of the at least two transmission node devices.
  • the transceiver module 710 is further configured to receive indication information, which is used to indicate that there is a set of transmission node devices in the communication system, and the set of transmission node devices includes the at least two transmission node devices.
  • the processing module 720 is further configured to establish a data channel with the at least two transmission node devices.
  • the data channel includes at least one of a General Packet Radio Service Tunneling Protocol channel, an Internet Protocol channel, or an Ethernet channel.
  • FIG. 8 shows a schematic block diagram of an apparatus 800 for data transmission according to an embodiment of the present application.
  • the apparatus 800 may be the terminal device described in FIG. 1 and the terminal device described in FIG. 3.
  • the device can adopt the hardware architecture shown in FIG. 8.
  • the device may include a processor 810 and a transceiver 820.
  • the device may also include a memory 830.
  • the processor 810, the transceiver 820, and the memory 830 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 620 in FIG. 7 may be implemented by the processor 810, and the related functions implemented by the transceiver module 710 may be implemented by the processor 810 controlling the transceiver 820.
  • the processor 810 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), dedicated processor, or one or more An integrated circuit used to implement the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control devices (such as base stations, terminal equipment, or chips), execute software programs, and process data in the software programs.
  • the processor 810 may include one or more processors, for example, include one or more central processing units (central processing unit, CPU).
  • CPU central processing unit
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 820 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 830 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read-only memory, EPROM), and read-only memory.
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable memory
  • read-only memory EPROM
  • read-only memory EPROM
  • CD-ROM compact disc
  • the memory 830 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 810.
  • the processor 810 is configured to control the transceiver to perform information transmission with the network device.
  • the processor 810 is configured to control the transceiver to perform information transmission with the network device.
  • FIG. 8 only shows a simplified design of the data transmission device.
  • the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement this application are protected by this application. Within range.
  • the apparatus 800 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 810 in the terminal device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips that implement related functions.
  • the chip may optionally include one or more memories for storing program codes. When the codes are executed, the processor realizes corresponding functions.
  • the apparatus 800 may further include an output device and an input device.
  • the output device communicates with the processor 810 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 601 and can receive user input in various ways.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 9 shows a schematic block diagram of a data transmission apparatus 900 according to an embodiment of the present application.
  • the apparatus 900 may correspond to the network device in the embodiment shown in FIG. 4, and may have any function of the network device in the method.
  • the device 900 includes a transceiver module 910 and a processing module 920.
  • the transceiver module 910 is configured to receive target data from an access network device, where the first transmission node device and the at least one second transmission node device have a data channel;
  • the processing module 920 is configured to determine a target transmission node device according to a selection strategy, where the selection strategy is used to select a transmission node device for sending the target data from at least one second transmission node device;
  • the transceiver module 910 is also used to send the target data to the target transmission node device.
  • processing module is specifically used for:
  • the target transmission node device is determined.
  • the transceiver module is further configured to receive the selection strategy from the core network device.
  • the processing module is further configured to establish a data channel with each of the at least two transmission node devices except the first transmission node device.
  • the selection strategy may include the load status of the at least two transmission node devices.
  • FIG. 10 shows an apparatus 1000 for data transmission provided by an embodiment of the present application.
  • the apparatus 1000 may be the access network device described in FIG. 3.
  • the device can adopt the hardware architecture shown in FIG. 10.
  • the device may include a processor 1010 and a transceiver 1020.
  • the device may also include a memory 1030.
  • the processor 1010, the transceiver 1020, and the memory 1030 communicate with each other through an internal connection path.
  • the related functions implemented by the processing module 1020 in FIG. 10 can be implemented by the processor 1010, and the related functions implemented by the transceiver module 1010 can be implemented by the processor 1010 controlling the transceiver 1020.
  • the processor 1010 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), dedicated processor, or one or more It is an integrated circuit that implements the technical solutions of the embodiments of the present application.
  • a processor may refer to one or more devices, circuits, and/or processing cores for processing data (for example, computer program instructions).
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control the device (for example, base station, terminal equipment, or chip, etc.), execute software programs, and process data of the software programs.
  • the processor 1010 may include one or more processors, such as one or more central processing units (central processing unit, CPU).
  • processors such as one or more central processing units (central processing unit, CPU).
  • CPU central processing unit
  • the CPU may be a single processor.
  • the core CPU can also be a multi-core CPU.
  • the transceiver 1020 is used to send and receive data and/or signals, and to receive data and/or signals.
  • the transceiver may include a transmitter and a receiver, the transmitter is used to send data and/or signals, and the receiver is used to receive data and/or signals.
  • the memory 1030 includes but is not limited to random access memory (RAM), read-only memory (ROM), erasable programmable memory (erasable read only memory, EPROM), read-only memory A compact disc (read-only memory, CD-ROM).
  • RAM random access memory
  • ROM read-only memory
  • EPROM erasable programmable memory
  • read-only memory A compact disc read-only memory
  • CD-ROM compact disc
  • the memory 1030 is used to store program codes and data of the terminal device, and may be a separate device or integrated in the processor 1010.
  • the processor 1010 is used to control the transceiver to perform information transmission with the network device.
  • the processor 1010 is used to control the transceiver to perform information transmission with the network device.
  • the apparatus 1000 may further include an output device and an input device.
  • the output device communicates with the processor 1010 and can display information in a variety of ways.
  • the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector, etc.
  • the input device communicates with the processor 601 and can receive user input in various ways.
  • the input device can be a mouse, a keyboard, a touch screen device, or a sensor device.
  • FIG. 10 only shows a simplified design of the device for data transmission.
  • the device can also contain other necessary components, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminal devices that can implement this application are protected by this application. Within range.
  • the device 1000 may be a chip, for example, a communication chip that can be used in a terminal device to implement related functions of the processor 1010 in the terminal device.
  • the chip can be a field programmable gate array, a dedicated integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit, a microcontroller, and a programmable controller or other integrated chips that implement related functions.
  • the chip may optionally include one or more memories for storing program codes, and when the codes are executed, the processor realizes corresponding functions.
  • the embodiment of the present application also provides a device, which may be a terminal device or a circuit.
  • the device can be used to perform the actions performed by the terminal device in the foregoing method embodiments.
  • the processing device 1300 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem.
  • the communication device in this embodiment can be used as the modulation subsystem therein.
  • the modulation subsystem may include a processor 1303 and an interface 1304.
  • the processor 1303 completes the function of the aforementioned processing module 610
  • the interface 1304 completes the function of the aforementioned transceiver module 620.
  • the modulation subsystem includes a memory 1306, a processor 1303, and a program stored in the memory and capable of running on the processor. When the processor executes the program, the program described in the first to fifth embodiments is implemented. method.
  • the memory 1306 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 1300, as long as the memory 1306 can be connected to the The processor 1303 is fine.
  • the network device may be as shown in FIG. 12, and the device 1400 includes one or more radio frequency units, such as a remote radio unit (RRU) 1410 and one or more basebands A unit (baseband unit, BBU) (also referred to as a digital unit, DU) 1420.
  • the RRU 1410 may be called a transceiver module, which corresponds to the transceiver module 910 in FIG. 9.
  • the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 1412 ⁇ RF unit 1413.
  • the RRU 1410 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 1410 part of the BBU is mainly used to perform baseband processing and control the base station.
  • the RRU 1410 and the BBU 1420 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 1420 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 920 in FIG. 9, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing module
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.
  • the BBU 1420 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an LTE network) of a single access standard, or support different access standards. Wireless access network (such as LTE network, 5G network or other networks).
  • the BBU 1420 also includes a memory 1421 and a processor 1422.
  • the memory 1421 is used to store necessary instructions and data.
  • the processor 1422 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 1421 and the processor 1422 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • a computer-readable storage medium is provided, and an instruction is stored thereon, and the method in the foregoing method embodiment is executed when the instruction is executed.
  • a computer program product containing instructions is provided, and when the instructions are executed, the method in the foregoing method embodiment is executed.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium can be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk, SSD)) etc.
  • the processor may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA ready-made programmable gate array
  • Programming logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • 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, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous link dynamic random access memory synchronous link DRAM, SLDRAM
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated object, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
  • at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, a processor, an object, an executable file, an execution thread, a program, and/or a computer running on a processor.
  • the application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • a component can be based on a signal having one or more data packets (for example, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • data packets for example, data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application 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, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or an access network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

La présente invention concerne un procédé et un appareil de transmission de données. Un dispositif de réseau d'accès reçoit des données cibles et sélectionne en fonction d'une stratégie de sélection un dispositif nœud de transmission cible associé aux données cibles parmi au moins deux dispositifs nœuds de transmission, un canal de données existant entre chacun desdits au moins deux dispositifs nœuds de transmission et le dispositif de réseau d'accès, de sorte que le dispositif de réseau d'accès peut envoyer directement les données cibles au réseau de données au moyen du dispositif nœud de transmission cible sélectionné. Dans une solution classique, les données cibles ne peuvent être transmises qu'en utilisant un dispositif nœud de transmission fixe. Il en résulte un encombrement des données. Au contraire, dans les modes de réalisation de la présente invention, un dispositif nœud de transmission peut être sélectionné de manière flexible. Il en résulte une meilleure efficacité de communication.
PCT/CN2020/072647 2019-01-23 2020-01-17 Procédé et appareil de transmission de données WO2020151585A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910063625.5 2019-01-23
CN201910063625.5A CN111479292B (zh) 2019-01-23 2019-01-23 数据传输的方法和装置

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WO2020151585A1 true WO2020151585A1 (fr) 2020-07-30

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