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WO2019196811A1 - Procédé de communication, et appareil associé - Google Patents

Procédé de communication, et appareil associé Download PDF

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Publication number
WO2019196811A1
WO2019196811A1 PCT/CN2019/081839 CN2019081839W WO2019196811A1 WO 2019196811 A1 WO2019196811 A1 WO 2019196811A1 CN 2019081839 W CN2019081839 W CN 2019081839W WO 2019196811 A1 WO2019196811 A1 WO 2019196811A1
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WO
WIPO (PCT)
Prior art keywords
network element
function network
terminal
user plane
group identifier
Prior art date
Application number
PCT/CN2019/081839
Other languages
English (en)
Chinese (zh)
Inventor
周汉
李汉成
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019196811A1 publication Critical patent/WO2019196811A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications

Definitions

  • the present application relates to the field of communications and, more particularly, to a communication method and related apparatus.
  • a session management function (SMF) network element is allocated to the terminal.
  • IP Internet Protocol
  • UPF user plane function
  • the SMF network element After the SMF network element learns that the UPF network element is faulty or overloaded, the SMF network element selects a new UPF network element that can replace the UPF network element, and reconstructs the faulty or overloaded UPF network element on the new UPF network element. PDU session.
  • the SMF needs to send a PDU session creation request message and a PDU session update message to the new UPF network element and the access network (AN) of the UE, respectively.
  • the new UPF network element creates a PDU session of the UE according to the session creation request message, and the AN updates the N3 interface IP address in the UE context according to the PDU session update message.
  • the SMF network element needs to send a PDU session update message to the AN for each PDU session on the faulty or overloaded UPF network element to update the N3 interface IP address of the UPF network element recorded in the UE context. This leads to a large signaling overhead.
  • the present application provides a communication method and a communication device, which facilitates more convenient management of address information of a user plane function network element.
  • the present application provides a method of communication.
  • the communication method includes: the tunnel endpoint network element receives the first message from the session management function network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, And configured to create a packet data unit session for the first terminal; the tunnel endpoint network element generates a context of the first terminal according to the first message, and records, in the context of the first terminal, the group identifier of the first terminal as the first group identifier. And recording the address information of the user plane function network element of the first terminal as the first address information.
  • the tunnel endpoint network element receives the first message from the session management function network element, where the first message includes not only the address information of the user plane function network element but also the group identifier information of the first terminal, which is helpful for subsequent In the process, the address information of the user plane function network element of the first terminal is more conveniently managed.
  • the communications method further includes: the tunnel endpoint network element receiving the second message from the session management function network element, where the second message includes the first group identifier and the second user
  • the second address information of the surface function network element is used to request to modify the address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier to the second address information;
  • the network element determines the first terminal according to the first group identifier in the second message, and modifies the first address information in the address information of the user plane function network element of the first terminal to the second address information.
  • the tunnel endpoint network element receives the second message from the session management function network element, and batch updates the address information of the user plane function network element of the one or more terminals corresponding to the first group identifier according to the second message, thereby The management convenience of the address information of the user plane function network element of the terminal can be improved.
  • the second message is a packet data unit session modification request message.
  • the first message is a packet data unit session creation request message.
  • the present application proposes a communication method.
  • the communication method includes: the tunnel endpoint network element receives the second message from the session management function network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, where the request is to be the first
  • the address information of the user plane function network element of the one or more terminals in the first group corresponding to the group identifier is modified to the second address information;
  • the tunnel endpoint network element records the address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier as the second address information according to the second message.
  • the tunnel endpoint network element receives the second message from the session management network element, and modifies the address information of the user plane function network element of the one or more terminals to the second address information according to the second message, thereby improving the pair.
  • the user plane function of the terminal is convenient for managing the address information of the network element.
  • the second message is a packet data unit modification request message.
  • one or more terminals in the first group include the first terminal.
  • the communication method further includes: before the tunnel endpoint network element receives the second message from the session management function network element, the communication method further includes:
  • the tunnel endpoint network element receives the first message from the session management function network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, where the request is for the first a terminal creates a packet data unit session;
  • the tunnel endpoint network element generates a context of the first terminal according to the first message, and records, in the context of the first terminal, the group identifier of the first terminal as the first group identifier, and records the user plane function network element of the first terminal.
  • the address information is the first address information.
  • the tunnel end network element records, according to the second message, the address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier as the second address information, including:
  • the tunnel endpoint network element modifies the first address information in the address information of the user plane function network element of the first terminal to the second address information according to the second message.
  • the tunnel endpoint network element first receives the first group identifier of the first terminal from the session management function network element, thereby facilitating the tunnel endpoint network element to associate the first group identifier with the second message according to the second message.
  • the address information of the user plane function network element of the plurality of terminals is updated to the second address information.
  • the first message is a packet data unit session creation request message.
  • the present application provides a communication method.
  • the communication method includes: the session management function network element determines that a packet data unit session needs to be created for the first terminal; the session management function network element learns the first user plane function network element of the first terminal; and the session management function network element learns the first terminal a first group identifier; the session management function network element sends a first message to the tunnel endpoint network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element For requesting to create a packet data unit session for the first terminal.
  • the session management function network element sends a first message to the tunnel endpoint network element, where the first message includes not only the address information of the user plane function network element but also the group identifier information of the first terminal, which is helpful for subsequent In the process, the address information of the user plane function network element of the first terminal is more conveniently managed.
  • the first message is a packet data unit session creation request message.
  • the session management function network element learns the first group identifier of the first terminal, including:
  • the session management function network element obtains address information of the first terminal.
  • the session management function network element determines, according to the address information of the first terminal, that the address of the first terminal belongs to the first address segment;
  • the session management function network element determines the first group identity according to the first address segment.
  • the session management function network element learns the first group identifier of the first terminal, including:
  • the session management function network element receives the first indication information from the first user plane function network element, where the first indication information is used to indicate that the group identifier of the first terminal is the first group identifier;
  • the session management function network element determines the first group identifier according to the first indication information.
  • the communication method further includes:
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element;
  • the session management function network element learns the first group identifier, where the first group identifier corresponds to the first address segment;
  • the session management function network element sends a second message to the tunnel endpoint network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, and is configured to request that the first group identifier is corresponding.
  • the address information of the user plane function network element of one or more terminals in the first group is modified to the second address information.
  • the session management function network element sends a second message to the tunnel endpoint network element, so that the tunnel endpoint network element can batch update the user plane function network element of one or more terminals corresponding to the first group identifier according to the second message.
  • the address information can improve the management convenience of the address information of the user plane function network element of the terminal.
  • the second message is a packet data unit session modification request message.
  • the session management function network element learns the first group identifier, including: the session management function network element is determined according to the first address segment The first group identifier corresponding to an address segment.
  • the session management function network element learns the first group identifier, including: the session management function network element records the context of the first terminal The group identity is determined to be the first group identity.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user.
  • Surface function network elements including:
  • the session management function network element determines that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element according to the load information of the user plane function network element currently associated with the first address segment.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user.
  • Surface function network elements including:
  • the session management function network element receives the second indication information from the first network element, where the second indication information is used to indicate that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element;
  • the session management function network element determines, according to the second indication information, that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element.
  • the first network element may be a network function storage network element or an operation management and maintenance system network element.
  • the first address segment corresponds to multiple group identifiers
  • the multiple group identifiers include the first group identifier .
  • the present application provides a communication method.
  • the communication method includes:
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element;
  • the session management function network element learns the first group identifier, where the first group identifier corresponds to the first address segment;
  • the session management function network element sends a second message to the tunnel endpoint network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, and is configured to request that the first group identifier is corresponding.
  • the address information of the user plane function network element of one or more terminals in the first group is modified to the second address information.
  • the session management function network element sends a second message to the tunnel endpoint network element, so that the tunnel endpoint network element can modify the address information of the user plane function network element of one or more terminals to the second address according to the second message.
  • the information can improve the convenience of managing the address information of the user plane function network element of the terminal.
  • the second message is a packet data unit modification request message.
  • the session management function network element learns the first group identifier, including:
  • the session management function network element determines the first group identifier corresponding to the first address segment according to the first address segment.
  • the session management function network element learns the first group identifier, including:
  • the session management function network element determines the group identity recorded in the context of the first terminal as the first group identity.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified.
  • the second user plane function network element includes:
  • the session management function network element determines that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element according to the load information of the user plane function network element currently associated with the first address segment.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified.
  • the second user plane function network element includes:
  • the session management function network element receives the second indication information from the first network element, where the second indication information is used to indicate that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element;
  • the session management function network element determines, according to the second indication information, that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element.
  • the one or more terminals in the first group include the first terminal.
  • the communication method further includes: before the session management function network element sends the second message to the tunnel endpoint network element, the communication method further includes:
  • the session management function network element determines that a packet data unit session needs to be created for the first terminal
  • the session management function network element learns the first user plane function network element of the first terminal
  • the session management function network element learns the first group identifier of the first terminal
  • the session management function network element sends a first message to the tunnel endpoint network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, where the request is for the first A terminal creates a packet data unit session.
  • the session management function network element first sends the first group identifier of the first terminal to the tunnel endpoint network element, thereby facilitating the tunnel endpoint network element to associate one or the first group identifier according to the second message.
  • the address information of the user plane function network element of the plurality of terminals is updated to the second address information.
  • the first message is a packet data unit session creation request message.
  • the session management function network element learns the first group identifier of the first terminal, including:
  • the session management function network element obtains address information of the first terminal.
  • the session management function network element determines, according to the address information of the first terminal, that the address of the first terminal belongs to the first address segment;
  • the session management function network element determines the first group identity according to the first address segment.
  • the session management function network element learns the first group identifier of the first terminal, including:
  • the session management function network element receives the first indication information from the first user plane function network element, where the first indication information is used to indicate that the group identifier of the first terminal is the first group identifier;
  • the session management function network element determines the first group identifier according to the first indication information.
  • the first address segment corresponds to multiple group identifiers, and the multiple group identifiers include the first group identifier.
  • the first address segment corresponds to multiple group identifiers
  • the multiple group identifiers include the first group identifier .
  • the present application provides a communication method.
  • the communication method includes: the user plane function network element determines address information of the first terminal; the user plane function network element determines, according to the address information of the first terminal, the first group identifier of the first terminal, where the address of the first terminal belongs The address segment has a corresponding relationship with the first group identifier; the user plane function network element sends the first group identifier to the session management function network element.
  • the user plane function network element allocates a group identifier to the first terminal, which facilitates the management of the address information of the user plane function network element of the first terminal according to the first group identifier of the first terminal in the subsequent process.
  • the first address segment corresponds to multiple group identifiers
  • the multiple group identifiers include the first group identifier
  • the present application provides a communication method.
  • the communication method includes: the first network element determines that the terminal in the first address segment is served by the second user plane function network element; the first network element sends the second indication information to the session management function network element, where the second indication information is used to indicate The terminal in the first address segment is served by the second user plane function network element.
  • the first network element determines that the terminal in the first address segment is served by the second user plane function network element, and includes: the first network element is configured according to the second user plane function network element.
  • the load information determines that the terminal in the first address segment is served by the second user plane function network element.
  • the first network element is a network function storage network element or an operation management and maintenance system network element.
  • the present application provides a communication method.
  • the communication method includes:
  • the first network element learns that the user plane function network element is online
  • the first network element allocates a TEID segment to the user plane function network element, and sends a fourth message to the session management function network element, where the fourth message includes a TEID segment.
  • the first network element allocates a TEID segment to the user plane function network element, including:
  • the first network element allocates a corresponding TEID segment to the session management function network element that subscribes to the user plane function network element state.
  • the third message is a user plane function network element status subscription message
  • the fourth message is a user plane function network element status notification message.
  • the first network element is a network function storage network element or an operation management and maintenance system network element.
  • the application provides a communication device.
  • the communication device comprises means for performing the communication method of any of the first to seventh aspects.
  • the modules included in the communication device can be implemented in software and/or hardware.
  • the application provides a tunnel endpoint network element.
  • the tunnel endpoint network element includes a processor and a receiver.
  • the processor is used to execute the program.
  • the processor and the receiver implement the communication method of the first aspect or the second aspect when the processor executes the code.
  • the tunnel endpoint network element may further include a transmitter.
  • the sender is used to send information.
  • the tunnel endpoint network element may further include a memory.
  • Memory is used to store programs and data.
  • the application provides a session management function network element.
  • the session management function network element includes a processor and a transceiver.
  • the processor is used to execute the program.
  • the processor and the transceiver implement the communication method of the third aspect or the fourth aspect when the processor executes the code.
  • the session management function network element may further include a memory.
  • Memory is used to store programs and data.
  • the application provides a user plane function network element.
  • the user plane function network element includes a processor and a transceiver.
  • the processor is used to execute the program.
  • the processor and the transceiver implement the communication method in the fifth aspect.
  • the user plane function network element may further include a memory.
  • Memory is used to store programs and data.
  • the application provides a communication network element.
  • the communication network element includes a processor and a transceiver.
  • the processor is used to execute the program.
  • the processor and the transceiver implement the communication method in the sixth aspect or the seventh aspect when the processor executes the code.
  • the communication network element may further comprise a memory.
  • Memory is used to store programs and data.
  • the application provides a computer readable storage medium.
  • Program code for communication device or tunnel endpoint network element execution is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of the first aspect or the second aspect.
  • the application provides a computer readable storage medium.
  • Program code for execution of a communication device or session management function network element is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of the third aspect or the fourth aspect.
  • the application provides a computer readable storage medium.
  • Program code for communication device or user plane function network element execution is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method in the fifth aspect.
  • the application provides a computer readable storage medium.
  • Program code for communication device or communication network element execution is stored in the computer readable storage medium.
  • the program code includes instructions for performing the communication method of the sixth aspect or the seventh aspect.
  • the application provides a computer program product comprising instructions.
  • the computer program product is run on a communication device or tunnel endpoint network element, the communication device or tunnel endpoint network element is caused to perform the communication method of the first aspect or the second aspect.
  • the application provides a computer program product comprising instructions.
  • the communication device or session management function network element causes the communication device or the session management function network element to perform the communication method of the third aspect or the fourth aspect when the computer program product is run on the communication device or the session management function network element.
  • the present application provides a computer program product comprising instructions.
  • the computer program product runs on the communication device or the user plane function network element, the communication device or the user plane function network element is caused to perform the communication method in the fifth aspect.
  • the application provides a computer program product comprising instructions.
  • the computer program product is run on a communication device or communication network element, the communication device or communication network element is caused to perform the communication method of the sixth aspect or the seventh aspect.
  • the present application provides a system chip, the system chip includes an input and output interface, at least one processor, at least one memory, and a bus, the at least one memory is configured to store an instruction, and the at least one processor is configured to invoke The at least one memory instruction to perform the operation of the communication method in any one of the first to seventh aspects.
  • the present application provides a communication system, where the communication system includes at least one of the following: a tunnel endpoint network element in the ninth aspect, a session management function network element in the tenth aspect, and an eleventh aspect User plane function network element and communication network element in the twelfth aspect.
  • the communication system may further include other devices, such as terminal devices, that interact with the network element in the solution provided by the embodiment of the present application.
  • FIG. 1 is a schematic architectural diagram of a communication system to which a communication method of an embodiment of the present application can be applied;
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a communication method according to another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a communication apparatus according to another embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system to which a communication method of an embodiment of the present application can be applied.
  • the communication system shown in FIG. 1 may include a terminal device 110, an access network device 120, an access and mobility management function network element 130, a session management function network element 140, a user plane function network element 151, and a user plane function network element. 152.
  • Data network 160 may include a terminal device 110, an access network device 120, an access and mobility management function network element 130, a session management function network element 140, a user plane function network element 151, and a user plane function network element. 152.
  • the communication system shown in FIG. 1 may further include a network function storage function network element 170, and an operation management and maintenance system network element 180.
  • the network formed by the access and mobility management function network element 130, the session management function network element 140, the user plane function network element 151, and the user plane function network element 152 may be referred to as a core network.
  • the session management function network element 140 can manage a plurality of user plane function network elements, such as a user plane function network element 151 and a user plane function network element 152.
  • the terminal device can communicate with one or more core networks via the AN device.
  • a terminal device may be referred to as an access terminal, a terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless network device, a user agent, or a user device.
  • the terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld with wireless communication capabilities.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Terminal equipment can be deployed on land, indoors or outdoors, hand-held or on-board; it can also be deployed on the water (such as ships); it can also be deployed in the air (such as airplanes, balloons, satellites, etc.).
  • the access network (AN) device may be a radio access network (RAN) device.
  • RAN radio access network
  • An example of a RAN device is a base station (BS).
  • a base station also referred to as a base station device, is a device that accesses a terminal device to a wireless network, including but not limited to: a transmission reception point (TRP), a 5G Node B (gNB), and an evolved Node B.
  • TRP transmission reception point
  • gNB 5G Node B
  • eNB evolved Node B
  • RNC radio network controller
  • node B node B
  • BSC base station controller
  • BTS base transceiver station
  • a home base station for example, home evolved node B, or home node B, HNB
  • BBU base band unit
  • AP Wifi access point
  • pico small base station device
  • base stations are not limited herein.
  • the names of devices with base station functions may vary.
  • base stations the foregoing devices for providing wireless communication functions to terminals are collectively referred to as base stations.
  • the user plane function network element has the functions of packet forwarding, encapsulation, and statistics of the terminal device.
  • the user plane function network element may be a UPF network element.
  • the user plane function network element may still be a UPF network element, or may have other names, which is not limited in this application.
  • the access and mobility management function network element is responsible for access and mobility management of the terminal device. For example, it is responsible for terminal device location update, terminal device registration network, or terminal device switching.
  • the access and mobility management function network element may be an access and mobility management function (AMF) network element.
  • AMF access and mobility management function
  • the access and mobility management function network element may still be an AMF network element, or may have other names, which is not limited in this application.
  • the session management function network element is responsible for the selection, reselection of the user plane function network element, the allocation of the internet protocol (IP) address, etc., and can also be responsible for the establishment, modification and release of the session.
  • the session management function network element may be an SMF network element.
  • the session management function network element may still be an SMF network element, or may have other names, which is not limited in this application.
  • the network function storage function network element is responsible for controlling the registration of the surface function network element and the user plane function network element, and the service discovery function.
  • the network function storage function network element may be a NRF (network function repository function) network element.
  • the network function storage function network element may still be an NRF network element, or may have other names, which is not limited in this application.
  • the operation management and maintenance system NE is responsible for the operation, management, and maintenance functions of each NE.
  • the operation management and maintenance system network element may be an OAM (operations administration and maintenance) network element.
  • OAM operations administration and maintenance
  • the operation management and maintenance system network element may still be an OAM network element, or may have other names, which is not limited in this application.
  • a data network refers to a carrier network that provides data transmission services for terminal devices.
  • the data network may be a network that provides services such as IP multi-media (IMS), Internet services, and the like.
  • IMS IP multi-media
  • the data network can be a DN (data network).
  • the data network may still be referred to as a DN, or may have other names, which are not limited in this application.
  • the above functions can be either a network component in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform).
  • a communication system to which the communication method of the embodiment of the present application can be applied may include more or fewer network elements or devices.
  • the device or network element in FIG. 1 may be hardware, or may be functionally divided software or a combination of the two.
  • the devices or network elements in Figure 1 can communicate with other devices or network elements.
  • the device in Figure 1 can have other names.
  • the session management function network element 140 can send the N3 interface IP address of the user plane function network element 151 to the access network device 120 to facilitate access.
  • the network device 120 transmits the service data of the terminal device 10 to the user plane function network element 151 according to the N3 interface IP address.
  • the session management function network element 140 may select the user plane function network element 152 to replace the user plane function network element 151.
  • the session management function network element 140 transmits the user plane function network element 152 to the access network device 120 through the access and mobility management function network element 130 for each PDU session on the user plane function network element 151. IP address of the N3 interface.
  • the method of updating the N3 interface IP address of the user plane function network element reduces the convenience of the session management function network element 140 for managing the address information of the user plane function network element on the access network device 120.
  • the present application proposes a communication method, which helps to more conveniently manage the address information of the user plane function network element on the access network device.
  • FIG. 2 a schematic flowchart of a communication method according to an embodiment of the present application is shown in FIG. 2.
  • the communication method shown in FIG. 2 includes S201, S202, S203, S204, and S205.
  • the session management function network element determines that a packet data unit session needs to be created for the first terminal.
  • the session management function network element may be the session management function network element 140 in FIG.
  • the first terminal may be the terminal device 110 in FIG.
  • the session management function network element may determine that a PDU session needs to be created for the first terminal.
  • the session management function network element learns the first user plane function network element of the first terminal.
  • the first user plane function network element may be the user plane function network element 151 or the user plane function network element 152 in FIG. 1 .
  • the session management function network element learns the first user plane function network element of the first terminal, which can be understood as: the session management function network element learns that the first terminal service user interface function network element can be the first user plane function network element.
  • the session management function network element learns that the first terminal service user interface function network element can be the first user plane function network element.
  • reference may be made to the implementation manner of the user interface function network element of the session management function network element in the prior art, and details are not described herein again.
  • the session management function network element learns the first group identifier of the first terminal.
  • the first group identifier is a group identifier of at least one terminal.
  • the first terminal is included in the at least one terminal.
  • At least one terminal may also be referred to as one or more terminals.
  • the session management function network element learns the first group identifier of the first terminal, which can be understood as: the session management function network element learns that the group identifier of the first terminal is the first group identifier.
  • the session management function network element learns that the first group identifier of the first terminal may include: the session management function network element itself allocates the first group identifier to the first terminal.
  • the session management function network element obtains the address information of the first terminal; the session management function network element determines, according to the address information of the first terminal, that the address of the first terminal belongs to the first address segment; the session management function network element is based on the first address segment.
  • the first group identifier is determined, and the first address segment has a corresponding relationship with the first group identifier.
  • the address of the first terminal may be allocated by the network element of the session management function to the first terminal, or may be sent to the SMF network element after the other network element is allocated to the first terminal.
  • the session management function network element learns that the first group identifier of the first terminal may include: the user plane function network element (for example, the first user plane function network element) allocates the first group to the first terminal.
  • the group identifier is sent to the session management function network element, where the first indication information is used to indicate that the group identifier of the first terminal is the first group identifier, and the session management function network element is received from the user plane function network element.
  • An indication information is determined, and the first group identifier of the first terminal is determined according to the first indication information.
  • the session management function network element sends a first message to the tunnel endpoint network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, for requesting Create a packet data unit session for the first terminal.
  • the tunnel endpoint network element receives the first message from the session management function network element.
  • the tunnel endpoint (TE) network element may be the access network device 120 in FIG. 1, or may be the user plane function network element 151 or the user plane function network element 152 in FIG.
  • the identifier of the terminal is used to identify the terminal, and the specific form is not limited.
  • the identifier of the terminal may be in the form of an N2 connection identifier, an IMSI, an external identifier of the terminal, an internal identifier of the terminal, a permanent identifier of the terminal, or a temporary identifier of the terminal, and the like.
  • different network element devices may convert the form of the identifier of the terminal, but the identifiers of different forms of the terminal may be used to identify the terminal. That is to say, regardless of the form conversion, an identifier that can distinguish the terminal from other terminals can be referred to as an identifier of the terminal.
  • the first address information of the first user plane function network element may be the N3 interface IP address information of the first user plane function network element.
  • the first message may be a PDU session establish request message.
  • the tunnel endpoint network element generates a context of the first terminal according to the first message, and records, in the context of the first terminal, the group identifier of the first terminal as the first group identifier, and records the user plane function network of the first terminal.
  • the address information of the element is the first address information.
  • the context of the first terminal may be the session context of the first terminal.
  • the session management function network element notifies the tunnel endpoint network element of the address information of the first user plane function network element that can be served by the first terminal by using the first message, so that the tunnel endpoint network element can be based on the address information. Transmit business data for the first terminal.
  • the session management function network element notifies the tunnel end network element to the first group identifier allocated by the first terminal by using the first message, which is helpful to the session management function network element in the subsequent process, according to the first group of the first terminal
  • the group identifier manages the address information of the user plane function network element serving the first terminal.
  • FIG. 3 A schematic flowchart of a communication method of another embodiment of the present application is shown in FIG. 3.
  • the communication method shown in FIG. 3 includes S301, S302, S303, and S304.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element.
  • the session management function network element 140 learns that the user plane function network element associated with the first address segment needs to be modified or updated from the user plane function network element 151 to the user plane function network element 152.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element, and the method includes: the session management function network element receives from the first network element.
  • the second indication information is used to indicate that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element; the session management function network element determines the first address segment association according to the second indication information.
  • the user plane function network element needs to be changed to the second user plane function network element.
  • the first network element may be the network function storage function network element 170 in FIG. 1 , such as an NRF network element, or may be an operation management and maintenance system network element 180 .
  • an OAM network element For example, an OAM network element.
  • the session management function network element learns that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element, and may include: the session management function network element according to the first address segment.
  • the load information of the currently associated user plane function network element determines that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element. For the implementation, refer to FIG. 6 , and details are not described herein again.
  • the session management function network element learns the first group identifier, where the first group identifier corresponds to the first address segment.
  • the session management function network element learns the first group identifier, and the method includes: the session management function network element determines, according to the first address segment, the first group identifier corresponding to the first address segment.
  • the session management function network element may be configured according to the first group identifier and the first address segment. Corresponding relationship, determining a first group identifier corresponding to the first address segment.
  • the session management function network element learns the first group identifier, and the method includes: the session management function network element determines the group identifier recorded in the context of the first terminal as the first group identifier.
  • the session management function network element may be configured to send a PDU session creation request message to the second user plane function network element after the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element.
  • the PDU session creation request message is used to request the second user plane function network element to create a PDU session of the first terminal in the first address segment.
  • the second user plane function network element After the PDU session creation request message is used to create a PDU session for the first terminal, the second user plane function network element returns a PDU session creation response message to the session management function network element.
  • the session management function network element queries the session context of the first terminal according to the PDU session creation response message, and determines the group identity recorded in the session context of the first terminal as the first group identity. This implementation will be described later in connection with FIG. 6 or FIG.
  • the group identifier corresponding to the first address segment may be one or multiple.
  • the group identifier is the first group identifier; when the group identifier corresponding to the first address segment is multiple, the plurality of group identifiers include the first group Group ID.
  • the session management function network element sends a second message to the tunnel endpoint network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, configured to request the first group identifier
  • the address information of the user plane function network element of the one or more terminals in the corresponding first group is modified to the second address information.
  • the tunnel endpoint network element receives the second message from the session management function network element.
  • the tunnel endpoint network element may be the access network device 120 in FIG. 1, or may be the user plane function network element 151 or the user plane function network element 152 in FIG.
  • the second address information of the second user plane function network element may be the N3 interface IP address information of the second user plane function network element.
  • a set of one or more terminals identified by the group identity as the first group may be referred to as a first group.
  • the second message may be a PDU session modification request message.
  • the tunnel endpoint network element records the address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier as the second address information according to the second message.
  • the tunnel endpoint network element modifies or updates the address information of the user plane function network element recorded in the context of one or more terminals in the first group corresponding to the first group identifier according to the second message. Two address information.
  • the session management function network element sends the second message to the tunnel endpoint network element, and the address information of the user plane function network element of the one or more terminals corresponding to the first group identifier may be updated, which is helpful. Improve the convenience of the session management function network element to manage the address information of the user plane function network element.
  • the session management function network element sends a second message to the tunnel endpoint network element, and the address information of the user plane function network element of the multiple terminals can be updated, which helps save signaling overhead.
  • the communication method shown in FIG. 2 may be performed first, and then the communication method shown in FIG. 3 may be executed.
  • the communication method shown in FIG. 2 may be performed first, and the tunnel endpoint network element is notified of the group identifier assigned to the first terminal as the first group identifier, and then the communication method shown in FIG. 3 is performed to the tunnel port.
  • the address information of the user plane function network element of the one or more terminals (including the first terminal) in the first group corresponding to the first group identifier needs to be modified to be the address information of the second user plane function network element.
  • the session management function network element can manage the address information of the user plane function network element of all the terminals corresponding to the first group identifier by using a second message. In addition, signaling overhead can be saved.
  • the session management function network element is the SMF network element
  • the tunnel endpoint network element is the AN device
  • the first user plane function network element is the UPF network element
  • the first terminal is the UE as an example. Referring to FIG. 4, the session management function network element is introduced. A communication method when the first group identity is assigned to the first terminal.
  • the UE sends a PDU session creation request message to the SMF network element, where the PDU session creation request message is used to create a PDU session of the user, where the PDU session creation request message carries the DNN information of the first terminal.
  • the SMF network element sends an N4 session establishment request message to the UPF network element, where the N4 session establishment request message is used by the UPF network element to create a PDU session.
  • the UPF network element returns an N4 session establishment response message to the SMF network element, where the N4 session establishment response message is used to generate a result of the UPF network element responding to the PDU session.
  • the SMF network element allocates a group identifier to the PDU session of the terminal according to the address information of the PDU session of the UE.
  • the address information of the PDU session of the UE may be simply referred to as the address information of the UE, and the group identifier of the PDU session of the UE may be simply referred to as the group identity of the UE.
  • the address of the UE may be allocated by the SMF network element, or may be sent to the SMF network element after the other network element is allocated.
  • the SMF network element may allocate an address to the UE according to the DNN information acquired in S401.
  • the NRF network element or the UPF network element allocates an address to the UE according to the DNN information of the UE, and then sends the address to the SMF network element.
  • An exemplary implementation manner of the SMF network element assigning a group identifier to the PDU session of the UE according to the address information of the PDU session of the UE may include: determining, by the SMF network element, the address segment to which the address of the UE belongs according to the address information of the UE, and determining The address segment is the first address segment; the SMF network element queries whether there is a group identifier corresponding to the first address segment; if it already exists, the SMF network element selects the group identifier corresponding to the first address segment as the group of the UE The group identifier, the group identifier corresponding to the first address segment is the first group identifier; if not, the SMF network element allocates a new group identifier to the first address segment, and uses the group identifier as The group identifier of the UE, where the group identifier is the first group identifier.
  • the SMF network element may allocate one or more group identifiers for the PDU session of the terminal in the same address segment.
  • the SMF network element sends an N2 PDU session creation request message to the AN device, where the message carries the address information of the first group identifier and the UPF network element.
  • the message carries the N3 interface IP address information of the first group identifier and the UPF network element.
  • the AN device After receiving the N2PDU session creation request message, the AN device creates a session context (referred to as a context) of the UE, and stores the address information of the first group identifier and the UPF network element in the context of the UE.
  • a context a session context of the UE
  • a possible implementation method may include: the UPF network element allocates the group identifier to the UE according to the address information of the UE and the information of the SMF network element where the UE is located.
  • the UPF network element learns the address information of the UE and the information of the SMF network element where the UE is located; determines the address segment to which the address of the UE belongs, that is, the first address segment according to the address information of the UE; whether the query exists with the first address segment and the The SMF network element corresponds to the group identifier; if it exists, the group identifier is selected as the group identifier of the UE, that is, the first group identifier; if not, the UPF network element is the terminal allocation group of the first address segment.
  • the group identifier that is, the first group identifier, and the first group identifier is used as the group identifier of the UE.
  • the AN device forwards the PDU session establish ACK message to the UE, and confirms the creation result of the PDU session to the UE.
  • the AN returns an N2 PDU session establishment request ACK message to the SMF network element, and returns a result of the PDU session creation to the SMF network element.
  • the address of the UE may be allocated by the UPF network element UE, or may be allocated by the SMF network element for the UE.
  • the UPF network element may notify the SMF network element that the group identifier of the UE is the first group identifier.
  • the session management function network element is the SMF network element
  • the tunnel endpoint network element is the AN device
  • the first user plane function network element is the UPF network element
  • the first terminal is the UE as an example
  • the first user plane function is introduced in conjunction with FIG. A communication method when a network element allocates a first group identity to a first terminal.
  • the UE sends a PDU session establishment request message to the SMF network element, where the message carries the DNN information.
  • the SMF network element sends an N4 session establishment request message to the UPF network element.
  • the UPF network element allocates a group identifier for the PDU session of the UE according to the address information of the PDU session of the UE and the information of the SMF network element where the UE is located (for example, the address information of the SMF network element).
  • the address information of the PDU session of the UE may be simply referred to as the address information of the UE, and the group identifier of the PDU session of the UE may be simply referred to as the group identity of the UE.
  • the address information of the PDU session of the UE may be allocated by the UPF network element to the UE, or may be sent by other network elements (for example, SMF network elements) to the UPF network element.
  • the allocation of the group identifier to the UE by the UPF network element may include: determining, by the UPF network element, the address segment where the address of the UE is located according to the address information of the UE, that is, the first address segment, and querying whether the first address segment and the UE are located.
  • the group identifier corresponding to the SMF network element if it already exists, the UPF network element selects the group identifier (ie, the first group identifier) as the group identifier of the UE; if not, the UPF network element allocates the UE The new group ID (ie the first group ID).
  • the UPF network element may allocate one or more group identifiers to terminals in the same SMF and in the same address segment.
  • the UPF network element sends an N4 session setup response message to the SMF network element, where the message carries the first indication information, where the first indication information indicates that the UPF network element is the first group identifier allocated by the UE.
  • the SMF network element obtains the first group identity of the UE from the UPF network element.
  • the SMF network element sends an N2 PDU session creation request message to the AN device, where the message carries the N3 interface IP address of the first group identifier and the UPF (that is, the first address information of the first UPF network element).
  • the AN device After receiving the N2 PDU session creation message, the AN device creates a session context of the UE, and stores the first group identifier and the N3 interface IP address of the UPF network element in the session context of the UE.
  • the AN device sends a NAS message PDU session creation confirmation message to the UE.
  • the AN returns a PDU session request confirmation message to the SMF.
  • the first network element is the NRF network element
  • the second user plane function network element is the UPF network element
  • the tunnel endpoint network element is the AN device
  • the session management function network element is the SMF network element
  • the second indication information is the UPF status notification message.
  • the second message is a PDU session modification request message as an example. Referring to FIG. 5, the communication method when the first network element determines that the user plane function network element of the first terminal needs to be modified into the second user plane function network element is described.
  • the SMF network element sends a UPF status subscribed message to the NRF network element to subscribe to the state of the UPF network element, where the UPF status subscription message includes DNN information.
  • the state of the UPF network element may include a load status of the UPF network element.
  • the inclusion of DNN information in the UPF status subscription message refers to the status of the UPF network element that subscribes to the DNN information.
  • the NRF network element sends a UPF status notify message to the SMF network element according to the UPF status subscription message, and after detecting that the status of the corresponding UPF network element is changed, the message may include a UPF network element (ie, The relationship between the address segment of the terminal (ie, the first address segment) and the identifier of the second UPF network element (such as the UPF ID) of the second UPF network element is notified to notify the UPF network element supporting the DNN to become the first Two UPF network elements.
  • a UPF network element ie, The relationship between the address segment of the terminal (ie, the first address segment) and the identifier of the second UPF network element (such as the UPF ID) of the second UPF network element is notified to notify the UPF network element supporting the DNN to become the first Two UPF network elements.
  • the SMF network element may decide to migrate the PDU session of the terminal in the first address segment to the second UPF network element.
  • the SMF network element sends a PDU session creation request message to the UPF, and the PDU session of the terminal in the first address segment is reconstructed on the UPF.
  • the UPF network element returns a PDU session creation response message to the SMF network element.
  • the SMF network element sends a PDU session modification message to the AN device.
  • the PDU session modification message carries the N3 interface IP address (ie, the second address information) of the 6UPF network element and the first group identifier of the UE.
  • the AN device learns the N3 interface address of the first group identifier and the UPF, and batch-updates one or more of the first group identifiers according to the first group identifier in the message.
  • the IP address of the N3 interface in the context of the terminal.
  • the SMF network element may return a user migration completion notification message to the NRF network element. If the migration is caused by the overload of the UPF network element, the NRF network element may notify the UPF to enable the routing of the address segment of the UE after obtaining the user migration completion notification message. That is, the priority of the first address segment route on the second UPF is set to a high priority.
  • step of configuring the route priority of the first address segment may also be completed by the SMF network element.
  • S601 and S602 are optional steps.
  • the SMF may determine that the PDU session of the terminal of the first address segment is migrated to the second UPF network element.
  • the user migration completion notification sent by the SMF to the NRF network element may be omitted.
  • the source UPF fault event is obtained by the NRF or the SMF, the UE address segment on the source UPF is route-enabled on the target UPF.
  • the first network element is an OAM network element
  • the first user plane function network element is a first UPF network element
  • the second user plane function network element is a second UPF network element
  • the session management function network element is an SMF network element
  • the second indication information is an UPF status notification message as an example. Referring to FIG. 6, a communication method when the first network element determines that the user plane function network element of the first terminal needs to be modified into the second user plane function network element is described.
  • the first UPF network element reports the load information of the first address segment of the first UPF network element service to the OAM network element according to the address segment granularity.
  • the first UPF network element may be referred to as a source UPF network element serving the terminal in the first address segment.
  • the OAM network element determines to migrate the PDU session of the terminal in the first address segment on the first UPF to the second UPF network element if the first UPF is overloaded or faulty.
  • the OAM network element may select the second UPF according to the load information of the second UPF network element.
  • the first address segment information is configured to the second UPF network element.
  • the second UPF initiates a registration update message to the NRF network element.
  • the registration update message carries an association relationship between the identifier of the first address segment and the second UPF network element.
  • the NRF network element sends an UPF status notification message to the SMF network element, where the message carries the association between the first address segment and the identifier of the second UPF network element.
  • the identifier of the first UPF network element may also be carried in the message.
  • S705 The SMF network element performs an address segment migration process. For example, S603 to S607 shown in Fig. 6.
  • S706 The SMF network element notifies the NRF network element that the PDU session migration of the terminal in the first address segment is completed.
  • the NRF network element may send the first address segment route enablement to the second UPF network element, that is, the priority of the first address segment route is set to a high priority. .
  • the NRF network element sends a first address segment de-enable message to the first UPF network element, that is, the priority of the first address segment route is configured as a low priority.
  • S706 may not be performed.
  • S707 and S608 can be executed after S703.
  • the OAM network element determines the migration of the address segment according to the real-time load of the UPF network element, and when the number of the NMF is used between the SMF network element and the UPF network element. Compared with the migration of the SMF network element's own decision address segment, it helps to avoid the decision conflict caused by the policy inconsistency of different SMF network elements.
  • the network function The storage function network element may also allocate a tunnel endpoint identity (TEID) segment of the user plane function network element to the session management function network element.
  • the session management function network element obtains the TEID segment of the user plane function network element.
  • the TEID is allocated to the terminal, the TEID segment can be included in the complete TEID to ensure that the TEID values assigned by different SMF network elements are in the same user plane function. There is no conflict on the NE.
  • the following takes the first network element as the NRF network element, the session management function network element as the SMF network element, and the user plane function network element as the UPF network element as an example.
  • the network function storage function network element is introduced to the session management function network element.
  • the OAM network element system triggers the UPF instance to go online.
  • the UPF instance is a UPF network element.
  • the UPF instance After the UPF instance is online, the UPF instance initiates registration with the NRF network element.
  • the registration message contains the IDs of the DNN and UPF.
  • the SMF network element sends an UPF status subscription message to the NRF network element, where the message carries the DNN.
  • This step page can occur before the steps S801 and S802.
  • the NRF network element allocates a TEID segment of the UPF instance.
  • the NRF network element may allocate the TEID segment according to the number of SMF instances that subscribe to the UPF instance state.
  • the NRF allocates two TEID segments for the UPF. S805.
  • the NRF network element sends the allocated TEID segment to the SMF network element that subscribes to the UPF instance state.
  • the SMF network element After the SMF network element obtains the TEID segment of the UPF instance, when the SMF network element allocates the TEID to the UE, the TEID segment is included in the complete TEID, so that the TEID values allocated by different SMF network elements are not on the same UPF network element. There is a conflict. Therefore, in the subsequent UPF network element migration process, the TEID values on different UPF network elements are not guaranteed to be the same, so as to avoid conflicts.
  • FIG. 9 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. It should be understood that the communication device 900 illustrated in FIG. 9 is merely an example.
  • the communication device 900 can include a receiving module 910 and a processing module 920.
  • the communication device 900 can be used to perform the steps performed by the tunnel endpoint network element or AN device in the communication method shown in any of Figures 2-8. At this time, an example of the communication device 900 is a tunnel endpoint network element or an AN device.
  • the receiving module 910 is configured to receive the first message from the session management function network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, A request is made to create a packet data unit session for the first terminal.
  • the processing module 920 is configured to generate a context of the first terminal according to the first message, and record, in the context of the first terminal, the group identifier of the first terminal as the first group identifier, and record the user plane function network of the first terminal.
  • the address information of the element is the first address information.
  • the receiving module 910 is further configured to receive a second message from the session management function network element, where the second message includes second address information of the first group identifier and the second user plane function network element, for requesting Modifying address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier to the second address information.
  • the processing module 920 is further configured to determine the first terminal according to the first group identifier in the second message, and modify the first address information in the address information of the user plane function network element of the first terminal to the second address information.
  • the receiving module 910 is configured to receive a second message from the session management function network element, where the second message includes second address information of the first group identifier and the second user plane function network element, for requesting the The address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier is modified to the second address information.
  • the processing module 920 is configured to record, according to the second message, address information of a user plane function network element of one or more terminals in the first group corresponding to the first group identifier as the second address. information.
  • one or more terminals in the first group comprise a first terminal.
  • the receiving module 910 is further configured to: before receiving the second message from the session management function network element, receive the first message from the session management function network element, where the first message includes the identifier of the first terminal, the first group identifier, and The first address information of the first user plane function network element is used to request to create a packet data unit session for the first terminal.
  • the processing module 920 is further configured to generate a context of the first terminal according to the first message, and record, in a context of the first terminal, a group identifier of the first terminal as a first group identifier, and record a user plane function network of the first terminal.
  • the address information of the element is the first address information.
  • the processing module 920 is specifically configured to modify the first address information in the address information of the user plane function network element of the first terminal to the second address information according to the second message.
  • one example of the receiving module 910 is a receiver, and one example of the processing module 920 is a processor.
  • the communication device 900 may further include a transmitter.
  • the receiver and transmitter can be integrated together, called a transceiver, which is used to transmit information.
  • the communication device 900 may further include a memory for storing the program code. This memory can be integrated with the processor.
  • FIG. 10 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. It should be understood that the communication device 1000 illustrated in FIG. 10 is merely an example.
  • the communication device 1000 can include a processing module 1010 and a transmitting module 1020.
  • the communication device 1000 may further include a receiving module 1030.
  • the communication device 1000 can be used to perform the steps performed by the session management function network element or the SMF network element in the communication method shown in any of FIGS. 2 to 8.
  • An example of communication device 1000 is a session management function network element or an SMF network element.
  • processing module 1010 is configured to:
  • the sending module 1020 is configured to send a first message to the tunnel endpoint network element, where the first message includes an identifier of the first terminal, a first group identifier, and first address information of the first user plane function network element, Used to request to create a packet data unit session for the first terminal.
  • processing module 1010 is further configured to:
  • the user plane function network element associated with the first address segment needs to be modified to be the second user plane function network element
  • the sending module 1020 is further configured to send the second message to the tunnel endpoint network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, and is configured to request to correspond to the first group identifier.
  • the address information of the user plane function network element of one or more terminals in the first group is modified to the second address information.
  • the processing module 1010 is configured to: learn that the user plane function network element associated with the first address segment needs to be modified into a second user plane function network element; and learn the first group identifier, where the first group identifier and the first group identifier The address segment corresponds.
  • the sending module 1020 is configured to send a second message to the tunnel endpoint network element, where the second message includes the first group identifier and the second address information of the second user plane function network element, for requesting the The address information of the user plane function network element of the one or more terminals in the first group corresponding to the first group identifier is modified to the second address information.
  • one or more terminals in the first group include a first terminal
  • the processing module 1010 is further configured to: before sending the second message to the tunnel endpoint network element:
  • the sending module 1020 is further configured to send the first message to the tunnel endpoint network element, where the first message includes the identifier of the first terminal, the first group identifier, and the first address information of the first user plane function network element, where the request is The first terminal creates a packet data unit session.
  • processing module 1010 is specifically configured to:
  • the receiving module 1030 is further configured to receive the first indication information from the first user plane function network element, where the first indication information is used to indicate that the group identifier of the first terminal is the first group identifier.
  • the processing module 1010 is specifically configured to determine the first group identifier according to the first indication information.
  • the processing module 1010 is specifically configured to determine, according to the first address segment, a first group identifier corresponding to the first address segment.
  • the processing module 1010 is specifically configured to: determine the group identifier recorded in the context of the first terminal as the first group identifier.
  • the processing module 1010 is specifically configured to: determine, according to the load information of the user plane function network element that is currently associated with the first address segment, that the user plane function network element associated with the first address segment needs to be modified into the second user plane function network element. .
  • the receiving module 1030 is further configured to: receive the second indication information from the first network element, where the second indication information is used to indicate that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element. ;
  • the processing module specific 1010 is configured to determine, according to the second indication information, that the user plane function network element associated with the first address segment needs to be changed to the second user plane function network element.
  • one example of the transmitting module 1020 is a transmitter
  • one example of the processing module 1010 is a processor
  • one example of the receiving module 1030 is a receiver.
  • the receiver and transmitter can be integrated together, called a transceiver.
  • the sending module 1020 is a transmitter
  • the receiving module 1030 is a receiver
  • the processing module 1010 is a processor
  • the communication device 1000 may further include a memory for storing the program code. This memory can be integrated with the processor.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • 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, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de communication, et un appareil associé. Le procédé de communication comprend les étapes suivantes : un élément de réseau de point d'extrémité de tunnel reçoit un premier message d'un élément de réseau de fonction de gestion de session, le premier message contenant un identifiant d'un premier terminal, un premier identifiant de groupe, et des premières informations d'adresse d'un premier élément de réseau de fonction de plan utilisateur, et étant utilisé pour demander la création d'une session d'unité de données par paquets pour le premier terminal ; sur la base du premier message, l'élément de réseau de point d'extrémité de tunnel génère un premier contexte de terminal et, dans le premier contexte de terminal, enregistre l'identifiant de groupe du premier terminal en tant qu'un premier identifiant de groupe et enregistre les informations d'adresse de l'élément de réseau de fonction de plan utilisateur du premier terminal en tant que des premières informations d'adresse. Le procédé de communication et l'appareil de communication décrits dans la présente invention améliorent la praticité de gestion d'informations d'adresse d'un élément de réseau d'UPF sur un AN.
PCT/CN2019/081839 2018-04-09 2019-04-09 Procédé de communication, et appareil associé WO2019196811A1 (fr)

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CN114285787A (zh) * 2021-12-30 2022-04-05 中国电信股份有限公司 跨用户面转发方法、系统和计算机可读存储介质
CN114285787B (zh) * 2021-12-30 2023-07-14 中国电信股份有限公司 跨用户面转发方法、系统和计算机可读存储介质
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CN114615132A (zh) * 2022-02-25 2022-06-10 亚信科技（中国）有限公司 一种分流upf的故障处理方法、装置、设备和存储介质

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