WO2018195943A1 - 用于拥塞处理的方法和设备 - Google Patents

用于拥塞处理的方法和设备 Download PDF

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Publication number
WO2018195943A1
WO2018195943A1 PCT/CN2017/082479 CN2017082479W WO2018195943A1 WO 2018195943 A1 WO2018195943 A1 WO 2018195943A1 CN 2017082479 W CN2017082479 W CN 2017082479W WO 2018195943 A1 WO2018195943 A1 WO 2018195943A1
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WO
WIPO (PCT)
Prior art keywords
network device
core network
message
connection
terminal device
Prior art date
Application number
PCT/CN2017/082479
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English (en)
French (fr)
Inventor
杨宁
***
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP23184020.8A priority Critical patent/EP4243567A3/en
Priority to CN202211351385.7A priority patent/CN115604757A/zh
Priority to EP17907392.9A priority patent/EP3606282B1/en
Priority to PCT/CN2017/082479 priority patent/WO2018195943A1/zh
Priority to KR1020197031909A priority patent/KR102475109B1/ko
Priority to CN201780088940.2A priority patent/CN110463343B/zh
Priority to JP2019557464A priority patent/JP2020519076A/ja
Publication of WO2018195943A1 publication Critical patent/WO2018195943A1/zh
Priority to US16/661,587 priority patent/US11405824B2/en
Priority to JP2021202034A priority patent/JP7286741B2/ja
Priority to US17/811,920 priority patent/US11991559B2/en

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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
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0958—Management thereof based on metrics or performance parameters
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • 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
    • H04W28/08—Load balancing or load distribution
    • H04W28/088—Load balancing or load distribution among core entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/0816—Configuration setting characterised by the conditions triggering a change of settings the condition being an adaptation, e.g. in response to network events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • 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
    • H04W28/08—Load balancing or load distribution
    • 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
    • H04W28/08—Load balancing or load distribution
    • H04W28/09—Management thereof
    • H04W28/0925—Management thereof using policies
    • H04W28/0942—Management thereof using policies based on measured or predicted load of entities- or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic

Definitions

  • Embodiments of the present application relate to the field of communications and, more particularly, to methods and apparatus for congestion processing.
  • a base station can be connected to two core network devices at the same time.
  • the base station can simultaneously connect the core network devices in the Long Term Evolution (LTE) system and the core network devices in the 5th Generation 5G (5th-Generation, 5G) system.
  • LTE Long Term Evolution
  • 5G 5th-Generation
  • the terminal device establishes a connection, only one core network device is selected for access. If too many terminal devices access the same core network device, the core network device will be congested.
  • the present invention provides a method and a device for congestion processing, which can solve the congestion problem of the core network device, implement load balancing between the core network devices, and improve the user experience.
  • the first aspect provides a method for congestion processing, including: an access network device receives a first message sent by a source core network device, where the first message is used to indicate that the source core network device is overloaded; The access network device performs an operation of migrating the terminal device from the source core network device to the target core network device according to the first message, where the target core network device and the source core network device support different communication systems.
  • the method for congestion processing of the present application after receiving the first message indicating the overload sent by the source core network device, the access network device performs an operation of migrating the terminal device from the source core network device to the target core network device, so that the terminal The device can be migrated from the source core network to the target core network to solve the congestion problem of the source core network device, and can achieve load balancing between the core network devices and improve the user experience.
  • the performing, by the source network device, to the target core network device includes: sending a second message to the terminal device, where The second message is used to indicate that the terminal device releases the first connection, and establishes, with the access network device, a second connection related to the target core network device, where the first connection is the terminal device and the A connection established between the access network devices and the source core network device.
  • the second message includes first indication information and/or second indication information, where the first indication information is used to indicate release The reason for the first connection, the second indication information is used to indicate the target core network device.
  • the performing, by the source core network device, the migration to the target core network device further includes: receiving the terminal device Sending a third message, the third message is used to request to establish the second connection with the access network device; and the second connection is established with the terminal device according to the third message.
  • the third message includes third indication information, where the third indication information is used to indicate that the second connection is requested to be established. The reason is that the source core network device is overloaded.
  • the performing, by the source core network device, the migration to the target core network device includes: sending the terminal device a fourth message, where the fourth message includes a parameter related to the target core network, where the fourth message is used to instruct the terminal device to reconfigure the first connection according to the parameter, where the first connection is A connection established between the terminal device and the access network device and related to the source core network device.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate The reason for the first connection is configured, and the fifth indication information is used to indicate an effective time of the parameter.
  • the parameter includes at least one of the following parameters: a parameter related to quality of service QoS, a security key, and the target The parameters related to the network slice to which the core network device belongs.
  • the performing, by the source core network device, the migration to the target core network device further includes: to the target core The network device sends a fifth message, where the fifth message is used to request the target core network device to configure the parameter, and/or the fifth message is used to request to establish a bearer with the target core network device.
  • the performing, by the source core network device, the migration to the target core network device includes:
  • the sixth message includes sixth indication information, where the sixth indication information is used to indicate a reason for establishing the connection.
  • the performing, by the source core network device, the migration to the target core network device includes: establishing the core network Hosting between devices.
  • the method further includes: The access network device sends a seventh message to the target core network device, where the seventh message is used to indicate the last received data of the access network device.
  • the method further includes: the access network device sending an eighth message, the eighth message, to the source core network device And configured to indicate that the terminal device has been migrated by the source core network device to the target core network device.
  • a second aspect provides a method for congestion processing, including: a source core network device determining a first message, the first message indicating that the source core network device is overloaded; and the source core network device Sending the first message to the access network device, where the access network device is configured to perform, according to the first message, an operation of migrating the terminal device from the source core network device to the target core network device, where the target The core network device and the source core network device support different communication systems.
  • the source core network device when the source core network device determines that it is overloaded, the source core network device sends a first message indicating the overload to the access network device, so that the access network device performs the setting of the terminal by the source according to the first message.
  • the operation of migrating the core network device to the target core network device enables the terminal device to be migrated from the source core network device to the target core network device, solves the congestion problem of the source core network, and can achieve load balancing between the core network devices and improve user experience.
  • the method further includes: the source core network device sending a ninth message to the target core network device, where the ninth message is used to indicate the The data that the source core network device finally sends to the access network device.
  • the The method further includes: the source core network device receiving an eighth message sent by the access network device, where the eighth message is used to indicate that the terminal device has been migrated by the source core network device to the target core network device.
  • a third aspect provides a method for congestion processing, including: receiving, by a terminal device, a second message sent by an access network device, where the second message is used to instruct the terminal device to release the first connection, and Establishing, by the access network device, a second connection related to the target core network device, where the first connection is a connection established between the terminal device and the access network device and related to the source core network device.
  • the target core network device and the source core network device support different communication systems.
  • the terminal device receives the second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection with the source core network device established between the access network device and the access network device. Connecting, and establishing, with the access network device, a second connection associated with the target core network device. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the second message includes first indication information and/or second indication information, where the first indication information is used to indicate that the first connection is released.
  • the second indication information is used to indicate the target core network device.
  • the method further includes: the terminal device releasing the first connection according to the second message;
  • the access network device sends a third message, where the third message is used to request to establish the second connection with the access network device.
  • the third message includes third indication information, where the third indication information is used to indicate that the second connection is requested to be established. The reason is that the source core network device is overloaded.
  • a fourth aspect provides a method for congestion processing, including: receiving, by a terminal device, a fourth message sent by an access network device, where the fourth message includes parameters related to a target core network device, where the fourth The message is used to instruct the terminal device to reconfigure the first connection according to the parameter, where the first connection is a connection established between the terminal device and the access network device and related to the source core network device,
  • the target core network device and the source core network device support different communication systems.
  • the terminal device receives the fourth cancellation sent by the access network device
  • the fourth message is used to instruct the terminal device to reconfigure the first connection related to the source core network device according to the parameter related to the target core network device. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate reconfiguration of the first The reason for the connection is that the fifth indication information is used to indicate the effective time of the parameter.
  • the parameter includes at least one of the following parameters: a parameter related to quality of service QoS, a security key, and the target The parameters related to the network slice to which the core network device belongs.
  • the method further includes: the terminal device reconfiguring the first connection according to the parameter.
  • the terminal device in another implementation manner of the fourth aspect, in a case that the fourth message includes the fifth indication information, the terminal device reconfigures according to the parameter
  • the first connection includes: the terminal device reconfigures the first connection according to the parameter after the effective time.
  • a fifth aspect a method for congestion processing, comprising: receiving, by a terminal device, a sixth message sent by an access network device, where the sixth message is used to trigger the terminal device to re-establish a flow through the connection
  • the access network device establishes a correlation of the target core network device, so that the terminal device is migrated from the source core network device to the target core network device, and the target core network device and the source core network device support different communication systems.
  • the terminal device receives a sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to establish a connection with the target core network device between the access network device and the access network device through the connection re-establishment process. Connection. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the sixth message includes sixth indication information, where the sixth indication information is used to indicate a reason for establishing the connection.
  • the method further includes: the terminal device initiates a connection re-establishment process according to the sixth message, and the access network The device establishes the connection.
  • an access network device for performing the method of any of the first aspect or the first aspect of the first aspect.
  • the access network device comprises functional modules for performing the method of the first aspect or any of the possible implementations of the first aspect.
  • a core network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the core network device includes functional modules for performing the method in any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device for performing the method in any of the above-mentioned third aspect or any possible implementation of the third aspect.
  • the terminal device comprises functional modules for performing the method in any of the possible implementations of the third aspect or the third aspect described above.
  • a terminal device for performing the method of any of the above-mentioned fourth aspect or any possible implementation of the fourth aspect.
  • the terminal device comprises functional modules for performing the method in any of the possible implementations of the fourth aspect or the fourth aspect described above.
  • a terminal device for performing the method in any of the foregoing fifth or fifth possible implementations.
  • the terminal device includes a functional module for performing the method in any of the possible implementation manners of the fifth aspect or the fifth aspect described above.
  • an access network device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the access network device performs any of the first aspect or the first aspect described above.
  • the method in the implementation including a processor, a memory, and a transceiver.
  • a core network device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the core network device performs any of the possible implementations of the second aspect or the second aspect described above The method in the way.
  • a terminal device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with each other through an internal connection path, and transmit control and/or data signals, such that the terminal device performs any of the third or third aspects of the foregoing possible implementation manner.
  • a terminal device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with each other through an internal connection path, and transmit control and/or data signals, such that the terminal device performs any of the foregoing fourth or fourth possible implementations.
  • a terminal device including a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver communicate with each other through an internal connection path, and transmit control and/or data signals, such that the terminal device performs any of the fifth or fifth aspects of the foregoing possible implementation manner.
  • a sixteenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for performing the first aspect or any of the possible implementations of the first aspect.
  • a seventeenth aspect a computer readable medium for storing a computer program, the computer program comprising instructions for performing any of the second aspect or the second aspect of the second aspect.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing any of the possible implementations of the third or third aspect above.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing any of the possible implementations of the fourth or fourth aspect described above.
  • a computer readable medium for storing a computer program, the computer program comprising instructions for performing any of the possible implementations of the fifth or fifth aspect above.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flow chart of a method for congestion processing according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for congestion processing according to an embodiment of the present application.
  • FIG. 4 is a schematic flow chart of a method for congestion processing according to another embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for congestion processing according to another embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for congestion processing according to still another embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a method for congestion processing according to still another embodiment of the present application.
  • FIG. 8 is a schematic flowchart of a method for congestion processing according to still another embodiment of the present application.
  • FIG. 9 is a schematic block diagram of an access network device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a core network device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of an access network device according to another embodiment of the present application.
  • FIG. 13 is a schematic block diagram of a core network device according to another embodiment of the present application.
  • FIG. 14 is a schematic block diagram of a terminal device according to another embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device may include, but is not limited to, a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile phone (Mobile Telephone), a user equipment (User Equipment, UE), and a mobile phone (handset).
  • a portable device, a vehicle, etc. the terminal device can communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal device can be a mobile phone (or Known as "cellular" telephones, computers with wireless communication capabilities, etc., the terminal devices can also be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices.
  • RAN Radio Access Network
  • the access network device involved in the embodiment of the present application is a device deployed in a wireless access network to provide a wireless communication function for a terminal device.
  • the access network device may be a base station, and the base station may include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the names of devices with base station functionality may vary.
  • an Evolved NodeB eNB or eNodeB
  • 3G 3rd Generation
  • the core network device involved in the embodiment of the present application is a device deployed in a core network to provide a wireless communication function for a terminal device.
  • the core network device may be a Mobile Management Entity (MME).
  • MME Mobile Management Entity
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the base station is simultaneously connected to core network devices (core network devices in LTE and core network devices in 5G) in two communication systems.
  • core network devices core network devices in LTE and core network devices in 5G
  • the terminal device selects one of the core network devices for access.
  • the terminal device on the core network device needs to be migrated to another core network device to implement load balancing between the core network devices.
  • the present invention provides a method for congestion processing, which can solve the congestion problem of the core network device in the above scenario, implement load balancing between the core network devices, and improve the user experience.
  • FIG. 2 illustrates a method for congestion processing in accordance with an embodiment of the present application. As shown in FIG. 2, the method 100 includes:
  • the access network device receives a first message sent by the source core network device, where the first message is used to indicate that the source core network device is overloaded.
  • the access network device performs, according to the first message, an operation of migrating a terminal device from the source core network device to a target core network device, where the target core network device and the source core network device support different communications. system.
  • the first message carries the identifier of the source core network device, and after receiving the first message, the access network device determines, according to the identifier in the first message, that the source core network device is congested. Further, the first message may further include cause indication information, where the cause indication information is used to indicate that the congestion is caused by what reason or what service.
  • the first message carries the load of the source core network device, and the access network device determines that the source core network is overloaded according to the load of the source core network device.
  • the access network device before the access network device performs the operation of migrating the terminal device from the source core network device to the target core network device according to the first message, the access network device needs to determine the target core network device and the Said terminal equipment.
  • the first message carries the identifier of the target core network device, and the access network device determines the target core network device according to the identifier in the first message.
  • the terminal device establishes a connection with the access network device, the terminal device reports the type of the core network device that the access device can access to the access network device and / or the identity of the core network device, the access network device determines the target core network device according to the information reported by the terminal device. Or the access network device determines the target core network according to the capability of the terminal device to support the core network device and the current service.
  • the access network device may determine according to the capability of the terminal device to support the core network device. For example, suppose the source core network device is a core network device in the LTE communication system, and the target core network device is a core network device in the 5G communication system. If one terminal device only supports the core network device in the LTE communication system, the terminal device does not It is convenient to migrate from the source core network to the target core network device. If a terminal device supports both the core network device in the LTE communication system and the core network device in the 5G communication system, the terminal device may be migrated from the source core network device to the target core network device to reduce the load of the source core network device. .
  • the access network device may determine whether to migrate the terminal device according to the current service of the terminal device. For example, if the current service of the terminal device is only supported by the source core network device, the terminal device is inconvenient to switch from the source core network to the target core network. If the source core network device and the target core network device support the current service of the terminal device at the same time, the terminal device may be migrated from the source core network device to the target core network device to reduce the load of the source core network device.
  • the access network device may migrate the terminal device from the source core network device to the target core network device by using the following methods.
  • the access network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to release the first connection, and establish a second connection with the access network device related to the target core network device, where the first connection is the terminal device and A connection established between the access network devices and the source core network device.
  • the first indication information and/or the second indication information are included in the second message, where the first indication information indicates a reason for releasing the first connection, the second indication information indicates a target core network device, and the second indication information may be, for example, Is the identity of the target core network device or the type of the target core network device.
  • the terminal device after receiving the second message, releases the first connection according to the second message, and sends a third message for requesting to establish a second connection with the access network device to the access network device.
  • the third message includes third indication information, where the third indication information is used to indicate that the reason for requesting to establish the second connection is that the source core network device is overloaded.
  • the access network device After the access network device establishes the second connection with the terminal device, the access network device establishes a bearer with the target core network device.
  • the access network device sends a fourth message to the terminal device, where the fourth message includes parameters related to the target core network device, and the fourth message is used to instruct the terminal device to reconfigure the first connection according to the parameter, where the first connection is the terminal device A connection established with the access core device that is associated with the source core network device.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate a reason for reconfiguring the first connection, and the fifth indication information is used to indicate an effective time of the parameter.
  • the terminal device after receiving the fourth message, the terminal device reconfigures the first connection according to the fourth message. Further, if the fourth message includes the fifth indication information, the terminal device reconfigures the first connection according to the fourth message after the effective time of the parameter.
  • the access network device may indicate, by using the fifth indication information, that the parameter is valid after a first time period begins after the terminal device receives the fourth message. Then, the terminal device starts a timer when receiving the fourth message, and the timer duration of the timer is the first duration. When the timer expires, the terminal device considers that the parameter starts to take effect, and reconfigures the first connection according to the parameter. Or the terminal device starts the timer when the fourth message is received, and the timer duration of the timer is the first duration. When the timer expires, the terminal device considers that the parameter is effective, and configures the first connection according to the parameter. .
  • the access network device may send a fifth message to the target core network device, where the fifth message is used to request the target core network device to configure the parameter, and/or the fifth message, before sending the fourth message to the terminal device. Used to request the establishment of a bearer with the target core network device. Or the access network device may send the fifth message to the target core network device after sending the fourth message to the terminal device. After receiving the fifth message, the target access network device configures the parameter for the terminal device and/or establishes a bearer with the access network device.
  • the access network device After the connection between the access network device and the terminal device is established, and the bearer is established with the target core network device, the access network device sends a seventh message to the target core network device, where the seventh message is used to indicate that the access network device finally receives the The data. And the access network device sends an eighth message to the source core network device, where the eighth message is used to indicate that the terminal device has been migrated from the source core network device to the target core network device.
  • the seventh message includes data last received by the access network device.
  • the seventh message includes related information of data finally received by the access network device, where the related information may be, for example, an identifier of the data packet.
  • the target core network device may determine, according to the seventh message, data that the source core network device has sent to the access network device.
  • the parameter includes at least one of the following parameters: a parameter related to Quality of Service (QoS), a security key, and a network slice associated with the target core network device. parameter.
  • QoS Quality of Service
  • security key a parameter related to Authentication Service
  • network slice associated with the target core network device. parameter.
  • the access network device sends a sixth message to the terminal device, where the sixth message is used to trigger the terminal device to establish a connection related to the target core network device with the access network device through the connection re-establishment process, so that the terminal device is forwarded by the source core network device Target core network device migration.
  • the terminal device after receiving the sixth message, the terminal device initiates a connection re-establishment process according to the sixth message, and establishes a connection with the access network device.
  • connection re-establishment process in the embodiment of the present application is the same as the corresponding process in the prior art. The difference is that the connection re-establishment process in the embodiment of the present application is triggered by the access network device.
  • the access network device may send a fifth message to the target core network device, where the fifth message is used to request the target core network device to configure parameters related to the target core network device, before sending the sixth message to the terminal device. And/or the fifth message is used to request to establish a bearer with the target core network device. Or the access network device may send the fifth message to the target core network device after sending the sixth message to the terminal device. After receiving the fifth message, the target access network device configures the parameter for the terminal device and/or establishes a bearer with the access network device.
  • the access network device After the connection between the access network device and the terminal device is established, and the bearer is established with the target core network device, the access network device sends a seventh message to the target core network device, where the seventh message is used to indicate that the access network device finally receives the The data. Or the access network device sends an eighth message to the source core network device, where the eighth message is used to indicate that the terminal device has been migrated from the source core network device to the target core network device.
  • the seventh message includes data last received by the access network device.
  • the seventh message includes related information of data finally received by the access network device, where the related information may be, for example, an identifier of the data packet.
  • the target core network device may determine, according to the seventh message, data that the source core network device has sent to the access network device.
  • FIG. 3 is a schematic flowchart of a method for processing congestion according to an embodiment of the present application.
  • the method 200 corresponds to the method 1 of the method 100. To avoid repetition, the related description is omitted as shown in FIG. 3.
  • the method 200 includes:
  • the source core network device determines an overload, and the source core network device sends a load balancing request to the base station.
  • the base station sends a connection release message to the terminal device.
  • connection release message The reason for the release of the connection release message is that the source core network device is overloaded, and the connection release message indicates that the terminal device initiates the connection establishment process according to the target core network mode.
  • the terminal device establishes a connection with the base station.
  • the base station establishes a bearer with the target core network device.
  • method 300 is a method for congestion processing according to another embodiment of the present application.
  • the method 300 shown in FIG. 4 corresponds to the method 2 and the method of the method 100. In order to avoid repetition, the related description is omitted as appropriate.
  • method 300 includes:
  • the source core network device determines an overload, and the source core network device sends a load balancing request to the base station.
  • the base station sends a handover request to the target core network device.
  • the handover request is used to request the target core network device to configure parameters related to the target core network device for the terminal device, and/or the handover request is used to request to establish a bearer with the target core network device.
  • the target core network device sends feedback information to the base station.
  • the feedback information is used to feed back parameters related to the target core network device, and bearer establishment information.
  • the base station sends a reconfiguration message to the terminal device.
  • the reconfiguration message includes reconfiguration reason information and/or a parameter effective time.
  • the reconfiguration reason information indicates that the reconfiguration reason is overloaded by the source core network device, and the parameter effective time is used to indicate parameters related to the target core network device. Effective time.
  • the terminal device sends a reconfiguration complete message to the base station or initiates a connection re-establishment process.
  • the base station sends a load balancing complete message to the source core network.
  • the source core network device sends the last data or data related information sent to the base station to the target core network device. If there is no interface between the access network devices, the base station sends the last to the target core network device. Received data or data related information.
  • method 400 includes:
  • the source core network device determines a first message, where the first message indicates that the source core network device is overloaded.
  • the source core network device sends the first message to an access network device, where the access network
  • the device is configured to perform, according to the first message, an operation of migrating the terminal device from the source core network device to the target core network device, where the target core network device and the source core network device support different communication systems.
  • the source core network device sends a first message indicating an overload to the access network device when determining that the user is overloaded, so that the access network device performs the terminal according to the first message.
  • the operation of migrating from the source core network device to the target core network device enables the terminal device to be migrated from the source core network device to the target core network device, solves the congestion problem of the source core network, and can implement load balancing between the core network devices. To improve the user experience.
  • the method further includes: the source core network device sends a ninth message to the target core network device, where the ninth message is used to indicate that the source core network device is last. Data sent to the access network device.
  • the method further includes: the source core network device receiving an eighth message sent by the access network device, where the eighth message is used to indicate that the terminal device has been The source core network device migrates to the target core network device.
  • FIG. 6 illustrates a method for congestion processing in accordance with yet another embodiment of the present application.
  • method 500 includes:
  • the terminal device receives a second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection, and establish, with the access network device, a device related to the target core network device.
  • a second connection where the first connection is a connection established between the terminal device and the access network device and related to the source core network device, where the target core network device and the source core network device support Different communication systems.
  • the terminal device receives the second message sent by the access network device, where the second message is used to indicate that the terminal device releases the source core network established between the access network device and the access network device.
  • the second message includes first indication information and/or second indication information, where the first indication information is used to indicate a reason for releasing the first connection, First The second indication information is used to indicate the target core network device.
  • the method further includes: the terminal device releasing the first connection according to the second message; the terminal device sending a third message to the access network device The third message is used to request to establish the second connection with the access network device.
  • the third message includes third indication information, where the third indication information is used to indicate that the reason for requesting to establish the second connection is that the source core network device is overloaded.
  • FIG. 7 illustrates a method for congestion processing in accordance with yet another embodiment of the present application. As shown in FIG. 7, method 600 includes:
  • the terminal device receives a fourth message sent by the access network device, where the fourth message includes a parameter related to the target core network device, where the fourth message is used to instruct the terminal device to reconfigure according to the parameter.
  • a connection the first connection is a connection established between the terminal device and the access network device and related to the source core network device, where the target core network device is different from the source core network device Communication system.
  • the terminal device receives the fourth message sent by the access network device, where the fourth message is used to instruct the terminal device to reconfigure and source the core according to parameters related to the target core network device.
  • the first connection associated with the network device Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate a reason for reconfiguring the first connection.
  • the fifth indication information is used to indicate the effective time of the parameter.
  • the parameter includes at least one of the following parameters: a parameter related to the quality of service QoS, a security key, and a parameter related to a network slice to which the target core network device belongs. .
  • the method further includes: the terminal device reconfiguring the first connection according to the parameter.
  • the terminal device re-configures the first connection according to the parameter, including: the terminal After the effective time, the device reconfigures the first connection according to the parameter.
  • FIG. 8 illustrates a method for congestion processing in accordance with still another embodiment of the present application.
  • Method 700 includes:
  • the terminal device receives a sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to establish a connection related to the target core network device with the access network device by using a connection re-establishment process.
  • the terminal device is caused to migrate from the source core network device to the target core network device, and the target core network device and the source core network device support different communication systems.
  • the terminal device receives the sixth message sent by the access network device, and the sixth message is used to trigger the terminal device to establish a target core with the access network device through the connection re-establishment process.
  • the network device is connected to the network device, thereby enabling the terminal device to migrate from the source core network device to the target core network device, solving the congestion problem of the source core network device, implementing load balancing between the core network devices, and improving the user experience.
  • the sixth message includes sixth indication information, where the sixth indication information is used to indicate a reason for establishing the connection.
  • the method further includes: the terminal device initiates a connection re-establishment process according to the sixth message, and establishes the connection with the access network device.
  • Apparatus 10 includes:
  • the transceiver module 11 is configured to receive a first message sent by the source core network device, where the first message is used to indicate that the source core network device is overloaded;
  • the processing module 12 is configured to perform, according to the first message, an operation of migrating the terminal device from the source core network device to the target core network device, where the target core network device and the source core network device support different communications system.
  • the access network device after receiving the first message indicating the overload sent by the source core network device, performs an operation of migrating the terminal device from the source core network device to the target core network device, so that the terminal device can enable the terminal device to
  • the source core network migrates to the target core network to solve the congestion problem of the source core network device, and can implement load balancing between the core network devices to improve the user experience.
  • the operation of causing the terminal device to migrate from the source core network device to the target core network device includes: controlling the transceiver module to send a second message to the terminal device, where The second message is used to indicate that the terminal device releases the first connection, and establishes, with the access network device, a second connection related to the target core network device, where the first connection is the terminal device and the A connection established between the access network devices and the source core network device.
  • the second message includes first indication information and/or second indication information, where the first indication information is used to indicate a reason for releasing the first connection,
  • the second indication information is used to indicate the target core network device.
  • the operation of the terminal device to migrate from the source core network device to the target core network device may further include: controlling the transceiver module to receive the third message sent by the terminal device.
  • the third message is used to request to establish the second connection with the access network device; and the second connection is established with the terminal device according to the third message.
  • the third message includes third indication information, where the third indication information is used to indicate that the reason for requesting to establish the second connection is that the source core network device is overloaded.
  • the operation of causing the terminal device to migrate from the source core network device to the target core network device includes: controlling the transceiver module to send a fourth message to the terminal device, where The fourth message includes a parameter related to the target core network, where the fourth message is used to instruct the terminal device to reconfigure the first connection according to the parameter, where the first connection is the terminal device and the A connection established between the access network devices and the source core network device.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate a reason for reconfiguring the first connection.
  • the fifth indication information is used to indicate the effective time of the parameter.
  • the parameter includes at least one of the following parameters: a parameter related to the quality of service QoS, a security key, and a parameter related to a network slice to which the target core network device belongs. .
  • the operation of the terminal device to migrate from the source core network device to the target core network device may further include: controlling the transceiver module to send the fifth message to the target core network device. a message, the fifth message is used to request the target core network device to configure the parameter, and/or the fifth message is used to request to establish a bearer with the target core network device.
  • the operation of causing the terminal device to migrate from the source core network device to the target core network device includes: controlling the transceiver module to send a sixth message to the terminal device, where The sixth message is used by the terminal device to establish a connection related to the target core network device with the access network device by triggering a connection re-establishment procedure.
  • the sixth message includes sixth indication information, where the sixth indication information is used to indicate a reason for establishing the connection.
  • the operation of migrating the terminal device from the source core network device to the target core network device includes: controlling, between the access network device and the core network device Hosting.
  • the transceiver module 11 is further configured to: send the first to the target core network device.
  • the seventh message is used to indicate the last received data of the transceiver module.
  • the transceiver module 11 is further configured to: send an eighth message to the source core network device, where the eighth message is used to indicate that the terminal device has been used by the source core The network device migrates to the target core network device.
  • the access network device may refer to the process of the method 100 corresponding to the embodiment of the present application, and the respective units/modules in the access network device and the foregoing other operations and/or functions are respectively implemented in the method 100.
  • the corresponding process for the sake of brevity, will not be described here.
  • FIG. 10 shows a core network device according to an embodiment of the present application.
  • the core network device 20 includes:
  • the processing module 21 is configured to determine a first message, where the first message indicates that the core network device is overloaded;
  • the transceiver module 22 is configured to send the first message to the access network device, where the access network device is configured to perform, according to the first message, the migration of the terminal device from the core network device to the target core network device. Operation, the target core network device and the core network device support different communication systems.
  • the core network device sends a first message indicating an overload to the access network device when determining that the user is overloaded, so that the access network device performs the setting of the terminal from the core network device to the target according to the first message.
  • the operation of the core network device migration enables the terminal device to be migrated from the core network device to the target core network device, solves the congestion problem of the core network, and implements load balancing between the core network devices to improve the user experience.
  • the transceiver module 22 is further configured to: send a ninth message to the target core network device, where the ninth message is used to indicate that the core network device finally connects to the The data sent by the network access device.
  • the transceiver module 22 is further configured to: receive an eighth message sent by the access network device, where the eighth message is used to indicate that the terminal device has been used by the core The network device migrates to the target core network device.
  • the core network device may refer to the method 400 corresponding to the embodiment of the present application.
  • the details of the respective units/modules in the core network device and the other operations and/or functions described above are respectively omitted for the sake of brevity.
  • FIG. 11 shows a terminal device according to an embodiment of the present application.
  • the terminal device 30 includes a processing module 31 and a transceiver module 32:
  • the processing module 31 is configured to control the transceiver module 32 to receive a second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection, and the access network device Establishing a second connection related to the target core network device, where the first connection is a connection established between the terminal device and the access network device and related to the source core network device, where the target core is The network device and the source core network device support different communication systems.
  • the terminal device receives the second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection related to the source core network device established between the access network device and the access network device. And establishing, with the access network device, a second connection related to the target core network device. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the second message includes first indication information and/or second indication information, where the first indication information is used to indicate a reason for releasing the first connection,
  • the second indication information is used to indicate the target core network device.
  • the processing module 31 is further configured to: release the first connection according to the second message;
  • the transceiver module 32 is further configured to send a third message to the access network device, where the third message is used to request to establish the second connection with the access network device.
  • the third message includes third indication information, where the third indication information is used to indicate that the reason for requesting to establish the second connection is that the source core network device is overloaded.
  • the terminal device may refer to the process of the method 500 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 500.
  • the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 500.
  • it will not be repeated here.
  • the processing module 31 is configured to control the transceiver module 32 to receive a fourth message sent by the access network device, where the fourth message includes parameters related to the target core network device, and the fourth message is used to Instructing the terminal device to reconfigure the first connection according to the parameter, where the first connection is related to the source core network device established between the terminal device and the access network device
  • the connection, the target core network device and the source core network device support different communication systems.
  • the terminal device receives the fourth message sent by the access network device, where the fourth message is used to instruct the terminal device to reconfigure the first connection related to the source core network device according to the parameter related to the target core network device. . Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the fourth message includes fourth indication information and/or fifth indication information, where the fourth indication information is used to indicate a reason for reconfiguring the first connection.
  • the fifth indication information is used to indicate the effective time of the parameter.
  • the parameter includes at least one of the following parameters: a parameter related to the quality of service QoS, a security key, and a parameter related to a network slice to which the target core network device belongs. .
  • the processing module 31 is further configured to: reconfigure the first connection according to the parameter.
  • the processing module 31 is specifically configured to: after the effective time, according to the parameter The first connection is configured.
  • the terminal device may refer to the process of the method 600 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 600.
  • the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 600.
  • it will not be repeated here.
  • the processing module 31 is configured to control the transceiver module 32 to receive a sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to reestablish the process and the access network through a connection.
  • the device establishes a connection related to the target core network device, so that the terminal device is migrated from the source core network device to the target core network device, and the target core network device and the source core network device support different communication systems.
  • the terminal device receives the sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to establish a connection with the target core network device between the access network device and the access network device through the connection re-establishment process. . Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the sixth message includes sixth indication information, where The sixth indication information is used to indicate the reason for establishing the connection.
  • the processing module 31 is further configured to: initiate, according to the sixth message, a connection re-establishment procedure, to enable the terminal device to establish the connection with the access network device.
  • the terminal device may refer to the process of the method 700 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 700.
  • the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 700.
  • it will not be repeated here.
  • FIG. 12 illustrates an access network device in accordance with another embodiment of the present application.
  • the access network device 100 includes a processor 110 and a transceiver 120.
  • the processor 110 is connected to the transceiver 120.
  • the access network device 100 further includes a memory 130, and the memory 130 and the processor 110. Connected.
  • the processor 110, the memory 130, and the transceiver 120 can communicate with each other through an internal connection path.
  • the transceiver 120 is configured to receive a first message sent by a source core network device, where the first message is used to indicate that the source core network device is overloaded, and the processor 110 is configured to use, according to the first The message performs an operation of migrating the terminal device from the source core network device to the target core network device, where the target core network device and the source core network device support different communication systems.
  • the access network device after receiving the first message indicating the overload sent by the source core network device, performs an operation of migrating the terminal device from the source core network device to the target core network device, so that the terminal device can enable the terminal device to
  • the source core network migrates to the target core network to solve the congestion problem of the source core network device, and can implement load balancing between the core network devices to improve the user experience.
  • the access network device 100 may refer to the access network device 10 corresponding to the embodiment of the present application, and each unit/module in the access network device and the foregoing other operations and/or functions are respectively implemented.
  • the corresponding flow in 100 will not be repeated here for brevity.
  • FIG. 13 is a schematic block diagram of a core network device according to an embodiment of the present application.
  • the core network device 200 includes a processor 210 and a transceiver 220.
  • the processor 210 is connected to the transceiver 220, and is optional.
  • the core network device 200 further includes a memory 230 that is coupled to the processor 210.
  • the processor 210, the memory 230, and the transceiver 220 can communicate with each other through an internal connection path.
  • the transceiver 220 is configured to determine a first message, where the first message indicates that the core network device is overloaded, and the transceiver 220 is configured to send the first message to an access network device, where The access network device is configured to perform, according to the first message, an operation of migrating the terminal device from the core network device to the target core network device, where the target core network device and the core network device support different communication systems.
  • the core network device sends a first message indicating an overload to the access network device when determining that the user is overloaded, so that the access network device performs the setting of the terminal from the core network device to the target according to the first message.
  • the operation of the core network device migration enables the terminal device to be migrated from the core network device to the target core network device, solves the congestion problem of the core network, and implements load balancing between the core network devices to improve the user experience.
  • the core network device 200 may refer to the core network device 20 corresponding to the embodiment of the present application, and each unit/module in the core network device and the foregoing other operations and/or functions are respectively implemented in the method 400.
  • the corresponding process for the sake of brevity, will not be described here.
  • FIG. 14 shows a schematic block diagram of a terminal device according to an embodiment of the present application.
  • the terminal device 300 includes a processor 310 and a transceiver 320.
  • the processor 310 is connected to the transceiver 320, optionally,
  • the terminal device 300 further includes a memory 330, and the memory 330 is connected to the processor 310.
  • the processor 310, the memory 330, and the transceiver 320 can communicate with each other through an internal connection path.
  • the processor 310 is configured to control the transceiver 310 to receive a second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection, and the access
  • the network device establishes a second connection related to the target core network device, where the first connection is a connection established between the terminal device and the access network device and related to the source core network device,
  • the target core network device and the source core network device support different communication systems.
  • the terminal device receives the second message sent by the access network device, where the second message is used to instruct the terminal device to release the first connection related to the source core network device established between the access network device and the access network device. And establishing, with the access network device, a second connection related to the target core network device. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the terminal device 300 may refer to the terminal device 30 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the other operations and/or functions described above are respectively implemented to implement the corresponding processes in the method 500. For the sake of brevity, it will not be repeated here.
  • the processor 310 is configured to control the transceiver 320 to receive a fourth message sent by the access network device, where the fourth message includes parameters related to the target core network device, and the fourth message is used to Instructing the terminal device to reconfigure the first connection according to the parameter, where the first connection is a connection established between the terminal device and the access network device and related to the source core network device, the target The core network device and the source core network device support different communication systems.
  • the terminal device receives the fourth message sent by the access network device,
  • the fourth message is used to instruct the terminal device to reconfigure the first connection related to the source core network device according to the parameter related to the target core network device. Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the terminal device 300 may refer to the terminal device 30 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the other operations and/or functions described above are respectively implemented to implement the corresponding processes in the method 600. For the sake of brevity, it will not be repeated here.
  • the processor 310 is configured to control the transceiver 320 to receive a sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to reestablish the process and the access network by using a connection.
  • the device establishes a connection related to the target core network device, so that the terminal device is migrated from the source core network device to the target core network device, and the target core network device and the source core network device support different communication systems.
  • the terminal device receives the sixth message sent by the access network device, where the sixth message is used to trigger the terminal device to establish a connection with the target core network device between the access network device and the access network device through the connection re-establishment process. . Therefore, the terminal device can be migrated from the source core network device to the target core network device, the congestion problem of the source core network device is solved, load balancing between the core network devices is realized, and the user experience is improved.
  • the terminal device 300 may refer to the terminal device 30 corresponding to the embodiment of the present application, and the respective units/modules in the terminal device and the foregoing other operations and/or functions respectively implement the corresponding processes in the method 700. For the sake of brevity, it will not be repeated here.
  • the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. 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 or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • Software modules can be located in random access memory, flash memory, read-only memory, programmable read-only Memory or electrically erasable programmable memory, registers, etc. are well established in the field of storage media.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • 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.
  • Another point that is shown or discussed between each other The coupling or direct coupling or communication connection 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. .

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Abstract

本申请提供一种用于拥塞处理的方法和设备，该方法包括：接入网设备接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；所述接入网设备根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。本申请的用于拥塞处理的方法，能够解决核心网设备的拥塞问题，并能实现核心网设备之间的负载均衡，提高用户体验。

Description

用于拥塞处理的方法和设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及用于拥塞处理的方法和设备。
背景技术
无线通信***中，基站能够同时与两个核心网设备连接。例如，基站能够同时连接长期演进(Long Term Evolution，LTE)***中的核心网设备和第五代移动通信(5th-Generation，5G)***中的核心网设备。但终端设备在建立连接时，只选择一个核心网设备进行接入。如果过多的终端设备接入同一个核心网设备，这个核心网设备就会出现拥塞。
由此，需要提供一种用于拥塞处理的方法，解决核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
发明内容
本申请提供一种用于拥塞处理的方法和设备，能够解决核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
第一方面，提供了一种用于拥塞处理的方法，包括：接入网设备接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；所述接入网设备根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
本申请的用于拥塞处理的方法，接入网设备接收到源核心网设备发送的指示过载的第一消息之后，执行使终端设备由源核心网设备向目标核心网设备迁移的操作，使得终端设备能够由源核心网迁移到目标核心网，解决源核心网设备的拥塞问题，并能实现核心网设备之间的负载均衡，提高用户体验。
结合第一方面，在第一方面的一种实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：向所述终端设备发送第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：接收所述终端设备发送的第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接；根据所述第三消息，与所述终端设备建立所述第二连接。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：向所述终端设备发送第四消息，所述第四消息中包括与所述目标核心网相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：向所述目标核心网设备发送第五消息，所述第五消息用于请求所述目标核心网设备配置所述参数，和/或，所述第五消息用于请求建立与所述目标核心网设备之间的承载。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
向所述终端设备发送第六消息，所述第六消息用于所述终端设备通过触发连接重建立流程与所述接入网设备建立与所述目标核心网设备相关的连接。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：建立与所述核心网设备之间的承载。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，在所述接入网设备建立与所述目标核心网设备之间的承载之后，所述方法还包括：所述接入网设备向所述目标核心网设备发送第七消息，所述第七消息用于指示所述接入网设备最后接收到的数据。
结合第一方面及其上述实现方式，在第一方面的另一实现方式中，所述方法还包括：所述接入网设备向所述源核心网设备发送第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
第二方面，提供了一种用于拥塞处理的方法，其特征在于，包括：源核心网设备确定第一消息，所述第一消息指示所述源核心网设备过载；所述源核心网设备向接入网设备发送所述第一消息，所述接入网设备用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
本申请实施例的用于拥塞处理的方法，源核心网设备在确定自己过载时，向接入网设备发送指示过载的第一消息，使得接入网设备根据第一消息执行将终端设由源核心网设备向目标核心网设备迁移的操作，使得终端设备能够由源核心网设备迁移到目标核心网设备，解决源核心网的拥塞问题，并能够实现使核心网设备之间的负载均衡，提高用户体验。
结合第二方面，在第二方面的一种实现方式中，所述方法还包括：所述源核心网设备向所述目标核心网设备发送第九消息，所述第九消息用于指示所述源核心网设备最后向所述接入网设备发送的数据。
结合第二方面及其上述实现方式，在第二方面的一种实现方式中，所述 方法还包括：所述源核心网设备接收所述接入网设备发送的第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
第三方面，提供了一种用于拥塞处理的方法，包括：终端设备接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
本申请的用于拥塞处理的方法，终端设备接收接入网设备发送的第二消息，第二消息用于指示终端设备释放与接入网设备之间建立的与源核心网设备相关的第一连接，并与接入网设备建立与目标核心网设备相关的第二连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
结合第三方面，在第三方面的一种实现方式中，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
结合第三方面及其上述实现方式，在第三方面的另一实现方式中，所述方法还包括：所述终端设备根据所述第二消息，释放所述第一连接；所述终端设备向所述接入网设备发送第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接。
结合第三方面及其上述实现方式，在第三方面的另一实现方式中，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
第四方面，提供了一种用于拥塞处理的方法，包括：终端设备接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
本申请的用于拥塞处理的方法，终端设备接收接入网设备发送的第四消 息，第四消息用于指示终端设备根据与目标核心网设备相关的参数重配置与源核心网设备相关的第一连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
结合第四方面，在第四方面的一种实现方式中，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
结合第四方面及其上述实现方式，在第四方面的另一实现方式中，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
结合第四方面及其上述实现方式，在第四方面的另一实现方式中，所述方法还包括：所述终端设备根据所述参数重配置所述第一连接。
结合第四方面及其上述实现方式，在第四方面的另一实现方式中，在所述第四消息中包括所述第五指示信息的情况下，所述终端设备根据所述参数重配置所述第一连接，包括：所述终端设备在所述生效时间之后，根据所述参数重配置所述第一连接。
第五方面，提供了一种用于拥塞处理的方法，包括：终端设备接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立目标核心网设备的相关，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
本申请的用于拥塞处理的方法，终端设备接收接入网设备发送的第六消息，第六消息用于触发终端设备通过连接重建立流程与接入网设备之间建立与目标核心网设备相关的连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
结合第五方面，在第五方面的一种实现方式中，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
结合第五方面及其上述实现方式，在第五方面的一种实现方式中，所述方法还包括：所述终端设备根据所述第六消息，发起连接重建立流程，与所述接入网设备建立所述连接。
第六方面，提供了一种接入网设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，所述接入网设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的功能模块。
第七方面，提供了一种核心网设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，所述核心网设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的功能模块。
第八方面，提供了一种终端设备，用于执行上述第三方面或第三方面的任意可能的实现方式中的方法。具体地，所述终端设备包括用于执行上述第三方面或第三方面的任意可能的实现方式中的方法的功能模块。
第九方面，提供了一种终端设备，用于执行上述第四方面或第四方面的任意可能的实现方式中的方法。具体地，所述终端设备包括用于执行上述第四方面或第四方面的任意可能的实现方式中的方法的功能模块。
第十方面，提供了一种终端设备，用于执行上述第五方面或第五方面的任意可能的实现方式中的方法。具体地，所述终端设备包括用于执行上述第五方面或第五方面的任意可能的实现方式中的方法的功能模块。
第十一方面，提供了一种接入网设备，包括处理器、存储器和收发器。所述处理器、所述存储器和所述收发器之间通过内部连接通路互相通信，传递控制和/或数据信号，使得所述接入网设备执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第十二方面，提供了一种核心网设备，包括处理器、存储器和收发器。所述处理器、所述存储器和所述收发器之间通过内部连接通路互相通信，传递控制和/或数据信号，使得所述核心网设备执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第十三方面，提供了一种终端设备，包括处理器、存储器和收发器。所述处理器、所述存储器和所述收发器之间通过内部连接通路互相通信，传递控制和/或数据信号，使得所述终端设备执行上述第三方面或第三方面的任意可能的实现方式中的方法。
第十四方面，提供了一种终端设备，包括处理器、存储器和收发器。所述处理器、所述存储器和所述收发器之间通过内部连接通路互相通信，传递控制和/或数据信号，使得所述终端设备执行上述第四方面或第四方面的任意可能的实现方式中的方法。
第十五方面，提供了一种终端设备，包括处理器、存储器和收发器。所述处理器、所述存储器和所述收发器之间通过内部连接通路互相通信，传递控制和/或数据信号，使得所述终端设备执行上述第五方面或第五方面的任意可能的实现方式中的方法。
第十六方面，提供了一种计算机可读介质，用于存储计算机程序，所述计算机程序包括用于执行上述第一方面或第一方面的任意可能的实现方式中的指令。
第十七方面，提供了一种计算机可读介质，用于存储计算机程序，所述计算机程序包括用于执行上述第二方面或第二方面的任意可能的实现方式中的指令。
第十八方面，提供了一种计算机可读介质，用于存储计算机程序，所述计算机程序包括用于执行上述第三方面或第三方面的任意可能的实现方式中的指令。
第十九方面，提供了一种计算机可读介质，用于存储计算机程序，所述计算机程序包括用于执行上述第四方面或第四方面的任意可能的实现方式中的指令。
第二十方面，提供了一种计算机可读介质，用于存储计算机程序，所述计算机程序包括用于执行上述第五方面或第五方面的任意可能的实现方式中的指令。
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图1是本申请实施例的应用场景的示意图。
图2是根据本申请实施例的用于拥塞处理的方法的示意性流程图。
图3是根据本申请一具体实施例的用于拥塞处理的方法的示意性流程图。
图4是根据本申请另一具体实施例的用于拥塞处理的方法的示意性流程图。
图5是根据本申请另一实施例的用于拥塞处理的方法的示意性流程图。
图6是根据本申请再一实施例的用于拥塞处理的方法的示意性流程图。
图7是根据本申请再一实施例的用于拥塞处理的方法的示意性流程图。
图8是根据本申请再一实施例的用于拥塞处理的方法的示意性流程图。
图9是根据本申请实施例的接入网设备的示意性框图。
图10是根据本申请实施例的核心网设备的示意性框图。
图11是根据本申请实施例的终端设备的示意性框图。
图12是根据本申请另一实施例的接入网设备的示意性框图。
图13是根据本申请另一实施例的核心网设备的示意性框图。
图14是根据本申请另一实施例的终端设备的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(Global System of Mobile communication，GSM)***、码分多址(Code Division Multiple Access，CDMA)***、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)***、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)***、LTE频分双工(Frequency Division Duplex，FDD)***、LTE时分双工(Time Division Duplex，TDD)、通用移动通信***(Universal Mobile Telecommunication System，UMTS)或全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信***、第五代移动通信(5th-Generation，5G)***，或者说新无线(New Radio，NR)***。
在本申请实施例中，终端设备可以包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、用户设备(User Equipment，UE)、手机(handset)及便携设备(portable equipment)、车辆(vehicle)等，该终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
本申请实施例所涉及到的接入网设备是一种部署在无线接入网中用以为终端设备提供无线通信功能的装置。所述接入网设备可以为基站，所述基站可以包括各种形式的宏基站，微基站，中继站，接入点等。在采用不同的无线接入技术的***中，具有基站功能的设备的名称可能会有所不同。例如 在LTE网络中，称为演进的节点B(Evolved NodeB，eNB或eNodeB)，在第三代(3rd Generation，3G)网络中，称为节点B(Node B)等等。
本申请实施例所涉及到的核心网设备是一种部署在核心网中用以为终端设备提供无线通信功能的装置。所述核心网设备可以为移动管理实体(Mobile Management Entity，MME)。
图1是本申请实施例的应用场景的示意图。如图1所示，基站同时与两个通信***中的核心网设备(LTE中的核心网设备和5G中的核心网设备)连接。当终端设备需要建立连接时，终端设备选择其中的一个核心网设备进行接入。当两个核心网设备中的一个出现拥塞时，需要将这个核心网设备上的终端设备迁移到另一个核心网设备，实现核心网设备之间的负载均衡。
本申请提供了一种用于拥塞处理的方法，能够解决上述场景下的核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
下面将详细描述根据本申请实施例的用于拥塞处理的方法。图2示出了根据本申请实施例的用于拥塞处理的方法。如图2所示，方法100包括：
S110，接入网设备接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；
S120，接入网设备根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
可选地，在S110中，第一消息中携带源核心网设备的标识，接入网设备接收到第一消息后，根据第一消息中的标识确定源核心网设备发生拥塞。进一步地，第一消息中还可以包括原因指示信息，原因指示信息用于指示拥塞是由于什么原因或者什么业务导致的。
可选地，在S110中，第一消息中携带源核心网设备的负载量，接入网设备根据源核心网设备的负载量确定源核心网过载。
可选地，在S120中，接入网设备根据第一消息，进行使终端设备由源核心网设备向目标核心网设备迁移的操作之前，接入网设备需要确定所述目标核心网设备和所述终端设备。
作为一个例子，第一消息中携带目标核心网设备的标识，接入网设备根据第一消息中的标识确定目标核心网设备。或者终端设备在与接入网设备建立连接时，终端设备向接入网设备上报自己能够接入的核心网设备的类型和 /或核心网设备的标识，接入网设备根据终端设备上报的信息确定目标核心网设备。或者接入网设备根据终端设备支持核心网设备的能力和目前的业务确定目标核心网。
作为一个例子，接入网设备在确定需要进行迁移的终端设备时，可以根据终端设备支持核心网设备的能力确定。例如，假设源核心网设备为LTE通信***中的核心网设备，目标核心网设备为5G通信***中的核心网设备，如果一个终端设备只支持LTE通信***中的核心网设备，该终端设备不方便从源核心网迁移到目标核心网设备。如果一个终端设备既支持LTE通信***中的核心网设备又支持5G通信***中的核心网设备，可以将该终端设备由源核心网设备迁移到目标核心网设备，以降低源核心网设备的负载。
进一步地，如果一个终端设备既支持源核心网设备又支持目标核心网设备，接入网设备可以根据终端设备的当前业务进行确定是否将该终端设备进行迁移。例如，如果终端设备的当前业务只有源核心网设备支持，则该终端设备不方便从源核心网切换到目标核心网。如果源核心网设备和目标核心网设备同时支持终端设备的当前业务，则可以将该终端设备由源核心网设备迁移到目标核心网设备，以降低源核心网设备的负载。
在本申请实施例中，接入网设备可以通过以下几种方法使终端设备由源核心网设备向目标核心网设备迁移。
方法一：
接入网设备向终端设备发送第二消息，第二消息用于指示终端设备释放第一连接，并与接入网设备建立与目标核心网设备相关的第二连接，第一连接为终端设备与接入网设备之间建立的与源核心网设备相关的连接。
可选地，在第二消息中包括第一指示信息和/或第二指示信息，第一指示信息指示释放第一连接的原因，第二指示信息指示目标核心网设备，第二指示信息例如可以是目标核心网设备的标识或目标核心网设备的类型。
相对应地，终端设备在接收到第二消息之后，根据第二消息释放第一连接，并向接入网设备发送用于请求与接入网设备建立第二连接的第三消息。
进一步地，第三消息中包括第三指示信息，第三指示信息用于指示请求建立第二连接的原因为源核心网设备过载。
更进一步地，接入网设备与终端设备建立第二连接之后，接入网设备与目标核心网设备建立承载。
万法二：
接入网设备向终端设备发送第四消息，第四消息中包括与目标核心网设备相关的参数，第四消息用于指示终端设备根据所述参数重配置第一连接，第一连接为终端设备与接入网设备之间建立的与源核心网设备相关的连接。
作为一个例子，第四消息中包括第四指示信息和/或第五指示信息，第四指示信息用于指示重配置第一连接的原因，第五指示信息用于指示所述参数的生效时间。
相对应地，终端设备在接收到第四消息之后，根据第四消息重配置第一连接。进一步地，如果第四消息中包括第五指示信息，终端设备在所述参数的生效时间之后，根据第四消息重配置第一连接。
具体地，在一些实施例中，接入网设备可以通过第五指示信息指示所述参数在终端设备接收到所述第四消息的时刻开始经过第一时长后生效。则终端设备在接收到第四消息时开启定时器，定时器的计时时长为所述第一时长。当定时器超时时，终端设备认为所述参数开始生效，根据所述参数重配置第一连接。或者终端设备在接收到第四消息时开启计时器，计时器的计时时长为所述第一时长，当计时器计时结束时，终端设备认为所述参数开始生效，根据所述参数配置第一连接。
可选地，接入网设备可以在向终端设备发送第四消息之前，向目标核心网设备发送第五消息，第五消息用于请求目标核心网设备配置所述参数，和/或第五消息用于请求建立与目标核心网设备之间的承载。或者接入网设备可以在向终端设备发送第四消息之后，向目标核心网设备发送第五消息。目标接入网设备接收到第五消息之后，为终端设备配置所述参数和/或与接入网设备建立承载。
在接入网设备与终端设备之间建立连接，并与目标核心网设备建立承载之后，接入网设备向目标核心网设备发送第七消息，第七消息用于指示接入网设备最后接收到的数据。和/或接入网设备向源核心网设备发送第八消息，第八消息用于指示终端设备已由源核心网设备迁移到目标核心网设备。
可选地，第七消息中包括接入网设备最后接收到的数据。或者第七消息中包括接入网设备最后接收到的数据的相关信息，这里的相关信息例如可以是数据包的标识。目标核心网设备接收到第七消息之后，根据第七消息可以确定源核心网设备已经向接入网设备发送过的数据。
在上述实施例中，所述参数包括下列参数中的至少一种：与服务质量(Quality of Service，QoS)相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
方法三：
接入网设备向终端设备发送第六消息，第六消息用于触发终端设备通过连接重建立流程与接入网设备建立与目标核心网设备相关的连接，以使得终端设备由源核心网设备向目标核心网设备迁移。
相对应地，终端设备在接收到第六消息之后，根据第六消息发起连接重建立流程，与接入网设备建立连接。
需要说明的是，本申请实施例中的连接重建立流程与现有技术中的相应流程相同。但区别点在于，本申请实施例中的连接重建立流程是由接入网设备触发的。
可选地，接入网设备可以在向终端设备发送第六消息之前，向目标核心网设备发送第五消息，第五消息用于请求目标核心网设备配置与所述目标核心网设备相关的参数，和/或第五消息用于请求建立与目标核心网设备之间的承载。或者接入网设备可以在向终端设备发送第六消息之后，向目标核心网设备发送第五消息。目标接入网设备接收到第五消息之后，为终端设备配置所述参数和/或与接入网设备建立承载。
在接入网设备与终端设备之间建立连接，并与目标核心网设备建立承载之后，接入网设备向目标核心网设备发送第七消息，第七消息用于指示接入网设备最后接收到的数据。或者接入网设备向源核心网设备发送第八消息，第八消息用于指示终端设备已由源核心网设备迁移到目标核心网设备。
可选地，第七消息中包括接入网设备最后接收到的数据。或者第七消息中包括接入网设备最后接收到的数据的相关信息，这里的相关信息例如可以是数据包的标识。目标核心网设备接收到第七消息之后，根据第七消息可以确定源核心网设备已经向接入网设备发送过的数据。
图3是根据本申请一具体实施例的用于处理拥塞的方法的示意性流程图。方法200与方法100的方法一相对应，为了避免重复，适当省略相关描述如图3所示，方法200包括：
S201，源核心网设备确定过载，源核心网设备向基站发送负载均衡请求。
S202，基站向终端设备发送连接释放消息；
连接释放消息中可以携带释放原因是由于源核心网设备过载，同时连接释放消息指示终端设备按照目标核心网方式发起连接建立流程。
S203，终端设备与基站建立连接；
S204，基站与目标核心网设备建立承载。
图4是本申请另一具体实施例的用于拥塞处理的方法，图4所示的方法300与方法100的方法二和方法三相对应，为了避免重复，适当省略相关描述。如图4所示，方法300包括：
S301，源核心网设备确定过载，源核心网设备向基站发送负载均衡请求。
S302，基站向目标核心网设备发送切换请求。
在S302中，切换请求用于请求目标核心网设备为终端设备配置与目标核心网设备相关的参数，和/或切换请求用于请求与目标核心网设备建立承载。
S303，目标核心网设备向基站发送反馈信息。
在S303中，反馈信息用于反馈与目标核心网设备相关的参数，以及承载建立信息。
S304，基站向终端设备发送重配置消息。
可选地，重配置消息中包括重配置原因信息和/或参数生效时间，重配置原因信息指示重配置原因为源核心网设备过载，参数生效时间用于指示与目标核心网设备相关的参数的生效时间。
S305，终端设备向基站发送重配置完成消息或发起连接重建立流程。
S306，基站向源核心网发送负载均衡完成消息。
S307，如果核心网设备之间有接口，源核心网设备向目标核心网设备发送最后向基站发送的数据或数据相关信息；如果接入网设备之间没有接口，基站向目标核心网设备发送最后接收到的数据或数据相关信息。
下面将结合图5从源核心网设备侧详细描述根据本申请实施例的用于拥塞处理的方法。应理解，源核心网设备侧描述的源核心网设备、目标核心网设备、接入网设备与终端设备的交互与接入网设备侧的描述相同，为避免重复，适当省略相关描述。如图5所示，方法400包括：
S410，源核心网设备确定第一消息，所述第一消息指示所述源核心网设备过载；
S420，所述源核心网设备向接入网设备发送所述第一消息，所述接入网 设备用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的用于拥塞处理的方法，源核心网设备在确定自己过载时，向接入网设备发送指示过载的第一消息，使得接入网设备根据第一消息执行将终端设由源核心网设备向目标核心网设备迁移的操作，使得终端设备能够由源核心网设备迁移到目标核心网设备，解决源核心网的拥塞问题，并能够实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述方法还包括：所述源核心网设备向所述目标核心网设备发送第九消息，所述第九消息用于指示所述源核心网设备最后向所述接入网设备发送的数据。
在本申请实施例中，可选地，所述方法还包括：所述源核心网设备接收所述接入网设备发送的第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
下面将结合图6至图8从终端设备侧详细描述根据本申请实施例的用于拥塞处理的方法。
图6示出了根据本申请再一实施例的用于拥塞处理的方法。如图6所示，方法500包括：
S510，终端设备接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的用于拥塞处理的方法，终端设备接收接入网设备发送的第二消息，第二消息用于指示终端设备释放与接入网设备之间建立的与源核心网设备相关的第一连接，并与接入网设备建立与目标核心网设备相关的第二连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第 二指示信息用于指示所述目标核心网设备。
在本申请实施例中，可选地，所述方法还包括：所述终端设备根据所述第二消息，释放所述第一连接；所述终端设备向所述接入网设备发送第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接。
在本申请实施例中，可选地，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
图7示出了根据本申请再一实施例的用于拥塞处理的方法。如图7所示，方法600包括：
S610，终端设备接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的用于拥塞处理的方法，终端设备接收接入网设备发送的第四消息，第四消息用于指示终端设备根据与目标核心网设备相关的参数重配置与源核心网设备相关的第一连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
在本申请实施例中，可选地，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
在本申请实施例中，可选地，所述方法还包括：所述终端设备根据所述参数重配置所述第一连接。
在本申请实施例中，可选地，在所述第四消息中包括所述第五指示信息的情况下，所述终端设备根据所述参数重配置所述第一连接，包括：所述终端设备在所述生效时间之后，根据所述参数重配置所述第一连接。
图8示出了根据本申请再一实施例的用于拥塞处理的方法。如图8所示， 方法700包括：
S710，终端设备接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与目标核心网设备相关的连接，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请的用于拥塞处理的方法，终端设备接收接入网设备发送的第六消息，第六消息用于触发终端设备通过连接重建立流程与接入网设备之间建立与目标核心网设备相关的连接，由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
在本申请实施例中，可选地，所述方法还包括：所述终端设备根据所述第六消息，发起连接重建立流程，与所述接入网设备建立所述连接。
以上结合图2至图8详细描述了根据本申请实施例的用于拥塞处理的方法，下面将结合图9详细描述根据本申请实施例的接入网设备，如图9所示，接入网设备10包括：
收发模块11，用于接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；
处理模块12，用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的接入网设备接收到源核心网设备发送的指示过载的第一消息之后，执行使终端设备由源核心网设备向目标核心网设备迁移的操作，使得终端设备能够由源核心网迁移到目标核心网，解决源核心网设备的拥塞问题，并能实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：控制所述收发模块向所述终端设备发送第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
在本申请实施例中，可选地，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：控制所述收发模块接收所述终端设备发送的第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接；根据所述第三消息，与所述终端设备建立所述第二连接。
在本申请实施例中，可选地，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：控制所述收发模块向所述终端设备发送第四消息，所述第四消息中包括与所述目标核心网相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
在本申请实施例中，可选地，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
在本申请实施例中，可选地，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：控制所述收发模块向所述目标核心网设备发送第五消息，所述第五消息用于请求所述目标核心网设备配置所述参数，和/或，所述第五消息用于请求建立与所述目标核心网设备之间的承载。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：控制所述收发模块向所述终端设备发送第六消息，所述第六消息用于所述终端设备通过触发连接重建立流程与所述接入网设备建立与所述目标核心网设备相关的连接。
在本申请实施例中，可选地，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
在本申请实施例中，可选地，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：控制所述接入网设备建立与所述核心网设备之间的承载。
在本申请实施例中，可选地，在所述接入网设备建立与所述目标核心网设备之间的承载之后，所述收发模块11还用于：向所述目标核心网设备发送第七消息，所述第七消息用于指示所述收发模块最后接收到的数据。
在本申请实施例中，可选地，所述收发模块11还用于：向所述源核心网设备发送第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
根据本申请实施例的接入网设备可以参照对应本申请实施例的方法100的流程，并且，该接入网设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法100中的相应流程，为了简洁，在此不再赘述。
图10示出了根据本申请实施例的核心网设备，如图10所示，核心网设备20包括：
处理模块21，用于确定第一消息，所述第一消息指示所述核心网设备过载；
收发模块22，用于向接入网设备发送所述第一消息，所述接入网设备用于根据所述第一消息，进行使终端设备由所述核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述核心网设备支持不同的通信***。
因此，根据本申请实施例的核心网设备在确定自己过载时，向接入网设备发送指示过载的第一消息，使得接入网设备根据第一消息执行将终端设由该核心网设备向目标核心网设备迁移的操作，使得终端设备能够由该核心网设备迁移到目标核心网设备，解决该核心网的拥塞问题，并能够实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述收发模块22还用于：向所述目标核心网设备发送第九消息，所述第九消息用于指示所述核心网设备最后向所述接入网设备发送的数据。
在本申请实施例中，可选地，所述收发模块22还用于：接收所述接入网设备发送的第八消息，所述第八消息用于指示所述终端设备已由所述核心网设备迁移到所述目标核心网设备。
根据本申请实施例的核心网设备可以参照对应本申请实施例的方法400 的流程，并且，该核心网设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法400中的相应流程，为了简洁，在此不再赘述。
图11示出了根据本申请实施例的终端设备。如图11所示，终端设备30包括处理模块31和收发模块32：
所述处理模块31，用于控制所述收发模块32接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第二消息，第二消息用于指示终端设备释放与接入网设备之间建立的与源核心网设备相关的第一连接，并与接入网设备建立与目标核心网设备相关的第二连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
在本申请实施例中，可选地，所述处理模块31还用于：根据所述第二消息，释放所述第一连接；
所述收发模块32，还用于向所述接入网设备发送第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接。
在本申请实施例中，可选地，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
根据本申请实施例的终端设备可以参照对应本申请实施例的方法500的流程，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法500中的相应流程，为了简洁，在此不再赘述。
或者，所述处理模块31，用于控制所述收发模块32接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关 的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第四消息，第四消息用于指示终端设备根据与目标核心网设备相关的参数重配置与源核心网设备相关的第一连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
在本申请实施例中，可选地，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
在本申请实施例中，可选地，所述处理模块31还用于：根据所述参数重配置所述第一连接。
在本申请实施例中，可选地，在所述第四消息中包括所述第五指示信息的情况下，所述处理模块31具体用于：在所述生效时间之后，根据所述参数重配置所述第一连接。
根据本申请实施例的终端设备可以参照对应本申请实施例的方法600的流程，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法600中的相应流程，为了简洁，在此不再赘述。
或者，所述处理模块31，用于控制所述收发模块32接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与目标核心网设备相关的连接，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第六消息，第六消息用于触发终端设备通过连接重建立流程与接入网设备之间建立与目标核心网设备相关的连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
在本申请实施例中，可选地，所述第六消息中包括第六指示信息，所述 第六指示信息用于指示建立所述连接的原因。
在本申请实施例中，可选地，所述处理模块31还用于：根据所述第六消息，发起连接重建立流程，使所述终端设备与所述接入网设备建立所述连接。
根据本申请实施例的终端设备可以参照对应本申请实施例的方法700的流程，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法700中的相应流程，为了简洁，在此不再赘述。
图12示出了根据本申请另一实施例的接入网设备。如图12所示，接入网设备100包括处理器110和收发器120，处理器110和收发器120相连，可选地，该接入网设备100还包括存储器130，存储器130与处理器110相连。其中，处理器110、存储器130和收发器120可以通过内部连接通路互相通信。其中，所述收发器120，用于接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；所述处理器110，用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的接入网设备接收到源核心网设备发送的指示过载的第一消息之后，执行使终端设备由源核心网设备向目标核心网设备迁移的操作，使得终端设备能够由源核心网迁移到目标核心网，解决源核心网设备的拥塞问题，并能实现核心网设备之间的负载均衡，提高用户体验。
根据本申请实施例的接入网设备100可以参照对应本申请实施例的接入网设备10，并且，该接入网设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法100中的相应流程，为了简洁，在此不再赘述。
图13示出了根据本申请实施例的核心网设备的示意性框图，如图13所示，核心网设备200包括：处理器210和收发器220，处理器210和收发器220相连，可选地，所述核心网设备200还包括存储器230，存储器230与处理器210相连。其中，处理器210、存储器230和收发器220可以通过内部连接通路互相通信。其中，所述收发器220，用于确定第一消息，所述第一消息指示所述核心网设备过载；所述收发器220，用于向接入网设备发送所述第一消息，所述接入网设备用于根据所述第一消息，进行使终端设备由所述核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述核心网设备支持不同的通信***。
因此，根据本申请实施例的核心网设备在确定自己过载时，向接入网设备发送指示过载的第一消息，使得接入网设备根据第一消息执行将终端设由该核心网设备向目标核心网设备迁移的操作，使得终端设备能够由该核心网设备迁移到目标核心网设备，解决该核心网的拥塞问题，并能够实现核心网设备之间的负载均衡，提高用户体验。
根据本申请实施例的核心网设备200可以参照对应本申请实施例的核心网设备20，并且，该核心网设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法400中的相应流程，为了简洁，在此不再赘述。
图14示出了根据本申请实施例的终端设备的示意性框图，如图14所示，终端设备300包括：处理器310和收发器320，处理器310和收发器320相连，可选地，所述终端设备300还包括存储器330，存储器330与处理器310相连。其中，处理器310、存储器330和收发器320可以通过内部连接通路互相通信。其中，所述处理器310，用于控制所述收发器310接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第二消息，第二消息用于指示终端设备释放与接入网设备之间建立的与源核心网设备相关的第一连接，并与接入网设备建立与目标核心网设备相关的第二连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
根据本申请实施例的终端设备300可以参照对应本申请实施例的终端设备30，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法500中的相应流程，为了简洁，在此不再赘述。
或者，所述处理器310，用于控制所述收发器320接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第四消息， 第四消息用于指示终端设备根据与目标核心网设备相关的参数重配置与源核心网设备相关的第一连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
根据本申请实施例的终端设备300可以参照对应本申请实施例的终端设备30，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法600中的相应流程，为了简洁，在此不再赘述。
或者，所述处理器310，用于控制所述收发器320接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与目标核心网设备相关的连接，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
因此，根据本申请实施例的终端设备接收接入网设备发送的第六消息，第六消息用于触发终端设备通过连接重建立流程与接入网设备之间建立与目标核心网设备相关的连接。由此，能够使得终端设备由源核心网设备向目标核心网设备迁移，解决源核心网设备的拥塞问题，实现核心网设备之间的负载均衡，提高用户体验。
根据本申请实施例的终端设备300可以参照对应本申请实施例的终端设备30，并且，该终端设备中的各个单元/模块和上述其他操作和/或功能分别为了实现方法700中的相应流程，为了简洁，在此不再赘述。
应理解，本申请实施例的处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读 存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DR RAM)。应注意，本文描述的***和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，)ROM、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应所述以权利要求的保护范围为准。

Claims (58)

  1. 一种用于拥塞处理的方法，其特征在于，包括：
    接入网设备接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；
    所述接入网设备根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  2. 根据权利要求1所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    向所述终端设备发送第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
  3. 根据权利要求2所述的方法，其特征在于，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
  4. 根据权利要求2或3所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：
    接收所述终端设备发送的第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接；
    根据所述第三消息，与所述终端设备建立所述第二连接。
  5. 根据权利要求4所述的方法，其特征在于，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
  6. 根据权利要求1所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    向所述终端设备发送第四消息，所述第四消息中包括与所述目标核心网相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
  7. 根据权利要求6所述的方法，其特征在于，所述第四消息中包括第 四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
  8. 根据权利要求6或7所述的方法，其特征在于，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
  9. 根据权利要求6至8中任一项所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：
    向所述目标核心网设备发送第五消息，所述第五消息用于请求所述目标核心网设备配置所述参数，和/或，所述第五消息用于请求建立与所述目标核心网设备之间的承载。
  10. 根据权利要求1所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    向所述终端设备发送第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与所述目标核心网设备相关的连接。
  11. 根据权利要求10所述的方法，其特征在于，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：
    建立与所述核心网设备之间的承载。
  13. 根据权利要求12所述的方法，其特征在于，在所述接入网设备建立与所述目标核心网设备之间的承载之后，所述方法还包括：
    所述接入网设备向所述目标核心网设备发送第七消息，所述第七消息用于指示所述接入网设备最后接收到的数据。
  14. 根据权利要求1至13中任一项所述的方法，其特征在于，所述方法还包括：
    所述接入网设备向所述源核心网设备发送第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
  15. 一种用于拥塞处理的方法，其特征在于，包括：
    源核心网设备确定第一消息，所述第一消息指示所述源核心网设备过载；
    所述源核心网设备向接入网设备发送所述第一消息，所述接入网设备用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  16. 根据权利要求15所述的方法，其特征在于，所述方法还包括：
    所述源核心网设备向所述目标核心网设备发送第九消息，所述第九消息用于指示所述源核心网设备最后向所述接入网设备发送的数据。
  17. 根据权利要求15或16所述的方法，其特征在于，所述方法还包括：
    所述源核心网设备接收所述接入网设备发送的第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
  18. 一种用于拥塞处理的方法，其特征在于，包括：
    终端设备接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  19. 根据权利要求18所述的方法，其特征在于，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
  20. 根据权利要求18或19所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述第二消息，释放所述第一连接；
    所述终端设备向所述接入网设备发送第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接。
  21. 根据权利要求20所述的方法，其特征在于，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
  22. 一种用于拥塞处理的方法，其特征在于，包括：
    终端设备接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网 设备支持不同的通信***。
  23. 根据权利要求22所述的方法，其特征在于，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
  24. 根据权利要求22或23所述的方法，其特征在于，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
  25. 根据权利要求22至24中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述参数重配置所述第一连接。
  26. 根据权利要求25所述的方法，其特征在于，在所述第四消息中包括所述第五指示信息的情况下，所述终端设备根据所述参数重配置所述第一连接，包括：
    所述终端设备在所述生效时间之后，根据所述参数重配置所述第一连接。
  27. 一种用于拥塞处理的方法，其特征在于，包括：
    终端设备接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与目标核心网设备相关的连接，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  28. 根据权利要求27所述的方法，其特征在于，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
  29. 根据权利要求27或28所述的方法，其特征在于，所述方法还包括：
    所述终端设备根据所述第六消息，发起连接重建立流程，与所述接入网设备建立所述连接。
  30. 一种接入网设备，其特征在于，包括：
    收发模块，用于接收源核心网设备发送的第一消息，所述第一消息用于指示所述源核心网设备过载；
    处理模块，用于根据所述第一消息，进行使终端设备由所述源核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  31. 根据权利要求30所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    控制所述收发模块向所述终端设备发送第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
  32. 根据权利要求31所述的接入网设备，其特征在于，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
  33. 根据权利要求31或32所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包括：
    控制所述收发模块接收所述终端设备发送的第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接；
    根据所述第三消息，与所述终端设备建立所述第二连接。
  34. 根据权利要求33所述的接入网设备，其特征在于，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
  35. 根据权利要求30所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    控制所述收发模块向所述终端设备发送第四消息，所述第四消息中包括与所述目标核心网相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接。
  36. 根据权利要求35所述的接入网设备，其特征在于，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
  37. 根据权利要求35或36所述的接入网设备，其特征在于，所述参数包括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
  38. 根据权利要求35至37中任一项所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，还包 括：
    控制所述收发模块向所述目标核心网设备发送第五消息，所述第五消息用于请求所述目标核心网设备配置所述参数，和/或，所述第五消息用于请求建立与所述目标核心网设备之间的承载。
  39. 根据权利要求30所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    控制所述收发模块向所述终端设备发送第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与所述目标核心网设备相关的连接。
  40. 根据权利要求39所述的接入网设备，其特征在于，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
  41. 根据权利要求30至40中任一项所述的接入网设备，其特征在于，所述使终端设备由所述源核心网设备向目标核心网设备迁移的操作，包括：
    控制所述接入网设备建立与所述核心网设备之间的承载。
  42. 根据权利要求41所述的接入网设备，其特征在于，在所述接入网设备建立与所述目标核心网设备之间的承载之后，所述收发模块还用于：
    向所述目标核心网设备发送第七消息，所述第七消息用于指示所述收发模块最后接收到的数据。
  43. 根据权利要求30至42中任一项所述的接入网设备，其特征在于，所述收发模块还用于：
    向所述源核心网设备发送第八消息，所述第八消息用于指示所述终端设备已由所述源核心网设备迁移到所述目标核心网设备。
  44. 一种核心网设备，其特征在于，包括：
    处理模块，用于确定第一消息，所述第一消息指示所述核心网设备过载；
    收发模块，用于向接入网设备发送所述第一消息，所述接入网设备用于根据所述第一消息，进行使终端设备由所述核心网设备向目标核心网设备迁移的操作，所述目标核心网设备与所述核心网设备支持不同的通信***。
  45. 根据权利要求44所述的核心网设备，其特征在于，所述收发模块还用于：
    向所述目标核心网设备发送第九消息，所述第九消息用于指示所述核心网设备最后向所述接入网设备发送的数据。
  46. 根据权利要求44或45所述的核心网设备，其特征在于，所述收发模块还用于：
    接收所述接入网设备发送的第八消息，所述第八消息用于指示所述终端设备已由所述核心网设备迁移到所述目标核心网设备。
  47. 一种终端设备，其特征在于，包括：处理模块和收发模块；
    所述处理模块，用于控制所述收发模块接收接入网设备发送的第二消息，所述第二消息用于指示所述终端设备释放第一连接，并与所述接入网设备建立与所述目标核心网设备相关的第二连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  48. 根据权利要求47所述的终端设备，其特征在于，所述第二消息中包括第一指示信息和/或第二指示信息，所述第一指示信息用于指示释放所述第一连接的原因，所述第二指示信息用于指示所述目标核心网设备。
  49. 根据权利要求47或48所述的终端设备，其特征在于，所述处理模块还用于：
    用于根据所述第二消息，释放所述第一连接；
    所述收发模块，还用于向所述接入网设备发送第三消息，所述第三消息用于请求与所述接入网设备建立所述第二连接。
  50. 根据权利要求49所述的终端设备，其特征在于，所述第三消息中包括第三指示信息，所述第三指示信息用于指示请求建立所述第二连接的原因为所述源核心网设备过载。
  51. 一种终端设备，其特征在于，包括处理模块和收发模块；
    所述处理模块，用于控制所述收发模块接收接入网设备发送的第四消息，所述第四消息中包括与目标核心网设备相关的参数，所述第四消息用于指示所述终端设备根据所述参数重新配置第一连接，所述第一连接为所述终端设备与所述接入网设备之间建立的与所述源核心网设备相关的连接，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  52. 根据权利要求51所述的终端设备，其特征在于，所述第四消息中包括第四指示信息和/或第五指示信息，所述第四指示信息用于指示重配置所述第一连接的原因，所述第五指示信息用于指示所述参数的生效时间。
  53. 根据权利要求51或52所述的终端设备，其特征在于，所述参数包 括下列参数中的至少一种：与服务质量QoS相关的参数、安全密钥、以及与所述目标核心网设备所属的网络切片相关的参数。
  54. 根据权利要求51至53中任一项所述的终端设备，其特征在于，所述处理模块还用于：
    根据所述参数重配置所述第一连接。
  55. 根据权利要求54所述的终端设备，其特征在于，在所述第四消息中包括所述第五指示信息的情况下，所述处理模块具体用于：
    在所述生效时间之后，根据所述参数重配置所述第一连接。
  56. 一种终端设备，其特征在于，包括：处理模块和收发模块；
    所述处理模块，用于控制所述收发模块接收接入网设备发送的第六消息，所述第六消息用于触发所述终端设备通过连接重建立流程与所述接入网设备建立与目标核心网设备相关的连接，以使得所述终端设备由源核心网设备向所述目标核心网设备迁移，所述目标核心网设备与所述源核心网设备支持不同的通信***。
  57. 根据权利要求56所述的终端设备，其特征在于，所述第六消息中包括第六指示信息，所述第六指示信息用于指示建立所述连接的原因。
  58. 根据权利要求56或57所述的终端设备，其特征在于，所述处理模块还用于：
    根据所述第六消息，发起连接重建立流程，使所述终端设备与所述接入网设备建立所述连接。
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CN114424617B (zh) * 2019-09-30 2022-12-13 英国电讯有限公司 蜂窝电信网络
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US20220345939A1 (en) 2022-10-27
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US20200059824A1 (en) 2020-02-20
KR102475109B1 (ko) 2022-12-07
KR20190140938A (ko) 2019-12-20
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