WO2018032741A1

WO2018032741A1 - Terminal handover method, apparatus and equipment

Info

Publication number: WO2018032741A1
Application number: PCT/CN2017/074296
Authority: WO
Inventors: 吴昊
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-08-17
Filing date: 2017-02-21
Publication date: 2018-02-22
Also published as: CN107770829A

Abstract

Disclosed in the embodiments of the present invention are a terminal handover method, apparatus and equipment, the method comprising: a first opposite terminal receiving a first handover message; and the first opposite terminal performing a handover process of a terminal on the basis of the first handover message, the first handover message comprising at least: an identifier of the terminal, and network segment information that has been selected by the terminal.

Description

Terminal switching method, device and device

Technical field

Embodiments of the present invention relate to, but are not limited to, the field of wireless communication technologies, and in particular, to a terminal switching method, apparatus, and device.

Background technique

At present, the 3GPP organization is discussing the next generation network technology. In the network architecture, the concept of network slice is introduced, that is, the concept of a logical network is introduced in the physical network, and each network slice can provide a complete set. All user plane and control plane functions for a certain type of business, or a certain type of scenario. Through network fragmentation technology, the terminal can choose to use one network fragment according to its own service, or choose to use multiple network fragments to enjoy the services provided by the network.

Since the concept of network fragmentation is introduced and the functions provided by the network are logically divided, when the terminal performs the handover operation, compared with the traditional mobility management, it is determined whether the need is needed by considering the characteristics of the fragmentation. Considering business continuity, it is also necessary to consider whether the target network element can support the services supported by the fragmentation of the source network element, etc., so the mobility management process will be more complicated. Therefore, the problem of handover of the terminal under the network fragmentation architecture needs to be solved.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a terminal handover method, device and device, which enable the terminal to complete handover under the network fragmentation architecture.

An embodiment of the present invention provides a terminal handover method, where the method includes:

The first peer end receives the first handover message;

The first peer end performs a handover process of the terminal according to the first handover message;

The first handover message includes at least: an identifier of the terminal and network fragmentation information selected by the terminal.

In the embodiment of the present invention, the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.

In the embodiment of the present invention, the first peer end receives the first handover message, and performs the handover process of the terminal, including:

The first peer end receives the first handover message sent by the source radio access network;

Determining, by the first peer end, the network fragment corresponding to the network fragmentation information selected by the terminal in the core network element according to the network fragmentation information selected by the terminal in the first handover message Connection or interface.

In the embodiment of the present invention, the method further includes:

The first peer end receives data sent by the terminal after moving to the target radio access network;

The first peer transmits the received data through the established connection or interface.

The embodiment of the invention further provides a terminal handover method, the method comprising:

The second peer end receives the second handover message;

The second peer end obtains network fragmentation information that has been selected by the terminal according to the second handover message.

The second peer end performs a handover process of the terminal according to the network fragmentation information that the terminal has selected;

The second handover message includes at least: an identifier of the terminal.

In the embodiment of the present invention, the second peer end obtains the network fragmentation information that the terminal has selected according to the second handover message, and includes:

And obtaining, by the second peer end, the network fragmentation information that is selected by the terminal from the locally stored terminal information according to the identifier of the terminal in the second handover message.

In the embodiment of the present invention, the second handover message further includes: network fragmentation information that the terminal has selected; correspondingly,

And obtaining, by the second peer end, the network fragmentation information that is selected by the terminal according to the second handover message, including:

The second peer reads the network fragmentation information that has been selected by the terminal in the received second handover message.

In the embodiment of the present invention, the second peer end performs the handover process of the terminal according to the network fragmentation information that the terminal has selected, including:

The second peer end selects a target core network element according to the network fragmentation information that the terminal has selected;

The second peer sends a re-allocation request message to the target core network element, where the re-allocation request message includes the network fragmentation information that the terminal has selected.

The third peer end receives the third handover message;

The third peer end performs a handover process of the terminal according to the third handover message;

The third handover message includes at least: network fragmentation information that has been selected by the terminal.

The information required for network fragmentation selection, including one or more of the following: type of terminal, service Type, terminal subscription data.

In the embodiment of the present invention, the third peer end performs the handover process of the terminal according to the third handover message, and includes:

After receiving the third handover message, the third peer end selects a network fragment for the terminal according to the network fragmentation information selected by the terminal in the third handover message;

The third peer end sends a fourth handover message to the radio access network element, where the fourth handover message is used to notify the network element of the radio access network that the core network element serving the terminal changes;

The third peer end receives data sent by the terminal forwarded by the network element of the radio access network.

The embodiment of the invention further provides a terminal switching device, the device comprising:

The first receiving unit 501 is configured to receive the first switching message;

The first processing unit 502 is configured to perform a handover process of the terminal according to the first handover message;

In the embodiment of the present invention, the first receiving unit 501 is configured to receive the first switching message sent by the source radio access network;

The first processing unit 502 is configured to establish, according to the network fragmentation information selected by the terminal in the first handover message, a network corresponding to the network fragmentation information selected by the terminal in the core network element. The connection or interface of the slice.

In the embodiment of the present invention, the device further includes:

The second receiving unit 503 is configured to receive, after the terminal moves to the target radio access network, Data sent;

The first sending unit 504 is configured to transmit the received data through the established connection or interface.

The embodiment of the present invention provides a radio access network element, where the radio access network element includes: the terminal switching apparatus described above.

The third receiving unit 701 is configured to receive the second switching message.

The first obtaining unit 702 is configured to obtain network fragmentation information that has been selected by the terminal according to the second handover message.

The second processing unit 703 is configured to perform a handover process of the terminal according to the network fragmentation information that the terminal has selected;

The second handover message includes at least: an identifier of the terminal.

The first obtaining unit 702 is configured to read the network fragmentation information that has been selected by the terminal in the received second handover message.

In the embodiment of the present invention, the second processing unit 703 includes:

The first selection subunit 7031 is configured to select a target core network element according to the network fragmentation information that the terminal has selected;

The first sending sub-unit 7032 is configured to send a re-allocation request message to the target core network element, where the re-allocation request message includes the network fragmentation information that the terminal has selected.

The embodiment of the present invention provides a core network element, where the core network element includes: the terminal switching apparatus described above.

The fourth receiving unit 901 is configured to receive a third switching message.

The third processing unit 902 is configured to perform a handover process of the terminal according to the third handover message;

In the embodiment of the present invention, the third processing unit 902 includes:

The second selection sub-unit 9021 is configured to: after receiving the third handover message, select a network fragment for the terminal according to the network fragmentation information selected by the terminal in the third handover message;

The second sending subunit 9022 is configured to send a fourth switching message to the radio access network network element, where the fourth switching message is used to notify the network element of the radio access network that the core network element serving the terminal occurs. Variety;

The first receiving subunit 9023 is configured to receive data sent by the terminal forwarded by the radio access network element.

The embodiment of the present invention further provides a core network element, where the core network element includes: the terminal switching apparatus described above.

The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for implementing the above method.

The embodiment of the present invention includes: the first peer end receives the first handover message; the first peer end performs the handover procedure of the terminal according to the first handover message; wherein the first handover message is at least The identifier of the terminal and the network fragmentation information selected by the terminal. In the process of the terminal handover, the radio access network element or the core network element exchanges the network fragment information selected by the terminal, and the radio access network element or the source core network element may be used by the information source. The target wireless access network element or the target core network element is selected, and finally the terminal completes the handover under the network fragmentation architecture.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a schematic diagram of the overall architecture of a next generation mobile communication network;

2 is a schematic flowchart of a method for switching a terminal according to Embodiment 1 of the present invention;

FIG. 3 is a schematic flowchart of a method for switching a terminal according to Embodiment 2 of the present invention;

4 is a schematic flowchart of a terminal handover method according to Embodiment 3 of the present invention;

FIG. 5 is a schematic structural diagram of a terminal switching apparatus according to Embodiment 4 of the present invention; FIG.

FIG. 6 is another schematic structural diagram of a terminal switching apparatus according to Embodiment 4 of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a terminal switching apparatus according to Embodiment 5 of the present invention; FIG.

8 is a schematic structural diagram of a second processing unit according to Embodiment 5 of the present invention;

FIG. 9 is a schematic structural diagram of a terminal switching apparatus according to Embodiment 6 of the present invention;

FIG. 10 is a schematic structural diagram of a third processing unit according to Embodiment 6 of the present invention.

Detailed

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

First, a brief introduction to the overall architecture of the next generation mobile communication network, as shown in Figure 1:

The NextGen UE refers to a next-generation terminal, and NextGen RAN refers to a next-generation wireless access. Network, NextGen Core refers to the next generation core network, Data Network is the data network. In the embodiment of the present invention, the above three entities respectively use the terminal, the radio access network element, and the core network element.

In the above overall architecture, the core network element is further fragmented, that is, a set is established according to certain criteria for managing and serving a certain type of terminal. After network fragmentation, you can combine different types of terminals or different types of services to optimize the configuration and use of resources. For example, you can configure a network fragment for a terminal with only the calling service. The configuration is performed, and the QoS (Quality of Service) bearer resources are allocated to the terminals of the high-reliability service, the delay of the service is guaranteed to be as short as possible, and the service continuity is not damaged. Therefore, the terminal can use one network fragment according to its own service selection, or can choose to use multiple network fragments to enjoy the services provided by the network.

In a mobile communication network, a cell has a certain coverage, that is, each physical network element can only provide services within a certain range. When the terminal moves out of the range of the physical network element service, it needs to The service is provided by other network elements. This process of replacing the service network element is called handover. The handover is to ensure that the terminal can continuously receive the services provided by the network.

Embodiment 1

The embodiment of the invention provides a method for switching a terminal. As shown in FIG. 2, the method includes:

Step 201: The first peer end receives the first handover message, where the first handover message includes at least: an identifier of the terminal and network fragmentation information that the terminal has selected;

Step 202: The first peer end performs a handover process of the terminal according to the first handover message.

Here, the first peer end may include: a target radio access network network element; correspondingly, in the embodiment of the present invention, the terminal switches from one (source) radio access network element to another (target) radio Access network element.

In the embodiment of the present invention, the network fragmentation information that the terminal has selected refers to the network fragment that the network has selected for the terminal, and may be a network fragment or multiple network fragments.

The network fragmentation information selected by the terminal may be any of the following methods:

1) a network fragment identification, or a combination of a network fragmentation identifier and a specific terminal information of the network fragment;

Here, when the network has only one fragment, the network fragment identifier is, for example, an ID. When there are multiple fragments, the network fragment identifier may be an ID list. When using network fragmentation, different identifiers may represent network fragments that provide different services. For example, ID=NS001, which means that network fragments with only the calling service are provided; ID=NS002, which means network fragmentation that provides high-latency services.

When the network fragmentation identifier is used, it may be classified according to different business logic private networks according to the service classification. The logical private network refers to the network allocated according to the requirements of the private network and certain access criteria under the same physical network element. Resources are only used by the company's designated terminal, such as ID=NS003, which identifies China's power grid; ID=NS004, which identifies China National Petroleum Corporation.

In addition to the network fragmentation identifier, each network fragmentation identifier may also include "network fragmentation-specific terminal information", or the network fragmentation identifier may also be used in combination with "network fragmentation-specific terminal information". The specific terminal information of the network fragment refers to related parameters of the terminal in different network fragments. For example, ID=NS0001+ "terminal reachability detection period", in the embodiment, the "terminal reachability detection period" refers to a specific parameter in the network fragment whose ID is NS0001.

or,

2) a combination of a network fragment name, or a network fragment name, and a specific terminal information of the network fragment;

For example, the network fragment name (Name)=MO only slice, the identifier provides a service with only the calling service, and Name=High latency Slice, which identifies the network fragment that provides high-latency services. Like 1), when Name=China Power Grid, it can represent this is the logical private network of China Power Grid, Name=PetroChina, on behalf of this is the logical private network of PetroChina; the network segment specific terminal information and 1) The same, no longer detailed.

or,

3) a combination of network fragmentation capability, or network fragmentation capability and network segmentation specific terminal information;

The example is similar to 2), for example, the network fragmentation capability (Capability)=MO only or Capability=High latency, and the network fragment-specific terminal information is the same as in 1).

or,

4) Information required for network fragmentation selection, including one or more of the following: type of terminal, Type of service, subscription data of the terminal;

The operator can determine which one or more network fragments to use to provide services for the terminal according to the information required for the network fragment selection.

In the embodiment of the present invention, the method further includes:

In the process of the terminal handover, the radio access network element or the core network element exchanges the network fragment information selected by the terminal, and the radio access network element or the source core network element may be used by the information source. The target wireless access network element or the target core network element is selected, and finally the terminal completes the handover under the network fragmentation architecture.

Embodiment 2

The embodiment of the invention provides a method for switching a terminal. As shown in FIG. 3, the method includes:

Step 301: The second peer end receives the second handover message, where the second handover message includes at least: an identifier of the terminal.

Step 302: The second peer end obtains network fragmentation information that has been selected by the terminal according to the second handover message.

Step 303: The second peer end performs a handover process of the terminal according to the network fragmentation information that the terminal has selected.

Here, the second peer end may include: a source core network element, and correspondingly, the terminal will switch from one (source) core network element to another (target) core network element.

In the embodiment of the present invention, the network fragmentation information selected by the terminal may be any of the following methods:

or,

4) The information required for network fragmentation selection, including one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal;

In the embodiment of the present invention, the second handover message may further include: network fragmentation information that the terminal has selected; correspondingly,

Here, the selecting the target core network element according to the network fragmentation information that the terminal has selected includes:

Selecting a core network element of all network fragments indicated in the network fragmentation information selected by the terminal as the target core network element; or

If the core network element that can support all network fragments is not found, the core network element that supports the most network fragments selected by the terminal is selected as the target core network element. For example, the network segment selected by the terminal has NS1, NS2, and NS3. The alternate core network element has network element 1: supports NS1, and network element 2: supports NS1 and NS2, and selects network element 2 as the target core network. yuan.

Embodiment 3

The embodiment of the invention further provides a terminal switching method, as shown in FIG. 4, the method includes:

Step 401: The third peer end receives the third handover message, where the third handover message includes: at least the network fragmentation information that the terminal has selected;

Step 402: The third peer end performs a handover process of the terminal according to the third handover message.

In the embodiment of the present invention, the third peer end may include: a target core network element, and correspondingly, the terminal will switch from one (source) core network element to another (target) core network element.

When using the network fragmentation identifier, it may be classified according to different business logic private networks according to the service classification. The logical private network refers to the same physical network element, according to the needs of the private network and a certain connection. The network resources allocated by the criteria are only used by the terminal designated by the company, for example, ID=NS003, which identifies China's power grid; ID=NS004, which identifies China Petroleum.

or,

The third peer end sends a fourth handover message (for example, a status update notification message) to the radio access network network element, where the fourth handover message is used to notify the radio access network element as a core serving the terminal. The network element changes;

The embodiments of the present invention further provide an apparatus and an apparatus for implementing the foregoing method embodiments. All the implementation manners of the foregoing method embodiments are applicable to the following embodiments of the apparatus, and the same technical effects can be achieved.

Embodiment 4

The embodiment of the invention provides a terminal switching device. As shown in FIG. 5, the device includes:

In the embodiment of the present invention, the terminal switches from one (source) radio access network element to another (target) radio access network element.

Here, when the network has only one fragment, the network fragment identifier is, for example, an ID, when there are multiple When fragmenting, the network fragment identifier can be a list of IDs. When using network fragmentation, different identifiers may represent network fragments that provide different services. For example, ID=NS001, which means that network fragments with only the calling service are provided; ID=NS002, which means network fragmentation that provides high-latency services.

or,

The operator can decide which one or which to use based on the information required for the network segmentation selection. Network fragmentation provides services for the terminal.

In the embodiment of the present invention, as shown in FIG. 6, the device further includes:

The second receiving unit 503 is configured to receive data sent by the terminal after moving to the target radio access network;

The embodiment of the present invention further provides a radio access network element, where the radio access network element includes: the terminal switching apparatus described in FIG. 5 or FIG. 6.

Embodiment 5

The embodiment of the invention provides a terminal switching device. As shown in FIG. 7, the device includes:

The second handover message includes at least: an identifier of the terminal.

In this embodiment of the present invention, the terminal will switch from one (source) core network element to another (target) core network element.

or,

Or,

In the embodiment of the present invention, as shown in FIG. 8, the second processing unit 703 includes:

The embodiment of the present invention further provides a core network element, where the core network element includes: the terminal switching apparatus described in FIG. 7 or FIG.

Embodiment 6

The embodiment of the invention further provides a terminal switching device. As shown in FIG. 9, the device includes:

or,

Or,

In the embodiment of the present invention, as shown in FIG. 10, the third processing unit 902 includes:

The second sending subunit 9022 is configured to send a fourth handover message to the radio access network network element, where the fourth handover message is used to notify the radio access network element to change the core network element serving the terminal ;

The embodiment of the present invention further provides a core network element, where the core network element includes: the terminal switching apparatus described in FIG. 9 or FIG.

The embodiments of the present invention are described in detail below in conjunction with application examples.

Application Example 1 (exchange of fragmentation information between radio access network elements)

In this application embodiment, the terminal moves to the edge of the network element of the radio access network, and needs to switch to another radio access network element, but is still in the service scope of the same core network element, and the source wireless access The network element selects the target radio access network element according to the direction in which the terminal moves and the location of the target radio access network element.

Step 1: The network element of the source radio access network sends a handover request to the network element of the target access network. The request message includes the identifier of the terminal to be switched and the network fragmentation information selected by the terminal.

The network segmentation information that the terminal has selected for the terminal is a network fragment that is selected by the current network for the terminal, and may be a network fragment or multiple network fragments. The network segmentation information selected by the terminal can be in the following forms:

A): Network fragment identification or (network fragment identification + network fragment specific terminal information):

When there is only one shard, the network shard ID is an ID. When there are multiple shards, it is one. List

When using network fragmentation, different identifiers may represent network fragments that provide different services. For example, ID=NS001, which identifies a network fragment that provides only the calling service, ID=NS002, and identifies the network fragment that provides high-latency services.

When the network fragmentation identifier is used, it may be based on different business logic private networks. The logical private network refers to network resources allocated according to the requirements of the private network and certain access criteria under the same physical network element. It is only used by the terminal designated by the company, such as ID=NS003, which identifies China Power Grid, ID=NS004, and identifies China Petroleum.

In addition to the network fragmentation identifier, each network fragmentation identifier may also include "network fragmentation-specific terminal information", or the network fragmentation identifier may also be used in combination with "network fragmentation-specific terminal information". The "network fragment-specific terminal information" refers to related parameters of the terminal in different network fragments. For example, (ID=NS0001+ "terminal reachability detection period"), in this example, "terminal reachability detection period" refers to a specific parameter in the network fragment whose ID is NS0001.

or,

B): network fragment name or (network fragment name + network fragment specific terminal information):

For example, Name=MO only Slice, which identifies a service that provides only the calling service, and Name=High latency Slice, which identifies the network fragment that provides high-latency services. Like A), when Name=China Power Grid, it can represent this is the logical private network of China Power Grid, Name=PetroChina, representing this is the logical private network of PetroChina. The "network fragment specific terminal information" is the same as in A).

or,

C): network fragmentation capability or (network fragmentation capability + network fragmentation specific terminal information):

The example is similar to B), such as Capability=MO only or Capability=High latency. The "network fragment specific terminal information" is the same as in A).

or,

D): Information required for network fragmentation selection: it may be one or more of the information: the type of the terminal, the type of the service, the subscription data of the terminal, and the operator can determine which network or network to use. The film provides services for the terminal.

Step 2: After receiving the handover request message, the target radio access network element receives the The selected network fragmentation information "establishes a connection or interface with the network fragment corresponding to the "network fragmentation information selected by the terminal" in the core network element.

Step 3: After the terminal moves to the target radio access network element and sends data to the target access network element, the target access network element may connect or interface with the network segment of the core network established according to the previous step. The terminal's data is sent to the core network for communication.

Application Embodiment 2 (exchange of fragmentation information between core network elements)

Compared with the first embodiment, the terminal in this embodiment not only moves to the edge of the cell but also moves to the edge of the core network element service range, and needs to perform handover across the core network element.

Step 1: The network element of the radio access network sends a handover request to the source core network element currently serving the terminal, and the request message includes the identifier of the terminal that needs to be switched.

Step 2: The source core network element obtains the “network fragmentation information selected by the terminal” from the locally stored terminal information according to the identifier of the terminal. The specific form of the "network fragmentation information selected by the terminal" is the same as that in the application embodiment 1. The description is not repeated here.

Step 3: The source core network element selects the target core network element according to the “network fragmentation information selected by the terminal”. The selection method is:

1) Select a core network element that supports all network fragments indicated in the "selected network fragmentation information of the terminal" as the target core network element; or

2) If the core network element that can support all network fragments is not found, the core network element that supports the most network fragments selected by the terminal is selected as the target core network element. For example, the network segment selected by the terminal has NS1, NS2, and NS3. The alternate core network element has network element 1: support NS1, and network element 2: support NS1 and NS2, and select network element 2 as the target core network element. .

Step 4: The source core network element sends a re-allocation request to the target core network element, and the request message includes the network fragment information that the terminal has selected.

Step 5: After receiving the re-allocation request message, the target core network element selects a network fragment for the terminal according to the network fragmentation information selected by the terminal.

Here, if the target core network element cannot provide the network fragmentation information selected by all the terminals, the default network fragment is used to serve the terminal.

Step 6: The target core network element sends a status update notification message to the radio access network element, and informs that the core network element serving the terminal has changed, and then the radio access network element sends the terminal data to The target core network element implements communication.

Application Embodiment 3 (the fragmentation information is exchanged between the core network elements, but the fragmentation information is provided by the radio access network element)

Step 1: The network element of the radio access network sends a handover request to the source core network element that is currently serving the terminal. The request message includes the identifier of the terminal that needs to be switched, and the “network fragmentation information that the terminal has selected”.

Step 2: After receiving the handover request message, the source core network NE reads the network fragmentation information selected by the terminal.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

While the embodiments of the present invention have been described above, the described aspects are merely embodiments for facilitating understanding of the present invention. The technical solutions of the embodiments of the present invention may be modified or equivalently replaced by those skilled in the art without departing from the spirit and scope of the present invention, but the scope of protection of the present application is still defined by the claims. The scope shall prevail.

Industrial applicability

Claims

A terminal switching method, the method comprising:

The first peer end receives the first handover message;

The first peer end performs a handover process of the terminal according to the first handover message;

The first handover message includes: an identifier of the terminal and network fragmentation information selected by the terminal.
The terminal handover method according to claim 1, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal handover method according to claim 1, wherein the first peer end receives the first handover message and performs the handover procedure of the terminal, including:

The first peer end receives the first handover message sent by the source radio access network;

Determining, by the first peer end, the network fragment corresponding to the network fragmentation information selected by the terminal in the core network element according to the network fragmentation information selected by the terminal in the first handover message Connection or interface.
The terminal switching method according to claim 3, the method further comprising:

The first peer end receives data sent by the terminal after moving to the target radio access network;

The first peer transmits the received data through the established connection or interface.
A terminal switching method, the method comprising:

The second peer end receives the second handover message;

The second peer end obtains network fragmentation information that has been selected by the terminal according to the second handover message.

The second peer end performs a handover process of the terminal according to the network fragmentation information that the terminal has selected;

The second handover message includes: an identifier of the terminal.
The terminal handover method according to claim 5, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal handover method according to claim 5, wherein the second peer obtains the network fragmentation information that the terminal has selected according to the second handover message, and includes:

And obtaining, by the second peer end, the network fragmentation information that is selected by the terminal from the locally stored terminal information according to the identifier of the terminal in the second handover message.
The terminal handover method according to claim 5, wherein the second handover message further includes: network fragmentation information that the terminal has selected; correspondingly,

And obtaining, by the second peer end, the network fragmentation information that is selected by the terminal according to the second handover message, including:

The second peer reads the network fragmentation information that has been selected by the terminal in the received second handover message.
The terminal handover method according to claim 5, wherein the second peer end performs the handover process of the terminal according to the network fragmentation information that the terminal has selected, including:

The second peer end selects a target core network element according to the network fragmentation information that the terminal has selected;

The second peer sends a re-allocation request message to the target core network element, where the re-allocation request message includes the network fragmentation information that the terminal has selected.
A terminal switching method, the method comprising:

The third peer end receives the third handover message;

The third peer end performs a handover process of the terminal according to the third handover message;

The third handover message includes: network fragmentation information that has been selected by the terminal.
The terminal handover method according to claim 10, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal handover method according to claim 10, wherein the third peer performs the handover procedure of the terminal according to the third handover message, and includes:

After receiving the third handover message, the third peer end selects a network fragment for the terminal according to the network fragmentation information selected by the terminal in the third handover message;

The third peer end sends a fourth handover message to the radio access network element, where the fourth handover message is used to notify the network element of the radio access network that the core network element serving the terminal changes;

The third peer end receives data sent by the terminal forwarded by the network element of the radio access network.
A terminal switching device, the device comprising:

The first receiving unit (501) is configured to receive the first switching message;

The first processing unit (502) is configured to perform a handover process of the terminal according to the first handover message;

The first handover message includes: an identifier of the terminal and network fragmentation information selected by the terminal.
The terminal switching device according to claim 13, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal switching device according to claim 13, wherein

The first receiving unit (501) is configured to receive the first handover message sent by the source radio access network;

The first processing unit (502) is configured to set, according to the network fragmentation information selected by the terminal in the first handover message, to correspond to the network fragmentation information selected by the terminal in the core network element. The connection or interface of the network fragment.
The terminal switching device according to claim 15, further comprising:

a second receiving unit (503) configured to receive data sent by the terminal after moving to the target radio access network;

The first transmitting unit (504) is configured to transmit the received data through the established connection or interface.
A terminal switching device, the device comprising:

The third receiving unit (701) is configured to receive the second switching message;

The first obtaining unit (702) is configured to obtain network fragmentation information that has been selected by the terminal according to the second handover message.

The second processing unit (703) is configured to perform a handover process of the terminal according to the network fragmentation information that the terminal has selected;

The second handover message includes: an identifier of the terminal.
The terminal switching device according to claim 17, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal switching device according to claim 17, wherein the second handover message further comprises: network fragmentation information selected by the terminal; correspondingly,

The first obtaining unit (702) is configured to read the network fragmentation information selected by the terminal in the received second handover message.
The terminal switching device according to claim 17, wherein the second processing unit (703) comprises:

The first selection subunit (7031) is configured to select a target core network element according to the network fragmentation information selected by the terminal;

The first sending sub-unit (7032) is configured to send a re-allocation request message to the target core network element, where the re-allocation request message includes network fragmentation information that the terminal has selected.
A terminal switching device, the device comprising:

The fourth receiving unit (901) is configured to receive the third switching message;

The third processing unit (902) is configured to perform a handover process of the terminal according to the third handover message;

The third handover message includes: network fragmentation information that has been selected by the terminal.
The terminal switching device according to claim 21, wherein the network fragmentation information selected by the terminal is any one of the following methods:

a network fragment identifier, or a combination of a network fragment identifier and a specific terminal information of a network fragment; or

The combination of the network fragment name, or the network fragment name, and the terminal information specific to the network fragment; or,

a combination of network fragmentation capability, or network fragmentation capability, and network fragment-specific terminal information; or

The information required for network fragmentation selection includes one or more of the following: the type of the terminal, the type of the service, and the subscription data of the terminal.
The terminal switching device according to claim 21, wherein the third processing unit (902) comprises:

The second selection sub-unit (9021) is configured to: after receiving the third handover message, select a network fragment for the terminal according to the network fragmentation information selected by the terminal in the third handover message;

The second sending sub-unit (9022) is configured to send a fourth switching message to the radio access network network element, where the fourth switching message is used to notify the radio access network element to serve the core network element of the terminal Change

The first receiving subunit (9023) is configured to receive data sent by the terminal forwarded by the radio access network element.
A radio access network element, comprising: the terminal switching device according to any one of claims 13-16.
A core network element, comprising: the terminal switching device according to any one of claims 17 to 20; or the terminal switching device according to any one of claims 21-23.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 1-4.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 5-9.
A computer readable storage medium storing computer executable instructions for performing the method of any of claims 10-12.