WO2020258245A1

WO2020258245A1 - Information processing method used for switching and network device

Info

Publication number: WO2020258245A1
Application number: PCT/CN2019/093670
Authority: WO
Inventors: 尤心; 卢前溪
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-12-30
Also published as: CN112789894A

Abstract

Disclosed are an information processing method used for switching, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program. The method comprises: a first network device sending a first message to a second network device, the second network device being determined on the basis of a measurement result reported by a terminal device to the first network device, and the first message comprising at least one of the following: a first capability group of the terminal device, a first configuration of the first network device, and a first configuration of the second network device; the first network device receiving a second message fed back by the second network device, the second message comprising at least one of the following: a second capability group of the terminal device, a second configuration of the first network device, and a second configuration of the second network device; and the first network device sending the second message to the terminal device, the second message being used to instruct the terminal device to perform switching.

Description

Information processing method and network equipment for switching

Technical field

The present invention relates to the field of information processing technology, and in particular to an information processing method, network equipment, chip, computer readable storage medium, computer program product, and computer program for switching.

Background technique

In the existing handover process, when the terminal device receives the handover command, it will disconnect from the source base station. In order to achieve 0ms handover, a solution has been proposed to maintain the connection with the source base station while accessing the target base station. connection.

However, how to enable the target base station and the source base station to coordinate the capabilities and/or related configurations of the terminal device while maintaining the connection between the terminal device and the target base station and the source base station at the same time, the target did not propose an effective solution.

Summary of the invention

In order to solve the above technical problems, embodiments of the present invention provide an information processing method for switching, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program.

In a first aspect, an information processing method for handover is provided, and the method includes:

The first network device sends a first message to the second network device; wherein the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message includes at least one of the following One: the first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device;

The first network device receives a second message fed back by the second network device; wherein, the second message includes at least one of the following: a second capability group of the terminal device, a second configuration of the first network device , The second configuration of the second network device;

The first network device sends a second message to the terminal device, where the second message is used to instruct the network device to switch.

In a second aspect, an information processing method for handover is provided, and the method includes:

The second network device receives the first message sent by the first network device; wherein, the first message includes at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the The first configuration;

The second network device feeds back a second message to the first network device; wherein the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second network device The second configuration.

In a third aspect, a first network device is provided, including:

The first communication unit sends a first message to a second network device; wherein, the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message includes at least one of the following One: the first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device; receiving a second message fed back by the second network device; wherein, the second message contains At least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second configuration of the second network device; send a second message to the terminal device; the second message is used to indicate The terminal device performs handover.

In a fourth aspect, a second network device is provided, including:

The second communication unit receives a first message sent by a first network device; wherein the first message includes at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the second network device The first configuration of the first network device; the second message is fed back to the first network device; wherein the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, the second network The second configuration of the device.

In a fifth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the methods in the first aspect to the second aspect or each implementation manner thereof.

In a sixth aspect, a chip is provided for implementing the methods in the foregoing implementation manners.

Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or any of the implementations thereof method.

In a seventh aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

In an eighth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute any one of the first aspect to the second aspect or the method in each implementation manner thereof.

In a ninth aspect, a computer program is provided, which when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

By adopting the above solution, the first message and the second message that can be exchanged between the first network device and the second network device can indicate the capabilities of the terminal device and/or the configuration of the network device, and the capabilities and/or configuration Transmit to terminal equipment. In this way, the coordination of the capabilities of the terminal device and/or the configuration of the network device between the first network device and the second network device in the handover process is realized.

Description of the drawings

FIG. 1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a schematic diagram 1 of the flow of an information processing method for handover provided by an embodiment of the present application;

FIG. 3 is a schematic diagram 2 of the flow of an information processing method for handover provided by an embodiment of the present invention;

Figures 4 and 5 are two schematic diagrams of handover processing scenarios;

6 and 7 are two schematic diagrams of an information processing method for handover provided by an embodiment of the present invention;

FIG. 8 is a schematic diagram of a structure of a first network device provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of the composition structure of a second network device according to an embodiment of the present invention;

10 is a schematic diagram of the composition structure of a communication device provided by an embodiment of the present invention;

FIG. 11 is a schematic block diagram of a chip provided by an embodiment of the present application;

FIG. 12 is a second schematic diagram of a communication system architecture provided by an embodiment of the present application.

Detailed ways

In order to understand the features and technical content of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and description purposes only, and are not used to limit the embodiments of the present invention.

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of the present application may be as shown in FIG. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a UE 120 (or called a communication terminal or a terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with UEs located in the coverage area. Optionally, the network equipment 110 may be a network equipment (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a network equipment (NodeB, NB) in a WCDMA system, or an evolution in an LTE system Type network equipment (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment may be a mobile switching center, a relay station, an access point, In-vehicle devices, wearable devices, hubs, switches, bridges, routers, network side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one UE 120 located within the coverage area of the network device 110. "UE" as used herein includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another UE's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment. A UE set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal".

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between UEs 120.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

The embodiment of the present invention provides an information processing method for handover, as shown in FIG. 2, including:

Step 21: The first network device sends a first message to the second network device; wherein the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message includes the following At least one: the first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device;

Step 22: The first network device receives the second message fed back by the second network device; wherein, the second message contains at least one of the following: the second capability group of the terminal device, the second capability group of the first network device Configuration, the second configuration of the second network device;

Step 23: The first network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to switch.

Correspondingly, this embodiment also provides an information processing method for handover, as shown in FIG. 3, including:

Step 31: The second network device receives the first message sent by the first network device; wherein the first message contains at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the second The first configuration of the network device;

Step 32: The second network device feeds back a second message to the first network device; wherein, the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device , The second configuration of the second network device.

In this embodiment, the network device may be a base station on the network side; the first network device may be the source base station connected to the terminal device, and the second network device may be the target base station. The terminal device is a device that can simultaneously maintain a connection with the first network device and the second network device during handover.

First, the scenario of this embodiment will be described. The corresponding handover processing can be seen in FIG. 4, including:

The handover preparation phase includes steps 1-6 in the figure: the first network device sends measurement control to the terminal device; the terminal device sends a measurement report to the first network device after measuring multiple network devices or cells; the first network device The handover decision is made according to the measurement report (or combined with RRM information); the first network device sends a handover request to the second network device so that the second network device is ready to switch; the second network device performs handover permission control according to the handover request; the second network When the device determines to switch, it sends a switch request confirmation to the first network device.

Then proceed to the execution handover phase, including steps 7-11 in the figure. Specifically: the second network device generates RRC information, sends the RRC connection reconfiguration information to the first network device, and the first network device sends it through the RRC connection reconfiguration information To the terminal device; after the terminal device receives the RRC connection reconfiguration information, it performs handover processing according to the connection reconfiguration information; then the first network device transmits the SN status to the second network device; the terminal device synchronizes with the second network device, and then Receive the UL allocation by the second network device, and send the RRC connection reconfiguration complete message to the second network device.

Finally, it enters the handover completion stage, including 12-18 in the figure. Specifically: the second network device sends a path switch request to the MME to notify the MME terminal device to change the cell; the MME sends a bearer adjustment request to the serving gateway, and the MME switches the downlink path Processing; After the serving gateway completes the processing, it sends the bearer adjustment completion processing to the MME, and the MME sends a path switch request confirmation message to the second network device; the second network device notifies the first network device that the terminal device context is released by the first network The device releases resources.

Another switching scenario, for example, for some special scenarios, as shown in FIG. 5, for example, under high-speed movement or high-frequency conditions of the terminal device, frequent switching is required. Conditional handover avoids the problem that the handover preparation time is too long and the terminal device is too late to switch, and the handover command (HO command) is configured for the terminal device in advance. On the other hand, for the high-speed rail scenario, the running track of the terminal device is specific, so the first network device (first network device) can allocate the second network device (second network device) to the terminal device in advance, and in the HO command Contains conditions for triggering the terminal device to switch. When the configured conditions are met, the terminal device initiates an access request to the second network device.

Regarding this handover scenario, multiple target cells can be configured, that is, multiple second network devices (second network devices) can be configured. When the terminal device makes a judgment based on the configured condition, it can determine which second network device to synchronize with, that is, the target cell, and access the cell according to the satisfied condition.

In addition, another handover scenario corresponding to this embodiment may also include the following two architectures:

Based on dual-connection handover, in this case, during the handover, first add the second network device as an auxiliary contact (SN), then change the SN to the master node (MN) through role switching signaling, and finally change the second network device to the master node (MN). A network device is released, thereby achieving the effect of reducing the interruption time during handover.

Another architecture is based on eMBB handover. This handover is based on the handover process in Figure 4, except that when the terminal device receives a handover command (HO command), it continues to maintain the connection with the first network device and initiates to the second network device. In random access, the connection of the first network device is released only after the terminal device and the second network device are connected.

In this embodiment, both the first capability group of the terminal device and the second capability group of the terminal device include at least one capability;

And the capabilities included in the first capability group of the terminal device and the second capability group of the terminal device are the same, or at least partially different.

The capabilities of terminal equipment can be divided into wireless access-related capabilities and core network-related capabilities.

The first capability group of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.

The second set of capabilities of the terminal device includes at least one of the following:

The specific content contained in the first capability group and the second capability group may be different, or at least partly different. For example, the first capability group may include the first capability set, and the second capability group may include the second capability set. That is, when the first network device sends the first message to the second network device, the first capability group may include the first capability set and the second capability set; the second network device feeds back the second capability set to the first network device. When sending messages, the second capability group may include a third capability set and a fifth capability set. There may be multiple situations, which are not exhaustively listed in this embodiment.

In addition, the capabilities of the terminal device included in the above multiple capability sets are one or more capabilities; for example, the first capability set includes the total capabilities of the terminal device, and the total capabilities of the terminal device are all the capabilities of the terminal device. At least part of it. Similarly, the second capability set and the third capability set are the capabilities of the terminal device on the first network device side when the terminal device is handed over; and the capabilities of the terminal device on the second network device side can also be understood as the ability of the terminal device to It has at least part of all the capabilities, but the capabilities of the terminal devices corresponding to the first network device and the second network device may be at least partially different.

It should also be pointed out that the first configuration of the first network device and the second configuration of the first network device can be determined based on the second set of capabilities; the first configuration of the second network device, the second configuration of the second network device, It can be determined based on the third ability in combination. In addition, the first configuration of the first network device is the same as or different from the second configuration of the first network device; and/or, the first configuration of the second network device and/or the second configuration of the second network device Same or different.

Before the terminal device is switched, it may be before the first message is sent for the first network device.

The following describes the solution provided in this embodiment in multiple scenarios:

Scenario 1. The first network device sends the first capability group of the terminal device to the second network device; the second network device configures the first network device and the second network device based on the capability group of the terminal device. Described in conjunction with Figure 6, specifically:

1-2. The first network device configures a handover-based measurement event for the terminal, and when the terminal device determines that the handover condition is met, it reports a measurement report to the first network device. The first network device makes a switching decision according to the measurement report reported by the terminal, and selects at least one second network device.

What needs to be pointed out here is that the terminal can be pre-configured with multiple second network devices, and the first network device can select some of the second network devices from the multiple second network devices according to the measurement report reported by the terminal as this time The second network device of the handover process.

3. The first network device determines at least one second network device according to the measurement report; sends a handover request message to the second network device; it should be pointed out that the handover request message carries the first message in this embodiment.

Wherein, the first message may carry the first capability set of the terminal device; that is, the handover request message may include the first capability set of the terminal device, which can be understood as the total capability of the terminal device.

Specifically, the handover request message may be a HANDOVER REQUEST message, which is sent by the first network device to the second network device for preparing handover resources. The HANDOVER REQUEST includes IE: RRC Context, which includes the RRC Handover Preparation Information that carries the capabilities of the terminal device.

4-5. After the second network device receives the first message, the second network device responds with a handover request Ack (handover request Ack) message;

The handover request acknowledgement (handover request Ack) is sent by the second network device to the first network device for feeding back a handover request message. The information can carry the second message.

The message may include the second configuration of the first network device and the second configuration of the second network device. It should be understood that the second configuration of the first network device and the second configuration of the second network device are configurations performed by the second network device based on the capabilities of the terminal device.

6. The first network device receives the second message, and saves the second configuration of the first network device and the second configuration of the second network device contained in the second message. And the first network device forwards the second configuration of the first network device and the second configuration of the second network device to the terminal device through the switching command.

That is, the first network device receives the second message carried in the handover request confirmation message (HANDOVER REQUEST ACKNOWLEDGE), saves the configuration therein, and forwards it to the terminal device in the handover command.

Scenario 2: The first network device sends a second message to the terminal device, and the second network device side does not modify the second message.

The first message may include at least one of the following:

The first set of capabilities of the terminal device can be understood as the total capabilities of the terminal device;

The first configuration of the first network device;

The terminal capability corresponding to the first configuration of the first network device may be a fourth capability set;

The first configuration of the second network device;

The capability of the second network device; that is, the fifth capability set.

Specifically, the handover request message may be a HANDOVER REQUEST message, which is sent by the first network device to the second network device for preparing handover resources. The HANDOVER REQUEST includes IE: RRC Context, which includes the RRC Handover Preparation Information that carries UE capabilities. The ability and configuration of the first network device to configure the second network device may also be carried in RRC Handover Preparation Information.

4. The second network device performs management control after receiving the switching request, for example, it can perform at least one of the following:

The second network device generates a configuration based on the fifth capability set to configure the terminal;

The second network device configures the terminal based on the first and second network device;

The second network device determines the fifth capability set based on the first capability set and the fourth capability set and configures the terminal;

The second network device determines a fifth capability set based on the first capability set and the configuration of the first first network device, and configures the terminal based on the fifth capability set.

5. The second network device replies to a handover request confirmation (handover request Ack) message. Specifically, the handover request confirmation (handover request Ack) message is sent by the second network device to the first network device for feeding back the handover request message. The information can carry the second message.

Further, in the second message, the configuration is configured by the first network device based on the capabilities of the UE.

6. The first network device receives the handover request acknowledgment (handover request Ack) message, saves the configuration therein, and forwards it to the terminal device in the handover command.

The switching command of the first network device may carry the second message. Before sending the switching command, the first network device may also modify the configuration of the first network device and or the configuration of the second network device sent by the second network device.

It should be pointed out that when the first network device sends the second message to the terminal, the second message can also be modified, and specifically, it can include:

The method also includes:

Modify at least part of the content in the second message to obtain the third message; that is, use the modified second message as the third message;

And/or, add a fourth message to the second message to obtain the fifth message. That is, the second message to which the fourth message is added is regarded as the fifth message.

The modifying at least part of the content of the second message may be deleting part of the content in the second message, or it may be retaining but modifying the content in the second message. For example, the second message may include the first capability set, the second capability set, the fourth capability set, and the fifth capability set of the terminal device, and the second configuration of the first network device; deleting part of the content may be deleting The second configuration of the first network device. For another example, the second configuration of the first network device can be modified. It should be noted that the reference for modifying the second configuration of the first network device can be the third capability set; of course, when the second message contains the second configuration During the second configuration of the network device, the second configuration of the second network device can also be modified according to the third capability set.

The fourth message can also be added according to the actual situation. For example, the fourth message can be the second configuration of the second network device, that is, the second configuration of the second network device is added to the second message; of course, the fourth The message can also include other content, such as the third set of capabilities of the terminal device. In addition to its original content, the second message can also include the third set of capabilities of the terminal device and the second set of capabilities of the second network device. Configuration. For example, modify the number of cells in the second configuration of carrier aggregation and the configured MIMO layer in the second network device.

The sending of the second message to the terminal device may be one of the following: transparently transmitting/forwarding the second message to the terminal device; sending the third message to the terminal device; sending the fifth message to the terminal device.

In other words, the first network device may not modify or adjust the second message, but directly send the second message to the terminal device; of course, it may also send the modified second message to the terminal device; or Send the adjusted second message to the terminal device, that is, the second message with the fourth message added.

Scenario 3: A processing scenario where the configuration and/or capability modification is performed by the second network device, specifically:

The first message may carry at least one of the following

UE capabilities; namely the first set of capabilities;

The first configuration of the first network device;

The first network device configures the corresponding terminal capability (fourth capability set);

The second configuration of the second network device;

The second network device capability is the fifth capability set.

4. After the second network device receives the switching request, the second network device can modify the configuration sent by the original network device to include at least one of the following:

Reallocate the capabilities of the terminal device on the first network device side and/or the second network device side;

Generating a second configuration of the first network device based on the first configuration of the first network device;

Based on the first configuration of the second network device, a second configuration of the second network device is generated.

5. The second network device replies to a handover request acknowledgement (handover request Ack) message, where the handover request acknowledgement (handover request Ack) message is sent by the second network device to the first network device for feeding back the handover request message. The information can carry the second message.

Further, the message may include the second configuration of the first network device and the second configuration of the second network device. The second configuration of the first network device and the second configuration of the second network device are based on the UE. Ability to configure.

It can be seen that at least part of the content in the second message is different from the content in the first message.

6. The first network device receives the handover request Ack message, saves the configuration therein, and forwards it to the UE in the handover command.

Of course, in this scenario, the first network device may not modify the second message, but may also modify or adjust the second message. The specific manner is the same as that of scenario 2, and will not be repeated here.

Regarding the foregoing scenario, the handover request message contains handover preparation information (HandoverPreparationInformation), and an example of an information unit (IE) may be as follows:

Among them, "UE-CapabilityRAT-ContainerLis" characterizes the capabilities of terminal equipment.

The content of the handover request feedback message can be as follows:

The solution provided in this embodiment may also include handover processing for the target service, which is specifically described as follows:

When the capability of the terminal device meets the switching requirement of the target service, the instruction information for switching of the target service is sent to the second network device; wherein, the target service may be eMBB or DC.

Receive feedback information from the second network device.

Wherein, the first network device determines whether the terminal device meets the switching requirement of the target service according to the capability group of the terminal device.

The indication information is carried by a handover request message; the feedback information is carried by a handover request confirmation message.

For example, the first network device may add instruction information for switching of the target service and/or corresponding configuration information to the switching request message sent to the second network device. Wherein, the configuration information may include the number of carriers, etc., which is not exhaustive here.

Correspondingly, the second network device receives the instruction information for switching to the target service sent by the first network device, and sends feedback information to the first network device.

Wherein, after the second network device receives the instruction information for switching to the target service, the second network device determines whether it can support the switching requirement for the target service based on the instruction information. For example, it can judge whether it can support the switching of the target service according to its own configuration and/or capability, and when it is determined that the second network device supports the switching of the target service, add the indication and configuration for the target service in the feedback information; When it is determined that the second network device does not support the target service switching, non-acknowledgement information, such as NACK information, is added to the feedback information.

Correspondingly, when the feedback information of the second network device contains an indication for the target service, the first network device determines that the second network device supports switching of the target service, and obtains the target service from the feedback information Configuration.

The above-mentioned target business is eMBB or DC. With reference to Figure 7, the target service is eMBB as an example: if the second network device carries indication information in the handover request acknowledgement (handover request ack) message and the indication information corresponds to eMBB, it means that the second network device supports eMBB handover and The configuration carried is also based on eMBB.

Among them, the corresponding identification bit can be set for the target service. For example, when the handover request message or the handover request confirmation message is for the target service, the identification bit can be set to 1, otherwise it can be set to 0; that is, when the handover request message When the indication information for the switching of the target service is carried, the identifier corresponding to the target service can be set to 1. When the handover request confirmation message indicates that the second network device supports the switching of the target service, the target service can also be changed The corresponding identification position is 1, otherwise set to 0. Of course, this is only an example. When it is confirmed that the target service is included, the identifier can also be set to 0, which is determined according to the actual setting, and will not be repeated in this embodiment.

It can be seen that by adopting the above solution, the capabilities of the terminal device and/or the configuration of the network device can be indicated in the first message and the second message exchanged between the first network device and the second network device. / Or the configuration is transmitted to the terminal device. In this way, the coordination of the capabilities of the terminal device and/or the configuration of the network device between the first network device and the second network device in the handover process is realized.

The embodiment of the present invention provides a first network device, as shown in FIG. 8, including:

The first communication unit 51 sends a first message to a second network device; wherein the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message contains at least the following One: the first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device; receiving a second message fed back by the second network device; wherein, the second message It contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second configuration of the second network device; sending a second message to the terminal device; the second message is used To instruct the terminal device to switch.

Correspondingly, this embodiment also provides a second network device, as shown in FIG. 9, including:

The second communication unit 61 receives the first message sent by the first network device; wherein the first message includes at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the second network The first configuration of the device, the second message is fed back to the first network device; wherein, the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second The second configuration of the network device.

Although the contents that can be included in the first capability group and the second capability group are the same, in fact, the specific contents included in the first capability group and the second capability group may be different, or at least partly different. For example, the first capability group may include the first capability set, and the second capability group may include the second capability set. That is, when the first network device sends the first message to the second network device, the first capability group may include the first capability set and the second capability set; the second network device feeds back the second capability set to the first network device. When sending messages, the second capability group may include a third capability set and a fifth capability set. There may be multiple situations, which are not exhaustively listed in this embodiment.

Scenario 1. The first network device sends the first capability group of the terminal device to the second network device; the second network device configures the first network device and the second network device based on the capability group of the terminal device. specific:

1-2. The first communication unit 51 of the first network device configures a handover-based measurement event for the terminal, and when the terminal device determines that the handover condition is met, it reports a measurement report to the first network device.

The first network device also includes a first processing unit 52, which makes a handover decision based on the measurement report reported by the terminal and selects at least one second network device.

3. The first communication unit 51 of the first network device sends a handover request message to the second network device; it should be pointed out that the handover request message carries the first message in this embodiment.

4-5. After receiving the first message, the second communication sheet 61 of the second network device replies with a handover request Ack (handover request Ack) message;

6. The first communication unit 51 of the first network device receives the second message, and the first processing unit 52 saves the second configuration of the first network device and the second configuration of the second network device contained in the second message. And the first communication unit 51 of the first network device forwards the second configuration of the first network device and the second configuration of the second network device to the terminal device through the switching command.

1-2. Same as scenario 1 and will not be repeated.

3. The first processing unit 52 of the first network device determines at least one second network device according to the measurement report; the first communication unit 51 of the first network device sends a handover request message to the second network device; it should be pointed out that, The handover request message carries the first message in this embodiment.

The first message may include at least one of the following:

The first configuration of the first network device;

The first configuration of the second network device;

The capability of the second network device; that is, the fifth capability set.

4. The second communication unit 61 of the second network device, after receiving the switching request, the second processing unit 62 performs management control, for example, it can perform at least one of the following:

5. The second communication unit 61 of the second network device replies to a handover request confirmation (handover request Ack) message, specifically, the handover request confirmation (handover request Ack) message is sent by the second network device to the first network device for feedback Switch request message. The information can carry the second message.

6. The first communication unit 51 of the first network device receives the handover request acknowledgment (handover request Ack) message, saves the configuration therein, and forwards it to the terminal device in the handover command.

The switching command of the first network device may carry the second message. Before sending the switching command, the first processing unit 52 of the first network device may also modify the configuration of the first network device and/or the configuration of the second network device sent by the second network device. .

The first processing unit 52 modifies at least part of the content in the second message to obtain the third message;

And/or, add a fourth message to the second message to obtain the fifth message.

The first communication unit 51 performs one of the following: transparently transmitting/forwarding the second message to the terminal device; sending the third message to the terminal device; sending the fifth message to the terminal device.

1-3 is the same as scenario 2, so I won’t repeat it here.

4. After the second communication unit 61 of the second network device receives the switching request, the second processing unit 62 of the second network device may perform at least one of the following:

5. The second communication unit 61 of the second network device replies to a handover request Ack message, where the handover request Ack message is sent by the second network device to the first network device for feedback switching Request message. The information can carry the second message.

6. The first communication unit 51 of the first network device receives the handover request Ack message, saves the configuration therein, and forwards it to the UE in the handover command.

The first communication unit 51 of the first network device, when the capability of the terminal device meets the switching requirements of the target service, sends the instruction information for the switching of the target service to the second network device; wherein, the target service may be eMBB or DC .

The first communication unit 51 may also receive feedback information from the second network device.

The first processing unit 52 of the first network device determines whether the terminal device meets the switching requirement of the target service according to the capability group of the terminal device.

Correspondingly, the second communication unit 61 of the second network device receives the instruction information for switching to the target service sent by the first network device, and sends feedback information to the first network device.

Correspondingly, when the feedback information of the second network device contains an indication for the target service, the first processing unit 52 of the first network device determines that the second network device supports switching of the target service, and then the feedback Get the configuration for the target business from the information.

FIG. 10 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application. The communication device may be the aforementioned terminal device or network device in this embodiment. The communication device 700 shown in FIG. 10 includes a processor 710, and the processor 710 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 10, the communication device 700 may further include a memory 720. Wherein, the processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

The memory 720 may be a separate device independent of the processor 710, or may be integrated in the processor 710.

Optionally, as shown in FIG. 10, the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

The transceiver 730 may include a transmitter and a receiver. The transceiver 730 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 700 may specifically be a network device in an embodiment of the present application, and the communication device 700 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, details are not repeated here. .

Optionally, the communication device 700 may specifically be a terminal device or a network device in an embodiment of the application, and the communication device 700 may implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the application. It's concise, so I won't repeat it here.

FIG. 11 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 800 shown in FIG. 11 includes a processor 810, and the processor 810 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 11, the chip 800 may further include a memory 820. Wherein, the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiment of the present application.

The memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810.

Optionally, the chip 800 may further include an input interface 830. The processor 810 can control the input interface 830 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 800 may further include an output interface 840. The processor 810 can control the output interface 840 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in the various methods of the embodiment of the present application. For brevity, details are not described herein again.

Optionally, the chip can be applied to the terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the terminal device in the various methods of the embodiment of the present application. For brevity, details are not repeated here.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

FIG. 12 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 12, the communication system 900 includes a terminal device 910 and a network device 920.

Wherein, the terminal device 910 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding function implemented by the network device in the above method. For brevity, it will not be repeated here. .

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The aforementioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiment of the present application is intended to include but not limited to these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , I won’t repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Repeat it again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For brevity, I won't repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

An information processing method for handover, the method comprising:

The first network device sends a first message to the second network device; wherein the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message includes at least one of the following : The first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device;

The first network device receives the second message fed back by the second network device; wherein, the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the 2. The second configuration of the network device;

The first network device sends a second message to the terminal device, where the second message is used to instruct the terminal device to switch.
The method according to claim 1, wherein the first capability group of the terminal device and the second capability group of the terminal device both include at least one capability;

And the capabilities included in the first capability group of the terminal device and the second capability group of the terminal device are the same, or at least partially different.
The method according to claim 2, wherein the first capability group of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The method according to claim 2, wherein the second set of capabilities of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The method according to claim 1, wherein the first configuration of the first network device is the same as or different from the second configuration of the first network device;

And/or, the first configuration of the second network device and/or the second configuration of the second network device are the same or different.
The method according to any one of claims 1-5, wherein the method further comprises:

Modify at least part of the content in the second message to obtain the third message;

And/or, add a fourth message to the second message to obtain the fifth message.
The method according to claim 6, wherein the sending the second message to the terminal device includes one of the following:

Transparently transmit/forward the second message to the terminal device;

Sending a third message to the terminal device;

Send the fifth message to the terminal device.
The method according to claim 6, wherein the method further comprises:

Modify the second configuration of the first network device;

And/or modify the second configuration of the second network device.
8. The method according to any one of claims 1-8, wherein the sending the first message to the second network device is: the handover request message sent to the second network device carries the first message;

The receiving the second message fed back by the second network device is: receiving the second message carried in the handover request confirmation message sent by the second network device.
The method according to any one of claims 1-9, wherein the method further comprises:

When the capability of the terminal device meets the switching requirement of the target service, sending the instruction information for the switching of the target service to the second network device;

Receive feedback information from the second network device.
The method according to claim 10, wherein the indication information is carried by a handover request message; and the feedback information is carried by a handover request confirmation message.
The method according to claim 10, wherein the method further comprises:

When the feedback information of the second network device includes an indication for the target service, it is determined that the second network device supports switching of the target service, and the configuration for the target service is obtained from the feedback information.
An information processing method for handover, the method comprising:

The second network device receives the first message sent by the first network device; wherein, the first message includes at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the The first configuration;

The second network device feeds back a second message to the first network device; wherein, the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second The second configuration of the network device.
The method according to claim 13, wherein the first capability group of the terminal device and the second capability group of the terminal device both include at least one capability;

And the capabilities included in the first capability group of the terminal device and the second capability group of the terminal device are the same, or at least partially different.
The method according to claim 14, wherein the first capability group of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The method according to claim 14, wherein the second set of capabilities of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The method according to claim 13, wherein the first configuration of the first network device is the same as or different from the second configuration of the first network device;

And/or, the first configuration of the second network device and/or the second configuration of the second network device are the same or different.
The method according to any one of claims 13-17, wherein the method further comprises at least one of the following:

Reallocate the capabilities of the terminal device on the first network device side and/or the second network device side;

Generating a second configuration of the first network device based on the first configuration of the first network device;

Based on the first configuration of the second network device, a second configuration of the second network device is generated.
The method according to any one of claims 13-18, wherein:

The receiving the first message sent by the first network device is: receiving the first message carried in the handover request message sent by the first network device;

The feeding back the second message to the first network device is: sending the handover request confirmation message to the first network device to carry the second message.
The method according to any one of claims 13-19, wherein the method further comprises:

Receiving the instruction information for switching to the target service sent by the first network device;

Send feedback information to the first network device.
The method according to claim 20, wherein the indication information is carried by a handover request message; and the feedback information is carried by a handover request confirmation message.
The method of claim 20, wherein the method further comprises:

When it is determined that the second network device supports the target service switching, an indication and configuration for the target service are added to the feedback information.
A first network device, including:

The first communication unit sends a first message to a second network device; wherein, the second network device is determined based on the measurement result reported by the terminal device to the first network device; the first message includes at least one of the following One: the first capability group of the terminal device, the first configuration of the first network device, and the first configuration of the second network device; receiving a second message fed back by the second network device; wherein, the second message contains At least one of the following: the second capability group of the terminal device, the second configuration of the first network device, and the second configuration of the second network device; send a second message to the terminal device; the second message is used to indicate The terminal device performs handover.
The first network device according to claim 23, wherein the first capability group of the terminal device and the second capability group of the terminal device both include at least one capability;

And the capabilities included in the first capability group of the terminal device and the second capability group of the terminal device are the same, or at least partially different.
The first network device according to claim 24, wherein the first capability group of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The first network device according to claim 24, wherein the second set of capabilities of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The first network device according to claim 23, wherein the first configuration of the first network device is the same as or different from the second configuration of the first network device;

And/or, the first configuration of the second network device and/or the second configuration of the second network device are the same or different.
The first network device according to any one of claims 23-27, wherein the first network device further comprises:

The first processing unit modifies at least part of the content in the second message to obtain the third message;

And/or, add a fourth message to the second message to obtain the fifth message.
The first network device according to claim 28, wherein the first communication unit comprises one of the following:

Transparently transmit/forward the second message to the terminal device;

Sending a third message to the terminal device;

Send the fifth message to the terminal device.
The first network device according to claim 28, wherein the first processing unit modifies the second configuration of the first network device;

And/or modify the second configuration of the second network device.
The first network device according to any one of claims 23-30, wherein the handover request message sent by the first communication unit to the second network device carries the first message;

The first communication unit receives the second message carried in the handover request confirmation message sent by the second network device.
The first network device according to any one of claims 23-31, wherein the first communication unit, when the capability of the terminal device meets the switching requirement of the target service, sends the switching for the target service to the second network device Instruction information; Receive feedback information from the second network device.
The first network device according to claim 32, wherein the indication information is carried by a handover request message; and the feedback information is carried by a handover request confirmation message.
The first network device according to claim 32, wherein the first processing unit,

When the feedback information of the second network device includes an indication for the target service, it is determined that the second network device supports the target service switching, and the configuration for the target service is obtained from the feedback information.
A second network device, including:

The second communication unit receives the first message sent by the first network device; wherein the first message includes at least one of the following: the first capability group of the terminal device, the first configuration of the first network device, and the second network device The first configuration of the first network device; feedback a second message to the first network device; wherein the second message contains at least one of the following: the second capability group of the terminal device, the second configuration of the first network device, the second network The second configuration of the device.
The second network device according to claim 35, wherein the first capability group of the terminal device and the second capability group of the terminal device both include at least one capability;

And the capabilities included in the first capability group of the terminal device and the second capability group of the terminal device are the same, or at least partially different.
The second network device according to claim 36, wherein the first capability group of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The second network device according to claim 36, wherein the second set of capabilities of the terminal device includes at least one of the following:

A first set of capabilities of the terminal device; wherein the first set of capabilities includes the total capabilities of the terminal device;

A second set of capabilities of the terminal device; wherein the second set of capabilities is the capability of the first network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A third set of capabilities of the terminal device; wherein, the third set of capabilities is the capability of the second network device side terminal device when the terminal device is switched while maintaining the connection with the first network device and the second network device;

A fourth set of capabilities of the terminal device; the fourth set of capabilities is the capability of the terminal device on the first network device side before the terminal device is switched;

The fifth capability set of the terminal device; the fifth capability set is the remaining capability of the first capability set excluding the capabilities in the fourth capability set.
The second network device according to claim 35, wherein the first configuration of the first network device is the same as or different from the second configuration of the first network device;

And/or, the first configuration of the second network device and/or the second configuration of the second network device are the same or different.
The second network device according to any one of claims 35-39, wherein the second network device further comprises: a second processing unit that performs at least one of the following:

Reallocate the capabilities of the terminal device on the first network device side and/or the second network device side;

Generating a second configuration of the first network device based on the first configuration of the first network device;

Based on the first configuration of the second network device, a second configuration of the second network device is generated.
The second network device according to any one of claims 35-40, wherein:

The second communication unit receives the first message carried in the handover request message sent by the first network device;

The handover request confirmation message sent to the first network device carries the second message.
The second network device according to any one of claims 35-41, wherein the second communication unit receives the instruction information for switching to the target service sent by the first network device;

Send feedback information to the first network device.
The second network device according to claim 42, wherein the indication information is carried by a handover request message; and the feedback information is carried by a handover request confirmation message.
The second network device according to claim 42, wherein the second communication unit adds an indication and configuration for the target service to the feedback information when it is determined that the second network device supports switching of the target service.
A network device, including: a processor and a memory for storing a computer program that can run on the processor,

Wherein, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the steps of the method according to any one of claims 1-22.
A chip comprising: a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the method according to any one of claims 1-22.
A computer-readable storage medium used to store a computer program that enables a computer to execute the steps of the method according to any one of claims 1-22.
A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 1-22.
A computer program that causes a computer to execute the method according to any one of claims 1-22.