CN115134761A

CN115134761A - Switching method, device, network side equipment and terminal

Info

Publication number: CN115134761A
Application number: CN202110333962.9A
Authority: CN
Inventors: 钟婷婷; 谢振华
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2022-09-30
Also published as: WO2022206552A1

Abstract

The application discloses a switching method, a switching device, network side equipment and a terminal, which belong to the field of mobile communication, and the switching method of the embodiment of the application comprises the following steps: the method comprises the steps that a first network side device sends a first indication to a second network side device, wherein the first indication comprises at least one of the following items: a service identifier of the first service; a service group identifier to which the first service belongs; a session identifier of a first service; a flow identification of the first service; a flow description of a first service; a service identity dedicated to the first service; a service group identifier dedicated to the first service; a session identity dedicated to the first service; a flow identification dedicated to the first service; and when the target base station is found to be outside the service area of the first service, the switching is refused, so that the Local MBS service can be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

Description

Switching method, device, network side equipment and terminal

Technical Field

The application belongs to the technical field of mobile communication, and particularly relates to a switching method, a switching device, network side equipment and a terminal.

Background

When a Local Multicast/Broadcast Service (Local MBS) is provided for a terminal (which may also be referred to as User Equipment (UE)), there is a scenario that the Local MBS may still be provided for the terminal when the terminal is outside a Service area of the Local MBS Service. For example, a conventional base station located at the edge of the service area of the Local MBS service provides the Local MBS service to the UE in a single Protocol Data Unit session (indicative PDU session), and when handover occurs, the UE is directly handed over to the target base station based on the PDU session. If the target base station is outside the Local MBS service area, the Local MBS provided by the target base station is not in accordance with the Local MBS service. Thereby, the Local MBS service is beyond the service area.

Disclosure of Invention

The embodiment of the application provides a switching method, a switching device, network side equipment and a terminal, and can solve the problem that Local MBS service exceeds a service area of the Local MBS service.

In a first aspect, a handover method is provided, where the handover method is performed by a first network side device, and the method includes:

sending a first indication to a second network side device; wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

In a second aspect, there is provided a switching apparatus, the apparatus comprising:

a first execution module to determine a first indication;

the first transceiver module is used for sending a first instruction to the second network side equipment; wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

In a third aspect, a handover method performed by a second network side device is provided, where the method includes:

receiving a first instruction sent by first network side equipment; wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of a first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

In a fourth aspect, there is provided a switching apparatus, the apparatus comprising:

the second transceiver module is used for receiving a first instruction sent by the first network side equipment;

the second execution module is used for obtaining the indication content of the first indication;

wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of a first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

In a fifth aspect, a handover method is provided, which is performed by a terminal, and includes at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

In a sixth aspect, a switching device is provided, the device comprising:

a third execution module to determine a fourth indication;

a third transceiver module for performing at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

In a seventh aspect, a handover method performed by a core network function is provided, where the method includes at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

In an eighth aspect, there is provided a switching device, the device comprising:

a fourth execution module to determine a fourth indication;

a fourth transceiving module configured to perform at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

In a ninth aspect, a terminal is provided, comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, which program or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

A tenth aspect provides a network-side device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, implements the steps of the method according to the first aspect, or implements the steps of the method according to the third aspect, or implements the steps of the method according to the seventh aspect.

In an eleventh aspect, a terminal is provided, which includes a processor and a communication interface, wherein the processor is configured to determine a fourth indication, and the communication interface is configured to perform at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

In a twelfth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.

In a thirteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the third aspect, or to implement the method according to the fifth aspect, or to implement the method according to the seventh aspect.

In a fourteenth aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executable by at least one processor to perform the steps of the handover method according to the first aspect, or to perform the steps of the handover method according to the third aspect, or to perform the steps of the handover method according to the fifth aspect, or to perform the steps of the handover method according to the seventh aspect.

In the embodiment of the application, the first indication is sent to the second network side equipment through the first network side equipment, and the switching is refused when the target base station is found to be outside the service area of the first service, so that the Local MBS service can only be provided in the service area, and the resource utilization efficiency of the Local MBS service is improved.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system to which an embodiment of the present application is applicable;

fig. 2 is a schematic flow chart illustrating a handover method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a switching device according to an embodiment of the present application;

fig. 4 is a schematic flow chart illustrating a handover method according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a switching device according to an embodiment of the present application;

fig. 6 shows another schematic flow chart of a handover method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a switching device according to an embodiment of the present application;

fig. 8 is a schematic flow chart illustrating a handover method according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a switching device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 11 is a schematic structural diagram of a network-side device for implementing an embodiment of the present application;

fig. 12 is a schematic structural diagram of a terminal implementing an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally used herein in a generic sense to distinguish one element from another, and not necessarily from another element, such as a first element which may be one or more than one. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "web" in the embodiments of the present applicationThe networks are often used interchangeably and the described techniques may be used for both the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 is a schematic diagram illustrating a structure of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

The following describes the handover method provided in the embodiments of the present application in detail through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 2 shows a schematic flowchart of a handover method according to an embodiment of the present application, where the handover method is executed by a first network-side device, in other words, the handover method may be executed by software or hardware installed in the first network-side device. As shown in fig. 2, the method may include the following steps.

Step S201, sending a first instruction to a second network side device. The first indication may be a Handover indication sent by the first network-side device to the second network-side device, and the Handover indication may specifically be a Handover request (Handover request) message for N2 Handover, and may also be a Handover request (Handover request) message for XN Handover.

It should be appreciated that the first indication is an indication that a handover of the first service is triggered.

In one embodiment, the content in the first indication may comprise at least one of:

a service identifier of the first service; for example, in a case that the first service is an MBS service or a Local MBS service, the service Identifier may be a Temporary Mobile Group Identifier (TMGI), a Multicast address (source-specific IP Multicast address), a related Identifier of the Local MBS, or the like;

a service group identifier to which the first service belongs; for example, in the case that the first service is an MBS service, the service group identifier may be an identifier of a multicast group;

a session identifier of a first service; for example, Session identification (Session ID)

A flow identification of the first service; for example, a Quality of Service Flow Identifier (QFI);

a flow description of a first service; for example, quality of service Profile (QoS Profile);

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Taking a session identifier dedicated to a first service as an example, when the first service is an MBS service or a Local MBS service, the session identifier is a session ID dedicated to the MBS service or a session ID dedicated to the Local MBS service, and other services cannot use the dedicated session ID.

In one embodiment, after the step S201, the method may further include:

receiving a second instruction sent by the second network side equipment; the second indication is sent by the second network side device after the first condition is determined to be met.

Wherein the first condition may include at least one of:

the service corresponding to the first indication includes the first service, such as Local MBS service, etc.;

the second network side device is located outside the service area of the first service, for example, outside the service area of the Local MBS service;

a third network side device is located outside the service area of the first service, for example, when the second network side device is a core network Function, the N2 handover occurs, the first network side device is an original base station, the second network side device is an Access and Mobility Management Function (AMF), and the third network side device is a target base station.

The third network side device may be a base station or a core network function, for example, an AMF.

In one embodiment, the second indication is used to indicate that the handover of the first service is denied. For example, in the N2 Handover, the second indication may specifically be a protocol data unit Session resource Release table (PDU Session Resources to Release List IE) of a Handover Command (Handover Command) message sent by the AMF, where the PDU Session ID includes a protocol data unit Session identifier (PDU Session ID) of the first service, or the second indication is a Handover PREPARATION FAILURE (Handover FAILURE) message sent by the AMF; for another example, in XN HANDOVER, the second indication is a HANDOVER prepare FAILURE message sent by the target base station to the original base station, or a protocol data unit session identifier of the first service is included in a pduseresourcesandard-List of a HANDOVER Request reply message (HANDOVER Request Acknowledge).

In one embodiment, the step S201 further includes:

receiving a fourth indication; wherein the fourth indication comprises service area information.

Optionally, the fourth indication may be at least one of:

a fourth indication sent by the terminal to the first network side device;

is a fourth indication sent by the core network function to the first network side device.

In one embodiment, when the fourth indication is a fourth indication sent by the terminal, the receiving the fourth indication includes at least one of:

after sending a radio resource control reconfiguration (rrcrconfiguration) message to the terminal, receiving a fourth instruction sent by the terminal, that is, after receiving the rrcrconfiguration message sent by the first network side device, the terminal sends the fourth instruction to the first network side device;

and receiving a fourth instruction sent by the terminal before sending the first instruction to the second network side device, namely, sending the fourth instruction by the terminal before the first network side device sends the first instruction to the second network side device.

Optionally, after receiving the fourth indication, the method further includes at least one of:

the first network side equipment refuses to send the first indication;

under the condition that a third condition is met, the first network side equipment removes the information of the first service in the first indication;

and the first network side equipment sends the first indication to the second network side equipment.

Wherein the third condition includes that the second network-side device is not located in a service area of the first service.

In another embodiment, when the fourth indication is a fourth indication sent by the core network function, the fourth indication further includes at least one of the following:

an indication of the first service transmission;

an indication of the first service start, for example, a session start (session start) of the MBS service;

an indication of the first service recovery, such as session recovery of MBS service, activation of MBS service (session activation);

an indication that the first service is not sent, for example, a session stop (session stop) of the MBS service;

an indication that the first service is suspended, for example, a session of the MBS service is suspended, and a session deactivation of the MBS service is performed;

an indication of the first service deletion, for example, session deletion (session delete) of the MBS service.

Optionally, the first network side device is a base station or a core network function, for example, the first network side device may be an AMF.

Optionally, when the first network-side device is a base station, the first network-side device is a base station having a service type corresponding to the first service, or the first network-side device is a base station not having the service type corresponding to the first service. For example, in a case that the first service belongs to an MBS service, the first network-side device may be a first base station with MBS capability (MBS-capable) (capable of sending the MBS service in a Shared transmission (Shared transmission) manner through an N3 channel), or the first network-side device may be a first base station without the MBS-capable (incapable of sending the MBS service in a Shared transmission manner through an N3 channel).

Optionally, the second network side device is a base station or a core network function, for example, an AMF.

Optionally, when the second network-side device is a base station, the second network-side device is a base station having a service type corresponding to the first service, or the second network-side device is a base station not having the service type corresponding to the first service. For example, when the first service belongs to an MBS service, the second network-side device may be a second base station with an MBS-capable (capable of sending the MBS service in a Shared delivery manner through an N3 channel), or the second network-side device may be a second base station without an MBS-capable (incapable of sending the MBS service in a Shared delivery manner through an N3 channel).

Optionally, the first network side device is located in the service area of the first service, or the first network side device is located outside the service area of the first service.

Optionally, the second network side device is located in the service area of the first service, or the second network side device is located outside the service area of the first service.

In an embodiment, if the first service is an MBS service or a Local MBS service, the service area of the first service is a service area of the MBS service or a service area of the Local MBS service.

Optionally, when the first network-side device is located in the service area of the first service or at the edge of the service area of the first service, the first network-side device further includes at least one of the following items,

the first network side device only has the function of initiating the XN switching, namely the first network side device only can initiate the XN switching;

the first network side device only has the function of initiating the N2 handover, that is, the first network side device only can initiate the N2 handover;

the first network side device has a function of initiating XN handover and/or N2 handover, that is, the first network side device can initiate XN handover and/or N2 handover.

Therefore, according to the switching method provided by the application, the first indication is sent to the second network side equipment through the first network side equipment, and when the target base station is found to be located outside the service area of the first service, switching is refused, so that the Local MBS service can be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

It should be noted that, in the handover method provided in the embodiment of the present application, the execution main body may be a handover device, or a control module for executing the handover method in the handover device. In the embodiment of the present application, a switching device executing a switching method is taken as an example to describe the switching device provided in the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a switching device according to an embodiment of the present application, and as shown in fig. 3, the switching device includes: a first executing module 301 and a first transceiver module 302.

The first executing module 301 is configured to determine a first indication; the first transceiver module 302 is configured to send a first indication to a second network-side device; wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of a first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Optionally, after the first instruction is sent to the second network-side device, the first transceiver module 302 is further configured to receive a second instruction sent by the second network-side device; the second indication is sent by the second network side device after the first condition is determined to be met.

Optionally, the first condition includes at least one of:

the corresponding service in the first indication comprises the first service;

the second network side equipment is positioned outside the service area of the first service;

and the third network side equipment is positioned outside the service area of the first service.

Optionally, the second indication is used to indicate that the handover of the first service is rejected.

Optionally, the first transceiver module 302 is further configured to receive a fourth indication; wherein the fourth indication comprises service area information.

Optionally, the fourth indication includes at least one of:

a fourth indication sent by the terminal;

a fourth indication sent by the core network function.

Optionally, when the fourth indication is a fourth indication sent by the terminal, the first transceiver module 302 is configured to perform at least one of the following:

after sending a radio resource control reconfiguration message to a terminal, receiving a fourth instruction sent by the terminal;

and receiving a fourth instruction sent by the terminal before sending the first instruction to the second network side equipment.

Optionally, after receiving the fourth indication, the first transceiver module 302 is further configured to perform at least one of the following:

refusing to send the first indication;

removing information of the first service in the first indication if a third condition is met;

and sending the first indication to the second network side equipment.

Optionally, the third condition includes that the second network-side device is not located in the service area of the first service.

Optionally, when the fourth indication is a fourth indication sent by the core network function, the fourth indication further includes at least one of the following:

an indication of the first service transmission;

an indication that the first service is starting;

an indication that the first service is restored;

an indication that the first service is not to be sent;

an indication that the first service is suspended;

an indication of deletion of the first service.

Optionally, the switching device is a base station or a core network function.

Optionally, when the switching device is a base station, the switching device is a base station having a service type corresponding to the first service, or the switching device is a base station not having a service type corresponding to the first service.

Optionally, the second network side device is a base station or a core network function.

Optionally, when the second network-side device is a base station, the second network-side device is a base station having a service type corresponding to the first service, or the second network-side device is a base station not having the service type corresponding to the first service.

Optionally, the switching device is located in the service area of the first service, or the switching device is located outside the service area of the first service.

Optionally, when the switching device is located in the service area of the first service or at the edge of the service area of the first service, the switching device further includes at least one of the following items,

the switching device only has the function of initiating XN switching;

the switching device only has the function of initiating N2 switching;

the switching device is provided with a function of initiating XN switching and/or N2 switching.

Therefore, the switching device provided by the application refuses to switch when the target base station is found to be located outside the service area of the first service by sending the first indication to the second network side equipment, so that the Local MBS service is ensured to be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

The switching device in the embodiment of the present application may be a device, a device or an electronic apparatus having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the type of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (TV), a self-service machine (kiosk), or the like, and the embodiments of the present application are not limited in particular.

The switching device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Fig. 4 shows another schematic flow chart of the handover method according to the embodiment of the present application, where the method is executed by the second network-side device, in other words, the method may be executed by software or hardware installed in the second network-side device. As shown in fig. 4, the method may include the following steps.

Step S401, receiving a first instruction sent by a first network side device;

wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Step S401 may implement the same method embodiment as step S201 in fig. 2, to obtain the same technical effect, and repeated contents are not described herein again.

Optionally, after step S301, the method further includes:

and under the condition that the first condition is met, the second network side equipment sends a second instruction to the first network side equipment.

Optionally, the first condition includes at least one of:

the corresponding service in the first indication comprises the first service;

Optionally, after receiving the first indication sent by the first network-side device, the method further includes at least one of:

the second network side equipment sends a path switching REQUEST (PATH SWITCH REQUEST) message to the fourth network side equipment;

receiving a third indication of the fourth network side device; wherein the third indication is sent by the fourth network side device when it is determined that a second condition is satisfied; the third indication is used for indicating whether the first service is successful in the path switching request. The third indication may specifically be a path switch REQUEST reply (PATH WITCH REQUEST ACKNOWLEDGE) message, or the third indication may specifically be a path switch REQUEST FAILURE (PATH SWITCH REQUEST FAILURE) message.

Optionally, the second condition includes at least one of:

the service corresponding to the PATH SWITCH REQUEST message includes the first service, for example, includes Local MBS service or MBS service;

the second network side device is located outside the service area of the first service, for example, outside the service area of the Local MBS service.

Optionally, the receiving the first indication sent by the first network-side device further includes:

Optionally, the fourth indication includes at least one of:

a fourth indication sent by the terminal;

a fourth indication sent by the core network function.

Optionally, when the fourth indication is a fourth indication sent by the terminal, the receiving the fourth indication includes at least one of the following items,

a fourth indication sent by the terminal and received in the handover execution process of the terminal, for example, the terminal sends the fourth indication and a radio resource control reconfiguration complete (RRCReconfigurationComplete) message to the second network side;

and receiving a fourth instruction sent by the terminal after the terminal completes handover, for example, sending, by the terminal, the fourth instruction to the second network side device after sending the rrcreeconfigurationcomplete message.

Optionally, after receiving the fourth indication, the method further includes:

and under the condition that a fourth condition is met, the second network side equipment executes a first action.

Optionally, the fourth condition is that the second network side device is not located in the service area of the first service.

Optionally, the performing the first action includes:

and releasing the resources corresponding to the first service.

an indication of the first service transmission;

an indication that the first service is starting;

an indication that the first service is restored;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

Optionally, when the first network-side device is located in the service area of the first service or at the edge of the service area of the first service, at least one of the following is further included,

the first network side equipment only has the function of initiating XN switching;

the first network side device only has the function of initiating N2 handover;

the first network side device has a function of initiating XN switching and/or N2 switching.

Fig. 5 is a schematic structural diagram of a switching device according to an embodiment of the present application, and as shown in fig. 5, the switching device includes: a second executing module 501 and a second transceiver module 502.

The second transceiver module 502 is configured to receive a first indication sent by a first network-side device; the second execution module 501 is configured to obtain the indication content of the first indication;

wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of a first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Optionally, the second transceiver module 501 is configured to send a second indication to the first network-side device when the first condition is met.

Optionally, the first condition includes at least one of:

the corresponding service in the first indication comprises the first service;

the switching device is positioned outside the service area of the first service;

Optionally, after receiving the first indication sent by the first network-side device, the second transceiver module 502 is further configured to perform at least one of the following:

sending a path switching request message to fourth network side equipment;

receiving a third indication of the fourth network side device; wherein the third indication is sent by the fourth network side device when it is determined that a second condition is satisfied; the third indication is used for indicating whether the first service is successful in the path switching request.

Optionally, the second condition includes at least one of:

the service corresponding to the path switching request message comprises the first service;

the switching device is outside the service area of the first service.

Optionally, the second transceiver module 502 is further configured to receive a fourth indication; wherein the fourth indication comprises service area information.

Optionally, the fourth indication includes at least one of:

a fourth indication sent by the terminal;

a fourth indication sent by the core network function.

receiving a fourth instruction sent by the terminal in the process of executing the switching by the terminal;

and receiving a fourth instruction sent by the terminal after the terminal completes the switching.

Optionally, after receiving the fourth indication, the second transceiver module 502 is further configured to:

in case the fourth condition is fulfilled, the first action is performed.

Optionally, the fourth condition is that the switching device is not located in the service area of the first service.

Optionally, the performing the first action includes:

and releasing the resources corresponding to the first service.

an indication of the first service transmission;

an indication that the first service is starting;

an indication that the first service is restored;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

the first network side device only has the function of initiating N2 handover;

Therefore, the switching device provided by the application refuses to switch when the target base station is found to be located outside the service area of the first service by receiving the first indication sent by the first network side equipment, so that the Local MBS service can be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

The switching device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

The switching device provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not described here again.

Fig. 6 shows another flowchart of the handover method according to the embodiment of the present application, which is executed by the terminal, in other words, the method may be executed by software or hardware installed in the terminal. As shown in fig. 6, the method may include at least one of the following steps.

Step S601, the terminal executes at least one of the following:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

Step S601 may implement the method embodiments of step S201 in fig. 2 and step S401 in fig. 4, and obtain the same or similar technical effects, and repeated contents are not repeated here.

Optionally, after sending the fourth instruction to the first network side device, the first network side device performs at least one of the following:

the first network side equipment sends a first instruction to the second network side equipment;

when the third condition is met, the first network side equipment removes the information of the first service in the first indication;

the first network side device refuses to send the first indication to the second network side device.

Optionally, the first indication comprises at least one of:

a service identifier of a first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of a first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Optionally, the sending the fourth indication to the first network side device includes:

and after receiving the radio resource control reconfiguration message sent by the first network side equipment, sending a fourth instruction to the first network side equipment.

Optionally, after the fourth instruction is sent to the second network side device, the second network side device executes the first action when the fourth condition is satisfied.

Optionally, the fourth condition is that the second network side device is not located in a service area of the first service.

Optionally, the first behavior is that the second network side device releases a resource corresponding to the first service.

Optionally, the first network side device is a base station or a core network function.

Optionally, when the first network-side device is a base station, the first network-side device is a base station with a service type corresponding to the first service, or the first network-side device is a base station without a service type corresponding to the first service.

Optionally, when the second network side device is a base station, the second network side device is a base station having a service type corresponding to the first service, or the first network side device is a base station not having the service type corresponding to the first service.

Optionally, the first network side device is located in a service area of the first service, or the first network side device is located outside the service area of the first service.

Optionally, the second network side device is located in a service area of the first service, or the second network side device is located outside the service area of the first service.

Optionally, when the first network-side device is located in a service area of the first service or at an edge of the service area of the first service, the first network-side device further includes at least one of the following items,

the first network side device only has the function of initiating N2 handover;

Therefore, according to the switching method provided by the embodiment of the application, the terminal sends the fourth instruction to the first network side device, or sends the fourth instruction to the second network side device, and when the target base station is found to be located outside the service area of the first service, the switching is refused, so that the Local MBS service can only be provided in the service area, and the resource utilization efficiency of the Local MBS service is improved.

Fig. 7 is a schematic structural diagram of a switching device according to an embodiment of the present application, and as shown in fig. 7, the switching device includes: a third executing module 701 and a third transceiving module 702.

The third executing module 701 is configured to determine a fourth indication; the third transceiver module 702 is configured to perform at least one of the following:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

the first network side equipment sends a first indication to the second network side equipment;

Optionally, the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of a first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Optionally, the third transceiver module 702 is configured to send a fourth instruction to the first network side device after receiving the rrc reconfiguration message sent by the first network side device.

Optionally, after sending the fourth instruction to the second network side device, the second network side device executes the first action when the fourth condition is satisfied.

Optionally, the first action is to release, by the second network side device, a resource corresponding to the first service.

Optionally, when the second network-side device is a base station, the second network-side device is a base station with a service type corresponding to the first service, or the first network-side device is a base station without a service type corresponding to the first service.

the first network side device only has the function of initiating N2 handover;

Therefore, the switching device provided by the application refuses to switch when the target base station is found to be located outside the service area of the first service by sending the fourth indication to the first network side equipment or sending the fourth indication to the second network side equipment, so that the Local MBS service is ensured to be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

The switching device provided in the embodiment of the present application can implement each process implemented in the method embodiment of fig. 6, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

Fig. 8 is a schematic flowchart illustrating another handover method according to an embodiment of the present application, where the handover method is executed by a core network function. As shown in fig. 8, the method may include the following steps.

Step S801, the core network function performs at least one of the following:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

Step S801 may implement the method embodiments of step S201 in fig. 2 and step S401 in fig. 4, and obtain the same or similar technical effects, and repeated portions are not described herein again.

Optionally, the fourth indication comprises at least one of:

an indication of a first service transmission;

an indication that a first service is starting;

an indication of a restoration of the first service;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

the first network side equipment only has the function of initiating N2 switching;

Therefore, according to the switching method provided by the application, the fourth indication is sent to the first network side device through the core network function, or the fourth indication is sent to the second network side device, and when the target base station is found to be located outside the service area of the first service, the switching is refused, so that the Local MBS service is ensured to be provided only in the service area, and the resource utilization efficiency of the Local MBS service is improved.

Fig. 9 is a schematic structural diagram of a switching device according to an embodiment of the present application, and as shown in fig. 9, the switching device includes: a fourth executing module 901 and a fourth transceiving module 902.

The fourth executing module 901 is configured to determine a fourth indication; the fourth transceiving module 902 is configured to perform at least one of the following:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

Optionally, the fourth indication comprises at least one of:

an indication of a first service transmission;

an indication that a first service is starting;

an indication of a restoration of the first service;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

Therefore, the switching device provided by the application refuses to switch when the target base station is found to be located outside the service area of the first service by sending the fourth indication to the first network side device or sending the fourth indication to the second network side device, so that the Local MBS service can only be provided in the service area, and the resource utilization efficiency of the Local MBS service is improved.

The switching device in the embodiment of the present application may be a device, a device or an electronic apparatus having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.

Optionally, as shown in fig. 10, an embodiment of the present application further provides a communication device 1000, which includes a processor 1001, a memory 1002, and a program or an instruction stored in the memory 1002 and executable on the processor 1001, for example, when the communication device 1000 is a terminal, the program or the instruction is executed by the processor 1001 to implement each process of the foregoing switching method embodiment, and the same technical effect can be achieved. When the communication device 1000 is a network device, the program or the instruction is executed by the processor 1001 to implement the processes of the foregoing switching method embodiment, and the same technical effect can be achieved, and for avoiding repetition, details are not described here again.

The embodiment of the application further provides a network side device, which comprises a processor and a communication interface, wherein the processor is used for determining the first indication, and the communication interface is used for sending the first indication to the second network side device; or, the processor is configured to obtain an indication content of the first indication, and the communication interface is configured to receive the first indication sent by the first network-side device; or, the processor is configured to determine a fourth indication, and the communication interface is configured to perform at least one of: sending a fourth instruction to the first network side equipment; and sending a fourth instruction to the second network side equipment. The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 11, the network device 1100 includes: antenna 111, radio frequency device 112, baseband device 113. The antenna 111 is connected to a radio frequency device 112. In the uplink direction, the rf device 112 receives information through the antenna 111 and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes information to be transmitted and transmits the information to the rf device 112, and the rf device 112 processes the received information and transmits the processed information through the antenna 111.

The above band processing apparatus may be located in the baseband apparatus 113, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 113, where the baseband apparatus 113 includes the processor 114 and the memory 115.

The baseband device 113 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 11, wherein one chip, for example, the processor 114, is connected to the memory 115 to call the program in the memory 115 to perform the network device operation shown in the above method embodiment.

The baseband device 113 may further include a network interface 116, for exchanging information with the radio frequency device 112, for example, a Common Public Radio Interface (CPRI).

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 115 and capable of being executed on the processor 114, and the processor 114 calls the instructions or programs in the memory 115 to execute the methods executed by the modules shown in fig. 3, 5, and 9, and achieve the same technical effects, which are not described herein in detail to avoid repetition.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the processor is configured to determine the fourth indication, and the communication interface is configured to perform at least one of the following: sending a fourth instruction to the first network side equipment; and sending a fourth instruction to the second network side equipment. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 12 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

The terminal 1200 includes, but is not limited to: at least some of the radio unit 1201, the network module 1202, the audio output unit 1203, the input unit 1204, the sensor 1205, the display unit 1206, the user input unit 1207, the interface unit 1208, the memory 1209, and the processor 1210.

Those skilled in the art will appreciate that the terminal 1200 may further comprise a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 1210 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 12 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.

It should be understood that, in the embodiment of the present application, the input Unit 1204 may include a Graphics Processing Unit (GPU) 12041 and a microphone 12042, and the Graphics Processing Unit 12041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1206 may include a display panel 12061, and the display panel 12061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1207 includes a touch panel 12071 and other input devices 12072. A touch panel 12071, also referred to as a touch screen. The touch panel 12071 may include two parts of a touch detection device and a touch controller. Other input devices 12072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 1201 receives downlink data from a network side device and then processes the downlink data to the processor 1210; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 1201 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1209 may be used to store software programs or instructions and various data. The memory 1209 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 1209 may include a high-speed random access Memory, and may further include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 1210 may include one or more processing units; optionally, the processor 1210 may integrate an application processor, which mainly handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 1210.

Wherein, the radio frequency unit 1201 is configured to perform at least one of the following:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

Optionally, the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

Optionally, the radio frequency unit 1201 is configured to send a fourth instruction to the first network side device after receiving the radio resource control reconfiguration message sent by the first network side device.

Optionally, when the first network side device is located in a service area of the first service or at an edge of the service area of the first service, the first network side device further includes at least one of the following items,

Therefore, the terminal provided by the application ensures that the Local MBS service can only be provided in the service area, and improves the resource utilization efficiency of the Local MBS service.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing switching method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the foregoing switching method embodiment, and can achieve the same technical effect, and for avoiding repetition, details are not repeated here.

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

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A handover method, executed by a first network side device, includes:

sending a first instruction to second network side equipment; wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of a first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

2. The method of claim 1, wherein after sending the first indication to the second network-side device, the method further comprises:

3. The method of claim 2, wherein the first condition comprises at least one of:

the corresponding service in the first indication comprises the first service;

4. The method of claim 2, wherein the second indication indicates a rejection of the handover for the first service.

5. The method of claim 1, further comprising:

6. The method of claim 5, wherein the fourth indication comprises at least one of:

a fourth indication sent by the terminal;

a fourth indication sent by the core network function.

7. The method of claim 6, wherein when the fourth indication is a fourth indication sent by the terminal, the receiving the fourth indication comprises at least one of:

8. The method of claim 5, wherein after receiving the fourth indication, the method further comprises at least one of:

refusing to send the first indication;

removing the information of the first service in the first indication if a third condition is met;

and sending the first indication to the second network side equipment.

9. The method of claim 8, wherein the third condition comprises the second network-side device not being within a service area of the first service.

10. The method of claim 6, wherein when the fourth indication is a fourth indication sent by a core network function, the fourth indication further comprises at least one of:

an indication of the first service transmission;

an indication that the first service is starting;

an indication of the restoration of the first service;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

11. The method of claim 1, wherein the first network-side device is a base station or a core network function.

12. The method of claim 11, wherein when the first network-side device is a base station, the first network-side device is a base station with a service type corresponding to the first service, or the first network-side device is a base station without a service type corresponding to the first service.

13. The method of claim 1, wherein the second network side device is a base station or a core network function.

14. The method according to claim 13, wherein when the second network-side device is a base station, the second network-side device is a base station having a service type corresponding to the first service, or the second network-side device is a base station not having the service type corresponding to the first service.

15. The method according to claim 1, wherein the first network-side device is located within a service area of the first service, or wherein the first network-side device is located outside the service area of the first service.

16. The method according to claim 1, wherein the second network-side device is located within a service area of the first service, or wherein the second network-side device is located outside the service area of the first service.

17. The method of claim 1, wherein when the first network-side device is within a service area of the first service or at an edge of the service area of the first service, the first network-side device further comprises at least one of,

the first network side device only has the function of initiating N2 handover;

18. A switching device, comprising:

a first execution module to determine a first indication;

the first transceiver module is used for sending a first indication to the second network side equipment; wherein the first indication comprises at least one of:

a service identifier of a first service;

a service group identifier to which the first service belongs;

a session identifier of a first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

19. A handover method executed by a second network side device, the handover method comprising:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of a first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

20. The method of claim 19, wherein after receiving the first indication sent by the first network-side device, the method further comprises:

and sending a second instruction to the first network side equipment when the first condition is met.

21. The method of claim 20, wherein the first condition comprises at least one of:

the corresponding service in the first indication comprises the first service;

22. The method of claim 20, wherein the second indication indicates a rejection of the handover for the first service.

23. The method of claim 19, wherein after receiving the first indication sent by the first network-side device, the method further comprises at least one of:

sending a path switching request message to fourth network side equipment;

24. The method of claim 23, wherein the second condition comprises at least one of:

the second network side device is outside the service area of the first service.

25. The method of claim 19, further comprising:

26. The method of claim 25, wherein the fourth indication comprises at least one of:

a fourth indication sent by the terminal;

a fourth indication sent by the core network function.

27. The method of claim 26, wherein when the fourth indication is a fourth indication sent by a terminal, the receiving the fourth indication comprises at least one of,

28. The method of claim 25, wherein after receiving the fourth indication, the method further comprises:

in case the fourth condition is fulfilled, the first action is performed.

29. The method of claim 28, wherein the fourth condition is that the second network-side device is not located in a service area of the first service.

30. The method of claim 28, wherein the performing the first action comprises:

and releasing the resources corresponding to the first service.

31. The method of claim 26, wherein when the fourth indication is a fourth indication sent by a core network function, the fourth indication further comprises at least one of:

an indication of the first service transmission;

an indication that the first service is starting;

an indication that the first service is restored;

an indication that the first service is not to be sent;

an indication that the first service is suspended;

an indication of deletion of the first service.

32. The method of claim 19, further comprising at least one of the following when the first network-side device is located in a service area of the first service or at an edge of the service area of the first service,

the first network side device only has the function of initiating N2 handover;

33. A switching device, comprising:

wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of the first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

34. A handover method performed by a terminal, the handover method comprising at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

35. The method according to claim 34, wherein after sending the fourth indication to the first network-side device, the first network-side device performs at least one of:

36. The method of claim 35, wherein the first indication comprises at least one of:

a service identifier of the first service;

a service group identifier to which the first service belongs;

a session identifier of a first service;

a flow identification of the first service;

a flow description of a first service;

a service identity dedicated to the first service;

a service group identifier dedicated to the first service;

a session identity dedicated to the first service;

a flow identification dedicated to the first service;

a flow description dedicated to the first service.

37. The method of claim 35, wherein the third condition comprises the second network-side device not being within a service area of the first service.

38. The method of claim 34, wherein sending a fourth indication to the first network-side device comprises:

39. The method according to claim 34, wherein after sending the fourth indication to the second network-side device, the second network-side device performs the first action if a fourth condition is met.

40. The method of claim 39, wherein the fourth condition is that the second network-side device is not located in a service area of the first service.

41. The method of claim 39, wherein the first action is that the second network-side device releases a resource corresponding to a first service.

42. The method of claim 34, wherein the first network-side device is a base station or a core network function.

43. The method of claim 42, wherein if the first network-side device is a base station, the first network-side device is a base station with a service type corresponding to the first service, or the first network-side device is a base station without a service type corresponding to the first service.

44. The method of claim 34, wherein the second network device is a base station or a core network function.

45. The method of claim 44, wherein when the second network-side device is a base station, the second network-side device is a base station with a service type corresponding to the first service, or the first network-side device is a base station without a service type corresponding to the first service.

46. The method of claim 34, wherein the first network-side device is located within a service area of the first service, or wherein the first network-side device is located outside the service area of the first service.

47. The method of claim 34, wherein the second network-side device is located within a service area of the first service, or wherein the second network-side device is located outside the service area of the first service.

48. The method of claim 34, wherein when the first network-side device is located in a service area of a first service or at an edge of the service area of the first service, the first network-side device further comprises at least one of,

the first network side device only has the function of initiating N2 handover;

49. A switching device, comprising:

a third execution module to determine a fourth indication;

a third transceiver module for performing at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

50. A handover method performed by a core network function, comprising at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

51. The method of claim 50, wherein the fourth indication comprises at least one of:

an indication of a first service transmission;

an indication that a first service is starting;

an indication of a restoration of the first service;

an indication that the first service is not to be sent;

an indication that the first service is pending;

an indication of deletion of the first service.

52. The method of claim 50, wherein when the first network-side device is in a service area of a first service or at an edge of the service area of the first service, the first network-side device further comprises at least one of,

the first network side device only has the function of initiating N2 handover;

53. A switching device, comprising:

a fourth execution module to determine a fourth indication;

a fourth transceiving module configured to perform at least one of:

sending a fourth instruction to the first network side equipment;

sending a fourth instruction to the second network side equipment;

wherein the fourth indication comprises service area information.

54. A network-side device, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the handover method according to any one of claims 1 to 17, or implement the steps of the handover method according to any one of claims 19 to 32, or implement the steps of the handover method according to any one of claims 50 to 52.

55. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the handover method of any of claims 34 to 48.

56. A readable storage medium, characterized in that a program or instructions are stored thereon, which program or instructions, when executed by a processor, implement the handover method according to any one of claims 1-17, or the steps of the handover method according to any one of claims 19 to 32, or the steps of the handover method according to any one of claims 34 to 48, or the steps of the handover method according to any one of claims 50 to 52.