A specific service switching method, device and computer-readable storage medium

Abstract

An embodiment of the present invention provides a specific service switching method, device and computer-readable storage medium, the method comprising: when a source cell switches a terminal's specific service to a first target cell, the first target cell switches the terminal's specific service to a second target cell; wherein the second target cell is a cell of the same system or a different system that supports the carrying capability of the specific service.

Description

Technical Field

[0001] The present invention relates to the field of mobile communication technology, and in particular to a specific service switching method, device and computer-readable storage medium. Background Art

[0002] At present, when inter-cell handover occurs, the target cell will check the bearers of the connected users who request to switch in one by one based on its own bearer capacity for different service bearers, and reply in the handover request response message with the service bearers that can be accepted by the switching user. If the target cell does not have the voice service bearer capacity of the switching user, it will reject the handover request of the voice service bearer and accept the handover request of other data service bearers, which will eventually cause the voice service of the user to be deactivated after switching to the target cell, that is, call drops will occur during the handover process. Summary of the invention

[0003] In view of this, embodiments of the present invention are intended to provide a specific service switching method, device, and computer-readable storage medium.

[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] An embodiment of the present invention provides a specific service switching method, which is applied to a first target cell and includes:

[0006] When the source cell switches the specific service of the terminal to the first target cell,

[0007] The first target cell switches the specific service of the terminal to the second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0008] The specific business includes one or more of the following:

[0009] The new air interface carries voice VoNR voice / video, evolved packet system voice fallback EPS Fallback voice / video, long-term evolution voice VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

[0010] Optionally, when the first target cell switches the specific service of the terminal to the second target cell, the method further includes:

[0011] The first target cell exchanges with the second target cell the specific service bearing capability supported by the second target cell, wherein:

[0012] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0013] The first target cell switching the specific service of the terminal to the second target cell includes:

[0014] receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal;

[0015] Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal;

[0016] receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal;

[0017] A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0018] Optionally, when sending the second handover request message to the second target cell, the method further includes:

[0019] Based on the switching message formats of the first target cell and the second target cell, the second switching request message is adapted or reconstructed towards the second target cell.

[0020] Optionally, when the first target cell switches the specific service of the terminal to a second target cell, the method further includes:

[0021] The first target cell notifies the source cell to release the terminal related context; or,

[0022] The first target cell forwards a notification from the second target cell regarding releasing the terminal-related context of the source cell.

[0023] Optionally, the first target cell switches the specific service of the terminal to a second target cell, and the method further includes:

[0024] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0025] The embodiment of the present invention further provides a specific service switching method, which is applied to a source cell and includes:

[0026] When the source cell switches the specific service of the terminal to the first target cell,

[0027] Sending a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0028] A third switching confirmation message sent by the first target cell is received, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0029] Optionally, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0030] The source cell sends a fourth handover request message to the first target cell, wherein the fourth handover request message includes the specific service bearer of the terminal;

[0031] The source cell receives a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell;

[0032] The source cell sends a handover command message to the terminal, to instruct the terminal to handover the specific service bearer to the second target cell.

[0033] Optionally, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0034] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0035] Optionally, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0036] The source cell receives a notification from the first target cell about releasing the terminal-related context of the source cell; or,

[0037] The source cell receives a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

[0038] The embodiment of the present invention further provides a specific service switching method, which is applied to a second target cell and includes:

[0039] When the source cell switches the specific service of the terminal to the first target cell, the source cell accepts the specific service of the terminal switched from the first target cell; wherein the second target cell is a cell of the same system or different system that supports the bearing capability of the specific service.

[0040] Optionally, when accepting the specific service of the terminal switched from the first target cell, the method further includes:

[0041] The second target cell exchanges the specific service bearing capability supported by the second target cell with the first target cell; wherein,

[0042] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0043] The accepting of the specific service of the terminal switched from the first target cell includes:

[0044] receiving a fifth handover request message sent by the first target cell;

[0045] A fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

[0046] Optionally, when sending a fifth handover confirmation message to the first target cell, the method further includes:

[0047] Based on the switching message formats of the first target cell and the second target cell, the fifth switching confirmation message is adapted or reconstructed towards the first target cell.

[0048] Optionally, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0049] receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal;

[0050] A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

[0051] Optionally, when accepting the specific service of the terminal switched from the first target cell, the method further includes:

[0052] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0053] Optionally, after the terminal accesses the second target cell, the method further includes:

[0054] The second target cell directly notifies the source cell to release the terminal related context; or,

[0055] The second target cell notifies the source cell via the first target cell to release the terminal-related context.

[0056] The embodiment of the present invention further provides a specific service switching method, which is applied to a terminal and includes:

[0057] receiving a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell;

[0058] Among them, the first target cell does not support the specific service carrying capability requested by the terminal to switch; the switching command message is: sent by the second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

[0059] Optionally, after receiving the handover command message forwarded by the first target cell via the source cell, the method further includes:

[0060] The terminal initiates an access process in the second target cell and switches the specific service bearer to the second target cell.

[0061] The embodiment of the present invention further provides a specific service switching device, which is applied to a first target cell and includes: a first switching module;

[0062] When the source cell switches the specific service of the terminal to the first target cell,

[0063] The first switching module is used to switch the specific service of the terminal to a second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0064] The embodiment of the present invention further provides a specific service switching device, which is applied to a source cell and includes: a first sending module and a first receiving module;

[0065] When the source cell switches the specific service of the terminal to the first target cell,

[0066] The first sending module is configured to send a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0067] The first receiving module is used to receive a third switching confirmation message sent by the first target cell, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0068] The embodiment of the present invention further provides a specific service switching device, which is applied to a second target cell and includes: a second switching module;

[0069] When the source cell switches the specific service of the terminal to the first target cell,

[0070] The second switching module is used to accept the specific service of the terminal switched from the first target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0071] The embodiment of the present invention further provides a specific service switching device, which is applied to a terminal and includes:

[0072] A second receiving module is used to receive a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell;

[0073] Among them, the first target cell does not support the specific service carrying capability requested by the terminal to switch; the switching command message is: sent by the second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

[0074] The embodiment of the present invention further provides a specific service switching device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0075] Wherein, the processor is used to execute the steps of the above method when running the computer program.

[0076] An embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are implemented.

[0077] The specific service switching method, device and computer-readable storage medium provided by the embodiments of the present invention are as follows: when the source cell switches the specific service of the terminal to the first target cell, the first target cell switches the specific service of the terminal to the second target cell; wherein the second target cell is a cell of the same system or a different system that supports the carrying capacity of the specific service. The embodiments of the present invention can avoid the problem that when the switching user carries an activated voice service, the voice service bearer switching request is rejected during the switching process because the target side cell does not support the voice service carrying capacity, thereby avoiding the dropped call phenomenon caused by the deactivation of the voice service during the switching process, and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 The specific service switching method according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0079] Figure 2 The specific service switching method according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0080] Figure 3 The specific service switching method according to the embodiment of the present invention is shown in FIG. Figure 3 ;

[0081] Figure 4 The specific service switching method according to the embodiment of the present invention is shown in FIG. Figure 4 ;

[0082] Figure 5 The structure of the specific service switching device according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0083] Figure 6 The structure of the specific service switching device according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0084] Figure 7 The structure of the specific service switching device according to the embodiment of the present invention is shown in FIG. Figure 3 ;

[0085] Figure 8 The structure of the specific service switching device according to the embodiment of the present invention is shown in FIG. Figure 4 ;

[0086] Fig. 9 A schematic diagram of a specific service switching scenario described in the related art;

[0087] Fig.10 This is a schematic diagram of a specific service switching process described in the first embodiment of the present invention;

[0088] Fig.11This is a schematic diagram of the specific service switching process described in the second scenario embodiment of the present invention. DETAILED DESCRIPTION

[0089] The present invention is described below in conjunction with the accompanying drawings and embodiments.

[0090] The embodiment of the present invention provides a specific service switching method, such as Figure 1 As shown, the method is applied to a first target cell, comprising:

[0091] Step 101: The source cell switches a specific service of the terminal to a first target cell;

[0092] Step 102: The first target cell switches the specific service of the terminal to the second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0093] The first target cell does not support the specific service carrying capability.

[0094] In the embodiment of the present invention, the specific service includes one or more of the following:

[0095] The new air interface carries voice VoNR voice / video, evolved packet system voice fallback (EPS Fallback) voice / video, long-term evolution voice VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

[0096] In one embodiment of the present invention, when the first target cell switches the specific service of the terminal to the second target cell, the method further includes:

[0097] The first target cell exchanges with the second target cell the specific service bearing capability supported by the second target cell, wherein:

[0098] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0099] In the embodiment of the present invention, the first target cell switches the specific service of the terminal to the second target cell, including:

[0100] receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal;

[0101] Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal;

[0102] receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal;

[0103] A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0104] In the embodiment of the present invention, when sending the second handover request message to the second target cell, the method further includes:

[0105] Based on the switching message formats of the first target cell and the second target cell, the second switching request message is adapted or reconstructed towards the second target cell.

[0106] In one embodiment of the present invention, when the first target cell switches the specific service of the terminal to the second target cell, the method further includes:

[0107] The first target cell notifies the source cell to release the terminal related context; or,

[0108] The first target cell forwards a notification from the second target cell regarding releasing the terminal-related context of the source cell.

[0109] In one embodiment of the present invention, the first target cell switches the specific service of the terminal to a second target cell, and the method further includes:

[0110] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0111] The embodiment of the present invention also provides a specific service switching method, such as Figure 2 As shown, the method is applied to a source cell, comprising:

[0112] Step 201: When the source cell switches a specific service of the terminal to the first target cell,

[0113] Sending a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0114] Step 202: Receive a third switching confirmation message sent by the first target cell, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0115] In the embodiment of the present invention, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0116] The source cell sends a fourth handover request message to the first target cell, wherein the fourth handover request message includes the specific service bearer of the terminal;

[0117] The source cell receives a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell;

[0118] The source cell sends a handover command message to the terminal, to instruct the terminal to handover the specific service bearer to the second target cell.

[0119] In one embodiment of the present invention, when the source cell switches a specific service of the terminal to the first target cell, the method further includes:

[0120] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0121] In one embodiment of the present invention, when the source cell switches a specific service of the terminal to the first target cell, the method further includes:

[0122] The source cell receives a notification from the first target cell about releasing the terminal-related context of the source cell; or,

[0123] The source cell receives a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

[0124] The embodiment of the present invention also provides a specific service switching method, such as Figure 3 As shown, the method is applied to the second target cell, comprising:

[0125] Step 301: When the source cell switches a specific service of the terminal to the first target cell,

[0126] Step 302: accepting a specific service of the terminal handed over from the first target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0127] In one embodiment of the present invention, when accepting the specific service of the terminal switched from the first target cell, the method further includes:

[0128] The second target cell exchanges the specific service bearing capability supported by the second target cell with the first target cell; wherein,

[0129] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0130] In the embodiment of the present invention, the accepting of the specific service of the terminal switched from the first target cell includes:

[0131] receiving a fifth handover request message sent by the first target cell;

[0132] The permission switching request is accepted based on the specific service carrying capability supported by the second target cell itself, and a fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

[0133] In the embodiment of the present invention, when the fifth handover confirmation message is sent to the first target cell, the method further includes:

[0134] Based on the switching message formats of the first target cell and the second target cell, the fifth switching confirmation message is adapted or reconstructed towards the first target cell.

[0135] In the embodiment of the present invention, when the source cell switches the specific service of the terminal to the first target cell, the method further includes:

[0136] receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal;

[0137] A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

[0138] In the embodiment of the present invention, when accepting the specific service of the terminal switched from the first target cell, the method further includes:

[0139] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0140] In the embodiment of the present invention, after the terminal accesses the second target cell, the method further includes:

[0141] The second target cell directly notifies the source cell to release the terminal related context; or,

[0142] The second target cell notifies the source cell via the first target cell to release the terminal-related context.

[0143] The embodiment of the present invention also provides a specific service switching method, such as Figure 4 As shown, the method is applied to a terminal, comprising:

[0144] Step 401: receiving a handover command message forwarded by a first target cell via a source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to a second target cell;

[0145] Among them, the first target cell does not support the specific service carrying capability requested by the terminal to switch; the switching command message is: sent by the second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

[0146] like Figure 4 As shown, after receiving the handover command message forwarded by the first target cell via the source cell, the method further includes:

[0147] Step 402: The terminal initiates an access process in the second target cell, and switches the specific service bearer to the second target cell.

[0148] In order to implement the above method embodiment, the embodiment of the present invention also provides a specific service switching device, such as Figure 5 As shown, the device is applied to a first target cell and includes: a first switching module 501;

[0149] When the source cell switches the specific service of the terminal to the first target cell,

[0150] The first switching module 501 is used to switch the specific service of the terminal to the second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0151] The first target cell does not support the specific service carrying capability.

[0152] In the embodiment of the present invention, the specific service includes one or more of the following:

[0153] The new air interface carries voice VoNR voice / video, EPS Fallback voice / video, long-term evolution voice carries VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

[0154] In one embodiment of the present invention, the device further includes: an interaction module 502; when the first switching module 501 switches the specific service of the terminal to the second target cell,

[0155] The interaction module 502 is used for the first target cell to interact with the second target cell about the specific service bearing capability supported by the second target cell, wherein:

[0156] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0157] In the embodiment of the present invention, the first switching module 501 switches the specific service of the terminal to the second target cell, including:

[0158] receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal;

[0159] Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal;

[0160] receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal;

[0161] A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0162] In an embodiment of the present invention, when the first switching module 501 sends a second switching request message to the second target cell, it is also used to adapt or reconstruct the second switching request message towards the second target cell based on the switching message format of the first target cell and the second target cell.

[0163] In one embodiment of the present invention, when the first switching module 501 switches the specific service of the terminal to the second target cell, it is also used to

[0164] Notify the source cell to release the terminal related context; or,

[0165] Forwarding a notification from the second target cell about releasing the terminal-related context of the source cell.

[0166] In one embodiment of the present invention, when the first switching module 501 switches the specific service of the terminal to the second target cell,

[0167] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0168] The embodiment of the present invention also provides a specific service switching device, such as Figure 6 As shown, the device is applied to a source cell and includes: a first sending module 601 and a first receiving module 602;

[0169] When the source cell switches the specific service of the terminal to the first target cell,

[0170] The first sending module 601 is configured to send a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0171] The first receiving module 602 is used to receive a third switching confirmation message sent by the first target cell, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0172] In the embodiment of the present invention, when the source cell switches the specific service of the terminal to the first target cell,

[0173] The first sending module 601 is further configured to send a fourth handover request message to the first target cell, wherein the fourth handover request message includes the specific service bearer of the terminal;

[0174] The first receiving module 602 is further configured to receive a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell;

[0175] The first sending module 601 is further configured to send a switching command message to the terminal, to instruct the terminal to switch the specific service bearer to the second target cell.

[0176] In one embodiment of the present invention, when the source cell switches a specific service of the terminal to the first target cell,

[0177] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0178] In one embodiment of the present invention, when the source cell switches the specific service of the terminal to the first target cell, the first receiving module 602 is further configured to:

[0179] receiving a notification from the first target cell about releasing the terminal-related context of the source cell; or,

[0180] Receive a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

[0181] The embodiment of the present invention also provides a specific service switching device, such as Figure 7 As shown, the device is applied to a second target cell, and includes: a second switching module 701;

[0182] When the source cell switches the specific service of the terminal to the first target cell,

[0183] The second switching module 701 is used to accept the specific service of the terminal switched from the first target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0184] In one embodiment of the present invention, when the second switching module 701 accepts the specific service of the terminal switched from the first target cell, it is also used to interact with the first target cell about the specific service bearing capability supported by the second target cell; wherein,

[0185] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0186] In the embodiment of the present invention, the second switching module 701 accepts the specific service of the terminal switched from the first target cell, including:

[0187] receiving a fifth handover request message sent by the first target cell;

[0188] The permission switching request is accepted based on the specific service carrying capability supported by the second target cell itself, and a fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

[0189] In the embodiment of the present invention, Figure 7As shown, the device further includes: a configuration module 702, when the second switching module 701 sends a fifth switching confirmation message to the first target cell,

[0190] The configuration module 702 is configured to perform message adaptation or reconstruction of the fifth handover confirmation message oriented to the first target cell based on the handover message formats of the first target cell and the second target cell.

[0191] In the embodiment of the present invention, when the source cell switches the specific service of the terminal to the first target cell, the second switching module 701 is further used to

[0192] receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal;

[0193] A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

[0194] In the embodiment of the present invention, when the second switching module 701 accepts the specific service of the terminal switched from the first target cell,

[0195] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0196] In the embodiment of the present invention, after the terminal accesses the second target cell, the second switching module 701 is further used to

[0197] directly notifying the source cell to release the terminal related context; or,

[0198] The source cell is notified via the first target cell to release the terminal-related context.

[0199] The embodiment of the present invention also provides a specific service switching device, such as Figure 8 As shown, the device is applied to a terminal, comprising:

[0200] The second receiving module 801 is used to receive a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell;

[0201] Among them, the first target cell does not support the specific service carrying capability requested by the terminal to switch; the switching command message is: sent by the second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

[0202] like Figure 8 As shown, the device further includes a third switching module 802. After the second receiving module 801 receives the switching command message forwarded by the first target cell via the source cell,

[0203] The third switching module 802 is configured to initiate an access process in the second target cell and switch the specific service bearer to the second target cell.

[0204] The embodiment of the present invention further provides a specific service switching device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0205] Wherein, when the processor is used to run the computer program, it executes:

[0206] When the source cell switches the specific service of the terminal to the first target cell,

[0207] The specific service of the terminal is switched to a second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0208] The specific business includes one or more of the following:

[0209] The new air interface carries voice VoNR voice / video, EPS Fallback voice / video, long-term evolution voice carries VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

[0210] When the specific service of the terminal is switched to the second target cell, the computer program is executed by the processor and further executes:

[0211] The first target cell exchanges with the second target cell the specific service bearing capability supported by the second target cell, wherein:

[0212] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0213] When the specific service of the terminal is switched to the second target cell, the computer program is executed by the processor and further executes:

[0214] receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal;

[0215] Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal;

[0216] receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal;

[0217] A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0218] When the second handover request message is sent to the second target cell, the computer program is executed by the processor and further executes:

[0219] Based on the switching message formats of the first target cell and the second target cell, the second switching request message is adapted or reconstructed towards the second target cell.

[0220] When the first target cell switches the specific service of the terminal to the second target cell, the computer program is executed by the processor and further executes:

[0221] Notify the source cell to release the terminal related context; or,

[0222] Forwarding a notification from the second target cell about releasing the terminal-related context of the source cell.

[0223] When the first target cell switches the specific service of the terminal to the second target cell,

[0224] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0225] The embodiment of the present invention further provides a specific service switching device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0226] Wherein, when the processor is used to run the computer program, it executes:

[0227] When the source cell switches the specific service of the terminal to the first target cell,

[0228] Sending a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0229] A third switching confirmation message is received from the first target cell, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0230] When the source cell switches the specific service of the terminal to the first target cell, the computer program is executed by the processor and further executes:

[0231] Sending a fourth handover request message to the first target cell, wherein the fourth handover request message includes the specific service bearer of the terminal;

[0232] receiving a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell;

[0233] A switching command message is sent to the terminal to instruct the terminal to switch the specific service bearer to the second target cell.

[0234] When the source cell switches the specific service of the terminal to the first target cell,

[0235] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0236] When the source cell switches the specific service of the terminal to the first target cell, the computer program is executed by the processor and further executes:

[0237] receiving a notification from the first target cell about releasing the terminal-related context of the source cell; or,

[0238] Receive a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

[0239] The embodiment of the present invention further provides a specific service switching device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0240] Wherein, when the processor is used to run the computer program, it executes:

[0241] When the source cell switches the specific service of the terminal to the first target cell,

[0242] Accepting the specific service of the terminal switched from the first target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0243] When accepting the specific service of the terminal switched from the first target cell, when the computer program is executed by the processor, the following steps are further performed:

[0244] The second target cell exchanges the specific service bearing capability supported by the second target cell with the first target cell; wherein,

[0245] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0246] The accepting of the specific service of the terminal switched from the first target cell, when the computer program is executed by the processor, further performs:

[0247] receiving a fifth handover request message sent by the first target cell;

[0248] The permission switching request is accepted based on the specific service carrying capability supported by the second target cell itself, and a fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

[0249] When the fifth handover confirmation message is sent to the first target cell, the computer program is executed by the processor and further executes:

[0250] Based on the switching message formats of the first target cell and the second target cell, the fifth switching confirmation message is adapted or reconstructed towards the first target cell.

[0251] When the source cell switches the specific service of the terminal to the first target cell, the computer program is executed by the processor and further executes:

[0252] receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal;

[0253] A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

[0254] When accepting the specific service of the terminal switched from the first target cell,

[0255] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0256] After the terminal accesses the second target cell, the computer program is executed by the processor and further executes:

[0257] The second target cell directly notifies the source cell to release the terminal related context; or,

[0258] The second target cell notifies the source cell via the first target cell to release the terminal-related context.

[0259] The embodiment of the present invention further provides a specific service switching device, the device comprising: a processor and a memory for storing a computer program that can be run on the processor,

[0260] Wherein, when the processor is used to run the computer program, it executes:

[0261] receiving a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell;

[0262] Among them, the first target cell does not support the specific service carrying capability requested by the terminal to switch; the switching command message is: sent by the second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

[0263] After receiving the handover command message forwarded by the first target cell via the source cell, the computer program is executed by the processor and further executes:

[0264] The terminal initiates an access process in the second target cell and switches the specific service bearer to the second target cell.

[0265] It should be noted that: when the device provided in the above embodiment performs a specific service switching, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the device provided in the above embodiment and the corresponding method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0266] In an exemplary embodiment, an embodiment of the present invention further provides a computer-readable storage medium, which may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM; or may be various devices including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0267] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0268] When the source cell switches the specific service of the terminal to the first target cell,

[0269] The specific service of the terminal is switched to a second target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0270] The specific business includes one or more of the following:

[0271] The new air interface carries voice VoNR voice / video, EPS Fallback voice / video, long-term evolution voice carries VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

[0272] When the specific service of the terminal is switched to the second target cell, the computer program is executed by the processor and further executes:

[0273] The first target cell exchanges with the second target cell the specific service bearing capability supported by the second target cell, wherein:

[0274] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0275] When the specific service of the terminal is switched to the second target cell, the computer program is executed by the processor and further executes:

[0276] receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal;

[0277] Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal;

[0278] receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal;

[0279] A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0280] When the second handover request message is sent to the second target cell, the computer program is executed by the processor and further executes:

[0281] Based on the switching message formats of the first target cell and the second target cell, the second switching request message is adapted or reconstructed towards the second target cell.

[0282] When the first target cell switches the specific service of the terminal to the second target cell, the computer program, when executed by the processor, executes:

[0283] Notify the source cell to release the terminal related context; or,

[0284] Forwarding a notification from the second target cell about releasing the terminal-related context of the source cell.

[0285] When the first target cell switches the specific service of the terminal to the second target cell,

[0286] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0287] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0288] When the source cell switches the specific service of the terminal to the first target cell,

[0289] Sending a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal;

[0290] A third switching confirmation message is received from the first target cell, wherein the third switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

[0291] When the source cell switches the specific service of the terminal to the first target cell, the computer program is executed by the processor and further executes:

[0292] Sending a fourth handover request message to the first target cell, wherein the fourth handover request message includes the specific service bearer of the terminal;

[0293] receiving a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell;

[0294] A switching command message is sent to the terminal to instruct the terminal to switch the specific service bearer to the second target cell.

[0295] When the source cell switches the specific service of the terminal to the first target cell,

[0296] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0297] When the source cell switches the specific service of the terminal to the first target cell, the computer program, when executed by the processor, executes:

[0298] receiving a notification from the first target cell about releasing the terminal-related context of the source cell; or,

[0299] Receive a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

[0300] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0301] When the source cell switches the specific service of the terminal to the first target cell,

[0302] Accepting the specific service of the terminal switched from the first target cell; wherein the second target cell is a cell of the same system or a different system that supports the bearing capability of the specific service.

[0303] When accepting the specific service of the terminal switched from the first target cell, when the computer program is executed by the processor, the following steps are further performed:

[0304] The second target cell exchanges the specific service bearing capability supported by the second target cell with the first target cell; wherein,

[0305] The second target cell is a cell having a neighboring cell relationship with the first target cell.

[0306] The accepting of the specific service of the terminal switched from the first target cell, when the computer program is executed by the processor, further performs:

[0307] receiving a fifth handover request message sent by the first target cell;

[0308] The permission switching request is accepted based on the specific service carrying capability supported by the second target cell itself, and a fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

[0309] When the fifth handover confirmation message is sent to the first target cell, the computer program is executed by the processor and further executes:

[0310] Based on the switching message formats of the first target cell and the second target cell, the fifth switching confirmation message is adapted or reconstructed towards the first target cell.

[0311] When the source cell switches the specific service of the terminal to the first target cell, the computer program is executed by the processor and further executes:

[0312] receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal;

[0313] A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

[0314] When accepting the specific service of the terminal switched from the first target cell,

[0315] The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

[0316] After the terminal accesses the second target cell, the computer program is executed by the processor and further executes:

[0317] The second target cell directly notifies the source cell to release the terminal related context; or,

[0318] The second target cell notifies the source cell via the first target cell to release the terminal-related context.

[0319] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program performs:

[0320] receiving a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell;

[0321] The first target cell does not support the specific service carrying capability requested by the terminal for switching; the switching command message is sent by a second target cell of the same system or a different system that supports the specific service carrying capability, and the second target cell is a cell that has not been measured by the terminal.

[0322] After receiving the handover command message forwarded by the first target cell via the source cell, the computer program is executed by the processor and further executes:

[0323] The terminal initiates an access process in the second target cell and switches the specific service bearer to the second target cell.

[0324] The present invention is described below in conjunction with scenario embodiments.

[0325] In the related art, for a user who has activated the Voice over New Radio (VoNR) voice service in the frequency point 1 cell, when the user moves out of the coverage of the frequency point 1 cell and enters the coverage of the frequency point 2 cell, a switching of the connected service bearer including the VoNR voice service bearer will occur, such as Fig. 9 shown.

[0326] Here, since the frequency 2 cell adopts the EPS FB solution and does not have the ability to carry VoNR voice services, when the frequency 2 cell receives the access request of the VoNR voice service user sent by the frequency 1 cell, it will reject the switching request of the voice service bearer and accept the switching request of other data service bearers, which eventually causes the voice service to be deactivated after the user switches to the frequency 2 cell, that is, call drops occur during the switching process.

[0327] Based on this, an embodiment of the present invention proposes a voice service switching method in a specific service. When the target cell for switching does not have the ability to carry and accept voice services, the target cell will switch the switching user (terminal) to other cells in the same system or different systems that support the voice service carrying capability according to the voice solution support capability of the switching user (terminal), thereby achieving continuity of the voice service during the switching process.

[0328] Embodiment 1

[0329] In this embodiment, in a 5G system, the 700M cell (frequency 1 cell, i.e., the source cell) is configured with VoNR, and the 2.6GHz cell (frequency 2 cell, i.e., the first target cell) is configured with EPS FB. When a user who activates the VoNR voice service moves from the 700M cell to the 2.6GHz neighboring cell, an inter-frequency handover from 700M to 2.6GHz will occur. The 2.6GHz target cell obtains the bearer types requested for handover in the handover request message: 5QI 9, 5QI 1, and other data service bearers. The 2.6GHz cell does not have the 5QI 1 bearer capability.

[0330] The method of this embodiment is as Fig.10 As shown, including:

[0331] Step 1: For the 5QI 1 bearer not supported by the 2.6GHz cell, the 2.6GHz cell obtains the UE-NR-Capability of the switching terminal in the Source To Target Transparent Container to determine that the switching terminal supports VoNR and EPS FB voice solution capabilities for the 5QI 1 bearer.

[0332] Step 2: For the 5QI 1 bearer not supported by the 2.6 GHz cell, the 2.6 GHz cell compares the voice solution support capability of the switching terminal with its own voice solution support capability and finds that both the terminal and the cell itself support the EPS FB voice solution capability.

[0333] Step 3: The 2.6 GHz cell initiates a handover request to the 4G cell with the same coverage. The bearers requested for handover include 5QI9 and 5QI 1 bearers that the 2.6 GHz cell itself does not support and has not established.

[0334] Here, when the 2.6GHz cell establishes an Xn interface with other cells with the same coverage, they have exchanged the voice solution capabilities they support.

[0335] Among them, after the 2.6GHz cell receives the Source To Target Transparent Container sent by the source 700MHz cell, it needs to reconstruct it into a Source To Target Transparent Container supported by the 4G system according to the RRC message format of the 4G cell.

[0336] Step 4: After obtaining the admission permission from the 4G cell with the same coverage, the 2.6 GHz cell receives the handover command generated by its 4G cell with the same coverage and forwards it to the source 700 MHz cell.

[0337] Here, since the switching command is generated by the 4G system and received by the 5G system, the 2.6GHz cell does not need to reconstruct the switching command and can directly forward it to the source 700MHz cell.

[0338] Step 5: The terminal receives the switching command message sent by the source 700MHz cell, and accesses the 4G cell (ie, the second target cell) that has the same coverage as the 2.6GHz cell. The 5QI 9 and 5QI 1 bearers of the terminal are switched to the 4G cell and carried by the 4G cell.

[0339] Embodiment 2

[0340] In the 5G system of this embodiment, the 700M cell (frequency 1 cell) is configured with VoNR, and the 2.6GHz cell (frequency 2 cell) is configured with EPS FB. When a user who activates the VoNR voice service moves from the 700M cell to the 2.6GHz neighboring cell, a 700M to 2.6GHz inter-frequency handover will occur. The 2.6GHz target cell obtains the bearer type requested for handover in the handover request message, which are 5QI 9, 5QI 1 and other data service bearers. The 2.6GHz cell does not have the 5QI 1 bearer capability. The method of this embodiment is as follows Fig.11 As shown, including:

[0341] Step 1: For the 5QI 1 bearer not supported by the 2.6 GHz cell, the 2.6 GHz cell obtains the UE-NR-Capability of the switching terminal in the Source ToTarget Transparent Container to determine whether the switching terminal supports VoNR and EPS FB voice solution capabilities for the 5QI1 bearer.

[0342] Step 2: For 5QI 1 bearers not supported by the 2.6GHz cell, the 2.6GHz cell compares the voice solution support capability of the switching terminal with its own voice solution support capability, and finds that the terminal and its co-covered 5G inter-frequency neighboring cell (such as a 4.9GHz cell) support the VoNR voice solution capability.

[0343] Among them, the method for the 2.6GHz cell to know that its 5G heterofrequency neighboring cell with the same coverage supports VoNR capability is: when establishing the X2 interface between base stations, the VoNR voice solution capabilities between the interactive base stations.

[0344] Step 3: The 2.6 GHz cell initiates a handover request to the 5G inter-frequency cell with the same coverage. The bearers requested for handover include 5QI 9 and 5QI 1 bearers that the 2.6 GHz cell itself does not support and has not established.

[0345] Among them, after the 2.6GHz cell receives the Source To Target TransparentContainer sent by the source 700MHz cell, it needs to carry the content in the switching request sent to the 5G heterofrequency cell with the same coverage.

[0346] Step 4: After obtaining the admission permission of the 5G heterofrequency cell with the same coverage, the 2.6GHz cell receives the switching command generated by its 5G heterofrequency cell with the same coverage and forwards it to the source 700MHz cell.

[0347] Step 5: The terminal receives the switching command message sent by the source 700MHz cell, and accesses the 5G inter-frequency cell with the same coverage as the 2.6GHz cell. The terminal's 5QI 9 and 5QI 1 bearers are switched to the 5G inter-frequency cell for carrying.

[0348] It can be seen that the embodiment of the present invention can avoid the problem that when the switching user carries an activated voice service, the voice service bearer switching request is rejected during the switching process because the target side cell does not support the voice service carrying capacity, thereby avoiding the dropped calls caused by the deactivation of the voice service during the switching process and improving the user experience.

[0349] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A specific service switching method, characterized in that: The method is applied to a first target cell, comprising: When the source cell switches the specific service of the terminal to the first target cell, The first target cell switches the specific service of the terminal to the second target cell according to the specific service support capability of the terminal; wherein the second target cell is a cell of the same system or a different system that supports the specific service carrying capability; The first target cell switching the specific service of the terminal to the second target cell according to the specific service support capability of the terminal includes: receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal; Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal; receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal; A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

2. The method according to claim 1, characterized in that The specific business includes one or more of the following: The new air interface carries voice VoNR voice / video, evolved packet system voice fallback EPS Fallback voice / video, long-term evolution voice VoLTE voice / video, augmented reality AR / virtual reality VR / extended reality XR.

3. The method according to claim 1, characterized in that When the first target cell switches the specific service of the terminal to the second target cell, the method further includes: The first target cell exchanges with the second target cell the specific service bearing capability supported by the second target cell, wherein: The second target cell is a cell having a neighboring cell relationship with the first target cell.

4. The method according to claim 1, characterized in that: When the second switching request message is sent to the second target cell, the method further includes: Based on the switching message formats of the first target cell and the second target cell, the second switching request message is adapted or reconstructed towards the second target cell.

5. The method according to claim 1, characterized in that When the first target cell switches the specific service of the terminal to a second target cell, the method further includes: The first target cell notifies the source cell to release the terminal related context; or, The first target cell forwards a notification from the second target cell regarding releasing the terminal-related context of the source cell.

6. The method according to claim 1, characterized in that The first target cell switches the specific service of the terminal to a second target cell, and the method further includes: The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

7. A method for switching a specific service, characterized in that: The method is applied to a source cell, comprising: When the source cell switches the specific service of the terminal to the first target cell, Sending a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal; receiving a third handover confirmation message sent by the first target cell, wherein the third handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell according to the specific service support capability of the terminal; When the source cell switches the specific service of the terminal to the first target cell, it also includes The source cell receives a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell; The source cell sends a handover command message to the terminal, to instruct the terminal to handover the specific service bearer to the second target cell.

8. The method according to claim 7, characterized in that When the source cell switches the specific service of the terminal to the first target cell, the method further includes: The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

9. The method according to claim 7, characterized in that: When the source cell switches the specific service of the terminal to the first target cell, the method further includes: The source cell receives a notification from the first target cell about releasing the terminal-related context of the source cell; or, The source cell receives a notification from the second target cell forwarded by the first target cell regarding the source cell releasing the terminal-related context.

10. A method for switching a specific service, characterized in that: The method is applied to the second target cell, comprising: When the source cell switches the specific service of the terminal to the first target cell, the source cell accepts the specific service of the terminal switched by the first target cell according to the specific service support capability of the terminal; wherein the second target cell is a cell of the same system or a different system that supports the specific service bearing capability; The accepting the specific service of the terminal switched by the first target cell according to the specific service support capability of the terminal includes: receiving a fifth handover request message sent by the first target cell; A fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

11. The method according to claim 10, characterized in that When the specific service of the terminal switched by the first target cell according to the specific service support capability of the terminal is accepted, the method further includes: The second target cell exchanges the specific service bearing capability supported by the second target cell with the first target cell; wherein, The second target cell is a cell having a neighboring cell relationship with the first target cell.

12. The method according to claim 10, characterized in that When the fifth switching confirmation message is sent to the first target cell, the method further includes: Based on the switching message formats of the first target cell and the second target cell, the fifth switching confirmation message is adapted or reconstructed towards the first target cell.

13. The method according to claim 10, characterized in that When the source cell switches the specific service of the terminal to the first target cell, the method further includes: receiving a sixth handover request message forwarded by the source cell via the first target cell; wherein the sixth handover request message includes the specific service bearer of the terminal; A sixth handover confirmation message is sent to the source cell, wherein the sixth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell.

14. The method according to claim 10, characterized in that When accepting the specific service of the terminal switched from the first target cell, the method further includes: The terminal initiates access in the second target cell and switches the specific service bearer to the second target cell.

15. The method according to claim 14, characterized in that After the terminal accesses the second target cell, the method further includes: The second target cell directly notifies the source cell to release the terminal related context; or, The second target cell notifies the source cell via the first target cell to release the terminal-related context.

16. A method for switching a specific service, characterized in that: The method is applied to a terminal, comprising: receiving a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell according to the specific service support capability of the terminal; The first target cell does not support the specific service carrying capability requested by the terminal for switching; the switching command message is sent by the first target cell that does not support the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

17. The method according to claim 16, characterized in that After receiving the handover command message forwarded by the first target cell via the source cell, the method further includes: The terminal initiates an access process in the second target cell and switches the specific service bearer to the second target cell.

18. A specific service switching device, characterized in that: The device is applied to a first target cell, and includes: a first switching module; When the source cell switches the specific service of the terminal to the first target cell, The first switching module is used to switch the specific service of the terminal to the second target cell according to the specific service support capability of the terminal; wherein the second target cell is a cell of the same system or different system that supports the specific service carrying capability; The first target cell switching the specific service of the terminal to the second target cell according to the specific service support capability of the terminal includes: receiving a first handover request message sent by the source cell, wherein the first handover request message includes the specific service bearer and / or other service bearers of the terminal; Sending a second handover request message to the second target cell, wherein the second target cell supports the specific service bearing capability of the terminal; receiving a second handover confirmation message sent by the second target cell; the second handover confirmation message is sent by the second target cell after accepting and permitting the second handover request, and includes handover related information provided by the second target cell to the terminal; A first switching confirmation message is sent to the source cell, wherein the first switching confirmation message includes switching related information provided by the second target cell to the terminal, which is used by the terminal to switch the specific service bearer to the second target cell.

19. A specific service switching device, characterized in that: The device is applied to a source cell, and comprises: a first sending module and a first receiving module; When the source cell switches the specific service of the terminal to the first target cell, The first sending module is configured to send a third handover request message to the first target cell, wherein the third handover request message includes the specific service bearer of the terminal; The first receiving module is configured to receive a third handover confirmation message sent by the first target cell, wherein the third handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell according to the specific service support capability of the terminal; When the source cell switches the specific service of the terminal to the first target cell, it also includes The source cell receives a fourth handover confirmation message sent by the second target cell, wherein the fourth handover confirmation message includes handover related information provided by the second target cell to the terminal, and is used by the terminal to handover the specific service bearer to the second target cell; The source cell sends a handover command message to the terminal, to instruct the terminal to handover the specific service bearer to the second target cell.

20. A specific service switching device, characterized in that: The device is applied to a second target cell, and includes: a second switching module; When the source cell switches the specific service of the terminal to the first target cell, The second switching module is used to accept the specific service of the terminal switched from the first target cell according to the specific service support capability of the terminal; wherein the second target cell is a cell of the same system or different system that supports the specific service bearing capability; The accepting the specific service of the terminal switched by the first target cell according to the specific service support capability of the terminal includes: receiving a fifth handover request message sent by the first target cell; A fifth switching confirmation message is sent to the first target cell, wherein the fifth switching confirmation message includes the switching related information provided by the second target cell to the terminal, and is used by the first target cell to forward the switching related information to the terminal, so that the terminal switches the specific service bearer to the second target cell.

21. A specific service switching device, characterized in that: The device is applied to a terminal, and includes: A second receiving module is used to receive a handover command message forwarded by the first target cell via the source cell; the handover command message is used to instruct the terminal to handover the specific service bearer to the second target cell according to the specific service support capability of the terminal; The first target cell does not support the specific service carrying capability requested by the terminal for switching; the switching command message is sent by the first target cell that does not support the specific service carrying capability, and the second target cell is a neighboring cell of the first target cell.

22. A specific service switching device, characterized in that: The apparatus comprises: a processor and a memory for storing a computer program capable of running on the processor, When the processor is used to run the computer program, it executes the steps of the method described in any one of claims 1 to 6, or executes the steps of the method described in any one of claims 7 to 9, or executes the steps of the method described in any one of claims 10 to 15, or executes the steps of the method described in claim 16 or 17.

23. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the method described in any one of claims 1 to 6, or implements the steps of the method described in any one of claims 7 to 9, or implements the steps of the method described in any one of claims 10 to 15, or implements the steps of the method described in claim 16 or 17.

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