WO2016134574A1

WO2016134574A1 - Switching control method and system, and relevant apparatus

Info

Publication number: WO2016134574A1
Application number: PCT/CN2015/083865
Authority: WO
Inventors: 刘志敏; 刘世岳; 孙晓姬; 何晨; 刘维华
Original assignee: 华为技术有限公司
Priority date: 2015-02-28
Filing date: 2015-07-13
Publication date: 2016-09-01
Also published as: CN104812011A; CN104812011B

Abstract

Disclosed are a switching control method and system, and a relevant apparatus. The method in the embodiments of the present invention comprises: when a user equipment is switched from a source network cell to a target network cell, switching a voice bearer to a circuit domain, switching a video bearer to a packet domain, and carrying a video continuity identifier in a switching request message so as to be used for keeping video streams connected when the voice bearer is switched to the circuit domain and the video bearer is switched to the PS domain. The method can well ensure the quality of a voice service and a video service, and improve the user experience.

Description

Switching control method, system and related device

This application claims priority to Chinese Patent Application No. 201510091511.3, entitled "A Switching Control Method, System and Related Device", filed on February 28, 2015, the entire contents of In this application.

Technical field

The present invention relates to the field of communications, and in particular, to a handover control method, system, and related apparatus.

Background technique

In the wireless communication system, Universal Mobile Telecommunications System (UMTS) has been widely used, and Long Term Evolution (LTE) is gradually being used. User equipment is weak in LTE signal coverage and strong in UMTS signal coverage. In this case, you can switch to UMTS for service transmission.

Traditionally, after the user equipment switches from LTE to UMTS, both voice and video are switched to the circuit domain (64k), so that the voice service and the video service compete for bandwidth, and the video service is limited to 64k, and the quality is very poor. The quality of the video service cannot be guaranteed or even used, and the user experience is very bad.

Summary of the invention

The embodiments of the present invention provide a handover control method, system, and related apparatus, which are used to ensure voice and video quality after handover, and improve user experience.

In a first aspect, the present invention provides a handover control method, which may mainly include:

The source network side device sends a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device that Switching the voice bearer to the circuit domain and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, the target The network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

When the source network side device receives the handover response message sent by the target network side device, the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain. The voice bearer and the video bearer of the user equipment are deleted.

In a first possible implementation manner of the first aspect, before the step of the source network side device receiving the handover response message sent by the target network side device, the method further includes:

Receiving an update request sent by the target network side device, where the update request is used to notify the source network side device user equipment to delete the video bearer and bind the deleted video bearer to the default bearer, so that the target network side device The video bearer bound to the default bearer is handed over to the primary PDP context of the target network cell.

In conjunction with the first aspect, or the first possible implementation of the first aspect, in a second possible implementation, the video continuity identifier is located in a subscriber number.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in the third possible implementation, before the step of the source network side device sending the handover request message to the target network side device, the method further includes: Delete the default bearer with QCI 9.

In a second aspect, the present invention provides a handover control method, which may mainly include:

The target network side device receives a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device Switching the voice bearer to the circuit domain at the time of handover, and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

After the voice bearer is successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, the handover response message is sent to the source network side device, so that the source network side device deletes the voice bearer and the video bearer of the user equipment.

In a first possible implementation manner of the second aspect, the method further includes: binding the context of the handover failure to the primary PDP context when the video bearer is switched to the packet domain.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in the second possible implementation, the switching the video bearer to the packet domain may include: switching the video bearer to the target a secondary PDP context of the network cell, and binding the context of the handover failure to the primary PDP context; or, by sending an update request to the source network side device, so that the source network side device deletes the video bearer and the deleted video bearer Bind to the default bearer, bound to the default bearer The video carries a PDP context that is handed over to the target network cell.

In conjunction with the second aspect, or the first possible implementation of the second aspect, in a third possible implementation, the video continuity identifier is located in a subscriber number.

In a third aspect, the present invention provides a switching control apparatus, which may mainly include:

a sending unit, configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device Switching the voice bearer to the circuit domain at the time of handover, and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

a processing unit, configured to receive a handover response message sent by the target network side device, where the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, The voice bearer and the video bearer of the user equipment are deleted.

In a first possible implementation manner of the third aspect, the apparatus further includes: an updating unit, configured to receive an update request sent by the target network side device, where the update request is used to notify the source network side device to delete the video bearer Binding the deleted video bearer to the default bearer, so that the target network side device switches the video bearer bound to the default bearer to a primary PDP context of the target network cell.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner, the apparatus may further include: a deleting unit, configured to delete a default bearer with a QCI of 9.

In a fourth aspect, the present invention provides a switching control apparatus, which may mainly include:

a receiving unit, configured to receive a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side The device switches the voice bearer to the circuit domain at the time of the handover, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

a switching unit, configured to switch the voice bearer to the circuit domain, and switch the video bearer to the packet domain;

a sending unit, configured to: after the voice bearer is successfully switched to the circuit domain, and successfully switch the video bearer to the packet domain, send a handover response message to the source network side device, so that the source network side device deletes the voice bearer of the user equipment And video hosting.

In a first possible implementation manner of the fourth aspect, the switching unit is further configured to switch the video bearer to a secondary PDP context of a target network cell, and bind the handover failed context to a primary PDP context. Or sending an update request to the source network side device, so that the source network side device deletes the video bearer and binds the deleted video bearer to the default bearer, and binds the video bearer to the default bearer. Switch to a PDP context of the target network cell.

In a fifth aspect, the present invention further provides a handover control system, which may mainly include a source network side device and a target network side device, where:

The target network side device is a handover control device as described in the fourth aspect;

The source network side device is configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify The target network side device switches the voice bearer to the circuit domain at the time of handover, and switches the video bearer to the packet domain, where the handover request message carries a video for keeping the video stream released when the voice bearer is switched to the circuit domain. Continuity identification.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

When the user equipment in the present invention is switched from the source network cell to the target network cell, the voice bearer is switched to the circuit domain, the video bearer is switched to the packet domain, and the video continuity identifier is carried in the handover request message, so that the voice bearer is switched. It is used to keep the video stream released when the video is switched to the PS domain, which can ensure the quality of voice services and video services and improve the user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings according to these drawings without paying any creative work.

1 is a schematic flowchart of a handover control method according to an embodiment of the present invention;

2 is another schematic flowchart of a handover control method according to an embodiment of the present invention;

3 is a signaling flowchart of a handover control method according to an embodiment of the present invention;

4 is a schematic structural diagram of a handover control apparatus according to an embodiment of the present invention;

FIG. 5 is another schematic structural diagram of a handover control apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a network controller according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the present invention provides a handover control method, which is applicable to a wireless communication system. In the embodiment of the present invention, the LTE/LTE-A is used in the case where the LTE signal coverage is weak and the UMTS signal coverage is strong. The method for the wireless communication system to switch to the UMTS wireless communication system for service transmission is analyzed. The method will be described in detail by using the source network side device and the target network side device respectively. Please refer to Figure 1 to Figure 6.

The embodiment of the present invention provides a handover control method, which is described in the perspective of a source network side device for the convenience of description. For example, the source network side device may be a Long Term Evolution (LTE) network. The base station, that is, the eNodeB, may also be a device of the core network, and the target network side device may be a Radio Network Controller (RNC), a Base Station Controller (BSC), or an access controller (Access). Network devices such as Controller, AC).

Please refer to FIG. 1. FIG. 1 is a schematic flowchart of a handover control method according to an embodiment of the present invention, where the handover control method may include the following steps:

Step 101: The source network side device sends a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network. The side device switches the voice bearer to the circuit domain when switching, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is deployed in the source network cell Network side device;

Step 102: When the source network side device receives the handover response message sent by the target network side device, the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet. The domain deletes the voice bearer and video bearer of the user equipment.

When the user equipment switches from the source network cell to the target network cell, the user equipment may support the secondary activation of the PDP initiated by the target network cell, or may not be supported. The target network side device can directly update the voice bearer and the video bearer. If the user equipment does not support the PDP secondary activation initiated by the target network cell, the handover may fail. In this embodiment, the switching of the video bearer to the packet domain may include:

The video bearer is switched to the secondary PDP context of the target network cell, and the target network cell may update the PDP context of the successful handover, match the QoS policy of the target network, and bind the handover failed context to the primary PDP context.

In addition, the video bearer may be directly switched to the primary PDP context, which may include: receiving an update request sent by the target network side device, where the update request is used to notify the source network side device user equipment to delete the video bearer and delete the video bearer. The video bearer is bound to the default bearer, so that the target network side device switches the video bearer bound to the default bearer to a primary PDP context of the target network cell. After the voice bearer is switched, the source bearer deletes the voice bearer and the video bearer, and binds the deleted video bearer to the default bearer, so that when the video bearer is switched, the default bearer is switched to the target network cell. One PDP context.

In some embodiments, since the Android system does not support multiple access point APNs, the default bearer with a QCI of 9 may be deleted before the handover.

In some embodiments, a new 3 bytes can be added in the C-MSISDN as the video continuity identifier v'SRVCC (the full name of the v'SRVCC is Single Radio Video Call Continuity). For example, the v'SRVCC can be 999 or the like. 3 bytes different from the user number.

Referring to FIG. 2, FIG. 2 is another schematic flowchart of a handover control method according to an embodiment of the present disclosure, where the handover control method may include:

Step 201: The target network side device receives a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target. The network side device switches the voice bearer to the circuit domain at the time of handover, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for maintaining the video stream release when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

Step 202: After successfully switching the voice bearer to the circuit domain, and successfully switching the video bearer to the packet domain, sending a handover response message to the source network side device, so that the source network side device deletes the voice bearer and the video of the user equipment. Hosted.

When the user equipment switches from the source network cell to the target network cell, the user equipment may support the secondary activation of the PDP initiated by the target network cell, or may not be supported.

The target network side device can directly update the voice bearer and the video bearer. If the user equipment does not support the PDP secondary activation initiated by the target network cell, the handover may fail. In this embodiment, the switching of the video bearer to the packet domain may include:

In addition, the video bearer may be directly switched to the primary PDP context, which may include: sending an update request to the source network side device, so that the source network side device deletes the video bearer and binds the deleted video bearer to the missing On the provincial bearer, the video bearer bound to the default bearer is switched to the primary PDP context of the target network cell. After the voice bearer is switched, the source bearer deletes the voice bearer and the video bearer, and binds the deleted video bearer to the default bearer, so that when the video bearer is switched, the default bearer is switched to the target network cell. One PDP context.

In some embodiments, the video continuity identifier v'SRVCC, for example, v'SRVCC may be 999 and other three bytes different from the user number.

For a better understanding of the technical solution of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the source network side device and the target network side device.

Referring to FIG. 3, FIG. 3 is a signaling flowchart provided by an embodiment of the present invention.

Step 301: The Evolved Universal Terrestrial Radio Access Network (E-UTRAN) sends a handover control request message to the Mobility Management Entity (MME), indicating that the handover is to switch the voice bearer. In the CS (Circuit Switched) domain, the video is switched to a Packet Switched (PS) domain, and the handover control request message carries the v'SRVCC flag;

The E-UTRAN performs handover control on the UE according to the measurement result of the UE. The LTE network may directly send the handover control request message to the UMTS or perform the handover control by using the MME. This embodiment is exemplified by the handover control by the MME, and does not constitute a limitation of the present invention.

Step 302: The MME performs bearer separation, that is, the bearer with QCI=1, the bearer with QCI=2, and the bearer with QCI=5 are separated from other PS bearers.

If the Android system does not support multiple APNs, in step 302, the MME may also initiate a PDN Connectivity deletion process to delete the default bearer of QCI=9; if not, the default bearer of QCI=9 may not be deleted.

After the bearer is separated, the redirection to the MSC Server and the SGSN may be separately initiated. The MME initiates a QCI=1 bearer handover to the CS to the MSC Server, and initiates a bearer with QCI=2 and QCI=5 to the SGSN to redirect to the PS.

Step 303: The MME initiates a request for the QCI=1 handover to the CS to the MSC Server, where the request carries the v’SRVCC;

The v'SRVCC is used by the MME to notify the IP Multimedia Subsystem (IMS, IP Multimedia Subsystem) not to close the video port through the MSC Server. This is because, when the IMS system detects that the voice is switched to CS TS11, the IMS side cuts off the video bearer. To keep the video stream released, the v’SRVCC identifier is added, and the MME notifies the IMS through the MSC Server that the video port is not closed.

It should be understood that the handover request message also carries an IMSI, a Target ID, an STN-SR, Identification of C-MSISDN, Source to Target Transparent Container, MM Context, and Emergency Indication.

After receiving the request for redirecting to the CS, the MSC Server returns a response message responding to the request for redirecting to the CS.

Step 304: The MME initiates a request for redirection of the QCI=2 to the PS to the SGSN.

The MME in LTE sends a request redirected to the PS to the SGSN in the UMTS, the request carrying the generic source to Target Transparent Container, the MM Context and the PDN Connections IE, wherein the PDN Connections IE includes the bearer with QCI=5 and QCI=2 Host ID.

After receiving the request for redirecting to the PS, the SGSN returns a response message responding to the request redirected to the PS.

It should be noted that steps 303 and 304 are independent of timing.

Step 305: After receiving the response message of the MSC Server and the SGSN, the MME sends a handover command message to the UE, so that the UE switches from LTE to UMTS.

After the UE completes the handover, the RNS sends the SES to the MSC Server, and the UE reestablishes a connection with the target MSC Server, and can send and receive voice information.

Step 306, the CS handover is completed, and the MME deactivates the QCI=1 bearer.

Step 307: After the PS handover is completed, the Target SGSN initiates a bearer update request, and the user plane switches from the source eNodeB to the Target RNC.

Step 308: After the PS handover is completed, the MME initiates a session deletion request, and deletes the IMS APN related session and bearer (QCI=2 and QCI=5).

In the following, the specific application example is used to describe how the video service on the QCI=2 bearer is redirected to the UMTS network once PDP context when the UE does not support the secondary activation of the PDP initiated by the UMTS network:

In an implementation manner, after the CS handover is complete, in step 306, the LTE deletes the QCI=1 and the QCI=2 bearer, and the video service flow is bound to the default bearer on the LTE side, which may include the following steps:

In step 306, after the CS handover is completed, the QCI=1 and QCI=2 bearers are deleted, and the video stream is bound to the QCI=5 default bearer. Then, the handover of the PS is switched to the PS with the QCI=5 bearer. The data can be planned in advance so that the video stream can be bound to QCI=5.

That is to say, in the UMTS network, the video stream adopts a PDP context; in the LTE network, the video stream adopts a proprietary bearer.

In the embodiment, the deleted QCI=2 bearer is initiated by the MME, has only dependence on the MME, and has no dependency on other network elements. Therefore, when the mobile phone switches to the UMTS network, the implementation is preferred if the mobile phone does not support secondary PDP activation initiated by the UMTS network.

In an implementation manner, the bearer is directly switched from the LTE network to the UMTS network, and the bearer is updated by the UMTS system to the bearer that successfully switches, and the bearer that fails the handover is initiated, and the bearer that fails the handover is bound to the primary PDP context.

For the bearer that fails to be handed over, the SGSN may initiate a bearer deletion request to the SGW/PGW, and the GGSN fails to install the PCC rule with the RAT Type and QCI=2, and the PCRF deletes the rule information that fails to be installed, and returns the CCA information to the GGSN. In response to the message, UGW binds the failed Rule information to a PDP context.

It can be understood that if the GGSN does not receive the message that the rule installation fails, the mobile phone supports the secondary PDP activation, and then the MME continues to perform step 308.

It should be noted that, in this embodiment, when the mobile phone supports secondary PDP context activation, the video can be switched to a dedicated bearer, and the experience is guaranteed. When the secondary PDP context activation is not supported, the video can be switched to a PDP context. This embodiment can adapt to the case where the mobile phone supports secondary PDP context activation and does not support secondary PDP context activation. Therefore, when the mobile phone switches to the UMTS network, the implementation is preferred if the mobile phone supports secondary PDP activation initiated by the UMTS network.

Therefore, if the UE is in the UMTS network supporting the network-initiated secondary PDP activation, the QCI=2 bearer is switched to the UMTS network secondary PDP context, only step 307 is performed;

If the UE does not support the secondary PDP activation initiated by the UMTS network, the QCI=2 bearer data needs to be mapped to the default bearer of the UMTS (that is, the primary PDP context), and the SGSN needs to initiate a secondary PDP context deletion process. That is, in step 307, the method further includes: the PS handover is completed, and the PGSN initiates a failed PDP context deletion procedure to notify the GGSN rule establishment failure that the GGSN binds the video stream to the UMTS primary PDP context.

In this embodiment, in order to keep the video stream released, a new three-byte (999) identifier v'SRVCC may be added in the C-MSISDN. For the implementation manner, refer to Table 1 and Table 2, where the table is One is the conventional implementation, and the second is the implementation of adding v'SRVCC in the present invention:

Table I

Table II

The v'SRVCC is transmitted from the MME to the MSC Server through the Sv interface, and the MSC Server transmits the v'SRVCC identifier to the SBC through the Sv interface (the interface between the MME and the MSC Server). Then, during the session transfer process, the MSC Server passes The SIP Invite message is transmitted to the ICSCF-SCC AS. After the SBC obtains the C-MSISDN, it resolves to switch for the video call without closing the video.

In order to facilitate the implementation of the handover control method provided by the embodiment of the present invention, the embodiment of the present invention further provides an apparatus based on the foregoing handover control method. The meaning of the noun is the same as that in the above-mentioned switching control method. For specific implementation details, reference may be made to the description in the method embodiment.

A switching control device is located on the LTE network side. Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a handover control apparatus according to an embodiment of the present invention. The handover control apparatus may include: a sending unit 401 and a processing unit 402. ;among them,

The sending unit 401 is configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side The device switches the voice bearer to the circuit domain at the time of the handover, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

The processing unit 402 is configured to receive a handover response message sent by the target network side device, where the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and successfully switch the video bearer to the packet domain. Then, the voice bearer and the video bearer of the user equipment are deleted.

Further, the switching control apparatus may further include an updating unit 403, configured to receive an update request sent by the target network side device, where the update request is used to notify the source network side device user equipment to delete the video bearer and delete the deleted video bearer. Binding to the default bearer, so that the target network side device switches the video bearer bound to the default bearer to a primary PDP context of the target network cell.

Further, the handover control apparatus may further include a deleting unit 404, configured to delete a default bearer with a QCI of 9.

It should be noted that the specific implementation in this embodiment can be referred to the foregoing embodiment, and details are not described herein again.

It can be seen that, when the user equipment in the present invention switches from the source network cell to the target network cell, the voice bearer is switched to the circuit domain, the video bearer is switched to the packet domain, and the handover request message is carried. With the video continuity identifier, the voice bearer is switched to the circuit domain and the video stream is released when the video is switched to the PS domain, which can ensure the quality of the voice service and the video service, and improve the user experience.

The embodiment also provides a switching control device, which is located on the UMTS network side. Referring to FIG. 5, FIG. 5 is another schematic structural diagram of the switching control device according to the embodiment of the present invention. The switching control device may include: a receiving unit 501, a switching unit 502, and a transmitting unit 503; wherein

The receiving unit 501 is configured to receive a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network. The side device switches the voice bearer to the circuit domain when switching, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

The switching unit 502 is configured to switch the voice bearer to the circuit domain, and switch the video bearer to the packet domain;

The sending unit 503 is configured to: after the voice bearer is successfully switched to the circuit domain, and successfully switch the video bearer to the packet domain, send a handover response message to the source network side device, so that the source network side device deletes the voice of the user equipment Bearer and video bearer.

Further, the switching unit 502 is further configured to switch the video bearer to a secondary PDP context of the target network cell, and bind the handover failed context to the primary PDP context; by sending an update request to the source network side device. And the source network side device is configured to delete the video bearer and bind the deleted video bearer to the default bearer, and switch the video bearer bound to the default bearer to a primary PDP context of the target network cell.

In addition, this embodiment further provides a network side device, that is, the source network side device described above, The device is deployed in the source network cell of the user equipment. The structure is as shown in FIG. 6. The processor 60 is connected to the bus, and the network side device may further include a memory 61, a transmitter 62, a receiver 63, and the like.

The memory 61 is used to store information such as necessary files for processing data by the processor 60, such as program code, and the program code stored in the memory 61 in the embodiment is used to implement the statistical method of the redirection performance index described in the first embodiment of the foregoing method. And then executing the program code by the processor 60;

The processor 60 is configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side The device switches the voice bearer to the circuit domain at the time of the handover, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the network side device is a network side device deployed in the source network cell;

Receiving the handover response message sent by the target network side device, the handover response message is used to notify the network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, and the user equipment is deleted. Voice bearer and video bearer.

The present embodiment further provides a network side device, that is, the target network side device described above, which is deployed in a target network cell of the user equipment, and the structure diagram may be similar to the foregoing FIG. 6, including: a processor connected to the bus, and The network side device may further include a memory or the like, wherein:

The program for storing the necessary data of the processing data of the processor, such as the program code, the program code stored in the memory in the embodiment is used to implement the statistical method of the redirection performance indicator described in the second embodiment of the method, and then The processor executes the program code;

a processor, configured to receive a handover request message sent by the source network side device, where the handover request message is used to notify the network side device user equipment to switch from the source network cell to the target network cell, and notify the network side device to Switching the voice bearer to the circuit domain and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, the network The side device is a network deployed in the target network cell a side device, where the source network side device is a network side device deployed in the source network cell; when the voice bearer is successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, the source network side device sends the switch to the source network side device. And responding to the message, so that the source network side device deletes the voice bearer and the video bearer of the user equipment.

The present invention further provides a handover control system, including a source network side device deployed in a source network cell where a user equipment is currently located, and a target network side device in a target network cell to which the user equipment is to be switched, where:

The structure of the source network side device is the same as the structure of the switching control device described above; or the structure of the network side device as described above is not described herein;

The structure of the target network side device is the same as the structure of the switching control device described above; or the structure of the network side device as described above is not described herein.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be performed by a program to instruct related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: ROM, RAM, disk or CD.

The above is a detailed description of a handover control method, system and related apparatus provided by the present invention. The principles and implementation manners of the present invention are described in the following. The description of the above embodiments is only for helping to understand the present invention. The method of the invention and its core idea; at the same time, for those skilled in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation manner and the scope of application. It is understood to be a limitation of the invention.

Claims

A switching control method, comprising:

The source network side device sends a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device that Switching the voice bearer to the circuit domain and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, the target The network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

When the source network side device receives the handover response message sent by the target network side device, the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain. The voice bearer and the video bearer of the user equipment are deleted.
The method according to claim 1, wherein before the step of the source network side device receiving the handover response message sent by the target network side device, the method further includes:

Receiving an update request sent by the target network side device, where the update request is used to notify the source network side device user equipment to delete the video bearer and bind the deleted video bearer to the default bearer, so that the target network side device The video bearer bound to the default bearer is handed over to the primary PDP context of the target network cell.
Method according to claim 1 or 2, characterized in that

The video continuity identifier is located in the subscriber number.
The method according to claim 1 or 2, wherein before the step of the source network side device transmitting the handover request message to the target network side device, the method further includes:

Delete the default bearer with QCI 9.
A switching control method, comprising:

The target network side device receives a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device Switching the voice bearer to the circuit domain at the time of handover, and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, The target network side device is the target network a network side device deployed in the cell, where the source network side device is a network side device deployed in the source network cell;

After the voice bearer is successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, the handover response message is sent to the source network side device, so that the source network side device deletes the voice bearer and the video bearer of the user equipment.
The method of claim 5, further comprising:

When the video bearer is switched to the packet domain, the context of the failed handover is bound to the primary PDP context.
The method according to claim 5 or 6, wherein the switching the video bearer to the packet domain may include:

Switching the video bearer to a secondary PDP context of the target network cell, and binding the handover failed context to a primary PDP context; or,

Sending an update request to the source network side device, so that the source network side device deletes the video bearer and binds the deleted video bearer to the default bearer, and switches the video bearer bound to the default bearer to One PDP context of the target network cell.
Method according to claim 5 or 6, characterized in that

The video continuity identifier is located in the subscriber number.
A switching control device, comprising:

a sending unit, configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side device Switching the voice bearer to the circuit domain at the time of handover, and switching the video bearer to the packet domain, wherein the handover request message carries a video continuity identifier for maintaining video stream release when the voice bearer is switched to the circuit domain, The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

a processing unit, configured to receive a handover response message sent by the target network side device, where the handover response message is used to notify the source network side device that the voice bearer has been successfully switched to the circuit domain, and the video bearer is successfully switched to the packet domain, The voice bearer and the video bearer of the user equipment are deleted.
The device of claim 9 wherein:

The method further includes: an update unit, configured to receive an update request sent by the target network side device, where the update request is used to notify the source network side device to delete the video bearer and bind the deleted video bearer to the default bearer, so that The target network side device switches the video bearer bound to the default bearer to a primary PDP context of the target network cell.
Device according to claim 9 or 10, characterized in that

The method further includes: deleting a unit, and deleting a default bearer with a QCI of 9.
A switching control device, comprising:

a receiving unit, configured to receive a handover request message sent by the source network side device, where the handover request message is used to notify the target network side device user equipment to switch from the source network cell to the target network cell, and notify the target network side The device switches the voice bearer to the circuit domain at the time of the handover, and switches the video bearer to the packet domain, where the handover request message carries a video continuity identifier for keeping the video stream released when the voice bearer is switched to the circuit domain. The target network side device is a network side device deployed in the target network cell, and the source network side device is a network side device deployed in the source network cell;

a switching unit, configured to switch the voice bearer to the circuit domain, and switch the video bearer to the packet domain;

a sending unit, configured to: after the voice bearer is successfully switched to the circuit domain, and successfully switch the video bearer to the packet domain, send a handover response message to the source network side device, so that the source network side device deletes the voice bearer of the user equipment And video hosting.
The device according to claim 12, characterized in that

The switching unit is further configured to switch the video bearer to a secondary PDP context of the target network cell, and bind the handover failed context to the primary PDP context; or send an update request to the source network side device, so that The source network side device deletes the video bearer and binds the deleted video bearer to the default bearer, and switches the video bearer bound to the default bearer to a primary PDP context of the target network cell.
A handover control system, comprising: a source network side device and a target network side device, wherein:

The target network side device is the switching control device according to claim 12 or 13;

The source network side device is configured to send a handover request message to the target network side device, where the handover request message is used to notify the target network side device user equipment to switch from a source network cell to a source network a target network cell, and notifying the target network side device to switch the voice bearer to the circuit domain at the time of handover, and switching the video bearer to the packet domain, where the handover request message carries when the voice bearer is switched to the circuit domain The video continuity identifier that keeps the video stream released.