WO2010012225A1

WO2010012225A1 - Handover method and apparatus

Info

Publication number: WO2010012225A1
Application number: PCT/CN2009/072976
Authority: WO
Inventors: 沈志超
Original assignee: 华为技术有限公司
Priority date: 2008-07-30
Filing date: 2009-07-29
Publication date: 2010-02-04
Also published as: CN101640916A; CN101640916B

Abstract

A handover method and apparatus in mobile telecommunication technical field, the method includes: capability information of both a mobile terminal UE and its handover target system is obtained (101), and if it has been determined that the mobile terminal UE and its handover target system support the high speed physical downlink shared control channel less operation according to the obtained capability information of both a mobile terminal UE and its handover target system, a inter-system handover command message with the high speed physical downlink shared control channel less operation information is distributed (102). The system capability can be enhanced by the implementation of present invention.

Description

Switching method and device

This application claims the priority of the Chinese Patent Application filed on July 30, 2008, the Chinese Patent Application No. 200810135117.5, entitled "Closing Support Method and Apparatus for Reducing HS-SCCH Channel Operating System", the entire contents of which are The citations are incorporated herein by reference.

Technical field

The present invention relates to the field of mobile communication technologies, and in particular, to a handover method and apparatus for supporting an operating system for reducing a high-speed physical downlink shared control channel.

Background technique

With the continuous development of mobile communication and the Internet, in the 3G (3rd Generation, 3rd Generation Mobile Communication) system, the functions performed by the RNC (Radio Network Controller) are no longer like 2G (2nd Generation, second generation). In the mobile communication system, the BSC (Base Station Controller) is only the management of radio resources and terrestrial resources. The 3G system also involves participating in QoS.

(Quality of Service) related high-speed network call admission control algorithm; negotiation with network resources between the user and the core network; completion of monitoring of handover of the Iu interface, and the like. The 3G system can provide more high-speed users on the same wireless carrier frequency through HSPA (High Speed Packet Access). HSPA is divided into HSDPA (High Speed Downlink Packet Access) and HSUPA (High Speed Uplink Packet Access).

When a mobile terminal UE supporting the HS-SCCH Less Operation function is switched from a 2G system to a 3G system, the BSC needs to send a RELOCATION REQUIRED message to the CN (Core Network). The message carries information about the target cell and the UE; and then CN will RELOCATION REQUEST

(Migration request) is sent to the RNC; the RNC determines whether the UE can be accessed according to the information about the UE carried in the RELOCATION REQUEST message and its own situation; when the RNC can access the UE, it will send RELOCATION REQUEST ACKNOWLEDGE ( The migration request acknowledgement message is sent to the CN to cut the UE from the 2G system to the 3G system. However, in the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: When a mobile terminal supporting the HS-SCCH Less Operation function cuts into a 3G system supporting the HS-SCCH Less Operation function, the 3G system only The mobile terminal can be built on the HSPA transmission bearer, and the HS-SCCH Less Operation function supporting the HS-SCCH Less Operation system cannot be fully utilized.

Summary of the invention

Embodiments of the present invention provide a handover method and apparatus. The embodiment of the present invention uses the following technical solutions:

In one aspect, an embodiment of the present invention provides a handover method, where the method includes:

Obtaining UE capability information of the mobile terminal and target system capability information of the handover;

If it is determined that the mobile terminal UE and the target system of the handover support the operation function of reducing the high-speed physical downlink shared control channel according to the acquired mobile terminal UE capability information and the target system capability information of the handover, the delivery carries a reduced high speed A different system switching command message that shares the control channel information in the physical downlink.

In another aspect, an embodiment of the present invention provides a switching apparatus, including:

An information acquiring unit: configured to acquire UE capability information of the mobile terminal and target system capability information of the handover;

The capability judging unit is configured to determine, according to the mobile terminal UE capability information acquired by the information acquiring unit and the target system capability information of the handover, whether the UE and its switched target system support reducing the high-speed physical downlink shared control channel operation function;

The information sending unit is configured to: if the capability determining unit determines that the mobile terminal UE and the target system of the handover support the operation function of reducing the high-speed physical downlink shared control channel, the sending the information carrying the reduced high-speed physical downlink shared control channel information System switch command message.

The method and device for switching the HS-SCCH Less Operation system provided by the embodiment of the present invention, according to the obtained UE terminal capability information of the mobile terminal and the target system capability information of the handover, determine whether the target system of the mobile terminal and its different system is supported by the HS system. -SCCH Less Operation function, If the HS-SCCH Less Operation function can be supported, the system carries a different system handover command message that reduces the operation information of the high-speed physical downlink shared control channel, and starts the HS-SCCH Less Operation function between the target system and the mobile terminal, so that when moving When the user needs to communicate with the target system, the newly transmitted service data does not need to specify the data transmission format of the HS-SCCH (High Speed Physical Downlink Shared Control Channel), and only passes when the service data is retransmitted. The HS-SCCH indicates the transmission format of the retransmitted data, which reduces the amount of data transmitted, and at the same time reduces the capacity of the target system, thereby enabling the target system to access more users and increase system capacity.

DRAWINGS

1 is a flowchart of a method for cutting into an HS-SCCH Less Operation system according to an embodiment of the present invention;

2 is a flow chart of another method for cutting into an HS-SCCH Less Operation system according to an embodiment of the present invention;

3 is a schematic structural diagram of an apparatus for cutting into an HS-SCCH Less Operation system according to an embodiment of the present invention;

4 is a schematic structural diagram of another apparatus for cutting into an HS-SCCH Less Operation system according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method for cutting into an HS-SCCH Less Operation system according to an embodiment of the present invention.

detailed description

The method and apparatus for cutting into the HS-SCCH Less Operation system according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , a method for switching a HS-SCCH Less Operation system is provided in the embodiment of the present invention. In the process of implementing the embodiment of the present invention, the method includes:

101: Acquire mobile terminal UE capability information and target system capability information of the handover; for example, may be acquired by a controller of the target system. 102: Determine, according to the acquired mobile terminal UE capability information and the target system capability information of the handover, that the mobile terminal UE and the target system of the handover support the HS-SCCH Less Operation function of reducing the high-speed physical downlink shared control channel operation, Then, the inter-system handover command message carrying the HS-SCCH less information is reduced. The HS-SCCH less information may be configuration information required to perform the HS-SCCH Less Operation function, and the information may be carried in a cell in the different system handover command message. The description of the HS-SCCH less information mentioned in the embodiments of the present invention is applicable to all embodiments of the present invention, and details are not described herein.

As shown in FIG. 2, another method for switching the HS-SCCH Less Operation system provided by the embodiment of the present invention, in the process of implementing the embodiment of the present invention, includes:

201: The radio network controller RNC acquires the UE capability information of the mobile terminal and the target system capability information of the handover;

202: If it is determined that the mobile terminal service is established on a high-speed packet access HSPA transmission bearer according to the mobile terminal UE capability information and the target system capability information of the handover, according to the mobile terminal UE capability information and the handover thereof The target system capability information determines whether the mobile terminal UE and its switched target system support reducing the high speed physical downlink shared control channel operation HS-SCCH Less Operation function. Of course, you can also determine whether to support the HS-SCCH Less Operation function, and then determine whether it is established on the high-speed packet access HSPA transport bearer, or at the same time. The embodiment of the present invention does not limit the above implementation order. When the mobile terminal service is established on the high-speed packet access HSPA transmission bearer, if the mobile terminal UE and its switched target system support the HS-SCCH Less Operation function, step 203 is performed.

203: If the mobile terminal UE and the target system of the handover support the HS-SCCH Less Operation function, send a different system handover command message carrying the HS-SCCH less Information. For example, when the UE migrates from the 2G network system to the 3G network system, the heterogeneous system handover command message HANDOVER TO UTRAN COMMAND carrying the HS-SCCH less Information may be assembled into the RELOCATION REQUEST ACKNOWLEDGE message for transmission. Example below 1 is a list of cells included in the HANDOVER TO UTRAN COMMAND message, where the HS-SCCH less Information information is a new optional cell; wherein MP represents that the cell is necessary and should always appear in the signaling The OP represents that the cell is optional, that is, it may or may not appear in the signaling, regardless of the existence or value of other cells in the same signaling.

204: According to the different system handover command message, the mobile terminal UE and the target system supporting the HS-SCCH Less Operation start the HS-SCCH Less Operation function.

As shown in FIG. 3, a switching device for cutting into the HS-SCCH Less Operation system is provided by the embodiment of the present invention; the device includes:

The information acquiring unit 301 is configured to acquire mobile terminal UE capability information and target system capability information of the handover;

The capability determining unit 302 is configured to determine, according to the mobile terminal UE capability information acquired by the information acquiring unit and the target system capability information of the handover, whether the UE and the target system that it switches support to reduce the high-speed physical downlink shared control channel operation function. ;

The information sending unit 303 is configured to: if the capability determining unit determines the mobile terminal UE and The target system of the handover supports the operation function of the high-speed physical downlink shared control channel, and the different system handover command message carrying the information of the high-speed physical downlink shared control channel is delivered.

The specific process of applying the device embodiment of the present invention is basically similar to the description of the method embodiment of the present invention, and details are not described herein again.

As shown in FIG. 4, another switching device for cutting into the HS-SCCH Less Operation system is provided by the embodiment of the present invention; the device includes:

The information acquiring unit 401 is configured to acquire mobile terminal UE capability information and target system capability information of the handover;

The bearer determining unit 402 is configured to determine, according to the mobile terminal UE capability information and the target system capability information of the handover, whether the mobile terminal service is established on a high-speed packet access HSPA transport bearer, if it is determined that the mobile terminal service is established. Notifying the capability determining unit on the high speed packet access HSPA transport bearer;

The capability determining unit 403 is configured to determine, according to the mobile terminal UE capability information acquired by the information acquiring unit and the target system capability information of the handover, whether the UE and the target system that it switches support to reduce the high-speed physical downlink shared control channel operation function. And determining whether the UE and its switched target system support reducing the high-speed physical downlink shared control channel when receiving the notification that the mobile terminal service is sent by the bearer determining unit to establish a high-speed packet access HSPA transport bearer. Operational function.

The information sending unit 404 is configured to: if the capability determining unit determines that the mobile terminal UE and the target system of the handover support the function of reducing the high-speed physical downlink shared control channel, the transmitting the information that reduces the high-speed physical downlink shared control channel information The different system switching command message; for example, the migration request confirmation message in which the different system switching command message is assembled may be delivered.

The function starting unit 405 is configured to start the HS-SCCH Less Operation function according to the different system switching command message, the mobile terminal UE, and the HS-SCCH Less Operation target system.

The specific process of applying the device embodiment of the present invention is substantially similar to the description of the method embodiment of the present invention, and details are not described herein again. As shown in FIG. 5, a flowchart of a handover method for the HS-SCCH Less Operation system is provided in the embodiment of the present invention; the specific steps are as follows:

501, the BSC sends a RELOCATION REQUIRED message to the CN (Core Network); the BSC sends a relocation request to the core network by sending a RELOCATION REQUIRED message; the message carries information about the target cell and the UE;

502. After receiving the RELOCATION REQUIRED message, the CN forwards the BSC request to the RNC through the RELOCATION REQUEST message according to the information about the target cell carried by the CN.

503. The RNC determines, according to the information about the UE carried in the RELOCATION REQUEST message, whether the UE and the UE can support the HS-SCCH Less Operation function. When the RNC supports the HS-SCCH Less Operation function, the RNC carries the HS- The HCHOVER TO UTRAN COMMAND message of the SCCH less Information is assembled to the RELOCATION REQUEST ACKNOWLEDGE message sent to the CN, and the HS-SCCH less Information may be a cell of the HANDOVER TO UTRAN COMMAND message;

504, after the CN receives the RELOCATION REQUEST ACKNOWLEDGE message, the CN assembles the HANDOVER TO UTRAN COMMAND message carrying the HS-SCCH less information sent by the RNC into the RELOCATION COMMAND message, and then sends the RELOCATION COMMAND message to the BSC;

505. After receiving the RELOCATION COMMAND, the BSC obtains a HANDOVER TO UTRAN COMMAND message carrying the HS-SCCH less information, and sends the message to the UE.

506. After receiving the HANDOVER TO UTRAN COMMAND message carrying the HS-SCCH less information, the UE performs corresponding configuration according to the content in the HANDOVER TO UTRAN COMMAND message. The corresponding configuration includes: the UE switches from the 2G system to the 3G system. , start HS-SCCH Less Operation function; UE sends HANDOVER TO UTRAN COMPLETE (cut into the terrestrial radio access network of the universal mobile communication system) message informs the RNC that the configuration is complete;

507. After the RNC receives the HANDOVER TO UTRAN COMPLETE message carrying the HS-SCCH less Information, the RNC notifies the CN by using a RELOCATION COMPLETE message, and the UE completes the handover.

It should be noted that the method and the device for cutting into the HS-SCCH Less Operation system are not limited to the UE moving from the 2G network system to the 3G network system embodiment, but also applicable to the UE migration into the 3G network system under other network systems, for example. : LTE (Long Term Evolution) The UE under the network system migrates into the 3G network system.

The handover method and device provided by the embodiment of the present invention, according to the mobile terminal UE capability information acquired by the radio network controller and the target system capability information of the handover, the method for determining whether the mobile terminal and the target system cut by the different system support the HS- The SCCH Less Operation function, if it can support the HS-SCCH Less Operation function, delivers a different system handover command message carrying the information of reducing the high-speed physical downlink shared control channel, and starts the HS-SCCH Less Operation function between the target system and the mobile terminal. Therefore, when the mobile user needs to communicate with the target system, the newly transmitted service data does not need the HS-SCCH (High Speed Physical Downlink Shared Control Channel) to indicate the data transmission format, only when the retransmission service is performed. When the data is used, the transmission format of the retransmitted data is indicated by the HS-SCCH, which greatly reduces the amount of data transmitted, and the capacity of the target system is also reduced accordingly, thereby enabling the target system to access more users and increase the system capacity. .

Through the description of the above embodiments, those skilled in the art can understand that all or part of the steps of the foregoing embodiment can be implemented by a program to instruct related hardware, and the program can be stored in a computer readable manner. In the storage medium, when the program is executed, the method includes the steps of the foregoing method embodiment, such as: ROM/RAM, magnetic disk, optical disk, and the like.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily within the technical scope disclosed by the present invention. Any changes or substitutions are contemplated as being within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Claim

A switching method, comprising:

If it is determined that the mobile terminal UE and the target system of the handover support the operation function of reducing the high-speed physical downlink shared control channel according to the obtained mobile terminal UE capability information and the target system capability information of the handover, the downlink carrying is reduced. A high-speed physical downlink shared system switching command message sharing control channel information.

2. The handover method according to claim 1, wherein the transmitting the heterogeneous system handover command message carrying the operation information of the high-speed physical downlink shared control channel, comprising:

A migration request confirmation message with the different system handover command message is delivered.

The handover method according to claim 1, wherein after the acquiring the capability information of the mobile terminal UE and the target system capability information of the handover, the method further includes:

Determining, according to the mobile terminal UE capability information and the target system capability information of the handover, that the mobile terminal service is established on a high speed packet access HSPA transport bearer; and according to the mobile terminal UE capability information and a target system for the handover The capability information determines whether the mobile terminal UE and its switched target system support reducing the high speed physical downlink shared control channel operation function.

The handover method according to claim 1, wherein after the sending the different system handover command message that reduces the high-speed physical downlink shared control channel information, the method further includes:

And according to the different system handover command message, starting to reduce the high-speed physical downlink shared control channel operation function.

5. A switching device, comprising:

The capability judging unit is configured to determine, according to the mobile terminal UE capability information acquired by the information acquiring unit and the target system capability information of the handover, whether the UE and its switched target system support reducing the high-speed physical downlink shared control channel operation function; The information sending unit is configured to: if the capability determining unit determines that the mobile terminal UE and the target system of the handover support the operation function of reducing the high-speed physical downlink shared control channel, the sending the information carrying the reduced high-speed physical downlink shared control channel information System switch command message.

The switching device according to claim 5, wherein the information transmitting unit is configured to release a migration request confirmation message in which the different system switching command message is assembled.

The switching device according to claim 5, further comprising a bearer determining unit, wherein the bearer determining unit is configured to determine the mobile according to the mobile terminal UE capability information and the target system capability information of the handover Whether the terminal service is established on the high speed packet access HSPA transport bearer, and if it is determined that the mobile terminal service is established on the high speed packet access HSPA transport bearer, notifying the capability determining unit;

The capability judging unit is further configured to: when receiving the notification that the mobile terminal service sent by the bearer determining unit is established on a high-speed packet access HSPA transport bearer, determine whether the UE and its switched target system support reduction High-speed physical downlink shared control channel operation functions.

The switching device according to claim 5, further comprising:

The function starting unit is configured to start to reduce the high-speed physical downlink shared control channel operation function according to the different system switching command message.