WO2010012228A1

WO2010012228A1 - Method and device for switching

Info

Publication number: WO2010012228A1
Application number: PCT/CN2009/072986
Authority: WO
Inventors: 沈志超
Original assignee: 华为技术有限公司
Priority date: 2008-07-30
Filing date: 2009-07-30
Publication date: 2010-02-04
Also published as: CN101640915A

Abstract

A method and a device for switching that can be used in the technical field of mobile communication are provided. The method involves that obtaining capability information of user equipment (UE) and capability information of switched target system (101); if it is determined that the UE and the switched target system support the multi input multi output (MIMO) function according to the obtained capability information of UE and the obtained capability information of the switched target system, transmitting different system switching command message with MIMO parameter information (102). The invention can be used to increase system capacity, and resolve the current problem that when the different system is switched to the 3G system which supports the MIMO function, the UE can only be built on the high speed downlink packet access (HSDPA) transmission load supporting of the physical layer by the 3G system, and the MIMO function of the MIMO system can not be used sufficiently.

Description

Switching method and device

This application claims priority to Chinese Patent Application No. 200810135116.0, entitled "A Method and Apparatus for Switching into a System That Supports Multiple Input Multiple Output Technology", filed on July 30, 2008. The content is 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 switching to a system supporting multiple input multiple output functions.

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, 2nd generation). Mobile communication) The BSC (Base Station Controller) in the system only manages radio resources and terrestrial resources. The 3G system also involves high-speed network call admission control algorithms related to QoS (Quality of Service). Negotiation of network resources between the user and the core network; completion of monitoring of switching of the lu interface, and the like. The 3G system can provide services for more high-speed users on the same radio 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 the mobile terminal UE supporting the MIMO (Multi Input Multi Output) is switched from the 2G system to the 3G system, the base station console BSC sends a RELOCATION REQUIRED message to the CN (Core Network). The message carries the information about the target cell and the UE; the CN then sends the RELOCATION REQUEST to the RNC; the RNC determines whether the UE can be based on the information about the UE carried in the RELOCATION REQUEST message and its own situation. Access; When the RNC can send a UE message to the CN, the UE is switched 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 MIMO function is switched into a 3G system supporting MIMO function, the 3G system can only establish the mobile terminal at the physical layer. The HSDPA transmission bearer cannot fully utilize the MIMO function supporting the MIMO system.

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 multi-input and multi-output functions according to the acquired mobile terminal UE capability information and the target system capability information of the handover, the multi-input and multi-output parameters are carried A different system switch command message for information.

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 UE terminal capability information acquired by the information acquiring unit and the target system capability information of the handover, whether the UE and the target system to be switched support the multi-input and multi-output function;

The information sending unit is configured to: if the capability determining unit determines that the mobile terminal UE and the switched target system support the multiple input multiple output function, send a different system switching command message carrying the multiple input multiple output parameter information.

The method and device for switching to support a multiple input multiple output function system provided by the embodiment of the present invention, according to the obtained mobile terminal UE capability information and the target system capability information of the handover, the mobile terminal and the target system cut by the different system are determined. Whether the multi-input and multi-output functions are supported, if both the mobile terminal and the target system can support the multi-input and multi-output functions, the inter-system handover command message carrying the MIMO parameters information of the multi-input and multi-output parameters is sent, between the target system and the mobile terminal. The MIMO function is enabled, so that when the mobile user needs to communicate with the target system, the air interface spectrum utilization rate of the system and the number of downlink peaks are increased, thereby increasing the target system capacity and increasing the data transmission rate.

DRAWINGS

FIG. 1 is a flowchart of a method for switching to a system supporting multiple input multiple output according to an embodiment of the present invention;

FIG. 2 is a flowchart of another method for switching to a system supporting multiple input multiple output according to an embodiment of the present invention; FIG.

FIG. 3 is a schematic structural diagram of a device for switching to a system supporting multiple input multiple output according to an embodiment of the present invention; FIG.

FIG. 4 is a schematic structural diagram of another apparatus for switching to a system supporting multiple input multiple output according to an embodiment of the present disclosure;

FIG. 5 is a flowchart of a method for switching to a system supporting multiple input multiple output functions according to an embodiment of the present invention.

detailed description

The method and apparatus for switching to a multi-input multi-output function 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 to a multi-input and multi-output function 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: Obtaining UE capability information of the mobile terminal and target system capability information of the handover, for example, may be acquired by a controller of the target system;

102: If it is determined that the mobile terminal UE and the target system of the handover support the multiple input multiple output function according to the obtained mobile terminal UE capability information and the target system capability information of the handover, the multiple carries multiple inputs Outputting a different system switching command message of the parameter information, for example, the multiple input multiple output parameter information may be parameter information required to perform a multiple input multiple output function, and may be carried in a multiple input multiple output of the different system switching command message In the parameter cell, the invention The description of the multiple input multiple output parameter information mentioned in the embodiment is applicable to all embodiments of the present invention, and details are not described herein.

As shown in FIG. 2, another method for switching to a system supporting a multiple input multiple output function is provided in the embodiment of the present invention. In the process of implementing the embodiment of the present invention, the method 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 downlink packet access HSDPA 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 multiple input and multiple output functions. Of course, it may also first determine whether multiple input multiple output functions are supported, and then determine whether to establish high speed downlink packet access. HSDPA transport bearers, or they can be performed simultaneously. The embodiment of the present invention does not limit the above implementation order. When the mobile terminal service is established on the high speed downlink packet access HSDPA transmission bearer, if the mobile terminal UE and its switched target system support the multiple input multiple output function, step 203 is performed;

203: If it is determined that the mobile terminal UE and the target system of the handover support the multiple input multiple output function according to the acquired mobile terminal UE capability information and the target system capability information of the handover, the multiple carries multiple inputs A different system switching command message that outputs parameter 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 MIMO parameters information of the multiple input and multiple output parameters may be assembled into the RELOCATION REQUEST ACKNOWLEDGE message. Send it. For example, as shown in Table 1 below, it is a list of cells included in the HANDOVER TO UTRAN COMMAND message, where the MIMO parameters information is a newly added optional cell, and includes multiple input and multiple output parameter information; wherein, MP represents that the cell is Mandatory, it should always appear in the signaling; OP means that the cell is optional, ie it may or may not appear in the signaling, regardless of the existence or value of other cells in the same signaling. ; Information Need Multi Type and Semantics Version

Element/Group (Fan reference description (version) name) (type and cable (meaning

(cell, group name) cited)

MIMO parameters OP MIMO REL-7 parameters

10.3.6.41a

204: According to the different system handover command message, the mobile terminal UE and the system supporting the MIMO function start the MIMO function.

As shown in FIG. 3, an apparatus for switching to a multi-input and multi-output function system is provided in 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 the multiple input multiple output function;

The information sending unit 303 is configured to: if the capability determining unit determines that the mobile terminal UE and the target system of the switching thereof support the multiple input multiple output function, send a different system switching command message carrying the multiple input multiple output parameter information.

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 apparatus for switching to a system supporting a multiple input multiple output function is provided by the embodiment of the present invention; the apparatus 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 downlink packet access HSDPA transport bearer, if the mobile station is determined to be The terminal service is established on the high speed downlink packet access HSDPA transmission bearer, and the capability determining unit is notified;

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 the multiple input multiple output function; When receiving the notification that the mobile terminal service sent by the bearer determining unit is established on the high speed downlink packet access HSDPA transmission bearer, it is determined whether the UE and its switched target system support the multiple input multiple output function.

The information sending unit 404 is configured to: if the mobile terminal UE and the target system of the handover support the multi-input multi-output function, send a different system handover command message carrying the MIMO parameters information.

The function starting unit 405 is configured to start the multiple input multiple output function by the mobile terminal UE and the target system supporting the multiple input multiple output function according to the different system switching command message. The function activation unit is optional.

As shown in FIG. 5, a flowchart of a method for switching to a multi-input and multi-output function system is provided in the embodiment of the present invention; the specific steps are as follows:

501. The base station console BSC sends a RELOCATION REQUIRED message to the CN (Core Network). The BSC sends a RELOCATION REQUIRED message to the core network to send a relocation request. The message carries the 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 RNC 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 itself can support the MIMO function. And the UE supports the MIMO function, and the HANDOVER TO UTRAN COMMAND carrying the MIMO parameters information is assembled to the RELOCATION REQUEST ACKNOWLEDGE (migration request acknowledgement) message and sent to the CN;

504. After receiving the RELOCATION REQUEST ACKNOWLEDGE message, the CN extracts the HANDOVER TO UTRAN COMMAND message sent by the RNC and carries the MIMO parameters information, and assembles the message into the RELOCATION COMMAND message, and then sets the RELOCATION COMMAND message. The message is sent to the BSC;

505. After receiving the RELOCATION COMMAND, the BSC obtains a HANDOVER TO UTRAN COMMAND message carrying the MIMO parameters of the cell, and sends the message to the UE.

506. After receiving the HANDOVER TO UTRAN COMMAND message carrying the MIMO parameter 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, and starts. MIMO function; the UE informs the RNC that the configuration is completed by sending a HANDOVER TO UTRAN COMPLETE message (completed to the terrestrial radio access network of the universal mobile communication system);

507. After the RNC receives the HANDOVER TO UTRAN COMPLETE message, the RNC notifies the CN through the RELOCATION COMPLETE message, and the UE completes the handover.

It should be noted that the handover method and device for supporting the multiple input multiple output function system described above are not limited to the UE migration from the 2G network system to the 3G network system embodiment, and are also applicable to the UE migration into the 3G network under other network systems. The system, for example: LTE (Long Term Evolution), the UE under the network system migrates into the 3G network system.

The handover method and device for supporting the multiple input multiple output function system provided by the embodiment of the present invention, the mobile terminal UE capability information acquired by the present invention and the target system capability information of the handover thereof are used to determine the target system of the mobile terminal and its different system cut-in Whether multi-input and multi-output functions are supported. If both the mobile terminal and the target system can support multiple input and multiple output functions, the MIMO is carried. The different system switching command message of the parameter information starts the MIMO function between the target system and the mobile terminal, so that when the mobile user needs to communicate with the target system, the air interface spectrum utilization rate of the system and the number of downlink peaks are increased, thereby making the target system Increased capacity and increased data transfer rate.

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 the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of protection 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 multiple input multiple output function according to the obtained mobile terminal UE capability information and the target system capability information of the handover, the delivery carries multiple input and multiple output parameters A different system switch command message for information.

The handover method according to claim 1, wherein the transmitting the different system handover command message carrying the multi-input and multi-output parameter information includes:

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 downlink packet access HSDPA transmission bearer, according to the mobile terminal UE capability information and a handover target thereof The system capability information determines whether the mobile terminal UE and its switched target system support multiple input multiple output functions.

The switching method according to claim 1, wherein after the sending the different system switching command message carrying the multi-input and multi-output parameter information, the method further includes:

The multiple input multiple output function is activated according to the different system switching command message.

5. A switching device, comprising:

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 multi-input and multi-output function, send the difference that carries the multiple input and multiple output parameter 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; the bearer determining unit: 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 the high speed downlink packet access HSDPA transmission bearer, and if it is determined that the mobile terminal service is established on the high speed downlink packet access HSDPA transmission 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 downlink packet access HSDPA transport bearer, determine whether the UE and its switched target system support Multiple input and multiple output functions.

The switching device according to claim 5, further comprising:

Function start unit: for starting multi-input and multi-output work according to the different system switching command message

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