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User equipment switching method in long-term evolvement network and system thereof

A long-term evolution network and user equipment technology, applied in the field of user equipment switching technology, can solve problems such as occupation, inconvenient data flow synchronization, and extremely high NodeB cache requirements

Active Publication Date: 2009-06-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

[0014] In practical applications, the above solution has the following problems: the existing handover process occupies more wireless resources, has extremely high requirements for NodeB cache, and is not convenient for data flow synchronization
And after the handover is completed, the source NodeB must forward all the user data and the timer expires before releasing its wireless resources, which occupies more wireless resources

Method used

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  • User equipment switching method in long-term evolvement network and system thereof
  • User equipment switching method in long-term evolvement network and system thereof
  • User equipment switching method in long-term evolvement network and system thereof

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] The core of the present invention is that when the UE moves from one cell to another and needs to be handed over, it sends context information to its target NodeB, and after receiving the context information, the target NodeB sends a context confirmation message to the access gateway, and the access gateway receives the context information. After receiving the context confirmation message, stop sending user data to the source NodeB, instead cache the user data that needs to be sent in the access gateway, and send the cached user data after the UE establishes a wireless link with the target NodeB To the target NodeB, the target NodeB forwards the cached user data to the UE through the wireless link completed by the connection, and then, when the handover is c...

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Abstract

The disclosed UE switch method in LTE network comprises: when receiving the context verification message of target NodeB, the access gateway stops transmitting data to the NodeB and buffer data into the gateway; after NodeB completes the wireless link connection with UE, the gateway uses the temporary channel or through source NodeB to send buffer data to the target NodeB, and the latter sends the user data to UE through wireless link; after switch, the access gateway uses the switched new channel to send user data to the target NodeB, and the latter transmits the user data to the UE through the wireless link. This invention reduces request on data buffer for source NodeB.

Description

technical field [0001] The present invention relates to a long-term evolution network, in particular to a user equipment switching technology in the long-term evolution network. Background technique [0002] Since the mobile communication technology entered the second generation of mobile communication (The Second Generation, "2G" for short) at the end of the 20th century, it has developed rapidly. However, with the increase in the number of users and the continuous improvement of the requirements for business types and performance, 2G gradually shows limitations in data transmission capabilities. Therefore, the third generation of mobile communication (The Third Generation, referred to as "3G") with stronger data transmission capability has entered a stage of rapid development, and the field of mobile communication is showing a trend of gradually transitioning from 2G to 3G. [0003] While the 3G system is gradually entering commercial use, the industry has already started...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/02H04W36/08
Inventor 于映辉
Owner HUAWEI TECH CO LTD
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