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Method for selecting target base station (BS) during switching and system thereof

A technology for selecting targets and targets, which is applied in the field of global microwave interconnection and access networks, can solve problems affecting the performance of the media plane, increase the number of lost packets, and delete them, so as to achieve the effect of improving the success rate and performance of the media plane, and improving the performance of the media plane

Active Publication Date: 2014-12-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to delays on the air interface and the network side, and after the MS rejects the handover, the serving MS needs to re-recommend the target BS and other factors, which may cause the finally selected target BS to delete the resources prepared for the MS
At this time, the MS will handover to a BS that has no resources prepared. This will reduce the handover success rate, and the handover will lead to longer data interruption time. This will increase the number of packet loss and affect the performance of the media plane.

Method used

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  • Method for selecting target base station (BS) during switching and system thereof
  • Method for selecting target base station (BS) during switching and system thereof
  • Method for selecting target base station (BS) during switching and system thereof

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Embodiment Construction

[0064] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0065] The method for selecting the target base station in the handover of the present invention, such as image 3 shown, including the following steps

[0066] Step 301: the candidate BS receives the resource request message from the serving BS, and after preparing resources for the MS, sends a response message including the duration of the resource reservation timer to the serving BS;

[0067] Specifically, the candidate BS may send the R6_HO_Rsp message carrying the duration of the resource reservation timer to the serving BS;

[0068] In the prior art, resource reservation timers have been configured on all BSs in advance.

[0069] Step 302: The serving BS saves the received resource reservation timer durations of all candidate BSs, and determines the target BS according to the resource reservation timer duration, resource usage...

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Abstract

A method for selecting a target base station during handover is provided by the present invention, which includes that a candidate Base Station (BS) receives a request message for resources from a serving BS, and sends a response message including length of a resource reservation timer to the serving BS after completing preparing resources for a Mobile Station (MS) (301); the serving BS stores the received lengths of resource reservation timers of all the candidate BSs, and determines the target BS according to the length of resource reservation timer of the candidate BS, resource utilization and signal quality (302). A system for selecting the target base station is also provided by the present invention. With application of the method and system provided by the present invention, success rate of handover and performance of media layer can be improved.

Description

technical field [0001] The present invention relates to the network technology of Worldwide Interoperability for Microwave Access (WIMAX, Worldwide Interoperability for Microwave Access), in particular to a method and system for selecting a target base station during handover. Background technique [0002] According to the WIMAX protocol, when the terminal (MS, Mobile Station) finds that the signal quality of the serving base station (BS, Base Station) has dropped to a threshold value, it can send a MOB-MSHO-REQ message to the serving BS to trigger handover, and the message carries a series of candidate BS and its signal quality. After receiving the MOB-MSHO-REQ message, the serving BS sends the R6-HO-REQ message to the candidate BS carried in the message, informing the candidate BS to prepare resources; the serving BS selects the BS that meets the handover conditions from the candidate BSs whose resource preparation is successful , recommended to MS. Among them, the speci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/08H04W36/24
CPCH04W36/0055H04W36/08H04W36/0058
Inventor 胡小兰
Owner ZTE CORP