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A scrolling switching method of mobile station dominated mobile communication system based on MIMO technology

A mobile communication system and mobile station technology, applied in the field of rolling handover, can solve problems such as system capacity increase, achieve the effects of stable communication quality and lower handover failure rate

Active Publication Date: 2008-03-26
WUHAN HONGXIN TELECOMM TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] In a MIMO system, data is transmitted in channels in the form of a matrix rather than in a vector form, so in addition to the benefits of diversity and array gain, the MIMO system also brings about an increase in system capacity

Method used

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  • A scrolling switching method of mobile station dominated mobile communication system based on MIMO technology
  • A scrolling switching method of mobile station dominated mobile communication system based on MIMO technology
  • A scrolling switching method of mobile station dominated mobile communication system based on MIMO technology

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Embodiment Construction

[0059] The rolling handover method in UEActive mobile communication system utilizing MIMO technology of the present invention will be described in detail below with reference to the accompanying drawings.

[0060] Figure 4 shows the situation of the MIMO link before and after rolling handover. In Fig. 4, the link between UE and base station 1 represents the connection before the rolling handover, which is indicated by double dashed lines; the link between UE and base station 5 represents the connection after rolling handover, which is indicated by double dotted lines; UE and base station The links between 2, 3, and 4 remain unchanged before and after the rolling switch of the present invention, and are represented by double solid lines.

[0061] The rolling handover shown in Figure 4, the rolling handover caused by the decline in the quality of the uplink service channel includes the following specific steps:

[0062] Step 1, the mobile station UE monitors the SIR and BER of ...

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Abstract

The invention relates to a scroll switching method in the mobile station leading mobile communications system utilizing the MIMO technology. A mobile station establishes a activation link with a plurality of base stations, the MIMO transmission is established. In the moving course of the mobile station, the course of scroll switching happens continually, the good quality waiting chosen links replace the activation link with quality which is lower than the threshold quality. The scroll switching process has two advantages: first, the scroll switching judgement reference is the detected service channel quality, namely, the quality of the upgoing or the downgoing service channels with quality which is lower than the threshold quality firstly, the scroll switching can be triggered, the talking quality before the switching and the cell edge are effectively ensured; second, the scroll switching substitutes one of activation links, has a little effect to all service data rate during switching, even the scroll switching is failure, the user data service is not interrupted. The scroll switching is especially suitable for the service with a high data rate.

Description

technical field [0001] The invention relates to a handover method in a mobile communication system, in particular to a rolling handover method in a UEActive mobile communication system utilizing MIMO technology. Background technique [0002] In traditional mobile communication systems, the traditional handover method is that the UE detects the channel quality of the beacon channel of the source cell and the target cell, and starts the handover process when the quality of the beacon channel of the target cell is better than that of the source cell. However, the beacon channel and the traffic channel are often irrelevant, that is to say, the quality of the beacon channel cannot represent the quality of the traffic channel. Taking the quality of the beacon channel as the basis for judging the handover will result in a decrease in the communication quality at the cell edge and a decrease in the success rate of the handover. [0003] The core idea of ​​MIMO technology is the spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/02H04W24/08H04B7/08H04W36/08H04W36/18H04W74/08
Inventor 陈朝阳
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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