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Hierarchical cell reselection method in the mobile communication network

A mobile communication network, cell reselection technology, applied in wireless communication, selection device, radio/inductive link selection arrangement, etc., can solve the problems of high frequency of reselection, high frequency of cell reselection, low performance, etc. To achieve the effect of reducing the size of the data volume

Active Publication Date: 2009-05-13
HUAWEI TECH CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0012] In practical applications, the above solution has the following problems: the estimation of the UE's motion speed is not accurate, the frequency of reselection is high, and the reselection of cells at different levels cannot be quickly realized
[0013] The main reason for this situation is that, because the number of reselections is relative to the HCS cell of a certain level, the obtained motion state of the UE is only instructive in the cell of the specific level, and therefore, only in multiple times Cell reselection at different levels can only be achieved after reselection at the same level, and the performance is low
[0014] Because it is impossible to quickly reselect cells across layers, when serving UEs that start quickly and maintain ultra-high-speed movement, the frequency of cell reselection for UEs is still high

Method used

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  • Hierarchical cell reselection method in the mobile communication network
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  • Hierarchical cell reselection method in the mobile communication network

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Embodiment Construction

[0047] 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.

[0048] The System Information Broadcast ("SIB" for short) of each cell includes an HCS indication of whether to support hierarchical cells and the priority of the hierarchical cells (HCS priority, that is, the hierarchy of the cell).

[0049] The UE receives the broadcast of the current cell, obtains the HCS indication of the current cell and the priority of the layered cell, and obtains the radius and upper limit of the speed of the current cell and a cell with a larger coverage overlapping with the current cell. In fact, what should be broadcast is the average traversing distance of the UE traversing the cell under various routes, but according to experience, the average traversing distance is generally similar to the radius of the cell.

[0050] The moving spee...

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Abstract

This invention discloses one mobile communication network layer area overlap method, which comprises the following steps: each area broadcasts area and local area higher layer speed limit and UE passes self current area speed and each area speed limit to select proper area stay; the area also broadcasts local area and higher layer area pass distance to compute UE pass speed with two times of repeat time as pass time and dividing the distance by pass time to get pass speed.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a layered cell reselection method in a mobile communication network. Background technique [0002] With the development of high technology marked by communication technology and computer technology, people's lives have undergone tremendous changes with each passing day, and the information transmission between people is getting closer and more diverse. The development of cellular mobile communication has brought great convenience to users. At present, its development has gone through three generations. They are the first generation based on Frequency Division Multiple Access (FDMA) technology in the early 1980s. Analog mobile communication systems, the second-generation digital cellular mobile communication systems based on Time Division Multiple Access (TDMA) technology in the early 1990s, and the current new generation of mobile and personal communication systems, namely The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/32H04Q7/38H04W36/04H04W36/30
Inventor 胡灏
Owner HUAWEI TECH CO LTD
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