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Method for adjusting soft-switch proportion

A proportional adjustment and soft handover technology, applied in the direction of electrical components, radio/inductive link selection arrangements, selection devices, etc., can solve the problems of increasing resource consumption, reducing resources, and not considering the consumption of community resources, etc., to achieve increased softness The effects of switching ratios, reducing resource usage, and improving utilization

Inactive Publication Date: 2009-05-27
HUAWEI TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0028] From the above analysis, it can be seen that the size of the handover ratio will affect the call drop rate index, but it will also affect power resources, Iub transmission resources, code resources and processor resources
A large soft handover ratio can reduce the call drop rate and improve call quality, but it will also increase resource consumption. A small soft handoff ratio will increase the call drop rate, but will reduce resource consumption.
[0029] Since the handover parameters in the prior art are set for the cell without considering the resource consumption of the cell, when the resource consumption of the cell is relatively low, the benefits brought by soft handover are not fully utilized; when the resource consumption of the cell is relatively high, Cannot sacrifice soft handover ratio in exchange for resource utilization; that is, there is no optimal trade-off between quality and capacity

Method used

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  • Method for adjusting soft-switch proportion
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  • Method for adjusting soft-switch proportion

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Embodiment Construction

[0048] The core idea of ​​the present invention is to adjust the soft handover ratio according to the resource occupation of the cell, thereby solving the balance problem between user call quality and capacity.

[0049] The resources of the cell include power resources, Iub transmission resources, code resources and processor resources. When any of the above resource occupations of the cell exceeds the specified threshold, the soft handover ratio is reduced; when the resource occupation is smaller than the specified threshold, the soft handover ratio is increased.

[0050] The soft handover ratio is related to the following four parameters: report range, hysteresis, trigger time and cell independent bias. Generally speaking, hysteresis and trigger time are used to overcome signal fluctuations and reduce ping-pong switching. It is not recommended to adjust these two parameters to control the soft switching ratio. In this embodiment, the adjustment of the soft handover ratio is...

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Abstract

The method comprises: when the occupation of cell resources is over the upper threshold, the parameters of soft switch is adjusted to reduce the ratio of soft switch in order to reduce the occupation rate brought by soft switch; when the occupation of cell resources is lower than the bottom threshold, the parameters of soft switch is adjusted to increase the ratio of soft switch in order to improve the session quality.

Description

technical field [0001] The invention relates to a mobile communication network, in particular to a soft handover ratio adjustment method under different cell loads in a WCDMA network. Background technique [0002] Handover is the most important component in mobility management. In the cellular system, due to the continuous movement of the UE, the UE crosses the area, so it is necessary to "handover" the UE's connection from the original cell where the UE is located to the new cell that the UE enters, and update the location information of the UE and use H. [0003] The so-called soft handover means that when the mobile station needs to communicate with a new base station, it does not interrupt the connection with the original base station first. However, the previous systems all performed hard handoffs, that is, they first interrupted the connection with the original base station, and then contacted the new base station within a specified time. Soft handover can only be p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04Q7/32H04W36/00H04W36/18
Inventor 蔡建永
Owner HUAWEI TECH CO LTD