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Method for judging handover in mobile communication system

A mobile communication system and handover technology, applied in the field of mobile communication systems, can solve problems such as the handover rate of user terminals that cannot be handed over, and achieve the effects of improving system capacity and service quality, reducing handover rate, and reducing call drop rate

Active Publication Date: 2007-04-18
SHANGHAI ULTIMATE POWER COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a handover judgment method in a mobile communication system to solve the technical defects in the prior art that the user terminal cannot be handed over to a cell that can provide better link conditions or the handover rate is high

Method used

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  • Method for judging handover in mobile communication system
  • Method for judging handover in mobile communication system
  • Method for judging handover in mobile communication system

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] A core idea of ​​the present invention is to calculate the path loss difference between the adjacent cell to be measured and the serving cell, and determine whether the user terminal performs handover and the handover target cell by the integral value of the path loss difference. Since the calculated integral value of the path loss difference has better smoothness, unnecessary cell switching can be filtered out, thereby reducing the switching rate, thereby improving system capacity and service quality.

[0033] Please refer to FIG. 2 , which is a flow chart of the handover decision method in the mobile communication system of the present invention. it includes:

[0034] S110: The network side sends a measurement control command for path loss measurement to the user terminal, specifying parameters to be measured by the user terminal.

[0035]After the wireles...

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Abstract

The invention is a handover determining method in mobile communication system, comprising: 1) network side sends link loss measurement control command to user terminal to appoint the parameters the user terminal needs to measure; 2) the user terminal receives the control common and measures, and reports the measured results in an event triggered mode or periodically, where the measured results include the preset number of larger link loss difference integration values or link loss difference integration values larger than first threshold value, selected from the adjacent cells which require measuring; 3) the network side selects a target cell of local terminal from the reported adjacent cells and switches terminal connected wireless link from service cell to target cell. And it can switch terminal a cell which can provide better link condition.

Description

technical field [0001] The present invention relates to mobile communication system technology, in particular to handover in the mobile communication system, especially to the judgment method of handover. Background technique [0002] In a mobile communication system, usually due to the movement of the communication terminal, the wireless link between the terminal and the base station needs to be handed over from one cell to another. The judgment criterion of handover is very important, it not only affects the performance of the wireless link, but also affects the performance of the whole communication network. A good handover criterion can reduce the call drop rate of the system while reducing the handover rate, and increase the capacity of the system. [0003] Traditional wireless communication networks generally judge whether the UE needs to perform handover according to the signal strength or signal quality measured by the user terminal (UE). Due to the complexity and ...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W36/18H04W36/30
Inventor 秦飞
Owner SHANGHAI ULTIMATE POWER COMM TECH
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