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Switching-over method

A judgment and measurement report technology, applied in electrical components, wireless communication, etc., can solve problems such as call drop, interference, and unsuccessful cell cut-in, so as to ensure normal operation and improve the success rate

Active Publication Date: 2006-10-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the asymmetry of interference, the downlink signal is intact, but the uplink signal is poor, which will also lead to call drop and cell cut-in failure when using the existing handover technology

Method used

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the following examples are listed to further describe the present invention in detail.

[0031] The core idea of ​​the present invention is: in the basic process of handover, not only according to the downlink pilot signal quality reported by the user terminal measurement, but also considering the external interference of the handover target cell, according to the size of the external interference value and The set interference threshold is used to make a handover decision and complete the handover process.

[0032] The method proposed by the invention can be applied in various mobile communication systems, such as WCDMA, Universal Mobile Telecommunications System (UMTS), GSM, and CDMA. Now take the implementation of the handover method proposed by the present invention in a WCDMA system as an example for illustration, and this handover method is a soft handover method. The...

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PUM

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Abstract

The method includes steps: (1) under control of network side, user terminal accomplishes measurement of signal intensities of adjacent cells, and sends measured report to radio network controller (RNC); (2) obtaining external interference value of candidate set of cell; (3) based on received type from measured report, comparison between external interference value and interference threshold, RNC executes switching judgment, and accomplishes switching if it is needed. When external interference in destination cell is heavy, the invention sets up lower priority for down going switching for destination cell so as to raise switching success ratio, and guarantee normal operation of network.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a switching method. Background technique [0002] In a cellular mobile communication system, when a user moves from one coverage area to another, the network side still needs to provide continuous services for the user. At this time, it is necessary to switch the user between different cells. Reasonable switching can maintain the continuity of user calls, and at the same time, it can maximize the use of wireless resources and provide services to the largest number of users. [0003] Handover is divided into soft handover and hard handover. Soft handover is a process in which a user terminal always maintains a radio link with the radio access network when a radio link is added or released. The advantage of soft switching is that there is no link interruption, which can bring better voice quality. Hard handover means that during the handover process, before the user terminal co...

Claims

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Application Information

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IPC IPC(8): H04W24/10H04W36/18
Inventor 吕武
Owner HUAWEI TECH CO LTD
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