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

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Problems solved by technology

Therefore, due to the asymmetry of interference, the downlink signal is intact, but the uplink signal is p

Method used

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[0030] In order to make the objectives, technical solutions 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 the quality of the downlink pilot signal measured and reported by the user terminal is good or bad, but also the external interference situation of the handover target cell is taken into consideration, according to the magnitude of the external interference value and Set the interference threshold, make a handover decision, and complete the handover process.

[0032] The method provided by the present invention can be applied to a variety of mobile communication systems, such as WCDMA, Universal Mobile Telecommunication System (UMTS), GSM, CDMA. The handover method proposed in the present invention is implemented in a WCDMA system as an example for description. This handover method is a soft h...

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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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