Method and apparatus for adjacent domain scanning

A technology of neighboring cells and scanning times, applied in access restriction, electrical components, wireless communication, etc., can solve the problem that the scanning parameters cannot be reasonably determined, and achieve the effect of avoiding resource waste

Inactive Publication Date: 2009-08-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a method and device for scanning adjacent areas, so as to solve the problem that scanning parameters cannot be reasonably determined in the prior art

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  • Method and apparatus for adjacent domain scanning
  • Method and apparatus for adjacent domain scanning
  • Method and apparatus for adjacent domain scanning

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Embodiment Construction

[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] see figure 1 The method for performing neighboring cell scanning provided by the embodiment of the present invention includes the following steps:

[0040] S101: Calculating the maximum time T1 to allow interruption to ensure the quality of service, and the minimum time T2 required to scan all neighboring cells;

[0041] Since the current service flows (such as voice service EF, video service AF, data transmission service BE, etc.) The maximum interruption time a service flow can tolerate. That is to say, the maximum time T1 for ensuring service quality to be interrupted is the longest scanning time that can be performed by the scanning terminal to ensure that the current service flows do not affect the service quality du...

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Abstract

The invention discloses a method for scanning adjacent regions, which comprises the following steps: calculating the maximum time T1 interrupted allowably for guaranteeing service quality, and the minimum time T2 required by scanning all adjacent regions; comparing the T1 and T2, determining the T2 as scanning duration if the T1 is more than or equal to the T2; otherwise, comparing the T1 and the minimum time T3 required by scanning an adjacent region, and determining the T1 as the scanning duration if the T1 is more than or equal to the T3; and scanning the adjacent regions according to the determined scanning duration. The invention also discloses a device for scanning the adjacent regions. The method and the device make the scanning duration have a reasonable value, ensure not to influence normal communication when cells are scanned, avoid the problem of resource waste caused by too long scanning duration, and also ensure that at least one adjacent region can be scanned in the scanning duration so as to avoid the problem that a reasonable cell cannot be selected.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for scanning adjacent cells. Background technique [0002] Handover is an important function to support mobility management in wireless communication. When a terminal moves from a cell covered by a base station to another cell, the signal strength of the source cell gradually decreases due to distance or other reasons, and the signal strength of the target cell will gradually increase. The process of changing a terminal to a better target cell in order to obtain better signal quality and also to ensure service continuity. [0003] Scanning is the preparatory work before handover, and provides decision-making for selecting a target cell among multiple adjacent cells during handover. After the scan starts, there will be two results. One is that as the received signal quality of the SBS of the current serving cell is getting worse and worse, while the signa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/18H04W48/16
Inventor 姜少云
Owner HUAWEI TECH CO LTD
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