Method for selecting scanning and association base station in Wimax system and base station switching method

A base station method, base station technology, applied in the direction of selection device, radio/inductive link selection arrangement, electrical components, etc., can solve the problems of not reducing the number of base station scans, the number of associations, and not solving overhead problems, etc.

Active Publication Date: 2008-03-19
LENOVO (BEIJING) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the above solution still does not describe in detail how to select the base station for handover, and does not reduce the nu

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  • Method for selecting scanning and association base station in Wimax system and base station switching method
  • Method for selecting scanning and association base station in Wimax system and base station switching method
  • Method for selecting scanning and association base station in Wimax system and base station switching method

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Embodiment Construction

[0037] In the method for selecting scanning and associating base stations and the switching method of base stations in the Wimax system of the present invention, a fan-shaped area is determined according to the moving direction and moving speed of the mobile terminal, and the mobile terminal is only located in the fan-shaped area and has sufficient signal strength. The base station performs scanning and association operations. At the same time, when performing base station switching, the mobile terminal only judges and selects the base stations that have performed scanning and association operations. Only when the base stations that have performed scanning and association operations do not meet the switching conditions , re-scan the neighboring base stations, and perform handover operations according to the scanning results.

[0038] The implementation of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] In ...

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Abstract

The invention discloses a method for selectively scanning and associating with base station in Wimax system and a base station shifting method, wherein the method for selectively scanning and associating base station includes step S1, the mobile terminal identifies a sector area according to its moving speed and direction, the angle taking the mobile terminal as starting point and formed by the angular bisector of the central angle formed by the radial pointing to the moving direction and the sector area is smaller than the preset value; step S2, the mobile terminal scans the base stations in the sector area whose signal strengths are larger than the preset value, or meanwhile conducts scanning and associating; step S3, the mobile terminal sorts the base stations to be scanned or scanned and associated according to preset parameters. The method provided by the invention effectively reduces the number of scanned and associated base stations, thus reducing cost and meanwhile associating the cycle of scanning and associating with speed, so that the costs caused by the reduction in signal and command while ensuring the effectiveness of the results of the last scanning and associating.

Description

technical field [0001] The invention relates to a wireless communication system, in particular to a scanning correlation method and a handover method of a base station in a Wimax (Worldwide Interoperability for Microwave Access, Worldwide Interoperability for Microwave Access) system. Background technique [0002] With the increase of people's demand for broadband wireless access, relevant standards such as IEEE 802.16e (Wimax) have been formulated, and related network standards are being formulated. [0003] Since Wimax supports user mobility, the operation of cell selection is included in the standard. However, the standard only defines steps such as channel scanning and handover of surrounding cells, but does not define the specific process, such as: how to determine the scanning cycle, how to determine the target cell for possible handover, and how to make a selection based on the scanning results, etc. [0004] According to the Wimax standard, the most direct cell sele...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04Q7/32H04W36/08H04W48/16
Inventor 马文超
Owner LENOVO (BEIJING) CO LTD
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