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Method for change-over between long distance and short distance radio mobile terminal

A technology of mobile terminal and implementation method, which is applied in the direction of wireless communication, radio/inductive link selection and arrangement, electrical components, etc., which can solve the problems of client switching oscillation, mobile terminal and network server unusable, etc., so as to avoid switching oscillation Effect

Inactive Publication Date: 2007-01-03
LENOVO (BEIJING) LTD
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Problems solved by technology

The advantage of using a single threshold for switching is that the software design is relatively simple, but its biggest disadvantage is: if the user moves at the edge of the WLAN coverage area, it may cause the client to continuously switch between WLAN and non-WLAN networks, Cause switching oscillation on the client side, if the switching frequency is too frequent, it will cause the mobile terminal and the network server to be unusable

Method used

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  • Method for change-over between long distance and short distance radio mobile terminal
  • Method for change-over between long distance and short distance radio mobile terminal
  • Method for change-over between long distance and short distance radio mobile terminal

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Embodiment Construction

[0023] In a wireless long-short-distance communication system, when a mobile terminal enters a short-distance network from a long-distance network or enters a long-distance network from a short-distance network, or enters another short-distance cell from a short-distance cell, the mobile terminal must constantly detect the The signal strength of the network, when the detected signal strength is large enough, the mobile terminal will initiate a handover. In order to avoid handover oscillation when the mobile terminal equipment is handovered in the edge area of ​​short-distance network coverage, this technology sets the handover threshold as a double threshold + time threshold.

[0024] Such as figure 2 As shown, the double threshold at the time of switching means that the access detection threshold and the exit threshold are two different values, and the signal strength of the access detection threshold is greater than the signal strength of the exit threshold, so that the acc...

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Abstract

The method for change-over between long distance and short distance radio mobile terminal is one kind of decision method including double terminal access and change-over threshold plus time threshold, that is, the access threshold and exit threshold are in different values and the change-over must meet the time threshold requirement. The whole change-over process includes three steps of monitoring, judgment and change-over. The change-over includes the change-over of mobile terminal from short distance communication to long distance communication and the change-over of mobile terminal from long distance communication to short distance communication as well as change-over between subzones of different short distances. The technology of the present invention realizes the seamless change-over without vibration produced.

Description

technical field [0001] The invention relates to a wireless communication technology, in particular to a method for realizing switching between wireless long-distance and short-distance mobile terminals, and belongs to the field of mobile communication. Background technique [0002] In the wireless long-short-distance communication system, the system requires that the terminal equipment in the system coverage not only maintain communication with the long-distance network, but also automatically switch to the short-distance wireless LAN when the terminal enters the coverage of the short-distance wireless LAN. The mobile terminal is required to continuously measure the signal strength of the serving cell and the adjacent cell, and the measurement result will be used as the basis for handover decision. [0003] The wireless long-short-distance communication system guarantees at the same time: terminals in both long-distance coverage and short-distance coverage can be identified ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/20H04W36/00
Inventor 孙国滨谢巍
Owner LENOVO (BEIJING) LTD
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