Accurately positioning method for personal hand-held telephone system user

A technology for accurate positioning and system users, which is applied in the field of precise positioning of personal handheld phone system users, can solve the problems of high cost, inability to satisfy users with high-precision positioning, and low positioning accuracy, and achieve the effect of low cost

Inactive Publication Date: 2005-02-16
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are currently two user positioning methods: one is to use GPS (Global Position System) positioning, which can accurately locate the position of mobile users, but it requires communication satellites and special GPS terminals, which is expensive and not suitable for ordinary users ;
[0004] The other is the single base station positioning method of the PHS system. Please refer to the Chinese patent application number 02137333 published

Method used

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  • Accurately positioning method for personal hand-held telephone system user
  • Accurately positioning method for personal hand-held telephone system user

Examples

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Embodiment Construction

[0011] Please refer to figure 1 , is a schematic diagram of a PHS system embodiment of a PHS system user's precise positioning method according to the present invention. The PHS system includes a public telephone network, a PHS system access gateway connected to it, a network management connected to the PHS system access gateway, and a PHS system No. 1 and 2 base station controllers connected under the access gateway, No. 1, 2 and 3 base stations connected under No. 1 base station controller, No. 4 and No. 5 base stations connected under No. 2 base station controller. Wherein the network management in the PHS system saves the precise geographic location data of all base stations, and the geographic location can be indexed by the unique identifier of each base station. In this embodiment, the PHS mobile phone user A is within the range of No. 1 base station.

[0012] Because the mobile phone used in the wireless local telephone system has no power control, the signal strength ...

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Abstract

The method for accurate positioning users in PHS system includes steps: network management through access gateway sends request for positioning user to base station controller under call region where the user current belongs to; the controller sends seeking positioning request to own base stations; base stations seek the user; the user sends request for building link to a base station; the base station reports associated position information and signal intensity of the user to network supervisor, and sends message of refusing building link to the user; the user determines whether number of refusing the said request reaches to threshold; if yes, based on information received from multiple base stations, the network supervisor calculates out user's position; otherwise, seeking other base stations to carry out steps of request for building link again. The invention realizes positioning users in PHS system in low cost and high precision.

Description

technical field [0001] The invention relates to a positioning method in a mobile communication system, in particular to a positioning method for a PHS (Personal Handyphone System, Personal Handyphone System) user. Background technique [0002] At present, the total number of wireless local phone users in China has exceeded 30 million and will continue to grow. In order to improve the communication level and quality of life of the majority of users, in addition to providing the basic services of voice calls, the provision of value-added services, such as short messages, videophones, and data services, is becoming increasingly important. Among them, a large class of new services (telecom value-added services) are related to determining the current location of the user, such as: family monitoring service: when the elderly or children go out, the parents can regularly receive the other party's current location information sent by the wireless local telephone system; When you ge...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W88/18
Inventor 单德悦张志黎云华彭江萍
Owner ZTE CORP
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