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Method of dynamic changing user location frequency in LBS

A technology that dynamically changes and locates the frequency, applied in electrical components, wireless communication and other directions, can solve the problem that the positioning interval cannot provide service quality, the delay cannot meet the service quality of LBS users, and the positioning interval is short, etc., to reduce system utilization. rate effect

Inactive Publication Date: 2006-06-28
CHONGQING UNIV OF POSTS & TELECOMM +1
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AI Technical Summary

Problems solved by technology

[0005] With the development of LBS applications, more and more users use LBS positioning. If the above-mentioned fixed positioning interval is still used to locate mobile users, the system will become more and more busy, and eventually cannot satisfy each LBS user due to too much delay. quality of service, and even cause the entire system to be paralyzed; for mobile user terminals, if the positioning interval is too long, it may not be able to provide users with satisfactory service quality, and if the positioning interval is too short, the battery power consumption will be too large
On the other hand, in some cases, it is not necessary to update the mobile user's location frequently, such as when there is no movement for a long time or when sleeping at night

Method used

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  • Method of dynamic changing user location frequency in LBS
  • Method of dynamic changing user location frequency in LBS
  • Method of dynamic changing user location frequency in LBS

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] The best way to record the path traveled by the user at equal density is to locate and record the location every time the user moves a certain distance. The faster the user moves, the higher the frequency of positioning, and the slower the speed. The lower the frequency, the specific distance is called the trigger positioning distance. Since different users may need different trigger location distances to meet their needs, the system defines a QoS about the trigger location distance for users to choose. For example, car users can choose a trigger location distance of 20 meters, while ship users may choose a trigger location distance of 100 meters.

[0017] The above method is the most ideal positioning method, but not every user can obtain their own moving distance continuously. Assuming that such users who cannot continuously obtain their own ...

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Abstract

This invention relates to a method and a system for asking to protect dynamically altering user location frequencies, which calls different algorithm modules combining with the movement state of a mobile user and the quality standard QoS demanded by the user to dynamically alter the location frequencies of the mobile user so that the historic trace recorded of the user is more accurate.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the cellular network wireless positioning service technology. Background technique [0002] Location-Based Services (LBS) is a rapidly developing field in recent years. LBS can not only be used for emergency calls and dynamic tracking, but also can be used for navigation, yellow page query, etc. [0003] An LBS system includes at least one positioning subsystem and a space-time database. The positioning subsystem is mainly responsible for locating mobile users and providing the system with accurate current location information of mobile users. Currently, the widely used positioning technology is Global Positioning System (GPS) , Enhanced Observation Time Difference (E-OTD), Time of Arrival (TOA) and Assisted GPS (A-GPS), etc. These positioning technologies all return the user's three-dimensional coordinates, and some positioning technologies also return information such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00
Inventor 罗跃峰夏英葛君伟彭大芹刘兆宏邹永贵金镐时裴海英
Owner CHONGQING UNIV OF POSTS & TELECOMM
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