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Title:
加入者選択的でエリア・ベースのサービス制御
Document Type and Number:
Japanese Patent JP2011509026
Kind Code:
A
Abstract:
A method for use in controlling a mobile device's access to one or more wireless communications networks (WCNs) with an overlaid wireless location system (WLS) includes monitoring a set of one or more predefined signaling links of at least one WCN, and detecting an event associated with the mobile device. Next, using a low-accuracy location function of the WLS, the system determines that the mobile device is within a defined area of interest and is potentially within a defined quiet zone. Next, using a high-accuracy location function of the WLS, the system determines a precise geographic location of the mobile device and based thereon confirms that the mobile device is within the quiet zone or at least within an area of ambiguity around the quiet zone. Finally, the mobile device's access to the wireless communications network is limited, e.g., according to a pre-defined rule established by the carrier. This approach allows finer definition of the fenced area while also minimizing the load on the high-accuracy location function. The proximity threshold is preferably based on the accuracy of the underlying location technology.

Inventors:
Bull, Jeffrey Ef
Ward, Matthew El
Application Number:
JP2010540739A
Publication Date:
March 17, 2011
Filing Date:
December 10, 2008
Export Citation:
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Assignee:
True Position Incorporated
International Classes:
H04W48/04; H04W4/021; H04W64/00
Domestic Patent References:
JP2004046666A2004-02-12
Foreign References:
WO2006135542A22006-12-21
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Motoharu Nakanishi