Area Event Handling When Current Network Does Not Cover Target Area

a technology for area events and current networks, applied in the field of location services, can solve the problems of drained battery of mobile devices, high cost and complexity of gis systems, and inability to convert to a set of cell identifiers

Inactive Publication Date: 2014-05-15
TELECOMM SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enhances the efficiency of area event handling by minimizing network traffic and battery drain, ensuring timely event detection while supporting roaming scenarios and multiple network environments.

Problems solved by technology

Besides the fact that a GIS system is extremely expensive and complex, the size of a Cell Database has been expanding along with the development of the mobile communication technologies, e.g., in reverse proportion to cell sizes become smaller and smaller for better radio coverage.
When an area watching request includes a watched area specified in a geodetic shape, if the network directly sets up a triggered location service with a geodetic location shape due to no GIS system being available or the cell database doesn't contain complete coverage for the watched area (thus the conversion to a set of cell identifiers is not possible), the mobile has to perform positioning on a periodic basis to detect the area event (e.g. detecting if / when the mobile device enters the watched area).
But in this scenario, lots of network traffic is generated for a single area watching request, and as a result the battery of the mobile device may be drained more quickly caused by the need for more frequent positioning.
Moreover, the actual area watching event may be missed if the area event occurs within the time interval between positions.
However, conventional systems are disadvantageous because they are inefficient, and excessively consume battery power thus limiting the amount of service (and may cause rejection of a deferred area event location service in roaming scenarios).

Method used

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  • Area Event Handling When Current Network Does Not Cover Target Area
  • Area Event Handling When Current Network Does Not Cover Target Area
  • Area Event Handling When Current Network Does Not Cover Target Area

Examples

Experimental program
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Embodiment Construction

[0013]The present invention enables a location system to get informed when a target mobile enters one of the possible networks or serving nodes that cover the target area, and re-aims the original area event request. The invention also overcomes the prior art issue related to network selection when there are multiple networks available at a certain area.

[0014]An enhanced procedure in accordance with the principles of the present invention is based on a mobile network list and / or mobile serving nodes (e.g. MSC, SGSN, MME etc) with estimated geographic coverage areas stored in the Home Location Server, the list includes the mobile networks and mobile serving nodes, and the estimated service coverage of each mobile networks and serving node in the stored list. The mobile enters the new network coverage, it uses these lists to make a decision for network access selection. Although the network selection can be done manually by the user, however, these lists are predefined by the operator...

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Abstract

Area event triggers are handled by receiving an original area event trigger with an initial target area within a given mobile network, for a given target mobile device. When the target mobile device is outside the mobile network serving the target area, a first changed area event trigger based on entry into the given mobile network is transmitted to the given target mobile device. When the first changed area event trigger becomes satisfied, a second changed area event trigger is generated based on entry into the initial target area, and transmitted to the given target mobile device. The second changed area event trigger may be based on entry into a region larger than, but including, the initial target area. Then when the second changed area event trigger becomes satisfied, the original area event trigger may be transmitted to the target mobile device.

Description

[0001]The present application is a continuation-in-part of U.S. patent application Ser. No. 12 / 805,201, entitled “Mobile Based Area Event Handling When Currently Visited Network Does Not Cover Area”, filed Jul. 19, 2010, to Zhu et al.; which in turn is a continuation of U.S. Pat. No. 7,764,961, entitled “Mobile Based Area Event Handling When Currently Visited Network Does Not Cover Area”, filed Sep. 3, 2009, to Zhu et al., which in turn is a continuation of U.S. patent application Ser. No. 11 / 399,528, entitled “Mobile Based Area Event Handling When Currently Visited Network Does Not Cover Area, filed Apr. 7, 2006, to Zhu et al., now abandoned, which in turn is a continuation of U.S. patent application Ser. No. 10 / 459,448, entitled “Mobile Based Area Event Handling When Currently Visited Network Does Not Cover Area”, filed Jun. 12, 2003, to Zhu, now abandoned; U.S. patent application Ser. No. 12 / 585,104, which is a continuation-in-part of U.S. patent application Ser. No. 12 / 007,948, ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04W36/00H04W36/16H04W4/02H04W4/029
CPCH04W36/16H04W36/0011H04W8/04H04W8/08H04W8/10H04W4/02H04W4/029
InventorZHU, YINJUNTHOMPSON, PAUL
OwnerTELECOMM SYST INC