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(56) References Cited U.S. PATENT DOCUMENTS 5,432,841 A * 7/1995 Rimer ...................... .. 455/457 5,835,907 A * 11/1998 Newman ................... .. 707/10 6,104,931 A * 8/2000 Havinis et al. ........ .. 455/456.5 6,138,003 A * 10/2000 Kingdon et al. .. .... .. 455/410 6,185,427 B1 * 2/2001 Krasner et al. 455/456.2 6,377,810 B1 * 4/2002 Geiger et al. 455/456.2 6,553,236 B1 * 4/2003 Dunko et al. ............. .. 455/457 6,618,593 B1 * 9/2003 Drutrnan et al. ....... .. 455/456.3 6,757,545 B1 * 6/2004 Nowak et al. 455/456.2 6,775,255 B1 * 8/2004 Roy ............ .. 370/331 6,885,874 B1 * 4/2005 Grube et al. .............. .. 455/520 2002/0098832 A1 * 7/2002 Fleischer et al. ......... .. 455/414 2002/0138650 A1 * 9/2002 Yamamoto et al. ....... .. 709/245 2004/0185875 A1 * 9/2004 Diacakis et al. ....... .. 455/456.3

* cited by examiner

Primary ExamineriBenny Quoc Tieu

(57) ABSTRACT

The number of messages required in networks where location services are deployed may be reduced, by providing updated location information regarding particular subscribers, or even all subscribers, to subscribed or otherwise logged applications or services upon obtaining and providing location information for a different application or service. Consequential watch services in accordance with the principles of the present invention provide location information to one or more services OTHER than or in ADDITION to the service currently requesting location information, based on subscription to a suitable service.

22 Claims, 4 Drawing Sheets

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Suite of LCS Apps LCS CLIENT Location Server HLR

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7 2. Provide Subsciter into (imsi, location information, sub state) 3. Provide Subscriber inlo ack. (location information, sub state)

4. Provide Subscriber Location

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6. Provide Subscriber Location ack.

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MSC/Packet Data Node RAN UE

5. Location Request
7

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8. LCS Service IFlesponse App 2

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9. LCS Service IResponse App 3

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/\/204 206 208 /51 O 21 2
Suite of LCS Apps LCS CLIENT Location Server HLR MSC/Packet Data Node RAN UE
1. LCS Service Request
2. Provide Subscnber Info (imsi, location information, sub state)
_.__.____>
3. Provide Subscriber lnlo ack. (location information, sub state)
4-—————-—-
4. Provide Subscriber Location
> .
5. Location Request
6. Provide Subscriber Location ack.
4
7. LCS Service Response to App 1
8. LCS Service Response App 2
9.LCSSer' R on A 3
vice esp se pp

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FIG. 2

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