Presence server unit

Details Presence server unit Presence server unit

2005-12-08

2010-02-23

Taylor, Barry W (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S401000, C370S252000, C455S432300, C455S456300

Reexamination Certificate

active

07668133

ABSTRACT:
A presence server unit, which manages presence information relating to the availability of a communication unit and informs a plurality of checking units about changes to the presence information on the basis of a notification ranking which is specified by priority information.

REFERENCES:
patent: 6223046 (2001-04-01), Hamill-Keays et al.
patent: 2005/0135240 (2005-06-01), Ozugur
patent: 2006/0031293 (2006-02-01), Thommes et al.
patent: 2006/0165058 (2006-07-01), Caballero-McCann et al.
patent: 1 441 486 (2004-07-01), None
3rd Generation Partnership Project; 3GPP TS 22.141 v6.2.1 (Jul. 2004), Technical Specification Group Services and System Aspects; Presence Service; Stage 1 (Release 6).
3rd Generation Partnership Project; 3GPP TS 23.141 v6.7.0 (Sep. 2004); Technical Specification Group Services and System Aspects; Presence Service; Architecture and functional description (Release 6).

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