| 摘要 |
<P>PROBLEM TO BE SOLVED: To address the need to enable wireless presence-based services more efficiently. <P>SOLUTION: A wireless presence proxy WPP415 monitors the messaging and messaging responses of a mobile station MS401 via wireless transceiver equipment 411. Such messaging and messaging responses do not explicitly specify a presence state or state change for the MS. Thus, based upon this monitoring, the WPP infers the presence state/change for the MS and maintains MS location information. The WPP communicates any presence state changes and confirms MS presence state as required by the presence server(s) 225. By monitoring messaging, notifying the server(s) of MS presence and handling server requests, embodiments of the present invention reduce or avoid many existing inefficiencies, such as wide area paging and call set-up and tear-down for each presence ping due to each service, from each presence server. <P>COPYRIGHT: (C)2008,JPO&INPIT |
