专利名称：Providing presence information in a
communication network
发明人：John M. Harris,Ronald T. Crocker,Thomas B.
Hart,Valentin Oprescu-Surcobe
申请号：US11007567申请日：20041208
公开号：US20060119882A1公开日：20060608
专利附图：
摘要：A server () designates and assigns each of a plurality of communication devicesto at least one of a plurality of groups. The server () prepares a communication having
presence information corresponding to a status of the communication devices in thegroup; determines network infrastructure device(s) serving the group; and transmits, at apre-determined time, the communication to the network infrastructure device(s). Anetwork infrastructure device (--) receives the communication and transmits, as a commonchannel signal during the pre-determined time, a signal with the presence information. Acommunication unit () receives an indication of the pre-determined time; transmits, at aninterval proximate to the pre-determined time, a signal indicating the communicationdevice's status; and receives, at the pre-determined time, the signal with the presenceinformation.
申请人：John M. Harris,Ronald T. Crocker,Thomas B. Hart,Valentin Oprescu-Surcobe
地址：Chicago IL US,St. Charles IL US,West Dundee IL US,Northbrook IL US
国籍：US,US,US,US
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