Satellite-based ring alert apparatus and method of use

Details Satellite-based ring alert apparatus and method of use Satellite-based ring alert apparatus and method of use

1994-10-03

1999-07-27

To, Doris H.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455434, 455427, 455455, H04B 7185

Patent

active

059306793

ABSTRACT:
A satellite communication system provides users with global cellular coverage. To facilitate delivery of calls to users having subscriber units, a fixed channel is defined wherein subscriber units are notified of incoming calls. Subscriber units monitor this ring alert channel and examine subscriber unit IDs transmitted in a ring alert message contained therein. When a subscriber unit determines from the subscriber unit ID that a call is being directed to it, it calls into a network to receive a call. Subscriber units also monitor this fixed channel to receive a control channel directory identifying the location of a subscriber unit's broadcast (control) channels.

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patent: 5448623 (1995-09-01), Wiedeman et al.
patent: 5539921 (1996-07-01), Taylor

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