Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-05-29
1998-02-10
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455411, 455428, 455430, 455519, 370327, H04B 7185
Patent
active
057178305
ABSTRACT:
In a mobile communication system, a system for providing communication between multiple users in a closed user group arrangement includes first and second mobile earth terminals (METs) registering with the mobile satellite system. The first MET selects a closed user group network identifier (NET ID) representing a NET group to establish voice communication therewith and transmits the NET ID to a central controller. The central controller receives the NET ID from the first MET, validates the first MET for communication, validates the NET ID, allocates a frequency for the NET group, and broadcasts the message to the NET group informing the NET group of the allocated frequency. The second MET tunes to the frequency in response, to the message broadcast by the central controller. The closed user group arrangement provides security measures to ensure only authorized METs gain access to the NET group, dual standby mode of operation, and priority default operation.
REFERENCES:
patent: 4951279 (1990-08-01), Hotta
patent: 5216427 (1993-06-01), Yan et al.
patent: 5239647 (1993-08-01), Comroe et al.
patent: 5303286 (1994-04-01), Wiedeman
patent: 5371898 (1994-12-01), Grube et al.
patent: 5392355 (1995-02-01), Khurana et al.
patent: 5394560 (1995-02-01), Kane
patent: 5488649 (1996-01-01), Schellinger
patent: 5533023 (1996-07-01), Ohlson et al.
patent: 5555257 (1996-09-01), Dent
patent: 5592470 (1997-01-01), Rudrapatna et al.
patent: 5659878 (1997-08-01), Uchida et al.
"North American Mobile Satellite System Signaling Architecture", Lawrence White et al., American Institute of Aeronautics and Astronautics, Inc., pp. 427-439.
"The AMSC/TMI Mobile Satellite Services (MSS) System Ground Segment Architecture", J. Lunsford, et al., American Institute of Aeronautics and Astronautics, Inc., pp. 405-426.
"Call Control in the AMSC Mobile Satellite Service System", William R.H. Tisdale, et al., Pre-Publication Review Copy, American Institute of Aeronautics and Astronautics, Mar. 1, 1994, pp. 1-13.
"Westinghouse MSAT Mobile Terminal Channel Emulator", A. Fasulo et al., American Institute of Aeronautics and Astronautics, Inc., pp. 256-260.
"MSAT Network Communications Controller and Network Operations Center", Tony Harvey et al., American Institute of Aeronautics and Astronautics, Inc., pp. 270-279.
"MSAT and Cellular Hybrid Networking", Patrick W. Baranowsky II, Westinghouse Electric Corporation.
"Feederlink Earth Station to Provide Mobile Satellite Services in North America", Robert H. McCauley, et al., American Institute of Aeronautics and Astronautics, Jan./Feb. 1994, pp. 1-9.
"Radio Transmission in the American Mobile Satellite System", Charles Kittiver, American Institute of Aeronautics and Astronautics, Inc., pp. 280-294.
"Summary of the AMSC Mobile Telephone System", Gary A. Johanson, et al., American Institue of Aeronautics and Astronautics, Inc., pp. 1-11.
"Implementation of a System to Provide Mobile Satellite Services in North America", Gary A. Johanson, et al., presented at International Mobile Satellite Conference '93, Jun. 16-18, 1993.
"The American Mobile Satellite Corporation Space Segment", David J. Whalen, et al., pp. 394-404.
"Mobile Earth Terminals in The AMSC Mobile Satellite Service System", Kok-Song Fong, et al., American Institute of Aeronautic and Astronautics, (1994), pp. 1-11.
Sigler C. Edward
Sweet Richard S.
AMSC Subsidiary Corporation
Eisenzopf Reinhard J.
Le Thanh
LandOfFree
Satellite trunked radio service system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Satellite trunked radio service system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Satellite trunked radio service system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2085024