Pulse or digital communications – Repeaters – Testing
Patent
1997-04-04
2000-08-01
Vo, Don N.
Pulse or digital communications
Repeaters
Testing
375211, 375221, 370318, 455 134, 455 52, H04B 169
Patent
active
060977523
ABSTRACT:
A satellite communication system (10) includes at least one satellite communication signal repeater (12); at least one ground station (18) for transmitting a feeder link comprised of a plurality of communication signals to the at least one satellite communication signal repeater; and a plurality of user terminals (13) each receiving one of the communication signals over a user link from the at least one satellite communication signal repeater. The satellite communication system further includes a closed loop power control system (80) having a plurality of inner loops (84), individual ones of which operate to compensate one of the user links for communication signal impairments occurring at least between the user terminal and the at least one satellite communication repeater, and an outer loop (82) which operates to compensate all of the user links for feeder link impairments occurring between the at least one ground station and the at least one satellite communication signal repeater.
REFERENCES:
patent: Re32905 (1989-04-01), Baran
patent: 4261054 (1981-04-01), Scharla-Nielsen
patent: 4309764 (1982-01-01), Acampora
patent: 4731866 (1988-03-01), Muratani et al.
patent: 4752925 (1988-06-01), Thompson et al.
patent: 4752967 (1988-06-01), Bustamante et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4941199 (1990-07-01), Saam
patent: 5010317 (1991-04-01), Schwendeman et al.
patent: 5073900 (1991-12-01), Mallinckrodt
patent: 5081703 (1992-01-01), Lee
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5119225 (1992-06-01), Grant et al.
patent: 5126748 (1992-06-01), Ames et al.
patent: 5138631 (1992-08-01), Taylor
patent: 5216427 (1993-06-01), Yan et al.
patent: 5233626 (1993-08-01), Ames
patent: 5239671 (1993-08-01), Linguist et al.
patent: 5265119 (1993-11-01), Gilhousen et al.
patent: 5303286 (1994-04-01), Wiedeman
patent: 5339330 (1994-08-01), Mallinckrodt
patent: 5410728 (1995-04-01), Bertiger et al.
patent: 5415368 (1995-05-01), Horstein et al.
patent: 5422647 (1995-06-01), Hirshfield et al.
patent: 5433726 (1995-07-01), Horstein et al.
patent: 5439190 (1995-08-01), Horstein et al.
patent: 5446756 (1995-08-01), Mallinckrodt
Petition of American Mobile Satellite Corporation Before the FCC, Washington, DC 20554, dated Jun. 3, 1991, pp. 1-15.
Application of Motorola Satellite Communications, Inc. for IRIDIUM A Low Earth Orbit Mobile Satellite System before the FCC, Washington, D.C. Dec. 1990, pp. 49-96.
Before the FCC, Washington, D.C. 20554, Aries Constellation Low Earth Orbit Satellite System Proposal of Constellation Communications, Inc. Jun. 3, 1991, Appendix A, B, and C.
Application of TRW Inc. for Authority to Construct a New Communications Satellite System Odyssey before the FCC, Washington, D.C. 20554, May 31, 1991 pp. 33-51.
Application of Ellipsat Corporation ELLIPSAT for the Authority to Construct ELLIPSO I An Elliptical Orbit Satellite System, before the FCC, Washington, D.C. 20554, Nov. 2, 1990, pp. 5-34.
Application of Loral Cellular Systems, Corp., Globalstar Mobile COmmunications Wherever You Are, before the FCC, Washington, D.C. Jun. 3, 1991, pp. 94-187.
"an Integrated Satellite-Cellular Land Mobile System for Europe", E. Del Re, University of Florence, Dept. of Electronics Engineering, italy, Sep. 21, 1989.
Current and Future Mobile Satellite Communication Systems, S. Kato et al., IEICE Transactions, vol. E 74 No. 8 Aug. 1991, pp. 2201-2210.
"Digital Network Oriented Mobile Radio Satellite System as an Integrated Part of The GSM Cellular Radio System in Europe", P. Dondl, Deutsch BUndespost/Fernmeldetechniches Zentralmt/Darmstadt, Sep. 21, 1989 Fed. Rep. Germ.
"The OmniTRACS Mobile Satellite Communications and Positioning System", E. Tiedemann, Jr. et al., Vehicle Electronics in the 90's: Proceedings of the In'l. Congress on Transportation Electronics, Oct. 1990.
"Software Implementation of a PN Spread Spectrum Receiver to Accommodate Dynamics", C. Cann et al., IEEE Trans. on Comm., vol. COM-25, No. 8, Aug. 1977.
"A Communication Technique for Multipath Channels", R. Price, Proceedings of the IR, Mar. 1958, pp. 555-570.
"Increased Capacity Using CDMA for Mobile Satellite Communication", K. Gilhousen et al., IEEE Journal on Selected Areas in Communications, vol. 8, No. 4, May 1990, pp. 503-514.
"The Iridium System -- A Revolutionary Satellite Communications System Developed with Innovative Applications of Technology", D. Sterling et al., IEEE, MILCOM 1991, Nov. 4-7.
"Iridium: Key to Worldwide Cellular Communications", J. Foley, Telecommunications, Oct. 1991, pp. 23-28.
A.G. Reed et al., "Interference In The Fixed Satellite Service Bands Between The Feeder-Links Of Networks Using Non-Geostationary Satellites And Networks Using Geostationary Satellites", Feb. 11, 1993, pp. 251-256.
B. R. Vojcic et al., "Power Control Versus Capacity of a CDMA System Operating Over a Low Earth Orbiting Satellite Link", Nov. 29, 1993, 5 pages.
Sites Michael J.
Wiedeman Robert A.
Globalstar L.P.
Vo Don N.
LandOfFree
Closed loop power control for low earth orbit satellite communic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closed loop power control for low earth orbit satellite communic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop power control for low earth orbit satellite communic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-671058