CA2118537A1 - High Data Rate Satellite Communication System - Google Patents

High Data Rate Satellite Communication System

Info

Publication number
CA2118537A1
CA2118537A1 CA2118537A CA2118537A CA2118537A1 CA 2118537 A1 CA2118537 A1 CA 2118537A1 CA 2118537 A CA2118537 A CA 2118537A CA 2118537 A CA2118537 A CA 2118537A CA 2118537 A1 CA2118537 A1 CA 2118537A1
Authority
CA
Canada
Prior art keywords
terminals
satellite
data
relay system
modulated data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2118537A
Other languages
French (fr)
Other versions
CA2118537C (en
Inventor
Harold A. Rosen
Victor S. Reinhardt
Parthasarathy Ramanujam
Gregory C. Busche
Andrew L. Strodtbeck
Jennifer L. Vollbrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DirecTV Group Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2118537A1 publication Critical patent/CA2118537A1/en
Application granted granted Critical
Publication of CA2118537C publication Critical patent/CA2118537C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service

Abstract

A satellite-based communication system (10) providing high rate transfer of data between linked terminals (11, 12). The system (10) comprises a plurality of user terminals (VSAT's) (111, 12) that are linked by and that communicate with each other by way of a satellite- based relay system (13). A network control center (14) provides configuration signals that control the satellite relay system (13) and coordinate linking of terminals (111, 12) to each other. Frequency division multiplexing uplinks are used from the terminals (111, 12) and the network control center (14) to the satellite relay system (13). Time division multiplexing are used on downlinks from the satellite relay system (13) to the terminals (11, 12) and the network control center (14). Each user terminal (111,12) comprises a data compression and decompression circuit (22), a transceiver (23), and an antenna (25) for transmitting and receiving data to and from the satellite relay system (13). The satellite relay system (13) comprises a satellite (30), a wide area antenna (35), a plurality of receive antennas (32, 24), a plurality of transmit antennas (31, 33), and a signal processor (36). The wide area antenna (35) is provided for communicating command and control signals between the user terminals (11, 12) and the network control center (13). The plurality of receive antennas (32, 34) operate in a first frequency band and produce a first plurality of beams that cover a service area. The plurality of receive antennas (1332, 34) receive time domain modulated data from the user terminals (11, 12). The plurality of transmit antennas (31, 33) operate in a second frequency band and produce a second plurality of beams that cover the service area. The plurality of transmit antennas (31, 33) transmit frequency domain modulated data to the user terminals (11, 12). The signal processor (36) demodulates the time domain modulated data received from a user terminal (11), routes the demodulated data so that it is transmitted to a second user terminal (12), remodulates the data to provide frequency domain modulated data, and transmits the frequency domain modulated data to the second user terminal (12). Video cameras (21) and monitors (24) are coupled to the user terminals (11, 12) to provide for video teleconferencing.
CA002118537A 1993-10-21 1994-10-20 High data rate satellite communication system Expired - Lifetime CA2118537C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/142,524 US5625624A (en) 1993-10-21 1993-10-21 High data rate satellite communication system
US08/142,524 1993-10-21

Publications (2)

Publication Number Publication Date
CA2118537A1 true CA2118537A1 (en) 1995-04-22
CA2118537C CA2118537C (en) 2000-02-22

Family

ID=22500177

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002118537A Expired - Lifetime CA2118537C (en) 1993-10-21 1994-10-20 High data rate satellite communication system

Country Status (5)

Country Link
US (1) US5625624A (en)
EP (1) EP0650270B1 (en)
JP (1) JP3137846B2 (en)
CA (1) CA2118537C (en)
DE (1) DE69421997T2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW274170B (en) * 1994-06-17 1996-04-11 Terrastar Inc Satellite communication system, receiving antenna & components for use therein
GB9512283D0 (en) 1995-06-16 1995-08-16 Int Mobile Satellite Org Communication method and apparatus
US5828335A (en) * 1995-11-06 1998-10-27 Martin Marietta Corporation Spacecraft communication channel power control system
US5835487A (en) * 1995-12-08 1998-11-10 Worldspace International Network, Inc. Satellite direct radio broadcast system
JPH09200164A (en) * 1996-01-19 1997-07-31 Hitachi Denshi Ltd Fdma transmitter-receiver
DE19609235A1 (en) * 1996-03-09 1997-09-18 Deutsche Telekom Ag Method and arrangement for improved radio communication in a satellite-based VSAT network
US5784030A (en) * 1996-06-06 1998-07-21 Hughes Electronics Corporation Calibration method for satellite communications payloads using hybrid matrices
US5734962A (en) * 1996-07-17 1998-03-31 General Electric Company Satellite communications system utilizing parallel concatenated coding
US5996103A (en) * 1996-07-31 1999-11-30 Samsung Information Systems America Apparatus and method for correcting errors in a communication system
US6009084A (en) * 1996-10-07 1999-12-28 Nynex Science & Technology, Inc. Concentrating transmultiplexer for cable telephony
US6552832B1 (en) 1996-10-07 2003-04-22 Telesector Resources Group, Inc. Telecommunications system including transmultiplexer installed between digital switch and optical signal transmission fiber
US5978363A (en) * 1996-10-18 1999-11-02 Telogy Networks, Inc. System and method for multi-dimensional resource scheduling
US6333922B1 (en) * 1996-11-05 2001-12-25 Worldspace, Inc. Satellite payload processing system for switching uplink signals to time division multiplexed downlink signals
US6101180A (en) 1996-11-12 2000-08-08 Starguide Digital Networks, Inc. High bandwidth broadcast system having localized multicast access to broadcast content
GB2319695B (en) * 1996-11-20 1999-03-03 I Co Global Communications Communication method and apparatus
US6128286A (en) * 1996-12-03 2000-10-03 Motorola, Inc. Method and apparatus for using the sidelobe of a long range antenna for a short range communication link
US5995495A (en) * 1997-05-23 1999-11-30 Mci Communications Corporation Method of and system for providing geographically targeted broadcast satellite service
US6708029B2 (en) * 1997-06-02 2004-03-16 Hughes Electronics Corporation Broadband communication system for mobile users in a satellite-based network
US6125261A (en) * 1997-06-02 2000-09-26 Hughes Electronics Corporation Method and system for communicating high rate data in a satellite-based communications network
US6032041A (en) * 1997-06-02 2000-02-29 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network
US6175719B1 (en) * 1997-06-25 2001-01-16 Hughes Electronics Corporation Multi-spot-beam satellite system with broadcast and surge capacity capability
US5999519A (en) * 1997-07-28 1999-12-07 Geo-Com, Incorporated Dual channel high speed wireless data transfer device
US6047162A (en) * 1997-09-25 2000-04-04 Com Dev Limited Regional programming in a direct broadcast satellite
US6201798B1 (en) 1997-11-14 2001-03-13 Worldspace Management Corporation Signaling protocol for satellite direct radio broadcast system
CN1281606A (en) * 1997-11-14 2001-01-24 世界空间管理公司 Signaling protocol for satellite direct radio broadcast system
US6185265B1 (en) 1998-04-07 2001-02-06 Worldspace Management Corp. System for time division multiplexing broadcast channels with R-1/2 or R-3/4 convolutional coding for satellite transmission via on-board baseband processing payload or transparent payload
US6138261A (en) * 1998-04-29 2000-10-24 Trw Inc. Concatenated coding system for satellite communications
US6279132B1 (en) 1998-09-28 2001-08-21 Trw Inc. Concatenated error control method and system for a processing satellite uplink
US6625776B1 (en) 1998-09-30 2003-09-23 Northrop Grumman Corporation Adaptive coding scheme for a processing communications satellite
US6243560B1 (en) * 1998-10-30 2001-06-05 Trw Inc. Latency reduction in satellite communication systems
US6574794B1 (en) * 1998-12-18 2003-06-03 Hughes Electronics Corporation System and satellite payload architecture for interactive data distribution services
US6477182B2 (en) * 1999-06-08 2002-11-05 Diva Systems Corporation Data transmission method and apparatus
US6122483A (en) * 1999-06-28 2000-09-19 Nortel Networks Limited Method and apparatus for multicast messaging in a public satellite network
US6466569B1 (en) * 1999-09-29 2002-10-15 Trw Inc. Uplink transmission and reception techniques for a processing satelliteation satellite
US6898235B1 (en) * 1999-12-10 2005-05-24 Argon St Incorporated Wideband communication intercept and direction finding device using hyperchannelization
US20010025377A1 (en) * 1999-12-30 2001-09-27 Hinderks Larry W. High bandwidth transmission system and method having local insertion, delay play and demand play
US6836658B1 (en) * 2000-03-03 2004-12-28 Ems Technologies, Inc. High data rate satellite communications system and method
EP1316233B1 (en) 2000-08-02 2011-10-05 ATC Technologies, LLC Coordinated frequency reuse of a terrestrial and a satellite system.
US6859652B2 (en) * 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
US7792488B2 (en) * 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
US6847817B2 (en) * 2001-12-12 2005-01-25 Northrop Grumman Corporation Satellite communication apparatus with multiple hub stations providing increased bandwidth to meet service requirements
US6804208B2 (en) * 2002-01-10 2004-10-12 Harris Corporation Method and device for establishing communication links with parallel scheduling operations in a communication system
AU2003249603A1 (en) * 2002-04-29 2003-11-11 Etherware, Llc System for providing broadband mobile access from geostationary satellites to platforms using small, low profile antennas
US7463707B2 (en) * 2002-09-03 2008-12-09 Broadcom Corporation Upstream frequency control for docsis based satellite systems
US7408892B2 (en) 2003-01-28 2008-08-05 Broadcom Corporation Upstream adaptive modulation in DOCSIS based applications
US20050204258A1 (en) * 2004-02-13 2005-09-15 Broadcom Corporation Encoding system and method for a transmitter in wireless communications
FR2892253B1 (en) * 2005-10-14 2007-12-28 Thales Sa METHOD FOR GENERATING AND DEMULTIPLEXING AN OPTIMIZED CONTRIBUTION SIGNAL, AND SYSTEM FOR REGIONALIZED DIFFUSION OF DATA.
US8737925B2 (en) 2011-03-10 2014-05-27 Comtech Ef Data Corp. Method for the control of a wireless communications link for mitigating adjacent satellite interference
US9848370B1 (en) * 2015-03-16 2017-12-19 Rkf Engineering Solutions Llc Satellite beamforming
KR102366830B1 (en) 2015-04-10 2022-02-24 비아셋, 인크 Ground based antenna beamforming for communications between access nodes and users terminals linked by a relay such as a satellite
US10128939B2 (en) 2015-04-10 2018-11-13 Viasat, Inc. Beamformer for end-to-end beamforming communications system
US10187141B2 (en) 2015-04-10 2019-01-22 Viasat, Inc. Cross-band system for end-to-end beamforming
US10079706B2 (en) * 2016-07-21 2018-09-18 Raytheon Company Apparatus for orthogonal 16-QPSK modulated transmission

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199660A (en) * 1977-11-07 1980-04-22 Communications Satellite Corporation FDM/TDM Transmultiplexer
US4425639A (en) * 1981-01-12 1984-01-10 Bell Telephone Laboratories, Incorporated Satellite communications system with frequency channelized beams
US4625308A (en) * 1982-11-30 1986-11-25 American Satellite Company All digital IDMA dynamic channel allocated satellite communications system and method
IT1207048B (en) * 1984-11-02 1989-05-17 Consiglio Nazionale Ricerche TELECOMMUNICATIONS SYSTEM VIA SATELLITE WITH MULTI-BAND COVERAGE AND DYNAMIC ASSIGNMENT OF TRANSMISSION CAPACITY.
JPS6471329A (en) * 1987-09-11 1989-03-16 Nec Corp Mobile body satellite communication system
JP2841460B2 (en) * 1989-04-20 1998-12-24 ソニー株式会社 Image data transmission method, transmission device, reception device, and transmission / reception device
JPH03136417A (en) * 1989-10-23 1991-06-11 Toshiba Corp Exchange for satellite communication
JP2772568B2 (en) * 1990-03-26 1998-07-02 日本電信電話株式会社 Satellite link control method
JPH04245818A (en) * 1991-01-31 1992-09-02 Pioneer Electron Corp Information transmission system
US5247347A (en) * 1991-09-27 1993-09-21 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services
FR2685593B1 (en) * 1991-12-20 1994-02-11 France Telecom FREQUENCY DEMULTIPLEXING DEVICE WITH DIGITAL FILTERS.
US5361261A (en) * 1992-11-02 1994-11-01 National Semiconductor Corporation Frame-based transmission of data
US5473601A (en) * 1993-10-21 1995-12-05 Hughes Aircraft Company Frequency reuse technique for a high data rate satellite communication system
US5463656A (en) * 1993-10-29 1995-10-31 Harris Corporation System for conducting video communications over satellite communication link with aircraft having physically compact, effectively conformal, phased array antenna

Also Published As

Publication number Publication date
DE69421997D1 (en) 2000-01-13
EP0650270A2 (en) 1995-04-26
DE69421997T2 (en) 2000-07-27
EP0650270A3 (en) 1996-06-05
US5625624A (en) 1997-04-29
JP3137846B2 (en) 2001-02-26
JPH07240914A (en) 1995-09-12
EP0650270B1 (en) 1999-12-08
CA2118537C (en) 2000-02-22

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Effective date: 20141020