DE60034252D1 - Verfahren und vorrichtung zum selektiven betrieb von satelliten in tundra-umlaufbahnen zur verringerung des bedarfs an empfangspufferspreicher für zeitdiversitätssignale - Google Patents

Verfahren und vorrichtung zum selektiven betrieb von satelliten in tundra-umlaufbahnen zur verringerung des bedarfs an empfangspufferspreicher für zeitdiversitätssignale

Info

Publication number
DE60034252D1
DE60034252D1 DE60034252T DE60034252T DE60034252D1 DE 60034252 D1 DE60034252 D1 DE 60034252D1 DE 60034252 T DE60034252 T DE 60034252T DE 60034252 T DE60034252 T DE 60034252T DE 60034252 D1 DE60034252 D1 DE 60034252D1
Authority
DE
Germany
Prior art keywords
satellite
late
loop
receivers
early
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.)
Expired - Lifetime
Application number
DE60034252T
Other languages
English (en)
Other versions
DE60034252T2 (de
Inventor
Paul Marko
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.)
XM Satellite Radio Inc
Original Assignee
XM Satellite Radio Inc
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 XM Satellite Radio Inc filed Critical XM Satellite Radio Inc
Application granted granted Critical
Publication of DE60034252D1 publication Critical patent/DE60034252D1/de
Publication of DE60034252T2 publication Critical patent/DE60034252T2/de
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
    • H04B7/195—Non-synchronous stations
    • 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
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • H04B7/18534—Arrangements for managing transmission, i.e. for transporting data or a signalling message for enhancing link reliablility, e.g. satellites diversity
DE60034252T 1999-11-04 2000-11-01 Verfahren und vorrichtung zum selektiven betrieb von satelliten in tundra-umlaufbahnen zur verringerung des bedarfs an empfangspufferspreicher für zeitdiversitätssignale Expired - Lifetime DE60034252T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US433849 1989-11-08
US09/433,849 US6442385B1 (en) 1999-11-04 1999-11-04 Method and apparatus for selectively operating satellites in tundra orbits to reduce receiver buffering requirements for time diversity signals
PCT/US2000/030033 WO2001033720A2 (en) 1999-11-04 2000-11-01 Method and apparatus for selectively operating satellites in tundra orbits to reduce receiver buffering requirements for time diversity signals

Publications (2)

Publication Number Publication Date
DE60034252D1 true DE60034252D1 (de) 2007-05-16
DE60034252T2 DE60034252T2 (de) 2007-12-20

Family

ID=23721775

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60034252T Expired - Lifetime DE60034252T2 (de) 1999-11-04 2000-11-01 Verfahren und vorrichtung zum selektiven betrieb von satelliten in tundra-umlaufbahnen zur verringerung des bedarfs an empfangspufferspreicher für zeitdiversitätssignale

Country Status (8)

Country Link
US (4) US6442385B1 (de)
EP (2) EP1254525B1 (de)
AT (1) ATE358919T1 (de)
AU (1) AU2423801A (de)
CA (1) CA2388636A1 (de)
DE (1) DE60034252T2 (de)
ES (1) ES2284551T3 (de)
WO (1) WO2001033720A2 (de)

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US6851651B2 (en) * 2002-02-15 2005-02-08 Lockheed Martin Corporation Constellation of spacecraft, and broadcasting method using said constellation
US7051980B2 (en) * 2002-02-26 2006-05-30 Lockheed Martin Corporation Efficient orbit sparing system for space vehicle constellations
US6702234B1 (en) 2002-03-29 2004-03-09 Lockheed Martin Corporation Fault tolerant attitude control system for zero momentum spacecraft
US6616104B1 (en) * 2002-06-24 2003-09-09 Lockheed Martin Corporation Spacecraft configuration and attitude steering method for highly inclined orbit (HIO) communications
JP2004128658A (ja) * 2002-09-30 2004-04-22 Mitsubishi Electric Corp 衛星通信システム、受信地球局及び通信衛星切替方法
US20050175119A1 (en) * 2004-02-09 2005-08-11 Worley David A. Forward link quality link monitoring apparatus and method
US7624948B2 (en) * 2004-12-07 2009-12-01 Lockheed Martin Corporation Optimized land mobile satellite configuration and steering method
US7669803B2 (en) * 2004-12-07 2010-03-02 Lockheed Martin Corporation Optimized land mobile satellite system for north american coverage
EP2254265A3 (de) 2005-01-05 2013-11-27 ATC Technologies, LLC Adaptive Strahlformung mit Mehrbenutzerdetektion und Interferenzreduktion bei Satellitenkommunikationsystemen und Verfahren
US7970345B2 (en) * 2005-06-22 2011-06-28 Atc Technologies, Llc Systems and methods of waveform and/or information splitting for wireless transmission of information to one or more radioterminals over a plurality of transmission paths and/or system elements
US7835826B1 (en) 2005-12-13 2010-11-16 Lockheed Martin Corporation Attitude determination system for yaw-steering spacecraft
ES2340062T3 (es) * 2006-01-19 2010-05-28 Thales Dispositivo de control de posicion(es) relativa(s) mediante analisis de señales bifrecuencia, para una nave espacial de un grupo de naves espaciales en formacion.
US8942618B2 (en) * 2006-06-05 2015-01-27 The Directv Group, Inc. Method and system for moving and playing content from home-based system to mobile system
US7804796B2 (en) * 2006-07-24 2010-09-28 Delphi Technologies, Inc. Method and system for sending and receiving satellite digital radio programming information for multiple channels
US7925216B2 (en) * 2006-11-10 2011-04-12 The Directv Group, Inc. Mobile receiver solutions for accessing broadband video-on-demand services
US10142013B2 (en) * 2006-12-20 2018-11-27 The Boeing Company Method of optimizing an interplanetary communications network
AU2010215963B2 (en) * 2009-02-19 2015-08-06 Andrew Robert Korb Methods for optimizing the performance, cost and constellation design of satellites for full and partial earth coverage
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FR2983981B1 (fr) * 2011-12-09 2014-08-22 Thales Sa Procede et systeme de commande d'un ensemble d'au moins deux satellites, concus pour fournir un service sur une orbite geostationnaire, rendant ledit service sur une orbite non-geostationnaire
US9277249B2 (en) 2012-07-24 2016-03-01 The Directv Group, Inc. Method and system for providing on-demand and pay-per-view content through a hospitality system
US9363566B2 (en) 2014-09-16 2016-06-07 The Directv Group, Inc. Method and system for prepositioning content and distributing content in a local distribution system
US10568009B2 (en) 2016-07-14 2020-02-18 Viasat, Inc. Variable playback rate of streaming content for uninterrupted handover in a communication system
US10470091B2 (en) 2016-09-07 2019-11-05 Viasat, Inc. Variable size linear video content buffers for uninterrupted handover in a multi-beam satellite system
US10742311B2 (en) * 2017-03-02 2020-08-11 Lynk Global, Inc. Simplified inter-satellite link communications using orbital plane crossing to optimize inter-satellite data transfers
US10533856B2 (en) 2017-04-05 2020-01-14 Novatel Inc. Navigation system utilizing yaw rate constraint during inertial dead reckoning
US10084535B1 (en) 2017-04-26 2018-09-25 UbiquitiLink, Inc. Method and apparatus for handling communications between spacecraft operating in an orbital environment and terrestrial telecommunications devices that use terrestrial base station communications
US10951305B2 (en) 2018-04-26 2021-03-16 Lynk Global, Inc. Orbital base station filtering of interference from terrestrial-terrestrial communications of devices that use protocols in common with orbital-terrestrial communications
US11528077B2 (en) * 2019-06-25 2022-12-13 Ast & Science, Llc Selection, diversity combining or satellite MIMO to mitigate scintillation and/or near-terrestrial multipath to user devices
US10830900B1 (en) * 2019-10-14 2020-11-10 Thinkom Solutions, Inc. Non-TLE-based pointing acquisition of inclined-geostationary satellite
WO2021202045A1 (en) * 2020-04-03 2021-10-07 Viasat, Inc. Satellite communications system with non-geosynchronous orbits
WO2022150518A1 (en) 2021-01-06 2022-07-14 Lynk Global, Inc. Satellite communication system transmitting navigation signals using a wide beam and data signals using a directive beam

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US6954613B1 (en) * 1999-09-10 2005-10-11 Virtual Geosatellite Holdings, Inc. Fixed satellite constellation system employing non-geostationary satellites in sub-geosynchronous elliptical orbits with common ground tracks
US6442385B1 (en) * 1999-11-04 2002-08-27 Xm Satellite Radio, Inc. Method and apparatus for selectively operating satellites in tundra orbits to reduce receiver buffering requirements for time diversity signals
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US6851651B2 (en) * 2002-02-15 2005-02-08 Lockheed Martin Corporation Constellation of spacecraft, and broadcasting method using said constellation

Also Published As

Publication number Publication date
US20020151273A1 (en) 2002-10-17
US20070032191A1 (en) 2007-02-08
ES2284551T3 (es) 2007-11-16
US7136640B2 (en) 2006-11-14
EP1254525B1 (de) 2007-04-04
DE60034252T2 (de) 2007-12-20
US20080268837A1 (en) 2008-10-30
CA2388636A1 (en) 2001-05-10
EP1254525A4 (de) 2004-03-31
EP1254525A2 (de) 2002-11-06
WO2001033720A2 (en) 2001-05-10
WO2001033720A3 (en) 2002-06-13
ATE358919T1 (de) 2007-04-15
AU2423801A (en) 2001-05-14
EP1720266A1 (de) 2006-11-08
US6442385B1 (en) 2002-08-27
US7406311B2 (en) 2008-07-29

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