FR2737625B1 - Procede d'attenuation des interferences entre systeme de telecommunications se partageant un meme spectre de frequence et stations terrestres appliquant ce procede - Google Patents

Procede d'attenuation des interferences entre systeme de telecommunications se partageant un meme spectre de frequence et stations terrestres appliquant ce procede

Info

Publication number
FR2737625B1
FR2737625B1 FR9609634A FR9609634A FR2737625B1 FR 2737625 B1 FR2737625 B1 FR 2737625B1 FR 9609634 A FR9609634 A FR 9609634A FR 9609634 A FR9609634 A FR 9609634A FR 2737625 B1 FR2737625 B1 FR 2737625B1
Authority
FR
France
Prior art keywords
frequency spectrum
same frequency
telecommunications system
mitigating interference
system sharing
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
FR9609634A
Other languages
English (en)
Other versions
FR2737625A1 (fr
Inventor
Gregory Barton Vatt
Dennis Paul Diekelman
John E Major
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of FR2737625A1 publication Critical patent/FR2737625A1/fr
Application granted granted Critical
Publication of FR2737625B1 publication Critical patent/FR2737625B1/fr
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
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1007—Communications satellites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1085—Swarms and constellations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/242—Orbits and trajectories
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
    • 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
    • H04B7/18563—Arrangements for interconnecting multiple systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Radio Relay Systems (AREA)
FR9609634A 1995-07-31 1996-07-31 Procede d'attenuation des interferences entre systeme de telecommunications se partageant un meme spectre de frequence et stations terrestres appliquant ce procede Expired - Lifetime FR2737625B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/509,677 US5894590A (en) 1995-07-31 1995-07-31 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof

Publications (2)

Publication Number Publication Date
FR2737625A1 FR2737625A1 (fr) 1997-02-07
FR2737625B1 true FR2737625B1 (fr) 2001-09-21

Family

ID=24027647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9609634A Expired - Lifetime FR2737625B1 (fr) 1995-07-31 1996-07-31 Procede d'attenuation des interferences entre systeme de telecommunications se partageant un meme spectre de frequence et stations terrestres appliquant ce procede

Country Status (6)

Country Link
US (2) US5894590A (fr)
CN (1) CN1148296A (fr)
CA (1) CA2178897A1 (fr)
DE (1) DE19629744A1 (fr)
FR (1) FR2737625B1 (fr)
GB (1) GB2304003B (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6198907B1 (en) * 1998-02-02 2001-03-06 Motorola, Inc. Satellite communications systems using satellites in a zero-drift constellation
US6487476B1 (en) * 1998-09-24 2002-11-26 Esbh, Inc. Redundant satellite system
US6678520B1 (en) * 1999-01-07 2004-01-13 Hughes Electronics Corporation Method and apparatus for providing wideband services using medium and low earth orbit satellites
US6188896B1 (en) * 1999-02-22 2001-02-13 Trw Inc. Cellular satellite communication system and method for controlling antenna gain pattern therein
GB2352363A (en) * 1999-07-21 2001-01-24 Ico Services Ltd Satellite communications system with broadcast channel switching
US6511020B2 (en) * 2000-01-07 2003-01-28 The Boeing Company Method for limiting interference between satellite communications systems
JP3658277B2 (ja) * 2000-04-28 2005-06-08 株式会社日立製作所 非静止衛星を使用する通信或いは放送の親側システムあるいは子側装置
US8363744B2 (en) 2001-06-10 2013-01-29 Aloft Media, Llc Method and system for robust, secure, and high-efficiency voice and packet transmission over ad-hoc, mesh, and MIMO communication networks
US6725013B1 (en) 2000-06-15 2004-04-20 Hughes Electronics Corporation Communication system having frequency reuse in non-blocking manner
US7200360B1 (en) 2000-06-15 2007-04-03 The Directv Group, Inc. Communication system as a secondary platform with frequency reuse
AU2001284688B2 (en) * 2000-08-02 2006-07-06 Atc Technologies, Llc Coordinated satellite-terrestrial frequency reuse
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
US6895217B1 (en) 2000-08-21 2005-05-17 The Directv Group, Inc. Stratospheric-based communication system for mobile users having adaptive interference rejection
US7317916B1 (en) 2000-09-14 2008-01-08 The Directv Group, Inc. Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection
US7369847B1 (en) 2000-09-14 2008-05-06 The Directv Group, Inc. Fixed cell communication system with reduced interference
US6628921B1 (en) * 2000-10-13 2003-09-30 Globalstar L.P. Return link channel loading of multiple satellites with multiple spread spectrum user terminals
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
US6340949B1 (en) * 2000-12-07 2002-01-22 Hughes Electronics Corporation Multiple beam phased array with aperture partitioning
US7809403B2 (en) 2001-01-19 2010-10-05 The Directv Group, Inc. Stratospheric platforms communication system using adaptive antennas
US8396513B2 (en) * 2001-01-19 2013-03-12 The Directv Group, Inc. Communication system for mobile users using adaptive antenna
US7187949B2 (en) * 2001-01-19 2007-03-06 The Directv Group, Inc. Multiple basestation communication system having adaptive antennas
ATE337666T1 (de) * 2001-07-19 2006-09-15 Transcore Link Logistics Corp Phasennachlaufeinrichtung für linear modulierte signale
US7181206B2 (en) * 2001-10-11 2007-02-20 Lyndale Trading Company Ltd. Broadband communication platform and methods of network operation
US8442519B2 (en) * 2003-12-07 2013-05-14 Gogo Llc Spectrum sharing between an aircraft-based air-to-ground communication system and existing geostationary satellite services
US7756490B2 (en) * 2005-03-08 2010-07-13 Atc Technologies, Llc Methods, radioterminals, and ancillary terrestrial components for communicating using spectrum allocated to another satellite operator
US7792070B1 (en) * 2007-04-13 2010-09-07 Douglas Burr Multi-beam satellite network to maximize bandwidth utilization
US8050628B2 (en) * 2007-07-17 2011-11-01 M.N.C. Microsat Networks (Cyprus) Limited Systems and methods for mitigating radio relay link interference in mobile satellite communications
US8010043B2 (en) 2007-07-20 2011-08-30 Viasat, Inc. Capacity maximization for a unicast spot beam satellite system
CN101809893B (zh) * 2007-07-31 2013-09-11 松下航空电子设备公司 通过有小天线的终端使用卫星
US8068827B2 (en) 2007-10-09 2011-11-29 Viasat, Inc. Non-interfering utilization of non-geostationary satellite frequency band for geostationary satellite communication
US9132925B2 (en) * 2009-02-19 2015-09-15 C. Laurence Korb Methods for optimizing the performance, cost and constellation design of satellites for full and partial earth coverage
US9236934B1 (en) 2009-10-16 2016-01-12 Viasat, Inc. Satellite system architecture for coverage areas of disparate demand
EP3138323B1 (fr) * 2014-04-27 2019-01-02 Novelsat Ltd. Transfert entre satellites au moyen d'un modem unique
CN106470486A (zh) * 2015-08-19 2017-03-01 中国移动通信集团公司 一种在高低轨道卫星间的频率复用方法及装置
CN106612140B (zh) * 2015-10-27 2020-04-24 北京信威通信技术股份有限公司 一种卫星移动通信多系统共存的系统
US10277309B2 (en) * 2015-11-19 2019-04-30 Planet Labs, Inc. Predicting radio frequency interference events
US9973268B1 (en) 2016-05-16 2018-05-15 Google Llc Reusing frequencies among high altitude platforms
US10149200B2 (en) * 2016-06-07 2018-12-04 Iridium Satellite Llc Interference mitigation for a satellite network
US11428806B2 (en) * 2019-07-02 2022-08-30 Eagle Technology, Llc Communications system having interference mitigation for non-geostationary weather satellite and associated method
CN113300752B (zh) * 2020-02-24 2022-08-30 大唐移动通信设备有限公司 一种信息处理方法、装置、设备及计算机可读存储介质

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706037A (en) * 1970-02-25 1972-12-12 Bell Telephone Labor Inc Communication satellite system
US3836969A (en) * 1971-10-26 1974-09-17 Rca Corp Geo-synchronous satellites in quasi-equatorial orbits
US3963990A (en) * 1974-02-27 1976-06-15 Communications Satellite Corporation (Comsat) Interference reduction circuit
CA1121488A (fr) * 1978-02-07 1982-04-06 Viktor A. Zhilin Systeme de localisation d'objets mobiles en detresse
US4425639A (en) * 1981-01-12 1984-01-10 Bell Telephone Laboratories, Incorporated Satellite communications system with frequency channelized beams
USRE34410E (en) * 1986-08-14 1993-10-19 Hughes Aircraft Company Antenna system for hybrid communication satellite
US4879711A (en) * 1986-08-14 1989-11-07 Hughes Aircraft Company Satellite communications system employing frequency reuse
DE3644176A1 (de) * 1986-12-23 1988-07-14 Messerschmitt Boelkow Blohm Verfahren zur uebertragung von daten mittels eines geostationaeren satelliten und wenigstens eines subsatelliten
JPS6488270A (en) * 1987-09-30 1989-04-03 Nec Corp Tracking system of moving-body antenna for moving-body satellite communication
FR2628274B1 (fr) * 1988-03-02 1990-08-10 Centre Nat Etd Spatiales Systeme de communications avec des mobiles a l'aide de satellites
US5327572A (en) * 1990-03-06 1994-07-05 Motorola, Inc. Networked satellite and terrestrial cellular radiotelephone systems
EP0611501B1 (fr) * 1991-11-08 1996-12-18 Teledesic Corporation Procede de compensation de faisceaux pour systeme de telecommunications par satellites
US5227802A (en) * 1991-12-23 1993-07-13 Motorola, Inc. Satellite system cell management
FR2695774B1 (fr) * 1992-09-15 1994-10-28 France Telecom Réseau de télécommunications.
US5379320A (en) * 1993-03-11 1995-01-03 Southern California Edison Company Hitless ultra small aperture terminal satellite communication network
US5574968A (en) * 1994-06-01 1996-11-12 Motorola, Inc. Satellite cellular communication methods for performing cell-to-cell handoff
US6400926B1 (en) * 1994-06-22 2002-06-04 Ericsson Ge Mobile Communications Inc. Radiocommunication system using geostationary and non-geostationary satellites
US5774787A (en) * 1994-12-05 1998-06-30 Motorola, Inc. Interference mitigation system for protecting radio astronomy and method of using same
US5641134A (en) * 1994-12-27 1997-06-24 Motorola, Inc. Satellite cellular telephone and data communication system at an inclined orbit
US5697056A (en) * 1995-05-08 1997-12-09 Motorola, Inc. Communication system in which radio subscriber units mitigate interference
FR2737627B1 (fr) * 1995-08-02 1997-10-03 Europ Agence Spatiale Systeme de transmission de signaux radioelectriques via un satellite de communication geostationnaire, notamment pour des communications avec des terminaux mobiles portables

Also Published As

Publication number Publication date
CA2178897A1 (fr) 1997-02-01
US5894590A (en) 1999-04-13
CN1148296A (zh) 1997-04-23
FR2737625A1 (fr) 1997-02-07
DE19629744A1 (de) 1997-02-06
US6088572A (en) 2000-07-11
GB2304003A (en) 1997-03-05
GB9615331D0 (en) 1996-09-04
GB2304003B (en) 2000-04-05

Similar Documents

Publication Publication Date Title
FR2737625B1 (fr) Procede d'attenuation des interferences entre systeme de telecommunications se partageant un meme spectre de frequence et stations terrestres appliquant ce procede
HK1010440A1 (en) Multiple access method for common radio channel.
FI952844A (fi) Menetelmä kanavanvaihdon parantamiseksi
GB2249922B (en) Dynamic channel allocation method
GB2289599B (en) Adaptive method for allocating calls
IL119347A0 (en) Method for identifying lymph nodes
FI962518A0 (fi) Menetelmä matkaviestimen aiheuttamien häiriöiden eMenetelmä matkaviestimen aiheuttamien häiriöiden eliminoimiseksi liminoimiseksi
HUP9801986A3 (en) Method and arrangement for the telecommunication by electromagnetic waves
IL115660A0 (en) Method for forming polymers
IL115784A (en) Method for forming emulsions
DE69429715D1 (de) Empfänger für spreizspektrumübertragung
EE03727B1 (et) Tihendisüsteem raadiohäiringute isoleerimiseks
FR2737370B1 (fr) Procede de communication cryptographique
EP0687074A3 (fr) Procédé de communication à spectre étalé
DE69636468D1 (de) Empfänger für Spread-Spectrum-Signale
DE69119315T2 (de) Interferenzverminderung für kompatibles Fernsehsystem mit breitem Spektrum
IL118085A0 (en) Method for the management of radio resources during the transmission of packets
GB9625811D0 (en) Method and apparatus for spectrum management
HUP9900066A3 (en) Method for processing pwm waves
AU4901896A (en) Method for treating multiple sclerosis
AU7452396A (en) An enhanced channel allocation process
IL130531A0 (en) Method for treating glaucoma
GB2332596A9 (en) Method for predicting interference
GB2301995B (en) Interproceesor communication method
AU4703896A (en) Method for treating multiple sclerosis

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
PLFP Fee payment

Year of fee payment: 20