JPH05501489A - 可変ビーム面積を有する信号ビームを備えた衛星信号システム - Google Patents

可変ビーム面積を有する信号ビームを備えた衛星信号システム

Info

Publication number
JPH05501489A
JPH05501489A JP2515018A JP51501890A JPH05501489A JP H05501489 A JPH05501489 A JP H05501489A JP 2515018 A JP2515018 A JP 2515018A JP 51501890 A JP51501890 A JP 51501890A JP H05501489 A JPH05501489 A JP H05501489A
Authority
JP
Japan
Prior art keywords
signal
predetermined
satellite
antenna
receiver
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.)
Pending
Application number
JP2515018A
Other languages
English (en)
Japanese (ja)
Inventor
デイビス，ウォルター・リー
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 JPH05501489A publication Critical patent/JPH05501489A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/022—One-way selective calling networks, e.g. wide area paging
    • 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
    • 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
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Radio Relay Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2515018A 1989-11-06 1990-10-15 可変ビーム面積を有する信号ビームを備えた衛星信号システム Pending JPH05501489A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43226889A 1989-11-06 1989-11-06
US432,268 1989-11-06

Publications (1)

Publication Number Publication Date
JPH05501489A true JPH05501489A (ja) 1993-03-18

Family

ID=23715441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2515018A Pending JPH05501489A (ja) 1989-11-06 1990-10-15 可変ビーム面積を有する信号ビームを備えた衛星信号システム

Country Status (6)

Country Link
EP (1) EP0504151A4 (fr)
JP (1) JPH05501489A (fr)
KR (1) KR950012831B1 (fr)
AU (1) AU6616890A (fr)
CA (1) CA2067809A1 (fr)
WO (1) WO1991007024A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5227802A (en) * 1991-12-23 1993-07-13 Motorola, Inc. Satellite system cell management
US5396643A (en) * 1992-08-24 1995-03-07 Motorola, Inc. Geographic-area selective low-earth satellite-based paging broadcast system and method
US5943324A (en) * 1994-01-11 1999-08-24 Ericsson, Inc. Methods and apparatus for mobile station to mobile station communications in a mobile satellite communication system
JP2000506689A (ja) * 1995-12-29 2000-05-30 エリクソン インコーポレイテッド 時間圧縮トランスポンダ
US9275690B2 (en) 2012-05-30 2016-03-01 Tahoe Rf Semiconductor, Inc. Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof
US9509351B2 (en) 2012-07-27 2016-11-29 Tahoe Rf Semiconductor, Inc. Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver
US9780449B2 (en) 2013-03-15 2017-10-03 Integrated Device Technology, Inc. Phase shift based improved reference input frequency signal injection into a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation to reduce a phase-steering requirement during beamforming
US9531070B2 (en) 2013-03-15 2016-12-27 Christopher T. Schiller Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof
US9184498B2 (en) 2013-03-15 2015-11-10 Gigoptix, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through fine control of a tunable frequency of a tank circuit of a VCO thereof
US9722310B2 (en) 2013-03-15 2017-08-01 Gigpeak, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through frequency multiplication
US9837714B2 (en) 2013-03-15 2017-12-05 Integrated Device Technology, Inc. Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through a circular configuration thereof
US9666942B2 (en) 2013-03-15 2017-05-30 Gigpeak, Inc. Adaptive transmit array for beam-steering
US9716315B2 (en) 2013-03-15 2017-07-25 Gigpeak, Inc. Automatic high-resolution adaptive beam-steering

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1940958B2 (de) * 1968-08-15 1971-11-04 Zeitmultiplex nachrichtensystem
US3772475A (en) * 1972-08-28 1973-11-13 Communications Satellite Corp Satellite communications system with super frame format and frame segmented signalling
US4145658A (en) * 1977-06-03 1979-03-20 Bell Telephone Laboratories, Incorporated Method and apparatus for cancelling interference between area coverage and spot coverage antenna beams
US4145573A (en) * 1977-06-13 1979-03-20 Bell Telephone Laboratories, Incorporated Digital satellite system and method for serving users of differing capacities
US4188578A (en) * 1978-05-19 1980-02-12 Bell Telephone Laboratories, Incorporated Satellite communication system which concurrently transmits a scanning spot beam and a plurality of fixed spot beams
US4268831A (en) * 1979-04-30 1981-05-19 Sperry Corporation Antenna for scanning a limited spatial sector
US4489325A (en) * 1983-09-02 1984-12-18 Bauck Jerald L Electronically scanned space fed antenna system and method of operation thereof
DE3375351D1 (en) * 1983-10-21 1988-02-18 Ant Nachrichtentech Process for the transmission of information services by satellites
US4689625A (en) * 1984-11-06 1987-08-25 Martin Marietta Corporation Satellite communications system and method therefor
US4972151A (en) * 1985-10-01 1990-11-20 Hughes Aircraft Company Steered-beam satellite communication system
DE3706240A1 (de) * 1987-02-26 1988-09-08 Ant Nachrichtentech Verfahren und funkrufsystem zum selektiven uebermitteln von rufen an mobile teilnehmer

Also Published As

Publication number Publication date
EP0504151A1 (fr) 1992-09-23
AU6616890A (en) 1991-05-31
KR950012831B1 (ko) 1995-10-21
KR920704453A (ko) 1992-12-19
WO1991007024A1 (fr) 1991-05-16
EP0504151A4 (en) 1992-12-02
CA2067809A1 (fr) 1991-05-07

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