WO1995018492A1 - Satellite communications system - Google Patents

Satellite communications system Download PDF

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Publication number
WO1995018492A1
WO1995018492A1 PCT/RU1994/000285 RU9400285W WO9518492A1 WO 1995018492 A1 WO1995018492 A1 WO 1995018492A1 RU 9400285 W RU9400285 W RU 9400285W WO 9518492 A1 WO9518492 A1 WO 9518492A1
Authority
WO
WIPO (PCT)
Prior art keywords
communications
repeater
shaper
antenna
unit
Prior art date
Application number
PCT/RU1994/000285
Other languages
French (fr)
Russian (ru)
Inventor
Konstantin Vladimirovich Cherevkov
Nikolai Alexandrovich Morozov
Vladimir Alexeevch Serebrennikov
Vladimir Alexandrovich Kotyaev
Alexandr Ivanovich Ostany
Alexandr Lvovich Ginzburg
Original Assignee
Network And Space Technologies, 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 Network And Space Technologies, Inc. filed Critical Network And Space Technologies, Inc.
Publication of WO1995018492A1 publication Critical patent/WO1995018492A1/en

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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
    • H04B7/18528—Satellite systems for providing two-way communications service to a network of fixed stations, i.e. fixed satellite service or very small aperture terminal [VSAT] system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The proposed satellite communications system comprises ground stations, one of which acts as the communications centre, and a repeater serving an artificial earth satellite. Each ground station contains a data input/output unit (1) which connects the subscriber unit and is connected in the appropriate way to a shaper (19) which shapes the request frame for establishing communications, a frequency synthesiser (2), a unit (11) for switching the ground station from one operating mode to another when service signals and subscriber data are received and transmitted and based on a processor, and controlling the frequency synthesiser (2) and shaper (19) of the request frame for the establishment of communications. Once processed in the receiving circuit, the communication establishment request interrogation signals and the characteristics of the body of data to be transmitted enter the unit (11) from the communications centre. From the shaper (19) the signal, after being processed in the receiving circuit, is transmitted via the antenna (7) to the repeater. The repeater is divided into N circuits and is provided with N multiple beam antennas (12) which produce fixed two-way beams. After undergoing filtering in the filters (14.1.1...14.1.N) and level adjustment in the attenuators (15.1.1...15.1.N), the signals combine at N summators. The group signal after conversion is emitted by the appropriate antenna (12.1...12.N) in the direction of one of the areas of coverage; the value of N depends on the ratio of the angular dimensions of the common area of coverage to the beam width of each antenna of the repeater circuit. This design of a satellite communications system maximises the penetrating power while reducing power consumption and reducing bandwidth through regulation of communications.
PCT/RU1994/000285 1993-12-27 1994-12-21 Satellite communications system WO1995018492A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU93058198 1993-12-27
RU9393058198A RU2054804C1 (en) 1993-12-27 1993-12-27 Satellite communication system

Publications (1)

Publication Number Publication Date
WO1995018492A1 true WO1995018492A1 (en) 1995-07-06

Family

ID=20151118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1994/000285 WO1995018492A1 (en) 1993-12-27 1994-12-21 Satellite communications system

Country Status (2)

Country Link
RU (1) RU2054804C1 (en)
WO (1) WO1995018492A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042720A1 (en) * 1996-05-09 1997-11-13 Lg Products Ab Channel-selective repeater for mobile telephony

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1072274A1 (en) * 1982-01-05 1984-02-07 Предприятие П/Я А-7956 Satellite communication system
US4450582A (en) * 1981-09-14 1984-05-22 Vitalink Communications Corporation Method and apparatus for increasing the capacity of a satellite transponder by reuse of bandwidth
US4456988A (en) * 1981-01-29 1984-06-26 Kokusai Denshin Denwa Kabushiki Kaisha Satellite repeater
US4622557A (en) * 1984-10-31 1986-11-11 The United States Of America As Represented By The Secretary Of The Air Force Transdigitizer for relaying signals from global positioning system (GPS) satellites

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456988A (en) * 1981-01-29 1984-06-26 Kokusai Denshin Denwa Kabushiki Kaisha Satellite repeater
US4450582A (en) * 1981-09-14 1984-05-22 Vitalink Communications Corporation Method and apparatus for increasing the capacity of a satellite transponder by reuse of bandwidth
SU1072274A1 (en) * 1982-01-05 1984-02-07 Предприятие П/Я А-7956 Satellite communication system
US4622557A (en) * 1984-10-31 1986-11-11 The United States Of America As Represented By The Secretary Of The Air Force Transdigitizer for relaying signals from global positioning system (GPS) satellites

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042720A1 (en) * 1996-05-09 1997-11-13 Lg Products Ab Channel-selective repeater for mobile telephony

Also Published As

Publication number Publication date
RU2054804C1 (en) 1996-02-20

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