WO2005034361A3 - Intra- and/or inter-system interference reducing systems and methods for satellite communications systems - Google Patents

Intra- and/or inter-system interference reducing systems and methods for satellite communications systems Download PDF

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Publication number
WO2005034361A3
WO2005034361A3 PCT/US2004/022960 US2004022960W WO2005034361A3 WO 2005034361 A3 WO2005034361 A3 WO 2005034361A3 US 2004022960 W US2004022960 W US 2004022960W WO 2005034361 A3 WO2005034361 A3 WO 2005034361A3
Authority
WO
WIPO (PCT)
Prior art keywords
satellite
systems
intra
inter
methods
Prior art date
Application number
PCT/US2004/022960
Other languages
French (fr)
Other versions
WO2005034361A2 (en
Inventor
Peter D Karabinis
Gary G Churan
Santanu Dutta
Dunmin Zheng
Original Assignee
Mobile Satellite Ventures L P
Peter D Karabinis
Gary G Churan
Santanu Dutta
Dunmin Zheng
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 Mobile Satellite Ventures L P, Peter D Karabinis, Gary G Churan, Santanu Dutta, Dunmin Zheng filed Critical Mobile Satellite Ventures L P
Priority to AU2004306356A priority Critical patent/AU2004306356B2/en
Priority to BRPI0413040-5A priority patent/BRPI0413040A/en
Priority to CA2534079A priority patent/CA2534079C/en
Priority to AT04809498T priority patent/ATE542311T1/en
Priority to CN2004800279599A priority patent/CN1860804B/en
Priority to EP04809498A priority patent/EP1649707B1/en
Priority to JP2006521884A priority patent/JP4695593B2/en
Publication of WO2005034361A2 publication Critical patent/WO2005034361A2/en
Publication of WO2005034361A3 publication Critical patent/WO2005034361A3/en
Priority to IL173311A priority patent/IL173311A/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
    • H04B7/1851—Systems using a satellite or space-based relay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects

Abstract

A first radio signal is received via a first satellite reception path, for example, an antenna or spot beam, which serves a satellite cell. The received first radio signal includes a desired satellite uplink signal transmitted from a first source using a frequency assigned to the satellite cell and an interfering signal transmitted from a second source using the frequency assigned to the satellite cell. A second radio signal is received via a second satellite reception path, for example, via another antenna or spot beam of the system and/or via a satellite antenna beam of another system. The second radio signal includes the interfering signal. The first and second radio signals are processed to recover the desired satellite uplink signal.
PCT/US2004/022960 2003-07-30 2004-07-16 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems WO2005034361A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AU2004306356A AU2004306356B2 (en) 2003-07-30 2004-07-16 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
BRPI0413040-5A BRPI0413040A (en) 2003-07-30 2004-07-16 method of operating a satellite radio telephone communication system and operating a first satellite radio telephone communication system to reduce interference from a second satellite communication system, system, and
CA2534079A CA2534079C (en) 2003-07-30 2004-07-16 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
AT04809498T ATE542311T1 (en) 2003-07-30 2004-07-16 INTRA- AND/OR INTER-SYSTEM INTERFERENCE REDUCTION SYSTEMS AND METHODS FOR SATELLITE COMMUNICATION SYSTEMS
CN2004800279599A CN1860804B (en) 2003-07-30 2004-07-16 Intra-and/or inter-system interference reducing systems and methods for satellite communications systems
EP04809498A EP1649707B1 (en) 2003-07-30 2004-07-16 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems
JP2006521884A JP4695593B2 (en) 2003-07-30 2004-07-16 In-system and / or inter-system interference reduction system and method of satellite communication system
IL173311A IL173311A (en) 2003-07-30 2006-01-23 Intra-and/or inter-system interference reducing systems and methods for satellite communications systems

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US49099303P 2003-07-30 2003-07-30
US60/490,993 2003-07-30
US10/890,758 US7340213B2 (en) 2003-07-30 2004-07-14 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems

Publications (2)

Publication Number Publication Date
WO2005034361A2 WO2005034361A2 (en) 2005-04-14
WO2005034361A3 true WO2005034361A3 (en) 2005-08-04

Family

ID=34138687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/022960 WO2005034361A2 (en) 2003-07-30 2004-07-16 Intra- and/or inter-system interference reducing systems and methods for satellite communications systems

Country Status (11)

Country Link
US (1) US7340213B2 (en)
EP (1) EP1649707B1 (en)
JP (1) JP4695593B2 (en)
KR (1) KR101098007B1 (en)
CN (1) CN1860804B (en)
AT (1) ATE542311T1 (en)
AU (1) AU2004306356B2 (en)
BR (1) BRPI0413040A (en)
CA (1) CA2534079C (en)
IL (1) IL173311A (en)
WO (1) WO2005034361A2 (en)

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