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WO2004040820A3 - Feeder link configurations to support layered modulation - Google Patents

Feeder link configurations to support layered modulation Download PDF

Info

Publication number
WO2004040820A3
WO2004040820A3 PCT/US2003/033255 US0333255W WO2004040820A3 WO 2004040820 A3 WO2004040820 A3 WO 2004040820A3 US 0333255 W US0333255 W US 0333255W WO 2004040820 A3 WO2004040820 A3 WO 2004040820A3
Authority
WO
WIPO (PCT)
Prior art keywords
feeder link
link
layered modulation
feeder
spot beam
Prior art date
Application number
PCT/US2003/033255
Other languages
French (fr)
Other versions
WO2004040820A2 (en
Inventor
Paul R Anderson
Joseph Santoru
Ernest C Chen
Original Assignee
Directv Group Inc
Paul R Anderson
Joseph Santoru
Ernest C Chen
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
Priority claimed from US09/844,401 external-priority patent/US7209524B2/en
Priority to AU2003284297A priority Critical patent/AU2003284297A1/en
Priority to AT03776477T priority patent/ATE453970T1/en
Priority to US10/532,631 priority patent/US7423987B2/en
Priority to CA2503432A priority patent/CA2503432C/en
Application filed by Directv Group Inc, Paul R Anderson, Joseph Santoru, Ernest C Chen filed Critical Directv Group Inc
Priority to EP03776477A priority patent/EP1579601B1/en
Priority to DE60330806T priority patent/DE60330806D1/en
Publication of WO2004040820A2 publication Critical patent/WO2004040820A2/en
Publication of WO2004040820A3 publication Critical patent/WO2004040820A3/en
Priority to IL168228A priority patent/IL168228A/en
Priority to NO20052485A priority patent/NO335059B1/en
Priority to US12/190,526 priority patent/US8259641B2/en
Priority to IL202384A priority patent/IL202384A/en
Priority to US13/600,883 priority patent/US8804605B2/en

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
    • H04B7/18515—Transmission equipment in satellites or space-based relays

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Systems and methods are disclosed for feeder link configurations to layered modulation. One feeder link system (13A) employs feeder link spot beam to antennas in distinct coverage areas to enable frequency reuse. In this system 1300, the uplink signals (116) comprise two distinct feeder link signals (1302A, 1302B). Feeder link spot beam antennas (1304A, 1304B) can be employed on the satellite (108) to reuse feeder link spectrum in order to not exceed bandwidth of the layered modulation on the downlink. The feeder link system (1300) includes a first feeder link antenna (1306A) and a second feeder link antenna (1306B) transmitting the first link signal at first frequency and the second link signal at second frequency respectively. Although the two feeder link frequencies are in substantially the same frequency band, the use of spot beam antennas (1304, 1304B) with distinct coverage areas (1308A, 1308B) prevents the first and second feeder link signals (1304A, 1304B) from interfering.
PCT/US2003/033255 2001-04-27 2003-10-20 Feeder link configurations to support layered modulation WO2004040820A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE60330806T DE60330806D1 (en) 2002-10-25 2003-10-20 CONFIGURATIONS OF SUPPLY CONNECTIONS TO SUPPORT A SHOWN MODULATION FOR DIGITAL SIGNALS
EP03776477A EP1579601B1 (en) 2002-10-25 2003-10-20 Feeder link configurations to support layererd modulation for digital signals
AT03776477T ATE453970T1 (en) 2002-10-25 2003-10-20 FEED CONNECTION CONFIGURATIONS TO SUPPORT LAYERED MODULATION FOR DIGITAL SIGNALS
US10/532,631 US7423987B2 (en) 2001-04-27 2003-10-20 Feeder link configurations to support layered modulation for digital signals
CA2503432A CA2503432C (en) 2002-10-25 2003-10-20 Feeder link configurations to support layered modulation for digital signals
AU2003284297A AU2003284297A1 (en) 2002-10-25 2003-10-20 Feeder link configurations to support layered modulation
IL168228A IL168228A (en) 2002-10-25 2005-04-25 Feeder link configurations to support layered modulation for digital signals
NO20052485A NO335059B1 (en) 2002-10-25 2005-05-24 Meeting connection configurations to support layered modulation for digital signals.
US12/190,526 US8259641B2 (en) 2001-04-27 2008-08-12 Feeder link configurations to support layered modulation for digital signals
IL202384A IL202384A (en) 2002-10-25 2009-11-26 Feeder link configurations to support layered modulation for digital signals
US13/600,883 US8804605B2 (en) 2001-04-27 2012-08-31 Feeder link configurations to support layered modulation for digital signals

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/844,401 US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals
US42132802P 2002-10-25 2002-10-25
US60/421,328 2002-10-25

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/844,401 Continuation-In-Part US7209524B2 (en) 2001-04-27 2001-04-27 Layered modulation for digital signals

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10532631 A-371-Of-International 2003-10-20
US12/190,526 Division US8259641B2 (en) 2001-04-27 2008-08-12 Feeder link configurations to support layered modulation for digital signals

Publications (2)

Publication Number Publication Date
WO2004040820A2 WO2004040820A2 (en) 2004-05-13
WO2004040820A3 true WO2004040820A3 (en) 2004-07-15

Family

ID=32685093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033255 WO2004040820A2 (en) 2001-04-27 2003-10-20 Feeder link configurations to support layered modulation

Country Status (2)

Country Link
TW (1) TWI309515B (en)
WO (1) WO2004040820A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI523449B (en) 2012-03-28 2016-02-21 Mitsubishi Electric Corp A communication device, a communication method, and a recording medium
CN106572338A (en) * 2016-07-21 2017-04-19 李燕如 LNB (Low-noise block down-converter) module

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5555257A (en) * 1994-01-11 1996-09-10 Ericsson Ge Mobile Communications Inc. Cellular/satellite communications system with improved frequency re-use
US5642358A (en) * 1994-04-08 1997-06-24 Ericsson Inc. Multiple beamwidth phased array
US20020041575A1 (en) * 2000-08-02 2002-04-11 Mobile Satellite Ventures Llc Coordinated satellite-terrestrial frequency reuse
US20020181604A1 (en) * 2001-04-27 2002-12-05 Chen Ernest C. Layered modulation for digital signals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5555257A (en) * 1994-01-11 1996-09-10 Ericsson Ge Mobile Communications Inc. Cellular/satellite communications system with improved frequency re-use
US5848060A (en) * 1994-01-11 1998-12-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5642358A (en) * 1994-04-08 1997-06-24 Ericsson Inc. Multiple beamwidth phased array
US20020041575A1 (en) * 2000-08-02 2002-04-11 Mobile Satellite Ventures Llc Coordinated satellite-terrestrial frequency reuse
US20020181604A1 (en) * 2001-04-27 2002-12-05 Chen Ernest C. Layered modulation for digital signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1579601A4 *

Also Published As

Publication number Publication date
TW200423585A (en) 2004-11-01
TWI309515B (en) 2009-05-01
WO2004040820A2 (en) 2004-05-13

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