WO2000021216A3 - Beam overloading solution for overlapped fixed beams - Google Patents

Beam overloading solution for overlapped fixed beams Download PDF

Info

Publication number
WO2000021216A3
WO2000021216A3 PCT/US1999/018285 US9918285W WO0021216A3 WO 2000021216 A3 WO2000021216 A3 WO 2000021216A3 US 9918285 W US9918285 W US 9918285W WO 0021216 A3 WO0021216 A3 WO 0021216A3
Authority
WO
WIPO (PCT)
Prior art keywords
beams
fixed
earth
cluster
overloading
Prior art date
Application number
PCT/US1999/018285
Other languages
French (fr)
Other versions
WO2000021216A2 (en
Inventor
Michael Delachapelle
David C Morse
Leonard Jon Quadracci
Original Assignee
Boeing Co
Michael Delachapelle
David C Morse
Leonard Jon Quadracci
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 Boeing Co, Michael Delachapelle, David C Morse, Leonard Jon Quadracci filed Critical Boeing Co
Priority to AU62386/99A priority Critical patent/AU6238699A/en
Publication of WO2000021216A2 publication Critical patent/WO2000021216A2/en
Publication of WO2000021216A3 publication Critical patent/WO2000021216A3/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
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access
    • 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
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection

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)

Abstract

The present invention relates to a method for allocating beams transmitted from, and received at, positions in Earth orbit for communicating with portable, mobile and fixed terminals and gateways by forming footprints using fixed beam antennas on board satellites flying in orbits below geosynchronous altitude. The footprints illuminate an Earth-fixed grid, including Earth-fixed cells. The spacing of the beams is reduced to create a cluster of beams which operates as a single entity wherein a ratio of beams is an integer multiple n of an amount of down-converters. Responsibility for communication with the target Earth-fixed cell is switched from a first of the cluster of beams to a second of the cluster of beams when the target Earth-fixed cell is within an overlap region shared by the first and the second of the cluster of beams.
PCT/US1999/018285 1998-08-11 1999-08-11 Beam overloading solution for overlapped fixed beams WO2000021216A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62386/99A AU6238699A (en) 1998-08-11 1999-08-11 Beam overloading solution for overlapped fixed beams

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9614998P 1998-08-11 1998-08-11
US60/096,149 1998-08-11

Publications (2)

Publication Number Publication Date
WO2000021216A2 WO2000021216A2 (en) 2000-04-13
WO2000021216A3 true WO2000021216A3 (en) 2000-07-06

Family

ID=22255817

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/018285 WO2000021216A2 (en) 1998-08-11 1999-08-11 Beam overloading solution for overlapped fixed beams

Country Status (2)

Country Link
AU (1) AU6238699A (en)
WO (1) WO2000021216A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426386B1 (en) 2000-06-21 2008-09-16 Northrop Grumman Corporation Beam laydown for hopped satellite downlink with adaptable duty cycle
US7277730B2 (en) 2002-12-26 2007-10-02 Nokia Corporation Method of allocating radio resources in telecommunication system, and telecommunication system
US10588029B1 (en) 2018-11-17 2020-03-10 Hughes Networks Systems, Llc. System and method for pointing error resistant reuse
US20210242933A1 (en) 2019-11-07 2021-08-05 Qualcomm Incorporated Systems and methods for handover of mobile devices, radio cells and space vehicles for mobile satellite wireless access
US11696106B2 (en) 2019-11-07 2023-07-04 Qualcomm Incorporated Configuration of fixed tracking areas and fixed cells for a 5G satellite rat
US11811488B2 (en) 2019-11-07 2023-11-07 Qualcomm Incorporated Systems and methods for support of a 5G satellite radio access technology
WO2021092503A1 (en) * 2019-11-07 2021-05-14 Qualcomm Incorporated Systems and methods for supporting fixed tracking areas and fixed cells for mobile satellite wireless access

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0805567A2 (en) * 1996-04-30 1997-11-05 Trw Inc. Method for balancing demand between satellites in a telecommunications system
US5736959A (en) * 1991-10-28 1998-04-07 Teledesic Corporation Earth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5386953A (en) * 1991-11-08 1995-02-07 Calling Communications Corporation Spacecraft designs for satellite communication system
US5875180A (en) * 1997-02-06 1999-02-23 Globalstar L.P. Satellite telephone interference avoidance system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736959A (en) * 1991-10-28 1998-04-07 Teledesic Corporation Earth-fixed cell beam management for satellite communication system using dielectic lens-focused scanning beam antennas
EP0805567A2 (en) * 1996-04-30 1997-11-05 Trw Inc. Method for balancing demand between satellites in a telecommunications system

Also Published As

Publication number Publication date
AU6238699A (en) 2000-04-26
WO2000021216A2 (en) 2000-04-13

Similar Documents

Publication Publication Date Title
KR100404824B1 (en) Cost-effective mobile satellite communications system deployed on geostationary tracks
ITRM20000279A1 (en) UNIVERSAL REPLACEMENT SATELLITE FOR COMMUNICATIONS.
Hasan et al. Ka band enabling technologies for high throughput satellite (HTS) communications
EP1139585A3 (en) Communication system with satellites on an elliptical sub-geostationary orbit
EP0575678B1 (en) Medium-earth-altitude satellite-based cellular telecommunications system
EP4236085A3 (en) High throughput fractionated satellites
RU2160963C2 (en) Radio communication system using geostationary and non- geostationary satellites
WO2000021216A3 (en) Beam overloading solution for overlapped fixed beams
EP0795928A3 (en) Antenna with single or double reflector, with shaped beams and linear polarisation
Fujino et al. Satellite terrestrial integrated mobile communication system as a disaster countermeasure
Reudink Communications: Spot beams promise satellite communication breakthrough: Focused antenna beams with frequencies accessed by time division can mean higher uplink power and more powerful communication service
JPH0537431A (en) Antenna diversity system for satellite communication
Sultan et al. Application of an innovative communication payload system optimization to civil and military mobile satellites
Kanatas et al. Radio wave propagation and channel modeling for earth–space systems
Ilčev et al. Ground Communication Segment
Haas et al. The DSCS III satellite-A defense communication system for the 80's
Stuart et al. Revolutionary next generation satellite communications architectures and systems
Golovanevsky et al. Globalstar link verification
COIRAULT et al. Aramis- An advanced payload concept for the mobile satellite service
Covault Platform designed for numerous uses
van t'Klooster et al. Antenna sub-system for Meteosat second generation satellites: modeling tools and needs
Miura et al. AERONAUTICAL-MARITIME ENGINEERING SATELLITE (AMES) PROGRAM OF JAPAN
Bagwell et al. The role of technology in influencing future civil communications satellites
Barnes et al. The ARAMIS payload (satellite communications)
Demirev SCP-RPSC-the key technology in the next generation steerable lines for satellite communications

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase