GB2341762B - Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof - Google Patents

Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof

Info

Publication number
GB2341762B
GB2341762B GB9927941A GB9927941A GB2341762B GB 2341762 B GB2341762 B GB 2341762B GB 9927941 A GB9927941 A GB 9927941A GB 9927941 A GB9927941 A GB 9927941A GB 2341762 B GB2341762 B GB 2341762B
Authority
GB
United Kingdom
Prior art keywords
frequency spectrum
communications systems
based communications
common frequency
sharing common
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.)
Expired - Fee Related
Application number
GB9927941A
Other versions
GB9927941D0 (en
GB2341762A (en
Inventor
Gregory Barton Vatt
Dennis Paul Diekelman
John E Major
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
Priority claimed from US08/509,677 external-priority patent/US5894590A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of GB9927941D0 publication Critical patent/GB9927941D0/en
Publication of GB2341762A publication Critical patent/GB2341762A/en
Application granted granted Critical
Publication of GB2341762B publication Critical patent/GB2341762B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1007—Communications satellites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1085—Swarms and constellations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/242—Orbits and trajectories
    • 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
    • H04B7/18513—Transmission in a satellite or space-based system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
    • 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
    • H04B7/18563—Arrangements for interconnecting multiple systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
GB9927941A 1995-07-31 1996-07-22 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof Expired - Fee Related GB2341762B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/509,677 US5894590A (en) 1995-07-31 1995-07-31 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof
GB9615331A GB2304003B (en) 1995-07-31 1996-07-22 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof

Publications (3)

Publication Number Publication Date
GB9927941D0 GB9927941D0 (en) 2000-01-26
GB2341762A GB2341762A (en) 2000-03-22
GB2341762B true GB2341762B (en) 2000-08-09

Family

ID=26309733

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9927941A Expired - Fee Related GB2341762B (en) 1995-07-31 1996-07-22 Independent satellite-based communications systems sharing common frequency spectrum and method of operation thereof

Country Status (1)

Country Link
GB (1) GB2341762B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1168672A3 (en) * 2000-06-21 2004-01-02 Northrop Grumman Corporation Multiple satellite beam laydown with switchable bands for hopped satellite downlink
US8078141B2 (en) 2006-01-18 2011-12-13 Overhorizon (Cyprus) Plc Systems and methods for collecting and processing satellite communications network usage information
US8326217B2 (en) 2006-01-18 2012-12-04 Overhorizon (Cyprus) Plc Systems and methods for satellite communications with mobile terrestrial terminals
WO2007082722A1 (en) * 2006-01-18 2007-07-26 M.N.C. Microsat Networks (Cyprus) Limited Systems and methods for communicating with satellites via non-compliant antennas
US8713324B2 (en) 2006-01-18 2014-04-29 Overhorizon (Cyprus) Plc Systems and methods for tracking mobile terrestrial terminals for satellite communications
US7962134B2 (en) 2006-01-18 2011-06-14 M.N.C. Microsat Networks (Cyprus) Limited Systems and methods for communicating with satellites via non-compliant antennas
US8948080B2 (en) 2007-07-17 2015-02-03 Overhorizon (Cyprus) Plc Methods comprising satellites having a regenerative payload, onboard computer, payload interface and interference elimination system
US8050628B2 (en) 2007-07-17 2011-11-01 M.N.C. Microsat Networks (Cyprus) Limited Systems and methods for mitigating radio relay link interference in mobile satellite communications

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549220A2 (en) * 1991-12-23 1993-06-30 Motorola, Inc. Satellite system cell management

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0549220A2 (en) * 1991-12-23 1993-06-30 Motorola, Inc. Satellite system cell management

Also Published As

Publication number Publication date
GB9927941D0 (en) 2000-01-26
GB2341762A (en) 2000-03-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010722