CA2092744A1 - Spectrum recovery apparatus and method therefor - Google Patents

Spectrum recovery apparatus and method therefor

Info

Publication number
CA2092744A1
CA2092744A1 CA002092744A CA2092744A CA2092744A1 CA 2092744 A1 CA2092744 A1 CA 2092744A1 CA 002092744 A CA002092744 A CA 002092744A CA 2092744 A CA2092744 A CA 2092744A CA 2092744 A1 CA2092744 A1 CA 2092744A1
Authority
CA
Canada
Prior art keywords
cell
cells
communications
controller
active
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.)
Granted
Application number
CA002092744A
Other languages
French (fr)
Other versions
CA2092744C (en
Inventor
Gregory Barton Vatt
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.)
CDC Propriete Intellectuelle
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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of CA2092744A1 publication Critical patent/CA2092744A1/en
Application granted granted Critical
Publication of CA2092744C publication Critical patent/CA2092744C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B7/1853—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

Abstract

A controller operates with a cellular communication system that transmits primary communications. The controller recovers a portion of the spectrum assigned to the primary communications for reuse in transmitting secondary communications. The primary communications' cells move in a predictable manner relative to a site at which the controller is located. The controller monitors primary communications to determine the current active cell.
The identities of past active cells are saved so that a historical sequence of active cells is available. A
map defining the relative orientation of cells is used with the historical sequence information to predict tracks through newly entered active cells. Based on this prediction, a recoverable cell is selected.
Communication link parameters of the recoverable cell are used for secondary communications. The identity of the recoverable cell changes in response to changes in the identity of the active cell.
CA002092744A 1992-05-11 1993-03-26 Spectrum recovery apparatus and method therefor Expired - Lifetime CA2092744C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/881,120 1992-05-11
US07/881,120 US5423084A (en) 1992-05-11 1992-05-11 Spectrum recovery apparatus and method therefor

Publications (2)

Publication Number Publication Date
CA2092744A1 true CA2092744A1 (en) 1993-11-12
CA2092744C CA2092744C (en) 2001-12-04

Family

ID=25377825

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002092744A Expired - Lifetime CA2092744C (en) 1992-05-11 1993-03-26 Spectrum recovery apparatus and method therefor

Country Status (7)

Country Link
US (1) US5423084A (en)
EP (1) EP0569693B1 (en)
JP (1) JP3077727B2 (en)
AT (1) ATE206574T1 (en)
CA (1) CA2092744C (en)
DE (1) DE69330849T2 (en)
RU (1) RU2137304C1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0787424B2 (en) * 1993-06-30 1995-09-20 日本電気株式会社 Burst signal transmission system
US5579536A (en) * 1994-06-13 1996-11-26 Motorola, Inc. Method and apparatus for establishing communication links between non-stationary communication units
US5561838A (en) * 1994-07-01 1996-10-01 Motorola, Inc. Method and apparatus for satellite handoff parameters prediction in an orbiting communications system
EP1104118B1 (en) * 1994-12-13 2005-05-25 NTT DoCoMo, Inc. Power control in mobile satellite communication system
US5594940A (en) * 1994-12-22 1997-01-14 Motorola, Inc. Statistically robust traffic modeling method and apparatus
US5867765A (en) * 1995-03-31 1999-02-02 Telefonaktiebolaget Lm Ericsson Non-geostationary satellite mobile communication system integration with network principles for terrestrial cellular
US5920803A (en) * 1995-09-05 1999-07-06 Motorola, Inc. Method and apparatus for message delivery in a communication system having orbiting transmitters
US5906337A (en) * 1995-10-03 1999-05-25 Trw Inc. Multiple altitude satellite relay system and method
US5781912A (en) * 1996-12-19 1998-07-14 Oracle Corporation Recoverable data replication between source site and destination site without distributed transactions
US6745028B1 (en) * 1997-07-16 2004-06-01 Ico Services Limited Satellite mobile telephone cell departure prediction
WO2000035233A1 (en) * 1998-12-07 2000-06-15 Mitsubishi Denki Kabushiki Kaisha Communication line selecting method and mobile communication device
US6859652B2 (en) 2000-08-02 2005-02-22 Mobile Satellite Ventures, Lp Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis
WO2002011302A2 (en) 2000-08-02 2002-02-07 Mobiles Satellite Ventures Lp Coordinated satellite-terrestrial frequency reuse
US7792488B2 (en) 2000-12-04 2010-09-07 Atc Technologies, Llc Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength
GB0715171D0 (en) 2007-08-03 2007-09-12 Enigma Diagnostics Ltd Sample processor
PL2206256T3 (en) * 2007-10-09 2018-10-31 Viasat, Inc. Non-interfering utilization of non-geostationary satellite frequency band for geostationary satellite communication
CN104168618B (en) * 2013-05-17 2019-10-15 中兴通讯股份有限公司 A kind of cell switching method, system and relevant apparatus
US9967792B2 (en) 2015-03-16 2018-05-08 Space Systems/Loral, Llc Communication system with multi band gateway
CN114598378B (en) * 2022-02-25 2023-08-15 中国人民解放军63921部队 Spacecraft load data distribution device and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578815A (en) * 1983-12-07 1986-03-25 Motorola, Inc. Wide area coverage radio communication system and method
DE3706240A1 (en) * 1987-02-26 1988-09-08 Ant Nachrichtentech Method and radio paging system for selectively transmitting calls to mobile subscribers
US5019317A (en) * 1989-05-24 1991-05-28 Mobay Corporation Process for the production of molded products using internal mold release agents
US5161248A (en) * 1989-10-02 1992-11-03 Motorola, Inc. Method of predicting cell-to-cell hand-offs for a satellite cellular communications system
US5010317A (en) 1989-11-30 1991-04-23 Motorola, Inc. Satellite based simulcast paging system
JPH0491522A (en) * 1990-08-06 1992-03-25 Nippon Telegr & Teleph Corp <Ntt> Mobile communication equipment
CA2023053C (en) * 1990-08-10 1994-06-28 Frank D. Benner Method for assigning telecommunications channels in a cellular telephone system
US5276908A (en) * 1990-10-25 1994-01-04 Northern Telecom Limited Call set-up and spectrum sharing in radio communication on systems with dynamic channel allocation
US5239671A (en) * 1990-11-13 1993-08-24 Pagemart, Inc. Simulcast satellite paging system with provision for signal interruption

Also Published As

Publication number Publication date
CA2092744C (en) 2001-12-04
EP0569693A1 (en) 1993-11-18
DE69330849T2 (en) 2002-05-16
ATE206574T1 (en) 2001-10-15
US5423084A (en) 1995-06-06
JP3077727B2 (en) 2000-08-14
JPH06177815A (en) 1994-06-24
EP0569693B1 (en) 2001-10-04
DE69330849D1 (en) 2001-11-08
RU2137304C1 (en) 1999-09-10

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Legal Events

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EEER Examination request