CA2238646C - Systeme perfectionne de service radio relie a un satellite - Google Patents

Systeme perfectionne de service radio relie a un satellite Download PDF

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Publication number
CA2238646C
CA2238646C CA002238646A CA2238646A CA2238646C CA 2238646 C CA2238646 C CA 2238646C CA 002238646 A CA002238646 A CA 002238646A CA 2238646 A CA2238646 A CA 2238646A CA 2238646 C CA2238646 C CA 2238646C
Authority
CA
Canada
Prior art keywords
met
net
message
group
satellite
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
CA002238646A
Other languages
English (en)
Other versions
CA2238646A1 (fr
Inventor
C. Edward Sigler
Richard S. Sweet
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.)
ATC Technologies LLC
Original Assignee
Motient Services 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 US08/657,479 external-priority patent/US5717830A/en
Application filed by Motient Services Inc filed Critical Motient Services Inc
Publication of CA2238646A1 publication Critical patent/CA2238646A1/fr
Application granted granted Critical
Publication of CA2238646C publication Critical patent/CA2238646C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B7/18567—Arrangements for providing additional services to the basic mobile satellite telephony service
    • 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
    • H04B7/18578—Satellite systems for providing broadband data service to individual earth stations

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)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)

Abstract

Un système de communication mobile assurant la communication entre des utilisateurs multiples (10) dans une configuration de groupe fermé d'utilisateurs, comprend une pluralité de terminaux terrestres mobiles (TTM) (10) rattachés à un système satellitaire mobile (12). Le premier terminal terrestre mobile (10) sélectionne un identificateur de réseau (ID RESEAU) de groupe fermé d'utilisateurs, représentant un groupe RESEAU pour établir la communication vocale avec ce dernier et envoyer l'ID RESEAU à un dispositif de commande central (14). Ce dernier (14) reçoit l'ID RESEAU d'un premier TTM (10), valide l'ID RESEAU, attribue une fréquence au groupe reseau et diffuse le message à l'attention du groupe réseau l'informant de la fréquence attribuée. Le deuxième TTM (10) se règle sur la fréquence en réponse au message diffusé par le dispositif de commande central (14).
CA002238646A 1995-11-30 1996-11-27 Systeme perfectionne de service radio relie a un satellite Expired - Fee Related CA2238646C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US774295P 1995-11-30 1995-11-30
US60/007,742 1995-11-30
US1420596P 1996-03-27 1996-03-27
US60/014,205 1996-03-27
US08/657,479 1996-05-29
US08/657,479 US5717830A (en) 1995-09-19 1996-05-29 Satellite trunked radio service system
PCT/US1996/019165 WO1997020401A1 (fr) 1995-11-30 1996-11-27 Systeme perfectionne de service radio relie a un satellite

Publications (2)

Publication Number Publication Date
CA2238646A1 CA2238646A1 (fr) 1997-06-05
CA2238646C true CA2238646C (fr) 2001-03-20

Family

ID=27358434

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002238646A Expired - Fee Related CA2238646C (fr) 1995-11-30 1996-11-27 Systeme perfectionne de service radio relie a un satellite

Country Status (3)

Country Link
AU (1) AU1276397A (fr)
CA (1) CA2238646C (fr)
WO (1) WO1997020401A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6058307A (en) * 1995-11-30 2000-05-02 Amsc Subsidiary Corporation Priority and preemption service system for satellite related communication using central controller
DE19912547A1 (de) 1999-03-19 2000-09-28 Bosch Gmbh Robert Verfahren, Zentrale und Endgerät zur Übertragung von Mitteilungen an Endgeräte in einem Telekommunikatiossystem
EP1056223A1 (fr) * 1999-05-25 2000-11-29 ICO Services Ltd. Système de communication par satellite ayant des groupes s'excluant d'utilisateurs
US6915136B2 (en) * 2000-11-10 2005-07-05 Ntt Docomo, Inc. Mobile communication method and mobile communication system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303286A (en) * 1991-03-29 1994-04-12 Space Systems/Loral, Inc. Wireless telephone/satellite roaming system
US5394560A (en) * 1992-09-30 1995-02-28 Motorola, Inc. Nationwide satellite message delivery system

Also Published As

Publication number Publication date
CA2238646A1 (fr) 1997-06-05
AU1276397A (en) 1997-06-19
WO1997020401A1 (fr) 1997-06-05

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Legal Events

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EEER Examination request
MKLA Lapsed