FR2741493B1 - Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers - Google Patents

Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers

Info

Publication number
FR2741493B1
FR2741493B1 FR9614803A FR9614803A FR2741493B1 FR 2741493 B1 FR2741493 B1 FR 2741493B1 FR 9614803 A FR9614803 A FR 9614803A FR 9614803 A FR9614803 A FR 9614803A FR 2741493 B1 FR2741493 B1 FR 2741493B1
Authority
FR
France
Prior art keywords
user terminals
radio signals
mobile user
signals via
earth station
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
FR9614803A
Other languages
English (en)
Other versions
FR2741493A1 (fr
Inventor
Luigi Bella
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.)
Agence Spatiale Europeenne
Original Assignee
Agence Spatiale Europeenne
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 Agence Spatiale Europeenne filed Critical Agence Spatiale Europeenne
Priority to FR9614803A priority Critical patent/FR2741493B1/fr
Publication of FR2741493A1 publication Critical patent/FR2741493A1/fr
Application granted granted Critical
Publication of FR2741493B1 publication Critical patent/FR2741493B1/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
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
FR9614803A 1996-12-03 1996-12-03 Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers Expired - Fee Related FR2741493B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9614803A FR2741493B1 (fr) 1996-12-03 1996-12-03 Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9614803A FR2741493B1 (fr) 1996-12-03 1996-12-03 Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers

Publications (2)

Publication Number Publication Date
FR2741493A1 FR2741493A1 (fr) 1997-05-23
FR2741493B1 true FR2741493B1 (fr) 1998-08-21

Family

ID=9498269

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9614803A Expired - Fee Related FR2741493B1 (fr) 1996-12-03 1996-12-03 Procede et systeme de transmission de signaux radioelectriques via un reseau de satellites entre une station terrestre fixe et des terminaux mobiles d'usagers

Country Status (1)

Country Link
FR (1) FR2741493B1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689625A (en) * 1984-11-06 1987-08-25 Martin Marietta Corporation Satellite communications system and method therefor
AU604082B2 (en) * 1986-12-22 1990-12-06 Hughes Electronics Corporation Steerable beam antenna system using butler matrix
FR2682238B1 (fr) * 1991-10-02 1994-10-07 Alcatel Espace Systeme de communications par satellites en orbite basse a destination de terminaux.
US5227802A (en) * 1991-12-23 1993-07-13 Motorola, Inc. Satellite system cell management
JP2706600B2 (ja) * 1992-05-28 1998-01-28 ティアールダブリュー インコーポレイテッド 中間地球高度のサテライトをベースとするセル式遠隔通信システム
US5367304A (en) * 1992-07-06 1994-11-22 Motorola, Inc. Communication system employing spectrum reuse on a spherical surface
US5542104A (en) * 1993-05-27 1996-07-30 Nec Corporation Portable satellite communication equipment with foldable flat antennae common to both transmission and reception

Also Published As

Publication number Publication date
FR2741493A1 (fr) 1997-05-23

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Legal Events

Date Code Title Description
ST Notification of lapse