DE69230015D1 - Kommunikationssystem mit Hilfe von Satelliten in niedriger Umlaufbahn zu Mobilstationen - Google Patents
Kommunikationssystem mit Hilfe von Satelliten in niedriger Umlaufbahn zu MobilstationenInfo
- Publication number
- DE69230015D1 DE69230015D1 DE69230015T DE69230015T DE69230015D1 DE 69230015 D1 DE69230015 D1 DE 69230015D1 DE 69230015 T DE69230015 T DE 69230015T DE 69230015 T DE69230015 T DE 69230015T DE 69230015 D1 DE69230015 D1 DE 69230015D1
- Authority
- DE
- Germany
- Prior art keywords
- satellites
- communication system
- mobile stations
- low orbit
- orbit
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
-
- 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)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR919106591A FR2677197B1 (fr) | 1991-05-31 | 1991-05-31 | Systeme de communications par satellites en orbite basse a destination de terminaux mobiles. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69230015D1 true DE69230015D1 (de) | 1999-10-28 |
DE69230015T2 DE69230015T2 (de) | 2000-05-25 |
Family
ID=9413340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69230015T Expired - Fee Related DE69230015T2 (de) | 1991-05-31 | 1992-05-26 | Kommunikationssystem mit Hilfe von Satelliten in niedriger Umlaufbahn zu Mobilstationen |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0516039B1 (de) |
JP (1) | JPH05167487A (de) |
AU (1) | AU645905B2 (de) |
CA (1) | CA2070082C (de) |
DE (1) | DE69230015T2 (de) |
FR (1) | FR2677197B1 (de) |
NZ (1) | NZ242764A (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2682238B1 (fr) * | 1991-10-02 | 1994-10-07 | Alcatel Espace | Systeme de communications par satellites en orbite basse a destination de terminaux. |
JPH0738610B2 (ja) * | 1993-03-01 | 1995-04-26 | 日本電気株式会社 | 周回衛星の送信装置 |
US5422647A (en) * | 1993-05-07 | 1995-06-06 | Space Systems/Loral, Inc. | Mobile communication satellite payload |
US5619210A (en) * | 1994-04-08 | 1997-04-08 | Ericsson Inc. | Large phased-array communications satellite |
US5642358A (en) * | 1994-04-08 | 1997-06-24 | Ericsson Inc. | Multiple beamwidth phased array |
GB2324912B (en) * | 1994-04-18 | 1999-02-24 | Int Mobile Satellite Org | Beam-forming network |
US5652750A (en) * | 1995-08-28 | 1997-07-29 | Ericsson Inc. | Optical satellite feeder links |
EP0951760A1 (de) * | 1997-01-17 | 1999-10-27 | Edward F. Tuck | Verfahren zur steuerung eines energiestrahls in einem zellularen satellitenübertragungssystem |
US6081227A (en) * | 1998-01-05 | 2000-06-27 | Motorola, Inc. | Method and apparatus for beam management in a satellite communication system |
GB0822492D0 (en) * | 2008-12-10 | 2009-01-14 | Astrium Ltd | Content broadcasting |
US11146328B2 (en) * | 2015-04-03 | 2021-10-12 | Qualcomm Incorporated | Method and apparatus for avoiding exceeding interference limits for a non-geostationary satellite system |
US9985713B2 (en) | 2015-07-09 | 2018-05-29 | Hughes Network Systems, Llc | Apparatus and method for generating boundaries of satellite coverage beams |
EP3726748B1 (de) * | 2017-11-28 | 2021-10-13 | Airbus Defence and Space Limited | System zur synchronisierung von strahlspringen |
CN109583055B (zh) * | 2018-11-15 | 2022-02-22 | 中国人民解放军61646部队 | 一种基于覆盖圆的卫星星下点轨迹分布优化调整方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL91529A0 (en) * | 1988-10-28 | 1990-04-29 | Motorola Inc | Satellite cellular telephone and data communication system |
US4965605A (en) * | 1989-05-16 | 1990-10-23 | Hac | Lightweight, low profile phased array antenna with electromagnetically coupled integrated subarrays |
FR2682238B1 (fr) * | 1991-10-02 | 1994-10-07 | Alcatel Espace | Systeme de communications par satellites en orbite basse a destination de terminaux. |
-
1991
- 1991-05-31 FR FR919106591A patent/FR2677197B1/fr not_active Expired - Lifetime
-
1992
- 1992-05-15 NZ NZ242764A patent/NZ242764A/en unknown
- 1992-05-25 AU AU17137/92A patent/AU645905B2/en not_active Ceased
- 1992-05-26 EP EP92108838A patent/EP0516039B1/de not_active Expired - Lifetime
- 1992-05-26 DE DE69230015T patent/DE69230015T2/de not_active Expired - Fee Related
- 1992-05-29 CA CA002070082A patent/CA2070082C/fr not_active Expired - Fee Related
- 1992-05-29 JP JP4139407A patent/JPH05167487A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2677197A1 (fr) | 1992-12-04 |
FR2677197B1 (fr) | 1994-09-16 |
AU645905B2 (en) | 1994-01-27 |
DE69230015T2 (de) | 2000-05-25 |
EP0516039A1 (de) | 1992-12-02 |
NZ242764A (en) | 1994-11-25 |
JPH05167487A (ja) | 1993-07-02 |
CA2070082C (fr) | 1998-05-12 |
AU1713792A (en) | 1992-12-03 |
CA2070082A1 (fr) | 1992-12-01 |
EP0516039B1 (de) | 1999-09-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0531090A3 (en) | Cells re-use partition in a mobile communication system | |
NO874147D0 (no) | Kommunikasjonssystem og stasjoner for bruk i saadant system | |
GB2279842B (en) | Mobile satellite communication system | |
EP0306918A3 (en) | Mobile satellite communication system | |
FI964226A (fi) | Taloudellinen geosynkroninen liikkuva satelliittikommunikaatiojärjestelmä | |
EP0313054A3 (en) | Transceiver for use in earth station in satellite communications system | |
GB2267627B (en) | Improvements in or relating to radio communication systems | |
EP0536033A3 (en) | Method of traffic switching in a low orbit satellite communication system with terminals as destination and communication system using this method | |
EP0324508A3 (en) | Mobile communication system | |
NO177518C (no) | Asynkront enveis satelitt-kommunikasjonssystem | |
DE3750877D1 (de) | Satelliten-kommunikationssystem für mobile benützer. | |
DE69230015D1 (de) | Kommunikationssystem mit Hilfe von Satelliten in niedriger Umlaufbahn zu Mobilstationen | |
DE3687727D1 (de) | Kommunikationssystem mit buerodiensten fuer mobile teilnehmer in einem zellularsystem. | |
DE69533327D1 (de) | Leistungsregelung in einem beweglichen Satellitenkommunikationssystem | |
GB2255878B (en) | Mobile communication system | |
GB2268364B (en) | Improvements in or relating to radio communication systems | |
GB2271245B (en) | Improvements in or relating to mobile radio systems | |
AU6655090A (en) | Carrier regenerating device correctly operable in mobile satellite communication | |
NO933769L (no) | Radio-celle telefonsystem | |
KR850005189A (ko) | 무선 통신 시스템내의 수신기 유니트 | |
AU659382B2 (en) | Carrier regenerating device correctly operable in mobile satellite communication | |
FR2735304B1 (fr) | Systeme de communication par satellites a defilement, satellite, station et terminal y inclus | |
EP0502542A3 (en) | Mobile communication system | |
FI952090A (fi) | Menetelmä ja järjestelmä lisäpalveluiden järjestämiseksi matkaviestimelle | |
MX173850B (es) | Transferencia de comunicacion en un sistema de radiotelefono |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |