HYBRID TERRESTRIAL-SATELLITE TELECOMMUNICATIONS NETWORK WITH ADAPTABLE TERRESTRIAL RELAY-STATIONS

• US 20090163138A1
• Filed: 12/19/2008
• Published: 06/25/2009
• Est. Priority Date: 12/21/2007
• Status: Abandoned Application

• Current Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Original Assignee: Commissariat a L'Energie Atomique (AES Corporation)
• Inventors: Cassiau, Nicolas, Des Noes, Mathieu, CALVANESE STRINATI, Emilio
• Application Number:
  US12/339,175
• Publication Number:
  US 20090163138A1
• Time in Patent Office: Days
• US Class Current: 455/12.100
• CPC Class Codes: H04B 7/18519 Operations control, administration or maintenance

Abstract

The general field of the invention is that of hybrid telecommunication networks comprising at least one telecommunication relay-satellite emitting at least one signal covering a given geographical zone organized into sub-zones of smaller dimension, a terrestrial relay-station able to receive, to process the satellite signal and to emit a signal in at least one of the sub-zones and mobile reception terminals. The network according to the invention comprises first means making it possible to carry out a mapping of the quality of reception of the satellite signal in each sub-zone; second means making it possible to transmit the mapping information to the terrestrial relay-station. The relay-station comprises third means making it possible, as a function of the reception mapping information, to emit a signal dependent on the said mapping making it possible to improve the quality of reception in its reception sub-zone.

Claims

1. Hybrid telecommunication network comprising:

at least one telecommunication relay-satellite emitting at least one signal covering a given geographical zone organized into sub-zones of smaller dimension, a terrestrial relay-station able to receive, to process the satellite signal and to emit a signal in at least one of the sub-zones and mobile reception terminals, wherein;

the network comprises first means to carry out a mapping of the quality of reception of the satellite signal in each sub-zone;

the network comprises second means to transmit the mapping information to the terrestrial relay-station;

the relay-station comprises third means, as a function of the reception mapping information, to emit a signal dependent on the said mapping to improve the quality of reception in its reception sub-zone.

2. The network according to claim 1, wherein the mapping information is of two types, reception quality information due to the topography of the sub-zones and reception quality information due to the meteorological conditions.

3. The network according to claim 1, wherein the quality of reception in each sub-zone comprises at least three distinct levels:

first level;

correct satellite reception of the reception terminals;

second level;

partial or fluctuating satellite reception of the reception terminals;

third level;

incorrect satellite reception of the reception terminals.

4. The network according to claim 1, wherein the network comprises fourth means for controlling the emission signal of the terrestrial relay-station.

5. The network according to claim 1, wherein the relay-station comprises fifth means to receive information from the mobile reception terminals.

6. The network according to claim 5, wherein the information received from the terminals relates to the quality of reception by the said terminals.

7. The network according to claim 1, wherein the signal emitted by the station is a destructive interference signal in regard to the satellite signal or a noisy interference signal so as to avoid correct reception in certain prohibited sub-zones.

8. The network according to claim 1, wherein the location of the terrestrial relay-station is determined as a function of the mapping of the quality of reception of the satellite signal, the location possibly being definitive or temporary.