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 Title: |
US6259921:
Communication routing method by a satellite in a network
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Totaro, Antoine; Muret, France
Flores, Erick; Toulouse, France
Charpentier, Jean; Viroflay, France
Thies, Roland; Paris, France
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| Assignee: |
Alcatel, Paris, France
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| Published / Filed: |
2001-07-10
/ 1999-01-05
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| Application Number: |
US1999000214368
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| IPC Code: |
Advanced:
H04B 7/185;
Core:
more...
IPC-7:
H04Q 7/20;
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| ECLA Code: |
H04B7/185M8D; H04B7/185M10B;
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| U.S. Class: |
Current:
455/445;
455/456.1;
455/525;
Original:
455/445;
455/456;
455/525;
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| Field of Search: |
455/427,428,455,456,445,12.1,430,525
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| Priority Number: |
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| Abstract: |
The present invention relates to a method of routing a call between a first terminal which is a mobile terminal (5) and a second terminal (4) in a global telecommunications network, it being possible for the call to be routed in the global network a)-at least in part through a satellite telecommunications network (1) using base stations (2, 3) giving access to satellites, and b) -at least in part through a terrestrial telecommunications network (PSTN) connected to the base stations (2, 3), each satellite (1) in the satellite telecommunications network defining an overall coverage area covering a plurality of base stations, the overall coverage area defining a plurality of coverage sub-areas, each of which is associated with a respective one of the base stations (2, 3). The method is characterized in that it includes a location updating step in which the location of the first terminal (5) is updated as being in coverage sub-area associated with that one of the base stations (2, 3) which is closest to the second terminal so as to minimize the routing distance over which the call travels through the terrestrial telecommunications network (PSTN).
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| Attorney, Agent or Firm: |
Sughrue, Mion, Zinn, Macpeak & Seas, PLLC ;
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| Primary / Asst. Examiners: |
Urban, Edward F.; Milord, Marceau
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AU CA EP US DE ES GB IT SE
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| Family: |
Show 8 known family members
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First Claim:
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What is claimed is:
1. A method of routing a call between a mobile first terminal and a second terminal in a global telecommunications network, it being possible for said call to be routed in said global network a) at least in part through a satellite telecommunications network using base stations giving access to satellites, and b) at least in part through a terrestrial telecommunications network connected to said base stations, said call being routed via a base station that minimizes the routing distance over which said call travels through said terrestrial telecommunications network, said method being characterized in that, prior to setting up each said call, said method includes a location updating step in which the location of the first terminal is updated as being in the coverage area associated with the base station that is closest to said second terminal and which minimizes the routing distance over which the call travels through said terrestrial telecommunications network, the updated location being different from said first terminal's current location.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| PCT Number: |
PCT/FR98/00925
WO9851020
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| PCT Pub./Filed Dates: |
1998-11-12 / 1998-05-07
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| § 371 / 102(e) Dates: |
1999-01-05 / 1999-01-05
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| Forward References: |
Show 11 U.S. patent(s) that reference this one
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