Resources Contact Us Home
Satellite communication system providing multi-gateway diversity to a mobile user terminal

Image Number 4 for United States Patent #6661996.

Disclosed herein is a method for operating a satellite communications system as well as a method for providing a larger effective gateway coverage area, and a system that operates in accordance with the methods. The methods include steps of (a) establishing a call connection between a terrestrial telecommunications network and a user terminal via a first gateway and at least one satellite; and (b) while the call connection is established, coupling the user terminal to the terrestrial telecommunications network via a second gateway and at least one further satellite. The step of coupling includes a step of conveying call speech or data information between the first gateway and the second gateway over an inter-gateway communications link. By so linking multiple gateways each gateway experiences an increase in its effective coverage area, as an on-going call can be continued even after a user terminal moves from a first gateway's coverage area into a second gateway's coverage area.

  Recently Added Patents
Secure soft SIM credential transfer
Electrode structure and its manufacturing method, and semiconductor module
Display screen or portion thereof with icon
Apparatus for controllable delay cell and associated methods
Method for manufacturing light emitting diodes
Method for production of fermentable sugars from biomass
Method and apparatus for communication channel error rate estimation
  Randomly Featured Patents
Cut object dynamic display and method of displaying cut objects
Optical systems with antireciprocal polarization rotators
Method of making analogues of .beta.-alumina
Screen reader list view presentation method
Ultrasonic image recording method and system
High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire
Operating system rebooting method and apparatus for continuing to execute a non-stop module even during rebooting
Substituted azabicycloheptanes, the use thereof, pharmaceutical preparations that contain these compounds, and processes for the manufacture of these compounds
Shutter driving mechanism for camera
Optical glass, optical waveguide amplifier and optical waveguide laser