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Ground device for communicating with an elevated communication hub and method of operation thereof
| Details |
Inventors: Ibanez-Meier, Rodrigo; Kapoor, Vijay; Aguirre, Sergio;
Assignee: Motorola, Inc. (Schaumburg, IL)
Primary Examiner: Pham; Chi H.
Assistant Examiner: Tran; Maikhanh
Attorney, Agent or Firm: Whitney; Sherry J., LeMoine; Dana B., Bogacz; Frank J.
A method and apparatus for communicating with a high-altitude communication platform (110) which combines multiple signals from multiple sources into one signal which is sent to a ground device (120). The ground device (120) can send a combined signal to the platform (110) which the platform (110) can then separate and send to multiple destinations. The ground device (120) also can provide spectral reuse by orienting directional antennas (360-362) toward the communication platform (110) and one or more spatially diverse other wireless devices. |
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DETAILED DESCRIPTION OF THE DRAWINGS The method and apparatus of the present invention provides inexpensive and relatively simple devices and methods for communicating between multiple wireless communication devices.
This includes interfacing ground devices and satellites by shifting antennas and otherwise expensive equipment to a non-orbiting communication platform (referred to herein as a "platform") which interfaces the satellites with the ground devices.
Although interfacing satellites with ground devices is one useful application, the method and apparatus of the present invention basically provides interfaces between any two wireless communication devices using a non-orbiting communication platform.
As used herein, a "wireless communication device" refers to any device which communicates without hard-wired connections, including but not limited to cellular telephones, pagers, data devices, satellites, radios and any other optical, radio frequency (RF), or non-hardwired communication device.
A "ground device" is used herein to mean any wireless communication device which is located proximate to, above, or below the surface of the earth.
A "satellite" is used herein to mean an orbiting wireless communication device which can be located in any orbit including, but not limited to, low-earth orbit (LEO), medium-earth orbit (MEO), high-earth orbit (HEO), or geosynchronous orbit (GEO).
A "signal source" or "signal destination" is used herein to mean any wireless communication device.
FIG.
1 illustrates communication system 100 in accordance with a preferred embodiment of the present invention.
Communication system 100, in varying embodiments, includes some combination of communication platforms 110, 112, signal source/destination devices 120-122, satellites 130-133, and communication devices 140-142.
In a preferred embodiment, communication system 100 includes all of the above devices.
Communication platforms 110, 112 are central to communication system 100 and provide many of the advantages of the method and apparatus of the present invention
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