07447501 is referenced by 44 patents and cites 140 patents.

A satellite radiotelephone frequency band can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference reduction/cancellation techniques. An interference reducer is responsive to a space-based component and to an ancillary terrestrial network. The interference reducer is configured to reduce interference in wireless communications that are received by the space-based component from first radiotelephones in the satellite footprint over a satellite radiotelephone frequency band using wireless communications that are received by the ancillary terrestrial network from selected ones of second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band and/or wireless communications that are transmitted by the ancillary terrestrial network to the second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band. The interference reducer may include a prefilter that is configured to determine the selected ones of the second radiotelephones.

Title
Systems and methods for monitoring selected terrestrially used satellite frequency signals to reduce potential interference
Application Number
11/133102
Publication Number
7447501 (B2)
Application Date
May 19, 2005
Publication Date
November 4, 2008
Inventor
Peter D Karabinis
Cary
NC, US
Agent
Myers Bigel Sibley & Sajovec P A
Assignee
ATC Technologies
VA, US
IPC
H04B 7/19
H04B 7/185
H04Q 7/20
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