United States Patent 7,551,680
Goldberg June 23, 2009
--------------------------------------------------------------------------------
Wireless communication method and apparatus for forming, steering and selectively receiving a sufficient number of usable beam paths in both azimuth and elevation
Abstract
A wireless communication method of exploiting the radio frequency (RF) physical environment to establish a sufficient number of usable multiple paths of RF propagation for facilitating communications. The method is implemented in a wireless communication system including at least one transmitter and at least one receiver. The receiver's antenna is directed towards one of a plurality of reception paths and receives a data stream from the transmitter via the reception path that the receiver antenna is directed towards. The receiver decodes the data stream, reconstructs a modulation pattern of the decoded data stream, and subtracts the reconstructed data stream from a sum of all of the signals received by the receiver via the reception paths. The receiver provides received signal direction information associated with reception paths to the transmitter. The transmitter adjusts and/or eliminates one or more of the reception paths that are unusable based on the signal direction information.
--------------------------------------------------------------------------------
Inventors: Goldberg; Steven Jeffrey (Downingtown, PA)
Assignee: InterDigital Technology Corporation (Wilmington, DE)
Appl. No.: 11/014,290
Filed: December 16, 2004
--------------------------------------------------------------------------------
Related U.S. Patent Documents
--------------------------------------------------------------------------------
Application Number Filing Date Patent Number Issue Date
60622899 Oct., 2004
--------------------------------------------------------------------------------
Current U.S. Class: 375/267 ; 342/81
Current International Class: H04B 7/02 (20060101)
Field of Search: 375/267,260,259,295,316,377,616 342/5,6,21,59,81,73,74,350
