IDCC Premium Board (IDCC)

[Gamco]

United States Patent 7,627,052
Goldberg December 1, 2009

--------------------------------------------------------------------------------
Pattern diversity to support a MIMO receiver and associated methods


Abstract
A MIMO communications system includes a transmitter, and a transmit antenna array connected to the transmitter and having M antenna elements for transmitting M source signals. A receive antenna array is connected to a receiver and has N antenna elements for receiving at least M different summations of the M source signals, with N being less than M. A signal separation processor is connected to the receiver for forming a mixing matrix that includes the at least M different summations of the M source signals so that the mixing matrix has a rank equal to at least M. The signal separation processor separates desired source signals from the mixing matrix.


--------------------------------------------------------------------------------
Inventors: Goldberg; Steven J. (Downingtown, PA)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/326,042
Filed: January 5, 2006

--------------------------------------------------------------------------------

Related U.S. Patent Documents

--------------------------------------------------------------------------------

Application Number Filing Date Patent Number Issue Date
11233329 Sep., 2005
60612546 Sep., 2004
60612435 Sep., 2004
60612433 Sep., 2004
60612550 Sep., 2004
60612632 Sep., 2004
60612548 Sep., 2004
60612471 Sep., 2004
60612551 Sep., 2004
60612469 Sep., 2004
60612547 Sep., 2004
60615338 Oct., 2004
60615260 Oct., 2004
60620775 Oct., 2004
60620776 Oct., 2004
60620862 Oct., 2004
60621113 Oct., 2004
60639223 Dec., 2004


--------------------------------------------------------------------------------

Current U.S. Class: 375/267 ; 375/135
Current International Class: H04B 7/02 (20060101)
Field of Search: 375/267,141,144,148,219,220,299,349