InvestorsHub Logo

Gamco

03/30/10 9:40 AM

#286782 RE: Gamco #286780

United States Patent 7,688,979
Reznik , et al. March 30, 2010

--------------------------------------------------------------------------------
MIMO air interface utilizing dirty paper coding


Abstract
A transceiver comprising a data processing module, a security processing module, a medium access control (MAC) module, a dirty-paper-coding (DPC) module, and a smart antenna processor. The data processing module provides user data streams to the MAC module and channel state information to the smart antenna processor. The security processing module generates security data and provides the security data to the MAC module. The security module also provides security policy data to the smart antenna processor. The MAC module determines data transmission rates for the user data streams and the security data. In addition, the MAC module allocates the data streams and security data to transmission channels for transmission. The DPC module encodes the security data onto the user data streams. The smart antenna processor generates pre-coding coefficients used by the DPC module and transmits the security encoded data streams.


--------------------------------------------------------------------------------
Inventors: Reznik; Alexander (Titusville, NJ), Zhang; Guodong (Farmingdale, NY), Shin; Sung-Hyuk (Northvale, NJ), Tu; Zhenyu (Bethlehem, PA)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 11/238,342
Filed: September 29, 2005

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

Related U.S. Patent Documents

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

Application Number Filing Date Patent Number Issue Date
60663920 Mar., 2005


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

Current U.S. Class: 380/270 ; 360/254; 360/270; 360/42; 455/121; 455/410; 455/413; 455/450; 713/153; 726/12
Current International Class: H04W 40/12 (20090101); H04W 12/08 (20090101)
Field of Search: 380/238,253,254,38,247,100,270 713/501,166,172,185 455/426.1,410,450 726/14,17,22 379/230 385/24 370/426 712/237,204