WO2006020741A2

5G,4G,3G

Title

Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

Application Number:

WO2005US28487

Publication Date:

23-02-2006

Family ID:

Application Date:

11-08-2005

Declaring Company:

Publication Country:

US

Priority Date:

12-08-2004

Title

Method and apparatus for implementing space frequency block coding in an orthogonal frequency division multiplexing wireless communication system

Application Number:

WO2005US28487

Family ID:

Publication Country:

US

Publication Date:

23-02-2006

Application Date:

11-08-2005

Priority Date:

12-08-2004

Declaring Company:

Abstract  Abstract

The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.