A method includes configuring a transmitter and a receiver with first precoding matrices for
map** onto N transmit antenna ports of the transmitter R1≦ N data streams. Each first …

(57) ABSTRACT A method for communication includes receiving at a receiver from a group
of two or more transmitters multiple Radio Frequency (RF) transmission beams that alternate …

Int, C], To perform rank adaptation for a mobile station in a wireless H04W4/00(200901)
network, it is determined whether the mobile station is fast H04B 7/06(200601) moving. In …

(57) ABSTRACT Correspondence Address: TEXAS INSTRUMENTS INCORPORATED
Transmission with multiple antennas in a wireless network is PO BOX 655474, M/S 3999 …

Methods and devices for communicating in a communication system are described herein.
One aspect provides a method of communicating over one or more space-time streams. The …

A data transmission method using spatial multiplexing is disclosed. The data transmission
method using spatial multiplexing includes modulating at least one codeword to generate at …

Techniques for performing rank-dependent precoding for a multiple-input multiple-output
(MIMO) transmission are described. Each rank may be associated with a set of at least one …

A method for data transmission is provided that includes selecting a codeword from a
predetermined codebook based on a transmission rank, generating a precoding matrix …

8,098,750 B2 1/2012 Muecket al. 2010.0056170 A1 3/2010 Lindoffet al. 8,179,775 B2 5,
2012 Chen et al. 2010 OO61477 A1 3/2010 Lee et al. 8,325,844 B2 12/2012 Walton et al …

The present invention relates to a wireless communication system, and an adaptive multiple
antenna transmission method and apparatus in accordance with antenna transmission …