Techniques for sending a MIMO transmission in a wireless communication system are
described. In one design, a transmitter sends a first reference signal to a receiver. The …

In a closed-loop wireless communication system, a code book-based feedback mechanism
is provided where each codeword indicates a particular profile to be used to provide a target …

Methods, systems, and apparatus, including computer programs encoded on computer
storage media, for training and deploying machine-learned communication over multi-input …

A multi-user MIMO downlink beamforming system with limited feedback (200) is provided to
enable preceding for multi-stream transmission, where a channel codeword (ui) and one or …

US7961807B2 - Reference signaling scheme using compressed feedforward codebooks for
multi-user, multiple input, multiple output (MU-MIMO) systems - Google Patents US7961807B2 …

Precoding methods and method for performing precoding and methods of transmitting
feedback information for pre coding or transmitting a signal using a multi-codebook and …

(57) ABSTRACT A data transmission method in a multiple antenna system is provided. The
method includes: defining a codebook includ ing at least one precoding matrix composed of …

(57) ABSTRACT A system and method for collaboratively designing opti mized beam
forming vectors is disclosed for a wireless mul tiple input, multiple output (MIMO) space …

In a closed-loop wireless communication system, a codebook-based feedback mechanism
is provided to enable non-unitary precoding for multi-stream transmission, where in each …

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 …