The present invention is designed to reduce the increase in the amount of the calculation
process in a mobile station and the amount of CSI feedback data, and also prevent the …

(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 …

BACKGROUND This technology pertains to feedback reporting and feed back processing
for spatial multiplexing schemes found for example in radio communications. In a typical …

Methods and apparatus are provided for beam forming and information feedback are
provided. Signals for beams to be transmitted through corresponding antenna ports, are gen …

2015-01-25 Assigned to PANASONIC INTELLECTUAL PROPERTY CORPORATION OF
AMERICA reassignment PANASONIC INTELLECTUAL PROPERTY CORPORATION OF …

(57) ABSTRACT A data transmission method using spatial multiplexing is disclosed. The
data transmission method using spatial multi plexing includes modulating at least one …

(57) ABSTRACT A transmitter, receiver, and method for channel estimation for a Multiple-
Input Multiple-Output (MIMO) communication system in which the transmitter includes a …

Methods and apparatus for beam forming for femtocells. Such as in LTE wireless networks,
to provide inter-cell coordina tion and interference mitigation are disclosed. A macrocell user …

US9877312B2 - Method and apparatus for transmitting and receiving reference signal - Google
Patents US9877312B2 - Method and apparatus for transmitting and receiving reference …

BACKGROUND Communication systems are widely deployed to provide various types of
communication content such as data, Voice, Video and so on. These systems may be …