Pilots suitable for use in MIMO systems and capable of supporting various functions are
described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered …

In a MIMO communications system a first communications device applies beamforming to a
complete transmission packet including both synchronization data and either payload data …

A MIMO wireless communication system employing a variable size preceding codebook is
provided. The size of the codebook may be determined by the quality of the wireless …

Techniques to correct for phase and amplitude mismatches in a radio device in order to
maintain channel symmetry when communicating with another device using MIMO radio …

Channel estimation and spatial processing for a TDD MIMO system. Calibration may be
performed to account for differences in the responses of transmit/receive chains at the …

The present invention employs a pilot scheme for frequency division multiple access (FDM)
communication systems, such as single carrier FDM communication systems. A given …

Efficient pilot transmission schemes for multi-antenna communication systems are
described. In general, MISO receivers prefer a pilot transmitted in one spatial direction, and …

Abstract Systems and methodologies are described that facilitates computing a precoding
index which correlates to a precoding matrix within a codebook. According to various …

Techniques for calibrating the transmit and receive chains at a wireless entity are described.
For a pre-calibration, N first overall gains for a receiver unit and N transmitter units in the …

There is provided a method for placing reference signals in a wireless communication
system. The method includes preparing a plurality of sub-frames for a plurality of antennas …