H04B7/0615—Diversity systems; Multi-antenna system, ie transmission or reception using
multiple antennas using two or more spaced independent antennas at the transmitting …

US PATENT DOCUMENTS nals, fast acknowledgment, and quick resource assignments.
Calibration may be performed to account for differences in the frequency responses of …

A system and machine-implemented method are described for performing precoding
interpolation in a DIDO system which employs orthogonal frequency-division multiplexing …

A system and method are described which enable planned evolution and obsolescence of
multiuser wireless spectrum. One embodiment of such a system includes one or multiple …

(57) ABSTRACT A system and method are described for compensating for frequency and
phase offsets in a multiple antenna system (MAS) With multi-user (MU) transmissions (“MU …

Embodiments of the invention provide method for allocating CAZAC pilot (reference signal)
sequences in multiple access OFDMA systems, or alternatively, in multiple access DFT …

Methods and systems for communications that generate a plurality of spatial streams,
wherein each of the spatial streams comprises a data packet with a training sequence; and …

A MIMO system supports multiple spatial multiplexing modes for improved performance and
greater flexibility. These modes may include (1) a single-user steered mode that transmits …

A system for compensating for in-phase and quadrature (I/Q) imbalances for multiple
antenna systems (MAS) with multi-user (MU) transmissions (defined with the acronym MU …

In a single-carrier frequency division multiple access (SC FDMA) system that utilizes
interleaved FDMA (IFDMA) or localized FDMA (LFDMA), a transmitter generates modula tion …