US 7529305

US Patent 7529305: Concise Summary

Title: Combination of space-time coding and spatial multiplexing, and the use of orthogonal transformation in space-time coding

Current Assignee: Malikie Innovations Ltd.

Inventors: Wen Tong, Michail G. Bakulin, Vitaly B. Kreyndelin, Alexander M. Shloma, Yuriy S. Shinakov

Filing Date: October 27, 2000

Issue Date: May 5, 2009

Abstract: The patent proposes combining space-time coding and spatial multiplexing, and the use of orthogonal transformation matrices. This combination ensures that each bitstream contributes to the signal on each antenna.

Plain-Language Overview of Independent Claims:

• Claim 1 (Transmitter Apparatus): This claim describes a transmitter designed to handle multiple (M) symbol substreams. It includes a space-time coding block that creates M space-time coded symbols for every set of M input symbols. A key feature is that each symbol from the M substreams is represented across all M space-time coded streams, and this representation occurs at different times for each stream, due to a delay arrangement. These M space-time coded streams are then transmitted by M respective antennas.
• Claim 8 (Transmission Method): This claim outlines a method for transmitting data. It involves demultiplexing an input symbol stream into M symbol substreams, followed by coding and modulation of each substream. A space-time coding function then produces M space-time coded symbols per input set, ensuring each symbol of the M substreams is represented in all M space-time coded streams. A delay function is implemented so that the time of representation for each symbol in the M space-time coded streams is different. Finally, these M space-time coded streams are transmitted via separate antennas, with the M space-time coded symbols containing a representation of an input symbol transmitted at different times.

CAFC 2026 Dockets: No authoritative information regarding US patent 7529305 was found in the CAFC 2026 dockets.