ALEXANDRIA, Va., July 16 -- United States Patent no. 12,362,981, issued on July 15, was assigned to NOKIA TECHNOLOGIES OY (Espoo, Finland).
"Apparatus and method for compensating phase noise" was invented by Ismael Peruga (Tampere, Finland), Toni Levanen (Tampere, Finland), Mikko Valkama (Nokia, Finland) and Markku Renfors (Tampere, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a method for compensating phase noise. A symbol comprising one or more data sub-symbols and one or more pilot sub-symbols is received (501). A sequence of first phase noise estimates is obtained (502) based at least partly on the one or more pilot sub-symbols. A first filter is used to obtain (503, 507) a first s...