ALEXANDRIA, Va., June 9 -- United States Patent no. 12,289,153, issued on April 29, was assigned to Lenovo (Singapore) Pte. Ltd. (New Tech Park, Singapore).

"Communication apparatus and method for communicating using a transmit power difference between antennas" was invented by Colin Frank (Park Ridge, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Reference symbols can be received. A first received power of the reference symbols on a first antenna port can be measured. A second received power of the reference symbols on a second antenna port that is coupled to and uses the same transmit power amplifier as the first antenna port can be measured. A received power difference can be determined based on a r...