ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,757, issued on May 20, was assigned to SoftBank Corp. (Tokyo).
"Base station and radio communication system" was invented by Teruya Fujii (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A base station and a radio communication system obtain a desired communication quality by suppressing an influence of interference between a cell in an upper-airspace area and a cell in a terrestrial area when a terminal apparatus is used in the upper-airspace area. The base station is provided with an antenna, a radio communication section for forming a first cell and a second cell above the first cell and performs radio communication via the antenna to and fr...