ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,224,957, issued on Feb. 11, was assigned to Sun Patent Trust (New York).
"Communication apparatus and reference signal reception method" was invented by Takashi Iwai (Ishikawa, Japan), Sadaki Futagi (Ishikawa, Japan), Tomohumi Takata (Ishikawa, Japan), Daichi Imamura (Saitama, Japan) and Yoshihiko Ogawa (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a wireless transmitter and a reference signal transmission method that improve channel estimation accuracy. In a terminal, which transmits a reference signal using n (n is a non-negative integer 2 or greater) band blocks (which correspond to clusters here), which are disposed w...