ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,985, issued on Jan. 28, was assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT Co. LTD. (Beijing).

"Signal processing method, device and communication device" was invented by Xiaotao Ren (Beijing) and Rui Zhao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing method, a device and a communication device are provided. A signal processing method, applied to a first communication device and including: a first communication device sending a first reference signal to a second communication device; where the first reference signal is used for an automatic gain control measurement of at least two ports of the first reference signal...