ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,906, issued on Oct. 21, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Radio frequency unit, antenna, and signal processing method" was invented by Xianghua Li (Shanghai), Zhongming Qin (Shanghai), Xin Yu (Shenzhen, China), Guanxi Zhang (Shanghai) and Jianping Zhao (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of this application disclose a radio frequency unit, an antenna, and a signal processing method. The method includes: receiving an uplink signal in a downlink slot, where the uplink signal includes signals of N frequency bands; filtering and amplifying the signals of the N frequency bands; conve...