ALEXANDRIA, Va., July 23 -- United States Patent no. 12,369,189, issued on July 22, was assigned to QUALCOMM Inc. (San Diego).
"Listen before talk techniques for wireless communications systems" was invented by Changlong Xu (Beijing), Xiaoxia Zhang (San Diego), Jing Sun (San Diego) and Tao Luo (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, systems, and devices for wireless communications are described. A wireless device such as a UE or a base station may implement one or more listen before talk (LBT) techniques. The wireless device may determine to transmit a communication during a transmission time interval on multiple subbands of a radio frequency spectrum band. The wireless device may ...