ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,439, issued on March 17, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Short-range communication method and apparatus" was invented by Xingqing Cheng (Beijing), Lei Gao (Beijing), Lei Wan (Beijing), Changqing Yang (Beijing) and Jian Wang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A short-range communication method includes that a first node receives at least one piece of node information from at least one node; and the first node controls the first node to establish time-frequency synchronization with a second node that is in the at least one node and that belongs to a second synchronization area, where node informa...