ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,254, issued on May 5, was assigned to Lenovo (Beijing) Ltd. (Beijing).

"Method and apparatus for a data transmission over a tunnel between donor distributed units" was invented by Yibin Zhuo (Beijing), Mingzeng Dai (Shanghai), Lianhai Wu (Beijing) and Le Yan (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present disclosure relate to communication in an IAB network. According to some embodiments of the disclosure, a source donor distributed unit (DU) of a base station comprises a processor and a transceiver coupled to the processor. The source donor DU is coupled to a donor centralized unit (CU) of the base station, and the...