ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,490,342, issued on Dec. 2, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Network device and method for determining power supply relationship" was invented by Jinfeng Li (Shenzhen, China), Chunyuan Chen (Shanghai), Bingxin Du (Shanghai) and Shenghao Liu (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "This application discloses a network device and a method. The network device includes a plurality of power supply units, a plurality of radio frequency units, and a control unit. Each of the plurality of radio frequency units is connected to at least one of the plurality of power supply units. The control unit is connected to both ...