公开(公告)号：US20240418933A1

公开(公告)日：2024-12-19

申请号：US18822041

申请日：2024-08-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yangbo Wu ,  Rui Yang ,  Yang Qin

IPC: G02B6/12 ,  H04B10/40 ,  H04J14/02

Abstract: Embodiments of this application disclose a baseband unit (BBU) and an access network device. The BBU includes M lasers, M switches (SWs), M photodetectors (PDs), an arrayed waveguide grating (AWG), M transmit ports, and M receive ports, where M is an integer greater than or equal to 2. An ith laser is coupled to an input end of an ith SW, an upper output end of the ith SW is coupled to an ith transmit port, and the AWG is separately coupled to lower output ends of the M switches SWs, the M PDs, and the M receive ports, where i=1, 2, . . . , or M. When a networking mode used by the BBU needs to be changed, an optical module or a component in the BBU does not need to be replaced, so that applicability, universality, and flexibility of the BBU can be improved.