公开(公告)号：US10270539B2

公开(公告)日：2019-04-23

申请号：US15167567

申请日：2016-05-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shanfu Li ,  Kai Zhang ,  Daiqi Zhou ,  Dawei Huo ,  Kangmin Huang

IPC: H04B10/80 ,  H04M11/06 ,  H02J7/02 ,  H02J50/10 ,  H04M19/08 ,  H04Q11/00 ,  H04W4/80 ,  H04L12/10 ,  H04W84/12

Abstract: The present invention provides a communications method of a modem, including: determining a current power supply mode; if it is determined that the current power supply mode is that a network device is used to supply power by using a copper twisted pair, switching a communications interface from a fiber interface to an electrical interface, where the electrical interface connects to the network device by using the copper twisted pair and the fiber interface connects to a passive optical network by using an optical fiber. The present invention further provides a modem, and a wireless charging method and device. According to the technical solutions provided in the present invention, it is implemented that a service can still be provided after an external power supply is powered off.