公开(公告)号：US09794121B2

公开(公告)日：2017-10-17

申请号：US15189905

申请日：2016-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fuwang Zhang ,  Hao Zhang

IPC: H04J14/00 ,  H04L12/24 ,  H04B10/272 ,  H04B10/40 ,  H04B10/80 ,  H04Q11/00

CPC classification number: H04L41/082 ,  H04B10/272 ,  H04B10/40 ,  H04B10/80 ,  H04Q11/00 ,  H04Q11/0062 ,  H04Q2011/0079

Abstract: Embodiments of the present invention provide a system upgrade method and device, which can reduce a quantity and a time of service interruptions when an ONT and an OLT are upgraded. The method includes: detecting an upgrade triggering event, where the upgrade triggering event is used to instruct an optical network terminal ONT and an optical line terminal OLT to perform a concurrent upgrade; resetting the ONT to activate a preloaded ONT upgrade program; and restoring a service with the OLT. According to the embodiments of the present invention, an ONT and an OLT basically concurrently or synchronously perform upgrading and resetting, that is, a concurrent upgrade, so that a quantity and a time of service interruptions caused when the ONT and the OLT are upgraded are reduced, thereby improving user experience.