The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2015
Filed:
Dec. 03, 2013
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
Embodiments of the present invention provide a method and a device for sending data in a passive optical network. A central office processing device records a downstream superframe number of a downstream data frame. A loop delay between the central office processing device and a terminal processing device is obtained according to the recorded downstream superframe number in combination with an upstream superframe number and an upstream frame synchronization sign in an upstream channel-associated data frame sent by the terminal processing device, so that the central office processing device may, after subtracting the loop delay, accurately determine, by using cached bandwidth map information and an obtained equalization delay of the terminal processing device, a start time point and an end time point for sending an upstream service data frame to an optical line terminal.