US 12,342,110 B2
Communication method based on passive optical network, related device, and system
Xuming Wu, Wuhan (CN); Dekun Liu, Wuhan (CN); and Shiwei Nie, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 27, 2022, as Appl. No. 17/730,668.
Application 17/730,668 is a continuation of application No. PCT/CN2020/111023, filed on Aug. 25, 2020.
Claims priority of application No. 201911032482.8 (CN), filed on Oct. 28, 2019.
Prior Publication US 2022/0256264 A1, Aug. 11, 2022
Int. Cl. H04B 10/00 (2013.01); H04J 14/02 (2006.01); H04Q 11/00 (2006.01); H04J 14/00 (2006.01)
CPC H04Q 11/0067 (2013.01) [H04J 14/0282 (2013.01); H04Q 11/0062 (2013.01); H04Q 2011/0064 (2013.01); H04Q 2011/0079 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication method, comprising:
sending, by an optical line terminal (OLT) of a passive optical network that comprises the OLT and a plurality of optical network units (ONUs), a first downstream frame to an activated ONU using at least one downstream wavelength path, wherein the activated ONU is one of the plurality of ONUs, the OLT and at least one ONU of the plurality of ONUs communicate with each other using the at least one downstream wavelength path and a plurality of upstream wavelength paths, wherein the first downstream frame comprises a first path identifier used to identify a first upstream wavelength path, and wherein the first upstream wavelength path is one of the plurality of upstream wavelength paths, and the first upstream wavelength path is selected by the OLT independently of the at least one downstream wavelength path; and
receiving, by the OLT, upstream service data from the activated ONU using the first upstream wavelength path.