	US 12,284,032 B2
	Method and apparatus for transmitting optical transport unit signal
Wei Su, Dongguan (CN); Maarten Petrus Joseph Vissers, Amsterdam (NL); and Qiuyou Wu, Dongguan (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jan. 18, 2022, as Appl. No. 17/578,288.
Application 17/578,288 is a continuation of application No. 17/231,504, filed on Apr. 15, 2021, granted, now 11,245,491.
Application 17/231,504 is a continuation of application No. 16/867,205, filed on May 5, 2020, granted, now 10,992,413, issued on Apr. 27, 2021.
Application 16/867,205 is a continuation of application No. PCT/CN2017/110457, filed on Nov. 10, 2017.
Prior Publication US 2022/0216940 A1, Jul. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 10/516 (2013.01); H04B 10/40 (2013.01); H04B 10/69 (2013.01); H04J 3/16 (2006.01); H04J 14/06 (2006.01); H04J 14/08 (2006.01); H04L 1/00 (2006.01); H04Q 11/00 (2006.01)

CPC H04L 1/0045 (2013.01) [H04B 10/40 (2013.01); H04B 10/516 (2013.01); H04B 10/69 (2013.01); H04J 3/1652 (2013.01); H04J 14/08 (2013.01); H04L 1/0041 (2013.01); H04Q 11/0062 (2013.01); H04Q 2011/0086 (2013.01)]

12 Claims

1. A method, comprising:

obtaining an n*100 G optical transport unit (OTUCn) signal;

obtaining n optical transport unit (OTU) signals from the OTUCn signal;

mapping the n OTU signals to m Flexible Optical transport network (FlexO) frames, wherein m is an integer and is greater than or equal to n/t, t is an integer and represents the ratio of a rate of one of the m FlexO frames to a rate of one of the n OTU signals, and wherein mapping the n OTU signals to the m FlexO frames comprises:

mapping the n OTU signals to n FlexO instance frames, wherein each of the OTU signals is mapped to a different FlexO instance frame; and

multiplexing every t of the n FlexO instance frames to generate the m FlexO frames, wherein each of the m FlexO frames comprises a plurality of interleaved FlexO instance frames; and

sending the m FlexO frames; and

wherein t is equal to 2 or 4, and the rate of one of the n OTU signals is about 100 Gigabit per second (Gbps), and

wherein the m FlexO frames are scrambled and forward error correction (FEC) coded.