US 11,757,555 B2
Method and apparatus for an optical transceiver
Zhiping Jiang, Kanata (CA); Jun Luo, Dongguan (CN); and Haitao Sun, Ottawa (CA)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Nov. 9, 2021, as Appl. No. 17/521,984.
Application 17/521,984 is a continuation of application No. PCT/CN2019/095790, filed on Jul. 12, 2019.
Prior Publication US 2022/0069934 A1, Mar. 3, 2022
Int. Cl. H04B 10/071 (2013.01); H04J 14/02 (2006.01)
CPC H04J 14/0227 (2013.01) [H04B 10/071 (2013.01); H04J 14/0212 (2013.01); H04J 14/0213 (2013.01)] 19 Claims
OG exemplary drawing
 
9. A method implemented in an optical transceiver, comprising:
generating a first optical time domain reflectometer (OTDR) signal and a second OTDR signal, the second OTDR signal being a delayed version of the first OTDR signal;
generating a first optical supervisory channel (OSC) signal and a second OSC signal, the second OSC signal being a delayed version of the first OSC signal;
interleaving the first OSC signal and the first OTDR signal;
interleaving the second OSC signal and the second OTDR signal;
transmitting the first OSC signal interleaved with the first OTDR signal on a first optical fiber; and
transmitting the second OSC signal interleaved with the second OTDR signal on a second optical fiber;
wherein, at any time during operation of the optical transceiver, at least one of the first and second OSC signals is present on a corresponding one of the first and second optical fibers.