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Registered Time and Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) system and Communication Connection Method thereof
이미지 확대
Time and Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) system and Communication Connection Method thereof
- Inventors
- Lee Han Hyub, Lee Sang Soo, Doo Kyeong Hwan, Lee Jong Hyun
- Application No.
- 14092260 (2013.11.27)
- Publication No.
- 20140161461 (2014.06.12)
- Registration No.
- 9136968 (2015.09.15)
- Country
- UNITED STATES
- Project Code
- 12PI1900, High-capacity WDM-PON system for next-generation multi-service applicable access platform, Lee Sang Soo
- Abstract
- A Time Wavelength Division Multiplexing-Passive Optical Network (TWDM-PON) system and a communication link method thereof are provided. The communication link method is a method whereby an Optical Network Unit (ONU) which has established communication link to one Optical Line Terminal (OLT) establishes communication link to a different OLT. The ONU receives a wavelength change instruction to change a wavelength thereof to an operating wavelength assigned to the different OLT, and change the wavelength in response to the wavelength change instruction to synchronize to a downstream signal of the operating signal. In addition, the ONU receives an upstream discovery grant signal from the different OLT, and transmits an acknowledgement message to notify the receipt of the upstream discovery grant signal, so that the ONU establishes communication link to the different OLT.
- KSP Keywords
- Communication link, Operating Wavelength, Optical Line Terminal, Optical Network Units(ONU), Optical networks, Passive optical network, TWDM-PON, Wavelength-Division multiplexing(WDM), Wavelength-division-multiplexing passive optical network(WDMPON), connection method, division multiplexing, time and wavelength division multiplexing, time wavelength(TW)