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Registered METHOD AND SYSTEM FOR DETERMINING AND CONTROLLING POWER OF OPTICAL TRANSMITTER OF OPTICAL NETWORK UNIT FOR TIME AND WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
이미지 확대
METHOD AND SYSTEM FOR DETERMINING AND CONTROLLING POWER OF OPTICAL TRANSMITTER OF OPTICAL NETWORK UNIT FOR TIME AND WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK
- Inventors
- Yoo Hark, Lee Dongsoo, Kim Geun Yong, Kim Sung Chang, Kim Young Sun, Kim Hee Do, Lee Han Hyub, Kim Jaein
- Application No.
- 15392334 (2016.12.28)
- Publication No.
- 20170111119 (2017.04.20)
- Registration No.
- 9825710 (2017.11.21)
- Country
- UNITED STATES
- Project Code
- 13VI2900, 하향 40Gbps 및 상향 10Gbps 전송속도를 지원하는 차세대 수동형 광가입자망 시스템 기술 개발, Yoo Hark
- Abstract
- Disclosed are a method and system for determining and controlling power of an optical transmitter of an optical network unit (ONU) for a time and wavelength division multiplexing passive optical network (TWDM-PON). The system includes an RSSI collector configured to collect received signal strength indication (RSSI) information from upstream optical signals received from the ONUs connected to optical line terminal (OLT) ports, an ONU power level determiner configured to gather the pieces of RSSI information about the ONUs from the RSSI collector, and to determine power of optical transmitters of the ONUs based on the gathered information, and a power mode controller configured to receive power mode setting information of the optical transmitters of the ONUs from the ONU power level determiner, and to generate a physical layer operation and maintenance (PLOAM) message to control power modes of the ONUs based on the received power mode setting information.
- KSP Keywords
- Mode controller, Optical Line Terminal, Optical Network Units(ONU), Optical networks, Passive optical network, Physical Layer, Power Levels, Power mode, Received Power, Received Signal Strength Indication, Signal Strength, TWDM-PON, Wavelength-Division multiplexing(WDM), Wavelength-division-multiplexing passive optical network(WDMPON), division multiplexing, operation and maintenance, optical transmitter, received signal strength(RSS), time and wavelength division multiplexing