发明名称 |
EXTENDABLE LOOP-BACK TYPE PASSIVE OPTICAL NETWORK AND SCHEDULING METHOD AND APPARATUS FOR THE SAME |
摘要 |
An extendable loop-back type PON(Passive Optical Network) and a scheduler and scheduling method for the PON are provided to reduce a maintenance cost and an upgrading cost of a network by integrating advantages of TDM and WDM techniques. An OLT(Optical Line Terminal)(200) includes wavelength-variable optical transmitters(210) and wavelength-fixed optical transmitters(220). An RN(Remote Node)(250) includes optical combining/distributing units(270) that receive an optical signal transmitted from the wavelength-variable optical transmitters(210), distribute the received optical signal according to each wavelength, and transmit it to ONTs(Optical Network Terminals)(290). The ONTs(290) transmit uplink data to the OLT(200) by using the same wavelength as that of the optical signal received from the OLT(200).
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申请公布号 |
KR20070061369(A) |
申请公布日期 |
2007.06.13 |
申请号 |
KR20060121814 |
申请日期 |
2006.12.04 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM, TAE YEON;YOO, JEONG JU;LEE, KANG BOK;YOON, HYEON HO;KIM, BYOUNG WHI |
分类号 |
H04B10/035;H04B10/2581;H04L12/28 |
主分类号 |
H04B10/035 |
代理机构 |
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地址 |
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