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    • 51. 发明授权
    • Apparatus for transceiving packets in WDM-PON
    • 用于在WDM-PON中收发数据包的装置
    • US07330438B2
    • 2008-02-12
    • US11007017
    • 2004-12-07
    • Byoung Whi KimHyun Ho YunHyeong Ho Lee
    • Byoung Whi KimHyun Ho YunHyeong Ho Lee
    • H04L12/26
    • H04J14/0227H04J14/0241H04J14/0282H04J2014/0253
    • Provided is an apparatus that enables improvement of efficiency of up/downstream packet tensception by reflecting a plurality of variables of packet transmission, such as a temporal variety of packet lengths, asymmetry of downstream and upstream traffics, and an instantaneous burst of a traffic amount, on a loop-back-based WDM-PON. The apparatus includes: a downstream code sensor sensing an idle code from a downstream data frame to be transmitted to an optical network terminal (ONT); a trailer transmission controller receiving an idle code sensing signal from the downstream code sensor and forming a trailer of the downstream data frame (hereinafter, a downstream trailer) by adding overhead for a reception control of the downstream data frame by the ONT and a transmission control of an upstream data frame to be loop-back-transmitted from the ONT; an upstream code sensor receiving and sensing a trailer of the loop-back-transmitted upstream data frame (hereinafter, an upstream trailer); and a trailer reception controller receiving overhead information, which is added by the ONT, for a reception control of the upstream data frame from the upstream code sensor and controlling a reception of the upstream data frame.
    • 提供了一种能够通过反映分组传输的多个变量(诸如分组长度的时间种类,下行和上行流量的不对称性以及交通量的瞬时突发)来提高上/下分组张力的效率的装置, 在基于循环的WDM-PON上。 该装置包括:下游代码传感器,感测来自要发送到光网络终端(ONT)的下游数据帧的空闲代码; 拖车传输控制器,通过将由ONT对下游数据帧的接收控制加上开销,以及传输控制,从下游代码传感器接收空闲代码感测信号并形成下行数据帧的拖尾(以下称为下游拖车) 从ONT循环发送的上行数据帧; 上游代码传感器接收和感测环回发送的上行数据帧的尾部(以下称为上游拖车); 以及拖车接收控制器,其接收由ONT添加的开销信息,用于从上游代码传感器接收对上游数据帧的控制,并控制上行数据帧的接收。
    • 52. 发明授权
    • Internet protocol over WDM network, and packet communication system and method in the IPOW network
    • US06952533B2
    • 2005-10-04
    • US09751351
    • 2000-12-27
    • Byoung Whi KimChu Hwan YimJung Hee Hahn
    • Byoung Whi KimChu Hwan YimJung Hee Hahn
    • H04B10/20H04B10/213H04Q11/00H04B10/00H04J14/00
    • H04Q11/0066H04Q2011/0032H04Q2011/0064H04Q2011/0077H04Q2011/0086H04Q2011/0092
    • There is disclosed an internet protocol over WDM (IPOW) network structure which can directly route/transmit packets via a wavelength division multiplexing (WDM) optical communication network, and a packet transmission system in the network structure and method using the network structure. The internet protocol over wavelength division multiplexing (WDM) network structure comprising: a plurality of sub-ring for connecting n number of terminals (where n is a positive integer) to which unique user wave lengths are respectively allocated; a main ring for connecting n number of connection nodes connecting sub-rings to which unique user wave lengths are respectively allocated; a single sub-ring controller for controlling the flows of a packet transmitted/received inside the sub-ring and a packet transmitted/received between the sub-ring and the main ring; and a main ring controller connected to the single sub-ring and the main ring, and controlling the flow of a packet transmitted/received inside the main ring, wherein the terminals and connection nodes each add/drop only their own unique wavelength signals, the sub-ring controller and main ring controller drop all the wavelength division multiplexed signals to de-multiplex the signals, load each of the signals on their unique user wavelengths in their destination terminals, and then multiplex again the signals to transmit to the sub-ring and main ring, the sub-ring controller adds the identifying code (which is called a λ tag) of the sub-ring having a destination terminal, to the transmitted packet, and then transmits it to the main ring. The present invention has an advantage that it can route the packet at high speed, and also significantly simplifies a network structure. In addition, the present invention can process several tens of terabit traffic, expensive optical elements or optical systems, and a high-performance traffic routing apparatus such as a terra-bit level controller, etc.