公开(公告)号：US20050135365A1

公开(公告)日：2005-06-23

申请号：US10944328

申请日：2004-09-17

申请人： Jung Sung ,  Tae Kim ,  Hyeong Lee

发明人： Jung Sung ,  Tae Kim ,  Hyeong Lee

IPC分类号： H04L25/02 ,  H04J3/26 ,  H04L12/18 ,  H04L12/28 ,  H04L12/413

CPC分类号： H04L12/18

摘要： There is provided a method for supporting a multicast service in an Ethernet passive optical network system. Since an Optical Network Unit (ONU) system monitors an IGMP (Internet Group Management Protocol) message and informs the monitored result of an Optical Line Terminal (OLT) system so that the OLT system creates L2 multicast forwarding table using a multicast address and ONU ID information in a PON port, the ONU system transmits the multicast packet only to a corresponding subscriber on the basis of the L2 multicast forwarding table when receiving a multicast packet. Therefore, it is possible to transfer a multicast packet only to a specific ONU system belonging to a corresponding multicast address group among a plurality of ONU systems.

摘要翻译： 提供了一种在以太网无源光网络系统中支持组播业务的方法。 由于光网络单元（ONU）系统监视IGMP（因特网组管理协议）消息，并通知光线路终端（OLT）系统的监控结果，使得OLT系统使用组播地址和ONU ID创建L2组播转发表 在PON端口中的信息中，当接收到组播数据包时，ONU系统基于L2组播转发表将组播数据包发送给对应的用户。 因此，可以将多播分组仅传送到属于多个ONU系统中的对应多播地址组的特定ONU系统。

公开(公告)号：US20050074238A1

公开(公告)日：2005-04-07

申请号：US10910757

申请日：2004-08-03

申请人： Jung Sung ,  Tae Kim ,  Hyeong Lee ,  Jae Huh

发明人： Jung Sung ,  Tae Kim ,  Hyeong Lee ,  Jae Huh

IPC分类号： H04L12/28 ,  H04J14/00 ,  H04L12/56 ,  H04Q11/00

CPC分类号： H04L47/2433 ,  H04L47/10 ,  H04L47/22 ,  H04L47/2441 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0084

摘要： An apparatus and method for supporting quality of services (QoS) for respective subscriber classes for an Ethernet passive optical network (E-PON) are provided. The method for supporting QoS includes specifying bandwidths and subscriber classes for respective ports for a plurality of subscriber termination systems connected to a service provider termination system; based on the bandwidth information, allocating bandwidths for respective subscriber ports of the subscriber termination systems; based on the subscriber class information, assigning IP addresses to respective subscriber of the subscriber termination systems according to subscriber class; and by using the bandwidths and IP addresses, supporting QoS according to subscriber class in transmitting and receiving data between the service provider termination system and the subscriber termination systems.

摘要翻译： 提供了一种用于支持以太网无源光网络（E-PON）的各个用户等级的服务质量（QoS）的设备和方法。 用于支持QoS的方法包括为连接到服务提供商终端系统的多个用户终端系统指定相应端口的带宽和订户等级; 基于所述带宽信息，为所述用户终端系统的各个用户端口分配带宽; 基于用户类信息，根据订户类别将IP地址分配给用户终端系统的相应订户; 并通过使用带宽和IP地址，在服务提供商终端系统和用户终端系统之间发送和接收数据时根据用户等级支持QoS。

公开(公告)号：US20050129030A1

公开(公告)日：2005-06-16

申请号：US10934605

申请日：2004-09-02

申请人： Su Choi ,  Tae Kim ,  Hyeong Lee

发明人： Su Choi ,  Tae Kim ,  Hyeong Lee

IPC分类号： H04L12/28 ,  H04L12/24

CPC分类号： H04L41/145

摘要： A multiple shared LAN emulation method in an EPON based on a group ID is provided. A group ID (GID) is defined, and rules for processing an Ethernet frame are defined in each OLT and each ONU using a mode value, an LLID value, and a GID value so that a plurality of LANs are established in the EPON. Thus, a plurality of LANs are established in the OLT, and an independent network is provided to each of a plurality of service providers.

摘要翻译： 提供了基于组ID的EPON中的多个共享LAN仿真方法。 定义组ID（GID），并且在每个OLT和每个ONU中使用模式值，LLID值和GID值来定义用于处理以太网帧的规则，使得在EPON中建立多个LAN。 因此，在OLT中建立多个LAN，并且向多个服务提供商中的每一个提供独立的网络。

公开(公告)号：US20050083950A1

公开(公告)日：2005-04-21

申请号：US10868479

申请日：2004-06-14

申请人： Su Choi ,  Tae Kim ,  Hyeong Lee

发明人： Su Choi ,  Tae Kim ,  Hyeong Lee

IPC分类号： H04L12/28 ,  H04L1/00 ,  H04Q11/00

CPC分类号： H04Q11/0067 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0077

摘要： Disclosed herein is a shared Local Area Network (LAN) emulation method and apparatus. The method includes the following four steps. At the first step, a Logical Link Identifier (LLID) management table is set up to assign unique LLIDs to a plurality of Optical Network Units (ONUs) and manage the assigned LLIDs so as to identify the plurality of ONUs connected to a single Optical Line Terminal (OLT). Thereafter, a MAC address table is set up for the LLIDs to learn MAC addresses of the ONUs. Thereafter, the unique LLIDs are assigned to ONUs when the ONUs request registration from the OLT. Finally, data frames, which are received by a Shared LAN Emulation (SLE) layer of the OLT, are bridged using the LLIDs, VIDs of Virtual LANs to which the ONUs belong and destination MAC addresses of the data frames so as to provide a single matched port between a Logical Link Control (LLC) layer and a MAC layer of the OLT.

摘要翻译： 这里公开了共享的局域网（LAN）仿真方法和装置。 该方法包括以下四个步骤。 在第一步，建立逻辑链路标识符（LLID）管理表以将多个光网络单元（ONU）分配唯一的LLID并管理所分配的LLID，以便识别连接到单个光线路的多个ONU 终端（OLT）。 此后，为LLID建立MAC地址表，以学习ONU的MAC地址。 此后，当ONU从OLT请求注册时，将唯一的LLID分配给ONU。 最后，由OLT的共享LAN仿真（SLE）层接收的数据帧使用LLID，ONU所属的虚拟LAN的VID和数据帧的目标MAC地址进行桥接，以提供单个 逻辑链路控制（LLC）层和OLT的MAC层之间的匹配端口。

公开(公告)号：US20050094660A1

公开(公告)日：2005-05-05

申请号：US10862103

申请日：2004-06-03

申请人： Sang Lee ,  Kang Lee ,  Heyung Lee ,  Hyeong Lee

发明人： Sang Lee ,  Kang Lee ,  Heyung Lee ,  Hyeong Lee

IPC分类号： H04B10/02 ,  H04L12/43 ,  H04Q11/00

CPC分类号： H04Q11/0067 ,  H04Q11/0066 ,  H04Q11/0071

摘要： Provided are an optical network unit (ONU) and method for servicing Ethernet-based digital cable broadcasting. The ONU includes a received frame classifier, which receives an Ethernet frame from an OLT and classifies the Ethernet frame into a digital broadcasting frame or a nonbroadcasting frame; a broadcasting frame classifier, which sorts the digital broadcasting frame according to a channel; and a broadcasting frame processing unit, which examines a channel requested by a subscriber and transmits a broadcasting frame corresponding to the channel to the subscriber.

摘要翻译： 提供了一种用于维护基于以太网的数字有线广播的光网络单元（ONU）和方法。 ONU包括接收到的帧分类器，其从OLT接收以太网帧，并将以太网帧分类成数字广播帧或非广播帧; 广播帧分类器，其根据信道对数字广播帧进行排序; 以及广播帧处理单元，其检查由用户请求的频道，并将与频道对应的广播帧发送给用户。

公开(公告)号：US20050149821A1

公开(公告)日：2005-07-07

申请号：US11004401

申请日：2004-12-03

申请人： Hoon Lee ,  Tae Yoo ,  Hyeong Lee

发明人： Hoon Lee ,  Tae Yoo ,  Hyeong Lee

IPC分类号： G06F11/00 ,  H03M13/00 ,  H03M13/25

CPC分类号： H03M13/251 ,  H03M13/1515 ,  H03M13/25 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0084

摘要： An apparatus for transmitting a FEC frame is provided. The apparatus includes: a selector determining whether to perform FEC encoding on data to be transmitted; a Reed-Solomon encoding assembler receiving the data on which FEC encoding is to be performed as determined by the selector, and dividing the data into k-byte message blocks (k is a positive integer) for output; a Reed-Solomon encoder receiving the message blocks and performing Reed-Solomon encoding on the message blocks; and an output controller receiving an input parity generated by the Reed-Solomon encoding, and outputting the message block and the parity sequentially or outputting the data on which FEC encoding is not to be performed as determined by the selector. In order to correct an error caused by a transmission medium using FEC in a Reed-Solomon code type, FEC encoding/decoding of a frame is performed. A total transmission delay time is not influenced when FEC is bypassed, a delay caused by a shortened codeword is minimized, and a FEC encoding/decoding delays for frames having different lengths are equalized.

摘要翻译： 提供了一种用于发送FEC帧的装置。 该装置包括：选择器，确定是否对要发送的数据执行FEC编码; 接收由选择器确定的要进行FEC编码的数据的里德 - 所罗门编码汇编器，并将数据划分为k字节消息块（k为正整数）以供输出; 接收消息块的Reed-Solomon编码器，并对消息块执行Reed-Solomon编码; 以及输出控制器，接收由Reed-Solomon编码产生的输入奇偶校验，并顺序输出消息块和奇偶校验，或者输出由选择器确定的不进行FEC编码的数据。 为了校正利用Reed-Solomon码类型的使用FEC的传输介质引起的错误，执行帧的FEC编码/解码。 当FEC被旁路时，总传输延迟时间不受影响，由缩短的码字引起的延迟最小化，并且对具有不同长度的帧进行FEC编码/解码延迟相等。

公开(公告)号：US20050129402A1

公开(公告)日：2005-06-16

申请号：US10970348

申请日：2004-10-20

申请人： Byoung Kim ,  Jae Park ,  Hyeong Lee ,  Jae Yang

发明人： Byoung Kim ,  Jae Park ,  Hyeong Lee ,  Jae Yang

IPC分类号： G02B6/12 ,  G02B6/122 ,  G02B6/124 ,  G02B6/30 ,  G02B6/34 ,  H04B10/272 ,  H04J14/02

CPC分类号： H04J14/02 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1228 ,  G02B6/124 ,  G02B6/29322 ,  G02B6/29395 ,  G02B6/29398 ,  G02B6/305 ,  G02B2006/12135 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： A PLC-based wavelength-tunable WDM-PON system with an optical wavelength alignment function, the WDM-PON system comprises: a PLC platform formed on a silicon substrate; a semiconductor chip comprising an active region generating light and a passive region located in front of the active region for vertically coupling the light generated in the active region; a planar lightwave circuit (PLC) waveguide; one portion of a PLC platform where the semiconductor chip is surface mounted; waveguide Bragg grating (WBG) formed at a predetermined location of the PLC waveguide; a directional coupler transferring an optical power by permitting the passive region to approach the PLC waveguide; a heater terminal, which is formed on the WBG; and a V-groove for attaching an optical fiber to another end of the PLC waveguide. Accordingly, a WDM-PON system having a function of realizing a cost-effective optical wavelength alignment can be provided.

摘要翻译： 一种具有光波长对准功能的基于PLC的波长可调WDM-PON系统，WDM-PON系统包括：形成在硅衬底上的PLC平台; 半导体芯片，其包括产生光的有源区域和位于有源区域前方的无源区域，用于垂直耦合在有源区域中产生的光; 平面光波导（PLC）波导; PLC平台的一部分，其中半导体芯片被表面安装; 波导布拉格光栅（WBG），形成在PLC波导的预定位置; 定向耦合器，通过允许无源区域接近PLC波导来传送光功率; 在WBG上形成的加热器端子; 以及用于将光纤连接到PLC波导的另一端的V形槽。 因此，可以提供具有实现成本有效的光波长对准的功能的WDM-PON系统。

公开(公告)号：US20050123300A1

公开(公告)日：2005-06-09

申请号：US10968423

申请日：2004-10-18

申请人： Byoung Kim ,  Hyeong Lee ,  Jae Yang

发明人： Byoung Kim ,  Hyeong Lee ,  Jae Yang

IPC分类号： H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025

摘要： Provided is a WDM-PON system based on a wavelength-tunable ECL. A method of controlling an upstream optical wavelength of an ONT in WDM-PON system, the method comprises: determining upstream optical wavelength information of the ONT corresponding to a downstream optical wavelength predetermined to the ONT newly installed by being connected to a network; in an OLT, loading the determined upstream optical wavelength information onto the downstream optical wavelength assigned to the ONT and transmitting the loaded upstream optical wavelength information to the ONT; in the ONT, generating an upstream optical wavelength based on the upstream optical wavelength information transmitted by being loaded on the downstream optical wavelength from the OLT; and in the ONT, loading upstream data onto the generated upstream optical wavelength and transmitting the loaded upstream data to the OLT.

摘要翻译： 提供了一种基于波长可调ECL的WDM-PON系统。 一种在WDM-PON系统中控制ONT的上行光波长的方法，该方法包括：通过连接到网络，确定新安装的ONT对应于下行光波长的上行光波长信息; 在OLT中，将确定的上行光波长信息加载到分配给ONT的下行光波长，并将加载的上行光波长信息发送到ONT; 在ONT中，基于通过从OLT向下游光波长加载而发送的上行光波长信息生成上行光波长; 并且在ONT中，将上行数据加载到生成的上行光波长上，并将加载的上行数据传送到OLT。

公开(公告)号：US20060012496A1

公开(公告)日：2006-01-19

申请号：US11231415

申请日：2005-09-20

申请人： Sungsoo Kang ,  Tae Yoo ,  Hyeong Lee

发明人： Sungsoo Kang ,  Tae Yoo ,  Hyeong Lee

IPC分类号： H03M7/00 ,  H03M13/00

CPC分类号： H03M5/02 ,  H03M5/145 ,  H03M7/04

摘要： A dual mode decoder is provided. The dual mode decoder includes an MB810 decoder; an 8B/10B decoder; a mode detection unit which detects a decoder to be used as an operation decoder between the MB810 decoder and the 8B/10B decoder; a first low pass filter which when the MB810 decoder is determined as the operation decoder, removes a predetermined frequency bandwidth from a 10-bit code input from the outside; a second low pass filter which when the 8B/10B decoder is determined as the operation decoder, removes a predetermined frequency bandwidth from a 10-bit code input from the outside; an IDLE code detection unit which detects IDLE code from the 10-bit code and transfers to the mode detection unit; a first switch unit which according to the decoder determined as the operation decoder, selectively outputs the 10-bit code input from the first low pass filter and the second low pass filter; a parallel conversion unit which converts the 10-bit code input from the first switch into a parallel code and outputs a 10-bit parallel code; a first selection unit which provides the 10-bit parallel code to the decoder determined as the operation decoder between the MB810 decoder and the 8B/10B decoder; and a second selection unit which selectively outputs an 8-bit code corresponding to the 10-bit parallel code input from the decoder determined as the operation decoder.

摘要翻译： 提供双模式解码器。 双模式解码器包括一个MB810解码器; 一个8B / 10B解码器; 模式检测单元，检测要用作MB810解码器和8B / 10B解码器之间的操作解码器的解码器; 第一低通滤波器，当MB810解码器被确定为操作解码器时，从外部输入的10位代码中去除预定的频率带宽; 第二低通滤波器，当8B / 10B解码器被确定为操作解码器时，从外部输入的10位代码去除预定的频率带宽; IDLE码检测单元，其从10位代码检测IDLE码并传送到模式检测单元; 根据确定为操作解码器的解码器，选择性地输出从第一低通滤波器和第二低通滤波器输入的10位代码的第一开关单元; 并行转换单元，其将从第一开关输入的10位代码转换为并行代码并输出10位并行代码; 第一选择单元，其将10位并行码提供给被确定为MB810解码器和8B / 10B解码器之间的操作解码器的解码器; 以及第二选择单元，其选择性地输出与从被确定为操作解码器的解码器输入的10位并行码相对应的8位代码。

公开(公告)号：US20050129404A1

公开(公告)日：2005-06-16

申请号：US11005930

申请日：2004-12-06

申请人： Byoung Kim ,  Seung Cho ,  Hyeong Lee

发明人： Byoung Kim ,  Seung Cho ,  Hyeong Lee

IPC分类号： G02B6/34 ,  H04H1/00 ,  H04H20/69 ,  H04J14/02

CPC分类号： G02B6/29313 ,  G02B6/12019 ,  G02B6/2931 ,  H04H20/69 ,  H04J14/0226 ,  H04J14/0227 ,  H04J14/0232 ,  H04J14/0234 ,  H04J14/0238 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252

摘要： Provided is an apparatus for providing a broadcasting service through an overlay structure in a WDM-PON. The apparatus comprises: a first grating section receiving a multiplexed signal of N data communication optical wavelength signals and a broadcasting optical wavelength signal, which have separate wavelengths, transmitted from an optical line terminal (OLT) and wavelength-demultiplexing the multiplexed signal; a mirror reflecting the broadcasting optical wavelength signal wavelength-demultiplexed by the first grating section; and a second grating section receiving the reflected broadcasting optical wavelength signal and splitting it to all subscriber ports.

摘要翻译： 提供了一种通过WDM-PON中的覆盖结构提供广播服务的装置。 该装置包括：接收从光线路终端（OLT）发送的具有分离波长的N个数据通信光波长信号的复用信号和广播光波长信号的第一光栅部分，并对复用的信号进行波长分离; 反射由第一光栅部分波分解的广播光波长信号的反射镜; 以及接收反射的广播光波长信号并将其分割成所有用户端口的第二光栅部分。