公开(公告)号：KR1020080068408A

公开(公告)日：2008-07-23

申请号：KR1020070006180

申请日：2007-01-19

Applicant: 삼성전자주식회사

Inventor： 이민효

IPC: H04L12/18 ,  H04L29/06 ,  H04B10/25

CPC classification number: H04L12/2861 ,  H04L12/2885 ,  H04L61/103

Abstract: A point-to-multipoint communication method in an Ethernet-based PON(Passive Optical Network) and a device thereof are provided to solve a problem that communication is not available among ONUs(Optical Network Units) when traffic is abandoned, and to enable an OLT(Optical Line Terminal) to disguise MAC(Medium Access Control) addresses of the ONUs to send an ARP(Address Resolution Protocol) response on behalf of the ONUs, thereby preventing a potential risk of hacking. An OLT(30) comprises as follows. A proxy ARP plus block(302) searches ARP tables of all interfaces including an interface which transmits an ARP request, and transmits an ARP response to the corresponding destination even when transmitting/receiving interfaces are the same. An L2/L3 switch block(300) individually relays communication between the proxy ARP plus block and an L2/L3 switch block and communication between ONUs(304,306).

Abstract translation: 提供了一种基于以太网的PON（Passive Optical Network，无源光网络）中的点对多点通信方法及其装置，用于解决当业务被放弃时在ONU（光网络单元）之间通信不可用的问题， OLT（光线路终端）伪装ONU的MAC（介质访问控制）地址，代表ONU发送ARP（地址解析协议）响应，从而防止黑客入侵的潜在风险。 OLT（30）包括如下。 代理ARP加块（302）搜索包括发送ARP请求的接口的所有接口的ARP表，并且即使在发送/接收接口相同时也发送ARP响应到对应的目的地。 L2 / L3交换块（300）独立地中继代理ARP加块和L2 / L3交换块之间的通信以及ONU（304,306）之间的通信。

公开(公告)号：KR100640464B1

公开(公告)日：2006-10-30

申请号：KR1020020067037

申请日：2002-10-31

Applicant: 삼성전자주식회사

Inventor： 임세윤 ,  송재연 ,  김수형 ,  이민효 ,  김진희 ,  김아정 ,  강대업

IPC: H04L12/28

CPC classification number: H04Q11/0062 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0064 ,  H04Q2011/0079 ,  H04Q2011/0096

Abstract: 본 발명은 이더넷 수동형광가입자망에서 MAC 클라이언트(client)로부터 전송되는 MAC 클라이언트 데이터와 OAM 컨트롤에서 만들어진 OAM 패킷 데이터를 MAC으로 전송하는 OAM 부계층의 컨트롤 멀티플렉서에 있어서, 상기 OAM 컨트롤에서 OAM 패킷 데이터가 발생하면, 상기 MAC 클라이언트에서 전송 대기중인 MAC 클라이언트 데이터보다 높은 우선순위(Priority)를 상기 OAM 패킷 데이터에 부여하는 단계와, 상기 OAM 패킷 데이터와 상기 MAC 클라이언트 데이터를 상기 부여된 우선순위에 따라 멀티플렉싱하여 상기 MAC으로 전송하는 단계를 포함하는 것을 특징으로 한다.
수동형광가입자망, OAM

公开(公告)号：KR100506209B1

公开(公告)日：2005-08-05

申请号：KR1020030038883

申请日：2003-06-16

Applicant: 삼성전자주식회사

Inventor： 오호일 ,  이민효 ,  김수형 ,  김영석 ,  오윤제 ,  박태성 ,  김영천 ,  박혁규 ,  안계현 ,  한경은

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04Q11/0066 ,  H04Q2011/0064

Abstract: 본 발명은 이더넷 수동 광 가입자망(Ethernet Passive Optical Network: EPON)에 있어서 OLT와 ONU(Optical Network Unit)에서의 대역폭(bandwidth) 동적 할당 방법에 관한 것이다. 본 발명에 따른 OLT의 스케줄러는 ONU로부터 전송된 REPORT 메시지 내의 다중 큐 요청 정보를 기반으로 스케줄링을 한 후 단일의 ONU에 대해 통합된 스케줄링 결과를 게이트 메시지를 통해 전송한다. 또한 본 발명에 따라 ONU의 스케줄러는 OLT로부터 할당받은 대역폭을 기반으로 스케줄링을 수행하고 자신에게 속해있는 각 큐에게 전송 대역폭을 할당한다.

公开(公告)号：KR1020050011788A

公开(公告)日：2005-01-31

申请号：KR1020030050768

申请日：2003-07-23

Applicant: 삼성전자주식회사

Inventor： 오호일 ,  김수형 ,  이민효 ,  김영석 ,  오윤제 ,  박태성 ,  안계현 ,  강동국 ,  박혁규 ,  조충건 ,  김영천

IPC: H04L12/28

CPC classification number: H04L47/10 ,  H04B10/27 ,  H04L47/215

Abstract: PURPOSE: A method and apparatus for controlling downlink traffic in an EPON(Ethernet Passive Optical Network) are provided to control impartiality among ONUs(Optical Network Units) by transmitting downlink data by a token allocated to each ONU and accordingly guaranteeing a contracted band of each ONU. CONSTITUTION: The different number of tokens are generated according to a contracted transmission rate of each ONU(S100). The certain number of tokens for guaranteeing a minimum transmission rate of each ONU is stored separately(S200). When downlink data is generated(S300), the downlink data is transmitted to a target ONU by applying a certain downlink traffic control algorithm(S400).

Abstract translation: 目的：提供一种用于控制EPON（以太网无源光网络）中的下行流量的方法和装置，通过分配给每个ONU的令牌发送下行链路数据来控制ONU（Optical Network Unit）之间的公正性，从而保证每个ONU的收缩频带 ONU。 构成：根据每个ONU的合同传输速率生成不同数量的令牌（S100）。 分别存储用于保证每个ONU的最小传输速率的一定数量的令牌（S200）。 当生成下行链路数据时（S300），通过应用一定的下行链路业务量控制算法将下行链路数据发送到目标ONU（S400）。

公开(公告)号：KR1020040026271A

公开(公告)日：2004-03-31

申请号：KR1020020057652

申请日：2002-09-23

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  김진희 ,  김아정 ,  이민효 ,  임세윤 ,  김수형 ,  윤종호 ,  오호일

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04Q11/0066 ,  H04Q2011/0064 ,  H04Q2011/0086

Abstract: PURPOSE: A method for assigning a data transmission band of an ONU(Optical Network Unit) in a gigabit Ethernet PON(Passive Optical Network) and a message field structure therefor are provided to improve the fairness among a plurality of ONUs by assigning the data transmission band with respect to a transmission bandwidth necessary for an OLT(Optical Line Termination) and the number of end users connected to each ONU. CONSTITUTION: An ONU(110) grasps the number of end users connected to a plurality of ONUs and a transmission bandwidth necessary for the end users(201). The ONU(110) generates a message including information about the necessary transmission bandwidth(203), and transmits the generated message to an OLT(100)(205). The OLT(100) analyzes messages received from a plurality of the ONUs(207), and assigns a band according to the number of the end users and necessary transmission bandwidth information(209).

Abstract translation: 目的：提供一种用于在千兆以太网PON（被动光网络）中分配ONU（光网络单元）的数据传输频带及其消息字段结构的方法，以通过分配数据传输来提高多个ONU之间的公平性 相对于OLT（光线路终端）所需的传输带宽和连接到每个ONU的终端用户的数量。 构成：ONU（110）掌握与多个ONU连接的最终用户的数量以及最终用户所需的传输带宽（201）。 ONU（110）产生包含关于必要传输带宽（203）的信息的消息，并将生成的消息发送到OLT（100）（205）。 OLT（100）分析从多个ONU（207）接收到的消息，并且根据终端用户的数量和必要的传输带宽信息来分配频带（209）。

公开(公告)号：KR1020040020781A

公开(公告)日：2004-03-09

申请号：KR1020020060803

申请日：2002-10-05

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  김아정 ,  김진희 ,  임세윤 ,  이민효 ,  김수형

IPC: H04L12/855 ,  H04B10/25

CPC classification number: H04J14/0227 ,  H04Q11/0067

Abstract: PURPOSE: A method for transmitting an OAM(Operation, Administration and Maintenance) packet in a PON(Passive Optical Network) is provided to prevent blocking of even an OAM packet using a MAC client packet format in a PAUSE operation by correcting the PAUSE operation defined in IEEE802.3 Clause31 and Annex31B. CONSTITUTION: In transmitting a OAM packet in an EPON(Ethernet PON) including one OLT(Optical Line Terminal) and at least one ONU(Optical Network Unit) connected to the OLT, an MAC control layer recognizes an OAM frame so as not to block OAM data in a PAUSE operation, identifies the recognized OAM data and transmits it to a lower layer of the MAC. When PAUSE occurs at a point 'A', the OAM packet can be transmitted by the method 2 and, at a point 'B', the OAM packet can be transmitted by necessarily using both the method 1 and the method 2.

Abstract translation: 目的：提供一种在PON（Passive Optical Network，无源光网络）中发送OAM（操作，管理和维护）分组的方法，以防止PAUSE操作中使用MAC客户端分组格式的OAM分组甚至通过修正PAUSE操作 在IEEE802.3条款31和附件31B中。 规定：在连接到OLT的一个OLT（光线路终端）和至少一个ONU（光网络单元）的EPON（以太网PON）中发送OAM分组时，MAC控制层识别OAM帧，以便不阻塞 OAM数据在PAUSE操作中，识别识别的OAM数据并将其发送到MAC的下层。 当PAUSE发生在点'A'时，可以通过方法2发送OAM分组，并且在点'B'处，可以通过必须使用方法1和方法2来传输OAM分组。

公开(公告)号：KR100419425B1

公开(公告)日：2004-02-21

申请号：KR1020020005875

申请日：2002-02-01

Applicant: 삼성전자주식회사

Inventor： 성환진 ,  박태성 ,  원신희 ,  이민효

IPC: H04L12/28

CPC classification number: H04Q11/0062 ,  H04L7/06 ,  H04L2007/045 ,  H04Q11/0066 ,  H04Q11/0067 ,  H04Q2011/0094

Abstract: An idle pattern output-control circuit used in a point-to-multipoint communication based Gigabit Ethernet-passive optical network (GE-PON) is provided to prevent data loss caused by an idle pattern in a Gigabit-Ethernet controller. In a GE-PON having an optical-line terminal (OLT), a plurality of optical-network units (ONUs) connected to each other via an optical-distribution network (ODN), a media-access controller (MAC), and a physical-coding sublayer (PCS), in which the PCS transmits idle-pattern data to a serializer/deserializer (SERDES) when there is no data to be transmitted to the OLT, an idle-pattern output-control circuit comprising a data converter for converting an idle-pattern data generated from the PCS into a low-level optical signal for subsequent transmission to the OLT, and a switching circuit for selecting data generated from the PCS for subsequent transmission to the SERDES when there is data to be transmitted and for selecting data converted by the data converter for subsequent transmission to the SERDES when there is no data to be transmitted.

Abstract translation: 提供基于千兆以太网无源光网络（GE-PON）的点到多点通信中使用的空闲模式输出控制电路，以防止由千兆以太网控制器中的空闲模式导致的数据丢失。 在具有光线路终端（OLT）的GE-PON中，经由光分配网络（ODN）彼此连接的多个光网络单元（ONU），介质访问控制器（MAC）和 物理编码子层（PCS），其中当没有数据要发送到OLT时，PCS将空闲模式数据发送到串行器/解串器（SERDES），空闲模式输出控制电路包括数据转换器 将从PCS产生的空闲模式数据转换为低级光学信号以便随后发送到OLT;以及切换电路，用于当存在要发送的数据时选择从PCS产生的数据用于随后发送到SERDES， 当没有要发送的数据时，选择由数据转换器转换的数据以便随后发送到SERDES。 ＆lt;图像＆GT;

公开(公告)号：KR1020030085412A

公开(公告)日：2003-11-05

申请号：KR1020020023824

申请日：2002-04-30

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  김아정 ,  이민효

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/0247

Abstract: PURPOSE: A method for switching Ethernet passive optical network and a layer 2 is provided to realize subscriber-to-subscriber communication as well as ONU-to-ONU within the layer 2. CONSTITUTION: A predetermined PHY ID is granted to each service port or subscriber port(S1,...,S9) connected with each ONU(Optical Network Unit)(450,510,550). The PHY ID is tagged and filtered to a transmission frame by using PHY ID tagging/detagging layers(455,515,555). An Ethernet frame has the predetermined port connected with the ONU as a destination is transmitted through a port of an L2(Layer2) switch(440) assigned to the port in case that an OLT(Optical Line Termination)(410) receives the Ethernet frame.

Abstract translation: 目的：提供一种用于切换以太网无源光网络和第2层的方法，以在层2内实现用户到用户通信以及ONU到ONU。构成：向每个服务端口授予预定的PHY ID或 与每个ONU（光网络单元）连接的用户端口（S1，...，S9）（450,510,550）。 通过使用PHY ID标签/标签层（455,515,555）将PHY ID标记并过滤到传输帧。 在OLT（光线路终端）（410）接收到以太网帧的情况下，以太网帧具有与ONU连接的预定端口，因为通过分配给该端口的L2（第2层）交换机（440）的端口来传送目的地 。

公开(公告)号：KR1020030079311A

公开(公告)日：2003-10-10

申请号：KR1020020018267

申请日：2002-04-03

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  김아정 ,  이민효

IPC: H04L12/46

Abstract: PURPOSE: A point-to-point emulation method in a GE-PON(Gigabit Ethernet Passive Optical Network) is provided to offer an Ethernet frame structure for peer-to-peer transmission in a GE-PON system and to embody point-to-point emulation by using the Ethernet frame structure. CONSTITUTION: In a PON structure that consists of one OLT(Optical Line Termination)(30) and a plurality of ONUs(Optical Network Units)(32a-32d), the OLT(30) comprises an 802.3 PHY(PHYsical) field, an 802.3 MAC(Media Access Controller) field, a bridge(60), and a PON ONU MUX/DEMUX block(70). The bridge(60) has ports(61-64) respectively mapped to ONUs 1 through n for point-to-point emulation and a normal port(65) to process not a PON tagging Ethernet frame but an existing Ethernet frame. The PON ONU MUX/DEMUX block(70), when an Ethernet frame is transmitted from the OLT to an ONU, sets the Ethernet type as a PON Ethernet tagging frame, and sets an allocated ONU ID to an ONU ID tag. In case that an Ethernet frame is transmitted from an ONU to the OLT, the PON ONU MUX/DEMUX block(70) checks whether the Ethernet type is set as a PON Ethernet tagging frame. Each ONU(32a-32d) comprises an 802.3 PHY field, an 802.3 MAC field, a PON ONU ID filtering block(50), and an LLC(Logical Link Control)(40).

Abstract translation: 目的：提供GE-PON（千兆以太网无源光网络）中的点对点仿真方法，为GE-PON系统中的点对点传输提供以太网帧结构， 通过使用以太网帧结构进行点仿真。 构成：在由OLT（Optical Line Termination，光线路终端）（OLT）和多个ONU（Optical Network Unit）（32a-32d）组成的PON结构中，OLT（30）包括802.3 PHY（PHYsical） 802.3 MAC（媒体接入控制器）字段，桥（60）和PON ONU MUX / DEMUX块（70）。 桥（60）具有分别映射到ONU 1至n以进行点对点仿真的端口（61-64）和用于处理不是PON标记以太网帧而是现有以太网帧的正常端口（65）。 PON ONU MUX / DEMUX块（70）将以太网帧从OLT发送到ONU时，将以太网类型设置为PON以太网标记帧，并将分配的ONU ID设置为ONU ID标签。 在以太网帧从ONU发送到OLT的情况下，PON ONU MUX / DEMUX块（70）检查以太网类型是否被设置为PON以太网标记帧。 每个ONU（32a-32d）包括802.3 PHY字段，802.3 MAC字段，PON ONU ID过滤块（50）和LLC（逻辑链路控制）（40）。

公开(公告)号：KR100689483B1

公开(公告)日：2007-03-09

申请号：KR1020020023824

申请日：2002-04-30

Applicant: 삼성전자주식회사

Inventor： 송재연 ,  김아정 ,  이민효

IPC: H04L12/28

Abstract: 본 발명에 따라 L2 스위치를 포함하는 OLT(Optical Line Termination)와 상기 OLT와 연결되어 있으며, 각각 적어도 하나 이상의 서비스 포트나 가입자 포트를 포함하는 다수의 ONU(Optical Network Unit)를 포함하여 구성된 이더넷 수동형 광가입자망의 L2 스위칭 방법은, 상기 각 ONU에 연결된 하나 이상의 서비스 포트나 가입자 포트에 각각 소정 PHY ID를 부여하는 과정과; PHY ID 태깅/디태깅 레이어를 이용하여 전송 프레임에 PHY ID를 태깅/필터링하는 과정과; 상기 ONU에 연결된 소정 포트를 목적지로 하는 이더넷 프레임이 상기 OLT로 수신된 경우에 상기 포트에 할당된 L2 스위치의 포트를 통해 전송하는 과정을 포함한다.
이더넷, 수동형 광가입자망, 스위치