公开(公告)号：KR100526551B1

公开(公告)日：2005-11-03

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: 본 발명은 이더넷 기반 수동형 광 가입자망의 하향 트래픽 제어 방법 및 그 장치에 관한 것으로서, 광가입자망장치(ONU)들 각각의 개별 토큰을 생성하여 저장하고 수동형 광 가입자망 전체의 전송률에 의거한 공통토큰을 생성하여 저장한 후 먼저 개별토큰에 의해 하향데이터를 전송할 수 있는 지를 판단하고, 개별토큰에 의해 하향데이터를 전송할 수 없는 경우 공통토큰에 의해 하향데이터를 전송할 수 있는 지를 판단하여 하향데이터를 전송하도록 함으로써, 일시적으로 하나의 광가입자망장치에 트래픽이 집중되는 경우 해당 광가입자망장치의 개별토큰에 의해 하향데이터를 전송할 수 없더라도 다른 광가입자망장치들이 사용하지 않는 공통토큰을 이용하여 해당 하향데이터를 전송할 수 있도록 한다. 따라서, 모든 ONU들에게 최소/최대전송률을 보장할 수 있다는 장점이 있으며 EPON에 있어서 버스트 트래픽에 대한 서비스 품질(QoS)을 보장할 수 있는 효과가 있다.

公开(公告)号：KR1020050021791A

公开(公告)日：2005-03-07

申请号：KR1020030059015

申请日：2003-08-26

Applicant: 삼성전자주식회사

Inventor： 이민효 ,  김영석 ,  오윤제 ,  박태성

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04L1/22 ,  H04L49/352 ,  H04L49/357 ,  H04Q11/0066 ,  H04Q2011/0081

Abstract: PURPOSE: A GE-PON(Gigabit Ethernet-Passive Optical Network) having a dual-link structure and a method for setting double links are provided to minimize a data loss according to generation of a link error by setting an error determining time with respect to an active link as a minimum 10msec. CONSTITUTION: An OLT(Optical Line Terminal)(100) sets an active link and a standby link with respect to one device corresponding to a registration request message received through an optical cable. When ONUs(Optical Network Units)(220,240,260), each of which is dually connected with the OLT(100) through the optical cable, receive an active registration message from the OLT(100) in response to the registration request message, they forms an active link with the OLT(100) through the optical cable. When the ONUs(220,240,260) receive a standby message from the OLT(100), they form a standby link with the OLT(100) through the optical cable.

Abstract translation: 目的：提供具有双链路结构的GE-PON（千兆以太网无源光网络）和双链路设置方法，以通过设置相对于 主动链接至少10毫秒。 构成：OLT（光线路终端）（100）根据通过光缆接收到的注册请求消息相对于一个设备设置活动链路和备用链路。 当通过光缆与OLT（100）双向连接的ONU（光网络单元）（220,240,260）响应于注册请求消息从OLT（100）接收到活动注册消息时，它们形成 通过光缆与OLT（100）的主动链路。 当ONU（220,240,260）从OLT（100）接收到备用消息时，它们通过光缆与OLT（100）形成备用链路。

公开(公告)号：KR1020040048770A

公开(公告)日：2004-06-10

申请号：KR1020020076741

申请日：2002-12-04

Applicant: 삼성전자주식회사

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

IPC: H04B10/27 ,  H04B10/25

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

Abstract: PURPOSE: A method for allocating bandwidths for voice services in a GE-PON(Gigabit Ethernet-Passive Optical Network) is provided to offer a voice service within a preset transmission latency time and to efficiently use an allocated bandwidth. CONSTITUTION: An OLT(Optical Line Termination) transmits a transfer opportunity grant frame to each ONU(Optical Network Unit), synchronized with the OLT(S110). Receiving the transfer opportunity grant frame, each ONU transmits a response frame to the OLT. If response frames are received(S120), the OLT judges whether the received response frames are ONU registration requests(S130). In case that it is judged that the received response frames are ONU registration requests, the OLT checks the number of the ONUs that transmitted the response frames(S150). After checking the number of the ONUs, the OLT divides a time slot into a plurality of minislots having an identical bandwidth. Then the OLT segments a part of the bandwidth of the divided minislots according to the number of the ONUs and allocates the fixed voice transmission bandwidth to each of the ONUs(S160).

Abstract translation: 目的：提供在GE-PON（千兆以太网无源光网络）中为语音服务分配带宽的方法，以在预设的传输等待时间内提供语音服务，并有效地使用分配的带宽。 构成：OLT（Optical Line Termination，光线路终端）向与OLT同步的每个ONU（Optical Network Unit）发送传送机会准许帧（S110）。 接收到传送机会准予帧，每个ONU向OLT发送响应帧。 如果接收到响应帧（S120），OLT判断接收到的响应帧是否为ONU注册请求（S130）。 在判断接收到的响应帧是ONU注册请求的情况下，OLT检查发送响应帧的ONU的数量（S150）。 在检查ONU的数量之后，OLT将时隙划分成具有相同带宽的多个微时隙。 然后，OLT根据ONU的数量对分割的微时隙的一部分带宽进行分段，并将固定的语音传输带宽分配给每个ONU（S160）。

公开(公告)号：KR100421151B1

公开(公告)日：2004-03-04

申请号：KR1020020002765

申请日：2002-01-17

Applicant: 삼성전자주식회사

Inventor： 이민효 ,  박태성 ,  원신희 ,  성환진 ,  장순호 ,  김수형 ,  최도인

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04J3/0682 ,  H04L12/2801 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0079 ,  H04Q2011/0088

Abstract: A GE-PON (Gigabit Ethernet-Passive Optical Network) system is provided that configures upstream and downstream frames on the basis of a variable-length Ethernet frame. The GE-PON system employs TDM (Time Division Multiplexing) for upstream packet transmission in a tree structure for a point-to-multipoint connection. A structure of a frame format is also provided that is capable of effectively accommodating Gigabit Ethernet traffic in the GE-PON system and a method is provided for implementing various functions such as initial ONU registration, late ONU registration, ranging, and dynamic bandwidth allocation in the GE-PON system.

Abstract translation: 提供了一种基于可变长度以太网帧配置上行和下行帧的GE-PON（千兆以太网 - 无源光网络）系统。 GE-PON系统采用TDM（时分复用）为树结构中的上行数据包传输进行点对多点连接。 还提供了一种能够在GE-PON系统中有效地适应千兆以太网业务的帧格式结构，并提供了一种用于实现初始ONU注册，后期ONU注册，测距和动态带宽分配等各种功能的方法。 GE-PON系统。 ＆lt;图像＆GT;

公开(公告)号：KR1020030062526A

公开(公告)日：2003-07-28

申请号：KR1020020002765

申请日：2002-01-17

Applicant: 삼성전자주식회사

Inventor： 이민효 ,  박태성 ,  원신희 ,  성환진 ,  장순호 ,  김수형 ,  최도인

IPC: H04L12/28

CPC classification number: H04Q11/0067 ,  H04J3/0682 ,  H04L12/2801 ,  H04Q11/0066 ,  H04Q11/0071 ,  H04Q2011/0079 ,  H04Q2011/0088

Abstract: PURPOSE: An operation implementing method in a GE-PON(Giga-bit Ethernet-Passive Optical Network) system and its Ethernet frame structure are provided to implement a frame format structure for effectively receive a giga-bit Ethernet traffic and a procedure for initial and periodical ONU(Optical Network Unit) registration, ranging and dynamic allocation of band. CONSTITUTION: An OLT(Optical Line Termination) periodically transmits synchronous signal to plural ONUs(22i,22j). The ONUs(22i,22j) are synchronized with the OLT(20). ONUs(22i,22j) waits for a grant frame coming down at first of every period. ONUs(22i,22j) check whether a value of a grant type field of the grant frame is set to an initial registration. If so, the ONUs(22i,22j) recognize ONU upstream data transmission state point and transmission time length. In order to avoid, the ONUs(22i,22j) transmit a registration request frame as an initial registration request frame to the OLT(20). The OLT(20) calculates an RTT(Round Trip Time) by using a difference between an initial registration request frame upstream transmission time estimate arrival time and an actual arrival time and a random delay value. The OLT(20) registers the ONUs(22i,22j) and assigns a new ONU ID to the ONUs(22i,22j). The OLT(20) transmits a registration response frame including the newly assigned ONU ID and the round trip type RTT to a corresponding ONU.

Abstract translation: 目的：提供GE-PON（千兆位以太网无源光网络）系统及其以太网帧结构中的操作实现方法，以实现一种帧格式结构，有效接收千兆比特以太网流量， 定期ONU（光网络单元）注册，频段的测距和动态分配。 构成：OLT（光线路终端）周期性地向多个ONU（22i，22j）发送同步信号。 ONU（22i，22j）与OLT（20）同步。 ONU（22i，22j）等待每个周期首先下降的授权帧。 ONU（22i，22j）检查授权帧的授权类型字段的值是否被设置为初始注册。 如果是，则ONU（22i，22j）识别ONU上行数据传输状态点和传输时间长度。 为了避免，ONU（22i，22j）向OLT（20）发送注册请求帧作为初始注册请求帧。 OLT（20）通过使用初始注册请求帧上行传输时间估计到达时间与实际到达时间与随机延迟值之间的差来计算RTT（往返时间）。 OLT（20）登记ONU（22i，22j），并向ONU（22i，22j）分配新的ONU ID。 OLT（20）向相应的ONU发送包括新分配的ONU ID和往返类型RTT的注册响应帧。

公开(公告)号：KR1020030038266A

公开(公告)日：2003-05-16

申请号：KR1020010069987

申请日：2001-11-10

Applicant: 삼성전자주식회사

Inventor： 최도인 ,  오윤제 ,  이민효 ,  장순호 ,  성환진 ,  박태성

IPC: H04B10/27 ,  H04B10/25

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

Abstract: PURPOSE: A gigabit Ethernet passive optical network system and a media access control method thereof are provided to replace expensive ATM(Asynchronous Transfer Mode) equipment by a gigabit Ethernet MAC(Media Access Control) controller. CONSTITUTION: An OLT(Optical Line Termination) transmits a downstream window including a control frame and Ethernet frames including position and size information of slots to a plurality of ONU(Optical Network Unit)s to an ODN(Optical Distribution Network). The OLT analyzes contents of RAU(Request Access Unit)s of an upstream window received through the ODN for permitting a time slot and slot size corresponding to each ONU. The plurality of ONUs are connected to the ODN and assigned with the time slot position and the slot size in response to the receiving of the ONUs included in the control frame of the downstream window. The plurality of ONUs transmit and receive RAU frames and Ethernet frames having queue information to and from the assigned slot.

Abstract translation: 目的：提供千兆以太网无源光网络系统及其媒体访问控制方法，以通过千兆位以太网MAC（媒体访问控制）控制器代替昂贵的ATM（异步传输模式）设备。 构成：OLT（光线路终端）将包括控制帧的下行窗口和包括时隙的位置和大小信息的以太网帧发送到多个ONU（光网络单元）到ODN（光分配网络）。 OLT分析通过ODN接收的上行窗口的RAU（请求接入单元）的内容，以允许与每个ONU对应的时隙和时隙大小。 响应于接收到包括在下游窗口的控制帧中的ONU，多个ONU连接到ODN并分配时隙位置和时隙大小。 多个ONU向分配的时隙发送和接收具有队列信息的RAU帧和以太网帧。