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    • 12. 发明公开
    • 기가비트 이더넷 수동 광 가입자 망 시스템에서의 동작구현방법 및 그 이더넷 프레임 구조
    • GIGA-BIT以太网被动光网络系统及其以太网帧结构的操作实现方法
    • KR1020030062526A
    • 2003-07-28
    • KR1020020002765
    • 2002-01-17
    • 삼성전자주식회사
    • 이민효박태성원신희성환진장순호김수형최도인
    • H04L12/28
    • H04Q11/0067H04J3/0682H04L12/2801H04Q11/0066H04Q11/0071H04Q2011/0079H04Q2011/0088
    • 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.
    • 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。
    • 13. 发明公开
    • 기가비트 이더넷 수동 광 네트워크 시스템 및 그 매체접속 제어 방법
    • GIGABIT以太网被动光网络系统和媒体访问控制方法
    • KR1020030038266A
    • 2003-05-16
    • KR1020010069987
    • 2001-11-10
    • 삼성전자주식회사
    • 최도인오윤제이민효장순호성환진박태성
    • H04B10/27H04B10/25
    • H04Q11/0067H04Q11/0066H04Q2011/0064
    • 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.
    • 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。
    • 16. 发明公开
    • 기가비트 이더넷 - 수동 광 네트워크에서 아이들 패턴출력 제어회로
    • 用于控制GE-PON中的空闲模式输出的电路
    • KR1020030065842A
    • 2003-08-09
    • KR1020020005875
    • 2002-02-01
    • 삼성전자주식회사
    • 성환진박태성원신희이민효
    • H04L12/28
    • H04Q11/0062H04L7/06H04L2007/045H04Q11/0066H04Q11/0067H04Q2011/0094
    • PURPOSE: A circuit for controlling an idle pattern output in a GE-PON(Gigabit Ethernet-Passive Optical Network) is provided to use a commercial gigabit Ethernet controller and prevent data loss by an idle pattern. CONSTITUTION: A data converting unit(412) converts idle pattern data into data to be transmitted as an optical signal with a low level to an OLT(Optical Line Terminal). If the data to be transmitted exist, a switching unit(410) selects data outputted from a PCS(Physical Coding Sublayer)(404), and outputs the selected data to an SERDES(Serializer /Deserializer)(408). If the data to be transmitted do not exist, the switching unit(410) selects the data converted in the data converting unit(412), and outputs the selected data to the SERDES(408).
    • 目的:提供用于控制GE-PON(千兆以太网无源光网络)中的空闲模式输出的电路,以使用商用千兆以太网控制器,并防止空闲模式造成的数据丢失。 构成:数据转换单元(412)将空闲模式数据转换为要作为具有低电平的光信号发送到OLT(光线路终端)的数据。 如果要发送的数据存在,则切换单元(410)选择从PCS(物理编码子层)输出的数据(404),并将选择的数据输出到SERDES(串行器/解串器)(408)。 如果要发送的数据不存在,则切换单元(410)选择在数据转换单元(412)中转换的数据,并将所选择的数据输出到SERDES(408)。