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公开(公告)号：KR1020120071505A
公开(公告)日：2012-07-03
申请号：KR1020100133074
申请日：2010-12-23
Applicant: 한국전자통신연구원
IPC: H04B10/297 , H04B10/293 , H04B10/291 , H04J14/02 , H04J14/08
CPC classification number: H04B10/2972 , H04B10/2918 , H04B10/2931 , H04J14/0221 , H04J14/0227 , H04J14/08
Abstract: PURPOSE: An optical repeater and optical signal amplification method are provided to reduce influence on noise generated from amplification operation for specific optical signals by controlling the amplification operation. CONSTITUTION: An UL(UpLink) optical amplification apparatus(144) amplifies an input UL optical signal from an input optical signal. When an UL stream is detected from the input UL optical signal, a control unit(147) amplifies the input UL optical signal by controlling the UL optical amplifier. When the UL stream is not detected from the input UL optical signal, a control circuit stops the amplification operation for the input UL optical signal by controlling the UL optical amplifier.
Abstract translation: 目的：提供光中继器和光信号放大方法，通过控制放大操作，减少对特定光信号的放大操作产生的噪声的影响。 构成：UL（UpLink）光放大装置（144）从输入光信号放大输入的UL光信号。 当从输入的UL光信号检测到UL流时，控制单元（147）通过控制UL光放大器来放大输入的UL光信号。 当从输入UL光信号未检测到UL流时，通过控制UL光放大器，控制电路停止输入UL光信号的放大操作。
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公开(公告)号：KR1020110049539A
公开(公告)日：2011-05-12
申请号：KR1020090106598
申请日：2009-11-05
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/27
CPC classification number: H04L47/70 , H04L47/24 , H04Q11/0067
Abstract: PURPOSE: A resource allocation method for supporting dynamic QoS based on a next generation network in a passive optical network is provided to allocate the QoS resources requested by a subscriber terminal to a passive optical network through the linkage with a dynamic next generation network integrated session control network system. CONSTITUTION: An OLT(Optical Line Terminal)(100) is connected to a GPON(Gigabit Passive Optical Network), and a subscriber terminal(120) transfers a DHCP(Dynamic Host Configuration Protocol) request message to the OLT to set up an IP address. The OLT transfers the DHCP request message to a DHCP server(300). The DHCP server processes the DHCP request, and stores the MAC(Medium Access Control) address and an IP address of the subscriber terminal.
Abstract translation: 目的：提供一种用于在无源光网络中支持基于下一代网络的动态QoS的资源分配方法，通过与动态下一代网络集成会话控制的链路将用户终端请求的QoS资源分配给无源光网络 网络系统。 构成：OLT（光线路终端）（100）连接到GPON（千兆位被动光网络），用户终端（120）向DHCP传送DHCP（动态主机配置协议）请求消息，建立IP 地址。 OLT将DHCP请求消息传送给DHCP服务器（300）。 DHCP服务器处理DHCP请求，并存储MAC（媒体访问控制）地址和用户终端的IP地址。
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公开(公告)号：KR1020110049084A
公开(公告)日：2011-05-12
申请号：KR1020090105930
申请日：2009-11-04
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: H04L12/2874 , H04L12/2885
Abstract: PURPOSE: A multicast port identifier filtering device in a gigabit passive optical subscriber network is provided to transmit effective multicast traffic in a functional range which is defined in TR-156, WT-167 of a broadband forum, and an ITU-T G.984 recommendation. CONSTITUTION: A processor(430) receives a IGMP(Internet Group Management Protocol) message from a switching unit(410). The processor grasps a traffic reception request from a subscriber terminal(320~320''). The processor records a filtering register. An ONU(Optical Network Unit) MAC(Medium Access Control) management unit(450) filters a packet transmitted to the subscriber terminal through a value of a filtering register and a port identifier for traffic transceiving with the subscriber terminal. The value of the filtering register expresses the existence of traffic which will be forwarded to the subscriber terminal.
Abstract translation: 目的：提供千兆无源光用户网络中的组播端口标识符过滤设备，以在宽带论坛的TR-156，WT-167和ITU-T G.984中定义的功能范围内传输有效的组播流量 建议。 构成：处理器（430）从交换单元（410）接收IGMP（因特网组管理协议）消息。 处理器从用户终端（320〜320“）掌握业务接收请求。 处理器记录一个过滤寄存器。 ONU（光网络单元）MAC（介质访问控制）管理单元（450）通过过滤寄存器的值和与用户终端进行业务收发的端口标识来过滤发送给用户终端的分组。 过滤寄存器的值表示将被转发到用户终端的流量的存在。
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公开(公告)号：KR1020110026367A
公开(公告)日：2011-03-15
申请号：KR1020090116653
申请日：2009-11-30
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/40
CPC classification number: H04B10/673 , H04B10/07955 , H04B10/572
Abstract: PURPOSE: An ONU(Optical Network Unit) and a method of operating the ONU are provided to control an upstream optical signal strength based on a loss signal of downstream data and transmit upstream data generated based on the controlled upstream optical signal strength, so that an OLT(Optical Line Termination) may receive the upstream data at a constant optical signal strength. CONSTITUTION: A received data processor(201) includes an electrical signal converter(203), a power amplifier(205), and a limiting amplifier(207). The electrical signal converter converts, to a current signal, an optical signal of downstream data received from an OLT via an optical splitter. The power amplifier pre-amplifies, to a voltage signal, the current signal output from the electrical signal converter. The limiting amplifier outputs received data by converting, to a digital voltage signal, the voltage signal output from the power amplifier. A transmission data processor(209) includes a measurement unit(211), a determination unit, an E/O(Electric-to-Optic) conversion controller(215), and an E/O converter(217). The measurement unit measures a downstream optical signal strength of downstream data received from the OLT. The determination unit determines an upstream optical signal strength based on the measured downstream optical signal strength. Specifically, the determination unit compares the measured downstream optical signal strength with a predetermined downstream reference strength to calculate a loss signal of the downstream data, and to determine the upstream optical signal strength based on a predetermined upstream reference strength and the loss signal.
Abstract translation: 目的：提供ONU（Optical Network Unit，光网络单元）和操作ONU的方法，以根据下行数据的丢失信号控制上行光信号强度，并发送基于受控上行光信号强度生成的上行数据， OLT（光线路终端）可以以恒定的光信号强度接收上行数据。 构成：接收数据处理器（201）包括电信号转换器（203），功率放大器（205）和限幅放大器（207）。 电信号转换器通过光分路器将从OLT接收的下行数据的光信号转换为当前信号。 功率放大器将从电信号转换器输出的电流信号预放大到电压信号。 限幅放大器通过将从功率放大器输出的电压信号转换为数字电压信号来输出接收数据。 传输数据处理器（209）包括测量单元（211），确定单元，E / O（电光转换）转换控制器（215）和E / O转换器（217）。 测量单元测量从OLT接收的下行数据的下行光信号强度。 确定单元基于所测量的下游光信号强度来确定上行光信号强度。 具体地，确定单元将所测量的下游光信号强度与预定下游参考强度进行比较，以计算下游数据的丢失信号，并且基于预定的上行参考强度和丢失信号来确定上行光信号强度。
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45.发明公开
公开(公告)号：KR1020100060746A
公开(公告)日：2010-06-07
申请号：KR1020080119476
申请日：2008-11-28
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/25 , H04B10/27
CPC classification number: H04L63/083 , H04L63/108
Abstract: PURPOSE: An ONT authentication method for preventing upward traffic transmission in passive optical network link transmitting upward traffic is provided to prevent abnormal network status by allocating ONU_ID in the ONT. CONSTITUTION: An ONT(Optical Network Terminal)(200) transmits a response PLOAM(Physical Layer Operations, Administration and Maintenance) message to an OLT according to a request of a serial number. The OLT extracts the serial number from a response PLOAM message. The OLT generates the ONU ID. The OLT transmits the ONU ID allocation PLOAM message with ONT. The ONT compares the information and the pre-stored information of the ONU ID allocation PLOAM message. If information is matched, ONT receives the allocation of the ONU ID.
Abstract translation: 目的：提供一种用于防止向上流量的无源光网络链路向上流量传输的ONT认证方法，以通过在ONT中分配ONU_ID来防止异常网络状态。 构成：根据序列号的请求，ONT（光网络终端）（200）向OLT发送响应PLOAM（物理层操作，管理和维护）消息。 OLT从响应PLOAM消息中提取序列号。 OLT生成ONU ID。 OLT通过ONT发送ONU ID分配PLOAM消息。 ONT比较ONU ID分配PLOAM消息的信息和预存信息。 如果信息匹配，ONT接收到ONU ID的分配。
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Patent Agency Ranking
公开(公告)号：KR100950337B1
公开(公告)日：2010-03-31
申请号：KR1020070121605
申请日：2007-11-27
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/27 , H04J14/08 , H04B10/25
CPC classification number: H04J3/1694 , H04J2203/0067 , H04Q11/0067 , H04Q2011/0064
Abstract: 본 발명은 TDMA 기반 수동 광가입자망을 위한 효율적인 동적 대역폭 할당 장치 및 방법에 관한 것이다. 본 발명에 따른 PON에서 OLT와 연결된 T-CONT 타입의 클래스 큐들을 포함하는 다수의 ONU들의 상향 데이터전송을 위한 동적 대역폭을 할당하는 장치에 있어서, T-CONT 타입별 대역 할당 주기 및 할당 가능한 대역 양 정보가 저장되는 클래스큐정보저장부와, 클래스큐정보저장부로부터 수신된 T-CONT 타입별 대역 할당 주기와 할당 가능한 대역 양을 체크 및 결정하는 할당 검사 테이블부와, 클래스큐정보저장부와 할당 검사 테이블부로부터 T-CONT 타입별로 정의된 정보를 참조하여 T-CONT 타입들의 대역을 상향 대역폭으로 할당하되, 할당되고 남는 상향 대역폭을 T-CONT 타입별로 재할당하여 상향 대역폭을 조정하는 대역 할당부를 포함하는 것을 특징으로 한다.
수동 광가입자망, 동적 대역폭 할당, DBA, PON-
公开(公告)号：KR1020090041163A
公开(公告)日：2009-04-28
申请号：KR1020070106735
申请日：2007-10-23
Applicant: 한국전자통신연구원
IPC: H04B10/564 , H04B10/27 , H04B10/25 , H04L12/28
CPC classification number: H04B10/272 , H04Q11/0067 , H04Q2011/0079
Abstract: A method for saving power of an ONT(Optical Network terminal) and an OLT(Optical Line Terminal) in an optical access network is provided to decrease the management cost of a network operator as well as save the power of a subscriber by operating an ONT(Optical Network terminal) and an OLT(Optical Line Terminal) in a software manner without using an additional physical device or machine. An ONT is switched to a power saving mode, and cuts off the power for all functions except a controller which monitors and controls external input(S304). It is judged whether or not a request condition for the switch into an active mode is satisfied at the power saving mode(S305). The ONT transmits a wake-up signal to an OLT(S306), and is switched to an active state. The ONT performs a normal operation.
Abstract translation: 提供了一种在光接入网络中节省ONT（光网络终端）和OLT（Optical Line Terminal，光线路终端）功率的方法，以降低网络运营商的管理成本，并通过操作ONT来节省用户的功率 （光网络终端）和OLT（光线路终端），而不使用附加的物理设备或机器。 ONT切换到省电模式，除了监视和控制外部输入的控制器之外，所有功能都切断电源（S304）。 在省电模式下判断是否满足切换为活动模式的请求条件（S305）。 ONT向OLT发送唤醒信号（S306），并且切换到活动状态。 ONT执行正常操作。
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公开(公告)号：KR101850991B1
公开(公告)日：2018-05-31
申请号：KR1020100133074
申请日：2010-12-23
Applicant: 한국전자통신연구원
IPC: H04B10/297 , H04B10/293 , H04B10/291 , H04J14/02 , H04J14/08
CPC classification number: H04B10/2972
Abstract: 본발명은시분할다중접속방식의수동형광 통신망에서의광 중계기및 그것의광신호증폭방법에관한것이다. 본발명에따른광 중계기는상향광증폭기및 이를제어하는제어회로를포함한다. 상기상향광증폭기는입력광신호중 입력상향광신호를증폭한다. 상기제어회로는상기입력상향광신호에서상향스트림의검출여부에따라상기상향광증폭기의동작여부를제어한다.
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公开(公告)号：KR1020170113886A
公开(公告)日：2017-10-13
申请号：KR1020160037180
申请日：2016-03-28
Applicant: 한국전자통신연구원
CPC classification number: H04B10/0795 , H04B10/27 , H04B10/272 , H04Q11/0067
Abstract: 수동형광 네트워크시스템에서의콰이어트윈도우설정방법및 그장치가제공된다. OLT(optical line terminal)가시리얼넘버요청(serial number request)을전송한다음에시리얼넘버요청에대한첫번째응답신호를수신하기까지의제1 응답시간을측정하고, 시리얼넘버요청에대한마지막응답신호를수신하기까지의제2 응답시간을측정한다. 그리고제1 응답시간과제2 응답시간을포함하는 ONU(optical network unit)의거리정보를획득한다.
Abstract translation: 提供了用于在无源荧光网络系统中设置静音窗口的方法和装置。 OLT（光线路终端）handaeume传送可见实数请求（序列号请求）kkajiui接收第一响应信号至该序列号请求测量第一响应时间，并且在接收端响应信号给序列号请求 测量第二个响应时间。 以及包括第一响应时间任务2响应时间的光网络单元（ONU）。
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公开(公告)号：KR1020160149916A
公开(公告)日：2016-12-28
申请号：KR1020150087748
申请日：2015-06-19
Applicant: 한국전자통신연구원
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J14/0282 , H04L7/0075
Abstract: 본발명은하이브리드수동형광네크워크(Passive Optical Network; PON) 시스템에서파장선택방법및 장치에관한것이다. 이에따른본 발명은, 하이브리드수동형광네크워크시스템에서파장선택방법으로, 복수의하향파장중 어느하나와동기화를수행하는단계, 상기동기화가성공하면, 광회선단말등록을위하여상기동기화된하향파장을선택할지여부를판단하는단계및 상기동기화된하향파장을선택할것으로판단되면, 상기동기화된하향파장을통하여상기광 회선단말에등록을수행하는단계를포함하는것을특징으로하는파장선택방법및 그장치에관한것이다.
Abstract translation: 公开了一种在混合无源光网络（PON）系统中选择波长的方法和装置。 在混合无源光网络系统中通过波长选择装置选择波长的方法包括：与多个下行波长中的任何一个进行同步; 当同步成功时，确定是否选择同步的下行波长用于注册到光线路终端; 并且当确定选择同步的下行波长时，通过同步的下行波长对光线路终端进行配准。
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