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公开(公告)号：US20240196119A1
公开(公告)日：2024-06-13
申请号：US18231860
申请日：2023-08-09
Inventor： Kwang Ok KIM , Kyeong Hwan DOO , Hwan Seok CHUNG
CPC classification number: H04Q11/0067 , H04L1/0076 , H04Q2011/0081 , H04Q2011/0083 , H04Q2011/0086
Abstract: A rogue ONU detection and recovery method in a PON network includes steps of: monitoring upstream signals transmitted from a plurality of ONUs to an OLT to acquire LOS signal information and FEC error information; sensing an operation of the rogue ONU in the PON network on the basis of the LOS signal information and the FEC error information; and deactivating at least one of the plurality of ONUs and recovering the rogue ONU to a normal ONU according to whether or not the operation of the rogue ONU is released.
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2.发明申请METHOD OF TUNING WAVELENGTH OF TUNABLE OPTICAL NETWORK UNIT (ONU) IN TIME AND WAVELENGTH DIVISION MULTIPLEXING-PASSIVE OPTICAL NETWORK (TWDM-PON) 审中-公开在时间和波长部分多路复用无源光网络（TWDM-PON）中调谐可调光网络单元（ONU）的波长方法公开(公告)号：US20150365192A1
公开(公告)日：2015-12-17
申请号：US14740629
申请日：2015-06-16
Inventor： Kwang Ok KIM , Kyeong Hwan DOO , Han Hyub LEE , Sang Soo LEE
IPC: H04J14/02
CPC classification number: H04J14/0256 , H04J14/0272 , H04J14/0282 , H04Q11/0067 , H04Q2011/0064
Abstract: A method of tuning a wavelength of a tunable ONU in a TWDM-PON is provided. The method includes transmitting a wavelength change request message from a source OLT to request the ONU to change a wavelength thereof from a first wavelength to a second wavelength and in response to the wavelength change request message, transmitting a wavelength change response message from the ONU to the source OLT to indicate whether or not the ONU can change a wavelength thereof. The wavelength change request message is ID information for specifying an ONU that is requested to change a wavelength thereof, and the message may comprise one of the following: system ONU ID, channel ONU ID, and individual ONU ID.
Abstract translation: 提供了一种在TWDM-PON中调谐可调谐ONU的波长的方法。 所述方法包括从源OLT发送波长变化请求消息以请求ONU将其波长从第一波长改变为第二波长，并且响应于波长改变请求消息，将来自ONU的波长变化响应消息发送到 源OLT指示ONU是否可以改变其波长。 波长变化请求消息是用于指定被请求改变其波长的ONU的ID信息，并且该消息可以包括以下之一：系统ONU ID，信道ONU ID和各个ONU ID。
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3.发明申请METHOD FOR MEASURING WAVELENGTH CHANNEL TUNING TIME OF TUNABLE DEVICE IN OPTICAL NETWORK, AND SYSTEM THEREOF 审中-公开用于测量光网络中可调谐器件的波长通道调谐时间的方法及其系统公开(公告)号：US20150125153A1
公开(公告)日：2015-05-07
申请号：US14532369
申请日：2014-11-04
Inventor： Jie Hyun LEE , Han Hyub LEE , Eun Gu LEE , Kyeong Hwan DOO
IPC: H04B10/572 , H04J14/02
CPC classification number: H04B10/0793 , H04B10/07957 , H04J14/0282
Abstract: A method for measuring a wavelength channel tuning time by using an optical filter that converts a change of an output wavelength of a tunable device into an optical intensity change, and a system thereof. The system for measuring a wavelength channel tuning time includes: an optical filter set configured to convert a wavelength change of an optical tunable device into an optical output intensity change; at least one or more optical electric converters configured to convert the optical output intensity change output by the optical filter set into an electric signal; and a controller configured to generate a wavelength change command applied to the tunable device, so as to calculate a wavelength channel tuning time of the tunable device by using the wavelength change command and the electric signal output by the optical electric converter.
Abstract translation: 一种通过使用将可调谐器件的输出波长的变化转换为光强度变化的滤光器来测量波长通道调谐时间的方法及其系统。 用于测量波长信道调谐时间的系统包括：光滤波器组，被配置为将光可调谐器件的波长变化转换成光输出强度变化; 至少一个或多个光电转换器，被配置为将由所述滤光器组输出的光输出强度变化转换为电信号; 以及控制器，被配置为产生施加到可调谐器件的波长变化指令，以便通过使用波长改变命令和由光学电转换器输出的电信号来计算可调谐器件的波长通道调谐时间。
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4.发明公开公开(公告)号：US20230164083A1
公开(公告)日：2023-05-25
申请号：US17865572
申请日：2022-07-15
Inventor： Kyeong Hwan DOO , Kwang Ok KIM , Han Hyub LEE , Hwan Seok CHUNG
CPC classification number: H04L47/2491 , H04W28/0278 , H04W72/087 , H04L47/115 , H04L47/20 , H04W28/20 , H04W28/0983
Abstract: Provided are an apparatus and a method for allocating a bandwidth for providing a low-latency fronthaul service in a passive optical network. An bandwidth allocating method performed by a bandwidth allocating apparatus included in an OLT includes receiving an actual report message requesting bandwidth allocation from at least one ONU for wired subscribers connected to the OLT, receiving radio scheduling information for at least one ONU for mobile connected to the OLT from a central unit (CU)/digital unit (DU), generating a virtual report message using the radio scheduling information received from the CU/DU, allocating a transmission bandwidth for the at least one ONU for wired subscribers and the at least one ONU for mobile through the received actual report message and the generated virtual report message, and transmitting the allocated transmission bandwidth to the ONU for wired subscribers and the ONU for mobile using a grant message.
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公开(公告)号：US20210159984A1
公开(公告)日：2021-05-27
申请号：US17103338
申请日：2020-11-24
Inventor： Han Hyub LEE , Jung-yeol OH , Kwang Ok KIM , Kyeong Hwan DOO , Hwan Seok CHUNG
IPC: H04B10/27
Abstract: Disclosed is a slice connection method of an optical access network and an optical access network system for slice connection. A slice connection method performed by an optical network unit (ONU) of an optical access network system may include determining a service type of a host device transmitting a service connection request, determining a slice based on the service type, sending a request for connection to the slice to an optical line terminal (OLT), and relaying data transmission and reception between the OLT and the host device when a slice connection response corresponding to the request is received from the OLT.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20200092622A1
公开(公告)日：2020-03-19
申请号：US16207300
申请日：2018-12-03
Inventor： Jung-yeol OH , Kyeong Hwan DOO
IPC: H04Q11/00 , H04B10/27 , H04B10/079 , G06N20/00 , G06N5/04 , H04L12/24 , H04L12/865 , H04L12/927
Abstract: A method and apparatus for allocating a bandwidth based on machine learning in a passive optical network, the method including generating an inference model to predict a consumed bandwidth required for transmission by learning unstructured data of a PON including an OLT and traffic data corresponding to state information of the PON collected from the PON, predicting a consumed bandwidth with respect to a queue corresponding to a class requiring a low-latency service among classes of ONUS connected to the OLT based on the generated inference model, performing a VBA with respect to the queue corresponding to the class requiring the low-latency service based on the predicted consumed bandwidth, and performing a DBA with respect to a queue corresponding to a class not requiring the low-latency service using a transmission bandwidth which remains after the VBA is performed.
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公开(公告)号：US20180035183A1
公开(公告)日：2018-02-01
申请号：US15398841
申请日：2017-01-05
Inventor： Kwang Ok KIM , Kyeong Hwan DOO , Hwan Seok CHUNG
CPC classification number: H04Q11/0067 , H04Q2011/0064 , H04Q2011/0088
Abstract: A method of registering an optical network unit (ONU) in an optical line terminal (OLT). The OLT determines a lane to be used by the ONU based on a transmission rate supported by the ONU, combines or distributes data of a dataflow based on a rate of the lane by comparing the rate of the lane to a rate of the dataflow of a media access control (MAC) client interface, and, when the OLT and the ONU are connected through multiple lanes, transmits and receives data between the OLT and the ONU through channel bonding for more effective use of a network.
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公开(公告)号：US20220149953A1
公开(公告)日：2022-05-12
申请号：US17520370
申请日：2021-11-05
Inventor： Jung-yeol OH , Kwang Ok KIM , Kyeong Hwan DOO , Han Hyub LEE , Hwan Seok CHUNG
IPC: H04B10/61 , H04B10/077
Abstract: Disclosed are a function split structure for a mobile convergence optical transmission network and a method of providing coordinated multi-point technology using the same. The mobile convergence optical transmission network may include a centralized unit (CU), a distributed unit (DU) connected to the CU, a transport node (TN) of an optical transmission network connected to the DU via a first interface, an aggregated unit (AU) connected to a transport unit (TU) of the optical transmission network via the first interface, and a radio unit (RU) connected to the AU via a second interface corresponding to a split structure for a lower layer than the first interface.
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9.发明申请公开(公告)号：US20190068307A1
公开(公告)日：2019-02-28
申请号：US15835717
申请日：2017-12-08
Inventor： Kwang Ok KIM , Kyeong Hwan DOO , Hwan Seok CHUNG
Abstract: An optical line terminal (OLT) accumulates and stores a user frame for each physical layer identifier (PLID) to efficiently use a plurality of lanes used for downstream transmission from the OLT to an optical network unit (ONU). The OLT envelopes payloads that are accumulatively stored for the respective PLIDs based on a transmission rate supported by a corresponding ONU, combines an envelope header based on an envelope payload unit, and transmits an envelope frame. The OLT selects an available lane from among a plurality of lanes and may transmit the envelope frame through the selected lane.
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10.发明申请OPTICAL NETWORK UNIT (ONU) FOR LOW LATENCY PACKET TRANSMISSION IN TIME DIVISION MULTIPLEXING-PASSIVE OPTICAL NETWORK (TDM-PON), METHOD OF OPERATING THE SAME, AND APPARATUS FOR CONTROLLING ONU 有权用于时分多址无源光网络（TDM-PON）的低时间分组传输的光网络单元（ONU），其操作方法以及用于控制ONU的设备公开(公告)号：US20160277142A1
公开(公告)日：2016-09-22
申请号：US15071702
申请日：2016-03-16
Inventor： Kyeong Hwan DOO , Sang Soo LEE , Jun Seong BANG
CPC classification number: H04J14/08 , H04B10/27 , H04Q11/0001
Abstract: Provided are an Optical Network Unit (ONU) for low latency packet transmission in a Time Division Multiplexing-Passive Optical Network (TDM-PON), a method of operating the ONU, and an apparatus for controlling the ONU. The method includes: receiving, from a base station, first bandwidth allocation information regarding a bandwidth allocated by the base station to a terminal for uplink packet transmission; and transmitting a bandwidth allocation request, which is based on the received first bandwidth allocation information, to an Optical Line Terminal (OLT) before completing packet reception from the base station.
Abstract translation: 提供了一种用于时分复用无源光网络（TDM-PON）中的低延迟分组传输的光网络单元（ONU），操作ONU的方法和用于控制ONU的设备。 该方法包括：从基站接收关于由基站分配给用于上行链路分组传输的终端的带宽的第一带宽分配信息; 以及在从所述基站完成分组接收之前，将基于所接收的第一带宽分配信息的带宽分配请求发送到光线路终端（OLT）。
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