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11.发明授权公开(公告)号：US11233572B2
公开(公告)日：2022-01-25
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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12.发明授权公开(公告)号：US10735129B2
公开(公告)日：2020-08-04
申请号：US16208867
申请日：2018-12-04
Inventor： Kyeong Hwan Doo , Kwang Ok Kim , Hwan Seok Chung
IPC: H04B10/272 , H04J14/08 , H04J14/02 , H04Q11/00
Abstract: A bandwidth allocation apparatus and method for providing a low-latency service in an optical network that may guarantee low-latency requirements and improve a network utilization rate by allocating a static bandwidth to an ONU requiring low latency within an allocable bandwidth and by allocating a dynamic bandwidth to an ONU not requiring the low latency within a remaining bandwidth.
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Patent Agency Ranking
公开(公告)号：US10461874B2
公开(公告)日：2019-10-29
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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14.发明授权公开(公告)号：US09998808B2
公开(公告)日：2018-06-12
申请号：US15288106
申请日：2016-10-07
Inventor： Kwang Ok Kim , Hwan Seok Chung
IPC: H04Q11/00 , H04L12/721
CPC classification number: H04Q11/0067 , H04L45/26 , H04Q11/0003 , H04Q2011/0047 , H04Q2011/0064 , H04Q2011/0081 , H04Q2011/0086
Abstract: An optical line terminal (OLT) and an optical network unit (ONU) configured to generate a plurality of fragments by fragmenting a media access control (MAC) frame and to transmit the plurality of generated fragments, when a length of the MAC frame is greater than or equal to a maximum transmission unit (MTU).
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公开(公告)号：US09246628B2
公开(公告)日：2016-01-26
申请号：US13728089
申请日：2012-12-27
Inventor： Seung-Hyun Cho , Jie Hyun Lee , Seung Il Myong , Sang Soo Lee , Jong Hyun Lee , Eui Suk Jung , Kwang Ok Kim
IPC: H04J14/02
CPC classification number: H04J14/0278 , H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04J2014/0253
Abstract: Provided is a hybrid passive optical network (PON) system. The hybrid PON system of wavelength division multiplexing (WDM)/time division multiplexing (TDM) may include an optical line terminal (OLT) and an optical network unit (ONU). The OLT and the ONU may transmit a signal based on wavelength reuse using a seed light source and a reflective modulator. The light source may include a seed light source having a single wavelength, two seed light sources having different wavelength bands, and a light source having a wavelength tunable characteristic.
Abstract translation: 提供了一种混合无源光网络（PON）系统。 波分复用（WDM）/时分复用（TDM）的混合PON系统可以包括光线路终端（OLT）和光网络单元（ONU）。 OLT和ONU可以使用种子光源和反射调制器来发射基于波长重用的信号。 光源可以包括具有单个波长的种子光源，具有不同波长带的两个种子光源和具有波长可调特性的光源。
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公开(公告)号：US09219567B2
公开(公告)日：2015-12-22
申请号：US13729638
申请日：2012-12-28
Inventor： Kwang Ok Kim , Seung-Hyun Cho , Jie Hyun Lee , Seung Il Myong , Sang Soo Lee , Jong Hyun Lee
CPC classification number: H04J14/08 , H04Q11/0005 , H04Q2011/0064
Abstract: A converged passive optical network (CPON) and a data transmission method are disclosed. The CPON is a combination of a time division multiple access-passive optical network (TDMA-PON) and an orthogonal frequency division multiple access-passive optical network (OFDMA-PON) and is able to dynamically controlling a bandwidth for upstream signal transmission through allocation of multiple subcarriers to each single optical network unit (ONU).
Abstract translation: 公开了一种融合无源光网络（CPON）和数据传输方法。 CPON是时分多址无源光网络（TDMA-PON）和正交频分多址无源光网络（OFDMA-PON）的组合，能够通过分配动态地控制上行信号传输的带宽 的多个子载波到每个单个光网络单元（ONU）。
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公开(公告)号：US09130675B2
公开(公告)日：2015-09-08
申请号：US13729521
申请日：2012-12-28
Inventor： Seung Hyun Cho , Jie Hyun Lee , Kwang Ok Kim , Eui Suk Jung , Seung Il Myong , Sang Soo Lee , Jong Hyun Lee
IPC: H04B10/272 , H04B10/564 , H04B10/27 , H04B17/00
CPC classification number: H04B10/27 , H04B10/272 , H04B10/564 , H04B17/103 , H04B17/15
Abstract: A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the photo detector measuring and determining characteristics of the optical link using the reflected light, and the optical modem determining a power level and a modulation method for each subcarrier based on the characteristics of the optical link.
Abstract translation: 公开了一种光调制解调器的调制方法和执行该方法的信号传输装置。 光调制解调器的调制方法包括向光源提供信号的光接口，当基于提供的信号的来自光源的输出光被光链路反射时，光接收器接收由光链路反射的光的光检测器，照片 检测器使用反射光测量和确定光链路的特性，并且光调制解调器基于光链路的特性确定每个子载波的功率电平和调制方法。
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