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11.发明申请公开(公告)号：US20170331727A1
公开(公告)日：2017-11-16
申请号：US15591237
申请日：2017-05-10
Inventor： Jeong-dong RYOO , Taesik CHEUNG
IPC: H04L12/703 , H04L12/707
Abstract: A protection switching method and apparatus using operator's command in a dual-node interconnection-based protection switching. An operation method of a third end node receives an operator's command for selecting one of a working path and a protection path in a protection domain, receives information about an isolation status of a second end node and the third end node in an adjacent recovery domain connected through the second end node connected to the working path and the third end node connected to the protection path, determines whether to connect to the second end node based on information about the isolation status, delivers traffic to a path determined based on the operator's command and whether to connect to the second end node, and transfers, to the second end node, information about a connectivity decision including whether to connect to the second end node.
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公开(公告)号：US20170111213A1
公开(公告)日：2017-04-20
申请号：US15294705
申请日：2016-10-15
Inventor： Jeong-dong RYOO , Taesik CHEUNG , Kyung Gyu CHUN
IPC: H04L12/24 , H04L12/703 , H04L12/721 , H04L12/26
CPC classification number: H04L41/0659 , H04L41/0213 , H04L41/0663 , H04L43/0811 , H04L45/28 , H04L45/70
Abstract: A linear protection switching-based domain connecting method includes determining, by a protection interconnecting node, a user traffic transceiving path based on information on a presence or absence of defect in working paths and protection paths, generating working path control information and protection path control information based on information on the determined user traffic transceiving path and the information on the presence or absence of the defect in the protection paths, and transmitting the generated working path information to the working interconnecting node, and connecting two paths among the protection paths, and the connection path based on the protection path control information.
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公开(公告)号：US20140219080A1
公开(公告)日：2014-08-07
申请号：US14168079
申请日：2014-01-30
Inventor： Daeub KIM , Taesik CHEUNG , Jeong-dong RYOO
IPC: H04L12/24
Abstract: In a multi-domain network in which at least one working interconnected node and at least one protection interconnected node are formed between a first service end node and a second service end node, when a failure has occurred in both a working transport entity and a first protection transport entity of a node, a node having recognized a failure performs switching to a second protection transport entity that is connected to a corresponding interconnected node.
Abstract translation: 在其中在第一服务端节点和第二服务端节点之间形成至少一个工作互连节点和至少一个保护互连节点的多域网络中，当在工作传输实体和第一服务端节点中发生故障时， 节点的保护传输实体，识别到故障的节点对连接到相应的互连节点的第二保护传输实体进行切换。
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公开(公告)号：US20140071813A1
公开(公告)日：2014-03-13
申请号：US14020219
申请日：2013-09-06
Inventor： Taesik CHEUNG , Jeong-Dong RYOO
IPC: H04L12/24
CPC classification number: H04L41/0668 , H04L41/0663 , H04L45/22 , H04L49/65
Abstract: In a network in which a plurality of protection paths have been formed for one working path between a first node and a second node, each node determines preference levels corresponding to an order to be preferentially used when performing protection switching on the plurality of protection paths. Next, each node exchanges pieces of information about the preference levels determined for the plurality of protection paths.
Abstract translation: 在其中为第一节点和第二节点之间的一个工作路径形成多个保护路径的网络中，当对多个保护路径进行保护切换时，每个节点确定与要优先使用的顺序相对应的优先级。 接下来，每个节点交换关于为多个保护路径确定的偏好等级的信息。
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15.发明公开公开(公告)号：US20240267322A1
公开(公告)日：2024-08-08
申请号：US18423454
申请日：2024-01-26
Inventor： Taesik CHEUNG , Jeong-dong RYOO
IPC: H04L45/28 , H04L41/0663 , H04L45/00
CPC classification number: H04L45/28 , H04L41/0663 , H04L45/22
Abstract: Provided are a network device for encoding automatic protection switching (APS) information and an operating method of the same. The operating method includes monitoring a state of a working path and, when a failure is detected on the working path, encoding network failure information for activating a protection path on an APS channel and transmitting the network failure information to another network device. The APS channel is divided into a plurality of fields. The plurality of fields includes a first field corresponding to at least one of failure state information and request state information, and the first field may be a field corresponding to protection type information.
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Patent Agency Ranking
公开(公告)号：US20240235983A1
公开(公告)日：2024-07-11
申请号：US18228132
申请日：2023-07-31
Inventor： Eung Ha KIM , Yeoncheol RYOO , Bin Yeong YOON , Taesik CHEUNG
IPC: H04L45/12 , H04L45/02 , H04L47/762
CPC classification number: H04L45/123 , H04L45/02 , H04L47/762
Abstract: Provided is an apparatus and method for a centralized ultra-precision network control framework controlling heterogeneous multiple network domains to provide a large-scale end-to-end ultra-precision service in a communication system. A method of operating a network domain controller in a communication system includes: receiving node information, link information, adjacent node information, and adjacent node link information from a network node control agent; identifying controller topology information based on the node information, the link information, the adjacent node information, and the adjacent node link information; and transmitting boundary node information, boundary node link information, adjacent domain node information, and adjacent domain node link information to a network orchestrator.
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17.发明公开公开(公告)号：US20230247101A1
公开(公告)日：2023-08-03
申请号：US18159761
申请日：2023-01-26
Inventor： Jeoung Lak HA , Yoo Hwa KANG , Changki KIM , Taesik CHEUNG
IPC: H04L67/51
Abstract: The present disclosure relates generally to a wireless communication system. More particularly, the present disclosure relates to an apparatus and a method for applying a service-based interface for user traffic processing in a wireless communication system. An operation method of a user plane function (UPF) in a wireless communication system includes: transmitting information on the UPF to a network repository function (NRF) to register a service of the UPF in the NRF, wherein the information on the UPF includes a universally unique identifier (UUID), and information on the service provided by the UPF; and receiving the information on the registered service of the UPF from the NRF.
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公开(公告)号：US20220303083A1
公开(公告)日：2022-09-22
申请号：US17528521
申请日：2021-11-17
Inventor： Chang-Ho CHOI , Taesik CHEUNG , Tae Kyu KANG , Jeong-Dong RYOO , Woo Young CHOI
Abstract: When a transmitting apparatus wants to transmit a preemptable frame, the transmitting apparatus transmits a preemptable packet by a custom preamble including frame length information on a payload of the preemptable frame to the payload of the preemptable frame. A receiving apparatus determines whether a received preemptable frame is fragmented using frame length information set in the custom preamble of the received preemptable frame. As described above, since it is possible to check whether the received frame is fragmented using the frame length information set in the custom preamble, there is no need to perform CRC calculation to determine whether the received frame is fragmented as in the prior art.
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公开(公告)号：US20220239782A1
公开(公告)日：2022-07-28
申请号：US17582277
申请日：2022-01-24
Inventor： Do Young KIM , Namseok KO , Sun Me KIM , Taesik CHEUNG , Yoo Hwa KANG , Tae Kyu KANG , Jeong-Dong RYOO , Yeoncheol RYOO
Abstract: A method in which a high-quality packet telephony terminal apparatus performing low-latency and lossless packet communication with a counterpart packet telephony terminal apparatus operates in an integrated network structure in which a time sensitive network (TSN) and a packet communication network are combined may be disclosed. The packet telephony terminal apparatus may perform packet telephony call processing, perform a TSN stream reservation procedure when the counterpart packet telephony terminal apparatus is capable of performing a TSN function for lossless packet communication, adjust a size of a dejitter buffer when the TSN stream reservation procedure is successful, and perform low-latency packet telephony communication through the minimized size of the dejitter buffer.
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公开(公告)号：US20130083652A1
公开(公告)日：2013-04-04
申请号：US13630539
申请日：2012-09-28
Inventor： Taesik CHEUNG , Jeong-dong RYOO
Abstract: A method of performing protection switching in which congestion does not occur at a shared segment and that can rapidly perform linear protection switching while using an 1-phase automatic protection switching protocol is provided. An end node that requests protection switching awaits by a time that is previously set to a timer and stops use of a shared protection segment for a standby time of the end node and thus traffic that is injected to a shared node reduces, whereby a congestion situation of a shared protection segment does not occur and thus a protection switching protocol is prevented from abnormally operating.
Abstract translation: 提供一种执行保护切换的方法，其中在共享段处不发生拥塞并且可以在使用一相自动保护切换协议时快速执行线性保护切换。 请求保护切换的终端节点等待一段时间，该时间先前设置为定时器，并停止对终端节点的待机时间的共享保护段的使用，因此注入到共享节点的流量减少，从而出现拥塞情况 的共享保护段不会发生，从而防止保护交换协议异常操作。
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