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公开(公告)号：US11963022B2
公开(公告)日：2024-04-16
申请号：US18075506
申请日：2022-12-06
Inventor： Yoo Hwa Kang , Namseok Ko , Changki Kim , Jeong-Dong Ryoo , Yeoncheol Ryoo , Taesik Cheung
IPC: G06F15/16 , H04L41/0823 , H04W24/02
CPC classification number: H04W24/02 , H04L41/0823
Abstract: A method and apparatus for processing DetNet traffic through the steps of receiving configuration information for configuring a DetNet node from a DetNet controller of a DetNet system and configuring a UPF, a DS-TT, and/or a NW-TT in a mobile communication system as the DetNet node are provided.
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公开(公告)号：US09191272B2
公开(公告)日：2015-11-17
申请号：US14020219
申请日：2013-09-06
Inventor： Taesik Cheung , Jeong-Dong Ryoo
IPC: H04L12/24 , H04L12/931 , H04L12/707
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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公开(公告)号：US08929201B2
公开(公告)日：2015-01-06
申请号：US13625308
申请日：2012-09-24
Inventor： Jeong-dong Ryoo , Taesik Cheung
IPC: G01R31/08 , H04L29/14 , H04L12/707 , H04L12/703 , H04L12/939 , H04L1/22
CPC classification number: H04L69/40 , H04L1/22 , H04L45/22 , H04L45/28 , H04L49/557
Abstract: A protection switching unit and a method of performing protection switching of the protection switching unit are provided. The method includes steps of detecting a fault that has occurred at a working path of a network; opening a first switch that is connected to the working path and closing a second switch that is connected to the protection path of the network; and maintaining a connection state of the first switch and the working path and a connection state of the second switch and the protection path, when a fault that has occurred at the working path is restored.
Abstract translation: 提供保护切换单元和执行保护切换单元的保护切换的方法。 该方法包括检测在网络的工作路径上发生的故障的步骤; 打开连接到工作路径并关闭连接到网络的保护路径的第二交换机的第一交换机; 并且当恢复在工作路径发生的故障时，保持第一交换机和工作路径的连接状态以及第二交换机和保护路径的连接状态。
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公开(公告)号：US20240372817A1
公开(公告)日：2024-11-07
申请号：US18647816
申请日：2024-04-26
Inventor： Chang-ho CHOI , Taesik Cheung
Abstract: An apparatus and method for guaranteeing deterministic latency in a communication system is proposed. The method of operating enqueue packet processing may include extracting cycle information of a received packet from the received packet, identifying at least one of enq_myQ, enq_mateQ, and enq_mateQ_hold states of a queuing state parameter of an enqueue process for a previous packet for each flow at a reception node, identifying whether a cycle parameter for performing a CQF operation for the previous packet for each flow in the reception node is the same as a cycle parameter for performing the current CQF operation, identifying whether a cycle parameter included in the previously received packet for each flow in the reception node is the same as a cycle parameter included in a currently received packet, and storing (enqueuing) the received packet on the basis of the identifying processes and storing information about the received packet.
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公开(公告)号：US11777842B2
公开(公告)日：2023-10-03
申请号：US17517365
申请日：2021-11-02
Inventor： Yeoncheol Ryoo , Jeong-Dong Ryoo , Taesik Cheung
Abstract: In the apparatus for controlling a transmission for lossless packet forwarding, when a failure is detected on one of a plurality of forwarding paths set between a transmitting node and a receiving node, packet transmission of a flow associated with the path in which the failure occurs is stopped, when the path in which the failure occurs is recovered, packet transmission of the flow is resumed, and the receiving node temporarily extends the bandwidth of the flow.
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Patent Agency Ranking
公开(公告)号：US11646810B2
公开(公告)日：2023-05-09
申请号：US17517762
申请日：2021-11-03
Inventor： Yoo Hwa Kang , Changki Kim , Taesik Cheung
IPC: H04W56/00 , H04J3/06 , H04L41/0816
CPC classification number: H04J3/0685 , H04L41/0816 , H04W56/0015
Abstract: Provided are a method for performing port configuration of a 5G system (5GS) for providing a time synchronization service, and a network entity performing the same. A method for performing port configuration may include: when a grandmaster (GM) is determined to be a Time Sensitive Networking (TSN) GM outside the 5GS, performing, by a Network Exposure Function (NEF), port configuration of the 5GS in a Best Master Clock Algorithm (BMCA) scheme; and when the GM is determined to be a 5GS GM inside the 5GS, or the TSN GM outside the 5GS that does not support the BMCA, performing, by the NEF, port configuration of the 5GS in an external port configuration scheme.
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公开(公告)号：US11962723B2
公开(公告)日：2024-04-16
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
CPC classification number: H04M7/0081 , H04M7/066
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：US11729660B2
公开(公告)日：2023-08-15
申请号：US17398165
申请日：2021-08-10
Inventor： Changki Kim , Yoo Hwa Kang , Taesik Cheung
IPC: H04W28/02
CPC classification number: H04W28/0263 , H04W28/0205 , H04W28/0268
Abstract: A 5G system operating as a Time Sensitive Network (TSN) bridge and a traffic transmission method are provided. The traffic transmission method includes receiving, by a User Plane Function (UPF), a traffic transmission type information from a Session Management Function (SMF); determining, by the UPF, whether a Time Sensitive Communication (TSC) traffic incoming the TSN bridge is a UE-UE TSC traffic based on the traffic transmission type information; and when it is determined that the TSC traffic incoming the TSN bridge is the UE-UE TSC traffic, performing, by the UPF, local switching between Protocol Data Unit (PDU) sessions for transmitting UE-UE TSC traffic.
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公开(公告)号：US11171874B2
公开(公告)日：2021-11-09
申请号：US16570404
申请日：2019-09-13
Inventor： Yeoncheol Ryoo , Jeong-dong Ryoo , Taesik Cheung
IPC: H04L12/841 , H04L12/947 , H04L12/911 , H04L12/835 , H04L12/823
Abstract: Disclosed are methods lossless traffic forwarding using distributed delay offset matching. The lossless traffic forwarding method includes calculating a delay offset between a first forwarding path between a transmitting node and a receiving node and a second forwarding path between the transmitting node and the receiving node, and controlling a buffer resource by an extent of the delay offset to delay packets to be forwarded on the first forwarding path.
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公开(公告)号：US10237121B2
公开(公告)日：2019-03-19
申请号：US15294705
申请日：2016-10-15
Inventor： Jeong-dong Ryoo , Taesik Cheung , Kyung Gyu Chun
IPC: H04L12/46 , H04L29/08 , H04L12/701 , H04L12/725 , H04L12/24 , H04L12/703 , H04L12/721 , H04L12/26
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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