公开(公告)号：US12301710B2

公开(公告)日：2025-05-13

申请号：US17535860

申请日：2021-11-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sang Choi ,  Jeong Yun Kim

IPC: H04L9/08

Abstract: The present disclosure relates to a method and apparatus for key relay control based on software-defined networking in a quantum key distribution network. A method of controlling key relay in a quantum key distribution network (QKDN) according to an embodiment of the present disclosure includes: receiving, by a first control entity, a key relay route request from a key management (KM) layer; determining, by the first control entity, whether or not key relay is associated with a plurality of resource groups; and, transmitting a key relay route request from the first control entity to a second control entity, when key relay is associated with the plurality of resource groups, wherein key relay route information produced by the second control entity may be provided to the KM layer.

公开(公告)号：US11115826B2

公开(公告)日：2021-09-07

申请号：US16233887

申请日：2018-12-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Sang Choi ,  Jeong Yun Kim

IPC: H04W16/02 ,  H04W24/02 ,  H04W16/18 ,  H04W16/10

Abstract: An operation method of a first device in a communication system supporting network slicing may comprise receiving a first message requesting capacity planning of a network slice from a second device; obtaining information required for the capacity planning; transmitting a second message including the required information to a third device supporting a function of the capacity planning; receiving a third message including a result of performing the capacity planning from the third device; and performing a reallocation operation or a modification operation of the network slice based on the result of performing the capacity planning.

公开(公告)号：US10263864B2

公开(公告)日：2019-04-16

申请号：US15235531

申请日：2016-08-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sang Choi ,  Chung Lae Cho ,  Young Hwa Kim ,  Sang Sik Yoon

IPC: H04L12/26 ,  H04L29/06

Abstract: An apparatus for collecting adaptive flow statistics data includes a node type collector to access a network node and collect flows; a flow type calculator to calculate two or more flow types according to a flow duration length and request the node type collector to collect flow statistics data of a corresponding type of a flow at every collection period that corresponds to each of the two or more flow types; and a flow statistics storage to store the two or more flow types calculated by the flow type calculator, and store the flow statistics data, collected by the node type collector, for each of the two or more flow types in a table.

公开(公告)号：US09705745B2

公开(公告)日：2017-07-11

申请号：US14702906

申请日：2015-05-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sang Choi ,  Sang Sik Yoon ,  Sae Hoon Kang ,  Ji Young Kwak ,  Young Hwa Kim ,  Sae Hyong Park ,  Yong Yoon Shin ,  Ji Soo Shin ,  Sun Hee Yang ,  Byung Yun Lee ,  Byung Joon Lee

IPC: H04L12/24 ,  H04L12/26

CPC classification number: H04L41/0893 ,  H04L43/0817 ,  H04L43/16

Abstract: A system and method for virtualizing SDN-based network monitoring. The system for includes: an information collector, a monitoring component, an information converter, and a resource allocator, in which a user-defined virtual monitor is included so that integrated monitoring may be performed, and expandability may be guaranteed to dynamically respond to a user's, demands.

公开(公告)号：US12088703B2

公开(公告)日：2024-09-10

申请号：US17535864

申请日：2021-11-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Tae Sang Choi ,  Jeong Yun Kim

IPC: H04L9/08 ,  H04L67/10

CPC classification number: H04L9/0852 ,  H04L67/10

Abstract: The present disclosure relates to a method and apparatus for control action based on software-defined networking associated with quantum key distribution network (QKDN) management in a quantum key distribution network. A method for performing a control action associated with QKDN management in a QKDN according to an embodiment of the present disclosure may include: receiving, by a first control entity, control action information from a QKDN manager; determining, by the first control entity, a target of the control action based on the control action information; classifying, by the first control entity, the control action sequentially as one of a routing or rerouting-related control action, a provisioning-related control action, a protection or recovery-related control action, and a charge-related control action based on the target of the control action; and transmitting, by the first control entity, information for performing the control action for a target associated with the classified control action.