公开(公告)号：US20240333791A1

公开(公告)日：2024-10-03

申请号：US18414692

申请日：2024-01-17

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Wook Hyun ,  Changkyu Lee ,  Mi Young Huh

IPC: H04L67/104 ,  H04L45/00 ,  H04L45/02 ,  H04L45/18 ,  H04L45/24

CPC classification number: H04L67/1048 ,  H04L45/02 ,  H04L45/18 ,  H04L45/22 ,  H04L45/24

Abstract: A method of setting a path between peers included in a hybrid P2P network is disclosed. The method comprises transmitting, by a first peer, a primary path setting message for setting a primary path between the first peer and a second peer to the second peer; transmitting, by the second peer, a response message to the primary path setting message including information about a third peer, which is a parent peer of the second peer having a primary path relationship with the second peer, to the first peer; and transmitting one or more messages for setting a vertical candidate path with the third peer between the first peer and the third peer using the information about the third peer.

公开(公告)号：US11509702B2

公开(公告)日：2022-11-22

申请号：US17010876

申请日：2020-09-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Changkyu Lee ,  Wook Hyun

IPC: H04L65/613 ,  H04L65/70 ,  H04L65/75 ,  H04L65/612

Abstract: A method and an apparatus for selecting and receiving a stream in a distribution network-based multimedia streaming service are disclosed. According to the method, a receiving apparatus receives an index file for a channel from an index server and obtains a time difference between a current time of the receiving apparatus and the start time of the first streaming from the index file. Then, the receiving apparatus selects a fragment including a stream to be received among a plurality of fragments in which multimedia streams are divided and requests the selected fragment.

公开(公告)号：US10819823B2

公开(公告)日：2020-10-27

申请号：US15667792

申请日：2017-08-03

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Muhammad Bilal ,  Shin-Gak Kang ,  Wook Hyun ,  Sung-Hei Kim ,  Ju-Young Park ,  Mi-Young Huh

IPC: H04L29/08 ,  G06F12/122 ,  G06F12/126

Abstract: Disclosed herein are an in-network caching apparatus and method. The in-network caching method using the in-network caching apparatus includes receiving content from a second node in response to a request from a first node; checking a Conditional Leave Copy Everywhere (CLCE) replication condition depending on a number of requests for the content; checking a priority condition based on a result value of a priority function for the content; checking a partition depending on the number of requests for the content; performing a cache replacement operation for the content depending on a result of checking the partition for the content; and transmitting the content to the first node.

公开(公告)号：US10819781B2

公开(公告)日：2020-10-27

申请号：US16166404

申请日：2018-10-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Changkyu Lee ,  Wook Hyun ,  Mi Young Huh ,  Shin Gak Kang

IPC: H04L29/08 ,  H04N21/63 ,  H04N21/41 ,  H04N21/43

Abstract: Disclosed is a display device connection method for rapidly delivering data to a plurality of display devices. A peer-to-peer (P2P) overlay network including the plurality of display devices as member peers is configured to distribute content. In this case, an overlay management server (OMS) connects first member peers through a network as a tree topology using a source peer providing the content as a root node, and transmits fragments of the content to a child peer based on a number of peers to which each of the member peers is capable of transmitting the fragments of the content for a preset period of time, and the source peer directly transmits the fragments of the content to a second member peer that is not included in the tree topology among the member peers based on a predetermined limit on a hop count.

公开(公告)号：US10225339B2

公开(公告)日：2019-03-05

申请号：US15246787

申请日：2016-08-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Wook Hyun ,  Chang Kyu Lee ,  Sung Hei Kim ,  Ju Young Park

IPC: G06F15/16 ,  H04L29/08 ,  H04L12/24 ,  H04L12/26

Abstract: Disclosed is a method of operating a peer-to-peer (P2P) network management system, the method including generating a peer list in response to a request for the peer list from a request peer and sending a request for piece information corresponding to the peer list to a peer activity management server, the peer activity management server being configured to manage peer status information, receiving the piece information generated based on the peer status information from the peer operation server, generating a response message including the piece information and the peer list, and sending the response message to the request peer.

公开(公告)号：US20180367588A1

公开(公告)日：2018-12-20

申请号：US16010673

申请日：2018-06-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Wook Hyun ,  Changkyu Lee

IPC: H04L29/06 ,  H04L29/08

Abstract: Disclosed is a peer and an operation method of the peer, the method including receiving, from a partner peer, buffermap timetable (BTT) information associated with a buffermap of the partner peer, verifying whether a difference value between a forced delay and time information of the peer corresponds to the BTT information, requesting, when the difference value corresponds to the BTT information, a fragment of a fragment number corresponding to the difference value from the partner peer, and deriving, when the difference value does not correspond to the BTT information, the fragment number based on the BTT information.