公开(公告)号：US09954754B2

公开(公告)日：2018-04-24

申请号：US14928473

申请日：2015-10-30

Applicant: Electronics and Telecommunications Research Institute ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung-Jae Kwak ,  June-Koo Rhee ,  Junhyuk Kim ,  Kyounghye Kim

IPC: H04W4/00 ,  H04L12/26 ,  H04W74/08

CPC classification number: H04L43/10 ,  H04W74/0816

Abstract: Provided are a random access method and a terminal supporting the random access method. The terminal may monitor a state of a channel, when the state of the channel is idle, attempt a packet transmission at a first packet transmission probability, and transmit a packet including the first packet transmission probability.

公开(公告)号：US09860864B2

公开(公告)日：2018-01-02

申请号：US14656169

申请日：2015-03-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung-Jae Kwak ,  Kapseok Chang ,  June-Koo Rhee ,  Junhyuk Kim

IPC: H04W56/00 ,  H04W52/02

CPC classification number: H04W56/0055 ,  H04W52/0209 ,  Y02D70/00

Abstract: Disclosed herein are a method of performing synchronization in a distributed wireless communication system, and a terminal supporting the same. A distributed wireless communication system includes a plurality of networks. Time resources of each of a plurality of networks are divided into a synchronization slot, a discovery slot, a peering slot, and a data slot. A first terminal belonging to a first network determines whether a synchronization signal is received from a terminal belonging to a second network in the data slot of the first network. The first terminal detects whether it has met the second network that is out of synchronization with the first network if the synchronization signal is determined to have been received.

公开(公告)号：US09160563B2

公开(公告)日：2015-10-13

申请号：US14271560

申请日：2014-05-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (ETRI) ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jeong-Dong Ryoo ,  June-Koo Rhee ,  Bheom-Soon Joo ,  Jin-Sung Im ,  Zahir Uddin Ahmad ,  Yang Yang ,  Marc Holness

IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04L12/26 ,  H04L12/437 ,  H04L12/423 ,  H04L12/24 ,  H04L12/703 ,  H04L12/707

CPC classification number: H04L12/437 ,  H04L12/18 ,  H04L12/423 ,  H04L41/0659 ,  H04L41/26 ,  H04L45/22 ,  H04L45/28

Abstract: Provided is a failure recovery method in a non-revertive mode of an Ethernet ring network. In an Ethernet ring network, link priorities between nodes or node priorities are determined based on media access control (MAC) addresses and the nodes having blocked ports are determined after failures are recovered from based on the priorities so that the blocked ports can be distributed.

Abstract translation: 提供以太网环网的非回复模式的故障恢复方法。 在以太网环网中，基于媒体访问控制（MAC）地址确定节点或节点优先级之间的链路优先级，并根据优先级从故障恢复后确定具有阻塞端口的节点，从而可以分发阻塞端口。

公开(公告)号：US10039068B2

公开(公告)日：2018-07-31

申请号：US14702117

申请日：2015-05-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung-Jae Kwak ,  Kapseok Chang ,  June-Koo Rhee ,  Junhyuk Kim

IPC: H04W56/00 ,  H04L12/807 ,  H04L12/64

CPC classification number: H04W56/001 ,  H04L12/6418 ,  H04L47/27

Abstract: A method of synchronization in a distributed wireless communication system and a terminal supporting the same are disclosed. A terminal increases its contention window value if it receives a synchronization signal within a synchronization slot. The terminal decreases its contention window value if it receives no synchronization signal within the synchronization slot. The terminal determines whether to transmit a synchronization signal or not by using the increased or decreased contention window value.

公开(公告)号：US09699747B2

公开(公告)日：2017-07-04

申请号：US14852375

申请日：2015-09-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Byung-Jae Kwak ,  Kapseok Chang ,  June-Koo Rhee ,  Junhyuk Kim ,  Kyounghye Kim

IPC: H04J3/06 ,  H04W56/00 ,  H04L12/807 ,  H04W72/00

CPC classification number: H04W56/001 ,  H04L47/27 ,  H04W72/00

Abstract: Disclosed is a synchronization method in a distributed wireless communication system and a terminal supporting the same. In a synchronization method, a terminal splits a synchronization period into a plurality of backoff slots and randomly selects a backoff counter using the contention window. Furthermore, the terminal checks whether a channel is idle during at least one of the plurality of backoff slots and changes the backoff counter based on a result of the check.