公开(公告)号：US20240406118A1

公开(公告)日：2024-12-05

申请号：US18677506

申请日：2024-05-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ju Hyeok KWON ,  Jinoo Joung ,  Jeong Dong Ryoo ,  Tae Sik Cheung

IPC: H04L47/6295 ,  H04L47/2441

Abstract: A method and apparatus for scheduling are disclosed. An apparatus for packet scheduling includes a flow type classifier configured to classify a flow by type and to allocate at least one queue to each flow type; and a scheduler configured to calculate finish times of packets in the queue and to compare finish times of HoQ packets in the queue with each other to output an HoQ packet with an earliest finish time.

公开(公告)号：US10659374B2

公开(公告)日：2020-05-19

申请号：US16143966

申请日：2018-09-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Ho Choi ,  Tae Kyu Kang ,  Jeong Dong Ryoo ,  Tae Sik Cheung

IPC: H04J3/06 ,  H04L12/851 ,  H04W28/06 ,  H04L12/841 ,  H04W72/04 ,  H04W84/12 ,  H04W80/02

Abstract: A frame transmission controlling apparatus includes: a list configuration unit managing a parameter related to a gate control; a cycle timer unit managing a start timing of a cycle; a list executing unit performing the gate control based on the parameter, wherein the list executing unit includes: a cycle executing state machine setting an expiration time of at least one section included in the cycle, checking gate operation information corresponding to a list pointer indicating the at least one section, and performing a control corresponding to the gate operation information; a delaying state machine deducting and updating the expiration time by a predetermined unit; a cycle holding state machine generating a control signal indicating stopping transmission in MAC; and a cycle releasing state machine generating a control signal indicating resuming the transmission in MAC.

公开(公告)号：US10009272B2

公开(公告)日：2018-06-26

申请号：US15160445

申请日：2016-05-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Won Kyoung Lee ,  Jeong Dong Ryoo ,  Tae Sik Cheung

IPC: H04L12/26 ,  H04L12/741 ,  H04L12/723 ,  H04L12/713 ,  H04L12/931 ,  H04L12/24

CPC classification number: H04L45/745 ,  H04L41/0668 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/50 ,  H04L45/586 ,  H04L49/00

Abstract: Provided is a packet transmission apparatus including at least one user network interface (UNI) line card configured to receive traffic including a client signal, a fabric switch configured to perform switching on the traffic based on a unit of line card, a network-to-network interface working (NNI-W) line card configured to generate a multiprotocol label switching-transport profile (MPLS-TP) working tunnel to transmit the traffic transferred through the fabric switch, and a network-to-network interface protection (NNI-P) line card configured to generate a MPLS-TP protection tunnel to transmit the traffic transferred through the fabric switch when a fault occurs on a path of the NNI-W line card.

公开(公告)号：US09806939B2

公开(公告)日：2017-10-31

申请号：US14514822

申请日：2014-10-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae Ub Kim ,  Jeong Dong Ryoo ,  Tae Sik Cheung

IPC: H04L12/00 ,  H04L12/24 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L41/0663 ,  H04L45/22 ,  H04L45/28

Abstract: Provided is a linear protection switching method of a node, wherein the method includes selecting a local request based on a priority of at least one local request, determining a global request based on a priority between the selected local request and a remote message, and performing a state transition based on the global request.