公开(公告)号：US20190182173A1

公开(公告)日：2019-06-13

申请号：US16122200

申请日：2018-09-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kyeong Eun HAN ,  Dae Ub KIM ,  Chan Sung PARK ,  Jong Tae SONG ,  Kwang Joon KIM ,  Joon Ki LEE

IPC: H04L12/863 ,  H04L12/841 ,  H04L12/935

Abstract: A parallel scheduling apparatus includes an information managing unit generating a first request information for scheduling, a first scheduling unit performing first scheduling and then generating first matching information on the basis of the first request information, and a second scheduling unit performing second scheduling on the basis of the first request information and the first matching information. The parallel scheduling has an advantage of improving the scheduling performance and lowering the implementation complexity, ensuring low delay and transmission fairness among VOQs at low input traffic, being applied to all scheduling algorithms that perform existing multi-iterations, and providing efficient scheduling in a packet switch having a long RTT time or having a very short time slot or cell size, such as an optical switch.

公开(公告)号：US20170272369A1

公开(公告)日：2017-09-21

申请号：US15402313

申请日：2017-01-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Wook YOUN ,  Je Soo KO ,  Kwang Joon KIM ,  Dae Ub KIM

IPC: H04L12/851 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04L47/2441 ,  H04J14/0212 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005 ,  H04Q2011/0088

Abstract: An apparatus and method for generating a photonic frame from input packet data based on a wavelength, a space and a time and for transmitting an optical signal based on a structure of the photonic frame. The apparatus includes a classifier configured to classify input packet signals based on destination information of the packet signals, and a processor configured to generate a first frame by converting each of the classified packet signals to a photonic frame based on at least one of wavelength information and port information available for each of the packet signals.

公开(公告)号：US20170070293A1

公开(公告)日：2017-03-09

申请号：US15218240

申请日：2016-07-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sun Hyok CHANG ,  Kwang Joon KIM ,  Hyun Jae LEE ,  Chan Gyo HAN

IPC: H04B10/27 ,  H04J14/08 ,  H04B10/25

CPC classification number: H04B10/27 ,  H04B10/25 ,  H04B10/2504 ,  H04B10/2581 ,  H04B10/2587 ,  H04B10/272 ,  H04J14/04 ,  H04J14/08

Abstract: A Mode Division Multiplexed Passive Optical Network (MDM-PON) apparatus includes: a non-mode selective multiplexer which includes a first end where three or more single-mode optical fibers are spaced apart from each other by a predetermined distance, and a second end where cores of the three or more single-mode optical fibers are tapered such that a gap between the three or more single-mode optical fibers is narrower than the predetermined distance while the three or more single-mode optical fibers are spaced apart from each other by an equal distance; an optical line terminal (OLT) which is connected to the second end through a few-mode fiber, and transmits a downstream optical signal; and three or more optical network units (ONUs) which is connected to the first end through the three or more single-mode optical fibers, and transmits upstream optical signals.

Abstract translation: 模分复用无源光网络（MDM-PON）装置包括：非模选择多路复用器，其包括第一端，其中三个或更多个单模光纤彼此间隔开预定距离，第二端 其中三个或更多个单模光纤的芯是锥形的，使得三个或更多个单模光纤之间的间隙比预定距离窄，而三个或更多个单模光纤彼此间隔开 距离相等; 光线路终端（OLT），其通过多模光纤连接到第二端，并发送下行光信号; 以及通过三根以上的单模光纤连接到第一端的三个以上的光网络单元（ONU），并发送上行的光信号。