公开(公告)号：US09136940B2

公开(公告)日：2015-09-15

申请号：US13965788

申请日：2013-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji-Wook Youn

IPC: H04J14/00 ,  H04B10/03 ,  H04B10/032 ,  H04J3/14 ,  H04J3/16 ,  H04Q11/00

CPC classification number: H04B10/032 ,  H04J3/14 ,  H04J3/1652 ,  H04Q11/0062 ,  H04Q2011/0081 ,  H04Q2011/0086

Abstract: There is provided a method for resizing a network connection in an optical transport network that supports protection switching and receives a flexible Optical channel Data (ODUflex(GFP)) signal. In addition, Hitless Adjustment of ODUflex(GFP) (HAO) procedure includes Suppress Bandwidth Resize (SBR) information that prevents a Bandwidth Resize (BWR) protocol from being initiated. Based on the SBR information, only the LCR protocol is executed at nodes located on a protection path for protection switching, except for the BWR protocol. On the other hand, both the LCR protocol and the BWR protocol are executed at nodes located on a working path.

Abstract translation: 提供了一种用于调整光传输网络中的网络连接大小的方法，该方法支持保护切换并接收灵活的光信道数据（ODUflex（GFP））信号。 此外，ODUflex（GFP）（HAO）过程的无限次调整包括阻止带宽调整大小（SBR）信息，阻止带宽调整大小（BWR）协议的启动。 基于SBR信息，除了BWR协议之外，只有LCR协议在位于用于保护倒换的保护路径上的节点处执行。 另一方面，LCR协议和BWR协议都在位于工作路径上的节点执行。

公开(公告)号：US09136903B2

公开(公告)日：2015-09-15

申请号：US13965750

申请日：2013-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji-Wook Youn

IPC: H04J14/00 ,  H04B10/03 ,  H04B1/74 ,  H04Q11/00 ,  H04J3/14 ,  H04J3/16

CPC classification number: H04B1/74 ,  H04J3/14 ,  H04J3/1664 ,  H04J2203/006 ,  H04J2203/0069 ,  H04Q11/0062 ,  H04Q2011/0081 ,  H04Q2011/0086

Abstract: There is provided a method for resizing a network connection in an optical transport network that supports protection switching and receives a flexible Optical channel Data Unit (ODUflex(GFP)) signal. In addition, at nodes located on a protection path for protection switching, only a Link Connection Resize (LCR) protocol, except for a Bandwidth Resize (BWR) protocol, of Hitless Adjustment of ODUflex(GFP) (HAO) procedure is executed. On the other hand, both the LCR protocol and the BWR protocol are executed at nodes located on a working path for protection switching.

Abstract translation: 提供了一种用于调整支持保护倒换并接收灵活的光信道数据单元（ODUflex（GFP））信号的光传输网络中的网络连接大小的方法。 另外，在位于用于保护切换的保护路径上的节点处，仅执行ODUflex（GFP）（HAO）无效调整（HAO）过程除了带宽调整大小（BWR）协议之外的链路连接调整大小（LCR）协议。 另一方面，LCR协议和BWR协议在位于用于保护倒换的工作路径上的节点处执行。

公开(公告)号：US09112603B2

公开(公告)日：2015-08-18

申请号：US13684459

申请日：2012-11-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jongyoon Shin ,  Jong-Ho Kim ,  Ji-Wook Youn

IPC: H04L12/26 ,  H04B10/077 ,  H04J3/06

CPC classification number: H04B10/0775 ,  H04B2210/072 ,  H04J3/065 ,  H04J2203/0057

Abstract: An apparatus and method for measuring a delay. The apparatus for measuring a delay includes an overhead inserting unit configured to inserting a time stamp into an overhead of a multiframe to be transmitted from a first location to a second location; an overhead extracting unit configured to extract a time stamp from an overhead of a multiframe received from the second location, the time stamp including bypass delay information of the second location; and a delay measuring unit configured to measure a round trip delay between the first location and the second location using the inserted time stamp and the extracted time stamp and adjust the measured round trip delay using the extracted bypass delay information.

Abstract translation: 一种用于测量延迟的装置和方法。 用于测量延迟的装置包括：开销插入单元，被配置为将时间戳插入要从第一位置发送到第二位置的多帧的开销; 开销提取单元，被配置为从所述第二位置接收到的多帧的开销提取时间戳，所述时间戳包括所述第二位置的旁路延迟信息; 以及延迟测量单元，其被配置为使用所插入的时间戳和所提取的时间戳来测量所述第一位置和所述第二位置之间的往返延迟，并且使用所提取的旁路延迟信息来调整所测量的往返延迟。