公开(公告)号：US07257117B2

公开(公告)日：2007-08-14

申请号：US10124235

申请日：2002-04-18

申请人： Kim B. Roberts ,  Ronald J. Gagnon ,  Paul A. Smeulders ,  Manoj Verghese ,  Roland A. Smith ,  Nazib A. Moledina

发明人： Kim B. Roberts ,  Ronald J. Gagnon ,  Paul A. Smeulders ,  Manoj Verghese ,  Roland A. Smith ,  Nazib A. Moledina

IPC分类号： H04L12/56

CPC分类号： H04J3/1629 ,  H04J3/1611

摘要： A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bits changed and very little jitter or wander added. In this way, the continuous format signal may be carried transparently as a tributary of a SONET network. Each frame comprises a definite number of fixed stuff bits, including transport overhead bits and reminder fixed stuff bits. A frame also comprises an adjustable number of adaptive stuff bits, resulting from the phase difference between the arbitrary rate and the common rate. A mapping function is performed in a tributary unit shelf of a SONET transport shelf, and the reverse mapping function is performed in a similar way at the far end of a SONET connection. The stuff bits are spread uniformly within the frame.

摘要翻译： 同步器/去同步器将任意速率的连续格式信号映射到预先选择的单个公共速率的帧，例如SONET帧，而不改变位，并且添加非常小的抖动或漂移。 以这种方式，连续格式信号可以作为SONET网络的支路透明地携带。 每个帧包括一定数量的固定填充位，包括传输开销位和提醒固定填充位。 帧还包括可调数量的自适应填充位，由任意速率和公共速率之间的相位差产生。 在SONET传输架的支路单元架中执行映射功能，并且以类似的方式在SONET连接的远端执行反向映射功能。 填充位在帧内均匀分布。