公开(公告)号：US08989222B1

公开(公告)日：2015-03-24

申请号：US13836100

申请日：2013-03-15

申请人： PMC-Sierra US, Inc.

发明人： Winston Ki-Cheong Mok ,  Somu Karuppan Chetty ,  Jonathan Avey ,  Steven Scott Gorshe

IPC分类号： H04J3/16 ,  H04J14/02

CPC分类号： H04J14/00 ,  H04J3/07 ,  H04J3/1652 ,  H04J3/1658 ,  H04J14/0201 ,  H04J14/025

摘要： A method and apparatus are provided for generating Generic Mapping Procedure (GMP) stuff/data decisions, which avoids brute force modulo arithmetic and is efficient for hitless adjustment of ODUFIex (G.7044) in an Optical Transport Network (OTN). Addition operations are used, rather than multiplication operations, to facilitate faster and less computationally expensive calculation of data/stuff decisions, based on calculated residue values. Residue values are logically arranged in rows to facilitate residue calculation, such as based on relationships with previously calculated residue values. This method is also applicable for mapping and de-mapping Constant Bit Rate (CBR) clients into and from an ODUk carrier.

摘要翻译： 提供了一种用于生成通用映射过程（GMP）填充/数据决策的方法和装置，其避免了强力模运算，并且对于在光传输网络（OTN）中的ODUFIex（G.7044）进行无中断调整是有效的。 使用加法运算，而不是乘法运算，以便根据计算的残差值来促进更快，更少的计算量昂贵的数据/物料决策计算。 残留值在逻辑上排列排列以便于残差计算，例如基于与先前计算的残差值的关系。 该方法也适用于将常数比特率（CBR）客户端映射和解映射到ODUk运营商中。

公开(公告)号：US09344321B1

公开(公告)日：2016-05-17

申请号：US13836983

申请日：2013-03-15

申请人： PMC-SIERRA US, INC.

发明人： Steven Scott Gorshe

IPC分类号： H04J3/00 ,  H04L29/06

CPC分类号： H04L69/22 ,  H04L1/0061 ,  H04L29/0653 ,  H04L69/324

摘要： A frame delineation method for a generic framing procedure (GFP) that includes: searching a serial data stream comprising GFP frames, octet by octet, to identify an eight octet sequence; and delineating GFP frames from the serial data stream in response to determining that a first group of four octets of the identified eight octet sequence comprises a valid Core Header, and in response to determining that a second group of four octets of the identified eight octet sequence comprises one of a valid Core Header and a valid descrambled Type Header.

摘要翻译： 一种用于通用成帧过程（GFP）的帧描绘方法，包括：搜索包括GFP帧的串行数据流，以八位位组为八位字节，以识别八位八位字节序列; 以及响应于确定所识别的八个八位字节序列的四个八位字节的第一组包括有效的核心头，并且响应于确定所识别的八个八位字节序列的第四组八位字节的响应，从串行数据流中描绘GFP帧 包括有效的核心头和有效的解扰类型头之一。

公开(公告)号：US08848743B1

公开(公告)日：2014-09-30

申请号：US13689532

申请日：2012-11-29

申请人： PMC-Sierra US, Inc.

发明人： Steven Scott Gorshe

IPC分类号： H04J3/00 ,  H04L12/26 ,  H04J3/16

CPC分类号： H04L43/06 ,  H04J3/1652 ,  H04J3/1658 ,  H04J2203/006 ,  H04J2203/0075 ,  H04J2203/0082 ,  H04L1/0061 ,  H04L1/08

摘要： A method of communicating count value information in an Optical Transport Network (OTN) signal frame. The method comprises determining a count value indicating a number of payload bytes to be sent in a next OTN signal frame; determining that a change in the count value (Δ) with respect to a current count value is within a predetermined range; selecting an inversion pattern indicating the change in the count value; determining a cyclic redundancy check (CRC) code associated with the inversion pattern; and, inserting the inversion pattern and the CRC code in a Generic Mapping Procedure (GMP) overhead of the OTN signal frame.

摘要翻译： 一种在光传输网络（OTN）信号帧中传送计数值信息的方法。 该方法包括确定指示将在下一个OTN信号帧中发送的有效负载字节数的计数值; 确定相对于当前计数值的计数值（＆Dgr;）的变化在预定范围内; 选择表示计数值的变化的反转模式; 确定与所述反转模式相关联的循环冗余校验（CRC）码; 并将反转模式和CRC码插入到OTN信号帧的通用映射过程（GMP）开销中。