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    • 9. 发明授权
    • GMP mapping method and apparatus for optical channel data unit
    • 用于光通道数据单元的GMP映射方法和装置
    • US09503191B2
    • 2016-11-22
    • US14396958
    • 2012-04-26
    • Shangqing WuTong WangYingfei LiZhangbin Lu
    • Shangqing WuTong WangYingfei LiZhangbin Lu
    • H04J3/02H04B10/27H04J3/16H04J3/07
    • H04B10/27H04J3/02H04J3/07H04J3/1652
    • The disclosure discloses a Generic Mapping Procedure (GMP) mapping method for an Optical channel Data Unit (ODU), including: caching low-level ODUk data to a memory according to the rate of low-level ODUk data stream; generating an adjustment byte in a mapping process and encoding the adjustment byte; generating read enable of the cached data by an algorithm according to the adjustment byte, reading the cached low-level ODUk data, and generating Optical channel Data Tributary Unit (ODTU) data according to the read data; and crossing a time slot of the ODTU data in multiple channels to that of a high-level ODU payload, and forming the data in the time slot of the high-level ODU payload and the encoded adjustment byte into a completed high-level ODU frame. The disclosure may further provide a GMP mapping apparatus for an ODU. According to a technical solution of the disclosure, the GMP mapping of the ODU can be implemented according to the dynamic change of a service rate.
    • 本公开公开了一种用于光信道数据单元(ODU)的通用映射过程(GMP)映射方法,包括:根据低级ODUk数据流的速率将低级ODUk数据缓存到存储器; 在映射过程中生成调整字节并对调整字节进行编码; 通过根据调整字节的算法生成缓存数据的读取使能,读取缓存的低级ODUk数据,以及根据读取的数据生成光信道数据支路单元(ODTU)数据; 并且将多个信道中的ODTU数据的时隙与高级ODU有效载荷的时隙交叉,并将高级ODU有效载荷和编码调整字节的时隙中的数据形成为完成的高级ODU帧 。 本公开还可以提供用于ODU的GMP映射设备。 根据本公开的技术方案,ODU的GMP映射可以根据业务速率的动态变化来实现。