Fixed generic mapping of client data to optical transport frame

摘要

A fixed Generic Mapping Procedure (GMP) apparatus and method are provided to map client data to an optical transport frame. Client data to be mapped into a payload field of an optical transport frame is received and store in a memory. Timing information is generated based on bit and fractional bit granularity of client data mapped into the payload field of successive optical transport frames for use in recovering the client data from received optical transport frames.

主权项

1. An apparatus comprising:
a memory configured for first-in-first-out storage of client data received at a client data rate; a framer configured to map the client data into payload fields of successive optical transport frames according to a fixed mapping procedure in which the client data rate is rate-locked to an optical payload unit rate; and a control unit configured to generate timing information based on bit and fractional bit timing granularity of how the client data is mapped into the payload fields of successive optical transport frames, the timing information to be included in an overhead field of the successive optical transport frames for use in recovering the client data from the successive optical transport frames when received at a device.