SUB-RATE MAPPING FOR LOWEST-ORDER OPTICAL DATA UNIT

摘要

One embodiment relates a method for communicating data using an optical transport network. Multiple sub-rate client data signals are received from client sources. The sub-rate client data signals each have a data rate which is less than a data rate capacity of a lowest-order data unit. A predetermined number of tributary slots are provided in the lowest-order optical channel data unit, and each sub-rate client data signal are mapped to at least one of the tributary slots. Another embodiment relates to an optical data communication server that includes a sub-rate mapper for mapping multiple sub-rate client data streams to a predetermined number of tributary slots. Other embodiments and features are also disclosed.

主权项

1. A method for communicating data using an optical transport network, the method comprising:
receiving a plurality of sub-rate client data signals from client sources, wherein the plurality of sub-rate client data signals each have a data rate which is less than a data rate capacity of a lowest-order data unit; providing a predetermined number of tributary slots in the lowest-order optical channel data unit; mapping each sub-rate client data signal of the plurality of sub-rate client data streams to at least one of the tributary slots; and transmitting the lowest-order optical channel data unit onto fiber optics.