System and method for transporting asynchronous ODUk signals...

Details System and method for transporting asynchronous ODUk signals... System and method for transporting asynchronous ODUk signals...

2008-09-12

2011-11-01

Nguyen, Dung (Department: 2828)

Optical communications

Multiplex

Time division

C398S140000, C398S154000, C398S182000

Reexamination Certificate

active

08050567

ABSTRACT:
System and methods are provided, in an Optical Transport Network (OTN), for communicating asynchronous Tributary Slots (TSs) via a synchronous Optical Payload Transport Unit of level k (OTUk) interface. The transmission method accepts a plurality of TSs at a corresponding plurality of asynchronous data rates. The TSs are mapped, using a tangible memory medium, into pseudo-Optical channel Data Tributary Unit (ODTU) frames synchronized to a common clock. Then, the synchronized pseudo-ODTU frames can be interleaved into an OTUk frame, without the need of a phase-locked loop (PLL) or buffering.

REFERENCES:
patent: 7742502 (2010-06-01), Vissers et al.
patent: 2008/0107418 (2008-05-01), Zhang
patent: 2011/0167314 (2011-07-01), Gerstel et al.

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