Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2007-04-30
2009-10-13
Jung, Min (Department: 2416)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
Reexamination Certificate
active
07602814
ABSTRACT:
The present invention provides systems and methods for mapping and multiplexing wider clock tolerance signals in Optical Transport Network (OTN) transponders and multiplexers. In one exemplary embodiment, the present invention allows wide tolerance signals, such as a 10 GbE with a ±100 PPM clock tolerance, to be 100% transparently mapped asynchronously into OTU2-LAN rate transport signals. In another exemplary embodiment, the present invention allows wide tolerance signals, such as a 10 GbE with a ±100 PPM clock tolerance, to be 100% transparently multiplexed asynchronously in to OTU3-LAN rate transport signals. The present invention utilizes extra Negative Justification Opportunities (NJO) in either unused OPUk overhead or in OPUk payload area and Positive Justification Opportunities (PJO) in OPUk payload area. Advantageously, the extra NJO and PJO provide additional bandwidth for client data rate offsets beyond OTN specifications.
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Mateosky Jack
Meagher Kevin S.
Surek Steven A.
Bernard Christopher L.
Brown Tyler S.
Ciena Corporation
Clements Bernard PLLC
Jung Min
LandOfFree
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