Multiplex communications – Communication techniques for information carried in plural... – Combining or distributing information via time channels
Reexamination Certificate
2005-11-15
2005-11-15
Chin, Wellington (Department: 2664)
Multiplex communications
Communication techniques for information carried in plural...
Combining or distributing information via time channels
C370S907000
Reexamination Certificate
active
06965619
ABSTRACT:
A method and apparatus are provided for flexible time-division multiplexing, and demultiplexing, of serial line data, from 1-n client lines, based on the SONET standard (e.g. OC-48 or OC-192) whereby a predetermined and reconfigurable number of STS-1s are allocated to each client. A multiplexer includes 1 to n mappers for mapping the data of 1 to n clients, according to a predetermined bandwidth allocation, to an N×STS-1 SONET payload, each mapper using y STS-1s where y is 0 to N, the y STS-1s being selected on a sequential or non-sequential concatenation basis from the N STS-1s. Each mapper maps the data of one client and each allocated STS-1 is allocated to one client and the total number of STS-1s allocated to the clients is less than or equal to N. An aggregator aggregates the mapped data into a composite STS payload comprising N STS-1s. A bandwidth allocation receiver receives the bandwidth allocation. The bandwidth allocation may be received from a source external to the multiplexer and the source may be a network controller. A demultiplexer includes a deaggregator for deaggregating the STS payload to provide the mapped data for the clients. 1 to n demappers demap the client data according to the predetermined bandwidth allocation. A bandwidth allocation receiver receives the bandwidth allocation.
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Adolph Stephen Kieran Anthony
Bisson Germain Paul
Frank Ronald Arthur
Knobel Stephen
Pelley Barry Leo
Cammarata Michael R.
Ciena Corporation
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