Data transmission in an SDH network
AssigneeEricsson Inc.
InventorGhani A. M. Abbas
Life of this patent
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Abstract
A method for the transmission of data in a synchronous digital hierarchy (SDH) network comprising the steps of transmitting to a node of the network a form of data signal from outside the network, converting the signal into a virtually concatenated information structure and transporting the signal through the network in the virtually concatenated information structure; means for carrying out the method and tributary cards arranged and configured to process signals received in contiguously concatenated form to convert them into virtually concatenated form for transfer across the network; thus providing for data transmitted in high-bandwidth, contiguously concatenated signals (ie VC-4-4c) to be transported across a SDH network, not itself capable of carrying contiguously concatenated signals.
Claims26
A method for transmission of data in a synchronous network, comprising the steps of:
- transmitting to a node of the network a form of data signal comprised of packet data from outside the network,
- converting the data signal into a virtually concatenated information structure comprising a plurality of virtual containers, each virtual container comprising a plurality of frames and a path overhead, by distributing the packet data from the data signal across the virtual containers, and by using a part of the path overhead of each virtual container to indicate an order of the virtual containers in the virtually concatenated information structure and a sequence of the frames in each virtual container of the virtually concatenated information structure, and
- transporting the data signal through the network in the virtually concatenated information structure.
A synchronous network for transmission of packet data in a form of a data signal from outside the network to a node of the network, comprising:
- means for converting the data signal into a virtually concatenated information structure comprising a plurality of virtual containers, each virtual container comprising a plurality of frames and a path overhead, by distributing the packet data from the data signal across the virtual containers, and by using a part of the path overhead of each virtual container to indicate an order of the virtual containers in the virtually concatenated information structure and a sequence of the frames in each virtual container of the virtually concatenated information structure, and
- means for transporting the data signal through the network in the virtually concatenated information structure.
Dependencies are inferred from the claim text.