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US 11,894,926 B2Granted
Interleaved forward error correction over multiple transport channels
AssigneeKandou Labs, S.A.
InventorsAmin Shokrollahi, Ali Hormati
Life of this patent
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Abstract
Interleaved Forward Error Correction (FEC) encoded data from multiple FEC encoders for transport over a multi-channel physical transport medium, with cyclical rotation of the FEC encoded data bytes across transport channels in a given transmission interval as well as across time within each transport channel. A plurality of parallel FEC encoders are used to generate respective parallel FEC-encoded data streams, the outputs of which are then interleaved across a plurality of transport channels in a given transmission time interval, and, within each transport channel, the interleaved order varies over the time intervals.
Claims35
A method comprising:
- obtaining a set of information bits;
- sequentially allocating data bytes of the set of information bits to respective forward error correction (FEC) encoders of a plurality of parallel FEC encoders to generate a plurality of parallel FEC-encoded data bytes;
- providing, in a first interleaved order, a first set of FEC-encoded data bytes obtained from the plurality of parallel FEC-encoded data bytes to respective transport channels of a plurality of transport channels of an analog physical layer (PHY) circuit for parallel transmission during a plurality of signaling intervals;
- and
- providing, in a second interleaved order, a second set of FEC-encoded data bytes obtained from the plurality of parallel FEC-encoded data bytes to respective transport channels of the plurality of transport channels for parallel transmission during a subsequent plurality of signaling intervals.
2 more elements
An apparatus comprising:
- a distributor configured to obtain a set of information bits, and to sequentially allocate data bytes of the set of information bits to a plurality of distributor outputs;
- a plurality of parallel FEC-encoders, each FEC-encoder connected to a respective distributor output, the plurality of parallel FEC-encoders configured to generate a plurality of parallel FEC-encoded data bytes;
- an analog physical layer (PHY) circuit comprising a plurality of transport channels;
- and
- a plurality of multiplexing circuits configured to:
- provide, in a first interleaved order, a first set of FEC-encoded bytes obtained from the plurality of FEC-encoders to respective transport channels of the plurality of transport channels for parallel transmission during a plurality of signaling intervals;
- and
- provide, in a second interleaved order, a second set of FEC-encoded data bytes obtained from the plurality of FEC-encoders to respective transport channels of the plurality of transport channels for parallel transmission during a subsequent plurality of signaling intervals.
5 more elements
An apparatus comprising:
- a digital data buffer circuit having an input and a plurality of digital digital data buffer outputs, the digital data buffer configured to obtain a set of information bits at the input, and to sequentially allocate data bytes of the stream of information bits to the plurality of digital data buffer outputs;
- a plurality of parallel FEC-encoders, each FEC-encoder connected to a respective digital data buffer output, the plurality of parallel FEC-encoders configured to generate a plurality of parallel FEC-encoded data bytes;
- an analog physical layer (PHY) circuit comprising a plurality of transport channels;
- and
- a plurality of multiplexing circuits configured to:
- output, in a first interleaved order, a first set of FEC-encoded bytes obtained from the plurality of FEC encoders to respective transport channels of the plurality of transport channels for parallel transmission during a plurality of signaling intervals;
- and
- output, in a second interleaved order, a second set of FEC-encoded data bytes obtained from the plurality of FEC encoders to respective transport channels of the plurality of transport channels for parallel transmission during a subsequent plurality of signaling intervals.
5 more elements
Dependencies are inferred from the claim text.