Data stream de-interleaving method, device, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXiang He, Hao Ren
Life of this patent
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Abstract
A data stream de-interleaving method is provided. The method includes: obtaining a first interleaved data stream on which forward error correction FEC encoding is performed; obtaining, based on an interleaving granularity of the first interleaved data stream, N sub-data streams corresponding to the first interleaved data stream, where N is an interleaving depth of the first interleaved data stream, and N is a positive integer greater than 1; determining a de-interleaving position based on FEC codeword boundaries of at least two of the N sub-data streams; and obtaining a first de-interleaved data stream based on the de-interleaving position and the first interleaved data stream.
Claims30
A method for determining a de-interleaving position, wherein the method comprises:
- obtaining a first interleaved data stream, wherein the first interleaved data stream is a data stream on which forward error correction (FEC) encoding is performed;
- obtaining, based on an interleaving granularity of the first interleaved data stream, N sub-data streams corresponding to the first interleaved data stream, wherein N is an interleaving depth of the first interleaved data stream, and N is a positive integer greater than 1;
- and
- determining a de-interleaving position based on FEC codeword boundaries of at least two of the N sub-data streams.
A network device, comprising a de-interleaving circuit, wherein the de-interleaving circuit is configured to:
- obtain a first interleaved data stream, wherein the first interleaved data stream is a data stream on which forward error correction (FEC) encoding is performed;
- obtain, based on an interleaving granularity of the first interleaved data stream, N sub-data streams corresponding to the first interleaved data stream, wherein N is an interleaving depth of the first interleaved data stream, and N is a positive integer greater than 1;
- and
- determine a de-interleaving position based on FEC codeword boundaries of at least two of the N sub-data streams.
Dependencies are inferred from the claim text.