Methods and apparatus for performing data encoding or data decoding on different lanes of data streams
An encoding method includes: obtaining m lanes of first data streams through m input lanes, where m is a positive integer; processing the m lanes of first data streams to obtain z lanes of second data streams, where z is a positive integer; separately performing encoding processing on each of the z lanes of second data streams to obtain z lanes of third data streams; and performing multiplex processing on the z lanes of third data streams to obtain n lanes of fourth data streams, where n is a positive integer.
1 . A method, comprising:
obtaining m lanes of first data streams through m input lanes, wherein m is a positive integer;
processing the m lanes of first data streams to obtain z lanes of second data streams, wherein z is a positive integer;
separately performing encoding processing on each of the z lanes of second data streams, to obtain z lanes of third data streams, wherein m=4 and z=32; and
performing multiplexing processing on the z lanes of third data streams, to obtain n lanes of fourth data streams, wherein n=4.
2 . The method according to claim 1 , wherein each of the z lanes of second data streams comprises a to-be-encoded data block, and separately performing encoding processing on each of the z lanes of second data streams comprises:
for each of the z lanes of second data streams, performing encoding processing on a first data block to obtain one or more forward error correction (FEC) codewords, wherein each first data block is at least C/z consecutive to-be-encoded data blocks in the corresponding second data stream, C is a positive integer, and C is an integer multiple of z; and
wherein the method further comprises:
for each of the z lanes of second data streams, inserting a first identifier at a position of a codeword boundary of one of the FEC codewords of the corresponding lane of second data streams.
3 . The method according to claim 2 , wherein each first identifier comprises a preset identifier sequence.
4 . The method according to claim 2 , wherein a throughput or a baud rate of data obtained through insertion of the corresponding first identifier is an integer multiple of a reference clock.
5 . The method according to claim 1 , wherein processing the m lanes of first data streams to obtain the z lanes of second data streams comprises:
performing demultiplexing processing on the m lanes of first data streams based on a second ratio, to obtain the z lanes of second data streams, wherein the second ratio is a ratio of m to z.
6 . The method according to claim 5 , wherein performing the demultiplexing processing on the m lanes of first data streams based on the second ratio, to obtain the z lanes of second data streams, comprises:
performing demultiplexing processing on the m lanes of first data streams based on the second ratio, to obtain z lanes of fifth data streams; and
separately performing Q-stage processing on each of the z lanes of fifth data streams to obtain the z lanes of second data streams, wherein Q=1, and wherein each stage of processing in the Q-stage processing comprises:
performing round-robin distribution processing on each of the z lanes of fifth data streams, to obtain at least two lanes of data substreams;
performing delay processing on a first data substream to obtain a sixth data stream; and
performing multiplexing processing on a second data substream and the sixth data stream to obtain an output data stream; and
wherein the first data substream is at least one of the at least two lanes of data substreams, and the second data substream is one lane of data substream that is in the at least two lanes of data substreams and on which delay processing is not performed, and wherein the output data stream is a second data stream.
7 . The method according to claim 1 , further comprising:
identifying an alignment marker in each lane of second data stream of the z lanes of second data streams, wherein the alignment marker identifies a symbol boundary in the corresponding second data stream.
8 . The method according to claim 7 , wherein each alignment marker comprises an alignment block of 120 bits, and each alignment block comprises a 48-bit common alignment marker.
9 . The method according to claim 1 , wherein the m lanes of first data streams are obtained by performing, at a first ratio, multiplexing processing on z lanes of data streams obtained through Reed-Solomon (RS) encoding.
10 . The method according to claim 1 , wherein before performing encoding processing on each of the z lanes of second data streams, to obtain the z lanes of third data streams, the method further comprises:
performing delay processing on each of the z lanes of second data streams; and
performing multiplexing processing on a data substream on which delay processing is not performed and a data substream on which delay processing is not performed.
11 . An apparatus, comprising:
a transmitter; and
one or more processors, configured to:
obtain m lanes of first data streams through m input lanes, wherein m is a positive integer;
process the m lanes of first data streams, to obtain z lanes of second data streams, wherein z is a positive integer;
separately perform encoding processing on each of the z lanes of second data streams, to obtain z lanes of third data streams, wherein m=4 and z=32; and
perform multiplexing processing on the z lanes of third data streams, to obtain n lanes of fourth data streams, wherein n=4.
12 . The apparatus according to claim 11 , wherein each of the z lanes of second data streams comprises a to-be-encoded data block, and the one or more processors are configured to:
for each of the z lanes of second data streams, perform encoding processing on a first data block to obtain one or more forward error correction (FEC) codewords, wherein each first data block is at least C/z consecutive to-be-encoded data blocks in the corresponding second data stream, C is a positive integer, and C is an integer multiple of z; and
for each of the Z lanes of second data streams, insert a first identifier at a position of a codeword boundary of any one of the FEC codewords of the corresponding lane of second data streams.
13 . The apparatus according to claim 12 , wherein a throughput or a baud rate of data obtained through insertion of the corresponding first identifier is an integer multiple of a reference clock.
14 . The apparatus according to claim 11 , wherein the one or more processors are configured to:
perform demultiplexing processing on the m lanes of first data streams based on a second ratio, to obtain the z lanes of second data streams, wherein the second ratio is a ratio of m to z.
15 . The apparatus according to claim 14 , wherein the one or more processors are configured to:
perform demultiplexing processing on the m lanes of first data streams based on the second ratio, to obtain z lanes of fifth data streams; and
separately perform Q-stage processing on each of the z lanes of fifth data streams to obtain the z lanes of second data streams, wherein Q=1, and wherein each stage of processing in the Q-stage processing comprises:
performing round-robin distribution processing on each of the z lanes of fifth data streams, to obtain at least two lanes of data substreams;
performing delay processing on a first data substream to obtain a sixth data stream; and
performing multiplexing processing on a second data substream and the sixth data stream to obtain an output data stream; and
wherein the first data substream is at least one of the at least two lanes of data substreams, and the second data substream is one lane of data substream that is in the at least two lanes of data substreams and on which delay processing is not performed, and wherein the output data stream is a second data stream.
16 . The apparatus according to claim 11 , wherein the one or more processors are configured to:
before performing encoding processing on each of the z lanes of second data streams, to obtain z lanes of third data streams, perform delay processing on each of the z lanes of second data streams; and
perform multiplex processing on a data substream on which delay processing is not performed and a data substream on which delay processing is not performed.
17 . A method, comprising:
obtaining m lanes of first data streams through m input lanes, wherein m is a positive integer;
performing demultiplexing processing on the m lanes of first data streams based on a second ratio, to obtain z lanes of fifth data streams, wherein z is a positive integer;
separately performing Q-stage processing on each of the z lanes of fifth data streams to obtain z lanes of second data streams, wherein Q=1, and wherein each stage of processing in the Q-stage processing comprises:
performing round-robin distribution processing on each of the z lanes of fifth data streams, to obtain at least two lanes of data substreams;
performing delay processing on a first data substream to obtain a sixth data stream; and
performing multiplexing processing on a second data substream and the sixth data stream to obtain an output data stream, wherein the first data substream is at least one of the at least two lanes of data substreams, and the second data substream is one lane of data substream that is in the at least two lanes of data substreams and on which delay processing is not performed, and wherein the output data stream is a second data stream;
separately performing encoding processing on each of the z lanes of second data streams, to obtain z lanes of third data streams; and
performing multiplexing processing on the z lanes of third data streams, to obtain n lanes of fourth data streams, wherein n is a positive integer.
18 . An apparatus, comprising:
a transmitter; and
one or more processors, configured to:
obtain m lanes of first data streams through m input lanes, wherein m is a positive integer;
perform demultiplexing processing on the m lanes of first data streams based on a second ratio, to obtain z lanes of fifth data streams, wherein z is a positive integer;
separately perform Q-stage processing on each of the z lanes of fifth data streams to obtain z lanes of second data streams, wherein Q=1, and wherein each stage of processing in the Q-stage processing comprises:
performing round-robin distribution processing on each of the z lanes of fifth data streams, to obtain at least two lanes of data substreams;
performing delay processing on a first data substream to obtain a sixth data stream; and
performing multiplexing processing on a second data substream and the sixth data stream to obtain an output data stream, and wherein the first data substream is at least one of the at least two lanes of data substreams, the second data substream is one lane of data substream that is in the at least two lanes of data substreams and on which delay processing is not performed, wherein the output data stream is a second data stream;
separately perform encoding processing on each of the z lanes of second data streams, to obtain z lanes of third data streams; and
perform multiplexing processing on the z lanes of third data streams, to obtain n lanes of fourth data streams, wherein n is a positive integer.