Communication apparatus and communication method
OwnerWataru Matsumotoinventor
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Abstract
A turbo encoder has a configuration provided with rearrangement unit which generates N types of random series by arranging random series generated by using prime numbers in a buffer of N (where N is a natural number) rows×M (where M is a natural number) columns and rearranging bits in rows by using the random series, generating a final rearrangement pattern by mapping interleaver-length data series on the rearranged N types of random series, and replacing rows in the mapped data series in accordance with a predetermined rule, and finally reading the generated rearrangement pattern in columns.
Claims8
A communication apparatus comprising a turbo encoder, wherein said turbo encoder includes a rearrangement unit which,
- generates N types of random series by arranging random series generated by using prime numbers in a buffer of N (where N is a natural number) rows×M (where M is a natural number) columns and rearranging bits in rows by using the random series;
- maps interleaver-length data series on the rearranged N types of random series;
- generates a final rearrangement pattern by replacing rows in the mapped data series in accordance with a predetermined rule;
- and
- reads the generated rearrangement pattern in columns.
A communication apparatus comprising a turbo encoder, wherein said turbo encoder includes a rearrangement unit which,
- generates N types of random series by arranging random series generated by using prime numbers in a buffer of N (where N is a natural number) row×M (where M is a natural number) columns and shifting the random series one column by one column in rows;
- maps interleaver-length data series on the shifted N types of random series;
- generates a final rearrangement pattern by replacing rows in the mapped data series in accordance with a predetermined rule;
- and
- reads the generated rearrangement pattern in columns.
A communication method of rearranging information bit series in a turbo encoder, the method comprising:
- a random-series generation step of generating N types of random series by arranging random series generated by using prime numbers in a buffer of N (where N is a natural number) rows×M (where M is a natural number) columns and rearranging bits in rows by using the random series;
- a mapping step of mapping interleaver-length data series on the rearranged N types of ransom series;
- a rearrangement-pattern generation step of generating a final rearrangement pattern by replacing rows in the mapped data series in accordance with a predetermined rule;
- and
- a read step of reading the generated rearrangement pattern in columns.
A communication method of rearranging information bit series in a turbo encoder, the method comprising:
- a random-series generation step of generating N types of random series by arranging random series generated by using prime numbers in a buffer of N (where N is a natural number) rows×M (where M is a natural number) columns and shifting the random series one column by one column in rows;
- a mapping step of mapping interleaver-length data series on the shifted N types of random series;
- a rearrangement-pattern generation step of generating a final rearrangement pattern by replacing rows in the mapped data series in accordance with a predetermined rule;
- and
- a read step of reading the generated rearrangement pattern in columns.
Dependencies are inferred from the claim text.