Interleave apparatus and interleave method

Multiplex communications – Communication over free space – Combining or distributing information via frequency channels

Reexamination Certificate

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C370S203000, C375S260000

Reexamination Certificate

active

07969957

ABSTRACT:
An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave apparatus, a data holding part (1021) two-dimensionally arranges and holds bit sequences. A first index calculating part (1022) sequentially calculates first indexes to be used for reading, in a column direction, the bit sequences arranged in a row direction. A second index calculating part (1023) sequentially calculates second indexes to be used for reversing the order of the upper-order and lower-order bits to be read from the even-numbered columns when the bit sequences are read in accordance with the first indexes. A third index calculating part (1024) sequentially calculates third indexes to be used for reading the bit sequences from a different start position in accordance with the number of retransmissions. A reading part (1025) reads the bit sequences in the order that is in accordance with the third indexes. A mapping part (103) maps the read bit sequences to the respectively corresponding subcarriers.

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PCT International Search Report dated Mar. 14, 2006.
Notice of the Reasons for Rejection dated Jul. 20, 2010.
“IEEE Wireless LAN Edition—A compilation based on IEEE Std. 802.11TM 1999 (R2003) and its amendments” IEEE, New York, Standard IEEE 802.11, Nov. 2003, pp. 1-678, p. 2, line 18.

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