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Title:
APPARATUS AND METHOD FOR PERFORMING CHANNEL CODING AND DECODING
Document Type and Number:
WIPO Patent Application WO/2007/108469
Kind Code:
A1
Abstract:
A coding apparatus comprises: a means for coding an information bit constituting a transmitted signal with a turbo-SPC system to derive one or more sets of redundancy bits from a set of the information bits; and a redundancy adjusting means for increasing or decreasing the redundancy bits depending on the rate of channel coding specified by a control signal to adjust the ratio of the number of information bits against the number of redundancy bits. At least a part of the redundancy bits increased or decreased by the redundancy adjusting means is the redundancy bits derived from the same set of the information bits.

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Inventors:
MIKI, Nobuhiko (Inc. SANNO PARK TOWER, 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 1006150, JP)
三木 信彦 (〒50 東京都千代田区永田町２丁目１１番１号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 1006150, JP)
OKUBO, Naoto (Inc. SANNO PARK TOWER, 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 1006150, JP)
大久保 尚人 (〒50 東京都千代田区永田町２丁目１１番１号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 1006150, JP)
KISHIYAMA, Yoshihisa (Inc. SANNO PARK TOWER, 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 1006150, JP)
Application Number:
JP2007/055664
Publication Date:
September 27, 2007
Filing Date:
March 20, 2007
Export Citation:
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Assignee:
NTT DoCoMo, Inc. (11-1, Nagatacho 2-chome Chiyoda-k, Tokyo 50, 1006150, JP)
株式会社 エヌ・ティ・ティ・ドコモ (〒50 東京都千代田区永田町２丁目１１番１号 Tokyo, 1006150, JP)
MIKI, Nobuhiko (Inc. SANNO PARK TOWER, 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 1006150, JP)
三木 信彦 (〒50 東京都千代田区永田町２丁目１１番１号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 1006150, JP)
OKUBO, Naoto (Inc. SANNO PARK TOWER, 11-1, Nagatacho 2-chome, Chiyoda-k, Tokyo 50, 1006150, JP)
大久保 尚人 (〒50 東京都千代田区永田町２丁目１１番１号 山王パークタワー 株式会社エヌ・ティ・ティ・ドコモ 知的財産部内 Tokyo, 1006150, JP)
International Classes:
H03M7/30; H03M13/29; H04B1/707
Attorney, Agent or Firm:
ITOH, Tadahiko (32nd Floor, Yebisu Garden Place Tower 20-3, Ebisu 4-Chome, Shibuya-K, Tokyo 32, 1506032, JP)
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