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Patent Searching and Data


Title:
ERROR COMPENSATING METHOD
Document Type and Number:
WIPO Patent Application WO/2003/001715
Kind Code:
A1
Abstract:
Where a code error occurs on a transmission line in a packet (230) of sequence No. 1 transmitted from a base station (101), a mobile station (107) transmits a NACK signal corresponding to the packet of the sequence No. 1 as a control signal (236) to the base station. This base station having received the NACK signal transmits a packet (231) of sequence No. 2 and then again a packet (232) of the sequence No. 1. At this time, in addition to the packet transmitted again, a packet (233) of a sequence number (sequence No. 3) to be transmitted next is spectrum−spread by using a spreading code different from that used in the packet transmitted again, and they are code−multiplexed and simultaneously transmitted.

Inventors:
FUJIHARA NOBUO (JP)
ABE MINORU (JP)
SUZUKI KUNIYUKI (JP)
TAKANO MICHIAKI (JP)
YAMAGUCHI NOBUYASU (JP)
YAMAZAKI TAKUYA (JP)
DUAN JINSONG (JP)
Application Number:
PCT/JP2001/005369
Publication Date:
January 03, 2003
Filing Date:
June 22, 2001
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
FUJIHARA NOBUO (JP)
ABE MINORU (JP)
SUZUKI KUNIYUKI (JP)
TAKANO MICHIAKI (JP)
YAMAGUCHI NOBUYASU (JP)
YAMAZAKI TAKUYA (JP)
DUAN JINSONG (JP)
International Classes:
H04J13/00; H04L1/00; (IPC1-7): H04J13/04; H04L1/16
Foreign References:
JPH11275054A1999-10-08
Other References:
RYUUJI YAMAMOTO ET AL.: "TDMA/TDD2 slot shiyouji ni okeru ayamari saisou seigyo-hou no kentou", DENSHI JOHO TSUUSHIN GAKKAI SOUGOU TAIKAI KOUEN RONBUNSHUU B-498, 10 March 1995 (1995-03-10), pages 498, XP002945869
HIROYUKI SHIN ET AL.: "Multi carrier henchou houshiki ni okeru bubun shuuha-su ARQ-houshiki", DENSHI JOHO TSUUSHIN GAKKAI GIJUTSU KENKYUU HOKOKU RCS94-38, 23 June 1994 (1994-06-23), pages 67 - 72, XP002945870
NOBUHIKO MIKI ET AL.: "W-CDMA kudari link kousoku packet densou ni okeru hybrid ARQ no tokusei", DENSHI JOHO TSUUSHIN GAKKAI GIJUTSU KENKYU HOUKOKU RCS2000-135, 13 October 2000 (2000-10-13), pages 53 - 58, XP002945871
Attorney, Agent or Firm:
Tazawa, Hiroaki (7-1 Kasumigaseki 3-chome, Chiyoda-ku Tokyo, JP)
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