Title:
RADIO RECEIVING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2001/028107
Kind Code:
A1
Abstract:
If an interference elimination unit provided to each user judges that there is no demodulation error, a replica signal calculated by the interference elimination unit is subtracted from an input signal vector, and the user signal calculated is outputted as it is as a final user signal. If the interference elimination unit judges that there is a demodulation error, the user signal is calculated again by an interference elimination unit of an interference canceler at the next stage. By thus inhibiting the subtraction of the replica signal corresponding to the user signal involving a demodulation error from the input signal vector, it is possible to enhance the precision of the interference elimination.
Inventors:
OGAWA YASUTAKA (JP)
OHGANE TAKEO (JP)
NISHIMURA TOSHIHIKO (JP)
IWAMI MASASHI (JP)
KITAKADO JUN (JP)
DOI YOSHIHARU (JP)
OHGANE TAKEO (JP)
NISHIMURA TOSHIHIKO (JP)
IWAMI MASASHI (JP)
KITAKADO JUN (JP)
DOI YOSHIHARU (JP)
Application Number:
PCT/JP2000/007041
Publication Date:
April 19, 2001
Filing Date:
October 10, 2000
Export Citation:
Assignee:
JAPAN GOVERNMENT (JP)
SANYO ELECTRIC CO (JP)
OGAWA YASUTAKA (JP)
OHGANE TAKEO (JP)
NISHIMURA TOSHIHIKO (JP)
IWAMI MASASHI (JP)
KITAKADO JUN (JP)
DOI YOSHIHARU (JP)
SANYO ELECTRIC CO (JP)
OGAWA YASUTAKA (JP)
OHGANE TAKEO (JP)
NISHIMURA TOSHIHIKO (JP)
IWAMI MASASHI (JP)
KITAKADO JUN (JP)
DOI YOSHIHARU (JP)
International Classes:
H01Q3/26; H01Q25/00; H04B1/12; H04B1/7107; H04B7/08; H04J13/00; H04J99/00; H04W8/30; H04W16/28; (IPC1-7): H04B1/10; H01Q3/26; H04B7/10; H04B7/26; H04J13/00; H04J15/00
Foreign References:
| JPH11205286A | 1999-07-30 |
Other References:
TOSHIHIKO NISHIMURA ET AL.: "Kukai Ryouiki Multi-stage Kansho Canceller wo Tekiyou shita SDMAHoushiki no Tokusei Hyouka", TECHNICAL RESEARCH REPORT OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 99, no. 355, 15 October 1999 (1999-10-15), pages 103 - 108, XP002935436
MAMORU SAWAHASHI ET AL.: "DS-CDMA Chikuji Channel Suiutei Coherent Multi-stage Kansho Canceller ni okeru Kansho Jyokyo Omomi Seigyo no Kouka", TECHNICAL RESEARCH REPORT OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 97, no. 320, 16 October 1997 (1997-10-16), pages 87 - 94, XP002935437
MASAFUMI TSUTSUI ET AL.: "DS-CDMA ni okeru Array Anetenna wo mochiita Kansho Canceller to Kansho Cancell Gujutsu no Kousoku Densou User eno Bubun Tekiyou ni tsuite", TECHNICAL RESEARCH REPORT OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 98, no. 88, 29 May 1998 (1998-05-29), pages 19 - 24, XP002935438
See also references of EP 1225706A4
MAMORU SAWAHASHI ET AL.: "DS-CDMA Chikuji Channel Suiutei Coherent Multi-stage Kansho Canceller ni okeru Kansho Jyokyo Omomi Seigyo no Kouka", TECHNICAL RESEARCH REPORT OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 97, no. 320, 16 October 1997 (1997-10-16), pages 87 - 94, XP002935437
MASAFUMI TSUTSUI ET AL.: "DS-CDMA ni okeru Array Anetenna wo mochiita Kansho Canceller to Kansho Cancell Gujutsu no Kousoku Densou User eno Bubun Tekiyou ni tsuite", TECHNICAL RESEARCH REPORT OF THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 98, no. 88, 29 May 1998 (1998-05-29), pages 19 - 24, XP002935438
See also references of EP 1225706A4
Attorney, Agent or Firm:
Fukami, Hisao (Minamimori-machi 2-chome Kita-ku Osaka-shi, Osaka, JP)
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