Title:
MULTIANTENNA RECEIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/016024
Kind Code:
A1
Abstract:
A multiantenna receiving device is provided to make it possible to cope with both improvement
in error rate characteristic and simplification in structure. The multiantenna
receiving device is comprised of soft judgement output units (520_A, 522_A,
524_B, 526_B) for carrying out a soft judgement of a modulation signal in accordance
with signal point distances between a plurality of candidate signal points with
respect to a plurality of multiplexed modulation signals and a receiving signal,
decoding units (528_A, 528_B) for obtaining digital data of the modulation signals
by using the judged results obtained by the soft judgement output units (520_A,
522_A, 524_B, 526_B), and signal point decreasing units (512_YA, 512_XA, 514_YA,
514_XA, 516_YB, 516_XB, 518_YB, 518_XB) for decreasing the number of the candidate
signal points used in the soft judgement output units (520_A, 522_A, 524_B, 526_B)
by recursively using a part of the digital data except self-modulation signals
obtained by the decoding units (528_A, 528_B).
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Inventors:
MURAKAMI YUTAKA
OKAMURA SHUTAI
KISHIGAMI TAKAAKI
OKAMURA SHUTAI
KISHIGAMI TAKAAKI
Application Number:
PCT/JP2007/064933
Publication Date:
February 07, 2008
Filing Date:
July 31, 2007
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
MURAKAMI YUTAKA
OKAMURA SHUTAI
KISHIGAMI TAKAAKI
MURAKAMI YUTAKA
OKAMURA SHUTAI
KISHIGAMI TAKAAKI
International Classes:
H04J99/00; H04B7/04
Domestic Patent References:
| WO2005050885A1 | 2005-06-02 |
Foreign References:
| JP2005184779A | 2005-07-07 | |||
| JP2003273837A | 2003-09-26 |
Other References:
MURAKAMI Y. ET AL.: "Kukan Taju MIMO System ni Okeru Junjozuke Oyobi Bubun Bit Hantei o Riyo shita Yudo Hantei Hoho no 64QAM eno Tekiyo Kento (Likelihood Detection Utilizing Ordering and Decision of Partial Bits in 64QAM channels for MIMO Spacial Multiplexing Systems)", IEICE TECHNICAL REPORT, vol. 106, no. 43, 11 May 2006 (2006-05-11), pages 73 - 78, XP003021054
MURAKAMI Y. ET AL.: "Kukan Taju MIMO System ni Okeru Junjozuke Oyobi Bubun Bit Hantei o Riyo shita Yudo Hantei Hoho no Kento (Likelihood Detection Utilizing Ordering and Decision of Partial Bits in MIMO Spatial Multiplexing Systems)", IEICE TECHNICAL REPORT, vol. 105, no. 356, 13 October 2005 (2005-10-13), pages 31 - 36, XP003006011
MURAKAMI Y. ET AL.: "Kukan Taju MIMO System ni Okeru Junjozuke Oyobi Bubun Bit Hantei o Riyo shita Yudo Hantei Hoho no Kento (Likelihood Detection Utilizing Ordering and Decision of Partial Bits in MIMO Spatial Multiplexing Systems)", IEICE TECHNICAL REPORT, vol. 105, no. 356, 13 October 2005 (2005-10-13), pages 31 - 36, XP003006011
Attorney, Agent or Firm:
WASHIDA, Kimihito (Shintoshicenter Bldg.24-1, Tsurumaki 1-chome,Tama-sh, Tokyo 34, JP)
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