MIMO TRANSMITTING APPARATUS AND MIMO TRANSMITTING METHOD

Title:

MIMO TRANSMITTING APPARATUS AND MIMO TRANSMITTING METHOD

Document Type and Number:

WIPO Patent Application WO/2006/101209

Kind Code:

A1

Abstract:

A MIMO transmitting apparatus wherein a low power consumption and a high performance can be achieved by taking the influence of variation in communication distance into account. In this apparatus, a low power consumption design part (701) selectively decides, based on the distance from the other end of communication, whether to perform a pre-coding. When deciding to perform the pre-coding, the low power consumption design part (701) instructs a modulating part (702) to perform a low-order QAM modulation, while instructing a pre-coding part (703) to perform a pre-coding. When instructed to perform a low-order QAM modulation, the modulating part (702) uses a low-order QAM modulation scheme to modulate an input information bit sequence. When instructed to perform a pre-coding, the pre-coding part (703) uses a pre-coding matrix to pre-process the input information bit sequence.

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Inventors:

LI HAITAO
LI JIFENG

Application Number:

PCT/JP2006/306020

Publication Date:

September 28, 2006

Filing Date:

March 24, 2006

Export Citation:

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Assignee:

MATSUSHITA ELECTRIC IND CO LTD (JP)
LI HAITAO
LI JIFENG

International Classes:

H04J99/00; H04B7/04

Domestic Patent References:

WO2004064311A1	2004-07-29
WO2003084092A2	2003-10-09

Other References:

JIANG Y. ET AL.: "MIMO transceiver design using geometric mean decomposition", INFORMATION THEORY WORKSHOP, 2004, October 2004 (2004-10-01), pages 193 - 197, XP010776135
See also references of EP 1852993A4

Attorney, Agent or Firm:

Washida, Kimihito (Shintoshicenter Bldg. 24-1, Tsurumaki 1-chom, Tama-shi Tokyo 34, JP)

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