Title:
RADIO COMMUNICATION DEVICE, AND RADIO COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2006/106613
Kind Code:
A1
Abstract:
A radio communication device comprises a plurality of antennas, receiving means for receiving a notification signal from a communication partner, two or more means for changing a data train number according to a MIMO multiplex method, a MIMO diversity method and an adaptive array antenna method thereby to couple the changed number to the antennas, selecting means for selecting at least one of the two or more means on the basis of the notification signal, and transmission means for notifying the communication partner of the transmission method corresponding to the selected means.
Inventors:
HIGUCHI KENICHI (JP)
MAEDA NORIYUKI (JP)
SAWAHASHI MAMORU (JP)
MAEDA NORIYUKI (JP)
SAWAHASHI MAMORU (JP)
Application Number:
PCT/JP2006/306105
Publication Date:
October 12, 2006
Filing Date:
March 27, 2006
Export Citation:
Assignee:
NTT DOCOMO INC (JP)
HIGUCHI KENICHI (JP)
MAEDA NORIYUKI (JP)
SAWAHASHI MAMORU (JP)
HIGUCHI KENICHI (JP)
MAEDA NORIYUKI (JP)
SAWAHASHI MAMORU (JP)
International Classes:
H04J99/00; H04B7/02; H04B7/04; H04B7/06; H04B7/26
Domestic Patent References:
| WO2004039011A2 | 2004-05-06 | |||
| WO2003085876A1 | 2003-10-16 | |||
| WO2005004376A1 | 2005-01-13 |
Foreign References:
| JP2004194262A | 2004-07-08 | |||
| JP2004274103A | 2004-09-30 | |||
| JP2000261398A | 2000-09-22 |
Other References:
NTT DOCOMO, NEC, SHARP: "Transmission Phase Control for Compensating High Fading Correlation in MIMO Multiplexing", 3G TSG RAN WG1 #42 R1-050856, 29 August 2000 (2000-08-29), XP003002299
NABAR R.U. ET AL.: "Transmit optimization for spatial multiplexing in the presence of spatial fading correlation", GLOBAL TELECOMMUNICATIONS CONFERENCE, 2001. GLOBECOM '01. IEEE, vol. 1, November 2001 (2001-11-01), pages 131 - 135, XP001090231
"3GPP TR 25.876 V1.7.0", 3GPP, August 2004 (2004-08-01), pages 1 - 23, AND 47 - 51, XP003002300
NTT DOCOMO, NEC, SHARP: "Investigation on Optimum Chunk Bandwidth in Evolved UTRA Downlink", 3GPP TSG RAN WG1 #42 R1-050708, 29 August 2005 (2005-08-29), XP003002801
SEOKYUN YOON ET AL.: "Orthogonal frequency division multiple access with an aggregated sub-channel structure and statistical channel quality measurement", VEHICULAR TECHNOLOGY CONFERENCE, 2004. VTC2004-FALL. 2004, IEEE 60TH, vol. 2, September 2004 (2004-09-01), pages 1023 - 1027, XP010786777
HANGJUN CHEN ET AL.: "Layered MIMO scheme with antenna grouping", COMMUNICATIONS, 2004 IEEE INTERNATIONAL CONFERENCE, vol. 1, June 2004 (2004-06-01), pages 478 - 482, XP010710392
See also references of EP 1865642A4
NABAR R.U. ET AL.: "Transmit optimization for spatial multiplexing in the presence of spatial fading correlation", GLOBAL TELECOMMUNICATIONS CONFERENCE, 2001. GLOBECOM '01. IEEE, vol. 1, November 2001 (2001-11-01), pages 131 - 135, XP001090231
"3GPP TR 25.876 V1.7.0", 3GPP, August 2004 (2004-08-01), pages 1 - 23, AND 47 - 51, XP003002300
NTT DOCOMO, NEC, SHARP: "Investigation on Optimum Chunk Bandwidth in Evolved UTRA Downlink", 3GPP TSG RAN WG1 #42 R1-050708, 29 August 2005 (2005-08-29), XP003002801
SEOKYUN YOON ET AL.: "Orthogonal frequency division multiple access with an aggregated sub-channel structure and statistical channel quality measurement", VEHICULAR TECHNOLOGY CONFERENCE, 2004. VTC2004-FALL. 2004, IEEE 60TH, vol. 2, September 2004 (2004-09-01), pages 1023 - 1027, XP010786777
HANGJUN CHEN ET AL.: "Layered MIMO scheme with antenna grouping", COMMUNICATIONS, 2004 IEEE INTERNATIONAL CONFERENCE, vol. 1, June 2004 (2004-06-01), pages 478 - 482, XP010710392
See also references of EP 1865642A4
Attorney, Agent or Firm:
Itoh, Tadahiko (Yebisu Garden Place Tower 20-3, Ebisu 4-Chome, Shibuya-K, Tokyo 32, JP)
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