Title:
COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/108318
Kind Code:
A1
Abstract:
The disclosed transmission device, which is provided with a plurality of transmission antennas that transmit signals over the same channel at the same moment in time to a plurality of reception devices, has: a dedicated signal generation unit that generates a dedicated reference signal destined for each of the aforementioned reception devices; a data signal generation unit that generates a data signal destined for each of the aforementioned reception devices; a spatial multiplexing unit that spatially multiplexes at least a portion of the aforementioned dedicated reference signal and at least a portion of the aforementioned data signal; and a transmission unit that transmits the spatially multiplexed signals.
Inventors:
NAKANO HIROSHI
TO SHIMPEI
ONODERA TAKASHI
HIRATA KOZUE
TOMEBA HIROMICHI
TO SHIMPEI
ONODERA TAKASHI
HIRATA KOZUE
TOMEBA HIROMICHI
Application Number:
PCT/JP2011/051853
Publication Date:
September 09, 2011
Filing Date:
January 31, 2011
Export Citation:
Assignee:
SHARP KK (JP)
NAKANO HIROSHI
TO SHIMPEI
ONODERA TAKASHI
HIRATA KOZUE
TOMEBA HIROMICHI
NAKANO HIROSHI
TO SHIMPEI
ONODERA TAKASHI
HIRATA KOZUE
TOMEBA HIROMICHI
International Classes:
H04J99/00; H04B7/04; H04J11/00
Foreign References:
| JP2009182894A | 2009-08-13 | |||
| JP2004201296A | 2004-07-15 | |||
| JP2009182894A | 2009-08-13 | |||
| JP2010043724A | 2010-02-25 |
Other References:
See also references of EP 2544392A4
H. HARASHIMA; H. MIYAKAWA: "Matched-Transmission Technique for Channels With Intersymbol Interference", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. COM-20, no. 4, August 1972 (1972-08-01), pages 774 - 780, XP000990996, DOI: doi:10.1109/TCOM.1972.1091221
J. LIU; A KRZYMIEN: "Improved Tomlinson-Harashima Precoding for the Downlink of Multiple Antenna Multi-User Systems", PROC. IEEE WIRELESS AND COMMUNICATIONS AND NETWORKING CONFERENCE, March 2005 (2005-03-01), pages 466 - 472, XP010791706, DOI: doi:10.1109/WCNC.2005.1424545
V. STANKOVIC; M. HAARDT: "Successive optimization Tomlinson-Harashima precoding (SO THP) for multi-user MIMO systems", PROC. IEEE INT. CONF. ACOUST., SPEECH, AND SIGNAL PROCESSING (ICASSP, vol. III, March 2005 (2005-03-01), pages 1117 - 1120, XP010792447, DOI: doi:10.1109/ICASSP.2005.1415910
H. HARASHIMA; H. MIYAKAWA: "Matched-Transmission Technique for Channels With Intersymbol Interference", IEEE TRANSACTIONS ON COMMUNICATIONS, vol. COM-20, no. 4, August 1972 (1972-08-01), pages 774 - 780, XP000990996, DOI: doi:10.1109/TCOM.1972.1091221
J. LIU; A KRZYMIEN: "Improved Tomlinson-Harashima Precoding for the Downlink of Multiple Antenna Multi-User Systems", PROC. IEEE WIRELESS AND COMMUNICATIONS AND NETWORKING CONFERENCE, March 2005 (2005-03-01), pages 466 - 472, XP010791706, DOI: doi:10.1109/WCNC.2005.1424545
V. STANKOVIC; M. HAARDT: "Successive optimization Tomlinson-Harashima precoding (SO THP) for multi-user MIMO systems", PROC. IEEE INT. CONF. ACOUST., SPEECH, AND SIGNAL PROCESSING (ICASSP, vol. III, March 2005 (2005-03-01), pages 1117 - 1120, XP010792447, DOI: doi:10.1109/ICASSP.2005.1415910
Attorney, Agent or Firm:
HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)
Yusuke Hiraki (JP)
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Claims: