Title:
COMMUNICATION APPARATUS AND CHANNEL ESTIMATING METHOD
Document Type and Number:
WIPO Patent Application WO/2007/077608
Kind Code:
A1
Abstract:
A communication apparatus and a channel estimating method for performing channel estimations
with high precision. The communication apparatus, which receives multicarrier
signals comprising a plurality of subcarriers, has a first estimating means
that generates temporary channel estimation values from pilot signals located
in any ones of a plurality of received subcarriers; a second estimating means
that generates a virtual channel estimation value sequence related to the frequency
bands other than the frequency bands of the plurality of subcarriers and that
combines the generated virtual channel estimation value sequence with the plurality
of temporary channel estimation values to generate a channel estimation value
sequence corresponding to a predetermined frequency bandwidth; and a generating
means that uses this generated channel estimation value sequence to generate
channel estimation values related to any ones of the plurality of subcarriers.
Inventors:
DATEKI TAKASHI (JP)
Application Number:
PCT/JP2005/024110
Publication Date:
July 12, 2007
Filing Date:
December 28, 2005
Export Citation:
Assignee:
FUJITSU LTD (JP)
DATEKI TAKASHI (JP)
DATEKI TAKASHI (JP)
International Classes:
H04J11/00
Foreign References:
| JP2004266814A | 2004-09-24 | |||
| JP2004159084A | 2004-06-03 | |||
| JP2004208254A | 2004-07-22 |
Other References:
See also references of EP 1968224A4
SHIN; ABETA; SAWAHASHI: "Singaku Gihou RCS2000-186", January 2001, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, article "Case of Utilizing Repetitive Channel Estimations"
JAN-JAAP VAN DE BEEK; O.EDFORS; M.SANDELL: "On Channel Estimation in OFDM Systems", VEHICULAR TECHNOLOGY CONFERENCE, vol. 2, 25 July 1995 (1995-07-25), pages 815 - 819
SHIN; ABETA; SAWAHASHI: "Singaku Gihou RCS2000-186", January 2001, THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, article "Case of Utilizing Repetitive Channel Estimations"
JAN-JAAP VAN DE BEEK; O.EDFORS; M.SANDELL: "On Channel Estimation in OFDM Systems", VEHICULAR TECHNOLOGY CONFERENCE, vol. 2, 25 July 1995 (1995-07-25), pages 815 - 819
Attorney, Agent or Firm:
MATSUKURA, Hidemi et al. (4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, JP)
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