ORTHOGONAL FREQUENCY DIVISION MULTIPLE SIGNAL RECEPTION APPARATUS, RECEPTION APPARATUS, ORTHOGONAL FREQUENCY DIVISION MULTIPLE SIGNAL RECEPTION METHOD, AND RECEPTION METHOD

Title:

ORTHOGONAL FREQUENCY DIVISION MULTIPLE SIGNAL RECEPTION APPARATUS, RECEPTION APPARATUS, ORTHOGONAL FREQUENCY DIVISION MULTIPLE SIGNAL RECEPTION METHOD, AND RECEPTION METHOD

Document Type and Number:

WIPO Patent Application WO/2003/001713

Kind Code:

A1

Abstract:

Reception timing of a signal consisting of a valid symbol section and a guard interval section is controlled properly. According to a result of self−correlation calculation performed by a guard correlation processor (6), a timing adjustment block (7) generates a control voltage for adjusting the reception timing of the valid symbol section. A first and a second loop filter (8, 9) filter the control voltage signal generated by the timing adjustment block (7) and sends it to a switch (11). An inter−symbol interference judgment block (10) decides whether an inter−symbol interference is generated according to the result of the self−correlation calculation performed by the guard correlation processor (6), and controls the switch (11) according to the decision result. Here, in the first loop filter (8), a comparatively large gain is set while in the second loop filter (9), a comparatively small gain is set.

Inventors:

SHINODA ATSUSHI (JP)
OKUHATA YASUHIDE (JP)

Application Number:

PCT/JP2002/005892

Publication Date:

January 03, 2003

Filing Date:

June 13, 2002

Export Citation:

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Assignee:

KENWOOD CORP (JP)
SHINODA ATSUSHI (JP)
OKUHATA YASUHIDE (JP)

International Classes:

H04J11/00; H04B1/10; H04L7/00; H04L27/26; (IPC1-7): H04J11/00

Foreign References:

JP2001103033A	2001-04-13
JPH10322303A	1998-12-04
JP2001333042A	2001-11-30

Other References: