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Patent Searching and Data


Title:
BASE STATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/004830
Kind Code:
A1
Abstract:
It is possible to synchronize carrier frequencies between base stations while using a clock generated by a built-in clock generator as a reference signal which decides the carrier frequency of a transmission signal.  The base station device is configured so that a radio communication is performed with a terminal device.  In the base station device, the accuracy of the OFDM signal carrier frequency is affected by the accuracy of the clock frequency generated by the built-in clock generator (18).  The base station device receives an OFDM signal transmitted from other base station while transmission to a terminal devices is halted, estimates the carrier frequency offset of the OFDM signal, and corrects the carrier frequency of the OFDM signal to be transmitted to the terminal device.

Inventors:
YAMAMOTO TAKASHI (JP)
OKADA YOJI (JP)
Application Number:
JP2009/060756
Publication Date:
January 14, 2010
Filing Date:
June 12, 2009
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
YAMAMOTO TAKASHI (JP)
OKADA YOJI (JP)
International Classes:
H04W56/00; H04J11/00; H04L7/00
Domestic Patent References:
WO2006082628A12006-08-10
Foreign References:
US20060252437A12006-11-09
JP2007208333A2007-08-16
JPS596642A1984-01-13
Attorney, Agent or Firm:
SunCrest Patent and Trademark Attorneys (JP)
Patent business corporation Sun Crest international patent firm (JP)
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