Title:
WIRELESS TERMINAL, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS BASE STATION
Document Type and Number:
WIPO Patent Application WO2010110446
Kind Code:
A1
Abstract:
A wireless terminal (1100A) comprises a communication unit (1120), a measurement unit (1140A), a measurement unit (1140B), and a control unit (1160A). The communication unit (1120) selects one of the CDMA (Code Division Multiple Access) mode and the OFDM (Orthogonal Frequency Division Multiplexing) mode as a communication mode to be used in a cell formed by a wireless base station and performs wireless communication. The measurement unit (1140A) measures the receiving quality relating to the time lag between the advance wave of a received signal and the delay wave thereof in the OFDM mode. The measurement unit (1140B) measures the receiving quality of a received signal in the CDMA mode. In the case where the OFDM mode is selected as the communication mode to be used in an idle state, when the receiving quality relating to the time lag which is obtained by the measurement unit (1140A) is deteriorated below a threshold value corresponding to a guard interval used in the OFDM mode, the control unit (1160A) causes the measurement unit (1140B) to measure the receiving quality of the received signal in the CDMA mode.
Inventors:
MIURA TAKANORI (JP)
Application Number:
PCT/JP2010/055430
Publication Date:
September 30, 2010
Filing Date:
March 26, 2010
Export Citation:
Assignee:
KYOCERA CORP (JP)
MIURA TAKANORI (JP)
MIURA TAKANORI (JP)
International Classes:
H04J11/00; H04B1/40; H04B1/707; H04W88/02
Domestic Patent References:
| WO2006051587A1 | 2006-05-18 | |||
| WO2009057782A1 | 2009-05-07 | |||
| WO2009069177A1 | 2009-06-04 | |||
| WO2007125570A1 | 2007-11-08 | |||
| WO2008008449A2 | 2008-01-17 |
Foreign References:
| JP2006319900A | 2006-11-24 | |||
| JP2003234789A | 2003-08-22 |
Other References:
MASATO FURUDATE ET AL.: "Throughput performance of Adaptive Downlink Modulation Using OFDM and MC-CDMA for Future Mobile Communications System", IEICE TECHNICAL REPORT, vol. 103, no. 682, 27 February 2004 (2004-02-27), pages 107 - 112
Attorney, Agent or Firm:
CURIUSE PATENT PROFESSIONAL CORPORATION (JP)
キュリーズ patent business corporation (JP)
キュリーズ patent business corporation (JP)
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