PILOT SIGNAL TRANSMITTING METHOD AND WIRELESS COMMUNICATION SYSTEM FOR ALLOWING HIGHLY PRECISE MEASUREMENT OF RECEPTION QUALITY

Title:

PILOT SIGNAL TRANSMITTING METHOD AND WIRELESS COMMUNICATION SYSTEM FOR ALLOWING HIGHLY PRECISE MEASUREMENT OF RECEPTION QUALITY

Document Type and Number:

WIPO Patent Application WO/2006/016515

Kind Code:

A1

Abstract:

A pilot signal transmitting method for reducing the block error rate and improving the throughput by enhancing the SIR measurement precision for a transmission power control during a high rate transmission. First, a first SIR value as measured by use of a first pilot signal is compared with a second SIR value as measured by use of a second pilot signal, and the presence of the second pilot signal is determined, from a result of that comparison, on a slot-by-slot basis. If the second pilot signal is present, it is used, in addition to the first pilot signal, for the SIR measurement of a high rate closed loop type of transmission power control. Otherwise, only the first pilot signal is used for the SIR measurement of the high rate closed loop type of transmission power control.

Inventors:

KURODA NAHOKO (JP)
LEE JINSOCK (JP)
HAMABE KOJIRO (JP)
USHIROKAWA AKIHISA (JP)

Application Number:

PCT/JP2005/014273

Publication Date:

February 16, 2006

Filing Date:

August 04, 2005

Export Citation:

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Assignee:

NEC CORP (JP)
KURODA NAHOKO (JP)
LEE JINSOCK (JP)
HAMABE KOJIRO (JP)
USHIROKAWA AKIHISA (JP)

International Classes:

H04B1/707; H04B7/26; H04B1/7097

Domestic Patent References:

WO2003044989A1	2003-05-30
WO2003105381A2	2003-12-18

Other References: