Title:
BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND PILOT PATTERN DECIDING METHOD
Document Type and Number:
WIPO Patent Application WO2007086131
Kind Code:
A8
Abstract:
In a wireless communication system using a pilot signal during transmission from a user terminal to a base station, the base station creates and holds an order table about the peak-to-average power characteristics of pilot patterns; extracts a difference from the user terminal transmission power or maximum transmission power; and refers to the order table to assign, on a priority basis, a pilot pattern having a good peak-to-average power characteristic to a user terminal having a large transmission power or having a small difference from the maximum transmission power. Alternatively, the base station adaptively assigns a pilot pattern, which has an order in accordance with the user terminal transmission conditions (the transmission power, the distance from the base station and so on), to the user terminal.
Inventors:
SHIMOMURA TSUYOSHI (JP)
KIMURA DAI (JP)
KIMURA DAI (JP)
Application Number:
PCT/JP2006/301298
Publication Date:
November 29, 2007
Filing Date:
January 27, 2006
Export Citation:
Assignee:
FUJITSU LTD (JP)
SHIMOMURA TSUYOSHI (JP)
KIMURA DAI (JP)
SHIMOMURA TSUYOSHI (JP)
KIMURA DAI (JP)
International Classes:
H04B7/26; H04W52/32
Download PDF:
Previous Patent: TAG DEVICE, TRANSCEIVER DEVICE AND TAG SYSTEM
Next Patent: VARIABLE SLIT APPARATUS AND LASER TREATMENT APPARATUS
Next Patent: VARIABLE SLIT APPARATUS AND LASER TREATMENT APPARATUS