Title:
実現が簡単なRSSI測定装置及びその方法と、その方法を実現するプログラムが貯蔵された記録媒体
Document Type and Number:
Japanese Patent JP4567697
Kind Code:
B2
Abstract:
An apparatus for estimating a RSSI of a signal transmitted/received in a wireless network, the apparatus including an ADC quantizing one of I-branch and Q-branch signals, extracted from the signal, into a digital signal; an absolute value calculating unit calculating an absolute value of the digital signal quantized by the ADC and outputting a result; an accumulate unit accumulating an output of the absolute calculating unit for a given time period and outputting a result; a square unit squaring an output of the accumulate unit and outputting a result; and a multiply unit multiplying an output of the square unit by a given value and outputting a result, the given value being determined based on the number of input bits, an input clip level, and input resistance of the ADC when the probability density functions at input and output signals of the ADC are approximately Gaussian with zero mean.
Inventors:
Jeong-Il Ye
Hyun-Seo Lim
Don-Sun Kwon
Hyun-Seo Lim
Don-Sun Kwon
Application Number:
JP2006550922A
Publication Date:
October 20, 2010
Filing Date:
June 23, 2004
Export Citation:
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Hanaro Telecom Incorporated
KT Corporation
SK TELECOM CO.,LTD.
Katie Friestel Company Limited
Samsung Electronics Company Limited
Hanaro Telecom Incorporated
KT Corporation
SK TELECOM CO.,LTD.
Katie Friestel Company Limited
Samsung Electronics Company Limited
International Classes:
H04B1/16; H04B17/00
Domestic Patent References:
| JP1065570A | ||||
| JP7176994A | ||||
| JP2003188750A | ||||
| JP2001127732A |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro