Transmission power control for mobile radio using open and closed loop

作者: Fumiyuki Adachi , Mamoru Sawahashi , Tomohiro Ntt Tomioka Daiichi Dohi

DOI:

关键词: Power controlMobile stationTransmission (telecommunications)Base station identity codeElectronic engineeringPower (physics)Base stationMobile radioEngineeringCode division multiple access

摘要: A transmission power control method of a mobile station in CDMA (Code Division Multiple Access) system which primarily controls the by using closed loop enables high accuracy control. When received at base signal from suddenly increases owing to state buildings surrounding station, must be quickly reduced prevent interference other stations. The measures an average value per period desired and detects difference ΔRSSI between current that one previous periods. If exceeds reference ΔPth, PT corresponding is set open reduce station. lower than determined accordance with bit sent