APPARATUS FOR MEASURING RECEIVED POWER IN BASE STATION OF CDMA SYSTEM CAPABLE OF SUPPORTING 3FA

PURPOSE: An apparatus for measuring received power in a base station of a CDMA system capable of supporting 3FA is provided to measure received power by simultaneously performing an analog/digital processing of a 3FA signal in a base station of a CDMA system. CONSTITUTION: An analog processing unit(10) receives an RF signal and converts the signal into an IF signal. A digital processing unit(20) converts the signal converted from the analog processing unit(10) into a digital signal. A received power measuring unit(30) is composed of the first, the second and the third received power measuring unit(40,50,60) capable of measuring received power. The analog processing unit(10) is composed of a receiving antenna(11) capable of receiving a 3FA(Frequency Assignment) and an RF (Radio Frequency) signal simultaneously, a BPF(Band Pass Filter)(12) capable of performing band limitation of the 3FA and the RF signal simultaneously, an LNA(Low Noise Amplifier)(13) capable of amplifying the 3FA and the RF signal and a mixer(14) capable of converting the 3FA and the RF signal amplified from the LNA(13). The digital processing unit(20) is composed of an A/D conversion unit(21), the first to the third I, Q signal mixer(22-1-21-6), the first to the third I signal down sampling filter(23-1, 3, 5), the first to the third Q signal down sampling filter(23-2,21-4,21-6) and the first to the third I, Q signal channel filter(24-1-21-6). The A/D conversion unit(21) converts the 3FA and the IF signal converted from the mixer(14) into digital signals. The first to the third I, Q signal mixer(22-1-21-6) separate the digital signals converted from the conversion unit(21) into I and Q signals. The first to the third I, Q signal channel filter(24-1-21-6) perform channel filtering of signals passed through the first to the third I, Q signal down sampling filter(23-1-21-6).