Patent ID: 6633766
Filing Date: 2003-10-14
Classification: H04W

Abstract:
A method of controlling output power of a base station in a wideband code division multiple access (WCDMA) cellular telecommunications system, the method comprising the steps of:combining a plurality of modulated channels into a combined digital baseband signal for a first of a plurality of carrier frequencies transmitted by the base station in the WCDMA cellular telecommunications system; determining, in a digital domain, a power of the combined digital baseband signal for the first carrier frequency; converting the digital baseband signal to an analog signal; determining an RF power of the analog signal for the first carrier frequency, while excluding at least a second of the carrier frequencies transmitted by the base station; calculating a gain value proximate an actual gain utilizing at least the determined power of the combined digital baseband signal and the determined RF power of the analog signal; determining a gain adjustment factor or value utilizing at least the calculated gain value and a target gain value; and applying the gain adjustment factor or value to a digital baseband signal for the first carrier frequency in order to adjust the gain of the base station toward the target gain value.