Patent ID: 6701136
Filing Date: 2004-03-02
Classification: H04B,H04W

Abstract:
A method for automatically changing transmission power of a three-sector base station in a mobile communication system, wherein the mobile communication system includes a base station manager (BSM) and a base station having a base station control processor (BCP), a plurality of RF Up-converters and a memory, the method comprising the steps of:a) receiving a transmission attenuation value change command and a call completion rate threshold value; b) transmitting the transmission attenuation value change command and the call completion rate threshold value to the BCP; c) detecting optimal transmission attenuation values for CDMA channels in an &agr; sector and storing the optimal transmission attenuation values into the memory; d) detecting optimal transmission attenuation values for CDMA channels in a &bgr; sector and storing the optimal transmission attenuation values into the memory; e) detecting optimal transmission attenuation values for CDMA channels in a &ggr; sector and storing the optimal transmission attenuation values into the memory; f) detecting optimal transmission attenuation values for multiple CDMA channels in the &agr; sector in case of a handoff between the &agr; and the &bgr; sectors and storing the optimal transmission attenuation values into the memory; g) detecting optimal transmission attenuation values for multiple CDMA channels in the &agr; sector in case of a handoff between the &bgr; and the &ggr; sectors and storing the optimal transmission attenuation values into the memory; h) detecting optimal transmission attenuation values for multiple CDMA channels in the &agr; sector in case of a handoff between the &ggr; and the &agr; sectors and storing the optimal transmission attenuation values into the memory; and i) selecting final optimal transmission attenuation values for the multiple channels in each of the sectors and setting each the final optimal transmission attenuation value to corresponding RF up-converter.