Abstract:
PROBLEM TO BE SOLVED: To provide an automatic gain control device and the automatic gain control method which converge control action in a stable state during a short period of time in changing frequency of a receiving radio signal which occurs at the time of a compressed mode of WCDMA (Wideband Code Division Multiple Access), etc. SOLUTION: A memory device storing a gain setting value is installed in the automatic gain control device, in changing frequency of the receiving signal from a gain setting value stored in the past, the device predicts and calculates the optimal gain setting value corresponding to a frequency after the change is carried out. The changing over of the frequency is carried out using the gain setting value which is predicted and calculated. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract in simplified Chinese:所揭示无线电通信设备包含:放大器,配置来将经由多数频道之一接收之信号放大,此等频道包含一进行跳频的频道;信号强度测量电路,配置来测量所接收信号之信号强度;以及增益值计算单元,配置来根据信号强度测量电路所测出之信号强度,计算用于放大器之增益值。增益值计算单元系配置来使用个别频道的特定值,作为计算增益值之函数的系数。