Optimization of automatic gain control for narrow bandwidth operation

An apparatus for controlling gain of an amplifier in a receiver operating in a cellular communication system, the apparatus comprising:

• circuitry configured to select and then perform an automatic gain control algorithm from among a plurality of automatic gain control algorithms, wherein the circuitry configured to select and then perform comprises:
• circuitry configured to ascertain a current carrier frequency to which the receiver is currently tuned and a target carrier frequency to which the receiver is requested to tune;
• circuitry configured to perform a first automatic gain control algorithm to produce a target gain setting for the amplifier in response to a determination that the current carrier frequency and the target carrier frequency are not within a downlink system bandwidth of a same cell of the cellular communication system;
• circuitry configured to perform a second automatic gain control algorithm to produce the target gain setting for the amplifier in response to a determination that the current carrier frequency and the target carrier frequency are within the downlink system bandwidth of the same cell of the cellular communication system;
• and
• circuitry configured to use the target gain setting to initially control gain of the amplifier when the receiver is tuned to the target carrier frequency.