Automatic gain control for OFDM-based transmission in a wireless communication network (AGC)

摘要

I will now be described technology to perform automatic gain control (AGC) in the receiver. The receiver may receive a symbol composed of the effective OFDM-based portion and a cyclic prefix. The initial receiver gain, and scaling the symbol of the OFDM-based, based on the cyclic prefix, to adjust the initial receiver gain prior to the effective portion, and applying the receiver gain is adjusted, the receiver, the effective it is possible to recover the at least one signal by processing the part, sent by at least one transmitter. For example, based on the received power level for one receiver, at least expected, and the pattern of the receiver different gains, the receiver may select the initial receiver gain. Well, based on the target power and the measured power, the receiver may adjust the receiver gain is also measures the power of a sample set of cyclic prefix during.