High efficiency, remotely reconfigurable remote radio head unit system and method for wireless communications

摘要: A remote radio head unit (RRU) system is disclosed. The present invention based on the method of adaptive digital predistortion to linearize a power amplifier inside RRU. characteristics such as variation linearity and asymmetric distortion output signal are monitored by wideband feedback path controlled adaptation algorithm in module. Therefore, embodiments can compensate for nonlinearities well memory effects systems also improve performance, terms added efficiency, adjacent channel leakage ratio peak-to-average ratio. disclosure enables be field reconfigurable support multi-modulation schemes (modulation agnostic), multi-carriers, multi-frequency bands multi-channels. Consequentially, particularly suitable wireless transmission systems, base-stations, repeaters, indoor coverage systems.