Communication system, network elements and methods for antenna array calibration

摘要

A method, means or computer program for calibrating an antenna array which comprises: applying a signal to a path; feeding back the signal via a switched coupler network; running a calibration routine to determine at least one converged measurement value and using a converged measurement value to normalize measurement values. The calibration system can be used for receive and transmit modes of operation. Non-converged signal results or those which are below a threshold level, obtained from the calibration routine, may be flagged as failed and eliminated from the remaining calibration process. The at least one converged measurement value may be determined by an adaptive filter measurement value.