Antenna array calibration for wireless communication systems

摘要

Calibration for a transmit chain of a device transmitting information to multiple devices over wireless links includes selecting from between two or more calibration determination techniques. In certain aspects the techniques include phase only calibration and phase and amplitude calibration.

主权项

1. A method of calibrating an antenna array, comprising:
determining first calibration weights for the antenna array using phase only estimates based upon a first calibration technique; determining second calibration weights for the antenna array using phase and amplitude estimates based upon a second calibration technique; and determining whether to apply the first calibration weights from the first calibration technique or the second calibration weights from the second calibration technique to the antenna array based on (a) an output provided by utilizing the first calibration weights, (b) an output provided by utilizing the second calibration weights, or (c) both (a) and (b).