US Patent 10993242 Dynamic antenna calibration scheduling

Methods and systems are provided for dynamic performance of antenna calibration. To ensure channel reciprocity of downlink and uplink channels, antenna calibration must be performed with some degree of regularity. The present disclosure includes systems and methods for performing antenna calibration, wherein noise levels are determined at various subframes of wireless telecommunication frame structures as a basis for determining when the calibration signal should be transmitted in an OFDM symbol. Utilizing the disclosed systems and methods yields preferred antenna calibration, avoiding gain degradations caused by decreases in propagation performance.