METHOD AND DEVICE(S) FOR SUPPORTING CALIBRATION OF A MULTI-ANTENNA ARRAY COMPRISED IN AN ANTENNA DEVICE OPERATIVE WITH A WIRELESS COMMUNICATION NETWORK

摘要

Method and one or more first devices (110; 120; 200; 201) for supporting calibration of a multi-antenna array (250; 350) comprised in a first antenna device (110; 120) operative with a wireless communication network (100). The first device(s) provide (605; 5711; 805) phase correcting information, to be used in calibration of the multi-antenna array (250; 350), based on covariances corresponding to recurrent displacement vectors (352) of the multi-antenna array (250; 350). Said covariances being based on channel estimates estimated from certain radio signals received after transmission over radio propagation channels (125) between said multi-antenna array (250; 350) of the first 10antenna device (110; 120) and one or more second antenna devices (120, 121; 110) operative with the wireless communication network (100).