A method of controlling full-duplex radio transmission, the method comprising: - on the same carrier frequency, a radio device (10-A, 10-B, 10-C, 100) transmitting outgoing radio signals to a further radio device (10-A, 10-B, 10-C, 100) and receiving incoming radio signals from the further radio device (10-A, 10-B, 10-C, 100); and - the radio device (10-A, 10-B, 10-C, 100) switching at least between a first antenna configuration and a second antenna configuration, wherein in the first antenna configuration the outgoing radio signals are transmitted via at least one first antenna while simultaneously the incoming radio signals are received via at least one second antenna, wherein in the second antenna configuration the outgoing radio signals are transmitted via the at least one second antenna while simultaneously the incoming radio signals are received via the at least one first antenna, - the radio device (10-A, 10-B, 10-C, 100) estimating first radio channel characteristics on the basis of the incoming radio signals received in the first antenna configuration and second radio channel characteristics on the basis of the incoming radio signals received in the second antenna configuration, - in the first antenna configuration, the radio device (10-A, 10-B, 10-C, 100) controlling transmission of the outgoing radio signals on the basis of the second radio channel characteristics and/or controlling reception of the incoming radio signals on the basis of the second radio channel characteristics; and - in the second antenna configuration, the radio device (10-A, 10-B, 10-C, 100) controlling transmission of the outgoing radio signals on the basis of the first radio channel characteristics and/or controlling reception of the incoming radio signals on the basis of the first radio channel characteristics. - on the same carrier frequency, a radio device (10-A, 10-B, 10-C, 100) transmitting outgoing radio signals to a further radio device (10-A, 10-B, 10-C, 100) and receiving incoming radio signals from the further radio device (10-A, 10-B, 10-C, 100); and - the radio device (10-A, 10-B, 10-C, 100) switching at least between a first antenna configuration and a second antenna configuration, wherein in the first antenna configuration the outgoing radio signals are transmitted via at least one first antenna while simultaneously the incoming radio signals are received via at least one second antenna, - the radio device (10-A, 10-B, 10-C, 100) estimating first radio channel characteristics on the basis of the incoming radio signals received in the first antenna configuration and second radio channel characteristics on the basis of the incoming radio signals received in the second antenna configuration, - in the first antenna configuration, the radio device (10-A, 10-B, 10-C, 100) controlling transmission of the outgoing radio signals on the basis of the second radio channel characteristics and/or controlling reception of the incoming radio signals on the basis of the second radio channel characteristics; and - in the second antenna configuration, the radio device (10-A, 10-B, 10-C, 100) controlling transmission of the outgoing radio signals on the basis of the first radio channel characteristics and/or controlling reception of the incoming radio signals on the basis of the first radio channel characteristics.