Method and device for avoiding interference due to co-existence within the device

There are a method and a device for avoiding interference due to co-existence within the device (IDC) is provided. A base station receives a measurement report indicating IDC problems that happen to a wireless device. The measurement report includes information regarding at least one interfered frequency befall the IDC problems on the wireless device that can not be solved by itself, the wireless device. The base station transmits to a target base station a handover request with respect to at least the information one interfered frequency.