Communication apparatus and communication method

An electronic device comprising:

• processing circuitry configured to
• establish a first wireless communication channel with a user equipment (UE),
• determine whether a second communication channel of at least a predetermined quality exists between the UE and a non co-baseband basestation (BS) while the first communication channel between the UE and the electronics device is maintained, wherein
• the first communication channel and the second communication channel use different carrier resources,
• wherein the processing circuitry is configured to receive from the non co-baseband BS at least one of an indication of which part of message traffic for the UE the non co-baseband BS is able to communicate, a preamble for random access, system information of a new carrier on which the UE communicates with the non co-baseband BS, and configuration information of control plane protocol for establishing communication between the UE and the non co-baseband BS.