METHOD FOR D2D RADIOCOMMUNICATION.

摘要

The present disclosure relates to a method of a first radio device (102) in non- network assisted device-to-device (D2D) communication with a second radio device (103) using a first frequency resource and a first communication protocol. The method comprises determining that the first radio device is within coverage of a cellular network (100). The method also comprises connecting to the cellular network. The method also comprises sending a message to the second radio device, informing said second radio device that the first radio device is within coverage of the cellular network. The method also comprises receiving a message from the cellular network comprising information about a second frequency resource and a second communication protocol. The method also comprises initiating a handover of the D2D communication from the first frequency resource and communication protocol to the second frequency resource and communication protocol.