The present disclosure relates to a method of radio communication between a first radio device (102) and a second radio device (103) using a first frequency resource and a first communication protocol by means of a network node (101), at least one of the radio devices being served by said network node. The method comprises determining a second frequency resource to use for non- network assisted device-to-device (D2D) communication between the first and second radio devices in case of a radio link failure between said at least one radio device and the network node. The method also comprises determining a second communication protocol to use for the non-network assisted D2D communication between the first and second radio devices in the case of a radio link failure between said at least one radio device and the network node.
