US Patent 10555366 Packet forwarding for an inactive device

A first base station receives from a first core network entity, one or more packets for a wireless device in a radio resource control inactive state. The first base station initiates a radio access network (RAN) paging procedure. The first base station sends to a second core network entity and in response to a failure of the RAN paging procedure, a first message indicating the failure of the RAN paging procedure. The first base station receives, in response to the first message, a second message comprising a tunnel endpoint identifier of a third base station. The first base station sends to the third base station, the one or more packets based on the tunnel endpoint identifier.