Method for improving or enabling radio coverage for a mobile communication network, user equipment adapted to have improved radio coverage, relay user equipment adapted to provide improved radio coverage to the user equipment, System, mobile communication network, program and computer program product for improving or enabling radio coverage for user equipment

摘要

A method is provided for improving or enabling radio coverage for a user equipment enabled to use a device to device communication mode (D2D mode) but out of direct radio coverage of a base station entity of a mobile communication network. In a first step, the user equipment transmits a first discovery signal to a relay user equipment, the first discovery signal comprising at least one of a time limitation with respect to a discovery time interval and a synchronization indication. In a second step, the relay user equipment applies, upon reception of the first discovery signal from the user equipment, reception capabilities during a first reception time interval, the first reception time interval comprising and exceeding the discovery time interval in time, wherein the first reception time interval is dependent on at least one of the time limitation and the synchronization indication of the first discovery signal.