Apparatuses, methods and computer programs for a remote unit and for a central unit of a base station transceiver

摘要

Apparatus, method and computer program for a remote unit 100 of a base station transceiver 300 in a mobile communication system, the base station transceiver 300 comprising a central unit 200 and the remote unit 100. The remote unit apparatus 10 comprises means for obtaining 12 an uplink receive signal and means for modulating 14 the uplink receive signal into a modulated signal. The modulated signal changes between at least two signal levels, the modulated signal comprises rising and falling edges between the at least two signal levels. A time between the rising and falling edges signals information on the uplink receive signal and means for providing 16 the modulated signal to the central unit 200. Apparatus 20, method and computer program for a central unit 200, the central unit apparatus 20 comprises means for receiving 22 a modulated signal from the remote unit 100 and means for demodulating 24 the modulated signal into an uplink receive signal.