The disclosure is directed to a method of radio resource scheduling in an unlicensed spectrum and related apparatuses using the same method. In one of the exemplary embodiments, the method would include not limited to transmitting a node control information which may include an occupancy pattern of a radio resource of the unlicensed spectrum before receiving an occupancy notification; transmitting an equipment control information which comprises the occupancy pattern of the radio resource of the unlicensed spectrum before receiving the occupancy notification; transmitting a packet data by using the radio resource of the unlicensed spectrum before receiving the occupancy notification; and receiving the occupancy notification which informs an availability of the radio resource of the unlicensed spectrum.