An apparatus comprising: processing circuitry arranged to cause an enhanced Machine Type Communication, eMTC, user equipment,UE, to: decode control information from an evolved NodeB, eNB, on an anchor channel, the anchor channel being in an unlicensed band, the control information comprising a whitelist, system information broadcast 1, SIB1, scheduling information, and at least one of an uplink, UL, or downlink, DL, subframe configuration, the control information dependent on: whether the UE is configured for adaptive or non-adaptive frequency hopping and, when the UE is configured for adaptive frequency hopping, whether the UE is configured for listen-before-talk, LBT, adaptive frequency hopping; decode, based on the control information, reference signals on at least one of the anchor channel or a non-anchor channel, the non-anchor channel being in the unlicensed band, transmission of the reference signals configured to frequency hop as indicated by the control information; measure the reference signals for at least one of: radio resource management, RRM, or in-sync or out-of-sync measurements, and wherein when the reference signals are measured for RRM, encode the measurements for transmission to the eNB for mobility management, and wherein when the reference signals are measured for the in-sync or out-of-sync measurements, determine from the in-sync or out-of-sync measurements whether an in-or out-of-sync indication is valid and start a counter in response to the valid in- or out-of-sync indication; encode a sounding reference signal, SRS, transmission for transmission to the eNB on the non-anchor channel; and decode, from the eNB, uplink scheduling information for data transmission on the non-anchor channel by the UE, the uplink scheduling information on the anchor channel and dependent on the SRS transmission. decode control information from an evolved NodeB, eNB, on an anchor channel, the anchor channel being in an unlicensed band, the control information comprising a whitelist, system information broadcast 1, SIB1, scheduling information, and at least one of an uplink, UL, or downlink, DL, subframe configuration, the control information dependent on: whether the UE is configured for adaptive or non-adaptive frequency hopping and, when the UE is configured for adaptive frequency hopping, whether the UE is configured for listen-before-talk, LBT, adaptive frequency hopping; whether the UE is configured for adaptive or non-adaptive frequency hopping and, when the UE is configured for adaptive frequency hopping, whether the UE is configured for listen-before-talk, LBT, adaptive frequency hopping; decode, based on the control information, reference signals on at least one of the anchor channel or a non-anchor channel, the non-anchor channel being in the unlicensed band, transmission of the reference signals configured to frequency hop as indicated by the control information; measure the reference signals for at least one of: radio resource management, RRM, or in-sync or out-of-sync measurements, and radio resource management, RRM, or in-sync or out-of-sync measurements, and wherein when the reference signals are measured for RRM, encode the measurements for transmission to the eNB for mobility management, and wherein when the reference signals are measured for the in-sync or out-of-sync measurements, determine from the in-sync or out-of-sync measurements whether an in-or out-of-sync indication is valid and start a counter in response to the valid in- or out-of-sync indication; encode a sounding reference signal, SRS, transmission for transmission to the eNB on the non-anchor channel; and decode, from the eNB, uplink scheduling information for data transmission on the non-anchor channel by the UE, the uplink scheduling information on the anchor channel and dependent on the SRS transmission.