A mobile station comprises a wireless transceiver coupled to a processor. The mobile station is configured to receive at the transceiver a control channel transmission on a first frequency from a first cell wherein the control channel transmission is addressed to a unique identifier of the mobile station. The processor is configured to determine that the control channel transmission indicates resources for a data channel. The mobile station is configured to receive at the transceiver a data channel transmission in resources indicated in the control channel transmission, the data channel transmission comprising a first message indicating a first resource for an uplink transmission, wherein the mobile station is configured to transmit, to a second cell on an uplink frequency, a second message using the first resource.