1. A user equipment, comprising:a receiver, configured to receive indication information sent by a network side device;
a processor, configured to activate a second carrier of dual cell high speed uplink packet access (DC-HSUPA) according to the indication information, and to acquire uplink discontinuous transmission (DTX) parameters; and
a transmitter, configured to periodically send an uplink dedicated physical control channel (DPCCH) on the second carrier of the DC-HSUPA according to the indication information and the uplink DTX parameters,
wherein the indication information comprises a time point before which the transmitter is prohibited from sending the uplink DPCCH on the second carrier of the DC-HSUPA.