Method for reducing power consumption of terminal in mobile communication system using multi-carrier structure

A user equipment (UE), comprising:

• a circuitry which is configured to:
• cause the UE to receive a first message related to a first discontinuous reception cycle;
• cause the UE to monitor a physical downlink control channel (PDCCH) on a first component carrier based on the first discontinuous reception cycle;
• cause the UE to receive a second message related to a second discontinuous reception cycle;
• cause the UE to monitor the PDCCH on the first component carrier based on the second discontinuous reception cycle;
• cause the UE to receive first control information through the PDCCH on the first component carrier, wherein the first control information identifies a second component carrier;
• and
• cause the UE to receive data through a physical downlink shared channel (PDSCH) on the second component carrier based on the first control information,
• wherein the second discontinuous reception cycle is different from the first discontinuous reception cycle.

A communication device for a user equipment (UE), the communication device comprising:

• a circuitry which is configured to:
• cause the UE to receive a first message related to a first discontinuous reception cycle;
• cause the UE to monitor a physical downlink control channel (PDCCH) on a first component carrier based on the first discontinuous reception cycle;
• cause the UE to receive a second message related to a second discontinuous reception cycle;
• cause the UE to monitor the PDCCH on the first component carrier based on the second discontinuous reception cycle;
• cause the UE to receive first control information through the PDCCH on the first component carrier, wherein the first control information identifies a second component carrier;
• and
• cause the UE to receive data through a physical downlink shared channel (PDSCH) on the second component carrier based on the first control information,
• wherein the second discontinuous reception cycle is different from the first discontinuous reception cycle.