Wireless communication device and operating method supporting carrier aggregation

An operating method of a user terminal in a wireless communication system supporting carrier aggregation (CA), the operating method comprising:

• receiving indication information regarding a phase tracking reference signal (PTRS) component carrier (CC) group from a base station;
• receiving first through N-th PTRSs from the base station using N CCs included in the PTRS CC group, where N is a natural number of at least two;
• determining whether a phase noise characteristic of the user terminal is the same with respect to the N CCs based at least in part on the indication information;
• and
• performing cooperative phase noise compensation based on the first through N-th PTRSs when it is determined that the phase noise characteristic of the user terminal is the same.

A user terminal in a wireless communication system supporting carrier aggregation (CA),

• the user terminal comprising:
• a transceiver configured to receive indication information regarding a phase tracking reference signal (PTRS) component carrier (CC) group from a base station;
• and
• a controller configured to determine whether a phase noise characteristic of a user terminal is the same with respect to CCs included in the PTRS CC group, based at least in part on the indication information, and
• request the base station to transmit at least one PTRS using at least one CC included in the PTRS CC group,
• wherein the transceiver is further configured to receive the at least one PTRS from the base station using the at least one CC.