Method for bandwidth part management in communication system and apparatus for the same

1. An operation method of a terminal in a communication system, the operation method comprising:

receiving bandwidth part (BWP) change information from a base station in a BWP i;

changing an operation BWP of the terminal from the BWP i to a BWP j even when a transmission and reception procedure of first data in the BWP i is not completed at a BWP changing time corresponding to the BWP change information;

performing the transmission and reception procedure of first data in the BWP j; and

performing a transmission and reception procedure of second data in the BWP j when the transmission and reception procedure of first data is completed,

wherein the BWP i and the BWP j are different BWPs, and i and j are different integers.

2. The operation method according to claim 1 , wherein the BWP change information is received through at least one of a radio resource control (RRC) message, a medium access control (MAC) control element (CE), and a downlink control channel.

3. The operation method according to claim 1 , wherein the BWP change information is received together with resource allocation information for the data through a downlink control channel.

4. The operation method according to claim 1 , wherein the BWP change information includes a BWP change notification indicating that a BWP change is requested, information indicating the BWP changing time, and information indicating a new BWP.

5. The operation method according to claim 1 , wherein the information indicating the BWP changing time indicates one of a starting point of a slot, a starting point of a subframe, a starting point of a transmission time interval (TTI), an ending point of a guard period (GP), and a starting point of an uplink transmission period.