Measurement method and apparatus for supporting mobility in communication system

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

• receiving, from a base station, first control information including first information indicating a physical uplink shared channel (PUSCH) interlace configured in an unlicensed band and second information indicating one or more resource block (RB) sets;
• identifying frequency resources corresponding to the PUSCH interlace in the one or more RB sets;
• and
• transmitting a PUSCH to the base station using the identified frequency resources in the unlicensed band,
• wherein each of the one or more RB sets includes one or more RBs, the PUSCH interlace is indicated by an index, the index being the first information when a subcarrier spacing of a bandwidth part (BWP) to which the PUSCH interlace belongs is a first value, and the PUSCH interlace is indicated by a bitmap, the bitmap being the first information when the subcarrier spacing is a second value.