Method and apparatus for performing and reporting measurements

A communication method and system for supporting a high data transmission rate, which merges a 5G communication system with an IoT technology, thereby transmitting data at a high rate after a 4G system. A method for a terminal in a wireless communication system supporting carrier aggregation includes receiving a control message including indication information indicating that physical uplink control channel (PUCCH) feedback for at least one secondary cell (SCell) is transmitted on the SCell; identifying whether the SCell is configured to the terminal and activated; and if the SCell is configured to the terminal and activated, obtaining Type 2 power headroom information for the SCell. 一种用于支持高数据传输速率的通信方法与系统，其融合5G通信系统与IoT技术，进而以在4G系统之后的高速率发送数据。用于在支持载波聚合的无线通信系统中的终端的方法，包括接收包括指示信息的控制消息，该指示信息指示对于至少一个辅小区(SCell)的物理上行链路控制信道(PUCCH)反馈在SCell上被发送；识别SCell是否被配置到终端并且被激活；并且如果SCell被配置到终端并且被激活，则获得用于SCell的Type 2功率余量信息。