The base station may transmit, to a UE, a configuration of a set of secure RSs for each CC of a set of CCs and at least one RE, and instruct the UE to select a subset of CCs from a set of CCs. The base station and the UE may measure the set of secure RS across the at least one RE, and select the subset of CCs from the set of CCs based on the measurement. The base station and the UE may communicate with each other on the subset of CCs. The base station and the UE may communicate with each other on a first CC of the subset of CCs, and switch the CC from the first CC to a second CC of the subset of CCs to communicate with each other, based on a number of ACKs/NACKs transmitted or a pattern.