An apparatus for wireless communication using carrier aggregation in a wireless communication network comprising a primary cell, PCell, and a secondary cell, SCell, the apparatus comprising: a communication interface configured for wireless communication; a memory; and a processor operatively coupled to the communication interface and the memory, wherein the processor and the memory are configured to: transmit, via the communication interface, a first reference signal of the PCell; receive, via the communication interface, a first measurement report from a user equipment, UE, indicating a quality of the first reference signal; determine that the UE is potentially located in a coverage area of the SCell based on the quality of the first reference signal; transmit, via the communication interface, an SCell measurement configuration message for configuring the UE that is potentially located in the coverage area of the SCell to measure a second reference signal transmitted by the SCell for initial beam selection using one or more first beams; and transmit, to the SCell, a signal boost message for triggering the SCell to extend a range of the second reference signal from a first range to a second range, in response to determining that a quality of the second reference signal is less than a predetermined quality. a communication interface configured for wireless communication; a memory; and a processor operatively coupled to the communication interface and the memory, wherein the processor and the memory are configured to: transmit, via the communication interface, a first reference signal of the PCell; receive, via the communication interface, a first measurement report from a user equipment, UE, indicating a quality of the first reference signal; determine that the UE is potentially located in a coverage area of the SCell based on the quality of the first reference signal; transmit, via the communication interface, an SCell measurement configuration message for configuring the UE that is potentially located in the coverage area of the SCell to measure a second reference signal transmitted by the SCell for initial beam selection using one or more first beams; and transmit, to the SCell, a signal boost message for triggering the SCell to extend a range of the second reference signal from a first range to a second range, in response to determining that a quality of the second reference signal is less than a predetermined quality. transmit, via the communication interface, a first reference signal of the PCell; receive, via the communication interface, a first measurement report from a user equipment, UE, indicating a quality of the first reference signal; determine that the UE is potentially located in a coverage area of the SCell based on the quality of the first reference signal; transmit, via the communication interface, an SCell measurement configuration message for configuring the UE that is potentially located in the coverage area of the SCell to measure a second reference signal transmitted by the SCell for initial beam selection using one or more first beams; and transmit, to the SCell, a signal boost message for triggering the SCell to extend a range of the second reference signal from a first range to a second range, in response to determining that a quality of the second reference signal is less than a predetermined quality. <EOS>