Dedicated reference signaling for cell activation

Abstract

Methods, systems, and devices for wireless communications are described. A network entity may transmit a control message (e.g., a control message including an instruction to activate a secondary cell (SCell)) which may include an indication of one or more aperiodic narrowband reference signals for SCell activation. A user equipment (UE) may monitor for and receive the narrowband reference signals based on the dynamic control signaling indicating the narrowband reference signals. The network may indicate the resources for the narrowband reference signals via radio resource control (RRC) signaling, dynamic control signaling (e.g., a media access control (MAC) control element (CE) or downlink control information (DCI) message that indicates that the UE is to activate the SCell), or both.

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