Embodiments herein provide mechanisms for configuring an integrated access and backhaul (IAB) mobile termination (MT) with one or more SMTCs. In embodiments the IAB MT may receive a radio resource control (RRC) information element (IE) with configuration information for one or more synchronization signal/physical broadcast channel (PBCH) block (SSB) measurement time configurations (SMTCs). For example, in some embodiments, the RRC IE may include configuration information for multiple SMTCs (e.g., 4 SMTCs). The IAB MT may perform one or more measurements on the multiple SMTCs and/or a selected one of the SMTCs. Other embodiments may be described and claimed.