An apparatus for use by a communication network control element or function configured to conduct a communication control for a communication with a communication element or function in a communication network, the apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to prepare the communication element or function to conduct measurements for establishing a secondary connection during a random access procedure conducted for establishing a primary connection, wherein the measurements for establishing the secondary connection are to be based on a reference signal to be transmitted by at least one secondary communication network control element or function enabling the establishment of the secondary connection, to receive and process a random access related signaling from the communication element or function regarding the primary connection, to determine a timing for initiating a transmission of the reference signal by the at least one secondary communication network control element or function, and to cause transmission of the reference signal by the at least one secondary communication network control element or function on the basis of the determined timing.