1. A method comprising configuring a carrier measurement configuration of plural carriers for automatic terminal measurements relating to network performance on said plural carriers, said plural carriers being carriers in a carrier aggregation for one or more terminals, and indicating the carrier measurement configuration of said plural carriers for automatic terminal measurements towards a base station of said one or more terminals, wherein the automatic terminal measurements relate to logged measurements of said plural carriers for minimizing drive tests, and wherein, in the carrier measurement configuration, said plural carriers are configured for simultaneous automatic terminal measurements of said plural carriers, or for priority-based automatic terminal measurements of any one of said plural carriers based on a predetermined priority of any one of said plural carriers.