Over-the-air measurements system as well as method for testing the over-the-air characteristics of a device under test

An over-the-air measurement system for testing the over-the-air characteristics of a device under test, comprising:

• several antenna units for receiving and transmitting radio frequency signals;
• several remote radio units that convert radio frequency signals into digital signals or vice versa, wherein said several antenna units are connected to said remote radio units;
• a baseband unit for generating and analyzing baseband signals, said baseband unit connected to said remote radio units and comprising several virtual machines, one virtual machine being assigned to one dedicated remote radio unit such that each remote radio unit is assigned to its own virtual machine, said baseband unit having at least one physical layer control unit that is configured to adapt said over-the-air measurement system with regard to the physical layer;
• and
• wherein said several antenna units correspond to beam forming units ensuring beam steering properties of said antenna units so that the main lobe or the respective radiation pattern of said antenna units can be steered appropriately for testing said device under test in a desired manner,
• wherein said several virtual machines are configured to provide different signals simulating different base stations.