First, note the different test methods. For LTE, the radio performance can be evaluated by connecting the test equipment directly by cable to the antenna connector of the device under test (DUT). On the other hand, for 5G, since mmWave 5G devices do not have a direct connection port, they are usually tested using an Over the Air (OTA) method. This method works by sending and receiving the data wirelessly between the test equipment and DUT using an antenna to receive signals from the DUT for input to the tester.
Additionally, a 5G laptop may have issues with power consumption and heat generation due to the higher frequencies and communications speed. As a result, these evaluation tests are very important to conduct.
Finally, testing must support both NSA (Non-Stand Alone) and SA (Stand-Alone) methods to evaluate communications at handover from 5G to LTE (switching between base stations) and co-existence with LTE.