VIAVI: Real-world Testing of MU-MIMO O-RAN Equipment

Testing gNodeBs in ideal lab conditions is a key step in product development to ensure they meet 3GPP standards. But it's just as important to test in real-world scenarios to make sure they perform well when deployed. For Multi-User MIMO (MU-MIMO), inter-beam interference can seriously impact performance if the O-DU (Open Distributed Unit) miscalculates beamforming weights.

Contents:

• MU-MIMO Benefits

• Getting MU-MIMO Wrong in the Real-world

• Maximize QoS for MU-MIMO Users

• Testing over RF is Complex, Expensive and Can be Difficult to Scale

• Recommended Tests to Perform in the Lab

• Benefits of Testing the O-DU or O-DU/O-CU in Isolation

• Summary.