How to Perform O-RAN Radio Unit Conformance Testing

+ O-RU Conformance Testing Solution

Testing O-RU conformance to the 5G NR standard

Testing open radio access network (O-RAN) radio unit (O-RU) conformance to the 5G New Radio (NR) standard requires analysis of the radio frequency (RF) response of the O-RU. The O-RU executes C-plane commands without an acknowledgment back to the O-RAN distributed unit (O-DU). These messages transmit at extremely high data rates and have a very tight timing tolerance. Engineers need to analyze the RF response of the O-RU to determine whether it understands and correctly acts on the O-DU’s commands.

The test system includes the O-RU as the device under test, O-DU emulator, signal analyzer, and signal source. The test system requires synchronization to a common clock to ensure alignment within the entire system and adherence to tight timing tolerances. A comprehensive O-RU compliance test requires an integrated and automated setup to configure test cases for design validation and manufacturing according to the conformance test requirements.

O-RU conformance test solution

Performing next-generation O-RAN equipment design, validation, and production requires comprehensive conformance testing with a test system synchronized to a common clock and capable of responding to tight timing tolerances. The Keysight O-RU conformance test solution hardware and software enables comprehensive, integrated, and automated testing for design validation and manufacturing, according to the O-RAN RU conformance test requirements in the 5G standard.

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