Testing O-RAN radio unit 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-RAN 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-RAN radio unit 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-RAN 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.
How to Perform O-RAN Radio Unit Conformance Testing
U5040BSCB Open RAN Studio for O-RU Testing and Validation
Open RAN Studio includes powerful O-RAN focused tools to construct, play, capture, and measure O-RAN traffic over Ethernet fronthaul interfaces. Optional extraction of IQ vectors enables modulation analysis with Keysight 89600 VSA software.
How to Perform O-RAN Radio Unit Conformance Testing
S5040A Open RAN Studio Player and Capture Appliance
The Keysight S5040A is an instrument grade test and measurement appliance designed to operate with Keysight’s PathWave Signal Studio and Open RAN Studio to emulate a Distributed Unit (O-DU), capture O-RAN uplink communications, and perform the measurements necessary to validate an O-RU’s functional operation and performance.