PXI 5G basestation test for mmWave small cells

October 21, 2020 //By Nick Flaherty
PXI 5G basestation test for mmWave small cells
Keysight's S9130A PXI-based 5G Performance Multi-Band Vector Transceiver (VXT) is at the heart of a test system for cost-effective over-the-air (OTA) testing of 5G network infrastructure

Keysight Technologies has launched a 5G base station test system for network equipment manufacturers (NEMs) and small cell vendors to validate millimetre wave (mmWave) devices to the latest 3GPP specifications.

Mobile operators are deploying 5G new radio (NR) in frequency range 2 (FR2) to deliver enhanced mobile broadband (eMBB) connectivity in metropolitan areas and indoor environments such as stadiums and airports.

Rapid deployment of a heterogenous network, consisting of macro base stations, small cell infrastructure, radio units (RUs) and distributed antenna systems (DAS), depends on streamlined testing across the workflow. Keysight has extended the company's suite of 5G base station test solutions, initially launched in 2018, to meet a growing need for cost-effective 5G mmWave test and validation.

The test system is based on Keysight's PXI-based S9130A 5G Performance Multi-Band Vector Transceiver (VXT) that provides adjacent channel leakage ratio (ACLR) and error vector magnitude (EVM) measurements. This brings the measurement plane closer to the device under test (DUT) so that the DUT can receive high power levels across a wide dynamic power range, resulting in higher accuracy and more reliable measurements.

"Keysight's new 5G base station test solution allows NEMs to validate 5G high performance macro base stations in manufacturing, and vendors of 5G small cells to validate mmWave products in R&D and design validation," said Giampaolo Tardioli, vice president and general Manager for Keysight's network access group. "The solution combines the new 5G performance multi-band VXT with Keysight's internal common interface unit (CIU) and mmWave remote radio head (RRH) to deliver high performance over-the-air (OTA) testing in a compact form factor."

Keysight's S9100 tools support multiple channels for testing several base stations in parallel and leverage the company's cloud-ready suite of PathWave software solutions to simplify and speed testing as vendors scale from design validation to volume test. Supported PathWave solutions include X-Series measurement applications for basic measurements such as EVM and ACLR as well as 5G NR signal creation and playback for characterizing power and modulation performance of components and transmitters. The 89600 Vector


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