U7239A MB-OFDM Ultra-wideband (UWB) Physical Layer Validation and Compliance Software

Keysight Technologies, Inc. U7239A MB‑OFDM ultrawideband (UWB) physical layer (PHY) validation and compliance software for Infiniium Series oscilloscopes provides you with an easy way to verify that your MB-OFDM-based UWB designs perform within the boundaries established by the WiMedia MB‑OFDM UWB specification. The Keysight physical layer test software is designed for verifying products that use WiMedia MB-OFDM/ECMA‑368 UWB radios. It displays the measurement data results in a flexible report format, and the report also provides a margin analysis that shows how closely your device passed or failed each test.

You can conduct measurements with the U7239A UWB PHY test software and the Infiniium Series oscilloscope via a simple connection to the SMA input or by attaching the receiver antenna directly to the input of the oscilloscope for radiated testing.

The U7239A UWB PHY test software performs a wide range of tests required to meet the WiMedia/ECMA‑368 UWB PHY specification. The U7239A software is designed to test the requirements documented in the WiMedia1 PHY test specifications versions 1.0 and 1.2. Products that incorporate technologies such as Wireless USB, wireless HDMI, and higher-data-rate Bluetooth® devices that use MB-OFDM need to successfully pass a variety of compliance tests typically based on the original WiMedia specification. The U7239A software allows you to simply select between testing to the original WiMedia specifications or testing to specifications defined by the USB-IF.

Features:

• The U7239A UWB PHY test software offers features to simplify the validation of MB-OFDM PHY performance:
• Full physical-layer transmitter testing as defined by WiMedia PHY test specifications
• WiMedia and Wireless USB test modes
• Test status tracking
• Measurement process configurability
• Automated scope measurement setup
• Test results reports with pass/fail margin analysis

The U7239A setup screens let you specify whether you want to test the PHY with a radiated setup, as in Wireless USB testing, or a conducted setup, as in WiMedia PHY testing.

• The U7239A software guides you through selecting important test information:
• Device type: WiMedia-based PHY or Wireless USB end product
• Test information: For Wireless USB the compliance software requires pre-selecting the TFC and data rate. For WiMedia PHY testing, the software automatically detects these parameters.

After you define the test environment, you are presented with only those tests that are appropriate for the environment you chose. For instance, if you select WiMedia, the testing will use the WiMedia proce­dures and tests. This includes aspects such as averaging multiple packets for EVM

The U7239A MB-OFDM PHY test software provides flexibility in your test setup. It guides you to make connection changes with hookup diagrams when the tests you select require it. For test parameters such as data channel selection, you can select appropriate values. For more critical parameters, such as averaging, default values are tied to the compliance stan­dard; these values can only be altered in the debug screen.

After you configure the test to meet your needs, the U7239A user interface displays the connection screen, which is specific to the configuration data you have selected. Figure 4 illustrates the typical connection guidance provided for a radiated test of a shipping product with integrated antenna

In addition to providing you with measurement results, the U7239A MB-OFDM PHY test software provides a report format that shows you not only where your product passes or fails, but also reports how close you are to the limits specified for a particular test assertion. You select the margin test report parameter, which means you can specify the level at which warnings are issued to alert you to the electrical tests where your product is operating close to the official test limit defined by the MB-OFDM test specification for a given test assertion.

The U7239A MB-OFDM PHY validation software generates thorough reports that not only capture the performance and status of the device under test, but also the screen images of your most significant measurements for your review and evaluation. The first page of the report lists equipment and configuration details required in standard quality assurance programs. It also provides a hot-linked results table that will quickly get you to the measurement report section of interest.

The U7239A software can keep track of the status in a test plan either for compliance testing or for user defined testing and is visually viewable in the Test Run menu

When you use the U7239A MB-OFDM PHY validation and compliance software, it is important to understand the particular UWB technology you are testing and the analysis requirements. The U7239A software is designed to be easy to use and handle most of the testing and documentation needs for WiMedia PHY or Wireless USB verification and compliance testing. For deeper debugging of MB‑OFDM UWB PHYs, the 89601A Option BHB is recommended.

The U7239A MB-OFDM UWB performance validation is compatible with the new Keysight 90000 Series oscilloscopes with operating software revision 1.40 or higher. It is a good idea to always check for the latest software revisions.

The U7239A MB-OFDM UWB performance validation software performs the required tests and many of the informative ones listed in the WiMedia PHY Compliance Test Specification and USB-IF Wireless USB Compliance Test.