802.15.4 HRP UWB Analysis PathWave Vector Signal Analysis (89600 VSA Software)
Technical Overviews
Option 89601BHTC (IoT Modulation Analysis)
What is HRP UWB?
HRP (High Rate Pulse Repetition Frequency) UWB (Ultra-Wide Band) technology is one of the PHY of the IEEE standard 802.15.4, in which it defines the PHY, MAC, and sublayers, with a focus on low-data-rate wireless connectivity and precision ranging. Different PHYs are defined for devices operating in various licensefree brands in various geographic regions.
In January 2018, in response to demand for enhanced operation, the 802.15.4z task group was established. IEEE 802.15.4z is focusing on additional coding and preamble options, as well as improvements to existing modulations to increase the integrity and accuracy of ranging measurements, with a typical range of up 100 meters for the radio. It also enhances the MAC to support control of time of flight ranging procedures and exchange of rangingrelated information between the participating ranging devices.
HRP UWB Modulation Scheme BPM + BPSK
The PSDU (Physical Service Data Unit) performs systematic Reed-Solomon encoding and convolution encoding, and then every two data bits are encoded per BPM-BPSK symbol with g0(k) ∈ {0, 1} which decides the burst position as first half or second half and g1(k) ∈ {0, 1} which decides the burst polarity as positive or negative. See the below figure 1 and 2 for HRP UWB BPM+BPSK modulation
HRP UWB Modulation Analysis
The 89600 VSA software’s Option 89601BHTC provides comprehensive analysis capabilities in the frequency, time, and modulation domains for signals based on IEEE 802.15.4/4z standards (www.ieee.org)
The software provides frequency-, time-, and modulation-domain analysis results in a single measurement. By configuring result traces of spectrum, acquisition time, and HRP UWBspecific, signal quality traces and tables, engineers can identify overall signal characteristics and troubleshoot intermittent error peaks or repeated synchronization failures.
For automated testing, .NET API and SCPI remote interfaces are available to accelerate design, which enables quicker transition to the design verification and manufacturing phases.
HRP UWB is among over 75 signal standards and modulation types supported by the 89600 VSA software. The software is a comprehensive set of tools for demodulation and vector signal analysis. These tools enable you to explore virtually every facet of a signal and optimize even the most advanced designs. As you assess your design tradeoffs, the 89600 VSA helps you cut through the complexity.
Easy setup with complete parameter control
For successful demodulation and troubleshooting, configure your 89600 VSA using the easy to follow graphical user interface (GUI) and adjust a range of signal parameters, which are aligned with IEEE 802.15.4/4z specification.
Dynamic Help allows you to access the help text and learn about the HRP UWB format and features available for Option 89601BHTC. Detaching the Dynamic Help window and moving it to the side of the screen, as shown in Figure 3, enables easier viewing as it follows your menu choices. You can even lock it to stay fixed on important Help data topics.