u-blox, a leading global supplier of GNSS modules, and Rohde & Schwarz have successfully validated u-blox’s latest automotive GNSS module in accordance with the recently published Chinese GB/T test requirement for automotive on-board GNSS positioning systems using an automated R&S SMBV100B-based GNSS simulator solution. This cutting-edge solution will be demonstrated at Mobile World Congress 2025 in Barcelona.
Caption:
The R&S SMBV100B-based GNSS simulator solution was used to validate module compliance to the new Chinese GNSS automotive specification.
GNSS (Global Navigation Satellite System) plays an increasingly important role in the automotive industry to enable new infotainment and autonomous driving applications. To ensure the required quality of on-board automotive GNSS systems, the Chinese National Automotive Standardization Technical Committee created the “requirements and test methods for on-board positioning system” guidelines. Rohde & Schwarz is proud to have contributed to the drafting of the standard. These requirements were released on November 28, 2024, with an “implementation date” of June 2025. While the test specification is currently only recommended, it is expected to become mandatory within the upcoming Chinese eCall standard.
The automotive GNSS standard (GB/T 45086.1-2024) requires on-board positioning systems to pass a range of requirements such as tracking sensitivity, acquisition sensitivity, time to first fix, location accuracy, and velocity accuracy, in different multi-constellation and BeiDou-only modes. The standard also defines special events such as week number rollover tests, leap second handling, radio frequency interference, and unexpected pseudo range errors to test the overall robustness of the positioning system. In order to pass the test cases, the GNSS receiver must be able to process signals from two frequency bands simultaneously.
Many of the tests cannot be performed in a real-world environment with live GNSS signals since they are difficult to implement, time-consuming, costly, and impossible to reproduce. This is where the Rohde & Schwarz solution becomes essential. These tests can be performed with the R&S SMBV100B GNSS simulator in the lab under controlled and repeatable conditions. It provides advanced simulation capabilities for configuring realistic and complex, yet repeatable GNSS scenarios that can be run under controlled conditions. Together with the R&S CMWrun sequencer software, a R&S NGC101 power supply, and the R&S SMBVB-K364 software option, the R&S SMBV100B becomes an automated test solution executing the test sequence and providing a pass/fail result as well as test reports.
The test solution is of special interest to GNSS silicon suppliers, GNSS module providers, Tier1 developers of Telematic Control Units (T-Box in China), infotainment systems certification companies, and vehicle OEMs selling to the Chinese market.
For the automotive ecosystem to validate compliance to this new test specification in an automated, standards-compliant, repeatable, and timely manner, cooperation between suppliers in this industry becomes increasingly important. To this effect, Rohde & Schwarz is pleased to cooperate with u-blox.
Gerald Tietscher, Vice President Signal Generators, remarked:
“We are delighted to collaborate with u-blox to enable the automotive positioning ecosystem with a robust, standard-compliance, and automated solution to validate their products against the emerging Chinese GNSS standard.”
This partnership enabled pre-compliance tests across the u-blox portfolio of automotive GNSS receivers, including the ZED-F9L and ZED-F9K, as well as the upcoming u-blox 20 product family.
Andreas Thiel, Head of Business Units, and Co-founder at u-blox AG, remarked:
“We are pleased that Rohde & Schwarz selected u-blox and our EVK-F9DR as a reference kit to showcase this new automated test solution. With R&S advanced testing tools, automotive companies targeting the Chinese market can seamlessly validate their u-blox-based on-board positioning systems against GB/T 45068 and other standards.”
The test setup will be shown at Mobile World Congress in Barcelona, from March 3 to March 6, 2025, at the Fira Gran Via, in Hall 5, booth 5A80.
For more information, visit www.rohde-schwarz.com.
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As a global provider of innovative test and measurement instruments, software, and systems, Rohde & Schwarz employs its technical expertise to advance the automotive industry’s vision of autonomous driving, electrification, and connectivity. OEMs, chip suppliers, Tier 1s, engineering service providers, and certification organizations around the world rely on the test solutions for radar, connectivity including antennas, infotainment, in-vehicle networks, electric drivetrain components, and electromagnetic compatibility. Rohde & Schwarz supports its customers over the entire automotive lifecycle from R&D to production and beyond.
About u-blox
u-blox (SIX:UBXN) is a global leader in automotive, industrial, and consumer markets, driving innovation through our cutting-edge positioning and short-range communication technologies. We are the pioneers behind high-precision technologies, providing smart and reliable solutions that enable people, vehicles, and machines to determine their precise position and communicate wirelessly. With headquarters in Thalwil, Switzerland, and offices across Europe, Asia, and the USA, we are making a global impact. Join us on social media – X, Facebook, LinkedIn, and Instagram – to shape a precise future. Learn more at www.u-blox.com.
Rohde & Schwarz
Rohde & Schwarz is striving for a safer and connected world with its Test & Measurement, Technology Systems, and Networks & Cybersecurity Divisions. For 90 years, the global technology group has pushed technical boundaries with developments in cutting-edge technologies. The company’s leading-edge products and solutions empower industrial, regulatory, and government customers to attain technological and digital sovereignty. The privately owned, Munich-based company can act independently, long-term, and sustainably. Rohde & Schwarz generated net revenue of EUR 2.93 billion in the 2023/2024 fiscal year (July to June). On June 30, 2024, Rohde & Schwarz had around 14,400 employees worldwide.
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