GPS World

Tag: design verification testing

  • 5G LBS features verified on R&S TS-LBS test solution

    5G LBS features verified on R&S TS-LBS test solution

    Photo: Rohde & schwarz
    Photo: Rohde & schwarz

    Rohde & Schwarz and MediaTek have verified new location-based services (LBS) features for 5G new radio (NR), which are now available on the R&S TS-LBS test solution.

    The features will improve emergency caller location and support LBS-related use cases in challenging indoor and outdoor environments with both satellite-based and terrestrial technologies. The R&S TS-LBS now support these and other 3GPP Release 16 network-based positioning features.

    A 5G chipset from MediaTek also has been verified for Release 16, which ensures the chip’s  positioning features.

    The two companies verified the NR positioning reference signals (NR-PRS), which are central to network-based positioning features such as round-trip time (RTT), time difference of arrival in uplink and downlink (UL- TDOA and DL-TDOA), or angle of arrival and departure (AoA and AoD), and which meet the 5G requirements for indoor and outdoor positioning use cases.

    With R&S TS-LBS supporting these features, mobile device and chipset manufacturers as well as test houses and network operators can carry out verification for GCF, PTCRB and network-operator certification using a single test solution.

    About the R&S TS-LBS System

    The R&S TS-LBS is a test system for testing GNSS and network-based positioning. It consists of an R&S CMX500 OBT one-box signaling tester as the network simulator and an R&S SMBV100B GNSS simulator.

    The R&S CMX500 OBT setup provides full network simulation capabilities including the support of multiple 4G or 5G cells at a time. In addition, it provides LBS assistance data to the DUT while the R&S SMBV100B simulates the GNSS satellites.

    The R&S TS-LBS test system can be used for pre-conformance tests and to obtain GCF and PTCRB certification as well as network-operator-specific certification acceptance and validated tests.

    “Adding network-based positioning features such as DL-TDOA based on NR-PRS to the existing satellite based location signals shows the advanced level of our test solution,” said Christoph Pointner, senior vice president, Mobile Radio Testers, Rohde & Schwarz. “We are happy to continue our collaboration with MediaTek to push 5G location-based services further for 3GPP Release 16.”

  • Emcore’s EN-300 FOG IMU in high-rate production

    Emcore’s EN-300 FOG IMU in high-rate production

    EN-300 Precision Fiber Optic IMU/INS (Photo: Emcore)
    EN-300 Precision Fiber Optic IMU/INS (Photo: Emcore)

    Emcore Corp.’s EN-300 FOG (fiber optic gyro) inertial measurement unit (IMU) is now in high-rate production and is broadly available for purchase with 12-week lead times. The EN-300 was announced in April.

    Based in Alhambra, California, Emcore providees advanced mixed-signal products that serve the aerospace, defense and broadband communications markets.

    Emcore’s EN-300 offers up to 10 times the bias performance of legacy systems in a form, fit and function compatible package, the company said. This improved performance makes the EN-300 suitable for GPS-denied navigation, precise targeting and line-of-sight stabilization requirements for unmanned aerial vehicles as well as other demanding applications.

    Emcore has successfully completed a comprehensive Design Verification Testing (DVT) regimen over tough environmental conditions and has provided numerous proof-of-technology IMUs globally to defense contractor primes and aerospace customers seeking to upgrade their platforms and systems. Emcore is now expanding production of the EN-300 with strict manufacturing process and quality controls in place to enhance on-time delivery and specification compliance.

    “Given the strong market interest and demand, we are extremely pleased to announce the production ramp-up and broad availability for purchase of the EN-300,” said David Hoyh, Emcore’s director of sales & marketing for navigation products. “Emcore’s vertical integration creates unique capabilities that enable us to deliver the higher level of performance demanded by the market, coupled with greater precision and lower cost to further benefit our customers.”

    According to Emcore, the EN-300 precision FOG IMU is a three-axis, closed-loop design using the Company’s proprietary, solid-state FOG transceiver with advanced integrated optics, offering improved reliability and lower cost than legacy IMUs. It can be ordered with performance options tailored to specific customer requirements.

    The COTS (commercial off-the-shelf) EN-300-3 model achieves bias in-run stability as low as 0.04 degree/hr with ARW (Angle Random Walk) of 0.015 degree/rt-hr. The non-ITAR EN-300 is superior in performance to older generation such as the closed-loop LN-200 IMU or open-loop KVH 1750 series IMU units that have higher bias over temperature drift.