Test & Measurement Archives - Page 14 of 26 - SmartCitiesElectronics.com

Network slicing tests meet power saving protocol for 5G NR

Thu, Jan 06, 2022

Anritsu has collaborated with Qualcomm to deliver what is believed to be the first enhanced network slicing and user equipment (UE) power saving protocol conformance tests for 5G new radio (NR) standalone (SA). The equipment is verified on the 5G NR mobile device test platform ME7834NR powered by Qualcomm’s Snapdragon X65 5G Modem-RF System, which the company says is the world’s first Release 16 modem-RF system.

Network slicing enables support of specific use cases on a set of network resources dynamically configured for the purpose. Third Generation Partnership Project (3GPP) Release 16 introduces support for interworking from evolved packet core (EPC) to 5G core (5GC) for network slices. It also introduces authentication and authorisation controls.

New features for power saving in user equipment is also defined in 3GPP Release 16. These include wake up signal, enhanced cross-slot scheduling, adaptive MIMO (multiple input multiple output) layer reduction and relaxed radio resource management measurement.

The conformance tests are defined by 3GPP in TS 38.523-1 corresponding to core requirements in TS 38.331and have been submitted to 3GPP Radio Access Network Working Group 5 (RAN WG5) by Anritsu. These tests will also be submitted to Global Certification Forum (GCF) Certification Agreement Group (CAG), and PCS Type Certification Review Board (PTCRB) PTCRB Validation Group (PVG) for approval in the upcoming meetings.

The proposal consists of the 5G NR mobile device test platform ME7834NR, which is registered with both the GCF and PTCRB as Test Platform 251.

The ME7834NR is for 3GPP-based protocol conformance test (PCT) and carrier acceptance testing (CAT) of mobile devices incorporating multiple radio access technologies. It supports 5G NR in both standalone and non-standalone in addition to LTE, LTE-Advanced, LTE-A Pro, and W-CDMA. Combined with Anritsu’s over the air (OTA) RF chamber MA8171A and RF converters, the ME7834NR covers the sub-6GHz and millimeter wave (mmWave) 5G NR frequency bands.

http://www.anritsu.com

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Radar scene emulator brings automakers closer to vehicle autonomy

Wed, Dec 22, 2021

Automotive OEMs are provided with full-scene emulation via the Radar Scene Emulator introduced by Keysight Technologies. It enables them to lab test complex, real-world scenarios, accelerating the overall speed of test and full vehicle autonomy.

Full-scene emulation in the lab is critical to developing the robust radar sensors and algorithms needed for advanced driver assistance systems (ADAS)/autonomous driving (AD) capabilities. Keysight’s full-scene emulator combines hundreds of miniature radio frequency (RF) front ends into a scalable emulation screen representing up to 512 objects and distances as close as 1.5 meters.

Using full scene rendering that emulates near and far targets across a wide continuous field of view (FOV), Keysight’s Radar Scene Emulator enables customers to rapidly test automotive radar sensors integrated in autonomous driving systems with highly complex multi-target scenes.

Its patented technology shifts emulation away from target simulation for object detection to traffic scene emulation. This approach allows automotive OEMs to see more with a wider, continuous field of view (FOV) and supports both near and far targets. In this way, gaps in a radar’s vision are eliminated, while enabling improved training of algorithms to detect and differentiate multiple objects in dense, complex scenes. As a result, autonomous vehicle decisions can be made based on the complete picture, not just what the test equipment sees, explained Keysight.

Radar sensors can be tested against a limited number of targets, providing an incomplete view of driving scenarios and masking the complexity of the real-world. Keysight’s radar scene emulator allows OEMs to emulate real-world driving scenes in the lab with variations of traffic density, speed, distance and total number of targets. Testing can be completed early for common to corner case scenes, while minimising risk, added the company.

It also provides a deterministic real-world environment for lab testing complex scenes that can presently only be tested on the road. OEMs can “significantly accelerate ADAS/AD algorithm learning by testing scenarios earlier with complex repeatable high-density scenes, with objects stationary or in motion, varying environmental characteristics, while eliminating inefficiencies from manual or robotic automation,” said the company.

There are point clouds (multiple reflections per object), which improve resolution for each object. For example, distinguishing between obstacles on the road which is required for Level 4 and 5 vehicle autonomy as designated by the Society of Automotive Engineers (SAE).

Keysight will demonstrate the Radar Scene Emulator at CES 2022 (5 to 8 January) at Booth 4169, Las Vegas Convention Center, West Hall.

Keysight’s radar scene emulator is part of the company’s Autonomous Drive Emulation (ADE) platform, created through a multi-year collaboration between Keysight, IPG Automotive and Nordsys. The ADE platform exercises ADAS and AD software through the rendering of pre-defined use cases that apply time-synchronised inputs to the actual sensors and sub-systems in a car, such as the global navigation satellite system (GNSS), vehicle to everything (V2X), camera and radar. The open platform, ADE enables automotive OEMs, and their partners, to focus on the development and testing of ADAS/AD systems and algorithms, including sensor fusion and decision-making algorithms. Automotive OEMs can integrate the platform with commercial 3D modelling, hardware-in-the-loop (HIL) systems and existing test and simulation environments.

http://www.keysight.com

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Rohde & Schwarz and NOFFZ collaborate to develop automotive radar test

Wed, Dec 22, 2021

Test system supplier, Rohde & Schwarz has collaborated with customised test system supplier NOFFZ Technologies to integrate the R&S Compact Antenna Test Range (CATR) reflector technology and radar echo generator, the AREG800A, into NOFFZ’s end of line radar sensor test system, the UTP 5069 CATR. The collaboration results in a fast, accurate and efficient radar sensor test system optimised for production, said Rohde & Schwarz.

Vehicles have to meet Society of Automotive Engineers (SAE) Level 3 ) relying on radar sensors for autonomous driving. Imaging radar sensors have been developed with significantly finer spatial resolution to this end, but this requires much larger antenna apertures. Measuring these radar sensors in the direct far-field (DFF) would be impractical for production environments because they would require too much space. The CATR technology in the R&S ATS1500C chamber, however, creates a large quiet zone with far-field conditions in a very compact physical footprint.

The UTP 5069 CATR is designed for high-volume production test and calibration with a low-reflection anechoic chamber. It is available with a compact footprint of less than 3.5 sqm (40 sqft). The relative motion of the device under test during calibration, loading and unloading can be realised either by an integrated robot or a goniometer. Both motion options can be selected depending on the requirements for movement flexibility, position accuracy, and cycle time.

The test system was validated during its development by leading edge radar module developer Uhnder.

The Rohde & Schwarz technology group offers test and measurement, technology systems, and networks and cybersecurity. Founded more than 85 years ago, the group partners with industry and government customers around the globe.

The company is headquartered in Munich, Germany.

Rohde & Schwarz employs its technical expertise to develop innovative solutions for the entire automotive lifecycle from pre-development to production. OEMs, Tier 1s, chip suppliers and engineering service providers around the world rely on the company’s proven test solutions for automotive radar, connectivity, infotainment, high-performance computing and EMC compliance.

Rohde & Schwarz supports its customers as a partner for the launch of next-generation ADAS and AD systems. The company’s experience and expertise in wireless communications ensure robust connectivity conforming to all standards from 5G and C-V2X to UWB, Wi-Fi and GNSS. The company’s instruments enable the development and debugging of in-vehicle networks.

The company also offers test and measurement equipment and custom turnkey test systems for EMI and EMS measurements on vehicles and vehicle components in line with all major CISPR, ISO and manufacturer-specific EMC standards. These systems and equipment support full vehicle antenna testing and wireless co-existence testing with the user’s own systems and instruments. The company also offers outstanding solutions at the component and board level tests during ECU production.

http://www.press.rohde-schwarz.com

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Rohde & Schwarz and MediaTek deliver Wi-Fi 6E production test

Mon, Nov 15, 2021

Rohde & Schwarz has integrated its CMP180 radio communication test platform into MediaTek’s ATE tool to offer one of the first production test solutions for Wi-Fi 6E devices.

The R&S CMP180 radio communication test platform is designed to manage multiple parallel signals for both multiple devices and MIMO transmission methods, providing maximum measurement speed at frequencies up to 8GHz. The analyser / generator single box tester covers wireless standards including Wi-Fi 6E, Wi-Fi 7 and 5G NR at FR1 frequencies, with a wide range of legacy technologies.

Wi-Fi 6E devices can now take advantage of the 6GHz band to the full power of Wi-Fi 6 by making use of 160MHz channels in a widely uncongested band. They are able to deliver multi-gigabit connection speed, and low latency for applications like working, schooling, gaming and streaming.

In January 2021, MediaTek announced its Wi-Fi 6E platforms for access points and client-side devices have been selected for the Wi-Fi Alliance Wi-Fi 6E Certification Program. The company offers both MT7915-AP-AX (access point) and MT7915-STA-AX (client-side) as testbed devices.

As a result of the co-operation, the R&S CMP180 is now qualified for Wi-Fi production testing with MediaTek’s automatic production test tool (Meta and Multi ATE). MediaTek’s customers using the latest MediaTek mobile platforms with wireless technologies can now integrate the R&S CMP180 in production lines.

According to Dr Yenchi Lee, deputy general manager of MediaTek’s wireless communications business unit at MediaTek explained that the collaboration has enabled customers to speed up development and verification of products using the R&S CMP180 alongside devices under test (DUT) provided by MediaTek.

The Rohde & Schwarz technology group has products for test and measurement, technology systems and networks and cybersecurity. Founded more than 85 years ago, the group is headquartered in Munich, Germany.

http://www.press.rohde-schwarz.com

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Network slicing tests meet power saving protocol for 5G NR

Radar scene emulator brings automakers closer to vehicle autonomy

Rohde & Schwarz and NOFFZ collaborate to develop automotive radar test

Rohde & Schwarz and MediaTek deliver Wi-Fi 6E production test

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