Together with Rohde & Schwarz, HEAD acoustics has successfully verified communication quality of 5G (VoNR)-capable devices. For the test solution, the interoperability between the hardware platform labCORE, the measurement and analysis software ACQUA and the latest generation of the R&S CMX500 wideband radio communication tester was verified. The setup allows simulation of a voice connection in both 5G (VoNR) and 4G (VoLTE) networks. This enables manufacturers of 5G-capable telecommunications devices to test the voice quality of their devices at an early stage before market introduction. The solution was presented at the Mobile World Congress in Shanghai in February 2021 for the first time.
Connection establishment in a 5G mobile network
Mobile phones under test can register with the integrated IP multimedia subsystem (IMS) server of the R&S CMX500 platform via the simulated 4G or 5G mobile network, depending on the use case. labCORE is connected through wired Ethernet using the integrated IP forward mode of the IMS server, specifically developed for this use case. This allows users to forward the voice data of a call established with the R&S CMX500 directly to labCORE for detailed voice quality analysis. In this mode, the system fully supports the 5G speech codecs EVS (Enhanced Voice Service), AMR-WB and AMR-NB. Using the test suite TS 26 131-32 for use with the measurement and analysis software ACQUA developed by HEAD acoustics, the system fully covers all significant acoustical requirements. This reliable solution enables manufacturers of 5G-capable telecommunications devices to test the voice quality of their devices at an early stage and prepare for rollout of 5G voice services.
Christoph Pointner, Senior Vice President Mobile Radio Testers at Rohde & Schwarz, says: "The successful collaboration between the two companies in the field of voice quality analysis for 2G, 3G and 4G, based on the R&S CMW500 platform, is extended to 5G with our R&S CMX500. The jointly verified test solution enables reproducible test results and allows device manufacturers and network operators to ensure an optimized 5G voice experience at an early stage."
"With the interoperability to the Rohde & Schwarz solution, we can provide our customers with a crucial supplier we are compatible with in shortest time," adds Christian Schüring, Head of Sales Department Telecom at HEAD acoustics GmbH. "This is an important step to measure and optimize the communication quality of 5G-enabled devices."
As a world's leading provider of holistic solutions for measuring, analyzing and optimizing communication quality, HEAD acoustics is addressing the challenges of future 5G and 6G functions with industry partners early on to offer customers in the entire communications industry even more comprehensive test solutions.
HEAD acoustics GmbH是全球领先的声音和振动分析解决方案供应商之一。我们在开发用于测量、分析和优化语音和音频质量的硬件和软件，以及客户订制解决方案和服务方面拥有专业的技术和开拓进取的精神，因此在电信领域获得全球认可。HEAD acoustics的服务范围涵盖技术产品的声音工程、环境噪声调研、语音质量工程、咨询、培训和技术支持。HEAD acoustics 位于亚琛附近，在中国、法国、印度、意大利、日本、韩国、英国、美国设有子公司，并在全球拥有众多销售合作伙伴。
