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Create a support request nowNos tempos atuais de Internet das coisas, cada vez mais dispositivos são conectados à rede local tornando ainda mais difícil para os departamentos de TI monitorá-los. Os acessos aos instrumentos da Rohde & Schwarz são feitos cada vez mais através de sua interface LAN, isso permite recursos adicionais para conveniência como acesso remoto, transferência de arquivos SMB ou uma interface web. Para facilitar o monitoramento de utilização e estado de instrumentos, alguns dispositivos oferecem uma opção de software, o Serviço de monitoramento de utilização e condições (Health and Utilization Monitoring Service - HUMS).O HUMS pode ser acessado por SNMP e REST (HTTP) e fornece todas as informações necessárias sobre o estado de funcionamento e utilização através do tempo, com muitos detalhes.Essa nota de aplicação descreve como acessar o HUMS e quais dados são fornecidos.
jan. 11, 2021 | AN-Nº. GFM336
O GPRS (General Packet Radio Service) e o EDGE (Enhanced Data Rates for GSM Evolution) fornecem recursos de dados em redes 2G amplamente implantadas atingindo taxas de dados média e de pico de 384kpbs e 200kbps, respectivamente. Dentro da 3GPP Edição 7, melhorias adicionais ao GPRS/EDGE foram especificadas no contexto da evolução de EDGE. Esta nota de aplicação apresenta as principais características da evolução de EDGE e descreve as alterações para a interface de rádio.
abr. 02, 2008 | AN-Nº. 1MA129
This application card examines the best practices for testing video service quality over mobile networks and discusses the different types of video services and recent changes in video streaming.
Apr 18, 2024
Best practices for national regulatory authorities
Key points:Importance of field measurements: Traditional network planning tools and models only offer an estimated view of mobile coverage. Field measurements are conducted under real geographical and load conditions, and therefore provide a more accurate picture and can discover interferences more effectively. Coverage investigations: When deploying a mobile network, operators must adhere to regulatory standards and licensing conditions. As a result, regulatory authorities carry out field measurements on a regular or ad hoc basis to validate compliance or investigate customer complaints. This process identifies coverage gaps and areas of poor network quality, enabling regulatory authorities to take actions to enhance service quality for consumers and guide network expansion.Foster competition: If the field measurements of the coverage and performance are performed on a scale representative of a given country, the transparency of these results can promote healthy competition between operators and better service for consumers, which is essential for economic growth and social development.Measurement Techniques: The harmonized methodology for measuring and evaluating data throughput and QoE based on popular services is described in ETSI TR 103 559.
Apr 15, 2024 | AN-Nº. 8NT14
Spectrum clearance in mobile networks is becoming ever more important as operators use new bands that previously contained other services. This is particularly important for the 5G NR rollout. 5G NR has already initiated a worldwide deployment of TDD networks in an unknown radio environment where unwanted transmitters can create uplink interference masked by downlink signals, making interference hunting particularly demanding. Automated detection of interference signals before a network switches on can be a big help in addition to traditional manual techniques.
Apr 19, 2024
Emergency Call (eCall) is a service provided in Europe with the goal of reducing response times for accidents or other emergencies on the roadways. This application note briefly describes the technology behind eCall and presents conformance tests for eCall using the R&S®CMW500 RF tester and the R&S®SMBV100A vector signal generator. A Test software for eCall makes it quick and easy to perform these tests with the GSM or WCDMA wireless communications standard. It also shows a test solution for GNSS performance tests for eCall using the R&S®SMBV100A vector signal generator and the option R&S®SMBV-K361 together with CMWrun.This application note is outdated. We therefore refer to the newer application note .
Jan 24, 2018 | AN-Nº. 1MA241