6 結果
5G NR Reduced Capabilities (RedCap) network scanning
Purpose of RedCap: RedCap is designed for use cases requiring reasonable data throughput, cost-efficient devices, reduced power consumption and smaller device footprint to support applications like wireless industrial sensors, video surveillance and smart wearables in which ultralow latency isn’t essential. Technology basics: Understanding the technology basics helps facing configuration complexities and avoiding potential coexistence issues with regular 5G. RedCap field verification: New mobile network technology introductions like 5G RedCap benefit from field measurements during their typical life-cycle phases (engineering, network roll-out, and operation). Measurement Techniques: In early phases of new technologies, passive network measurements using network scanners are reliable and effective in detecting actual network and cell configurations.
Apr 23, 2024 | AN 番号 8NT13
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 番号 8NT14
P25 and FRMCS scanning
Key points: Critical Infrastructure: Learn about mission-critical communication for various agencies who deal with Public Safety such as first responders, police, firefighters, medics and its crucial role in ensuring safety of society.Reliability of Communication: Understand the challenges posed by mission-critical communication, highlighting performance and reliability needs and special requirements such as safe group communications.Technology Migration: Delve into the migration of mission-critical communication from long-standing narrow-band technologies to broadband use cases considering migration timelines.Measurement Techniques: Explore network measurement methods for passive testing of legacy MCX technologies planned to be used in the networks for quite some time (a later release of the document will focus on the broadband successors)
Mar 12, 2024 | AN 番号 8NT12
Spectrum scans are beneficial for many use-cases such as troubleshooting, interference detection and interference hunting, or verification tasks like scheduler verification or other engineering tasks. A time-gated spectrum scan, which is a power spectrum scan which applies a time gate on uplink/downlink slots/symbols and/or the guard period reveals even more details in uplink/downlink or guard period power spectrum. This allows to focus on the uplink / downlink or guard period power spectrum in 5G NR TDD networks. This educational note explains use cases for spectrum measurements, the complexity in 5G TDD and its technology basics, and which problems can be solved with the described solution. The software used is R&S®ROMES4 together with a R&S®TSMx6 drive and walk test scanner.
Sep 21, 2023 | AN 番号 8NT08
Modern societies worldwide depend on the performance, reliability and security of critical infrastructures and networks. There is a plethora of “new verticals” such as manufacturing, warehouse, mining, ports or other critical infrastructure, just to name a few. These “new vertical” use cases all have one common requirement: the mobile network needs to provide a superior performance compared to a commercial mobile network. In such environments 5G brings new capabilities to build fast and secure campus or private networks tuned to higher performance, which can increase productivity and efficiency. To be successful in these business-critical use cases, the wireless networks need to be as reliable as the wired ones. This educational note describes the different test methods to be able to verify the superior network performance and to help finding root causes of potential problems limiting the performance. We distinguish between passive tests and active tests.
Aug 11, 2023 | AN 番号 8NT09
ここ数年、自動車メーカーと政府機関は、交通安全対策の強化、車両通行の管理の効率化、および将来的には快適で便利で安全なドライビングを実現する方法を模索してきました。車両をあらゆるものに接続し、これらの目的の達成をサポートする新世代の情報通信テクノロジーとして登場したのが、V2X(Vehicle-to-Everything)です。V2Xは、今後のドライバー支援システムに新たな局面を加えることを目指して、低遅延のV2V(Vehicle-to-Vehicle、車車間)、V2I(Vehicle-to-Roadside Infrastructure、路車間)、およびV2P(Vehicle-to-Pedestrian、車歩行者間)通信を提供するように考案されています。セルラーV2X(C-V2X)は、リリース14で3GPPによって策定された通信規格として定義され、通信の物理インタフェースとしてLTEテクノロジーを使用します。LTE C-V2Xスキャナーを使用すれば、開発中またはすでに確立されているITSトラフィックシステムを検証、テスト、最適化できます。スキャナーは、RSU(路側機)、車両、またはその他のC-V2X対応デバイスから送信されているPC(5.9 GHz)メッセージを受動的にリスンすることによって、これを実現します。3つの地域(北米、欧州、中国)すべての各物理チャネル(PSCCHおよびPSSCH)およびデコードされたITSメッセージコンテンツの、RF信号パワー/品質(RSRP、RS-CINR、RSSIなど)に関する従来のスキャナー測定値が表示されます。
10月 21, 2022 | AN 番号 8NT07