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Search Results for: wi-fi

Wi-Fi 7性能更仰赖于无线测试软件

自Wi-Fi 7于一年多前获得Wi-Fi联盟认证以来,作为最新一代通信技术,Wi-Fi正逐步成为用户实现无所不在无线连接的新选择。随着每一代Wi-Fi信号复杂性的提升,建议将硬件测试纳入Wi-Fi产品工具链的公司应同样重视测试软件,以确保系统性能达到最优。 支持Wi-Fi 7功能的电子产品,包括智能手机,已纷纷上市。Wi-Fi联盟估计,去年有超过2.33亿台Wi-Fi 7设备进入市场,并预测到2028年这一数字将超过20亿。 Wi-Fi 7之所以预期能如此迅速地被市场接受,是因为与Wi-Fi 6/6E相比,它提供了更高的数据传输速度、更大的网络容量和更低的延迟。正如我在最近一篇关于Wi-Fi现状的博客中所指出的,Wi-Fi 7(也称为IEEE 802.11be)将正交振幅调制(QAM)提高了四倍至4096 QAM,将带宽翻倍至320 MHz,并增加了多链路操作(MLO),使设备能够同时在多个频率上传输。 这一显著的性能飞跃要求自动化测试和测量设备能够生成并分析复杂的射频(RF)信号,以确保标准合规性、设备互操作性和Wi-Fi 7与其他无线技术的功能共存。这同样适用于测试软件,而许多公司传统上更倾向于内部开发测试软件,但这一做法已渐显弊端。 Wi-Fi 7对传统测试方案的挑战 缺乏全面的测试框架,Wi-Fi 7可能会出现性能问题,如延迟、带宽和范围限制,以及来自蓝牙和旧一代Wi-Fi设备的干扰。 在物理层,Wi-Fi 7需要更严格的误差矢量幅度(EVM)测试来评估射频收发器性能。这是因为Wi-Fi 7更密集的QAM调制能够在每个符号中容纳更多数据位,这就要求更高的信噪比来维持给定频段内的信号完整性。 更严格的EVM容差与复杂的信号处理、信号干扰和设备兼容性要求相结合,意味着自定义测试软件已不再是切实可行的选择。对于Wi-Fi芯片组和接入点供应商而言,受到工程成本限制和内部射频设计专业知识普遍缺乏的困扰,他们发现开发专有测试自动化软件是一个繁琐且耗时的过程,这会耗尽资源并削弱其上市时间优势。 这些经济因素凸显了易于部署、快速集成且针对从设计验证测试(DVT)到大规模生产等多种环境完全优化的现成硬件-软件测试解决方案的重要性。 LitePoint Wi-Fi测试软件减轻客户设计负担 作为Wi-Fi测试解决方案的领先提供商,LitePoint提供了一款完全集成的非信令工具,可针对各种Wi-Fi标准测量其原始射频效能。LitePoint的IQfact+软件测试解决方案支持Wi-Fi 7芯片组以及其他无线标准,提供直观的量产测试介面、测试仪控制、被测设备(DUT)控制和数据记录于一体。 IQfact+利用LitePoint庞大的芯片组配置文件库,该库拥有超过350个配置文件,在行业中遥遥领先。作为一款现成测试解决方案,它可以在几小时内完成部署,而传统测试自动化选项则需要数周或数月的时间来部署,并且需要深入了解测试仪和被测设备控制。 该软件由LitePoint专门的应用工程师团队提供支持,他们深入领先的芯片组公司,以优化Wi-Fi 7芯片组性能并确保与旧版技术的兼容性。 软件测试为Wi-Fi准备铺平道路 Wi-Fi 7为消费者带来了显著的优势,但也为设备供应商带来了严格的测试挑战。LitePoint的IQfact+是一款现成软件解决方案,它缩短了测试开发时间,同时使设备制造商能够保留对优化其产品性能所需测试过程的控制权。 凭借从DVT到大规模测试最广泛的Wi-Fi芯片组支持,LitePoint的现成测试自动化方法意味着制造商可以将时间和资源集中在推出创新产品上,而不是编写测试软件或集成来自众多供应商的解决方案。

Wi-Fi 6 OFDMA Pre-correction Test Solution

Wi-Fi 6 relies on complex OFDMA technology to achieve greater capacity in environments with high device density. With multiple devices sharing the spectrum and transmitting simultaneously, one bad actor can ruin the transmission for all other devices in the network. More than ever verification of compliance to the standard is needed to ensure that Access…

Wi-Fi 6’s OFDMA Challenges Make Verification Crucial

In the new Wi-Fi 6 era, it’s critical to ensure that the next generation of Wi-Fi products meet the highest standards for performance and interoperability. With multiple devices sharing the spectrum and transmitting simultaneously, OFDMA verification is a crucial step toward ensuring a robust Wi-Fi ecosystem.   Read the latest article to understand how Wi-Fi…

Wi-Fi 6 and Wi-Fi 6E testing at Wi-Fi World Congress 2021

Wi-Fi 6 and Wi-Fi 6E holds tremendous promise in powering a paradigm shift in connectivity – but more than ever, innovation is needed to fulfill its huge potential. Catch the replay of Day 5 where industry leaders diving into hardware, optimization software, and testing required to take Wi-Fi to an unprecedented level. Tune into Wi-Fi…

LitePoint Online Tech Exchange

LitePoint Online Tech Exchange: UWB, 5G & Wi-Fi 6 Emerging and evolving technologies create opportunities for players to disrupt the existing ecosystem. With the turning of a new decade, 5G, Wi-Fi 6E and UWB will be the technologies for the next decade of innovation and expansion. Being well equipped with the knowledge needed to prepare…