共查询到19条相似文献,搜索用时 78 毫秒
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通过对美国无线通信和互联网协会CTIA的OTA测试规范3.2.2版本进行解析,比对之前认证使用的3.1版本的区别进行重点解析,并深入分析新增加的LTE各项测试要求。对CTIA的授权认证过程,详细分析了新版本的CTIA认证程序文件AVRD的各个章节审核的重点要点,为CTIA授权实验室的认证提供了指导,有助于实验室技术能力的提升。 相似文献
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目前,无线通信设备的OTA测试作为辐射性能测试的重要性能指标,已在欧美及中国等大多数国家作为强制性准入测试。该文对CTIA OTA测试规范目前的制修订工作进行了深入分析研究,并在目前版本的CTIA OTA测试规范技术要求的基础上,对规范制修订过程中的技术重点进行了解剖,特别是LTE及MIMO技术将是CTIA OTA测试规范的重要发展方向,因此详细解析了MIMO OTA等测试的技术特点,指导了实验室或系统供应商以后的OTA系统升级和技术能力的提升。 相似文献
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介绍Wi-Fi联盟最新认证项目Wi-Fi Aware,对比了Wi-Fi Aware和i Beacon的异同点。给出了WiFi Aware设备应满足的要求、Wi-Fi Aware的认证流程。最后,对Wi-Fi Aware认证测试进行了说明。 相似文献
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对终端的WLAN性能测试做了初步的探讨,重点论述了如何通过测试手段来确保Wi-Fi终端设备的性能,以满足企业和消费者对高业务质量的要求。 相似文献
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分析了服务提供商用于将其Wi-Fi部署从热点便利服务升级至关键的3G/4G负载分流解决方案的最佳实践,以及之前的部署实践,强调了驱使服务提供商采用新解决方案将Wi-Fi部署为蜂窝网络负载分流解决方案的关键制约因素。描述了这些服务提供商是如何提升其Wi-Fi网络部署实践来解决这些问题,以及如何提供高质量解决方案以满足通过Wi-Fi进行蜂窝网络负载分流的需求。 相似文献
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A Wi-Fi security evaluation model was proposed based on BP neural network.Firstly a large number of Wi-Fi hotspots was analyzed,safety information sources about wireless hotspots were selected.Secondly,a model of BP neural network was constructed,the weights were adjusted,and the evaluation system for Wi-Fi safety was formed,which was higher credibility.Finally,on the Android flatform the application based on above theory was designed.A lot of experi-ments show the model is able to scan and evaluate the wireless hotspot around user.It can also provide the disconnect function on unsafe wireless hotspot. 相似文献
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虽然Wi-Fi是一项广受欢迎的技术,但是如何让Wi-Fi盈利至今还是一个值得探讨的话题.本文探讨了Wi-Fi一种新的商业应用--广告模式,即利用WiFi的一些特征来进行广告发布的活动,同时探索了一些创新的广告表现形式,为Wi-Fi的进一步发展提供思路. 相似文献
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Wi-Fi mesh是一种适用于大面积或复杂户型的Wi-Fi自组网解决方案,为用户提供全覆盖、自切换、易安装的优质无线网络。Wi-Fi mesh具备自组网、自管理、自修复和自平衡等诸多优点,但现有Wi-Fi mesh产品实现方案存在标准不统一、实现复杂、终端能力要求高、无法互通的问题。首先讨论了现有家庭网络中多热点AP协同工作的实现情况,接着对当前Wi-Fi mesh主流技术进行了分析,重点探讨了家庭Wi-Fi mesh的技术方案和对比。进而面向家庭应用场景,为运营商提出了一种模块化、易实现、终端能力需求低且互通性好的Wi-Fi mesh技术实现方案。 相似文献
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In this paper, two different Wi-Fi shaped Substrate Integrated Waveguide (SIW) antennas are designed and fabricated. Both antennas were designed to operate at 7 GHz frequency or in centimeter-wavelength range. The essential parameters and dimensions of the proposed designs were estimated theoretically via mathematical calculations. Both the antennas were then simulated by using CST Studio suite finite element method based simulation software and have been optimized to operate within the Wi-Fi, Bluetooth and Wi-Max frequency bands respectively. In fabrication process, Wi-Fi shaped antennas were designed by taking dimensions of patch as 35 (L) mm × 26 (W) mm × 0.035 (h) mm on Roger RT Duroid 5880 substrate. The copper metal of thickness 8270 μm with loss tangent is 0.0009 is deposited with dielectric constant 2.20 on the substrate. Then microdrill is used to obtained vias or holes on the substrate. Experimental results related to antenna parameters highlighted in the paper further shows that fabricated SIW antennas are in good agreement with the predicted values calculated by the simulated model. Based on the experimental prototypes modeling, a thorough comparative analysis between the two different Wi-Fi shaped SIW antennas is investigated for different parameters like gain, bandwidth, reflection coefficient (S11) and radiation pattern & hence highlighted in the paper. The results of double Wi-Fi shaped antenna reveal better performance than the single Wi-Fi shaped antenna. 相似文献
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无线接入互联网和无线多媒体数据业务的市场需求推动了无线通信技术的快速发展,通信技术宽带化、IP化、移动化成为未来的发展趋势.其中具有代表性的技术就是:Wi-Fi和移动WiMAX技术.本文从市场、技术、运营的角度来分析移动WiMAX和Wi-Fi的定位,探讨二者融合的可行性并给出建议. 相似文献