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== Overview == * CTIA: Cellular Telecommunications and Internet Association 美国无线通信与互联网协会。是一家成立于1984年的全球性非营利组织,迄今在推动无线以及互联网行业发展方面发挥了积极的作用。 该机构主办的CTIA无线通信展被认为是全球最大规模的专注于无线领域的盛会,迄今已有20余年的历史,展出内容涵盖了无线行业的网络设施、无线服务、终端用户软件、应用和附件、电力等各个方面。 ** CTIA 认证测试实验室,提供针对IEEE 1725和IEEE 1625的全面CTIA认可电池测试服务。 * [https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_common_library/dl_brochures_and_datasheets/pdf_1/TS8991_bro_en_5213-8796-12_v0200.pdf R&S TS8991 OTA Performance Test System] https://www.rohde-schwarz.com/us/product/ts8996-productstartpage_63493-8177.html ** TRP measurements (Total Radiated Power)。This measurement has been fully described and standardized for cellular/mobile and WLAN transmitters by CTIA. Specifics of the measurement, as well as derivations, uncertainty calculations, and more are described in the Over-the-Air Certification Test Plan: '''Method of Measurement for Radiated RF Power and Receiver Performance'''. Typically, this means measuring in 5 – 30° increments for every elevation and azimuthal angle. Also typically, power measurements are taken from both vertical and horizontal polarizations. All of these measurements are combined using calculations set forth by CTIA. TRP is wholly dependent on two parameters: input power and antenna efficiency. ** TIS measurements (Total Isotropic Sensitivity) / TRS (Total Radiated Sensitivity) / EIS (Effective Isotropic Sensitivity) (EIS) * [http://www.emvango.com/home/11/36 电磁方圆国内认证服务] * [https://cdn.rohde-schwarz.com/fr/general_37/local_webpages/2019_demystifying_5g_and_ota/5G_NR_France_June2019_-_OTA_regulation_test_and_measurement_aspects.pdf 5G NR – OTA test & measurement aspects standards & regulations] * [https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_application/application_notes/gfm324/GFM324_1e_5G_NR_BaseStation_OTA_TX_Tests.pdf 5G NEW RADIO OVER-THE-AIR BASE STATION TRANSMITTER TESTS] * [https://scdn.rohde-schwarz.com/ur/pws/dl_downloads/dl_common_library/dl_brochures_and_datasheets/pdf_1/Antenna-overview-OTA-test-systems_fly_en_3608-2136-32_v0100.pdf ANTENNA OVERVIEW FOR ROHDE&SCHWARZ OTA TEST SYSTEMS] * https://wenku.baidu.com/view/68c313e9172ded630b1cb602 <br>
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