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<div class="tt">CTIA V3.9版本变更解读</div>
<div class="txt2 txtimg"><p><strong>2019年底发布CTIA V3.9最新版本，新版本于2020年2月份新版本强制实行，该版本与之前V3.8.2版本有很大变更，</strong></p><p><strong>其中主要包括以下几点：</strong><br/><br/><strong><span style="background-color: rgb(255, 255, 0);">1.&nbsp;新增5G NR FR1(Sub-6GHz)测试</span></strong></p><p>新增5G NR FR1(Sub-6GHz)测试作为参考信息，不是强制测试内容。</p><p>测试频段分别有n2、n5、n41、n66、n70、n71、n78。与LTE不同，LTE一个频段只需测试一个带宽，但5G NR有些频段需要测试两个或三个带宽。</p><p><strong>每个频段的带宽和频率如下：</strong></p><p><img src="/upload_files/2020-07/1594286740773883.jpg" title="1594286740773883.jpg"/></p><p><img src="/upload_files/2020-07/1594286740232199.jpg" title="1594286740232199.jpg"/></p><p><span style="font-size: 16px;"><strong><span style="color: rgb(255, 0, 0);">备注：</span>n66的TIS在带宽40MHz时需要测试四个通道。n70的TRP需要测试5MHz、15MHz两个带宽，n70的TIS需要测试15MHz、25MHz两个带宽。</strong></span><br/><br/><span style="background-color: rgb(255, 255, 0);"><strong>2、增加NB-IoT测试。</strong></span></p><p>测试频段分别有Band 2/4/5/12/13/14/17/25/26/66/71。<br/><br/><span style="background-color: rgb(255, 255, 0);"><strong>3、增加LTE Band48/71频段测试</strong></span></p><p>Band 48的上行频率是3551.58MHz-&nbsp;3698.42MHz，下行频率是3555MHz-3695MHz。Band 71的上行频率是664.58MHz-696.42MHz，下行频率是622MHz-647MHz。<br/><br/><span style="background-color: rgb(255, 255, 0);"><strong>4、新增ZigBee设备OTA测试</strong></span></p><p>增加的ZigBee设备OTA测试仅作为参考信息，不属于强制测试内容。</p><p><strong>TRP/TIS测试通道和频率如下：</strong></p><p><img src="/upload_files/2020-07/1594286771745740.jpg" title="1594286771745740.jpg" alt="3.jpg"/></p></div>
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