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	<div class="tt">【预告】IC Wi-Fi 5G 气象频段即将开放！</div>
	<div class="txt2 txtimg"><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">过去在执行FCC和IC Wi-Fi 5G认证测试时，FCC可以使用完整的5470-5725 MHz频段，而IC只能使用5470-5600 MHz和5650-5725 MHz频段。其中，5600-5650 MHz频段被禁用是为了保护加拿大环境部在该频段中运行的天气雷达。因此，IC的Wi-Fi 5G测试报告相较于FCC，需要删除掉气象频段5600-5650 MHz相关的频率。例如，160 MHz带宽的5570 MHz频率就需要删除，不能使用。然而，IC在今年2月份更新了<span class="s1" style="color: red;">RSS-247 Issue 4的草稿版，解除了对气象频段的限制，即将可以使用5600-5650 MHz频段了</span>。</p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><br/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><strong>若想了解RSS-247 Issue 4草稿版还有哪些变化？以下内容您一定不要错过：</strong></p><p class="p2" style="text-align: justify; font-family: Arial; font-size: 15pt; text-wrap-mode: wrap;"><br/></p><p class="p3" style="font-family: Arial; font-size: 16pt; text-wrap-mode: wrap;"><span class="s2" style="font-weight: bold; color: rgb(0, 176, 240);"></span></p><hr/><p class="p3" style="font-family: Arial; font-size: 16pt; text-wrap-mode: wrap;"><span class="s2" style="font-weight: bold; color: rgb(0, 176, 240);">&gt;&gt; 标准新旧差异 &lt;&lt;</span><br/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><br/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">RSS-247 Issue 4草稿版与RSS-247 Issue 3正式版的标准差异如下表所示：</p><p><img src="/upload_files/2025-03/1742463837440473.jpg" title="1742463837440473.jpg" width="800" height="1279" alt="1742463837440473.jpg"/></p><p><img src="https://www.newbtl.com/upload_files/2025-03/1742463837620518.jpg" title="1742463837620518.jpg" width="800" height="941" alt="1742463837620518.jpg"/></p><p><img src="/upload_files/2025-03/1742463837111800.jpg" title="1742463837111800.jpg" width="800" height="1169" alt="1742463837111800.jpg"/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">从上面的新旧标准差异表可以看出，新版标准主要是<span class="s1" style="color: red;">解除了气象频段5600-5650 MHz的限制，并要求这一频段的DFS要求需参照CE执行测试，还有不带雷达侦测的客户端设备只需测试CMT和CCTT，不需要测试不可占用周期</span>，其它内容仅细微变化，对于目前做法没有太大影响。</p><p class="p7" style="text-align: justify; font-family: Arial; font-size: 16pt; text-wrap-mode: wrap;"><br/></p><p class="p3" style="font-family: Arial; font-size: 16pt; text-wrap-mode: wrap;"><span class="s2" style="font-weight: bold; color: rgb(0, 176, 240);"></span></p><hr/><p class="p3" style="font-family: Arial; font-size: 16pt; text-wrap-mode: wrap;"><span class="s2" style="font-weight: bold; color: rgb(0, 176, 240);">&gt;&gt; DFS要求 &lt;&lt;</span><br/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><br/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">根据RSS-247 Issue 4草稿版，IC的DFS测试需要满足以下要求：</p><p><img src="/upload_files/2025-03/1742463909108082.jpg" title="1742463909108082.jpg" alt="1742463909108082.jpg" width="600" height="605"/></p><p class="p1" style="text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">由上表可知，如果同时申请CE和IC认证并且支持5600-5650 MHz的话，建议使用CE的DFS测试报告覆盖IC的DFS测试报告，但前提是CE的测试结果要满足IC的DFS要求<span class="s5">。</span></p><p style="font-size: 12px; text-wrap-mode: wrap; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;;"><br/></p><p class="p9" style="font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><span class="s5">以上内容均是以目前公开的RSS-247 Issue 4草稿版为准的，如果后续的正式版有较大改动，我们会尽快研读并分享给大家。</span><span class="s1" style="color: red;">目前RSS-247 Issue 4草稿版还处于公开咨询阶段，截止至5月5日。过了截止日期之后，RSS-247 Issue 4将会发布正式版，届时就可以开始用新版进行认证申请了。</span></p><p class="p10" style="text-indent: 0.000694444in; text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;"><br/></p><p class="p10" style="text-indent: 0.000694444in; text-align: justify; font-family: Arial; font-size: 12pt; text-wrap-mode: wrap;">BTL现已具备IC Wi-Fi (Wi-Fi 2.4GHz / Wi-Fi 5GHz / Wi-Fi 5.9GHz / Wi-Fi 6E / Wi-Fi 7)的测试能量，欢迎广大厂商联系BTL团队，我们将竭诚为您服务！</p><p><br/></p></div>
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