{"id":503,"date":"2022-01-25T12:00:00","date_gmt":"2022-01-25T04:00:00","guid":{"rendered":"http:\/\/www.xzclass.com\/?p=503"},"modified":"2022-02-27T19:00:21","modified_gmt":"2022-02-27T11:00:21","slug":"%e7%be%8e%e5%9b%bd5g%e9%a3%8e%e6%b3%a2%ef%bc%8c%e5%88%b0%e5%ba%95%e6%98%af%e5%92%8b%e5%9b%9e%e4%ba%8b%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.xzclass.com\/?p=503","title":{"rendered":"\u7f8e\u56fd5G\u98ce\u6ce2\uff0c\u5230\u5e95\u662f\u548b\u56de\u4e8b\uff1f"},"content":{"rendered":"
\u8fd9\u6bb5\u65f6\u95f4\uff0c\u7f8e\u56fd\u4e24\u5927\u6743\u5a01\u673a\u6784\u2014\u2014\u8054\u90a6\u901a\u4fe1\u59d4\u5458\u4f1a\uff08FCC\uff09\u4e0e\u8054\u90a6\u822a\u7a7a\u7ba1\u7406\u5c40\uff08FAA\uff09\uff0c\u7206\u53d1\u4e86\u6fc0\u70c8\u7684\u77db\u76fe\u51b2\u7a81\uff0c\u5f15\u53d1\u884c\u4e1a\u5173\u6ce8\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u9996\u5148\u662f\u53bb\u5e74\u5e74\u5e95\uff0c2021\u5e7412\u67087\u65e5\uff0cFAA\u53d1\u5e03\u98de\u884c\u8b66\u793a\uff0c\u8ba4\u4e3aC\u6ce2\u6bb5\u76845G\u4fe1\u53f7\u5bf9\u98de\u673a\u7684\u96f7\u8fbe\u9ad8\u5ea6\u8ba1<\/strong>\u5b58\u5728\u91cd\u5927\u5e72\u6270\u98ce\u9669\u3002FAA\u8981\u6c42\uff0c\u76f4\u5347\u673a\u548c\u5ba2\u8fd0\u98de\u673a\u7684\u98de\u884c\u5458\u5728\u8fdb\u51655G\u4fe1\u53f7\u8986\u76d6\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0d\u5f97\u4f7f\u7528\u81ea\u52a8\u964d\u843d\u7cfb\u7edf\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
FAA\u901a\u544a\u53d1\u51fa\u540e\uff0c\u5f15\u8d77\u4e86FCC\u7684\u5f3a\u70c8\u4e0d\u6ee1\u3002\u516d\u4f4d\u524dFCC\u5927\u4f6c\uff0c\u8054\u540d\u53d1\u51fa\u90ae\u4ef6\uff0c\u8c34\u8d23FAA\u4e0d\u8bb2\u6b66\u5fb7\u3002\u5927\u4f6c\u4eec\u58f0\u79f0\uff0cFCC\u82b1\u4e86\u4e24\u5e74\u65f6\u95f4\uff0c\u8fdb\u884c\u4e86\u8be6\u7ec6\u7684\u6280\u672f\u5206\u6790\uff0c\u5df2\u7ecf\u5f97\u5230\u4e86\u201c5G\u5bf9\u98de\u884c\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u4e0d\u5b58\u5728\u5e72\u6270\u201d\u7684\u7ed3\u8bba\uff0c\u800cFAA\u5374\u5bf9\u6b64\u89c6\u800c\u4e0d\u89c1\uff0c\u5b9e\u5c5e\u65e0\u7406\u53d6\u95f9\u3002<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
\u4e24\u5927\u673a\u6784\u4e92\u603c\uff0c\u5012\u9709\u7684\u662f\u8fd0\u8425\u5546\u3002\u82b1\u4e86\u51e0\u767e\u4ebf\u7f8e\u5143\u62ff\u4e0b3.7GHz\u9891\u8c31\u7684AT&T\u548cVerizon\uff0c\u5728\u7f8e\u56fd\u4ea4\u901a\u90e8\u7684\u5f3a\u70c8\u8981\u6c42\u4e0b\uff0c\u5ef6\u8fdf\u4e865G\u7684\u5f00\u901a\uff0c\u7b49\u5f85\u8fdb\u4e00\u6b65\u7684\u7ed3\u8bba\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u7a76\u7adfFAA\u548cFCC\u8c01\u5bf9\u8c01\u9519\u5462\uff1f\u6211\u4eec\u5148\u6765\u770b\u770b2020\u5e7410\u6708\u4efd\u822a\u7a7a\u65e0\u7ebf\u6280\u672f\u59d4\u5458\u4f1a\uff08Radio Technical Commission for Aeronautics\uff0cRTCA\uff09\u53d1\u5e03\u7684\u4e00\u4efd\u62a5\u544a\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u62a5\u544a\u4e00\u5171231\u9875\uff0c\u505a\u4e86\u5404\u79cd\u573a\u666f\u7684\u8be6\u5c3d\u5206\u6790\u3002\u8fd9\u91cc\u7ed9\u5927\u5bb6\u7b80\u5355\u7684\u603b\u7ed3\u4e00\u4e0b\u62a5\u544a\u7684\u4e3b\u8981\u5185\u5bb9\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u98de\u673a\u5728\u98de\u884c\u4e2d\uff0c\u91c7\u7528\u591a\u79cd\u65b9\u5f0f\u8fdb\u884c\u9ad8\u5ea6\u6d4b\u91cf\uff0c\u7528\u4e8e\u4fdd\u8bc1\u7cfb\u7edf\u7684\u5197\u4f59\u5ea6\u3002<\/span><\/section>\n
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\u5176\u4e2d\uff0c\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\uff0c\u901a\u8fc7\u8ba1\u7b97\u4e00\u4e2a\u65e0\u7ebf\u7535\u4fe1\u53f7\u4ece\u5730\u9762\u53cd\u5c04\u56de\u6765\u7684\u65f6\u95f4\uff0c\u6765\u5224\u65ad\u9ad8\u5ea6\u3002\u5982\u4e0b\u56fe\u4e2d\u84dd\u8272\u865a\u7ebf\u6240\u793a\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
<\/span><\/section>\n
C band 5G\u4e0e\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u4f7f\u7528\u9891\u7387<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u96f7\u8fbe\u9ad8\u5ea6\u8ba1\uff0c\u4e00\u822c\u7528\u4e8e\u98de\u673a\u964d\u843d\u65f6\u7684\u9ad8\u5ea6\u6d4b\u91cf\uff0c\u4ee5\u53ca\u8b66\u544a\u98de\u884c\u5458\u9ad8\u5ea6\u8fc7\u4f4e\u6216\u8005\u524d\u65b9\u6709\u4e0a\u5347\u5730\u5f62\u3002\u6839\u636eITU\u65e0\u7ebf\u7535\u89c4\u5219\u7684\u9891\u8c31\u5206\u914d\uff0c\u8fd9\u4e2a\u96f7\u8fbe\u9ad8\u5ea6\u8ba1\u7684\u5de5\u4f5c\u9891\u7387\u4e3a4.2~4.4 GHz\u3002<\/span><\/section>\n
<\/section>\n
3GPP n77\u9891\u6bb5\u7684\u4e0a\u9650\u662f4.2GHz\uff0c\u4f46\u5728\u5404\u56fd\u7684\u5b9e\u9645\u89c4\u5212\u4e2d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u4e0d\u5bf9\u8fd9\u4e00\u7cfb\u7edf\u4ea7\u751f\u5e72\u6270\uff0cn77\u6700\u591a\u53ea\u7528\u52304.1GHz \uff08100 MHz\u4f5c\u4e3a\u4fdd\u62a4\u5e26\uff09\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
2020\u5e74\uff0cFCC\u62cd\u5356\u4e863.7~3.98GHz\u9891\u8c31\uff0c\u7528\u4e8e5G\u7684\u4f7f\u7528\u3002\u5f53\u65f6\uff0c\u603b\u8ba1\u62cd\u5356\u4ef7\u683c\u9ad8\u8fbe809\u4ebf\u7f8e\u5143\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u62cd\u5356\u524d\uff0cFCC\u9080\u8bf7\u4e86\u5404\u4e2a\u76f8\u5173\u884c\u4e1a\u3001\u516c\u53f8\u63d0\u51fa\u610f\u89c1\u3002\u5f53\u65f6\uff0c\u822a\u7a7a\u4e1a\u5e76\u6ca1\u6709\u5bf9\u8fd9\u4e2a\u9891\u8c31\u62cd\u5356\u63d0\u51fa\u5f02\u8bae\u3002\u7136\u800c\uff0c\u5728\u62cd\u5356\u7ed3\u675f\u540e\u4e0d\u4e45\uff0c\u822a\u7a7a\u4e1a\u5f00\u59cb\u53d1\u58f0\uff0c\u8bf45G\u7684\u9891\u7387\u8ddd\u79bb\u98de\u884c\u9ad8\u5ea6\u96f7\u8fbe\u4f7f\u7528\u7684\u9891\u7387\u5f88\u8fd1\uff0c\u62c5\u5fc3\u672a\u67655G\u5bf9\u5176\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u7cfb\u7edf\u7684\u5c04\u9891\u5e72\u6270\u3002\uff08\u5178\u578b\u7684\u9a6c\u540e\u70ae\uff09<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u5728RTCA\u7684\u8fd9\u4efd\u62a5\u544a\u4e2d\uff0c\u5206\u6790\u4e86\u4ece\u624b\u673a\u5230\u57fa\u7ad9\uff0c\u4ece\u673a\u8231\u5185\u5230\u5730\u9762\uff0c\u4ece\u76f4\u5347\u673a\u5230\u5ba2\u8fd0\u98de\u673a\u7b49\u591a\u79cd5G\u4fe1\u53f7\u5b58\u5728\u573a\u666f\u4e0b\u5e72\u6270\u7684\u60c5\u5f62\u3002\u6700\u7ec8\u5f97\u51fa\u7684\u7ed3\u8bba\uff0c\u662f\u4ece3.7GHz\u5f00\u59cb\u76845G\u4fe1\u53f7\u4f1a\u5bf9\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u4ea7\u751f\u5e72\u6270\u3002\u5176\u4e2d\u6700\u4e25\u91cd\u7684\uff0c\u662f5G\u57fa\u7ad9\u5bf9\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u7684\u5e72\u6270\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
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\u5404\u4e2a\u56fd\u5bb6\u548c\u5730\u533aC band 5G\u9891\u8c31\u5206\u914d<\/span><\/section>\n
<\/section>\n
\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u7684\u5929\u7ebf\u5b89\u88c5\u5728\u98de\u673a\u5e95\u90e8\uff0c\u5929\u7ebf\u7684\u89c6\u8f74 (boresight) \u6307\u5411\u5730\u9762\u3002\u5728\u8fd9\u79cd\u60c5\u5f62\u4e0b\uff0c\u5373\u4f7f\u57fa\u7ad9\u5929\u7ebf\u91c7\u7528\u4e0b\u503e\u89d2\u7684\u8f90\u5c04\u9762\uff0c\u5728\u5929\u7ebf\u7684\u5782\u76f4\u65b9\u5411\u56fe\u4e0a\uff0c\u4ecd\u4f1a\u6709\u76f8\u5f53\u4e00\u90e8\u5206\u529f\u80fd\u6307\u5411\u5929\u7a7a\u3002\u56e0\u6b64\uff0c\u96f7\u8fbe\u4f1a\u63a5\u6536\u52305G\u5929\u7ebf\u65c1\u74e3\u8f90\u5c04\u5e26\u6765\u7684\u5e72\u6270\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/span><\/section>\n
\u00a0<\/span><\/section>\n
<\/span><\/section>\n
\u98de\u673a\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u4e0e5G\u57fa\u7ad9\u5929\u7ebf\u89c6\u8f74<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u5982\u679c\u57fa\u7ad9\u9ad8\u5ea6\u66f4\u9ad8\uff0c\u98de\u673a\u5373\u5c06\u964d\u843d\u7684\u60c5\u5f62\u4e0b\uff0c\u96f7\u8fbe\u751a\u81f3\u80fd\u63a5\u6536\u5230\u57fa\u7ad9\u5929\u7ebf\u4e3b\u74e3\u8f90\u5c04\u7684\u529f\u7387\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u4e0b\u56fe\u662f\u5bf9\u4e0d\u540c\u98de\u884c\u9ad8\u5ea6\u53ca\u57fa\u7ad9\u7684\u4eff\u771f\u626b\u63cf\u66f2\u7ebf\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u6700\u574f\u60c5\u51b5\u51fa\u73b0\u5728200\u82f1\u5c3a\uff0860\u7c73\uff09\u5de6\u53f3\u7684\u65f6\u5019\u3002<\/span><\/section>\n
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<\/section>\n
\u5e72\u6270\u6e90Massive MIMO 5G\u57fa\u7ad9\u5929\u7ebf\u8f90\u5c04\u65b9\u5411\u56fe<\/span><\/section>\n
\uff08\u6a2a\u5750\u6807\u662f\u6c34\u5e73\u89d2\u5ea6\u626b\u63cf\uff09
\n<\/span><\/section>\n
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\u652f\u6301Massive MIMO\u300116×16\u5929\u7ebf\u9635\u5217\u76845G\u5927\u529f\u7387\u5b8f\u7ad9\uff0c\u5177\u5907\u6700\u5927\u7684\u5e72\u6270\u98ce\u9669\u3002<\/span><\/section>\n
<\/section>\n
\u5728\u6700\u574f\u60c5\u51b5\u4e0b\uff0c5G\u5e26\u5185\u4fe1\u53f7\u8d85\u8fc7\u4e86\u96f7\u8fbe\u80fd\u5bb9\u5fcd\u7684\u5e72\u6270\u95e8\u965047dB\u3002\u800c\u5e26\u5916\u6742\u6563\uff0c\u8d85\u8fc7\u4e86\u5e72\u6270\u95e8\u965027dB\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
<\/section>\n
5G\u57fa\u7ad9\u5728\u98de\u673a\u4e0d\u540c\u98de\u884c\u9ad8\u5ea6\u4e0b\u7684\u529f\u7387\u8c31\u5bc6\u5ea6\u4ee5\u53ca\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u7684\u6297\u5e72\u6270\u95e8\u9650<\/span><\/section>\n
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\u5982\u679c\u8bf45G\u7684\u5e26\u5916\u6742\u6563\u8fd8\u80fd\u901a\u8fc7\u6ee4\u6ce2\u5668\u6291\u5236\u6765\u6539\u5584\uff0c\u90a3\u4e48\u8ba9\u5e26\u5185\u4fe1\u53f7\u964d\u4f4e47dB\uff0c\u5c31\u57fa\u672c\u7b49\u4e8e\u5173\u95ed\u57fa\u7ad9\u4e86\u3002\u8fd9\u4e00\u70b9\uff0c\u662f\u8fd0\u8425\u5546\u548cFCC\u4e0d\u53ef\u63a5\u53d7\u7684\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u4e0d\u4e45\u540e\uff0c\u5728FCC\u7684\u7275\u5934\u4e0b\uff0c\u901a\u4fe1\u884c\u4e1a\u505a\u4e86\u76f8\u5e94\u7684\u7814\u7a76\uff0c\u6279\u5224\u4e86RTCA\u8fd9\u4efd\u62a5\u544a\u7684\u4e0d\u5408\u7406\u6027\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u7b2c\u4e00\uff0cRTCA\u5728\u5404\u4e2a\u73af\u8282\u7684\u5206\u6790\u4e2d\uff0c\u90fd\u52a0\u5165\u989d\u5916\u7684\u201c\u8bbe\u8ba1\u88d5\u91cf\u201d\u3002\u751a\u81f3\u5728\u201c\u8bbe\u8ba1\u88d5\u91cf\u201d\u4e0a\uff0c\u518d\u989d\u5916\u6dfb\u52a0\u201c\u5b89\u5168\u88d5\u91cf\u201d\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u540c\u65f6\uff0c\u5bf95G\u57fa\u7ad9\u8f90\u5c04\u548c\u98de\u673a\u8d77\u964d\u7684\u60c5\u51b5\uff0cRTCA\u4e5f\u91c7\u7528\u4e86\u5404\u79cd\u6700\u574f\u60c5\u51b5\u5047\u8bbe\u7684\u7ec4\u5408\uff0c\u5e76\u4e0d\u7b26\u5408\u5b9e\u9645\u53ef\u80fd\u51fa\u73b0\u7684\u60c5\u51b5\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u6700\u540e\uff0c\u5728\u6d4b\u8bd5\u65f6\uff0cRTCA\u7684\u62a5\u544a\u53c8\u5f15\u5165\u4e86\u6bd4FAA\u7684\u6700\u4f4e\u6027\u80fd\u6807\u51c6\u66f4\u4e3a\u4e25\u82db\u7684\u6307\u6807\uff0c\u5f88\u4e0d\u5408\u7406\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u5728FCC\u4e4b\u540e\uff0cCTIA\u30015G Americans\u7b49\u7ec4\u7ec7\uff0c\u4e5f\u90fd\u53d1\u5e03\u4e86\u76f8\u5e94\u7684\u7814\u7a76\u62a5\u544a\uff0c\u9a73\u65a5RTCA\u62a5\u544a\u4e2d\u7684\u4e0d\u79d1\u5b66\u3001\u4e0d\u4e25\u8c28\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
\u4e8b\u60c5\u5f53\u65f6\u544a\u4e00\u6bb5\u843d\uff0c\u4e24\u5e74\u6765\uff0c\u5728\u5176\u5b83\u5df2\u7ecf\u5546\u75285G\u7684\u56fd\u5bb6\u4e2d\uff0c\u4e5f\u6ca1\u6709\u542c\u8bf4\u8fc7\u4efb\u4f55\u4e00\u8d77\u5e72\u6270\u98de\u673a\u7684\u4e8b\u4ef6\u53d1\u751f\u3002\u4e8e\u662f\uff0cAT&T\u548cVerizon\u4e24\u5927\u8fd0\u8425\u5546\uff0c\u65a5\u5de8\u8d44\u8d2d\u4e70\u4e86\u9891\u8c31\uff0c\u5174\u9ad8\u91c7\u70c8\u5730\u51c6\u5907\u63a8\u51fa3.7GHz\u76845G\u670d\u52a1\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\n\u5176\u5b9e\uff0c\u8fd9\u5c31\u8981\u201c\u5f52\u529f\u201d\u4e8e\u9ad8\u5ea6\u8ba1\u96f7\u8fbe\u7684\u5c04\u9891\u8bbe\u8ba1\u4e86\u3002<\/span><\/section>\n
\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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<\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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<\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u00a0<\/span><\/section>\n
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\u56fd\u5185\u76845G\u9891\u6bb5\u5206\u914d<\/span><\/section>\n
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\u672c\u6587\u4f5c\u8005\u5510\u6b23\u535a\u58eb\uff0c\u76ee\u524d\u62c5\u4efb<\/span>Spectru<\/span>m Lab\u6280\u672f\u603b<\/span>\u76d1\u3002<\/span><\/section>\n
<\/section>\n
\u53c2\u8003\u6587\u732e<\/span><\/strong><\/section>\n
[1] RTCA Paper,Assessment of C-Band Mobile Telecommunications Interference Impact on Low Range Radar Altimeter Operations.<\/span><\/section>\n
[2] CTIA, Altimeter Performance and the RTCA study.<\/span><\/section>\n
[3] 5G Americas White Paper, Mid-band spectrum & the coexistence with radio altimeter.<\/span><\/section>\n
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\uff08\u5168\u6587\u5b8c\uff09<\/span><\/section>\n
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