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href=\"http:\/\/www.tianwang.com\/wp-content\/uploads\/2020\/06\/tianwang.com_2020-06-24_01-59-44.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-585\" src=\"http:\/\/www.tianwang.com\/wp-content\/uploads\/2020\/06\/tianwang.com_2020-06-24_01-59-44-1024x622.jpg\"  width=\"1024\" height=\"622\" title=\"2G\u9000\u7f51\u6b65\u51655G\u65f6\u4ee3\uff0cNB-IoT\u7f51\u7edc\u9f0e\u529b\u62c5\u5f53\u63d2\u56fe1\" alt=\"2G\u9000\u7f51\u6b65\u51655G\u65f6\u4ee3\uff0cNB-IoT\u7f51\u7edc\u9f0e\u529b\u62c5\u5f53\u63d2\u56fe1\" \/><\/a><\/p>\n<p>\u4ece5G\u7269\u8054\u7f51\u4ea7\u4e1a\u8054\u76df\u7684\u6570\u636e\u5206\u6790\u53ef\u4ee5\u770b\u51fa\uff0c2G\u7ec8\u7aef\u5728\u60ef\u6027\u7684\u9a71\u52a8\u4e0b\uff0c\u5c06\u7ee7\u7eed\u4fdd\u6301\u4e00\u5b9a\u7684\u5e02\u573a\u89c4\u6a21\u3002\u4ea7\u4e1a\u8f6c\u79fb\u8d8b\u52bf\u660e\u663e\uff0c\u6b27\u6d32\u3001\u5317\u7f8e\u3001\u4e1c\u4e9a\u7684\u5e02\u573a\u51fa\u73b0\u65ad\u5d16\u5f0f\u4e0b\u6ed1\uff0c\u4f46\u5370\u5ea6\u3001\u975e\u6d32\u3001\u5357\u7f8e\u6d32\u7b49\u5730\u76842G\u9700\u6c42\u6709\u6240\u589e\u52a0\u3002<\/p>\n<p>\u603b\u4f53\u6765\u770b\uff0c2019\u5e74\u5c06\u662f\u5386\u53f2\u7684\u62d0\u70b9\uff0c\u968f\u7740\u65b0\u6280\u672f\u7684\u5347\u7ea7\u6362\u4ee3\uff0c\u8fd0\u8425\u5546\u6709\u4e86NB-IoT\u7684\u9009\u62e9\uff0c\u5c06\u9010\u6b65\u5173\u95ed2G\u7f51\u7edc\uff0c\u4f20\u5bfc\u6548\u5e94\u5c31\u5bfc\u81f42G\u7f51\u7edc\u7ec8\u7aef\u6570\u91cf\u5feb\u901f\u4e0b\u6ed1\u3002<\/p>\n<p>\u6709\u4e9b\u4eba\u575a\u79f0\uff1a\u8bed\u97f3\u4e1a\u52a1\u662f\u7528\u6237\u6700\u57fa\u672c\u7684\u901a\u4fe1\u9700\u6c42\u3002<\/p>\n<p>\u8fd9\u53e5\u8bdd\u6ca1\u9519\uff0c\u4f46\u7528\u6237\u4e3a\u4e86\u5b9e\u73b0\u8bed\u97f3\u901a\u8bdd\uff0c\u4e0d\u662f\u975e\u8981\u9009\u62e9\u8fd0\u8425\u5546\u7f51\u7edc\uff0c\u6bd4\u5982\u53ef\u4ee5\u9009\u62e9\u5fae\u4fe1\u901a\u8bdd\u3002\u5f53\u7528\u6237\u6709\u4e86\u66f4\u591a\u7684\u9009\u62e9\u6743\u540e\uff0c\u7b26\u5408\u7528\u6237\u8bc9\u6c42\u7684\u7f51\u7edc\u624d\u662f\u672a\u6765\u7684\u53d1\u5c55\u65b9\u5411\u3002<\/p>\n<p>\u73b0\u5728\uff0c\u5982\u82e5\u7ee7\u7eed\u575a\u63012G\u7f51\u7edc\u662f\u8986\u76d6\u57fa\u7840\u7684\u4e3b\u56e0\uff0c\u5c31\u662f\u4e3a\u4e86\u8986\u76d6\u800c\u8986\u76d6\u7684\u81ea\u6211\u6b3a\u9a97\u903b\u8f91\u3002<\/p>\n<p><strong>2G\u9000\u7f51\u5230\u5e95\u8be5\u600e\u4e48\u9000\uff1f<\/strong><strong>\u00a0<\/strong><\/p>\n<p>\u8fd0\u8425\u5546\u51fa\u73b0\u4e86\u65e0\u540d\u7684\u7126\u8651\uff1a<\/p>\n<p>\u5982\u4f55\u5236\u5b9a\u9000\u7f51\u7b56\u7565\uff0c\u65e2\u90002G\u7f51\u7edc\uff0c\u53c8\u4e0d\u5f71\u54cd\u7528\u6237\uff1f<\/p>\n<p>\u5982\u679c\u7b56\u7565\u4e0d\u5f53\uff0c\u5f88\u53ef\u80fd\u4f1a\u5f71\u54cd\u7528\u6237\u4f53\u9a8c\uff0c\u4ece\u800c\u5f71\u54cd\u7528\u6237\u6570\u91cf\uff0c\u5f71\u54cd\u81ea\u8eab\u7684\u5e02\u573a\u7ade\u4e89\u3002<\/p>\n<p>\u57fa\u4e8e4G\u7f51\u7edc\u7684VoLTE\u53d6\u4ee32G\u7684\u8bed\u97f3\u901a\u8bdd\uff0cNB-IoT\/eMTC\u53d6\u4ee32G\u7684\u7269\u8054\u7f51\u529f\u80fd\u3002<\/p>\n<p>\u6839\u636e2G\/3G\/4G\u7684\u6280\u672f\u6f14\u8fdb\u8def\u7ebf\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u51fa\uff1a<\/p>\n<p>2G\u7f51\u7edc\u662f\u57fa\u4e8e\u4fe1\u4ee4\u7684\u7535\u8def\u4ea4\u6362\u3002<\/p>\n<p>3G\u7f51\u7edc\u7684\u8bed\u97f3\u4ea4\u6362\u67b6\u6784\u4ecd\u7136\u627f\u88ad2G\u7cfb\u7edf\u7684\u7535\u8def\u4ea4\u6362\uff0c\u4f46\u662f\u6570\u636e\u901a\u4fe1\u91c7\u7528IP\u67b6\u6784\uff0c\u603b\u4f53\u6765\u8bb2\u4e0d\u662f\u7eafIP\u7684\u65b9\u5f0f\uff0c\u5c5e\u4e8e\u4e00\u79cd\u8fc7\u6e21\u9636\u6bb5\u3002<\/p>\n<p>\u800c\u5230\u4e864G\u65f6\u4ee3\uff0c4G\u7f51\u7edc\u57fa\u4e8e\u7eafIP\u7684\u65b9\u5f0f\uff0c\u7f51\u7edc\u67b6\u6784\u66f4\u52a0\u6241\u5e73\u5316\u7b80\u5355\u5316\uff0c\u51cf\u5c11\u4e86\u7f51\u7edc\u8282\u70b9\u548c\u7cfb\u7edf\u590d\u6742\u5ea6\uff0c\u4ece\u800c\u51cf\u5c0f\u4e86\u7cfb\u7edf\u65f6\u5ef6\uff0c\u4e5f\u964d\u4f4e\u4e86\u7f51\u7edc\u90e8\u7f72\u548c\u7ef4\u62a4\u6210\u672c\u3002<\/p>\n<p>NB-IoT\u662f\u5728LTE\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u7b80\u5316\u800c\u6765\uff0c\u65e8\u5728\u63d0\u5347\u8fd0\u8425\u5546\u7684\u9891\u8c31\u5229\u7528\u7387\u3002\u5e26\u7740LTE\u7684\u57fa\u56e0\uff0c\u57fa\u4e8e\u7eafIP\u7684\u65b9\u5f0f\uff0c\u5b9e\u73b0\u6211\u4eec\u671f\u76fc\u7684\u5e7f\u8986\u76d6\u3001\u5927\u8fde\u63a5\u3001\u4f4e\u529f\u8017\u3001\u4f4e\u6210\u672c\u3002<\/p>\n<p>NB-IoT\u7684\u6700\u521d\u76ee\u7684\u5c31\u662f\u66ff\u6362GPRS\u3002<\/p>\n<p><strong>2G\u7f51\u7edc\u7528\u6237\u7684\u75db\uff0c\u5176\u5b9e\u4f60\u4e0d\u61c2\uff01<\/strong><\/p>\n<p>\u5171\u4eab\u5355\u8f66\u7684\u5386\u7ecf\u4e862017\u5e74\u7684\u8fc7\u5c71\u8f66\u9876\u5cf0\uff0c\u7ed92G\u7f51\u7edc\u8fd0\u8425\u5546\u4e00\u4e2a\u771f\u5b9e\u7684\u201c\u73a9\u7b11\u201d\u3002\u82e5\u60f3\u8fd0\u8425\u597d\u5171\u4eab\u5355\u8f66\uff0c\u5c31\u5fc5\u987b\u91c7\u7528\u7f51\u7edc\u8986\u76d6\u597d\u7684\u8fd0\u8425\u5546\u3002\u5b9e\u9645\u7ed3\u679c\u662f2G\u7f51\u7edc\u4e2d\u56fd\u79fb\u52a8\u5f97\u5206\u6700\u9ad8\uff0c\u4e2d\u56fd\u8054\u901a\u548c\u4e2d\u56fd\u7535\u4fe1\u66fe\u7ecf\u8fd8\u60f3\u6323\u624e\u4e00\u4e0b\uff0c\u6700\u540e\u4e5f\u653e\u5f03\u4e86\u5e7b\u60f3\u3002\u8fd9\u7ed9\u4e2d\u56fd\u79fb\u52a8\u5185\u90e8\u633a2G\u7684\u4eba\u58eb\u4e00\u80a1\u5f3a\u5fc3\u9488\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u73b0\u5b9e\u5f88\u6b8b\u9177\uff0c\u5171\u4eab\u5355\u8f66\u672c\u8eab\u547d\u8fd0\u591a\u52ab\uff0c\u5730\u94c1\u51fa\u7ad9\u53e3\u7684\u5355\u8f66\u6570\u91cf\u5bf9\u57fa\u7ad9\u662f\u8d85\u5f3a\u7684\u8d1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POS\u673a\uff0c\u6bd4\u5982\u96f6\u661f\u6536\u5355\u3001\u5237\u5361\u5957\u73b0\u7b49\u3002<\/p>\n<p>\u4e00\u4e9b2G 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