{"id":127,"date":"2018-04-16T14:21:52","date_gmt":"2018-04-16T06:21:52","guid":{"rendered":"http:\/\/www.xzclass.com\/?p=127"},"modified":"2022-03-01T15:51:58","modified_gmt":"2022-03-01T07:51:58","slug":"%e5%85%b3%e4%ba%8e2g%e9%80%80%e7%bd%91%ef%bc%8c%e8%bf%99%e7%af%87%e5%8f%af%e4%bb%a5%e8%af%b4%e6%98%af%e5%be%88%e5%85%a8%e9%9d%a2%e4%ba%86","status":"publish","type":"post","link":"http:\/\/www.xzclass.com\/?p=127","title":{"rendered":"\u5173\u4e8e2G\u9000\u7f51\uff0c\u8fd9\u7bc7\u53ef\u4ee5\u8bf4\u662f\u5f88\u5168\u9762\u4e86"},"content":{"rendered":"
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2G\u9000\u7f51\uff0c\u5176\u5b9e\u5e76\u4e0d\u662f\u4e00\u4ef6\u65b0\u9c9c\u4e8b\u3002<\/span><\/p>\n


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2016\u5e744\u6708\uff0c\u7f8e\u56fd\u8fd0\u8425\u5546AT&T\u5ba3\u5e03\u5f53\u5e74\u5e74\u5e95\u9000\u7f512G\uff0c\u5f53\u65f6\u5df2\u7ecf\u7b97\u662f\u7ed9\u5927\u5bb6\u6253\u4e86\u9884\u9632\u9488\u3002<\/span><\/p>\n

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\u8fd9\u4e9b\u5e74\uff0c\u884c\u4e1a\u91cc\u4e00\u76f4\u5728\u89c2\u671b\uff0c\u5728\u7b49\u5f85\u56fd\u5185\u7684\u6d88\u606f\u3002\u5927\u5bb6\u7684\u5173\u6ce8\u70b9\uff0c\u4e0d\u662f\u201c\u9000\u4e0d\u9000\uff1f<\/span>\u201d\uff0c\u800c\u662f\u201c\u8c01\u5148\u9000\uff1f\u600e\u4e48\u9000\uff1f<\/span>\u201d<\/span><\/p>\n

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\u73b0\u5728\u597d\u4e86\uff0c\u6d88\u606f\u51fa\u6765\u4e86\u2014\u2014\u56fd\u5185\u9000\u7f51\u7684\u7b2c\u4e00\u67aa\uff0c\u7531\u8054\u901a\u7387\u5148\u6253\u54cd\u3002<\/span><\/p>\n


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\u5173\u4e8e\u8fd9\u4e2a\u4e8b\u60c5\uff0c\u8bf7\u5141\u8bb8\u6211\u4ece\u5934\u5f00\u59cb\u8bf4\u8d77\u5427\u3002<\/span><\/p>\n


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\u4e0a\u4e16\u7eaa90\u5e74\u4ee3\u672b\uff0c\u6b27\u6d32\u641e\u51fa\u4e86GSM\uff0c\u7f8e\u56fd\u641e\u51fa\u4e86CDMA\uff0c\u8fd9\u4e24\u4e2a\u6280\u672f\u6807\u51c6\u6210\u4e3a2G\u7684\u4ee3\u8868\u3002\u4e2d\u56fd\u5462\uff0c\u5904\u4e8e\u6539\u9769\u5f00\u653e\u540e\u7684\u8d77\u6b65\u9636\u6bb5\u3002\u7ecf\u8fc7\u6743\u8861\u6bd4\u8f83\u4e4b\u540e\uff0c\u6211\u4eec\u9009\u62e9\u4e86\u5f53\u65f6\u66f4\u4e3b\u6d41\u3001\u66f4\u6210\u719f\u7684GSM\uff0c\u4f5c\u4e3a\u81ea\u5df1\u7684\u5efa\u7f51\u65b9\u5411\u3002<\/span><\/p>\n


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1992\u5e74\uff0c\u539f\u90ae\u7535\u90e8\u6279\u51c6\u5efa\u8bbe\u4e86\u6d59\u6c5f\u5609\u5174\u5730\u533aGSM\u8bd5\u9a8c\u7f51\u3002<\/span><\/p>\n


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1993\u5e749\u670819\u65e5\uff0c\u6211\u56fd\u7b2c\u4e00\u4e2a\u6570\u5b57\u79fb\u52a8\u7535\u8bdd\u901a\u4fe1\u7f51\u5728\u6d59\u6c5f\u7701\u5609\u5174\u5e02\u5f00\u901a\u3002<\/span><\/p>\n


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\u4ece\u6b64\uff0c2G\u5728\u4e2d\u56fd\u5927\u5730\u751f\u6839\u53d1\u82bd\u3002<\/span><\/p>\n


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1994\u5e74\uff0c\u539f\u90ae\u7535\u90e8\u90e8\u957f<\/span>\u5434\u57fa\u4f20\u6b63\u5728\u62e8\u6253GSM\u7535\u8bdd\u3002<\/span><\/span><\/p>\n

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2000\u5e74\uff0c\u4e2d\u56fd\u79fb\u52a8\u6210\u7acb\u3002\u5b83\u6240\u8fd0\u8425\u7684\u7f51\u7edc\uff0c\u5c31\u662f\u4ece\u8001\u7535\u4fe1\u90a3\u91cc\u7ee7\u627f\u7684GSM\u5bb6\u5e95\u3002\u800c\u8054\u901a\uff0c\u4ece1994\u5e74\u6210\u7acb\u4e4b\u65e5\u8d77\uff0c\u7528\u7684\u5c31\u662fGSM\u3002<\/span><\/p>\n


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\u81ea\u4ece\u6700\u5f00\u59cb\u9009\u62e9\u4e86GSM\u4e4b\u540e\uff0c\u4e2d\u56fd\u6ca1\u6709\u5efa\u8bbeCDMA\u7f51\u7edc\u7684\u6253\u7b97\u3002\u4f46\u662f\uff0c\u4e16\u4e8b\u96be\u6599\uff0c\u4e2d\u56fd\u52a0\u5165\u4e16\u8d38\u7ec4\u7ec7\u8c08\u5224\u7684\u65f6\u5019\uff0c\u7f8e\u56fd\u4eba\u786c\u662f\u628aCDMA\u7f51\u7edc\u4f5c\u4e3a\u4ea4\u6362\u6761\u4ef6\uff0c\u8981\u6c42\u4e2d\u56fd\u5efa\u7f51\u3002<\/span><\/p>\n


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\u6ca1\u529e\u6cd5\uff0c\u5efa\u5c31\u5efa\u5457\u3002\u4e8e\u662f\uff0c\u8fd9\u4e2a\u4efb\u52a1\u6254\u7ed9\u4e86\u8054\u901a\u3002\u5c31\u8fd9\u6837\uff0c\u8054\u901a\u9664\u4e86\u5df2\u6709\u7684GSM\u7f51\u7edc\u4e4b\u5916\uff0c\u53c8\u5efa\u8bbe\u4e86CDMA\u7f51\u7edc\uff082002\u5e741\u6708\u5f00\u901a\uff09\u3002<\/span><\/p>\n

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\u4f60\u95ee\u6211\u4e2d\u56fd\u7535\u4fe1\u5728\u54ea\uff1f\u7535\u4fe1\u90a3\u65f6\u5019\u88ab\u62c6\u5f97\u4e03\u96f6\u516b\u843d\uff0c\u6ca1\u6709\u79fb\u52a8\u901a\u4fe1\u724c\u7167\uff0c\u53ea\u80fd\u6363\u9f13\u4f20\u7edf\u7684\u56fa\u5b9a\u7535\u8bdd\u4e4b\u7c7b\u7684\u4e1a\u52a1\u3002<\/span><\/p>\n

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\u540e\u6765\uff0c\u5230\u4e862008\u5e74\uff0c\u4e2d\u56fd\u7535\u4fe1\u8fd0\u8425\u5546\u4eec\u7ecf\u8fc7N\u8f6e\u62c6\u5206\u91cd\u7ec4\uff0c\u8fdb\u5165\u4e00\u4e2a\u65b0\u7684\u9636\u6bb5\u3002<\/span><\/p>\n


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\u82e6\u903c\u7684\u4e2d\u56fd\u7535\u4fe1\u62ff\u5230\u4e86\u68a6\u5bd0\u4ee5\u6c42\u7684\u79fb\u52a8\u901a\u4fe1\u5165\u573a\u5238\u3002\u5f53\u7136\uff0c\u5165\u573a\u5238\u662f\u8981\u82b1\u94b1\u4e70\u7684\u2014\u2014\u4f5c\u4e3a\u63a5\u76d8\u4fa0\uff0c\u4e2d\u56fd\u7535\u4fe1\u82b1\u4e861100\u4ebf\u4eba\u6c11\u5e01\uff0c\u4ece\u8054\u901a\u624b\u91cc\u4e70\u6765\u4e86CDMA\u3002<\/span><\/p>\n

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\u4e8e\u662f\uff0c\u53d8\u6210\u4e86\u79fb\u52a8\u7ecf\u8425GSM\uff0c\u8054\u901a\u7ecf\u8425GSM\uff0c\u7535\u4fe1\u7ecf\u8425CDMA\u3002<\/span><\/p>\n

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\u4e0e\u6b64\u540c\u65f6\uff0c3G\u724c\u7167\u6b63\u5f0f\u53d1\u653e\uff0c\u79fb\u52a8\u625b\u8d77\u4e86TD-SCDMA\u8fd9\u9762\u201c\u56fd\u4ea7\u6807\u51c6\u201d\u7684\u5927\u65d7\u3002<\/span><\/p>\n


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\u7535\u4fe1\uff0c\u56e0\u4e3a\u62e5\u6709\u7684\u662fCDMA\u7f51\u7edc\uff0c\u6240\u4ee5\u5230\u4e863G\u7ee7\u7eed\u641eCDMA\uff0c\u53d8\u6210\u4e86CDMA2000\u3002<\/span>
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\u6700\u5f00\u5fc3\u7684\u662f\u8054\u901a\uff0c\u62ff\u5230\u4e86\u5f53\u65f6\u4e16\u754c\u4e0a\u6700\u597d\u7684\u901a\u4fe1\u6280\u672f\u6807\u51c6\u2014\u2014GSM\u7684\u6b63\u7edf\u7ee7\u627f\u8005\uff0cWCDMA\u3002<\/span><\/p>\n

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\u518d\u540e\u6765\uff0c2013\u5e74\uff0c4G\u724c\u7167\u53d1\u653e\uff0c\u5927\u5bb6\u90fd\u77e5\u9053\u7684\uff0c\u79fb\u52a8\u71ac\u51fa\u4e86\u5934\uff0c\u6295\u5165\u4e86TD-LTE\u7684\u6000\u62b1\u3002\u8054\u901a\u548c\u7535\u4fe1\u5462\uff0c\u641e\u8d77\u4e86FDD-LTE\u3002<\/span>
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\u8fd9\u4e5f\u6700\u7ec8\u5f62\u6210\u4e86\u73b0\u5728\u7684\u683c\u5c40\uff1a<\/span><\/p>\n

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\u4ee5\u4e0a\uff0c\u5c31\u662f\u4e2d\u56fd\u79fb\u52a8\u901a\u4fe1\u5236\u5f0f\u7684\u53d1\u5c55\u7b80\u53f2\uff0c\u6743\u5f53\u662f\u6545\u4e8b\u80cc\u666f\u5427\u3002<\/span><\/p>\n

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\u5176\u5b9e\uff0c\u73b0\u5728\u8fd9\u79cd\u683c\u5c40\u4e5f\u6ca1\u4ec0\u4e48\u4e0d\u597d\u3002\u5927\u5bb6\u90fd\u7528\u5f97\u633a\u5f00\u5fc3\uff0c\u7535\u8bdd\u53ef\u4ee5\u6253\uff0c\u77ed\u4fe1\u53ef\u4ee5\u53d1\uff0c\u4e0a\u7f51\u7684\u8bdd\uff0c4G\u901f\u5ea6\u4e5f\u8fd8\u884c\uff0c\u770b\u89c6\u9891\uff0c\u5237\u6e38\u620f\uff0c\u57fa\u672c\u4e0a\u90fd\u6ca1\u5565\u95ee\u9898\u3002<\/span>
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\u65e2\u7136\u5982\u6b64\uff0c\u4e3a\u4ec0\u4e48\u8981\u591a\u6b64\u4e00\u4e3e\uff0c\u63d0\u51fa\u5e72\u63892G\u5462\uff1f<\/span><\/strong><\/p>\n

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\u6390\u6307\u4e00\u7b97\uff0c2G\u4efb\u52b3\u4efb\u6028\u4e3a\u5927\u5bb6\u670d\u52a1\uff0c\u5df2\u7ecf\u670920\u591a\u4e2a\u5e74\u5934\u4e86\uff0c\u6bd4\u6709\u4e9b\u8bfb\u8005\u7684\u5e74\u9f84\u8fd8\u5927\u3002\u3002\u3002<\/span><\/p>\n

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\u6280\u672f\u8001\uff0c\u4ee3\u8868\u5b83\u6210\u719f\u3002\u5982\u679c\u8fd8\u80fd\u53d1\u6325\u4f5c\u7528\uff0c\u80fd\u8d5a\u94b1\uff0c\u90a3\u7ee7\u7eed\u7528\u4e0b\u53bb\u65e0\u53ef\u539a\u975e\u3002\u4f46\u662f\uff0c2G\u5df2\u7ecf\u6301\u7eed\u5f88\u591a\u5e74\u5904\u4e8e\u8d54\u94b1\u72b6\u6001\u4e86<\/strong>\u3002<\/span><\/p>\n


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\u73b0\u5728\u662f4G\u65f6\u4ee3\uff0c\u5927\u90e8\u5206\u4eba\u90fd\u662f\u75284G\u7f51\u7edc\u3002\u8fd8\u5728\u4f7f\u75282G\u7684\u7528\u6237\uff0c\u5176\u5b9e\u5e76\u4e0d\u591a\u3002<\/span><\/p>\n


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\u901a\u5e38\u6240\u8bf4\u76842G\u7528\u6237\uff0c\u6307\u7684\u662f\u4e24\u7c7b\uff1a<\/span><\/p>\n

1 \u529e\u7406\u7684\u662f\u8001\u76842G\u4e1a\u52a1\u5957\u9910\uff0c\u672a\u5f00\u901a3G\/4G\u670d\u52a1\u3002<\/span><\/p>\n

2 \u5f00\u901a\u4e863G\/4G\u670d\u52a1\uff0c\u4f46\u624b\u673a\u5e76\u4e0d\u652f\u6301\u3002<\/span><\/p>\n


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\u8fd9\u90e8\u5206\u7528\u6237\u57fa\u672c\u4e0a\u4ee5\u4f7f\u7528\u529f\u80fd\u673a\u7684\u8001\u5e74\u4eba\u4e3a\u4e3b\uff0c\u53ea\u662f\u5076\u5c14\u6253\u6253\u7535\u8bdd\uff0c\u5bf9\u8d39\u7528\u5f88\u654f\u611f\u3002<\/span><\/p>\n


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2G\u7528\u6237\u7684\u5177\u4f53\u6570\u91cf\u662f\u591a\u5c11\u5462\uff1f\u8fd8\u662f\u4ee5\u8054\u901a\u4e3a\u4f8b\uff1a\u76ee\u524d\u8054\u901a2G\u5ba2\u6237\u5360\u6bd4\u7ea6\u4e3a\u5ba2\u6237\u603b\u6570\u76842%\uff0c\u7ea6500\u4e07\u5de6\u53f3\u3002<\/span><\/p>\n


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\u5bf9\u8fd0\u8425\u5546\u6765\u8bf4\uff0c\u8fd9\u4e9b\u7528\u6237\u5e76\u4e0d\u80fd\u5e26\u6765\u5f88\u591a\u7684\u5229\u6da6\u6536\u5165\u3002\u7136\u800c\uff0c\u4e3a\u4e86\u8fd9\u70b9\u7528\u6237\uff0c\u5374\u8981\u591a\u7ef4\u62a4\u4e00\u5f20\u7f51\u7edc\uff0c\u663e\u7136\u5e76\u4e0d\u5212\u7b97\u3002<\/span><\/p>\n

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\u76ee\u524d\uff0c2G\u8bbe\u5907\u8001\u5316\u4e25\u91cd\uff0c\u6545\u969c\u7387\u9ad8\uff0c\u7ef4\u62a4\u6210\u672c\u7684\u538b\u529b\u8d8a\u6765\u8d8a\u5927\u3002<\/span><\/p>\n

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\u53e6\u5916\u8fd8\u6709\u4e00\u70b9\uff0c2G\u8bbe\u5907\u7684\u80fd\u8017\u5f88\u9ad8\uff0c\u8fd9\u66f4\u8ba9\u8fd0\u8425\u5546\u8089\u75bc\u4e0d\u5df2\u3002<\/span><\/p>\n


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\u57fa\u4e8e\u4ee5\u4e0a\u79cd\u79cd\u539f\u56e0\uff0c\u8fd0\u8425\u5546\u7ec8\u4e8e\u8981\u5bf92G\u52a8\u624b\u3002<\/span><\/p>\n


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\u5e72\u63892G\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u96be\uff1f<\/span>    <\/section>\n<\/section>\n<\/section>\n

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\u4e5f\u8bb8\u4f60\u4f1a\u95ee\uff0c\u65e2\u7136\u7406\u7531\u8fd9\u4e48\u5145\u5206\uff0c\u4e3a\u4ec0\u4e48\u8fd0\u8425\u5546\u4e0d\u65e9\u70b9\u52a8\u624b\uff0c\u504f\u8981\u7b49\u5230\u73b0\u5728\u5462\uff1f<\/span><\/p>\n

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\u8fd9\u91cc\u9762\u6d89\u53ca\u5230\u4e24\u4e2a\u539f\u56e0\u3002<\/span><\/p>\n


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\u9996\u5148\u7b2c\u4e00\u70b9\uff0c\u5c31\u662f\uff1a\u5173\u95ed2G\uff0c\u4f1a\u5f71\u54cd\u7f51\u7edc\u8986\u76d6<\/strong>\u3002<\/span><\/p>\n

<\/p>\n

\u5927\u5bb6\u4f7f\u7528\u624b\u673a\uff0c\u4e00\u5b9a\u9047\u5230\u8fc7\u8fd9\u4e48\u4e2a\u60c5\u51b5\u2014\u2014<\/span><\/p>\n


<\/span><\/p>\n

\u5f53\u4f60\u8fdb\u5165\u5730\u4e0b\u8f66\u5e93\u7b49\u4fe1\u53f7\u4e0d\u597d\u7684\u5730\u65b9\uff0c\u624b\u673a\u4f1a\u81ea\u52a8\u4ece4G\u4fe1\u53f7\u53d8\u62103G\u62162G\u4fe1\u53f7\u3002\u8fd9\u4e2a\u65f6\u5019\uff0c\u4e0a\u7f51\u901f\u5ea6\u4f1a\u53d8\u5f97\u975e\u5e38\u6162\uff0c\u5fae\u4fe1\u90fd\u4f1a\u5f88\u96be\u5237\u51fa\u6765\uff0c\u4f46\u662f\uff0c\u7535\u8bdd\u8fd8\u662f\u53ef\u4ee5\u6253\u7684\u3002<\/span><\/p>\n


<\/span><\/p>\n

<\/span><\/p>\n

<\/p>\n

<\/span><\/p>\n

\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5462\uff1f<\/span><\/p>\n

<\/p>\n

\u5c31\u662f\u56e0\u4e3a2G\u5efa\u7f51\u6700\u65e9\uff0c\u7528\u7684\u4f4e\u9891\u6bb5\u3002\u4f4e\u9891\u6bb5\uff0c\u610f\u5473\u7740\u8986\u76d6\u80fd\u529b\u66f4\u5f3a\u3002<\/span><\/p>\n


<\/span><\/p>\n

2G\u65f6\u4ee3\uff0c\u5927\u5bb6\u90fd\u7528\u529f\u80fd\u673a\uff0c\u4ee5\u6253\u7535\u8bdd\u4e3a\u4e3b\uff0c\u4e0d\u600e\u4e48\u4e0a\u7f51\u3002\u8fd9\u4e2a\u60c5\u51b5\u4e0b\uff0c\u8fd0\u8425\u5546\u5efa\u8bbe\u7f51\u7edc\uff0c\u4ee5\u6709\u5229\u4e8e\u8986\u76d6\u4e3a\u4e3b\u3002\u8986\u76d6\u9762\u79ef\u8d8a\u5927\uff0c\u6240\u9700\u8981\u7684\u57fa\u7ad9\u8d8a\u5c11\uff0c\u5c31\u8d8a\u7701\u94b1\u3002<\/span><\/p>\n

<\/p>\n

\u540e\u6765\uff0c3G\u30014G\u9010\u6b65\u53d1\u5c55\u8d77\u6765\uff0c\u6240\u4f7f\u7528\u7684\u9891\u7387\uff0c\u603b\u4f53\u4e0a\u662f\u5f80\u9ad8\u9891\u6bb5\u8d70\u3002<\/span><\/p>\n

<\/p>\n

\u9ad8\u9891\u6bb5\uff0c\u9891\u7387\u8d44\u6e90\u4e30\u5bcc\uff0c\u6709\u5229\u4e8e\u901f\u7387\u63d0\u5347\u3002\u4f46\u662f\uff0c\u9ad8\u9891\u6bb5\u7684\u8986\u76d6\u5c31\u5f88\u5dee\u2014\u2014\u8ddd\u79bb\u8fdc\u4e00\u70b9\uff0c\u6216\u8005\u9694\u4e00\u4e9b\u969c\u788d\u7269\uff0c\u5c31\u6ca1\u4fe1\u53f7\u3002<\/span><\/p>\n

<\/p>\n

\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u504f\u50fb\u7684\u5730\u65b9\u6ca1\u67094G\u4fe1\u53f7\uff0c\u53cd\u800c\u53ea\u67092G\u4fe1\u53f7\u3002<\/span><\/p>\n


<\/span><\/p>\n

<\/span><\/p>\n

<\/p>\n

<\/p>\n

\u4f46\u662f\uff0c\u5927\u5bb6\u5e94\u8be5\u4e5f\u770b\u660e\u767d\u4e86\uff0c<\/span><\/strong>2G\u5e76\u4e0d\u662f\u56e0\u4e3a\u6280\u672f\u5148\u8fdb\u6240\u4ee5\u8986\u76d6\u66f4\u597d\uff0c\u5b8c\u5168\u662f\u56e0\u4e3a\u5360\u636e\u4e86\u4f18\u8d28\u9891\u6bb5\uff0c\u6240\u4ee5\u8986\u76d6\u66f4\u597d\u3002\u5982\u679c3G\/4G\u7528\u90a3\u4e2a\u9891\u6bb5\uff0c\u4e00\u6837\u4e5f\u53ef\u4ee5\u505a\u5230\u4f18\u8d28\u8986\u76d6\u3002<\/span><\/strong><\/p>\n


<\/span><\/strong><\/p>\n

\u5982\u679c\u5173\u95ed2G\uff0c\u628a2G\u9891\u7387\u8ba9\u7ed93G\u62164G\uff0c\u662f\u80fd\u591f\u89e3\u51b3\u201c\u504f\u8fdc\u5730\u533a\u4fe1\u53f7\u8d28\u91cf\u4e0b\u964d<\/span><\/strong>\u201d\u8fd9\u4e2a\u95ee\u9898\u7684\u3002<\/span><\/strong><\/p>\n


<\/span><\/strong><\/p>\n

\u6240\u4ee5\uff0c\u5173\u95ed2G\u7f51\u7edc\u5bfc\u81f4\u7684\u7f51\u7edc\u8986\u76d6\u8d28\u91cf\u4e0b\u964d\uff0c\u53ea\u662f\u4e00\u4e2a\u8fc7\u6e21\u8fc7\u7a0b\uff0c\u5e76\u4e0d\u4f1a\u957f\u671f\u5b58\u5728\u3002<\/span><\/strong><\/p>\n

<\/span><\/p>\n


<\/span><\/p>\n

<\/p>\n

\u7b2c\u4e8c\u4e2a2G\u8fdf\u8fdf\u65e0\u6cd5\u9000\u7f51\u7684\u539f\u56e0\uff0c\u624d\u662f\u771f\u6b63\u8981\u547d\u7684\u2014\u2014\u90a3\u5c31\u662f\u6253\u7535\u8bdd\u95ee\u9898\u3002<\/span><\/p>\n

<\/p>\n

\u624b\u673a\u6700\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5c31\u662f\u6253\u7535\u8bdd\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u4e4b\u524d\u5c0f\u67a3\u541b\u4ecb\u7ecd\u8fc7\uff0c4G LTE\uff0c\u672c\u8eab\u662f\u4e0d\u652f\u6301\u6253\u7535\u8bdd\u7684\uff0c\u53ea\u652f\u6301\u4e0a\u7f51\uff08\u5373\u6570\u636e\u4e1a\u52a1\uff09\u3002<\/span><\/p>\n

<\/p>\n

\u7406\u8bba\u4e0a\u6765\u8bf4\uff0cLTE\u5982\u679c\u8981\u6253\u7535\u8bdd\uff0c\u5fc5\u987b\u8981\u4f7f\u7528VoLTE\u3002\uff08\u4ec0\u4e48\u662fVoLTE\uff1f\u770b<\/span>\u8fd9\u91cc<\/a><\/span>\uff09<\/span><\/p>\n

<\/p>\n

\u73b0\u5728\uff0c\u56e0\u4e3a4G\u7f51\u7edc\u7684\u8986\u76d6\u4e0d\u8db3\uff0c\u6240\u4ee5VoLTE\u7684\u4f53\u9a8c\u4e0d\u4f73\uff0c\u4e0d\u80fd\u53d6\u4ee3\u4f20\u7edf\u7535\u8bdd\u7684\u4f4d\u7f6e\u3002\u4f5c\u4e3a\u8fc7\u6e21\uff0c\u5fc5\u987b\u4f7f\u7528CSFB\u6216eSRVCC\u8fd9\u6837\u7684\u6280\u672f\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u4f9d\u7136\u8981\u4f9d\u8d562G\u30013G\u7f51\u7edc\uff0c\u624d\u80fd\u6253\u7535\u8bdd\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u5982\u679c\u4f60\u8d38\u7136\u62c6\u96642G\u548c3G\u7f51\u7edc\uff0c\u5c06\u5f88\u53ef\u80fd\u5bfc\u81f4\u4f60\u7535\u8bdd\u90fd\u6253\u4e0d\u4e86\u3002<\/span><\/p>\n

<\/p>\n

\u8fd9\u5c31\u662f\u76ee\u524d2G\u30013G\u30014G\u4e09\u7f51\u5171\u5b58\u7684\u6700\u6839\u672c\u539f\u56e0\u3002<\/span><\/strong><\/p>\n

<\/p>\n


<\/span><\/p>\n

<\/span><\/p>\n

\n
\n
\n
<\/section>\n

2G\u9000\u7f51\u5230\u5e95\u8be5\u600e\u4e48\u9000\uff1f<\/span>    <\/section>\n<\/section>\n<\/section>\n

<\/p>\n

\u65e2\u7136\u5982\u6b64\uff0c\u90a3\u6211\u4eec\u5230\u5e95\u8be5\u5982\u4f55\u5b9e\u73b0\u201c\u65e2\u9000\u7f512G\uff0c\u53c8\u4e0d\u5f71\u54cd\u7528\u6237\u201d\uff1f<\/span><\/p>\n


<\/span><\/p>\n

\u8fd9\u5c31\u6d89\u53ca\u5230\u8fd0\u8425\u5546\u7684\u9000\u7f51\u7b56\u7565\u95ee\u9898\u3002\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<\/span><\/p>\n


<\/span><\/p>\n

\u5bf9\u4e8e\u4e09\u5927\u8fd0\u8425\u5546\u6765\u8bf4\uff0c\u5404\u81ea\u7684\u9000\u7f51\u7b56\u7565\u90fd\u5fc5\u987b\u7ecf\u8fc7\u6df1\u601d\u719f\u8651\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u8054\u901a\u7b2c\u4e00\u4e2a\u52a8\u624b\uff0c\u662f\u56e0\u4e3a\u5b83\u7684\u5904\u5883\u6700\u4e3a\u4e50\u89c2\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u5bf9\u4e8e\u8054\u901a\u6765\u8bf4\uff0c\u5b83\u76843G\u662fWCDMA\u5236\u5f0f\uff0c\u8fd9\u662f\u975e\u5e38\u597d\u7684\u4e00\u4e2a\u7f51\u7edc\u5236\u5f0f\uff0c\u6210\u719f\u5ea6\u5f88\u9ad8\u3002\u800c\u4e14\u5373\u4f7f\u6ca1\u6709VoLTE\uff0cWCDMA\u90fd\u80fd\u652f\u6301\u624b\u673a\u6253\u7535\u8bdd\u4e0d\u65ad\u7f51\uff0c\u6240\u4ee5\uff0c\u5b83\u53ef\u4ee5\u653e\u5fc3\u5927\u80c6\u5730\u5e72\u6389\u81ea\u5df1\u7684GSM\u7f51\u7edc\uff082G\uff09\u3002\u53ea\u8981\u5b83\u8fc5\u901f\u628a2G\u9891\u7387\u8ba9\u7ed93G\/4G\uff0c\u7528\u6237\u4f53\u9a8c\u4e0d\u4f1a\u6709\u4ec0\u4e48\u5dee\u5f02\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u7535\u4fe1\u7684\u60c5\u51b5\uff0c\u548c\u8054\u901a\u6bd4\u8f83\u50cf\u3002\u5b83\u6709CDMA 2G\u548cCDMA 3G\uff0c\u7559\u65b0\u4e0d\u7559\u65e7\uff0c\u5b83\u5e94\u8be5\u4e5f\u4f1a\u9009\u62e9\u5e72\u6389\u81ea\u5df1\u76842G CDMA\u7f51\u7edc\u3002\uff08\u7f51\u4e0a\u6709\u4eba\u8bf4\u7535\u4fe1\u4f1a2G\u548c3G\u4e00\u8d77\u5e72\u6389\uff0c\u8fd9\u662f\u4e0d\u73b0\u5b9e\u7684\uff0c\u56e0\u4e3a\u5b83\u4e00\u6837\u9762\u4e34\u6253\u7535\u8bdd\u7684\u95ee\u9898\u3002\u8fd9\u4e2a\u57fa\u672c\u9700\u6c42\u662f\u9700\u8981\u4fdd\u8bc1\u7684\u3002<\/span>\uff09<\/span><\/p>\n

<\/p>\n

\u6700\u82e6\u903c\u7684\uff0c\u5c31\u662f\u4e2d\u56fd\u79fb\u52a8\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u4e2d\u56fd\u79fb\u52a8\u76843G\u7f51\u7edc\u662fTD-SCDMA\u5236\u5f0f\u3002\u4e4b\u524d\u5c0f\u67a3\u541b\u5199\u6587\u7ae0\uff08<\/span>\u94fe\u63a5<\/a>\uff09<\/span>\u4ecb\u7ecd\u8fc7\uff0cTD-SCDMA\u7684\u7f51\u7edc\u8d28\u91cf\u5f88\u5dee\uff0c\u57fa\u672c\u4e0a\u6ca1\u4ec0\u4e48\u4f5c\u7528\u3002\u76f8\u53cd\uff0c\u79fb\u52a8\u7684GSM\u7f51\u7edc\u66f4\u9760\u8c31\u4e00\u4e9b\uff0c\u8986\u76d6\u975e\u5e38\u5b8c\u5584\u3002\u6240\u4ee5\uff0c\u79fb\u52a8\u7684\u505a\u6cd5\uff0c\u5e94\u8be5\u662f\u5148\u5e72\u6389\u81ea\u5df1\u76843G\uff0c\u4fdd\u75592G\uff0c\u7136\u540e\u7ee7\u7eed\u6df1\u80154G\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u518d\u6b21\u5fc3\u75bc\u79fb\u52a8\u4e00\u79d2\u949f\u3002\u3002\u3002<\/span><\/p>\n

<\/p>\n

<\/p>\n

\n
\n
\n
<\/section>\n

2G\u9000\u7f51\uff0c\u7528\u6237\u8be5\u4f55\u53bb\u4f55\u4ece\uff1f<\/span>    <\/section>\n<\/section>\n<\/section>\n

<\/p>\n

\u6700\u540e\uff0c\u6211\u4eec\u8fd8\u662f\u8981\u5173\u5fc3\u4e00\u4e0b\u201c2G\u7f51\u7edc\u5173\u95ed\u4e4b\u540e\uff0c\u7528\u6237\u8be5\u600e\u4e48\u529e<\/span>\u201d\u7684\u95ee\u9898\u3002<\/span><\/p>\n

<\/p>\n

\u5176\u5b9e\uff0c\u6b63\u5982\u524d\u9762\u6240\u8bf4\uff0c\u5bf9\u4e8e\u5927\u90e8\u52063G\/4G\u7528\u6237\uff0c\u5173\u95ed2G\u7f51\u7edc\u5e76\u4e0d\u4f1a\u5f71\u54cd\u611f\u77e5\u3002\u90a3500\u4e07\u8054\u901a\u7eaf2G\u7528\u6237\u7684\u95ee\u9898\uff0c\u89e3\u51b3\u8d77\u6765\u4e5f\u4e0d\u4f1a\u5f88\u9ebb\u70e6\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u4e00\u65b9\u9762\uff0c\u8054\u901a\u4f1a\u901a\u8fc7\u540c\u7b49\u6216\u7c7b\u4f3c\u8d44\u8d39\u6807\u51c6\u7684\u5957\u9910\u8fdb\u884c\u8fc1\u79fb\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u4e5f\u4f1a\u91c7\u7528\u8865\u8d34\u8d2d\u673a\u8d39\u7528\u7b49\u65b9\u5f0f\uff0c\u5f15\u5bfc\u8001\u7528\u6237\u8f6c\u7f51\u3002<\/span><\/p>\n


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<\/p>\n

<\/span><\/p>\n

\u53cd\u6b63\u5c31\u662f\u82b1\u70b9\u94b1\uff0c\u6bd4\u8d77\u9ad8\u6602\u7684\u7f51\u7edc\u7ef4\u62a4\u8d39\u7528\uff0c\u8fd9\u70b9\u94b1\u90fd\u4e0d\u7b97\u4ec0\u4e48\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u8981\u77e5\u9053\uff0c\u5f53\u5e74\u4e2d\u56fd\u7535\u4fe1\u7684\u5c0f\u7075\u901a\u9000\u7f51\uff0c\u90a3\u53ef\u662f\u5c06\u8fd11\u4ebf\u7684\u7528\u6237\u6570\uff0c\u4e0d\u662f\u4e00\u6837\u8bf4\u9000\u5c31\u9000\u4e86\uff1f<\/span><\/p>\n

<\/p>\n

\u9664\u4e86\u8fd9\u4e9b2G\u624b\u673a\u7528\u6237\u4e4b\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u7528\u6237\u7fa4\u9700\u8981\u5f15\u8d77\u6ce8\u610f\u2014\u2014\u90a3\u5c31\u662f\u57fa\u4e8eGSM\u7f51\u7edc\u7684\u7269\u8054\u7f51\u7528\u6237\uff0c\u4f8b\u5982\u5171\u4eab\u5355\u8f66\u3002<\/span><\/p>\n


<\/span><\/p>\n

<\/p>\n

\u65e9\u671f\u7684\u5171\u4eab\u5355\u8f66\uff0c\u4f7f\u7528\u7684\u5c31\u662fGSM\u5361<\/span><\/p>\n

\u5bf9\u7f51\u901f\u7684\u8981\u6c42\u4e0d\u9ad8\uff0c\u5bf9\u8986\u76d6\u7684\u8981\u6c42\u9ad8<\/span><\/p>\n

<\/p>\n

2G\u9000\u7f51\u7684\u8bdd\uff0c\u8fd9\u4e9b\u7269\u8054\u7f51\u7528\u6237\u4e5f\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/span><\/p>\n


<\/span><\/p>\n

\u8fd9\u4e2a\u95ee\u9898\u4e5f\u4e0d\u96be\u89e3\u51b3\u3002\u8fd0\u8425\u5546\u80af\u5b9a\u4f1a\u5411NB-IoT\uff08\u7a84\u5e26\u7269\u8054\u7f51\uff09\u7684\u65b9\u5411\u8fdb\u884c\u5f15\u5bfc\uff0c\u521a\u597d\u8fd9\u4e5f\u7b26\u5408\u8fd0\u8425\u5546\u5927\u529b\u53d1\u5c55NB-IoT\u7684\u7b56\u7565\u3002<\/span><\/p>\n

<\/p>\n

<\/p>\n

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