{"id":407,"date":"2021-01-07T12:21:29","date_gmt":"2021-01-07T04:21:29","guid":{"rendered":"http:\/\/www.xzclass.com\/?p=407"},"modified":"2022-02-28T14:35:10","modified_gmt":"2022-02-28T06:35:10","slug":"5g%e7%9c%9f%e7%9a%84%e6%9b%b4%e8%80%97%e7%94%b5%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.xzclass.com\/?p=407","title":{"rendered":"5G\u771f\u7684\u66f4\u8017\u7535\u5417\uff1f"},"content":{"rendered":"<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">2020\u5e74\uff0c\u5e9a\u5b50\u5e74\uff0c\u201c\u4e2d\u56fd\u6218\u75ab\u201d\u4e3e\u4e16\u77a9\u76ee\u3002<\/span><span style=\"font-size: 15px\">\u8fd9\u4e00\u5e74<\/span><span style=\"font-size: 15px\">\uff0c5G\u5143\u5e74\uff0c<\/span><span style=\"font-size: 15px\">\u4e2d<\/span><span style=\"font-size: 15px\">\u56fd\u901a\u4fe1<\/span><span style=\"font-size: 15px\">\u540c\u6837\u8868\u73b0\u62a2\u773c<\/span><span style=\"font-size: 15px\">\u3002<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><\/span><span style=\"font-size: 15px\">\u6839\u636e\u6700\u65b0\u7684\u7edf\u8ba1\u6570\u636e<\/span><span style=\"font-size: 15px\">\uff0c<\/span><span style=\"font-size: 15px\">\u4e2d\u56fd\u5b8c\u62105G\u57fa\u7ad9\u5efa\u8bbe\u8d85\u8fc770\u4e07\u5ea7\uff0c<span style=\"font-size: 15px\">5G<\/span><span style=\"font-size: 15px\">\u7ec8\u7aef\u8fde\u63a5\u6570\u7a81\u78342\u4ebf\u3002\u6beb\u65e0\u7591\u95ee\uff0c\u4e2d\u56fd<\/span>\u901a\u4fe1\u4eba\u4ea4\u51fa\u4e86\u4e00\u4efd\u4ee4\u4eba\u6ee1\u610f\u7684\u7b54\u5377\uff0c\u56fd\u5185<\/span><span style=\"font-size: 15px\">5G\u5e02\u573a\u6b63\u5728\u5168\u9762\u7206\u53d1\u3002<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4f46\u53e6\u4e00\u65b9\u9762\uff0c\u5173\u4e8e5G\u57fa\u7ad9\u9ad8\u8017\u7535\u7684\u8bae\u8bba\uff0c\u65f6\u6709\u51fa\u73b0\u3002\u4eba\u4eec\u62c5\u5fc3\uff0c5G\u7684\u57fa\u7ad9\u7528\u7535\u6210\u672c\uff0c\u4f1a\u8ba9\u8fd0\u8425\u5546\u4e0d\u582a\u91cd\u8d1f\u3002<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\uff0c\u7b14\u8005\u5c06\u8be6\u7ec6\u5206\u67905G\u7684\u80fd\u8017\uff0c\u4ee5\u53ca\u4ea7\u54c1\u8bbe\u8ba1\u4e2d\u7684\u8282\u80fd\u73af\u8282\u3002<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 17px\"><strong style=\", Arial, sans-serif;letter-spacing: 0.544px\">\u2589&nbsp;5G\u5176\u5b9e\u66f4\u7701\u7535<\/strong><\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">5G\u8bbe\u5907\u7684\u8017\u7535\u771f\u7684\u6bd44G\u591a\u5417\uff1f<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u975e\u5e38\u9057\u61be\uff0c\u8fd9\u4e2a\u7b54\u6848\u662f\u80af\u5b9a\u7684\u30025G\u7684\u8017\u7535\u9ad8\uff0c\u4e3b\u8981\u6709\u4e24\u70b9\u539f\u56e0\uff1a<\/span><\/p>\n<p style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/p>\n<ul class=\"list-paddingleft-2\" style=\"list-style-type: disc\">\n<li style=\"font-weight: bold\">\n<section style=\"line-height: 1.75em\"><strong><span style=\"font-size: 15px\">5G\u4f7f\u7528Massive MIMO\u6280\u672f<\/span><\/strong><\/section>\n<\/li>\n<\/ul>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">4G\u57fa\u7ad9RRU\u4f7f\u75288\u5929\u7ebf\uff0c\u5929\u7ebf\u77e9\u9635\u5b9e\u73b02D MIMO\uff0c\u6ee1\u529f\u7387\u8f93\u51fa160W\u5c04\u9891\u4fe1\u53f7\uff1b5G\u57fa\u7ad9AAU\u4f7f\u752864\u5929\u7ebf\uff0c\u5929\u7ebf\u77e9\u9635\u5b9e\u73b03D MIMO\uff0c\u6ee1\u529f\u7387\u8f93\u51fa320W\u5c04\u9891\u4fe1\u53f7\u3002\u5982\u679c\u6548\u7387\u76f8\u540c\uff0c5G AAU\u7684\u8017\u80fd\u662f4G RRU\u76842\u500d\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5b9e\u9645\u4e0a\uff0c\u5f97\u76ca\u4e8e\u66f4\u9ad8\u6548\u7684PA\uff08<span style=\"font-size: 15px\">Power Amplifier\uff0c<\/span>\u529f\u7387\u653e\u5927\u5668\uff09\u82af\u7247\u548c\u66f4\u597d\u7684DPD\uff08Digital Pre-Distortion\uff0c\u6570\u5b57\u9884\u5931\u771f\uff09\u7b97\u6cd5\uff0c5G\u8bbe\u5907\u7684\u6548\u7387\u662f\u6bd44G\u9ad8\u7684\u3002\u4e5f\u5c31\u662f\u8bf4\uff0cAAU\u7684\u8017\u80fd\u4e0d\u5230RRU\u76842\u500d\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<ul class=\"list-paddingleft-2\" style=\"list-style-type: disc\">\n<li style=\"font-weight: bold\">\n<section style=\"line-height: 1.75em\"><strong><span style=\"font-size: 15px\">5G\u4f7f\u7528\u4e86\u66f4\u9ad8\u7684\u9891\u6bb5<\/span><\/strong><\/section>\n<\/li>\n<\/ul>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u7531\u4e8e\u9ad8\u5e26\u5bbd\u548cMassive MIMO\u7684\u8981\u6c42\uff0c5G\u4f7f\u7528\u8f83\u9ad8\u9891\u7387\u9891\u6bb5\u3002\u5728SUB-6GHz\u7684\u9891\u8c31\u4e2d\uff0c\u4e2d\u56fd\u79fb\u52a8\u4f7f\u75282.6GHz\u9891\u6bb5\uff08\u548c4G\u76f8\u540c\uff09\uff1b\u4e2d\u56fd\u7535\u4fe1\u548c\u4e2d\u56fd\u8054\u901a\u4f7f\u75283.5GHz\u9891\u6bb5\uff08\u4e24\u5bb6\u8fd0\u8425\u55464G TDD LTE\u9891\u6bb5\u662f2.6GHz\u9891\u6bb5\uff09\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6839\u636e\u65e0\u7ebf\u4fe1\u53f7\u81ea\u7531\u7a7a\u95f4\u4f20\u8f93\u635f\u8017\u516c\u5f0f\uff1a<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><span style=\"font-size: 15px\"><strong><span>Los (dB)= 32.44 +20lg( d(km)) +20lg( f(MHz))<\/span><\/strong><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4e2d\u56fd\u79fb\u52a85G\u8986\u76d6\u548c4G\u76f8\u5f53\uff0c\u800c\u4e2d\u56fd\u7535\u4fe1\u548c\u4e2d\u56fd\u8054\u901a\u76845G\u8986\u76d6\u8ddd\u79bb\u5927\u6982\u662f4G\u65f6\u76840.75\u500d\uff0c\u7ad9\u70b9\u6570\u7406\u8bba\u4e0a\u589e\u52a01.8\u500d\u3002\u8fbe\u5230\u4e0e4G\u76f8\u540c\u7684\u8986\u76d6\u6548\u679c\uff0c5G\u7ad9\u70b9\u6570\u7406\u8bba\u4e0a\u662f4G\u76841.2~1.4\u500d\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4ee5\u4e0a\u4e24\u70b9\u56e0\u7d20\u53e0\u52a0\uff0c5G\u5168\u7f51\u7684\u8017\u80fd\u5c06\u662f4G\u5168\u7f51\u8017\u80fd\u76842.4~2.8\u500d\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u770b\u67655G\u7684\u80fd\u8017\u786e\u5b9e\u4e0d\u53ef\u5c0f\u89d1\u3002\u90a3\u4e48\uff0c\u53c8\u662f\u4ec0\u4e48\u539f\u56e0\u8ba95G\u9009\u62e9Massive MIMO\u548c\u9ad8\u9891\u6bb5\u5462\uff1f<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\">Massive MIMO\u7684\u4f18\u52bf\u663e\u800c\u6613\u89c1\uff1a<\/span><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><\/section>\n<ol class=\"list-paddingleft-2\" style=\"list-style-type: decimal\">\n<li>\n<p><span style=\"font-size: 15px\">\u5229\u7528\u5782\u76f4\u7eac\u5ea6\u548c\u6c34\u5e73\u7eac\u5ea6\u7684\u5929\u7ebf\u81ea\u7531\u5ea6\uff0c\u65f6\u9891\u8d44\u6e90\u5229\u7528\u7387\u63d0\u5347\uff1b<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"font-size: 15px\">\u7528\u6237\u95f4\u7684\u5e72\u6270\u964d\u4f4e\uff1b<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"font-size: 15px\">\u63d0\u5347\u5c0f\u533a\u541e\u5410\u7387\uff1b<\/span><\/p>\n<\/li>\n<li>\n<p><span style=\"font-size: 15px\">\u63d0\u5347\u5c0f\u533a\u8fb9\u7f18\u7528\u6237\u4f53\u9a8c\u3002<\/span><\/p>\n<\/li>\n<\/ol>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px;text-align: center\"><span style=\"font-size: 15px\"><img decoding=\"async\" data-ratio=\"0.5136986301369864\" src=\"http:\/\/www.xzclass.com\/img.php?img=https:\/\/mmbiz.qpic.cn\/sz_mmbiz_jpg\/pUm6Hxkd4344LXhGMVVJkjcyWHYhiaExJUUwsibDwLPdby8BjVZnp2GbEMylHVuM7saZYNV8d6miaf9uQKUmwrSicA\/640?wx_fmt=jpeg\" data-type=\"jpeg\" data-w=\"584\" style=\"height: 267px;font-family: \u5fae\u8f6f\u96c5\u9ed1;font-size: 13.3333px;letter-spacing: 0.6px;width: 519.76px\" \/><span style=\"font-family: \u5fae\u8f6f\u96c5\u9ed1;font-size: 13.3333px;letter-spacing: 0.6px\"><\/span><\/span><\/section>\n<section><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\">\u800c\u9ad8\u9891\u6bb5\u9891\u8c31\u52a9\u529b5G Massive MIMO\u7684\u5b9e\u73b0\u3002<\/span><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\"><\/span><span style=\"font-size: 15px\">\u5929\u7ebf\u7684\u5c3a\u5bf8\u548c\u9891\u7387\u6709\u5173\u3002<\/span><span style=\"font-size: 15px\">\u9891\u7387\u8d8a\u9ad8\uff0c\u5c04\u9891\u4fe1\u53f7\u6ce2\u957f\u8d8a\u77ed\uff0c\u76f8\u5e94\u7684\u5929\u7ebf\u5c3a\u5bf8\u8d8a\u5c0f\u3002<\/span><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"line-height: 1.75em;margin-left: 8px;margin-right: 8px\"><span style=\"font-size: 15px\"><\/span><span style=\"font-size: 15px\">5G\u7684AAU\u73b0\u5728\u4f7f\u752864\u5929\u7ebf\u9635\uff0c\u5f80\u540e\u53d1\u5c55\u8fd8\u4f1a\u6709128\u5929\u7ebf\u9635\u548c256\u5929\u7ebf\u9635\u3002<\/span><span style=\"font-size: 15px\">\u5927\u89c4\u6a21\u7684\u5929\u7ebf\u9635\uff0c\u4fc3\u4f7f5G\u9009\u62e9\u9ad8\u9891\u6bb5\u9891\u8c31\u8d44\u6e90\u3002<\/span><br \/><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">5G\u786e\u5b9e\u6bd44G\u8017\u80fd\u66f4\u591a\uff0c\u4f46\u4e0d\u80fd\u7247\u9762\u770b\u5f85\u8fd9\u4e2a\u95ee\u9898\u30025G\u8fd9\u5339\u201c\u5343\u91cc\u9a6c\u201d\u5403\u5f97\u867d\u7136\u591a\uff0c\u4f46\u662f\uff0c\u5b83\u62c9\u4e86\u8f86\u66f4\u5927\u7684\u8f66\u2014\u20145G\u7cfb\u7edf\u5bb9\u91cf\u662f4G\u768420\u500d\u4ee5\u4e0a\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5b9e\u9645\u4e0a\uff0c\u5c31\u4f20\u8f93\u5355\u4f4d\u6bd4\u7279\u4fe1\u606f\u91cf\u7684\u529f\u8017\u800c\u8a00\uff0c5G \u662f\u66f4\u7701\u7535\u7684\u3002<strong>5G\u6bcf\u6bd4\u7279\u6570\u636e\u6d88\u8017\u7684\u80fd\u91cf\u7ea6\u662f4G\u76841\/10\u3002<\/strong><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 17px\"><strong style=\", Arial, sans-serif;letter-spacing: 0.544px\">\u2589&nbsp;\u8282\u80fd\u51cf\u6392\u6c38\u8fdc\u5728\u8def\u4e0a<\/strong><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6211\u4eec\u518d\u6765\u770b\u4e00\u7ec4\u6570\u636e\u2014\u20142018\u5e74\u4e09\u5927\u8fd0\u8425\u5546\u7684\u7535\u8d39\uff1a\u4e2d\u56fd\u79fb\u52a8245\u4ebf\u5143\uff0c\u4e2d\u56fd\u7535\u4fe1140\u4ebf\u5143\uff0c\u4e2d\u56fd\u8054\u901a120\u4ebf\u5143\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6309\u4e4b\u524d\u7684\u4f30\u7b97\uff0c5G\u80fd\u8017\u662f4G\u76842.2~2.4\u500d\u3002\u9884\u8ba15G\u5168\u7f51\u5efa\u6210\u540e\uff0c<strong>\u5168\u7f51\u5e74\u7535\u8d39\u5c06\u8fbe\u52301200~1400\u4ebf\u5143<\/strong>\u3002<\/span><span style=\"font-size: 15px\">\u867d\u71365G\u4f1a\u7ed9\u8fd0\u8425\u5546\u5e26\u6765\u5229\u6da6\u56de\u62a5\uff0c\u4f46\u57fa\u7ad9\u8bbe\u5907\u7684\u8282\u80fd\u51cf\u6392\uff0c\u662f\u8fd0\u8425\u5546\u5fc5\u987b\u91cd\u89c6\u7684\u95ee\u9898\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6bdb\u4e3b\u5e2d\u5728\u300a\u77db\u76fe\u8bba\u300b\u4e2d\u63d0\u51fa\u2014\u2014\u8981\u6293\u4f4f\u95ee\u9898\u7684\u4e3b\u8981\u77db\u76fe\u3002\u57fa\u7ad9\u80fd\u8017\u7684\u4e3b\u8981\u77db\u76fe\u662fAAU\uff08RRU\uff09\uff0cAAU\u80fd\u8017\u7684\u4e3b\u8981\u77db\u76fe\u662f<strong>\u53d1\u5c04\u673a\u7684\u5c04\u9891\u529f\u7387\u653e\u5927\u5668<\/strong>\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u8c08\u5230AAU\u4e2d\u5c04\u9891\u529f\u7387\u653e\u5927\u5668\u6548\u7387\u7684\u63d0\u5347\uff0c\u8fd9\u91cc\u5fc5\u987b\u8981\u63d0\u5230\u4e00\u5957\u201c\u9ec4\u91d1\u63d0\u6548\u65b9\u6848<span style=\"font-size: 15px\">\u201d<\/span>\uff1a<strong>Doherty+CFR+DPD<\/strong>\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6211\u4eec\u9996\u5148\u6765\u770b\u8fd9\u5957\u9ad8\u6548\u7387\u65b9\u6848\u751f\u6210\u7684\u80cc\u666f\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5b9e\u9645\u4e0a\uff0c\u8fd9\u5957\u9ad8\u6548\u7387\u65b9\u6848\u57284G\u65f6\u4ee3\u5c31\u5f00\u59cb\u4f7f\u7528\u4e86\uff0c\u5b83\u662f\u9488\u5bf9OFDM\u7cfb\u7edf\u63d0\u51fa\u7684\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u7531\u4e8eOFDM\u7b26\u53f7\u662f\u7531\u591a\u4e2a\u72ec\u7acb\u7684\u8c03\u5236\u7684\u4fe1\u53f7\u76f8\u52a0\u800c\u6210\u7684\uff0c\u8fd9\u6837\u5408\u6210\u7684\u4fe1\u53f7\u5c31\u6709\u53ef\u80fd\u4ea7\u751f\u6bd4\u8f83\u5927\u7684\u5cf0\u503c\u529f\u7387\u3002\u5e76\u4e14\u8f7d\u6ce2\u6570\u8d8a\u591a\uff0c\u5cf0\u503c\u4fe1\u53f7\u529f\u7387\u8d8a\u5927\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5728\u5206\u6790\u8fd9\u79cd\u7c7b\u578b\u4fe1\u53f7\u65f6\uff0c\u63d0\u51fa\u4e86\u5cf0\u5747\u6bd4<span style=\"font-size: 15px\">\uff08PAR\uff0c<\/span><span style=\"font-size: 15px\">Peak-to-Average Ratio<\/span><span style=\"font-size: 15px\">\uff09<\/span>\u7684\u6982\u5ff5\u3002PAR\u662f\u7b26\u53f7\u7684\u5cf0\u503c\u529f\u7387\u4e0e\u5e73\u5747\u529f\u7387\u7684\u6bd4\u503c\uff1a<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em;text-align: center\"><strong><span style=\"font-size: 15px\">PAR\uff08dB\uff09=Ppeak(dbm)-Pmean(dbm)<\/span><\/strong><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><img decoding=\"async\" data-ratio=\"0.4547677261613692\" src=\"http:\/\/www.xzclass.com\/img.php?img=https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/pUm6Hxkd4344LXhGMVVJkjcyWHYhiaExJjfcW7hBtFvjbsLyPauPicUg01NGOagyaPicpCJbYic7s6Qq8N20u34gxQ\/640?wx_fmt=png\" data-type=\"png\" data-w=\"409\" style=\"width:409.2200012207031px;height:185.72999572753906px\" \/><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><span style=\"font-size: 14px\">OFDM\u65f6\u9891\u4fe1\u53f7<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">OFDM\u7cfb\u7edf\u4fe1\u53f7\u7684\u7279\u70b9\u662f\u65f6\u57df\u4e3a\u975e\u6052\u5305\u7edc\u72b6\u6001\uff0c\u5cf0\u503c\u529f\u7387\u968f\u673a\u51fa\u73b0\u3002\u5927\u5cf0\u5747\u6bd4\u4fe1\u53f7\u7684\u51fa\u73b0\uff0c\u4f1a\u964d\u4f4e\u5c04\u9891\u524d\u7aef\u529f\u653e\u7684\u6548\u7387\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4f34\u968f\u9ad8\u5cf0\u5747\u6bd4\u4fe1\u53f7\u7684\u51fa\u73b0\uff0c<strong>\u524a\u5cf0\u6280\u672f\uff08CFR\uff09<\/strong>\u5c31\u8bde\u751f\u4e86\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">CFR\u5373\u964d\u4f4e\u4fe1\u53f7\u5cf0\u5747\u6bd4\u7684\u6280\u672f\u3002\u4fe1\u53f7\u7684\u524a\u5cf0\u4f1a\u5e26\u6765\u4e00\u5b9a\u7684\u5931\u771f\uff0c\u8fc7\u591a\u7684\u524a\u5cf0\u4f1a\u5f71\u54cd\u63a5\u6536\u673a\u7684\u8bef\u7801\u7387\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u57284G\u30015G\u79fb\u52a8\u901a\u4fe1\u4e2d\uff0c\u4fe1\u53f7\u7684\u539f\u59cb\u5cf0\u5747\u6bd4\u6709\u5341\u51e0dB\uff0c\u7ecf\u8fc7\u524a\u5cf0\u540e\uff0c\u9001\u7ed9\u53d1\u5c04\u5355\u5143\u7684\u4fe1\u53f7\u7684\u5cf0\u5747\u6bd4\u4e00\u822c\u4e3a6~7dB\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4e3a\u4e86\u6ee1\u8db3\u53d1\u5c04\u673a\u7684\u7ebf\u6027\u6307\u6807\uff0c\u5de5\u7a0b\u5e08\u5728\u8bbe\u8ba1\u653e\u5927\u5668\u65f6\uff0c\u53ef\u80fd\u4f1a\u9009\u62e9\u529f\u7387\u56de\u9000\u65b9\u6848\u3002\u529f\u7387\u56de\u9000\u662f\u6307\uff0c\u8ba9\u529f\u7387\u653e\u5927\u5668\u8f93\u51fa\u6bd4\u81ea\u5df1\u9971\u548c\u529f\u7387\u4f4e\u5f97\u591a\u7684\u529f\u7387\u4fe1\u53f7\uff0c\u4ee5\u4fdd\u8bc1\u8f93\u51fa\u4fe1\u53f7\u7684\u7ebf\u6027\u6307\u6807\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u8be5\u65b9\u6848\u5b9e\u73b0\u96be\u5ea6\u5c0f\uff0c\u7ed3\u6784\u7b80\u5355\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u6bd4\u5982\uff0c\u8f93\u51fa10W\u7684\u4fe1\u53f7\uff0c\u5de5\u7a0b\u5e08\u4f1a\u9009\u62e9\u9971\u548c\u529f\u7387\u5927\u4e8e10W\u7684\u529f\u7387\u653e\u5927\u5668\u505a\u65b9\u6848\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4f46\u9ad8\u5cf0\u5747\u6bd4\u4fe1\u53f7\u7684\u51fa\u73b0\uff0c\u4f7f\u529f\u7387\u56de\u9000\u9700\u8981\u56de\u9000\u5230\u5cf0\u503c\u529f\u7387\u4ee5\u4e0a\u3002\u6bd4\u5982\u8f93\u51fa\u5e73\u5747\u529f\u7387\u4e3a10W\uff0c\u5cf0\u5747\u6bd4\u4e3a6dB\u7684\u4fe1\u53f7\uff0c\u5de5\u7a0b\u5e08\u9700\u9009\u62e9\u9971\u548c\u529f\u7387\u5927\u4e8e40W\u7684\u529f\u653e\u7ba1\u6765\u505a\u65b9\u6848\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u4f46\u662f\u529f\u653e\u7684\u8f93\u51fa\u529f\u7387\u548c\u6548\u7387\u662f\u6b63\u6bd4\u5173\u7cfb\uff0c\u4e3a\u4e86\u6ee1\u8db3\u77ac\u65f6\u5927\u4fe1\u53f7\u7684\u7ebf\u6027\u6307\u6807\uff0c\u9ad8\u5cf0\u5747\u6bd4\u7cfb\u7edf\u4f7f\u7528\u56de\u9000\u65b9\u6848\u4f1a\u5bfc\u81f4\u6548\u7387\u4f4e\u4e0b\u3002\u5982\u679cAAU\u53d1\u5c04\u673a\u653e\u5927\u5668\u4f7f\u7528\u7eaf\u56de\u9000\u65b9\u6848\uff0c\u672b\u7ea7\u529f\u653e\u6548\u7387\u5c06\u4e0d\u8db315%\uff0c\u6574\u673a\u6548\u7387\u4e0d\u8db310%\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">Doherty\u653e\u5927\u5668\u89e3\u51b3\u4e86\u9ad8\u5cf0\u5747\u6bd4\u7cfb\u7edf\u6548\u7387\u4f4e\u7684\u95ee\u9898\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5176\u7ed3\u6784\u5982\u56fe\uff0cDoherty\u653e\u5927\u5668\u901a\u5e38\u60c5\u51b5\u4e0b\u4f7f\u7528\u4e24\u4e2a\u5b8c\u5168\u76f8\u540c\u7684\u653e\u5927\u7ba1\u6765\u5bf9\u4fe1\u53f7\u8fdb\u884c\u653e\u5927\u3002\u9650\u4e8e\u7bc7\u5e45\uff0c\u5176\u5de5\u4f5c\u539f\u7406\u65e0\u6cd5\u5c55\u5f00\u7ec6\u8bf4\u3002\u5b83\u6700\u5927\u7684\u7279\u70b9\u662f\uff0c\u653e\u5927\u5668\u5728\u8f93\u51fa\u529f\u7387\u4f4e\u4e8e\u9971\u548c\u529f\u73876db\u65f6\u7684\u6548\u7387\uff0c\u4e0e\u8f93\u51fa\u9971\u548c\u529f\u7387\u65f6\u7684\u6548\u7387\u76f8\u5f53\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\"><br \/><\/span><\/section>\n<section style=\"margin-right: 8px;margin-left: 8px;text-align: center;line-height: 1.75em\"><img decoding=\"async\" data-ratio=\"0.6056782334384858\" src=\"http:\/\/www.xzclass.com\/img.php?img=https:\/\/mmbiz.qpic.cn\/sz_mmbiz_jpg\/pUm6Hxkd4344LXhGMVVJkjcyWHYhiaExJD7H50Mbyjh47uI07AmAe9gJmleJMNnvQJk0xvER8MicSOZSEWT0ypSg\/640?wx_fmt=jpeg\" data-type=\"jpeg\" data-w=\"634\" style=\"height: 194.56px;width: 253.6px\" \/><\/section>\n<section style=\"margin-right: 8px;margin-left: 8px;text-align: center;line-height: 1.75em\"><span style=\"font-size: 14px\">Doherty\u7ed3\u6784<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u5373\u57285G\u7cfb\u7edf\u4e2d\uff0cDoherty\u653e\u5927\u5668\u8f93\u51fa\u5e73\u5747\u529f\u7387\u65f6\u5177\u6709\u9971\u548c\u529f\u7387\u6548\u7387\u3002\u6bd4\u5982Doherty\u529f\u653e\u7684\u9971\u548c\u529f\u7387\u662f100W\uff0c\u8f93\u5165\u4fe1\u53f7\u7684\u5cf0\u5747\u6bd4\u662f6db\uff0c\u5f53\u8f93\u51fa25W\u529f\u7387\u65f6\uff0c\u5176\u6548\u7387\u4e0e\u653e\u5927\u5668\u8f93\u51fa100W\u529f\u7387\u76f8\u540c\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><img decoding=\"async\" data-ratio=\"0.7406015037593985\" src=\"http:\/\/www.xzclass.com\/img.php?img=https:\/\/mmbiz.qpic.cn\/sz_mmbiz_png\/pUm6Hxkd4344LXhGMVVJkjcyWHYhiaExJXtUm02kuwWd8cbic506XvXROEhMC0BRQayXuPVK0gPk1mIq5V6hiaXrQ\/640?wx_fmt=png\" data-type=\"png\" data-w=\"266\" style=\"width:265.6099853515625px;height:197.0800018310547px\" \/><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;text-align: center;line-height: 1.75em\"><span style=\"font-size: 14px\">Doherty\u6548\u7387\u66f2\u7ebf<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 15px\">\u76ee\u524d\u56fd\u5185\u51e0\u4e2a\u5927\u5382\u7684AAU\u672b\u7ea7Doherty\u529f\u653e\u7684\u6548\u7387\u5df2\u7ecf\u505a\u523050%\u4ee5\u4e0a\uff0cAAU\u6574\u673a\u6548\u7387\u8d85\u8fc740%\u3002\u76f8\u5bf9\u4e8e\u7eaf\u56de\u9000\u65b9\u6848\uff0cDoherty\u65b9\u6848\u7684\u6574\u673a\u80fd\u8017\u662f\u51761\/4\u3002<\/span><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><\/section>\n<section style=\"margin-left: 8px;margin-right: 8px;line-height: 1.75em\"><span style=\"font-size: 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