{"id":99010,"date":"2024-11-10T13:38:02","date_gmt":"2024-11-10T05:38:02","guid":{"rendered":"\/\/www.viralrail.com\/?p=99010"},"modified":"2024-11-10T13:38:06","modified_gmt":"2024-11-10T05:38:06","slug":"kjfygzyl","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/99010.html","title":{"rendered":"\u7a7a\u95f4\u590d\u7528\u5de5\u4f5c\u539f\u7406"},"content":{"rendered":"\n

\u3000\u3000\u7a7a\u95f4\u590d\u7528(Spatial Multiplexing)<\/strong>\u662f\u4e00\u79cd\u5728\u65e0\u7ebf\u901a\u4fe1\u4e2d\u63d0\u9ad8\u9891\u8c31\u6548\u7387\u548c\u7cfb\u7edf\u5bb9\u91cf\u7684\u6280\u672f\u3002\u5176\u57fa\u672c\u539f\u7406\u662f\u5229\u7528\u591a\u5929\u7ebf\u7cfb\u7edf\u5c06\u9ad8\u901f\u6570\u636e\u6d41\u5206\u6210\u591a\u8def\u4f4e\u901f\u6570\u636e\u6d41\uff0c\u7136\u540e\u901a\u8fc7\u4e0d\u540c\u7684\u5929\u7ebf\u540c\u65f6\u53d1\u9001\u8fd9\u4e9b\u6570\u636e\u6d41\u3002\u7531\u4e8e\u4e0d\u540c\u7a7a\u95f4\u4fe1\u9053\u95f4\u5177\u6709\u76f8\u5bf9\u72ec\u7acb\u7684\u8870\u843d\u7279\u6027\uff0c\u63a5\u6536\u7aef\u53ef\u4ee5\u901a\u8fc7\u6700\u5c0f\u5747\u65b9\u8bef\u5dee(MMSE)\u6216\u8005\u4e32\u884c\u5e72\u6270\u5220\u9664\u7b49\u6280\u672f\uff0c\u533a\u5206\u5e76\u63a5\u6536\u8fd9\u4e9b\u5e76\u884c\u7684\u6570\u636e\u6d41\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728MIMO(\u591a\u8f93\u5165\u591a\u8f93\u51fa)\u7cfb\u7edf\u4e2d\uff0c\u7a7a\u95f4\u590d\u7528\u901a\u8fc7\u5229\u7528\u5929\u7ebf\u4e4b\u95f4\u7684\u72ec\u7acb\u6027\u6765\u5b9e\u73b0\u591a\u4e2a\u7528\u6237\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u4fe1\u606f\u5e8f\u5217\u88ab\u5206\u6210\u591a\u4e2a\u5b50\u5e8f\u5217\uff0c\u79f0\u4e3a\u89e3\u590d\u7528\uff0c\u7136\u540e\u5728\u76f8\u540c\u7684\u9891\u7387\u5e26\u548c\u65f6\u9699\u4e0b\uff0c\u5c06\u8fd9\u4e9b\u5b50\u5e8f\u5217\u540c\u65f6\u8c03\u5236\u5e76\u4f20\u8f93\u5230\u591a\u4e2a\u53d1\u5c04\u5929\u7ebf\u4e0a\u3002\u5728\u63a5\u6536\u7aef\uff0c\u4f7f\u7528\u5e72\u6270\u6d88\u9664\u6280\u672f\u5bf9\u63a5\u6536\u4fe1\u53f7\u8fdb\u884c\u5206\u79bb\u3002<\/p>\n\n\n\n

\u3000\u3000\u7a7a\u95f4\u590d\u7528\u6280\u672f\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u7cfb\u7edf\u7684\u4f20\u8f93\u901f\u7387\u548c\u9891\u8c31\u5229\u7528\u7387\u3002\u4f8b\u5982\uff0c\u5728LTE\u7cfb\u7edf\u4e2d\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f\u901a\u8fc7\u591a\u79cd\u65b9\u5f0f\uff0c\u5728\u7a7a\u95f4\u7ef4\u5ea6\u4e0a\u5b9e\u73b0\u8d44\u6e90\u7684\u6709\u6548\u5229\u7528\uff0c\u4ee5\u4fbf\u5c06\u591a\u4e2a\u7528\u6237\u7684\u4fe1\u53f7\u8fdb\u884c\u5206\u79bb\u4f20\u8f93\u3002\u6b64\u5916\uff0c\u7a7a\u95f4\u590d\u7528\u8fd8\u53ef\u4ee5\u4e0e\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u7a7a\u95f4\u590d\u7528\u6280\u672f\u7684\u5e94\u7528\u4e0d\u4ec5\u9650\u4e8e\u5355\u7528\u6237\u901a\u4fe1\uff0c\u8fd8\u53ef\u4ee5\u5728\u591a\u7528\u6237\u5236\u5f0f\u4e0b\u5e94\u7528\uff0c\u4e5f\u79f0\u4e3a\u7a7a\u5206\u591a\u5740(SDMA)\u3002\u4f8b\u5982\uff0c\u5728\u4e24\u4e2a\u79fb\u52a8\u7528\u6237\u540c\u65f6\u5728\u76f8\u540c\u7684\u65e0\u7ebf\u4fe1\u9053\u4e0a\u4f20\u8f93\u5176\u5404\u81ea\u7684\u4fe1\u53f7\u65f6\uff0c\u57fa\u7ad9\u53ef\u4ee5\u4f7f\u7528\u7a7a\u95f4\u590d\u7528\u6280\u672f\u5206\u79bb\u4e24\u4e2a\u4fe1\u53f7\u3002<\/p>\n\n\n\n

\u3000\u3000\u603b\u4e4b\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f\u901a\u8fc7\u5728\u4e0d\u589e\u52a0\u9891\u8c31\u5e26\u5bbd\u7684\u60c5\u51b5\u4e0b\uff0c\u5229\u7528\u591a\u5929\u7ebf\u7cfb\u7edf\u548c\u591a\u5f84\u4f20\u64ad\u7684\u7279\u6027\uff0c\u5b9e\u73b0\u591a\u4e2a\u72ec\u7acb\u6570\u636e\u6d41\u7684\u540c\u65f6\u4f20\u8f93\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u7684\u4f20\u8f93\u901f\u7387\u548c\u9891\u8c31\u5229\u7528\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001 \u7a7a\u95f4\u590d\u7528\u6280\u672f\u5728\u4e0d\u540c\u65e0\u7ebf\u901a\u4fe1\u6807\u51c6(\u5982LTE\u30015G)\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u548c\u4f18\u5316\u7b56\u7565\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

\u3000\u3000\u7a7a\u95f4\u590d\u7528\u6280\u672f\u5728\u4e0d\u540c\u7684\u65e0\u7ebf\u901a\u4fe1\u6807\u51c6\u4e2d\u6709\u7740\u4e0d\u540c\u7684\u5b9e\u73b0\u548c\u4f18\u5316\u7b56\u7565\u3002\u4ee5\u4e0b\u662fLTE\u548c5G\u4e2d\u7a7a\u95f4\u590d\u7528\u6280\u672f\u7684\u5177\u4f53\u5b9e\u73b0\u548c\u4f18\u5316\u7b56\u7565\uff1a<\/p>\n\n\n\n

\u3000\u30001. LTE\u4e2d\u7684\u7a7a\u95f4\u590d\u7528\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000\u5355\u5c42\u548c\u53cc\u5c42\u7a7a\u95f4\u590d\u7528<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LTE\u6807\u51c6\u8be6\u7ec6\u63cf\u8ff0\u4e86\u5355\u5c42\u548c\u53cc\u5c42\u7a7a\u95f4\u590d\u7528\u7684\u6027\u80fd\u8981\u6c42\u548c\u914d\u7f6e\u7ec6\u8282\u3002\u4f8b\u5982\uff0c\u6587\u6863\u4e2d\u63d0\u5230\u7684TM3\u3001TM4\u7b49\u4f20\u8f93\u6a21\u5f0f\u652f\u6301\u4e0d\u540c\u5c42\u6570\u7684\u7a7a\u95f4\u590d\u7528\uff0c\u4ee5\u63d0\u9ad8\u6570\u636e\u901f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u7279\u5b9a\u573a\u666f\u4e0b\uff0c\u5982\u4f7f\u75283\u5c42\u590d\u7528\u4e0e4\u4e2a\u53d1\u5c04\u5929\u7ebf\u7aef\u53e3\u65f6\uff0c\u6587\u6863\u89c4\u5b9a\u4e86\u5177\u4f53\u7684\u6d4b\u8bd5\u53c2\u6570\u548c\u6027\u80fd\u8981\u6c42\uff0c\u786e\u4fdd\u5728\u591a\u7528\u6237\u548c\u591a\u5929\u7ebf\u73af\u5883\u4e0b\u8fbe\u5230\u9884\u671f\u7684\u6027\u80fd\u6c34\u5e73\u3002<\/p>\n\n\n\n

\u3000\u3000\u7a7a\u65f6\u5206\u7ec4\u7801\u548cMIMO\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000LTE\u4e2d\u91c7\u7528\u4e86\u7a7a\u65f6\u5206\u7ec4\u7801(STBC)\u548c\u591a\u8f93\u5165\u591a\u8f93\u51fa(MIMO)\u6280\u672f\uff0c\u901a\u8fc7BLAST(\u6ce2\u675f\u8d4b\u5f62\u7a7a\u65f6\u4f20\u8f93)\u6280\u672f\u5b9e\u73b0\u7a7a\u95f4\u590d\u7528\u589e\u76ca\u3002BLAST\u6280\u672f\u5229\u7528\u6bcf\u5bf9\u53d1\u9001\u548c\u63a5\u6536\u5929\u7ebf\u4e0a\u7684\u4fe1\u53f7\u7279\u6027\uff0c\u5728\u63a5\u6536\u7aef\u8fdb\u884c\u6062\u590d\uff0c\u4ece\u800c\u63d0\u9ad8\u94fe\u8def\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u6ce2\u675f\u6210\u5f62\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6ce2\u675f\u6210\u5f62\u6280\u672f\u5728LTE\u4e2d\u4e5f\u5f97\u5230\u4e86\u5e94\u7528\uff0c\u901a\u8fc7\u5b9a\u5411\u6ce2\u675f\u6765\u589e\u5f3a\u4fe1\u53f7\u8986\u76d6\u8303\u56f4\u548c\u51cf\u5c11\u5e72\u6270\u3002<\/p>\n\n\n\n

\u3000\u30002. 5G\u4e2d\u7684\u7a7a\u95f4\u590d\u7528\u6280\u672f<\/h3>\n\n\n\n

\u3000\u3000Massive MIMO\u6280\u672f<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u30005G\u6807\u51c6\u5f15\u5165\u4e86\u5927\u89c4\u6a21MIMO(Massive MIMO)\u6280\u672f\uff0c\u901a\u8fc7\u5927\u89c4\u6a21\u5929\u7ebf\u9635\u5217\u5b9e\u73b0\u591a\u7528\u6237\u95f4\u7684\u7a7a\u95f4\u590d\u7528\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u7f51\u7edc\u7684\u9891\u8c31\u6548\u7387\u548c\u8986\u76d6\u8303\u56f4\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u7528\u6237\u5bc6\u96c6\u533a\u57df\uff0c\u901a\u8fc7MU-MIMO(\u591a\u7528\u6237\u591a\u8f93\u5165\u591a\u8f93\u51fa)\u7a7a\u5206\u590d\u7528\u7b97\u6cd5\u4f18\u5316\uff0c\u53ef\u4ee5\u589e\u52a0\u5e76\u53d1\u7528\u6237\u6570\u5e76\u63d0\u5347\u4f20\u8f93\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u6ce2\u675f\u8d4b\u5f62\u548cSDMA\uff08\u7a7a\u5206\u591a\u5740\u63a5\u5165\uff09<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u6ce2\u675f\u8d4b\u5f62\u6280\u672f\u57285G\u4e2d\u7ee7\u7eed\u88ab\u5e7f\u6cdb\u5e94\u7528\uff0c\u901a\u8fc7\u5b9a\u5411\u6ce2\u675f\u8fdb\u4e00\u6b65\u63d0\u5347\u4fe1\u53f7\u8d28\u91cf\u548c\u7f51\u7edc\u5bb9\u91cf\u3002<\/p>\n\n\n\n

\u3000\u3000\u7a7a\u5206\u590d\u7528(SDMA)\u6280\u672f\u57285G\u4e2d\u5b9e\u73b0\u4e86\u66f4\u9ad8\u6548\u7684\u65e0\u7ebf\u8d44\u6e90\u5229\u7528\uff0c\u7279\u522b\u662f\u5728\u9ad8\u5bc6\u5ea6\u7528\u6237\u73af\u5883\u4e2d\uff0c\u901a\u8fc7\u66f4\u591a\u7684\u5929\u7ebf\u6570\u8fdb\u4e00\u6b65\u53d1\u626c\u5149\u5927\u3002<\/p>\n\n\n\n

\u3000\u3000\u8054\u5408\u4f18\u5316\u7b56\u7565<\/strong>\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u67d0\u4e9b\u5e94\u7528\u573a\u666f\u4e0b\uff0c\u5982FTTR(\u5149\u7ea4\u5230\u623f\u95f4)\u573a\u666f\u4e2d\uff0c\u7814\u7a76\u4e86\u534f\u540c\u7a7a\u95f4\u590d\u7528\u4e0e\u901f\u7387\u63a7\u5236\u7684\u8054\u5408\u4f18\u5316\uff0c\u65e8\u5728\u63d0\u5347\u7f51\u7edc\u6027\u80fd\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u89e3\u51b3\u7a7a\u95f4\u590d\u7528\u6280\u672f\u4e2d\u7684\u5e72\u6270\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u9ad8\u5bc6\u5ea6\u7528\u6237\u73af\u5883\u4e2d?<\/h2>\n\n\n\n

\u3000\u3000\u5728\u9ad8\u5bc6\u5ea6\u7528\u6237\u73af\u5883\u4e2d\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f(Spatial Reuse)\u9762\u4e34\u5e72\u6270\u95ee\u9898\uff0c\u4f46\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u65b9\u6cd5\u6765\u89e3\u51b3\u3002\u9996\u5148\uff0cWi-Fi 6\u5f15\u5165\u4e86BSS Coloring\u6280\u672f\uff0c\u901a\u8fc7\u5728\u5e27\u4e2d\u589e\u52a06\u4e2abit\u7684\u6807\u8bc6\u7b26\u6765\u533a\u5206\u4e0d\u540cAP\u76f8\u540c\u4fe1\u9053\u7684BSS\uff0c\u4ece\u800c\u51cf\u5c11\u540c\u9891\u5e72\u6270\u3002\u6b64\u5916\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f(SR)\u53ef\u4ee5\u5b9e\u73b0\u4fe1\u9053\u590d\u7528\uff0c\u7f13\u89e3\u5b9e\u9645\u7f51\u7edc\u90e8\u7f72\u4e2d\u7684\u540c\u9891\u5e72\u6270\u5f71\u54cd\uff0c\u63d0\u5347\u63a5\u5165\u5bb9\u91cf\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u53e6\u5916\uff0cOFDMA\u6280\u672f\u4e5f\u88ab\u7528\u4e8e\u51cf\u5c11\u591a\u7528\u6237\u7a7a\u53e3\u8d44\u6e90\u51b2\u7a81\u53ca\u9000\u907f\u5e26\u6765\u7684\u5ef6\u65f6\uff0c\u63d0\u9ad8\u591a\u7528\u6237\u573a\u666f\u4e0b\u7684\u7528\u6237\u4f53\u9a8c\u3002\u540c\u65f6\uff0c\u652f\u6301OFDMA\u548cMU-MIMO(\u591a\u7528\u6237\u591a\u8fdb\u591a\u51fa)\u6280\u672f\u7684\u8bbe\u5907\u53ef\u4ee5\u5728\u9ad8\u5bc6\u5ea6\u90e8\u7f72\u573a\u666f\u4e0b\u63d0\u5347\u5e76\u53d1\u80fd\u529b\u548c\u7ec8\u7aef\u5e73\u5747\u901f\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e3a\u4e86\u8fdb\u4e00\u6b65\u4f18\u5316\u9ad8\u5bc6\u5ea6\u73af\u5883\u4e0b\u7684\u6027\u80fd\uff0c\u53ef\u4ee5\u91c7\u7528\u6ce2\u675f\u5f62\u6210\u548c\u5b50\u7a7a\u95f4\u65b9\u6cd5\u7b49\u9ad8\u7ea7\u6280\u672f\u6765\u63d0\u9ad8\u6297\u5e72\u6270\u80fd\u529b\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001 \u7a7a\u95f4\u590d\u7528\u4e0e\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7ed3\u5408\u4f7f\u7528\u7684\u6848\u4f8b\u7814\u7a76\u6709\u54ea\u4e9b\uff0c\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027?<\/h2>\n\n\n\n

\u3000\u3000\u7a7a\u95f4\u590d\u7528\u4e0e\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7ed3\u5408\u4f7f\u7528\u7684\u6848\u4f8b\u7814\u7a76\u4e3b\u8981\u96c6\u4e2d\u5728MIMO(\u591a\u8f93\u5165\u591a\u8f93\u51fa)\u7cfb\u7edf\u4e2d\uff0c\u8fd9\u79cd\u7ed3\u5408\u65b9\u5f0f\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5177\u4f53\u7684\u6848\u4f8b\u7814\u7a76\u53ca\u5176\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u53ef\u9760\u6027\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\u3000\u3000\u5728\u534f\u4f5cMIMO\u7cfb\u7edf\u4e2d\uff0c\u5355\u5929\u7ebf\u7ec8\u7aef\u901a\u8fc7\u76f8\u4e92\u534f\u4f5c\u5f62\u6210\u865a\u62df\u591a\u5929\u7ebf\u53d1\u5c04\u9635\u5217\uff0c\u5e76\u7ed3\u5408\u63a5\u6536\u7aef\u57fa\u7ad9\u7684\u591a\u5929\u7ebf\u63a5\u6536\uff0c\u5b9e\u73b0\u5206\u5e03\u5f0f\u7a7a\u65f6\u7f16\u7801(D-STBC)\u3002\u8fd9\u79cd\u65b9\u6848\u5229\u7528\u4e86\u7a7a\u95f4\u5206\u96c6\u589e\u76ca\u548c\u7f16\u7801\u589e\u76ca\uff0c\u6709\u6548\u62b5\u6297\u591a\u5f84\u8870\u843d\u5e76\u63d0\u9ad8\u7cfb\u7edf\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u5206\u5e03\u5f0f\u5782\u76f4\u578b\u8d1d\u5c14\u5b9e\u9a8c\u5ba4\u5206\u5c42\u7a7a\u65f6\u7f16\u7801(D-VBLAST)\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u5e76\u4e14\u8bd1\u7801\u7b97\u6cd5\u590d\u6742\u5ea6\u968f\u7740\u6570\u636e\u901f\u7387\u7684\u589e\u52a0\u7ebf\u6027\u5347\u9ad8\uff0c\u9002\u5408\u4e8e\u76f8\u5bf9\u8f83\u9ad8\u4fe1\u566a\u6bd4(SNR)\u7684\u534f\u4f5cMIMO\u4f20\u8f93\u7cfb\u7edf\u3002<\/p>\n\n\n\n

\u3000\u3000\u5728\u6b63\u4ea4\u9891\u5206\u590d\u7528(OFDM)\u7cfb\u7edf\u4e2d\uff0c\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u88ab\u5e94\u7528\u4e8e\u63d0\u9ad8\u9891\u8c31\u6548\u7387\u548c\u5bb9\u91cf\u3002STBC-OFDM\u901a\u8fc7\u4f7f\u7528\u591a\u4e2a\u53d1\u5c04\u5929\u7ebf\u548c\u7a7a\u65f6\u7f16\u7801\u6765\u5b9e\u73b0\u4fe1\u53f7\u7684\u590d\u7528\u548c\u7a7a\u95f4\u96c6\u805a\u589e\u76ca\uff0c\u4ece\u800c\u63d0\u9ad8\u4f20\u8f93\u901f\u7387\u548c\u53ef\u9760\u6027\u3002\u4f8b\u5982\uff0cAlamouti\u7a7a\u65f6\u7f16\u7801\u65b9\u6848\u91c7\u7528\u4e24\u4e2a\u53d1\u5c04\u5929\u7ebf\uff0c\u5728\u53d1\u9001\u7aef\u91c7\u7528\u6b63\u4ea4\u7f16\u7801\u65b9\u5f0f\u5e76\u4ee5\u56fa\u5b9a\u65f6\u95f4\u95f4\u9694\u53d1\u9001\uff0c\u5728\u63a5\u6536\u7aef\u91c7\u7528\u76f8\u4f4d\u5408\u5e76\u7684\u65b9\u5f0f\u83b7\u5f97\u8f83\u597d\u7684\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u57285G\u901a\u4fe1\u73af\u5883\u4e2d\uff0cMIMO\u6280\u672f\u901a\u8fc7\u5728\u4e0d\u540c\u5929\u7ebf\u548c\u65f6\u95f4\u70b9\u4f20\u8f93\u76f8\u540c\u6570\u636e\u7684\u591a\u4e2a\u526f\u672c\uff0c\u5b9e\u73b0\u7a7a\u95f4\u65f6\u7f16\u7801\u6280\u672f\uff0c\u63d0\u4f9b\u66f4\u9ad8\u7684\u591a\u6837\u6027\uff0c\u589e\u5f3a\u4f20\u8f93\u9c81\u68d2\u6027\u3002\u8fd9\u79cd\u6280\u672f\u5c24\u5176\u9002\u7528\u4e8e\u9700\u8981\u8d85\u53ef\u9760\u901a\u4fe1\u7684\u573a\u666f\uff0c\u5e76\u4e14\u53ef\u4ee5\u4e0e\u6ce2\u675f\u6210\u5f62\u7b49\u5176\u4ed6\u6280\u672f\u7ed3\u5408\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u7cfb\u7edf\u6027\u80fd\u3002<\/p>\n\n\n\n

\u3000\u3000\u8fd9\u4e9b\u6848\u4f8b\u8868\u660e\uff0c\u7a7a\u95f4\u590d\u7528\u4e0e\u7a7a\u65f6\u7f16\u7801\u6280\u672f\u7684\u7ed3\u5408\u4e0d\u4ec5\u80fd\u591f\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u901f\u7387\uff0c\u8fd8\u80fd\u901a\u8fc7\u589e\u52a0\u5206\u96c6\u589e\u76ca\u548c\u7f16\u7801\u589e\u76ca\u6765\u663e\u8457\u63d0\u9ad8\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n

\u3000\u3000\u56db\u3001 \u5728\u591a\u7528\u6237\u5236\u5f0f\u4e0b\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f(SDMA)\u7684\u5e94\u7528\u6548\u679c\u548c\u9650\u5236\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

\u3000\u3000\u5728\u591a\u7528\u6237\u5236\u5f0f\u4e0b\uff0c\u7a7a\u95f4\u590d\u7528\u6280\u672f(SDMA)\u7684\u5e94\u7528\u6548\u679c\u548c\u9650\u5236\u5982\u4e0b\uff1a<\/p>\n\n\n\n

\u3000\u30001. \u5e94\u7528\u6548\u679c\uff1a<\/h3>\n\n\n\n
    \n
  • \u3000\u3000\u5bb9\u91cf\u63d0\u5347<\/strong>\uff1aSDMA\u901a\u8fc7\u7a7a\u95f4\u5206\u590d\u7528\u5b9e\u73b0\u5bb9\u91cf\u63d0\u5347\uff0c\u5141\u8bb8\u591a\u4e2a\u7528\u6237\u540c\u65f6\u4f20\u8f93\u5e76\u7531\u57fa\u7ad9\u8054\u5408\u89e3\u7801\uff0c\u4ece\u800c\u63d0\u9ad8\u7cfb\u7edf\u5bb9\u91cf\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u4fe1\u9053\u5229\u7528\u6548\u7387<\/strong>\uff1aSDMA\u5229\u7528\u7a7a\u95f4\u5206\u5272\u7684\u65b9\u6cd5\uff0c\u4f7f\u5f97\u591a\u4e2a\u7528\u6237\u53ef\u4ee5\u5728\u76f8\u540c\u7684\u9891\u7387\u8d44\u6e90\u4e0a\u8fdb\u884c\u901a\u4fe1\uff0c\u663e\u8457\u63d0\u9ad8\u4e86\u4fe1\u9053\u7684\u5229\u7528\u6548\u7387\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u9ad8\u4fe1\u566a\u6bd4\uff08SNR\uff09\u4e0b\u7684\u6027\u80fd\u4f18\u52bf<\/strong>\uff1a\u5728\u9ad8SNR\u6761\u4ef6\u4e0b\uff0cSDMA\u5141\u8bb8\u6700\u591an\u4e2a\u7528\u6237\u540c\u65f6\u4ee5\u5355\u4e00\u81ea\u7531\u5ea6\u4f20\u8f93\uff0c\u6027\u80fd\u663e\u8457\u4f18\u4e8e\u6b63\u4ea4\u591a\u5740\u63a5\u5165(OMA)\u3002<\/li>\n\n\n\n
  • \u3000\u3000\u591a\u7528\u6237\u5206\u96c6<\/strong>\uff1aSDMA\u901a\u8fc7\u5c06\u7528\u6237\u53e0\u52a0\u5230\u76f8\u540c\u7684\u65f6\u9699\u8d44\u6e90\u4e2d\u5e76\u5229\u7528\u7a7a\u95f4\u7279\u6027\u6765\u5b9e\u73b0\u591a\u7528\u6237\u5206\u96c6\uff0c\u4ece\u800c\u66f4\u597d\u5730\u5904\u7406\u4fe1\u9053\u8d28\u91cf\u548c\u4fe1\u53f7\u566a\u58f0\u6bd4\u7b49\u95ee\u9898\u3002<\/li>\n<\/ul>\n\n\n\n

    \u3000\u30002. \u9650\u5236\uff1a<\/h3>\n\n\n\n
      \n
    • \u3000\u3000\u8ba1\u7b97\u590d\u6742\u6027<\/strong>\uff1a\u7531\u4e8e\u76f4\u63a5\u9884\u7f16\u7801\u7684\u8ba1\u7b97\u590d\u6742\u6027\u8f83\u9ad8\uff0cSDMA\u5728\u53d1\u5c04\u673a\u8bbe\u8ba1\u4e2d\u901a\u5e38\u9700\u8981\u91c7\u7528\u7b80\u5316\u7684\u65b9\u6cd5\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u4fe1\u9053\u72b6\u6001\u4fe1\u606f\uff08CSI\uff09\u7684\u83b7\u53d6\u96be\u5ea6<\/strong>\uff1a\u5728\u5feb\u901f\u79fb\u52a8\u7528\u6237\u548c\u5feb\u901f\u53d8\u5316\u4fe1\u9053\u7684\u7f51\u7edc\u4e2d\uff0c\u57fa\u7ad9\u96be\u4ee5\u83b7\u5f97\u5b8c\u7f8e\u7684CSI\uff0c\u8fd9\u4f7f\u5f97SDMA\u7684\u5b9e\u73b0\u53d8\u5f97\u5177\u6709\u6311\u6218\u6027\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u7528\u6237\u7a7a\u95f4\u7279\u5f81\u76f8\u5173\u5ea6\u9ad8\u65f6\u7684\u5931\u6548<\/strong>\uff1a\u5f53\u591a\u4e2a\u7528\u6237\u7684\u7a7a\u95f4\u7279\u5f81\u76f8\u5173\u5ea6\u8f83\u9ad8\u65f6\uff0cSDMA\u65e0\u6cd5\u6709\u6548\u533a\u5206\u8fd9\u4e9b\u7528\u6237\uff0c\u4ece\u800c\u4e0d\u518d\u9002\u7528\u3002<\/li>\n\n\n\n
    • \u3000\u3000\u53d1\u5c04\u5929\u7ebf\u6570\u91cf\u9650\u5236<\/strong>\uff1a\u5728MIMO\u4e0b\u884c\u901a\u4fe1\u7cfb\u7edf\u4e2d\uff0c\u57fa\u7ad9\u80fd\u591f\u540c\u65f6\u53d1\u9001\u7684\u72ec\u7acb\u6570\u636e\u6d41\u4e2a\u6570\u4e0d\u80fd\u8d85\u8fc7\u5176\u53d1\u5c04\u5929\u7ebf\u6570\uff0c\u56e0\u6b64\u5728\u7528\u6237\u6570\u91cf\u8f83\u591a\u7684\u60c5\u51b5\u4e0b\uff0c\u57fa\u7ad9\u53ea\u80fd\u8c03\u5ea6\u4e00\u90e8\u5206\u7528\u6237\u8fdb\u884c\u901a\u4fe1\u3002<\/li>\n<\/ul>\n\n\n\n

      \u3000\u3000\u4e94\u3001 \u7a7a\u95f4\u590d\u7528\u6280\u672f\u7684\u6700\u65b0\u7814\u7a76\u8fdb\u5c55\u548c\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n

      \u3000\u3000\u7a7a\u95f4\u590d\u7528\u6280\u672f(Spatial Division Multiplexing, SDM)\u662f\u8fd1\u5e74\u6765\u5149\u7ea4\u901a\u4fe1\u9886\u57df\u7684\u91cd\u8981\u7814\u7a76\u65b9\u5411\u4e4b\u4e00\uff0c\u65e8\u5728\u901a\u8fc7\u5229\u7528\u5149\u7ea4\u7684\u7a7a\u95f4\u7ef4\u5ea6\u6765\u63d0\u5347\u5355\u6839\u5149\u7ea4\u7684\u4f20\u8f93\u5bb9\u91cf\u3002\u4ee5\u4e0b\u662f\u5173\u4e8e\u7a7a\u95f4\u590d\u7528\u6280\u672f\u7684\u6700\u65b0\u7814\u7a76\u8fdb\u5c55\u548c\u672a\u6765\u53d1\u5c55\u8d8b\u52bf\u7684\u8be6\u7ec6\u5206\u6790\uff1a<\/p>\n\n\n\n

      \u3000\u30001. \u6700\u65b0\u7814\u7a76\u8fdb\u5c55<\/h3>\n\n\n\n

      \u3000\u3000\u591a\u82af\u5149\u7ea4\u548c\u5c11\u6a21\u5149\u7ea4\u590d\u7528\u6280\u672f\u662f\u5f53\u524d\u7a7a\u5206\u590d\u7528\u6280\u672f\u7684\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e4b\u4e00\u3002\u8fd9\u4e9b\u6280\u672f\u901a\u8fc7\u5728\u5149\u7ea4\u4e2d\u5f15\u5165\u591a\u4e2a\u82af\u6216\u6a21\u6001\uff0c\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u5355\u6839\u5149\u7ea4\u7684\u4f20\u8f93\u5bb9\u91cf\u3002\u4f8b\u5982\uff0c\u6587\u732e\u4e2d\u63d0\u5230\u4f7f\u7528\u5c11\u6570\u6a21\u5f0f\u591a\u82af\u5149\u7ea4\u8fdb\u884c\u8d85\u9ad8\u5bc6\u5ea6\u7a7a\u95f4\u590d\u7528\u7684\u7814\u7a76\u3002\u6b64\u5916\uff0c\u5c11\u6a21\u63ba\u94d2\u5149\u7ea4\u53ca\u5176\u653e\u5927\u5668\u4e5f\u88ab\u8ba4\u4e3a\u662f\u5b9e\u73b0\u957f\u8ddd\u79bb\u4f20\u8f93\u7684\u5173\u952e\u5668\u4ef6\u3002<\/p>\n\n\n\n

      \u3000\u3000\u8f68\u9053\u89d2\u52a8\u91cf\u6a21\u5f0f\u590d\u7528\u6280\u672f\u5229\u7528\u5149\u6ce2\u7684\u8f68\u9053\u89d2\u52a8\u91cf\u6765\u589e\u52a0\u4f20\u8f93\u5bb9\u91cf\u3002\u8fd9\u79cd\u6280\u672f\u5df2\u7ecf\u5728\u5b9e\u9a8c\u4e2d\u5b9e\u73b0\u4e86\u592a\u6bd4\u7279\u7ea7\u7684\u4f20\u8f93\u901f\u7387\uff0c\u663e\u793a\u51fa\u5de8\u5927\u7684\u6f5c\u529b\u3002<\/p>\n\n\n\n

      \u3000\u3000\u4e3a\u4e86\u5b9e\u73b0SDM\u7cfb\u7edf\u7684\u6210\u672c\u8282\u7701\uff0c\u7814\u7a76\u4eba\u5458\u6b63\u5728\u5f00\u53d1\u5b8c\u5168\u96c6\u6210\u7684SDM\u653e\u5927\u5668\u548c\u5149\u9694\u79bb\u5668\u3002\u8fd9\u4e9b\u8bbe\u5907\u901a\u8fc7\u6539\u8fdb\u5149\u5b66\u7ec4\u4ef6\u5171\u4eab\u548c\u663e\u8457\u7684\u8bbe\u5907\u96c6\u6210\uff0c\u4ee5\u5b9e\u73b0\u9884\u671f\u7684\u6210\u672c\u964d\u4f4e\u6548\u76ca\u3002<\/p>\n\n\n\n

      \u3000\u3000\u7a7a\u95f4\u6a21\u5f0f\u590d\u7528\u89e3\u590d\u7528\u6280\u672f\u4e5f\u5728\u4e0d\u65ad\u53d1\u5c55\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u89e3\u51b3\u5bb9\u91cf\u5371\u673a\u3002\u6b64\u5916\uff0c\u57fa\u4e8e\u7a7a\u5206\u590d\u7528\u6280\u672f\u7684\u672a\u6765\u6570\u636e\u4f20\u8f93\u5bb9\u91cf\u63d0\u5347\u4e5f\u5f97\u5230\u4e86\u5e7f\u6cdb\u5173\u6ce8\u3002<\/p>\n\n\n\n

      \u3000\u30002. \u672a\u6765\u53d1\u5c55\u8d8b\u52bf<\/h3>\n\n\n\n

      \u3000\u3000\u968f\u7740\u4e0b\u4e00\u4ee3\u79fb\u52a8\u5bbd\u5e26\u6280\u672f\u7684\u53d1\u5c55\uff0c\u4eba\u4eec\u5bf9\u9ad8\u6570\u636e\u901f\u7387\u7684\u5e94\u7528\u9700\u6c42\u4e0d\u65ad\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u8fdb\u4e00\u6b65\u63d0\u9ad8\u5355\u6839\u5149\u7ea4\u7684\u4f20\u8f93\u5bb9\u91cf\u6210\u4e3a\u7814\u7a76\u7684\u91cd\u70b9\u3002\u57fa\u4e8e\u5c11\u6a21\u5149\u7ea4\u7684\u6a21\u5206\u590d\u7528\u6280\u672f\u4f5c\u4e3a\u7a7a\u5206\u590d\u7528\u6280\u672f\u7684\u4e00\u79cd\uff0c\u53ef\u8fdb\u4e00\u6b65\u63d0\u9ad8\u5355\u6839\u5149\u7ea4\u7684\u4f20\u8f93\u5bb9\u91cf\uff0c\u5e76\u5f97\u5230\u4e86\u6df1\u5165\u7814\u7a76\u3002<\/p>\n\n\n\n

      \u3000\u3000\u5c3d\u7ba1\u76ee\u524d\u90e8\u4ef6\u7ea7\u590d\u7528\u4e3a\u4e3b\uff0c\u4f46\u672a\u6765\u5c06\u671d\u7740\u7cfb\u7edf\u7ea7\u56de\u6536\u590d\u7528\u65b9\u5411\u53d1\u5c55\u3002\u8fd9\u9700\u8981\u7a81\u7834\u603b\u4f53\u8bbe\u8ba1\u3001\u7ed3\u6784\u8bbe\u8ba1\u3001\u6750\u6599\u9009\u7528\u3001\u63a7\u5236\u7cfb\u7edf\u96c6\u6210\u7b49\u5171\u6027\u5173\u952e\u6280\u672f\u3002<\/p>\n\n\n\n

      \u3000\u3000\u5c3d\u7ba1SDM\u6280\u672f\u5728\u5b9e\u9a8c\u5ba4\u4e2d\u53d6\u5f97\u4e86\u663e\u8457\u8fdb\u5c55\uff0c\u4f46\u5728\u5b9e\u9645\u90e8\u7f72\u4e2d\u5c1a\u672a\u5145\u5206\u8003\u8651\u5176\u771f\u6b63\u7684\u6210\u672c\u8282\u7701\u6f5c\u529b\u3002\u672a\u6765\u9700\u8981\u66f4\u597d\u5730\u7406\u89e3\u5728\u591a\u4e2a\u901a\u9053\u4e2d\u5171\u4eab\u5355\u4e2a\u8bbe\u5907\u7684\u610f\u4e49\uff0c\u5e76\u63a2\u7d22\u5982\u4f55\u901a\u8fc7\u66f4\u5bc6\u96c6\u7684\u6536\u53d1\u5668\u96c6\u6210\u6765\u5b9e\u73b0\u9884\u671f\u7684\u6210\u672c\u964d\u4f4e\u6548\u76ca\u3002<\/p>\n\n\n\n

      \u3000\u3000\u7a7a\u95f4\u4e0e\u6a21\u5f0f\u7684\u591a\u7ef4\u5ea6\u590d\u7528\u88ab\u8ba4\u4e3a\u662f\u89e3\u51b3\u672a\u6765\u6570\u636e\u4f20\u8f93\u5bb9\u91cf\u5371\u673a\u7684\u6709\u6548\u624b\u6bb5\u3002\u7406\u8bba\u4e0a\uff0c\u8fd9\u79cd\u6280\u672f\u53ef\u4ee5\u5728\u539f\u6765\u7684\u57fa\u7840\u4e0a\u5c06\u5355\u6839\u5149\u7ea4\u7684\u4f20\u8f93\u5bb9\u91cf\u63d0\u5347\u6570\u5341\u500d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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