\u4ec0\u4e48\u662fOFDMA\uff1f<\/strong><\/div>\n
OFDMA\uff08\u6b63\u4ea4\u9891\u5206\u591a\u5740\uff09\u5141\u8bb8\u5230AP\u7684\u5355\u4e2a\u4f20\u8f93\u6216\u6765\u81eaAP\u7684\u5355\u4e2a\u4f20\u8f93\u5305\u62ec\u5230\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u6570\u636e\uff1a\u5bf9\u4e8e\u4e0b\u884c\u94fe\u8def\uff0c\u63a5\u5165\u70b9\u540c\u65f6\u4f7f\u7528RF\u4fe1\u9053\u5185\u7684\u5b50\u8f7d\u6ce2\u7ec4\uff0c\u800c\u4e4b\u524d\u5b83\u5c06\u5177\u6709\u4ee5\u8fde\u7eed\u7684\u4e00\u7cfb\u5217\u6570\u636e\u5305\u53d1\u9001\u6570\u636e\uff0c\u83b7\u53d6\u6574\u4e2aRF\u4fe1\u9053\u5e26\u5bbd\u3002\u5728\u4e0a\u884c\u94fe\u8def\u65b9\u5411\u4e0a\uff0c\u51e0\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u53d1\u9001\uff0c\u5b83\u4eec\u7684\u4fe1\u53f7\u5230\u8fbe\u4e0d\u540c\u5b50\u8f7d\u6ce2\u4e0a\u7684\u63a5\u5165\u70b9\uff0c\u56e0\u6b64\u5b83\u4eec\u53ef\u4ee5\u5e76\u884c\u63a5\u6536\u3002\u51cf\u5c11\u62a5\u5934\u548c\u4e89\u7528\u5f00\u9500\u53ef\u63d0\u9ad8\u6548\u7387\uff0c\u5c0f\u6570\u636e\u5305\u541e\u5410\u91cf\u660e\u663e\u66f4\u597d\uff0c\u4f46OFDMA\u771f\u6b63\u7684\u795e\u5947\u4e4b\u5904\u5728\u4e8e\u5bf9\u5355\u4e2a\u4f20\u8f93\u7684\u5f3a\u5927\u63a7\u5236\u3002
\nWi-Fi\u4f20\u8f93\u662f\u8bb8\u591a\u53c2\u6570\u4e4b\u95f4\u7684\u590d\u6742\u4ea4\u4e92\uff0c\u5305\u62ec\u4f20\u8f93\u6bd4\u7279\u7387\uff0c\u4f20\u8f93\u529f\u7387\uff0c\u63a5\u6536\u7075\u654f\u5ea6\u548c\u566a\u58f0\u6c34\u5e73\uff0c\u4fe1\u9053\u5e26\u5bbd\u7b49\u3002OFDMA\u4e3a\u6bcf\u4e2a\u4f20\u8f93\u548c\u6bcf\u4e2a\u5ba2\u6237\u63d0\u4f9b\u4f18\u5316\u8fd9\u4e9b\u53c2\u6570\u7684\u673a\u4f1a\uff0c\u7136\u540e\u5c06\u5b83\u4eec\u5206\u7ec4\u4ee5\u4e0d\u540c\u7684\u7ec4\u5408\u4ee5\u83b7\u5f97\u6700\u4f73\u6548\u7387\u548c\u6027\u80fd\u3002
\n\u9996\u5148\uff0c\u63a5\u5165\u70b9\u53ef\u4ee5\u9009\u62e9\u7acb\u5373\u4f20\u8f93\u54ea\u4e9b\u6570\u636e\u5305\uff0c\u54ea\u4e9b\u6570\u636e\u5305\u4e0d\u662f\u65f6\u95f4\u654f\u611f\u7684\uff0c\u5e76\u4e14\u53ef\u4ee5\u7a0d\u540e\u53d1\u9001\uff08\u8fd9\u4ec5\u5728\u7f51\u7edc\u6d41\u91cf\u63a5\u8fd1\u5bb9\u91cf\u65f6\u624d\u9700\u8981\uff09\u3002\u4f7f\u7528802.11ax\uff0c\u5b83\u53ef\u4ee5\u67e5\u770b\u5176\u6570\u636e\u5305\u7f13\u51b2\u533a\u5e76\u4e3a\u6bcf\u6b21\u4f20\u8f93\u9009\u62e9\u6570\u636e\u5305\u7ec4 - \u4f8b\u5982\uff0c\u5b83\u53ef\u80fd\u9009\u62e9\u4f7f\u7528\u8bb8\u591a\u5c0f\u7684\u5b50\u4fe1\u9053\u5c06\u8bb8\u591a\u77ed\u6570\u636e\u5305\u5206\u7ec4\u5230\u5355\u4e2a\u4f20\u8f93\u4e2d\uff0c\u800c\u8f83\u957f\u7684\u6570\u636e\u5305\u53ef\u4ee5\u83b7\u5f97\u4f20\u8f93\u673a\u4f1a\u81ea\u5df1\uff0c\u5360\u7528\u6574\u4e2a\u9891\u9053\u5e26\u5bbd\u3002
\n\u63a5\u5165\u70b9\u8fd8\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u9009\u62e9\u6bcf\u4e2a\u4f20\u8f93\u4f7f\u7528\u7684\u6bd4\u7279\u7387\u3002\u5b83\u53ef\u4ee5\u5728\u6700\u77ed\u7684\u4f20\u8f93\u65f6\u95f4\u5185\u4f7f\u7528\u9ad8\u6bd4\u7279\u7387\uff0c\u6216\u8005\u7a0d\u5fae\u964d\u4f4e\u901f\u7387\u4ee5\u964d\u4f4e\u9519\u8bef\u548c\u91cd\u4f20\u7684\u53ef\u80fd\u6027\uff0c\u8fd9\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u53ef\u80fd\u662f\u66f4\u6709\u6548\u7684\u9009\u62e9\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5b83\u53ef\u80fd\u4f1a\u8ba4\u4e3a\u9519\u8bef\u7387\u4e3a2\uff05\u7684256-QAM\u6bd41024-QAM\u66f4\u597d\uff0c\u9519\u8bef\u7387\u4e3a15\uff05\u3002
\n\u9664\u4e86\u9519\u8bef\u548c\u91cd\u4f20\u7387\u4e4b\u5916\uff0cOFDMA\u8fd8\u5141\u8bb8\u63a5\u5165\u70b9\u63a7\u5236\u5ef6\u8fdf\u548c\u6296\u52a8\u3002\u5728802.11ax\u4e4b\u524d\uff0c\u4ee5\u9891\u7e41\u95f4\u9694\u751f\u6210\u5c0f\u6570\u636e\u5305\u7684\u5ba2\u6237\u7aef\u5fc5\u987b\u4e89\u7528\u6bcf\u4e2a\u6570\u636e\u5305\u7684\u4f20\u8f93\u673a\u4f1a\uff0c\u5982\u679c\u7f51\u7edc\u4e2d\u6709\u5176\u4ed6\u5ba2\u6237\u7aef\u53d1\u9001\u957f\u6570\u636e\u5305\uff0c\u5219\u5fc5\u987b\u5ef6\u8fdf\u4f20\u8f93\uff0c\u5bfc\u81f4\u6570\u636e\u5305\u7f13\u51b2\u548c\u6296\u52a8\u3002\u4f7f\u7528802.11ax\uff0c\u63a5\u5165\u70b9\u53ef\u4ee5\u5206\u914d\u9891\u7e41\u7684\u77ed\u4f20\u8f93\u673a\u4f1a\uff0c\u56e0\u6b64\u5b83\u53ef\u4ee5\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u5305\uff0c\u800c\u65e0\u9700\u7f13\u51b2\u5b83\u4eec\u3002\u4e3e\u4e00\u4e2a\u4f8b\u5b50\uff0c\u4f20\u7edf\u7684IP\u8bed\u97f3\u8fde\u63a5\u6bcf20\u6beb\u79d2\u4ea7\u751f\u4e00\u4e2a~160\u5b57\u8282\u7684\u6570\u636e\u5305\uff0c\u56e0\u6b64\u63a5\u5165\u70b9\u53ef\u4ee5\u786e\u4fdd\u5b83\u4e3a\u8fd9\u79cd\u6d41\u91cf\u5b89\u6392\u5468\u671f\u6027\u7684\u4f20\u8f93\u673a\u4f1a\u3002<\/p>\n
\u5728802.11ax\u591a\u7528\u6237\u6a21\u5f0f\u4e2d\uff0cAP\u63a7\u5236\u4e0a\u884c\u94fe\u8def\u4f20\u8f93<\/strong><\/div>\n
\u5728802.11ax OFDMA\u4e2d\uff0c\u63a5\u5165\u70b9\u5c06\u5ba2\u6237\u7aef\u6d41\u91cf\u5206\u914d\u7ed9\u5b50\u4fe1\u9053\uff0c\u4e0d\u4ec5\u7528\u4e8e\u4e0b\u884c\u94fe\u8def\uff0c\u8fd8\u7528\u4e8e\u4e0a\u884c\u94fe\u8def\u3002
\n\u65b0\u7684\u201c\u89e6\u53d1\u5e27\u201d\u673a\u5236\u5141\u8bb8\u63a5\u5165\u70b9\u8f6e\u8be2\u5ba2\u6237\u7aef\u4ee5\u53d1\u73b0\u4ed6\u4eec\u5e0c\u671b\u5728\u4e0a\u884c\u94fe\u8def\u4e0a\u53d1\u9001\u7684\u6d41\u91cf\u3002\u5f53\u5b83\u6536\u96c6\u89e6\u53d1\u5e27\u54cd\u5e94\u65f6\uff0c\u5b83\u4f1a\u8bbe\u8ba1\u4e00\u4e2a\u8ba1\u5212\u5e76\u5c06\u5176\u53d1\u9001\u5230\u53e6\u4e00\u4e2a\u89e6\u53d1\u5e27\u4e2d\u7684\u5ba2\u6237\u7aef\u3002\u7136\u540e\uff0c\u5ba2\u6237\u7aef\u6839\u636e\u5176\u6307\u4ee4\u6784\u5efa\u5e27\uff0c\u8bbe\u7f6e\u6570\u636e\u901f\u7387\uff0c\u53d1\u9001\u7535\u5e73\u548c\u5b50\u4fe1\u9053\uff0c\u5e76\u5c06\u6570\u636e\u5e27\u53d1\u9001\u56de\u63a5\u5165\u70b9\u3002<\/p>\n
\u591a\u7528\u6237MIMO\u63d0\u9ad8\u9891\u8c31\u6548\u7387<\/strong><\/div>\n
802.11ax\u4e2d\u7684\u53e6\u4e00\u4e2a\u591a\u7528\u6237\u673a\u5236\u662f\u591a\u7528\u6237MIMO\u3002\u5b83\u4f7f\u7528\u4e0eOFDMA\u76f8\u540c\u7684\u89e6\u53d1\u5e27\u63a7\u5236\u534f\u8bae\uff0c\u6539\u8fdb\u4e86802.11ac\u3002
\n\u591a\u7528\u6237MIMO\u672c\u8eab\u662f\u4e00\u79cd\u590d\u6742\u7684\u534f\u8bae\uff0c\u9700\u8981\u63a2\u6d4b\u5206\u7ec4\u6765\u786e\u5b9a\u591a\u5f84\u6761\u4ef6\u548c\u5206\u7ec4MIMO\u5ba2\u6237\u7aef\uff0c\u6240\u6709\u8fd9\u4e9b\u90fd\u5728\u63a5\u5165\u70b9\u7684\u63a7\u5236\u4e4b\u4e0b\u3002
\n\u5728\u4efb\u4f55\u65f6\u5019\uff0c\u63a5\u5165\u70b9\u90fd\u53ef\u4ee5\u9009\u62e9\u4f7f\u7528\u4f20\u7edf\u7684\u5355\u7528\u6237\u4f20\u8f93\uff0c\u6216\u4f7f\u7528OFDMA\u6216MIMO\u7684\u591a\u7528\u6237\u3002\u8fd9\u5f00\u8f9f\u4e86\u4ea4\u901a\u7ba1\u7406\u7684\u65b0\u7ef4\u5ea6\u3002
\n $\"\"$
\n\u4f8b\u5982\uff0c\u53ef\u4ee5\u4e25\u683c\u63a7\u5236\u5ef6\u8fdf\u548c\u6296\u52a8\u3002\u4ee5\u524d\uff0c\u5ba2\u6237\u5fc5\u987b\u4e89\u593a\u4f20\u8f93\u673a\u4f1a\uff0c\u5177\u6709\u76f8\u5bf9\u672a\u77e5\u4e14\u65e0\u6cd5\u63a7\u5236\u7684\u5ef6\u8fdf\uff0c\u8fd9\u4e9b\u5ef6\u8fdf\u53ef\u80fd\u53d7\u5230WMM\uff08\u65e0\u7ebf\u591a\u5a92\u4f53\uff09QoS\u4f18\u5148\u7ea7\u673a\u5236\u7684\u9650\u5236\u4f46\u672a\u7cbe\u786e\u5b9a\u4e49\u3002\u5229\u7528802.11ax\u591a\u7528\u6237\u63a7\u5236\uff0c\u53ef\u4ee5\u4e3a\u5ef6\u8fdf\u654f\u611f\u7684\u4e1a\u52a1\u6d41\u63d0\u4f9b\u9891\u7e41\uff0c\u53ef\u9884\u6d4b\u7684\u4f20\u8f93\u65f6\u9699\uff0c\u4ee5\u7cbe\u786e\u63a7\u5236\u6296\u52a8\u548c\u5ef6\u8fdf\u3002\u7531\u4e8eOFDMA\u5728\u4e0a\u884c\u94fe\u8def\u548c\u4e0b\u884c\u94fe\u8def\u4e0a\u63d0\u4f9b\u63a5\u5165\u70b9\u63a7\u5236\u8c03\u5236\u901f\u7387\u548c\u53d1\u5c04\u529f\u7387\uff0c\u56e0\u6b64\u5b83\u5177\u6709\u8db3\u591f\u7684\u63a7\u5236\u6765\u5b9a\u4e49\u6bcf\u4e2a\u4e1a\u52a1\u6d41\u7684QoS\u53c2\u6570\u3002
\n\u5b9e\u9645\u4e0a\uff0c802.11ax\u63a5\u5165\u70b9\u53ef\u4ee5\u5728\u4e0e\u5ba2\u6237\u7aef\u7684\u901a\u4fe1\u4e0a\u5f3a\u5236\u91c7\u7528\u7c7b\u4f3cTDM\uff08\u65f6\u5206\u590d\u7528\uff09\u7684\u7ed3\u6784\uff0c\u5b83\u53ef\u4ee5\u63a7\u5236\u6bcf\u4e2a\u4f20\u8f93\uff0c\u4e0a\u884c\u94fe\u8def\u548c\u4e0b\u884c\u94fe\u8def\u7684\u65f6\u5e8f\u548c\u53c2\u6570\u3002\u5728\u5df2\u77e5\u6d41\u91cf\u6a21\u5f0f\u5e76\u4e14\u53d8\u5316\u7f13\u6162\u7684\u60c5\u51b5\u4e0b\uff0c\u8fd9\u662f\u9891\u8c31\u6548\u7387\u6700\u6709\u6548\u7684\u65b9\u5f0f\uff1a\u5728\u7ed9\u5b9aRF\u4fe1\u9053\u5bbd\u5ea6\u4e2d\u627f\u8f7d\u7684\u6570\u636e\u91cf\u3002
\n\u5bf9\u4e8e\u8bf8\u5982\u5927\u6587\u4ef6\u4f20\u8f93\u4e4b\u7c7b\u7684\u5927\u578b\u5206\u7ec4\uff0cMU-MIMO\u66f4\u6709\u6548\uff0c\u800c\u5bf9\u4e8e\u8bf8\u5982IM\u6216\u7535\u5b50\u90ae\u4ef6\u4e4b\u7c7b\u7684\u8f83\u77ed\u5206\u7ec4\uff0cOFDMA\u5c06\u662f\u66f4\u597d\u7684\u9009\u62e9\u3002\u51b3\u5b9a\u4f7f\u7528\u54ea\u79cd\u6a21\u5f0f - \u5355\u7528\u6237\uff0cOFDMA\u6216MU-MIMO - \u53d6\u51b3\u4e8e\u63a5\u5165\u70b9\u3002<\/p>\n
\u4f7f\u7528BSS\u7740\u8272\u66f4\u597d\u5730\u91cd\u590d\u4f7f\u7528\u7a7a\u95f4<\/strong><\/div>\n
\u63a5\u5165\u70b9\u63a7\u5236\u5728802.11ax\u4e2d\u53d8\u5f97\u66f4\u52a0\u5f3a\u5927\u7684\u53e6\u4e00\u4e2a\u9886\u57df\u662f\u96c6\u4e2d\u7ba1\u7406\u6216\u5206\u79bb\u7684\u8bb8\u591a\u63a5\u5165\u70b9\u53c2\u4e0e\u201c\u7a7a\u95f4\u91cd\u7528\u201d\uff0c\u901a\u5e38\u79f0\u4e3a\u201cBSS\u7740\u8272\u201d\u3002\u6211\u4eec\u5c06\u5728\u672a\u6765\u7684\u535a\u5ba2\u4e2d\u6df1\u5165\u4ecb\u7ecd\u8fd9\u4e00\u91cd\u8981\u529f\u80fd\u3002
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