{"id":91003,"date":"2024-04-10T16:06:11","date_gmt":"2024-04-10T08:06:11","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=91003"},"modified":"2024-04-10T16:06:15","modified_gmt":"2024-04-10T08:06:15","slug":"ldbphjgjtd","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/91003.html","title":{"rendered":"LTE\u7684\u6241\u5e73\u5316\u67b6\u6784\u53ca\u7279\u70b9"},"content":{"rendered":"\n<p>\u3000\u3000<strong>LTE\u7684\u6241\u5e73\u5316\u67b6\u6784<\/strong>\u662f\u5176\u7f51\u7edc\u67b6\u6784\u7684\u4e00\u4e2a\u663e\u8457\u7279\u70b9\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u7f51\u7edc\u7ed3\u6784\u7b80\u5316<\/strong>\uff1a\u4e0e\u4f20\u7edf\u76842G\u30013G\u7f51\u7edc\u76f8\u6bd4\uff0cLTE\u91c7\u7528\u4e86\u57fa\u4e8eOFDM\u6280\u672f\u7684\u7a7a\u4e2d\u63a5\u53e3\u6280\u672f\uff0c\u5e76\u5bf9\u4f20\u7edf3G\u7684\u7f51\u7edc\u67b6\u6784\u8fdb\u884c\u4e86\u4f18\u5316\u3002\u5728LTE\u4e2d\uff0c\u63a5\u5165\u7f51E-UTRAN\u4e0d\u518d\u5305\u542bRNC(\u65e0\u7ebf\u7f51\u7edc\u63a7\u5236\u5668)\uff0c\u800c\u662f\u4ec5\u5305\u542b\u8282\u70b9eNB(\u6f14\u8fdb\u578b\u57fa\u7ad9)\u3002\u8fd9\u79cd\u8bbe\u8ba1\u51cf\u5c11\u4e86\u7f51\u7edc\u4e2d\u7684\u5c42\u6b21\u548c\u590d\u6742\u6027\uff0c\u4f7f\u5f97\u7f51\u7edc\u66f4\u52a0\u7b80\u6d01\u9ad8\u6548\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u529f\u80fd\u96c6\u6210<\/strong>\uff1a\u5728LTE\u4f53\u7cfb\u4e2d\uff0cRNC\u548cNode B\u7684\u529f\u80fd\u88ab\u6574\u5408\u5230\u5355\u4e00\u7684eNB\u8bbe\u5907\u4e2d\u3002eNB\u4e0d\u4ec5\u63d0\u4f9bE-UTRAN\u7684RLC\/MAC\/PDCP\/\u7269\u7406\u5c42\u534f\u8bae\u7684\u529f\u80fd\uff0c\u8fd8\u63d0\u4f9b\u63a7\u5236\u9762RRC\u534f\u8bae\u7684\u529f\u80fd\u3002\u8fd9\u79cd\u96c6\u6210\u51cf\u5c11\u4e86\u63a5\u53e3\u6570\u91cf\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u6574\u4f53\u6548\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u652f\u6301\u79fb\u52a8\u6027<\/strong>\uff1aLTE\u7f51\u7edc\u901a\u8fc7eNode B\u4e4b\u95f4\u7684\u903b\u8f91\u8fde\u63a5(\u901a\u8fc7X2\u63a5\u53e3)\u5f62\u6210\u4e86\u4e00\u4e2a\u7f51\u683c\u578b\u7f51\u7edc\u7ed3\u6784\uff0c\u8fd9\u6837\u7684\u8bbe\u8ba1\u4e3b\u8981\u7528\u4e8e\u652f\u6301UE(\u7528\u6237\u8bbe\u5907)\u5728\u6574\u4e2a\u7f51\u7edc\u5185\u7684\u79fb\u52a8\u6027\uff0c\u4fdd\u8bc1\u7528\u6237\u7684\u65e0\u7f1d\u5207\u6362\u3002\u6bcf\u4e2aeNode B\u901a\u8fc7S1\u63a5\u53e3\u8fde\u63a5\u5230\u6f14\u8fdb\u5206\u7ec4\u6838\u5fc3(EPC)\u7f51\u7edc\u7684\u79fb\u52a8\u7ba1\u7406\u5b9e\u4f53(MME)\uff0c\u8fdb\u4e00\u6b65\u786e\u4fdd\u4e86\u7f51\u7edc\u7684\u7075\u6d3b\u6027\u548c\u53ef\u9760\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u7f51\u7edc\u5171\u4eab\u4e0e\u8d1f\u8f7d\u5747\u8861<\/strong>\uff1aLTE\u7684\u6241\u5e73\u5316\u7f51\u7edc\u67b6\u6784\u5177\u6709\u7f51\u7edc\u5171\u4eab\u548c\u8d1f\u8f7d\u5747\u8861\u7684\u4f18\u70b9\u3002\u8fd9\u610f\u5473\u7740\u591a\u4e2a\u7528\u6237\u53ef\u4ee5\u5171\u4eab\u76f8\u540c\u7684\u7269\u7406\u8d44\u6e90\uff0c\u540c\u65f6\u7cfb\u7edf\u80fd\u591f\u6839\u636e\u5b9e\u9645\u9700\u6c42\u52a8\u6001\u8c03\u6574\u8d44\u6e90\u5206\u914d\uff0c\u4ee5\u8fbe\u5230\u6700\u4f73\u7684\u6027\u80fd\u548c\u6548\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u964d\u4f4e\u5ef6\u8fdf<\/strong>\uff1a\u6241\u5e73\u5316\u7684\u7f51\u7edc\u67b6\u6784\u6709\u52a9\u4e8e\u51cf\u5c11\u57fa\u7ad9\u548c\u6838\u5fc3\u7f51\u4e4b\u95f4\u4fe1\u606f\u4ea4\u4e92\u7684\u591a\u8282\u70b9\u5f00\u9500\uff0c\u4ece\u800c\u51cf\u5c0f\u7cfb\u7edf\u65f6\u5ef6\uff0c\u63d0\u9ad8\u901a\u4fe1\u6548\u7387\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u5feb\u901f\u54cd\u5e94\u7684\u5e94\u7528\u573a\u666f\u5c24\u4e3a\u91cd\u8981\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000LTE\u7684\u6241\u5e73\u5316\u67b6\u6784\u901a\u8fc7\u7b80\u5316\u7f51\u7edc\u7ed3\u6784\u3001\u96c6\u6210\u529f\u80fd\u3001\u652f\u6301\u79fb\u52a8\u6027\u3001\u5b9e\u73b0\u7f51\u7edc\u5171\u4eab\u4e0e\u8d1f\u8f7d\u5747\u8861\u4ee5\u53ca\u964d\u4f4e\u5ef6\u8fdf\u7b49\u7279\u70b9\uff0c\u4e3a\u7528\u6237\u63d0\u4f9b\u4e86\u4e00\u4e2a\u9ad8\u6548\u3001\u53ef\u9760\u4e14\u7075\u6d3b\u7684\u901a\u4fe1\u73af\u5883\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 LTE\u6241\u5e73\u5316\u67b6\u6784\u4e2dOFDM\u6280\u672f\u7684\u5177\u4f53\u5e94\u7528\u548c\u4f18\u52bf\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000LTE\u6241\u5e73\u5316\u67b6\u6784\u4e2dOFDM\u6280\u672f\u7684\u5177\u4f53\u5e94\u7528\u4e3b\u8981\u4f53\u73b0\u5728\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u63d0\u9ad8\u9891\u8c31\u6548\u7387\uff1aOFDM\u901a\u8fc7\u5728\u9891\u57df\u4e0a\u5206\u4e3a\u82e5\u5e72\u4e2a\u5b50\u8f7d\u6ce2\u5e76\u5f15\u5165\u4fdd\u62a4\u5e26\u5bbd\uff0c\u5229\u7528sinc\u6ce2\u5bf9\u5b50\u8f7d\u6ce2\u8109\u51b2\u6210\u578b\u5b9e\u73b0\u4e86\u6b63\u4ea4\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u9891\u8c31\u7684\u5229\u7528\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6297\u591a\u5f84\u548c\u4f4e\u590d\u6742\u5ea6\u63a5\u6536\u673a\uff1aOFDM\u6280\u672f\u901a\u8fc7\u5f15\u5165\u5faa\u73af\u524d\u7f00(CP)\u6765\u89e3\u51b3\u7531\u591a\u5f84\u4fe1\u9053\u5f15\u8d77\u7684\u7b26\u53f7\u95f4\u5e72\u6270(ISI)\uff0c\u5e76\u4e14\u7531\u4e8eCP-OFDM\u7ecf\u5386\u4e86\u5e73\u5766\u8870\u843d\u7684\u4fe1\u9053\uff0c\u5404\u4e2a\u5b50\u8f7d\u6ce2\u7684\u8870\u51cf\u53ef\u4ee5\u901a\u8fc7\u5355\u62bd\u5934\u5747\u8861\u5668\u6765\u8865\u507f\uff0c\u8fd9\u5927\u5927\u964d\u4f4e\u4e86\u63a5\u6536\u673a\u7684\u590d\u6742\u5ea6\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u591a\u7528\u6237\u63a5\u5165\u8c03\u5ea6\uff1aOFDM\u6280\u672f\u652f\u6301\u5728\u65f6\u57df\u8c03\u5ea6\u8d44\u6e90\uff0c\u4f8b\u5982\u53ef\u4ee5\u901a\u8fc7\u8d44\u6e90\u5757(RB)\u6765\u5206\u79bb\u4e0d\u540c\u7684\u7528\u6237\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u75281ms\u7684\u53d1\u9001\u65f6\u95f4\u95f4\u9694TTI\u6765\u8fdb\u884c\u8c03\u5ea6\uff0c\u8fd9\u4e3a\u591a\u7528\u6237\u63a5\u5165\u63d0\u4f9b\u4e86\u4fbf\u5229\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7b80\u5316\u4fe1\u9053\u5747\u8861\uff1a\u4e0e\u5355\u8f7d\u6ce2\u65b9\u6848\u76f8\u6bd4\uff0cOFDM\u80fd\u591f\u5e94\u5bf9\u6076\u52a3\u7684\u4fe1\u9053\u6761\u4ef6\uff0c\u5982\u9ad8\u9891\u8870\u51cf\u3001\u7a84\u5e26\u5e72\u6270\u548c\u591a\u5f84\u5bfc\u81f4\u7684\u9891\u7387\u9009\u62e9\u6027\u8870\u843d\uff0c\u800c\u65e0\u9700\u590d\u6742\u7684\u5747\u8861\u6ee4\u6ce2\u5668\u3002\u8fd9\u662f\u56e0\u4e3aOFDM\u53ef\u4ee5\u88ab\u89c6\u4e3a\u4f7f\u7528\u8bb8\u591a\u7f13\u6162\u8c03\u5236\u7684\u7a84\u5e26\u4fe1\u53f7\uff0c\u800c\u4e0d\u662f\u4e00\u4e2a\u5feb\u901f\u8c03\u5236\u7684\u5bbd\u5e26\u4fe1\u53f7\uff0c\u4ece\u800c\u7b80\u5316\u4e86\u4fe1\u9053\u5747\u8861\u7684\u8fc7\u7a0b\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u652f\u6301SFN\u8bbe\u8ba1\uff1aOFDM\u7684\u4f4e\u7b26\u53f7\u7387\u4f7f\u5f97\u7b26\u53f7\u4e4b\u95f4\u7684\u4fdd\u62a4\u95f4\u9694\u7684\u4f7f\u7528\u53d8\u5f97\u53ef\u884c\uff0c\u6709\u52a9\u4e8e\u5355\u9891\u7f51\u7edc(SFN)\u7684\u8bbe\u8ba1\u3002\u5728\u8fd9\u79cd\u8bbe\u8ba1\u4e2d\uff0c\u591a\u4e2a\u76f8\u90bb\u7684\u53d1\u5c04\u5668\u4ee5\u76f8\u540c\u7684\u9891\u7387\u540c\u65f6\u53d1\u9001\u76f8\u540c\u7684\u4fe1\u53f7\uff0c\u6765\u81ea\u591a\u4e2a\u8fdc\u7a0b\u53d1\u5c04\u673a\u7684\u4fe1\u53f7\u53ef\u4ee5\u5efa\u8bbe\u6027\u5730\u7ec4\u5408\uff0c\u800c\u4e0d\u662f\u76f8\u4e92\u5e72\u6270\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000<strong>OFDM\u6280\u672f\u7684\u4f18\u52bf\u8fd8\u5305\u62ec\uff1a<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u786c\u4ef6\u6280\u672f\u7684\u6210\u719f\uff1a\u6570\u5b57\u4fe1\u53f7\u5904\u7406\u82af\u7247\u6280\u672f\u7684\u6210\u719f\u964d\u4f4e\u4e86OFDM\u5b9e\u73b0\u7684\u6210\u672c\u548c\u96be\u5ea6\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u66f4\u5bb9\u6613\u4e0eMIMO\u7ed3\u5408\uff1aOFDM\u6280\u672f\u652f\u6301\u4e0e\u5176\u4ed6\u6280\u672f\u5982MIMO\u7ed3\u5408\uff0c\u8fdb\u4e00\u6b65\u63d0\u5347\u901f\u7387\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u66f4\u5e72\u51c0\u7684\u6280\u672f\u73af\u5883\uff1aOFDM\u6280\u672f\u6ca1\u6709\u4e13\u5229\u9650\u5236\uff0c\u6709\u5229\u4e8e\u6807\u51c6\u5316\u548c\u63a8\u5e7f\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000LTE\u6241\u5e73\u5316\u67b6\u6784\u4e2dOFDM\u6280\u672f\u7684\u5e94\u7528\u4e3b\u8981\u96c6\u4e2d\u5728\u63d0\u9ad8\u9891\u8c31\u6548\u7387\u3001\u7b80\u5316\u4fe1\u9053\u5747\u8861\u3001\u652f\u6301\u591a\u7528\u6237\u63a5\u5165\u8c03\u5ea6\u7b49\u65b9\u9762\uff0c\u5176\u4f18\u52bf\u5305\u62ec\u786c\u4ef6\u6280\u672f\u7684\u6210\u719f\u3001\u6613\u4e8e\u4e0eMIMO\u7ed3\u5408\u4ee5\u53ca\u65e0\u4e13\u5229\u9650\u5236\u7b49\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 eNB\u8bbe\u5907\u5728LTE\u7f51\u7edc\u4e2d\u7684\u5177\u4f53\u529f\u80fd\u548c\u5de5\u4f5c\u539f\u7406\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000eNB(Evolved Node B\uff0c\u5373\u6f14\u8fdb\u578bNode B)\u662fLTE\u7f51\u7edc\u4e2d\u7684\u5173\u952e\u8bbe\u5907\uff0c\u4e3b\u8981\u8d1f\u8d23\u65e0\u7ebf\u63a5\u5165\u529f\u80fd\u4ee5\u53ca\u4e0eE-UTRAN(\u6f14\u8fdb\u578b\u901a\u7528\u65e0\u7ebf\u63a5\u5165\u7f51\u7edc)\u7684\u5730\u9762\u63a5\u53e3\u529f\u80fd\u3002\u5177\u4f53\u6765\u8bf4\uff0ceNB\u7684\u529f\u80fd\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000\u65e0\u7ebf\u63a5\u5165\u529f\u80fd\uff1aeNB\u8d1f\u8d23\u5b9e\u73b0\u65e0\u7ebf\u627f\u8f7d\u63a7\u5236\u3001\u65e0\u7ebf\u8bb8\u53ef\u63a7\u5236\u548c\u8fde\u63a5\u79fb\u52a8\u6027\u63a7\u5236\u7b49\u529f\u80fd\u3002\u8fd9\u610f\u5473\u7740eNB\u9700\u8981\u7ef4\u62a4\u4e0e\u7ec8\u7aef\u8bbe\u5907\u4e4b\u95f4\u7684\u65e0\u7ebf\u94fe\u8def\uff0c\u5e76\u786e\u4fdd\u6570\u636e\u80fd\u591f\u5728\u8fd9\u4e9b\u94fe\u8def\u4e0a\u6709\u6548\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u8d44\u6e90\u7ba1\u7406\uff1aeNB\u5b8c\u6210\u4e0a\u4e0b\u884c\u7684\u7528\u6237\u8bbe\u5907(UE)\u7684\u52a8\u6001\u8d44\u6e90\u5206\u914d(\u8c03\u5ea6)\uff0c\u8fd9\u5305\u62ec\u65e0\u7ebf\u8d44\u6e90\u7684\u7ba1\u7406\u548c\u4f18\u5316\uff0c\u4ee5\u652f\u6301\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u6570\u636e\u5904\u7406\uff1aeNB\u8fd8\u6d89\u53ca\u5230IP\u5934\u538b\u7f29\u53ca\u7528\u6237\u6570\u636e\u6d41\u52a0\u5bc6\u7b49\u5904\u7406\u8fc7\u7a0b\uff0c\u8fd9\u5bf9\u4e8e\u4fdd\u8bc1\u6570\u636e\u4f20\u8f93\u7684\u5b89\u5168\u6027\u548c\u6548\u7387\u81f3\u5173\u91cd\u8981\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u79fb\u52a8\u6027\u7ba1\u7406\uff1a\u5728UE\u9644\u7740\u65f6\uff0ceNB\u8d1f\u8d23\u9009\u62e9\u5408\u9002\u7684\u79fb\u52a8\u6027\u7ba1\u7406\u5b9e\u4f53(MME)\uff0c\u5e76\u53ef\u80fd\u6d89\u53ca\u5230Serving SAE Gateway\u7684\u9009\u62e9\uff0c\u8fd9\u4e9b\u90fd\u662f\u4e3a\u4e86\u652f\u6301UE\u5728\u6574\u4e2a\u7f51\u7edc\u4e2d\u7684\u79fb\u52a8\u6027\u548c\u8fde\u7eed\u6027\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7269\u7406\u5c42\u548cMAC\u5c42\u529f\u80fd\uff1a\u9664\u4e86\u4e0a\u8ff0\u529f\u80fd\u5916\uff0ceNB\u8fd8\u627f\u62c5\u4e86\u539f\u6765RNC(Radio Network Controller)\u7684\u5927\u90e8\u5206\u529f\u80fd\uff0c\u5305\u62ec\u7269\u7406\u5c42\u3001MAC\u5c42\u3001RRC(Radio Resource Control)\u3001\u8c03\u5ea6\u3001\u63a5\u5165\u63a7\u5236\u7b49\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u7ed3\u6784\u7ec4\u6210\uff1a\u4ece\u7ed3\u6784\u4e0a\u8bb2\uff0ceNB\u7531\u4e24\u4e2a\u4e3b\u8981\u6a21\u5757\u6784\u6210\uff1a\u57fa\u5e26\u63a7\u5236\u5355\u5143(BBU)\u548c\u8fdc\u7aef\u5c04\u9891\u5355\u5143(RRU)\u3002BBU\u8d1f\u8d23\u7f16\u7801\u8c03\u5236\u548c\u4fe1\u53f7\u5904\u7406\u7b49\u529f\u80fd\uff0c\u800cRRU\u5219\u8d1f\u8d23\u5c04\u9891\u5b9e\u73b0\uff0c\u5373\u76f4\u63a5\u4e0e\u5929\u7ebf\u8fde\u63a5\u7684\u90e8\u5206\u3002<\/li>\n\n\n\n<li>\u3000\u3000\u5de5\u4f5c\u539f\u7406\uff1a\u5f53UE\u53d1\u9001\u6570\u636e\u65f6\uff0ceNB\u63a5\u6536\u5e76\u89e3\u8c03\u65e0\u7ebf\u4fe1\u53f7\uff0c\u5bf9\u6570\u636e\u8fdb\u884c\u5904\u7406\u548c\u52a0\u5bc6\u540e\u53d1\u9001\u5230\u6838\u5fc3\u7f51\u7edc;\u53cd\u4e4b\uff0c\u5f53\u6838\u5fc3\u7f51\u7edc\u8981\u5411UE\u53d1\u9001\u6570\u636e\u65f6\uff0ceNB\u540c\u6837\u4f1a\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u548c\u89e3\u8c03\uff0c\u5e76\u901a\u8fc7\u65e0\u7ebf\u4fe1\u53f7\u53d1\u9001\u7ed9UE\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u3000\u3000eNB\u5728LTE\u7f51\u7edc\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\uff0c\u5b83\u4e0d\u4ec5\u8d1f\u8d23\u65e0\u7ebf\u63a5\u5165\u548c\u8d44\u6e90\u7ba1\u7406\uff0c\u8fd8\u6d89\u53ca\u5230\u6570\u636e\u5904\u7406\u3001\u79fb\u52a8\u6027\u7ba1\u7406\u548c\u7269\u7406\u5c42\u7b49\u591a\u4e2a\u5c42\u9762\u7684\u5de5\u4f5c\uff0c\u786e\u4fdd\u4e86LTE\u7f51\u7edc\u7684\u9ad8\u6548\u8fd0\u884c\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 LTE\u652f\u6301\u79fb\u52a8\u6027\u662f\u5982\u4f55\u901a\u8fc7eNode B\u4e4b\u95f4\u7684\u903b\u8f91\u8fde\u63a5\u5b9e\u73b0\u7684\uff0c\u7279\u522b\u662fX2\u63a5\u53e3\u7684\u4f5c\u7528?<\/h2>\n\n\n\n<p>\u3000\u3000LTE\u652f\u6301\u79fb\u52a8\u6027\u4e3b\u8981\u901a\u8fc7eNode B(\u6f14\u8fdb\u578b\u57fa\u7ad9)\u4e4b\u95f4\u7684\u903b\u8f91\u8fde\u63a5\u5b9e\u73b0\uff0c\u7279\u522b\u662f\u901a\u8fc7X2\u63a5\u53e3\u7684\u4f5c\u7528\u3002\u5177\u4f53\u6765\u8bf4\uff0cX2\u63a5\u53e3\u5141\u8bb8eNB\u4e92\u76f8\u901a\u77e5\u8d44\u6e90\u72b6\u6001\u3001\u8fc7\u8f7d\u4ee5\u53ca\u4f20\u8f93\u8d1f\u8f7d\uff0c\u8fd9\u5bf9\u4e8e\u7f51\u7edc\u7684\u52a8\u6001\u8c03\u6574\u548c\u4f18\u5316\u81f3\u5173\u91cd\u8981\u3002\u6b64\u5916\uff0cX2\u63a5\u53e3\u8fd8\u652f\u6301eNBs\u4e4b\u95f4\u7684\u4e92\u901a\uff0c\u5305\u62ec\u4fe1\u4ee4\u4fe1\u606f\u7684\u4ea4\u4e92\u3001\u5c06PDU(\u534f\u8bae\u6570\u636e\u5355\u5143)\u524d\u8f6c\u5230\u5404\u81ea\u7684\u96a7\u9053\u7ec8\u7ed3\u70b9\uff0c\u4ee5\u53ca\u652f\u6301\u4e0d\u540c\u5382\u5546eNBs\u4e4b\u95f4\u7684\u4e92\u8fde\u3002\u5728LTE\u4e2d\uff0c\u4f7f\u7528X2\u63a5\u53e3\u8fdb\u884c\u7684\u5185\u90e8LTE(Intra-MME\/SGW)\u5207\u6362\u662f\u6307\u5f53\u79fb\u52a8\u7ba1\u7406\u5b9e\u4f53(MME)\u548c\u670d\u52a1\u7f51\u5173(SGW)\u4fdd\u6301\u4e0d\u53d8\u65f6\uff0c\u5c06UE\u4ece\u6e90eNodeB(S-eNB)\u5207\u6362\u5230\u76ee\u6807eNodeB(T-eNB)\u7684\u8fc7\u7a0b\u3002X2\u63a5\u53e3\u91c7\u7528\u4e86\u4e0eS1\u63a5\u53e3\u4e00\u81f4\u7684\u539f\u5219\uff0c\u5176\u7528\u6237\u9762\u534f\u8bae\u7ed3\u6784\u4e0e\u63a7\u5236\u9762\u534f\u8bae\u7ed3\u6784\u5747\u4e0eS1\u76f8\u4f3c\uff0c\u8fd9\u6709\u52a9\u4e8e\u7b80\u5316\u6570\u636e\u8f6c\u53d1\u65f6eNodeB\u7684\u534f\u8bae\u5904\u7406\u3002\u6b64\u5916\uff0cLTE X2-UP\u548cLTE S1-UP\u4f7f\u7528\u76f8\u540c\u7684U\u5e73\u9762\u534f\u8bae\uff0c\u4ee5\u6700\u5c0f\u5316\u6570\u636e\u8f6c\u53d1\u65f6eNodeB\u7684\u534f\u8bae\u5904\u7406\u8d1f\u62c5\u3002<\/p>\n\n\n\n<p>\u3000\u3000X2\u63a5\u53e3\u901a\u8fc7\u4fc3\u8fdb\u76f8\u90bbeNodeB\u4e4b\u95f4\u7684\u901a\u4fe1\u548c\u534f\u8c03\uff0c\u652f\u6301LTE\u7f51\u7edc\u4e2d\u7684\u79fb\u52a8\u6027\u548c\u5207\u6362\uff0c\u786e\u4fdd\u4e86\u7f51\u7edc\u7684\u9ad8\u6548\u8fd0\u884c\u548c\u7528\u6237\u4f53\u9a8c\u7684\u8fde\u7eed\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 LTE\u7f51\u7edc\u5171\u4eab\u4e0e\u8d1f\u8f7d\u5747\u8861\u662f\u5982\u4f55\u64cd\u4f5c\u7684\uff0c\u4ee5\u53ca\u8fd9\u79cd\u673a\u5236\u5982\u4f55\u4f18\u5316\u8d44\u6e90\u5206\u914d?<\/h2>\n\n\n\n<p>\u3000\u3000LTE\u7f51\u7edc\u5171\u4eab\u4e0e\u8d1f\u8f7d\u5747\u8861\u7684\u64cd\u4f5c\u4e3b\u8981\u901a\u8fc7\u5408\u7406\u5206\u914d\u7528\u6237\u548c\u8d44\u6e90\uff0c\u4ee5\u5b9e\u73b0\u7f51\u7edc\u4e2d\u5404\u4e2a\u8282\u70b9\u7684\u8d1f\u8f7d\u5c3d\u53ef\u80fd\u5e73\u8861\uff0c\u907f\u514d\u67d0\u4e9b\u8282\u70b9\u8d1f\u8f7d\u8fc7\u91cd\u7684\u60c5\u51b5\u3002\u5177\u4f53\u64cd\u4f5c\u5305\u62ec\u8fde\u63a5\u8c03\u5ea6\u3001\u8d1f\u8377\u5747\u8861\u6280\u672f\u539f\u7406\u7684\u5e94\u7528\u3001\u591a\u76ee\u6807\u4f18\u5316\u7684\u52a8\u6001\u8d1f\u8f7d\u5747\u8861\u7b97\u6cd5\u7b49\u3002\u4f8b\u5982\uff0c\u8fde\u63a5\u8c03\u5ea6\u662f\u901a\u8fc7\u5408\u7406\u8c03\u5ea6\u7528\u6237\u8fde\u63a5\u5230\u4e0d\u540c\u7684\u57fa\u7ad9\u6216\u6247\u533a\u4e0a\uff0c\u4ee5\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u3002\u8d1f\u8377\u5747\u8861\u6280\u672f\u53ef\u4ee5\u6839\u636e\u5f53\u524d\u5c0f\u533a\u8d1f\u8f7d\u72b6\u51b5\u53ca\u90bb\u5c0f\u533a\u8d1f\u8f7d\u72b6\u51b5\u5b9e\u65f6\u8c03\u6574\u79fb\u52a8\u6027\u53c2\u6570\uff0c\u5c06\u9ad8\u8d1f\u8f7d\u5c0f\u533a\u4e2d\u7684\u90e8\u5206\u4e1a\u52a1\u8f6c\u79fb\u5230\u8d1f\u8f7d\u76f8\u5bf9\u8f83\u4f4e\u7684\u5c0f\u533a\uff0c\u4ee5\u4f7f\u5404\u5c0f\u533a\u7684\u8d1f\u8f7d\u6bd4\u8f83\u5747\u8861\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u6b64\u5916\uff0cLTE\u7f51\u7edc\u4e2d\u7684\u8d1f\u8f7d\u5747\u8861\u8fd8\u6d89\u53ca\u5230\u57fa\u4e8eQoE\u7684\u591a\u4e1a\u52a1\u8d44\u6e90\u5206\u914d\u7b97\u6cd5\uff0c\u8be5\u7b97\u6cd5\u65e8\u5728\u9ad8\u6548\u5229\u7528\u65e0\u7ebf\u9891\u8c31\u8d44\u6e90\uff0c\u5e76\u4e3a\u7528\u6237\u63d0\u4f9b\u4fdd\u8bc1\u4f53\u9a8c\u8d28\u91cf\u7684\u670d\u52a1\u3002\u5728LTE-Advanced\u5f02\u6784\u7f51\u7edc\u4e2d\uff0c\u8d1f\u8f7d\u5747\u8861\u95ee\u9898\u4f5c\u4e3a\u8d44\u6e90\u7ba1\u7406\u7684\u6311\u6218\u4e4b\u4e00\uff0c\u9700\u8981\u89e3\u51b3\u4e1a\u52a1\u9700\u6c42\u4e0e\u8d44\u6e90\u4f9b\u7ed9\u7684\u5339\u914d\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4e3a\u4e86\u4f18\u5316\u8d44\u6e90\u5206\u914d\uff0c\u53ef\u4ee5\u91c7\u7528\u81ea\u7ba1\u7406\u7f51\u7edc(SON)\u7b56\u7565\u548c\u4f18\u5316\u529f\u80fd\uff0c\u5982LB(Load Balancing)\u4f18\u5316\u76ee\u6807\u5904\u7406\u4e0d\u5747\u8861\u7684\u4e1a\u52a1\u8d1f\u8f7d\u5206\u5e03\uff0c\u5e76\u6700\u5c0f\u5316\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861\u6240\u9700\u7684\u5207\u6362\u548c\u91cd\u5b9a\u5411\u6b21\u6570\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u901a\u8fc7\u914d\u7f6e\u8d1f\u8377\u5747\u8861\u76f8\u5173\u53c2\u6570\uff0c\u5982\u8d1f\u8377\u7ba1\u7406\u3001\u5c0f\u533a\u8d1f\u8377\u5747\u8861\u63a7\u5236\u7b49\uff0c\u6765\u6267\u884c\u8d1f\u8377\u5747\u8861\u3002<\/p>\n\n\n\n<p>\u3000\u3000LTE\u7f51\u7edc\u5171\u4eab\u4e0e\u8d1f\u8f7d\u5747\u8861\u901a\u8fc7\u591a\u79cd\u6280\u672f\u548c\u7b56\u7565\u64cd\u4f5c\uff0c\u65e8\u5728\u5b9e\u73b0\u8d44\u6e90\u7684\u5408\u7406\u5206\u914d\u548c\u7f51\u7edc\u6027\u80fd\u7684\u6700\u4f18\u5316\u3002\u8fd9\u4e9b\u673a\u5236\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u548c\u8c03\u6574\u7f51\u7edc\u72b6\u6001\uff0c\u786e\u4fdd\u7528\u6237\u670d\u52a1\u7684\u8d28\u91cf\u548c\u7f51\u7edc\u7684\u9ad8\u6548\u8fd0\u884c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e94\u3001 LTE\u6241\u5e73\u5316\u67b6\u6784\u5982\u4f55\u964d\u4f4e\u5ef6\u8fdf\uff0c\u5177\u4f53\u6709\u54ea\u4e9b\u6280\u672f\u6216\u7b56\u7565\u88ab\u91c7\u7528?<\/h2>\n\n\n\n<p>\u3000\u3000LTE\u6241\u5e73\u5316\u67b6\u6784\u901a\u8fc7\u591a\u79cd\u6280\u672f\u6216\u7b56\u7565\u964d\u4f4e\u5ef6\u8fdf\uff0c\u5177\u4f53\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul 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