{"id":8266,"date":"2024-06-16T11:01:01","date_gmt":"2024-06-16T03:01:01","guid":{"rendered":""},"modified":"2024-06-16T11:01:01","modified_gmt":"2024-06-16T03:01:01","slug":"\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f00_\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f00","status":"publish","type":"post","link":"https:\/\/mushiming.com\/8266.html","title":{"rendered":"\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f00_\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f00"},"content":{"rendered":"
LTE\u540c\u9891\u7f51\u7edc\u5b58\u5728\u4e25\u91cd\u7684\u4fe1\u53f7\u5e72\u6270\uff0c\u7279\u522b\u662f\u5728\u57ce\u533a\u5bc6\u96c6\u533a\u57df\u3001\u5c0f\u533a\u4fe1\u53f7\u8986\u76d6\u4ea4\u53e0\u533a\u57df\u53ca\u8986\u76d6\u8fb9\u7f18\u533a\u57df\uff0c\u4e25\u91cd\u7684\u4fe1\u53f7\u5e72\u6270\u5bfc\u81f4\u7528\u6237\u4f53\u9a8c\u5dee\u3002<\/p>\n
\u90e8\u7f72SFN\u7279\u6027\uff0c\u5c062\uff5e6\u4e2a\u8986\u76d6\u4e0d\u540c\u533a\u57df\u7684\u6247\u533a\u5408\u5e76\u4e3a\u4e00\u4e2aSFN\u5c0f\u533a\uff0c\u4f7f\u5408\u5e76\u524d\u5c0f\u533a\u8fb9\u7f18\u533a\u57df\u7684\u4ea4\u53e0\u8f6c\u53d8\u4e3aSFN\u5c0f\u533a\u7684\u4e2d\u5fc3\u533a\u57df\u3002SFN\u5c0f\u533a\u5185\uff0c\u7ec8\u7aef\u7528\u6237\u4f7f\u7528\u8054\u5408\u8c03\u5ea6\uff0c\u6240\u6709\u7684\u6247\u533a\u8bbe\u5907\u53d1\u9001\u76f8\u540c\u7684\u4fe1\u53f7\uff0c\u4ece\u800c\u964d\u4f4e\u5e72\u6270\u3002\u5728\u7528\u6237\u6570\u4e0d\u591a\uff0c\u7f51\u7edc\u8d1f\u8f7d\u8f83\u4f4e\u7684\u60c5\u51b5\u4e0b\uff0c\u80fd\u591f\u663e\u8457\u63d0\u5347\u7528\u6237\u7684\u4f53\u9a8c\u3002\u4f46\u968f\u7740\u8d1f\u8f7d\u7684\u589e\u52a0\uff0c\u5728\u8d1f\u8f7d\u8f83\u9ad8\u65f6\uff0cPRB\u5bb9\u6613\u53d7\u9650\uff0c\u4f1a\u51fa\u73b0\u901f\u7387\u7684\u8d1f\u589e\u76ca\u3002<\/p>\n
\u901a\u8fc7ASFN(\u81ea\u9002\u5e94SFN)\u7279\u6027\uff0c\u7269\u7406\u5c0f\u533a\u4ea4\u53e0\u533a\u57df\u7528\u6237\u4f7f\u7528\u8054\u5408\u8c03\u5ea6\uff0c\u7269\u7406\u5c0f\u533a\u4e2d\u5fc3\u7528\u6237\u4f7f\u7528\u72ec\u7acb\u8c03\u5ea6\uff0c\u5229\u7528\u8d44\u6e90\u590d\u7528(SDMA\uff0cSpace Division Multiple Access\uff0c\u7a7a\u5206\u591a\u5740)\u6280\u672f\uff0c\u4ece\u800c\u63d0\u5347\u5c0f\u533a\u7684\u541e\u5410\u91cf\u3002<\/p>\n
SFN(Single Frequency Network\uff0c\u5355\u9891\u7f51)\uff1a\u662f\u6307\u5728\u4e00\u4e2a\u5730\u7406\u533a\u57df\u5185\uff0c\u5c06\u591a\u4e2a\u5de5\u4f5c\u5728\u76f8\u540c\u9891\u6bb5\u4e0a\u7684RRU\u5408\u5e76\u4e3a\u4e00\u4e2a\u5c0f\u533a\u7684\u6280\u672f\u3002<\/p>\n
ASFN(Adaptive SFN)\uff1a\u5728SFN\u7684\u57fa\u7840\u4e0a\u91c7\u7528SDMA\u63d0\u5347\u5bb9\u91cf\u7684\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n
2.1 SFN(Single Frequency Network)\u4ecb\u7ecd<\/p>\n
SFN\u662f\u6307\u5728\u4e00\u4e2a\u5730\u7406\u533a\u57df\u5185\uff0c\u5c06\u591a\u4e2a\u5de5\u4f5c\u5728\u76f8\u540c\u9891\u6bb5\u4e0a\u7684\u5c04\u9891\u6a21\u5757\u6240\u8986\u76d6\u7684\u7269\u7406\u5c0f\u533a<\/p>\n
\u5408\u5e76\u4e3a\u4e00\u4e2a\u5c0f\u533a\u7684\u6280\u672f\u3002SFN\u5c0f\u533a\u4e2d\uff0c\u5404\u5c04\u9891\u6a21\u5757\u8986\u76d6\u7684\u65e0\u7ebf\u901a\u4fe1\u533a\u57df\u79f0\u4e3a\u201c\u7269\u7406\u5c0f\u533a\u201d\u3002\u5408\u5e76\u540e\uff0c\u5404\u7269\u7406\u5c0f\u533a\u4f7f\u7528\u76f8\u540c\u7684PCI\u3002SFN\u5c0f\u533a\u91c7\u7528RRU\u8054\u5408\u8c03\u5ea6\uff0c\u5373\u4e0b\u884c\u7269\u7406\u4fe1\u9053\u91c7\u7528\u591a\u5c0f\u533a\u8054\u5408\u53d1\u9001\uff0c\u4e0a\u884c\u7269\u7406\u4fe1\u9053\u91c7\u7528\u5168\u90e8\u63a5\u6536\u548c\u9009\u62e9\u63a5\u6536\uff0c\u4f7f\u5f97\u539f\u5148\u5f7c\u6b64\u5e72\u6270\u7684\u591a\u4e2a\u5c0f\u533a\u4fe1\u53f7\u53d8\u6210\u591a\u5f84\u53e0\u52a0\u589e\u5f3a\u7684\u4fe1\u53f7\uff0c\u63d0\u5347\u4e86\u5c0f\u533a\u8fb9\u7f18\u7684SINR\uff0c\u51cf\u5c11\u4e86\u76f8\u90bb\u5c0f\u533a\u6570\u91cf\uff0c\u660e\u663e\u51cf\u5c0f\u4e86\u5c0f\u533a\u95f4\u540c\u9891\u5e72\u6270\uff0c\u4ece\u800c\u6539\u5584\u7528\u6237\u5728\u5c0f\u533a\u8fb9\u7f18\u7684\u4e1a\u52a1\u4f53\u9a8c\u3002<\/p>\n
\u5982\u56fe\u4e0b\u56fe\u6240\u793a\uff0c\u5408\u5e76\u4e3aSFN\u5c0f\u533a\u540e\uff0c\u539f\u6765\u76843\u4e2a\u5c0f\u533a\u7684\u90e8\u5206\u8fb9\u754c\u88ab\u6d88\u9664\uff0cRRU\u4e4b\u95f4\u7684\u5c0f\u533a\u8fb9\u754c\u53d8\u4e3a\u4e86\u5c0f\u533a\u5185\u90e8\u533a\u57df\u3002<\/p>\n
SFN\u5c0f\u533a\u4e0b\u884c\u7269\u7406\u4fe1\u9053\u91c7\u7528\u8054\u5408\u53d1\u9001\u3002<\/strong>\u8054\u5408\u53d1\u9001\u662f\u6307SFN\u5c0f\u533a\u5305\u542b\u7684\u591a\u4e2aRRU\u901a\u8fc7\u8c03\u5ea6\u5728\u76f8\u540c\u7684\u65f6\u9891\u8d44\u6e90\u4e0a\u540c\u65f6\u53d1\u9001\u76f8\u540c\u7684\u6570\u636e\u3002\u76f8\u6bd4\u666e\u901a\u60c5\u51b5\u4e0b\u6bcf\u4e2aRRU\u5404\u81ea\u4e3a\u4e00\u4e2a\u5c0f\u533a\u7684\u7ec4\u7f51\u65b9\u5f0f\uff0cSFN\u5c0f\u533a\u5185\u5404RRU\u88ab\u89c6\u4e3a\u4e00\u4e2a\u903b\u8f91\u5c0f\u533a\uff0c\u6d88\u9664\u4e86\u539f\u6709\u5c0f\u533a\u8fb9\u754c\u548c\u5e72\u6270\uff0c\u5e76\u4e14\u53ef\u4ee5\u53ef\u4ee5\u901a\u8fc7\u8054\u5408\u53d1\u9001\u83b7\u5f97\u589e\u76ca\u3002<\/p>\n SFN\u5c0f\u533a\u4e0a\u884cPRACH\u548cSRS\u91c7\u7528\u5168\u90e8\u63a5\u6536\u3002<\/strong>\u5168\u90e8\u63a5\u6536\u662f\u6307SFN\u5c0f\u533a\u4e2d\u7684RRU\u5747\u8fdb\u884c\u6570\u636e\u63a5\u6536\uff0c\u4fdd\u8bc1UE\u5728\u4efb\u4f55\u4e00\u4e2aRRU\u4e0b\u90fd\u80fd\u63a5\u5165\uff0c\u5e76\u4e14eNB\u80fd\u4f30\u8ba1\u5176\u4fe1\u9053\uff1bPUSCH\u548cPUCCH\u91c7\u7528\u9009\u62e9\u63a5\u6536\uff0c\u9009\u62e9\u63a5\u6536\u662f\u6307\u53ea\u5728\u76ee\u6807RRU(eNodeB\u6839\u636e\u6d4b\u91cf\u5230\u7528\u6237\u7684\u4fe1\u9053\u8d28\u91cf\uff0c\u9009\u62e9\u4e00\u4e2a\u6700\u597d\u7684RRU\u4f5c\u4e3a\u76ee\u6807RRU\uff0c\u8fdb\u884cPUSCH\/PUCCH\u63a5\u6536)\u8fdb\u884c\u6570\u636e\u63a5\u6536\u3002\u4e0a\u884c\u9009\u62e9\u63a5\u6536\u65f6\uff0c\u7531\u4e8e\u5bf9\u539f\u6765\u7684\u8fb9\u7f18\u7528\u6237\u9519\u5f00\u4e86\u5206\u914d\u7684\u8d44\u6e90\uff0c\u56e0\u800c\u51cf\u5c11\u4e86\u7528\u6237\u95f4\u5e72\u6270\uff0c\u83b7\u5f97\u4e86\u5e72\u6270\u6291\u5236\u7684\u589e\u76ca\u3002<\/p>\n SFN\u6280\u672f\u7531\u4e8e\u591a\u4e2a\u5c0f\u533a\u5408\u5e76\u4e3a\u4e00\u4e2a\u5c0f\u533a\uff0c\u9891\u8c31\u8d44\u6e90PRB\u6570\u4f1a\u51cf\u5c11\u3002\u56e0\u6b64\u5728\u8f7b\u8f7d\u4e0b\uff0c\u5373PRB\u4e0d\u5bb9\u6613\u53d7\u9650\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0b\u884c\u901f\u7387\u6613\u5f97\u5230\u589e\u76ca\u3002\u968f\u7740\u8d1f\u8f7d\u7684\u589e\u52a0\uff0c\u5728\u8d1f\u8f7d\u8f83\u9ad8\u65f6\uff0cPRB\u5bb9\u6613\u53d7\u9650\uff0c\u4f1a\u51fa\u73b0\u901f\u7387\u7684\u8d1f\u589e\u76ca\u3002<\/p>\n 2.2 ASFN(Adaptive SFN)\u4ecb\u7ecd<\/p>\n ASFN(Adaptive SFN)\uff1a\u5728SFN\u7684\u57fa\u7840\u4e0a\u91c7\u7528SDMA\u63d0\u5347\u5bb9\u91cf\u7684\u4e00\u79cd\u89e3\u51b3\u65b9\u6848\u3002<\/strong><\/p>\n \u81ea\u9002\u5e94SFN\u7269\u7406\u5c0f\u533a\u4ea4\u53e0\u533a\u57df\u7528\u6237\u4f7f\u7528\u8054\u5408\u8c03\u5ea6\uff0c\u7269\u7406\u5c0f\u533a\u4e2d\u5fc3\u7528\u6237\u4f7f\u7528\u72ec\u7acb\u8c03\u5ea6\uff0c\u4ece\u800c\u63d0\u5347\u5c0f\u533a\u7684\u541e\u5410\u91cf\u3002\u8fd9\u79cd\u4e0d\u540c\u7269\u7406\u5c0f\u533a\u7684\u8d44\u6e90\u590d\u7528\u5373\u4e3aSDMA(Space Division Multiple Access\uff0c\u7a7a\u5206\u591a\u5740)\u6280\u672f\u3002<\/p>\n Adaptive SFN\u5c0f\u533a\u5728\u4e0b\u884c\u8054\u5408\u53d1\u9001\u548c\u4e0a\u884c\u9009\u62e9\u63a5\u6536\u8fc7\u7a0b\u4e2d\uff0ceNodeB\u81ea\u52a8\u5224\u65ad\u7ec8\u7aef\u7528\u6237\u7684\u5c5e\u6027<\/strong>\uff0c\u5373\u662f\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u8fd8\u662f\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002eNodeB\u6839\u636eRSRP (Reference Signal Received Power)\u6216SINR\u786e\u5b9a\u7ec8\u7aef\u7528\u6237\u7684\u5de5\u4f5cRRU\u96c6\u5408\u3002\u540c\u65f6\uff0ceNodeB\u6839\u636e\u4e0a\u884c\u94fe\u8def\u6d4b\u91cf\u4fe1\u606f\u786e\u5b9a\u7528\u6237\u7684\u4e0a\u884c\u548c\u4e0b\u884c\u8c03\u5ea6\u5c5e\u6027\uff1aRRU\u95f4\u5e72\u6270\u4e25\u91cd\u7684\u7528\u6237\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\uff0cRRU\u95f4\u5e72\u6270\u4e0d\u660e\u663e\u7684\u7528\u6237\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u3002<\/p>\n \u5982\u56fe\u4e0b\u56fe\u6240\u793a\uff1a\u8054\u5408\u8c03\u5ea6\u9002\u7528\u4e8eRRU\u8986\u76d6\u4ea4\u754c\u5904\u7684UE\uff0c\u5982\u56fe\u4e2d\u7684UE1\u548cUE2\u3002\u6b64\u65f6\uff0c\u591a\u4e2aRRU(\u90e8\u5206\u6216\u5168\u90e8)\u5728\u540c\u4e00\u65f6\u9891\u8d44\u6e90\u4e0a\u5bf9UE\u53d1\u5c04\u540c\u6837\u7684\u6570\u636e\u3002\u72ec\u7acb\u8c03\u5ea6\u9002\u7528\u4e8e\u7269\u7406\u5c0f\u533a\u4e2d\u5fc3\u7684UE\uff0c\u4f8b\u5982\u56fe\u4e2d\u7684UE3\u548cUE4\u3002\u6b64\u65f6\uff0cUE\u53ea\u5360\u7528\u5355\u4e2aRRU\u7684\u65f6\u9891\u8d44\u6e90\uff0c\u5373\u7269\u7406\u5c0f\u533a\u4e0b\u7684RRU\u5728\u76f8\u540c\u7684\u65f6\u9891\u8d44\u6e90\u4e0a\u4e3a\u7ed9\u4e0d\u540c\u7684UE\u53d1\u9001\u4e0d\u540c\u7684\u6570\u636e\uff0c\u5373\u8fdb\u884c\u8d44\u6e90\u590d\u7528\u3002\u5982\u56fe\u4e2d\u7684UE3\u548cUE4\u5206\u522b\u63a5\u6536\u4eceRRU3\u548cRRU2\u72ec\u7acb\u53d1\u9001\u7684\u6570\u636e\uff0c\u4f46\u5360\u7528\u540c\u6837\u7684\u65f6\u9891\u8d44\u6e90\u3002<\/p>\n 2.2.2 \u4e0b\u884c\u7528\u6237\u5c5e\u6027\u5224\u51b3<\/p>\n \u7ec8\u7aef\u7528\u6237\u5c5e\u6027\u5224\u51b3\u662feNodeB\u6839\u636e\u4e0a\u884c\u94fe\u8def\u6d4b\u91cfUE\u5230\u5404RRU\u7684\u94fe\u8def\u635f\u8017(SRS)\u8ba1\u7b97\u4e0b\u884c\u7b49\u6548RSRP\uff0c\u518d\u6839\u636eRSRP\u8ba1\u7b97\u4e0d\u540c\u5de5\u4f5cRRU\u96c6\u5408\u7684\u9694\u79bb\u5ea6\uff0c\u5c06\u9694\u79bb\u5ea6\u4e0e\u5224\u51b3\u95e8\u9650\u8fdb\u884c\u6bd4\u8f83\uff0c\u4e3aUE\u9009\u62e9\u51fa\u5de5\u4f5cRRU\u96c6\u5408\uff0c\u7136\u540e\u6839\u636e\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u6570\u91cf\u786e\u5b9a\u7ec8\u7aef\u7528\u6237\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u8fd8\u662f\u8054\u5408\u8c03\u5ea6\u7528\u6237\u7684\u8fc7\u7a0b\u3002\u4e0a\u4e0b\u884c\u5206\u522b\u8fdb\u884c\u5224\u51b3\uff0c\u5224\u51b3\u5468\u671f\u901a\u8fc7\u7528\u6237\u5c5e\u6027\u5224\u51b3\u5468\u671f(\u73b0\u7f51\u4e3a2\u79d2)<\/strong>\u8bbe\u7f6e\uff1b<\/p>\n \u5728\u5de5\u4f5cRRU\u96c6\u4e2d\uff1a<\/p>\n \u5982\u679c\u5de5\u4f5cRRU\u96c6\u5408\u4e2d\u53ea\u6709\u4e00\u4e2aRRU\uff0c\u5219\u8be5UE\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u3002<\/p>\n \u5982\u679c\u5de5\u4f5cRRU\u96c6\u5408\u4e2d\u6709\u591a\u4e2aRRU\uff0c\u5219\u8be5UE\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002<\/p>\n \u5177\u4f53\u5224\u51b3\u65b9\u6cd5\u5982\u4e0b\uff1a<\/strong><\/p>\n \u5bf9\u4e8e\u4e0b\u884c\uff0c\u901a\u8fc7UE\u5230\u8fbeSFN\u5c0f\u533a\u5404\u4e2aRRU\u7684\u4fe1\u53f7\u5f3a\u5ea6RSRP\uff0c\u8ba1\u7b97\u51fa\u4e0b\u884c\u5404\u4e2aRRU\u5230\u8fbe\u8be5UE\u7684\u7b49\u6548RSRP\u3002\u7b49\u6548RSRP\u4ece\u5927\u5230\u5c0f\u8fdb\u884c\u6392\u5e8f\uff0c\u7b49\u6548RSRP\u6700\u5f3a\u7684RRU\u4e3a\u8be5UE\u7684\u76ee\u6807RRU\u3002\u518d\u4f9d\u6b21\u8ba1\u7b97\u4e0d\u540c\u5de5\u4f5cRRU\u7ec4\u5408\u4e0b\u7b49\u6548RSRP\u53e0\u52a0\u503c\u4e0e\u5269\u4f59RRU\u7684\u7b49\u6548RSRP\u53e0\u52a0\u503c\u4e4b\u6bd4\u503c\uff0c\u6b64\u6bd4\u503c\u79f0\u4e4b\u4e3a\u9694\u79bb\u5ea6\u3002\u5982\u679c\u9694\u79bb\u5ea6\u5927\u4e8e\u7b49\u4e8e\u8be5\u95e8\u9650\uff0c\u5219\u8be5RRU\u7ec4\u5408\u4e3a\u8be5UE\u7684\u5de5\u4f5cRRU\u96c6\u5408\u3002\u518d\u6839\u636e\u5de5\u4f5cRRU\u96c6\u5408\u4e2dRRU\u4e2a\u6570\u786e\u5b9aUE\u7684\u5c5e\u6027\uff0c\u5982\u679c\u5de5\u4f5cRRU\u96c6\u5408\u4e2d\u53ea\u6709\u4e00\u4e2aRRU\uff0c\u5219\u8be5UE\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\uff0c\u5426\u5219\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002\u7b97\u6cd5\u6d41\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n \u00b4 \u6d41\u7a0b\u8bf4\u660e\u5982\u4e0b:<\/strong><\/p>\n a) <\/strong>\u6d4b\u91cf\u4e8b\u4ef6\u89e6\u53d1UE\u5c5e\u6027\u5224\u51b3\uff0ceNodeB\u6839\u636e\u7ec8\u7aef\u7528\u6237\u5230\u5404\u5c04\u9891\u6a21\u5757\u7684\u4e0a\u884c\u94fe\u8def\u635f\u8017\u8ba1\u7b97\u4e0b\u884c\u7b49\u6548RSRP\uff0ceNodeB\u5c06\u4e0b\u884c\u7b49\u6548RSRP\u964d\u5e8f\u6392\u5217\uff1b<\/p>\n b) <\/strong>eNodeB\u5c06\u7b49\u6548RSRP\u6700\u5f3a\u7684\u5c04\u9891\u6a21\u5757\u4f5c\u4e3a\u76ee\u6807\u5c04\u9891\u6a21\u5757\uff1b<\/p>\n c) <\/strong>eNodeB\u901a\u8fc7\u8ba1\u7b97\u76ee\u6807\u5c04\u9891\u6a21\u5757\u4e0e\u5176\u4ed6\u5c04\u9891\u6a21\u5757\u4e4b\u95f4\u7684\u7b49\u6548RSRP\u7684\u5dee\u503c\uff0c\u5c06\u8be5\u5dee\u503c\u4e0e\u5224\u51b3\u95e8\u9650\u8fdb\u884c\u6bd4\u8f83\uff0c\u5982\u679cRSRP\u5dee\u503c\u5c0f\u4e8e\u7b49\u4e8e\u5224\u51b3\u95e8\u9650\uff0c\u5219\u8be5\u5c04\u9891\u6a21\u5757\u5f52\u5c5e\u4e3a\u8be5\u7ec8\u7aef\u7528\u6237\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u3002\u4e3a\u9632\u6b62\u5c04\u9891\u6a21\u5757\u5728\u5de5\u4f5c\u6a21\u5757\u96c6\u5408\u4e2d\u4e52\u4e53\u8fdb\u51fa\uff0c\u53ef\u8bbe\u7f6e\u7528\u6237\u5c5e\u6027\u5224\u51b3\u5e45\u5ea6\u8fdf\u6ede\u3002\u5f53\u53c2\u6570 \u201cSfnDlSchAttriAdjsSwitch(SFN\u4e0b\u884c\u8c03\u5ea6\u5c5e\u6027\u8c03\u6574\u5f00\u5173)\u201d\u6253\u5f00\uff0c\u4e14\u5c04\u9891\u6a21\u5757\u4e0e\u76ee\u6807\u5c04\u9891\u6a21\u5757\u7b49\u6548RSRP\u5dee\u503c\u5c0f\u4e8e30dB\u65f6\uff0c\u5728\u7b49\u6548RSRP\u5dee\u503c\u4e0e\u5224\u51b3\u95e8\u9650\u5bf9\u6bd4\u5224\u51b3\u7528\u6237\u5c5e\u6027\u7684\u57fa\u7840\u4e0a\uff0c\u589e\u52a0\u5c04\u9891\u6a21\u5757\u7ea7PRB\u5229\u7528\u7387\u7684\u5224\u65ad\u3002\u5f53\u5c04\u9891\u6a21\u5757\u4e0a\u8d1f\u8f7d\u5c0f\u4e8e30%\uff0c\u4e5f\u4f1a\u5224\u65ad\u4e3a\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u3002\u8be5\u4f18\u5316\u80fd\u591f\u63d0\u5347\u7528\u6237\u7684\u611f\u77e5\u901f\u7387\uff0c\u51cf\u5c11\u56e0\u4e3a\u590d\u7528\u8d44\u6e90\u4e0d\u80fd\u88ab\u6709\u6548\u5229\u7528\u5e26\u6765\u7684KPI\u4e0b\u964d\u3002SFN\u5c0f\u533a\u8d1f\u8f7d\u72b6\u6001\u4e0d\u540c\u65f6\uff0c\u91c7\u7528\u4e0d\u540c\u7684\u9694\u79bb\u5ea6\u95e8\u9650\u504f\u7f6e, \u5982\u4e0b\u6240\u793a\uff1a<\/p>\n \u5f53SFN\u5c0f\u533a\u7531\u4f4e\u8d1f\u8f7d\u5411\u9ad8\u8d1f\u8f7d\u53d8\u5316\uff0cSFN\u5c0f\u533a\u7684PRB\u5229\u7528\u7387\u5c0f\u4e8e\u7b49\u4e8e\u201cSFN\u4e0b\u884c\u9ad8\u8d1f\u8f7d\u95e8\u9650\u201d\u65f6\uff0c\u9694\u79bb\u5ea6\u95e8\u9650\u504f\u7f6e\u91c7\u7528\u201c\u4e0b\u884c\u4f4e\u8d1f\u8f7d\u6863\u7684\u9694\u79bb\u5ea6\u95e8\u9650\u504f\u7f6e\u201d\uff0c\u4f7f\u7528\u6237\u5c3d\u91cf\u5904\u4e8e\u8054\u5408\u8c03\u5ea6\uff0c\u5229\u7528\u591a\u4e2a\u5c04\u9891\u6a21\u5757\u8d44\u6e90\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002<\/strong><\/p>\n \u5f53SFN\u5c0f\u533a\u7531\u9ad8\u8d1f\u8f7d\u5411\u4f4e\u8d1f\u8f7d\u53d8\u5316\uff0cSFN\u5c0f\u533a\u7684PRB\u5229\u7528\u7387\u5927\u4e8e\u7b49\u4e8e\u201cSFN\u4e0b\u884c\u4f4e\u8d1f\u8f7d\u95e8\u9650\u201d\u65f6\u9694\u79bb\u5ea6\u95e8\u9650\u504f\u7f6e\u91c7\u7528\u201c\u4e0b\u884c\u9ad8\u8d1f\u8f7d\u6863\u7684\u9694\u79bb\u5ea6\u95e8\u9650\u504f\u7f6e\u201d\uff0c\u4f7f\u7528\u6237\u5c3d\u91cf\u5904\u4e8e\u72ec\u7acb\u8c03\u5ea6\u4ee5\u5c3d\u91cf\u8fdb\u884c\u7a7a\u5206\u590d\u7528\u3001\u63d0\u5347\u7f51\u7edc\u9891\u8c31\u6548\u7387\u3001\u6ee1\u8db3\u5c0f\u533a\u603b\u5bb9\u91cf\u8981\u6c42\u3002<\/strong><\/p>\n d) <\/strong>eNodeB\u6839\u636e\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u5c04\u9891\u6a21\u5757\u4e2a\u6570\u786e\u5b9a\u7ec8\u7aef\u7528\u6237\u7684\u5c5e\u6027\u3002<\/p>\n \u5982\u679c\u7ec8\u7aef\u7528\u6237\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u53ea\u542b\u4e00\u4e2a\u5c04\u9891\u6a21\u5757\uff0c\u5219\u8be5\u7ec8\u7aef\u7528\u6237\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u3002<\/strong><\/p>\n \u5982\u679c\u7ec8\u7aef\u7528\u6237\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u5b58\u5728\u591a\u4e2a\u5c04\u9891\u6a21\u5757\uff0c\u5219\u8be5\u7ec8\u7aef\u7528\u6237\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002\u5f53 \u201cSFN\u4e0b\u884cRBLER\u4f18\u5316\u5f00\u5173\u201d\u6253\u5f00\uff0c\u82e5\u7ec8\u7aef\u7528\u6237\u5728100ms\u5185RBLER\u7edf\u8ba1\u6b21\u6570\u5927\u4e8e\u7b49\u4e8e2\u6b21\uff0c\u4e14\u4e3a\u975eTM9\/TM10\u7528\u6237\u65f6\uff0c\u5219\u8be5\u7528\u6237\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002<\/strong><\/p>\n 2.2.3 \u4e0a\u884c\u7528\u6237\u5c5e\u6027\u5224\u51b3<\/p>\n eNodeB\u6839\u636e\u4e0a\u884c\u7684UE\u5230\u5404RRU\u7684\u4e0a\u884cSINR\u6765\u9009\u62e9\u76ee\u6807RRU\uff0c\u8ba1\u7b97\u76ee\u6807RRU\u4e0e\u5176\u4ed6RRU\u7684RSRP\u5dee\u503c\u3002\u8be5\u5dee\u503c\u4e0e\u5224\u51b3\u95e8\u9650\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ee5\u9009\u62e9\u5de5\u4f5cRRU\u96c6\u5408\u3002<\/p>\n \u5728\u5de5\u4f5cRRU\u96c6\u4e2d\uff1a<\/p>\n \u5982\u679c\u5de5\u4f5cRRU\u96c6\u5408\u4e2d\u53ea\u6709\u4e00\u4e2aRRU\uff0c\u5219\u8be5UE\u4e3a\u72ec\u7acb\u8c03\u5ea6\u7528\u6237\u3002<\/p>\n \u5982\u679c\u5de5\u4f5cRRU\u96c6\u5408\u4e2d\u6709\u591a\u4e2aRRU\uff0c\u5219\u8be5UE\u4e3a\u8054\u5408\u8c03\u5ea6\u7528\u6237\u3002<\/p>\n \u5177\u4f53\u5224\u51b3\u6d41\u7a0b\u5982\u4e0b\uff1a<\/strong><\/p>\n \u6d41\u7a0b\u8bf4\u660e\u5982\u4e0b:<\/strong><\/p>\n a) <\/strong>\u6d4b\u91cf\u4e8b\u4ef6\u89e6\u53d1UE\u5c5e\u6027\u5224\u51b3\uff0c\u5404\u5c04\u9891\u6a21\u5757\u6d4b\u91cf\u7ec8\u7aef\u7528\u6237\u5230\u8fbe\u5404\u5c04\u9891\u6a21\u5757\u7684SINR\u548c<\/p>\n RSRP\uff0ceNodeB\u5bf9SINR\u548cRSRP\u5206\u522b\u8fdb\u884c\u964d\u5e8f\u6392\u5217<\/p>\n b) <\/strong>eNodeB\u9009\u62e9\u76ee\u6807\u5c04\u9891\u6a21\u5757\uff1a\u201cSFN\u4e0a\u884c\u76ee\u6807RRU\u81ea\u9002\u5e94\u9009\u62e9\u5f00\u5173\u201d<\/p>\n \u5173\u95ed\u65f6<\/strong>\uff0c\u4ec5\u4f7f\u7528SINR\u8fdb\u884c\u9009\u62e9\uff0c\u5373\u9009\u62e9SINR\u503c\u6700\u5927\u7684\u5c04\u9891\u6a21\u5757\u4e3a\u76ee\u6807\u5c04\u9891\u6a21\u5757; <\/p>\n \u6253\u5f00\u65f6<\/strong>\uff0c\u5219\u81ea\u9002\u5e94\u4f7f\u7528SINR\u6216RSRP\u9009\u62e9\u76ee\u6807\u5c04\u9891\u6a21\u5757\u3002\u7b2c\u4e00\u6b21\u4f18\u5148\u91c7\u7528SINR\u8fdb\u884c\u9009\u62e9\uff0c\u5f53SFN\u5c0f\u533a\u5185\u7684RRU\u95f4\u8ddd\u8f83\u5927\u4e14\u8986\u76d6\u534a\u5f84\u4e0d\u5747\u8861\u65f6\uff0c\u975e\u76ee\u6807\u5c04\u9891\u6a21\u5757\u7684SINR\u6d4b\u91cf\u4e0d\u51c6\u786e\uff0c\u4f1a\u81ea\u52a8\u89e6\u53d1\u4f7f\u7528RSRP\u9009\u62e9\u76ee\u6807\u5c04\u9891\u6a21\u5757\u3002\u91c7\u7528RSRP\u9009\u62e9\u65f6\uff0c\u9009\u62e9\u4e0e\u5176\u4ed6\u5c04\u9891\u6a21\u5757\u7684RSRP\u5dee\u503c\u5927\u4e8e\u7b49\u4e8e\u76ee\u6807RRU\u9009\u62e9RSRP\u504f\u7f6e\u95e8\u9650\uff0c\u4e14RSRP\u6700\u5927\u7684\u5c04\u9891\u6a21\u5757\u4e3a\u76ee\u6807\u5c04\u9891\u6a21\u5757\u3002<\/p>\n c) <\/strong>eNodeB\u8ba1\u7b97\u51fa\u7ec8\u7aef\u7528\u6237\u4e0a\u884c\u5230\u8fbe\u5404\u4e2a\u5c04\u9891\u6a21\u5757\u7684RSRP\u4e0eUE\u5230\u8fbe\u4e0a\u884c\u76ee\u6807\u5c04\u9891\u6a21\u5757\u7684RSRP\u5dee\u503c\uff1b<\/p>\n d) <\/strong>\u5982\u679cRSRP\u5dee\u503c\u5c0f\u4e8e\u7b49\u4e8e5dB\uff0c\u5219\u5224\u65ad\u8be5\u5c04\u9891\u6a21\u5757\u5f52\u5c5e\u4e3a\u8be5\u7ec8\u7aef\u7528\u6237\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\uff1b<\/p>\n e) <\/strong>\u5bf9\u4e8e\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\uff1a<\/p>\n \u5982\u679c\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u53ea\u6709\u4e00\u4e2a\u5c04\u9891\u6a21\u5757\uff0c\u5219\u5bf9\u8be5\u7ec8\u7aef\u7528\u6237\u8fdb\u884c\u72ec\u7acb\u8c03\u5ea6\u3002\u5982\u679c\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u4e2d\u6709\u591a\u4e2a\u5c04\u9891\u6a21\u5757\uff0c\u5219\u5bf9\u8be5\u7ec8\u7aef\u7528\u6237\u8fdb\u884c\u8054\u5408\u8c03\u5ea6\u3002<\/p>\n \u9488\u5bf9\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u96c6\u5408\u6ca1\u6709\u4ea4\u96c6\uff0c\u5373\u6ca1\u6709\u76f8\u540c\u7684\u5de5\u4f5c\u5c04\u9891\u6a21\u5757\u7684\u4e24\u4e2a\u7528\u6237\uff0c\u5f53 \u201cSFN\u4e0a\u884c\u8c03\u5ea6\u5f00\u5173\u201d\u5f00\u5173\u4e3a\u201cADAPTIVE(Adaptive scheduling)\u201d\u65f6\uff0c\u53ef\u4ee5\u91c7\u7528\u76f8\u540c\u7684RB\u8fdb\u884c\u8c03\u5ea6\uff0c\u6b64\u65f6\u8fd9\u4e24\u4e2a\u7528\u6237\u53eb\u505a\u914d\u5bf9\u7528\u6237\u3002\u914d\u5bf9\u7528\u6237\u987b\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6, (\u4ee5A\u3001B\u4e24\u4e2a\u7528\u6237\u4e3a\u4f8b)\uff1a<\/p>\n a. A\u7528\u6237\u5230\u5176\u76ee\u6807\u5c04\u9891\u6a21\u5757\u7684\u4fe1\u53f7\u5f3a\u5ea6\u4e0eB\u7528\u6237\u5230\u8be5\u5c04\u9891\u6a21\u5757\u7684\u4fe1\u53f7\u5f3a\u5ea6\u4e4b\u5dee\u5927\u4e8e\u914d\u5bf9\u5224\u51b3\u95e8\u9650\u201cSFN\u4e0a\u884c\u914d\u5bf9RSRP\u95e8\u9650\u201d\uff1b<\/p>\n b. B\u7528\u6237\u5230\u5176\u76ee\u6807\u5c04\u9891\u6a21\u5757\u7684\u4fe1\u53f7\u5f3a\u5ea6\u4e0eA\u7528\u6237\u5230\u8be5\u5c04\u9891\u6a21\u5757\u7684\u4fe1\u53f7\u5f3a\u5ea6\u4e4b\u5dee\u5927\u4e8e\u914d\u5bf9\u5224\u51b3\u95e8\u9650\u201cSFN\u4e0a\u884c\u914d\u5bf9RSRP\u95e8\u9650\u201d\uff0c\u4e24\u4e2a\u7528\u6237\u6240\u9700\u8981\u7684RB\u8d44\u6e90\u4e4b\u548c\u5927\u4e8e\u53ef\u7528RB\u6570(\u603bRB\u6570\u51cf\u53bb\u5176\u4ed6\u5df2\u8c03\u5ea6\u7528\u6237\u6240\u4f7f\u7528RB\u6570)\u3002<\/p>\n 3.1 SFN&ASFN\u5f00\u901a\u6761\u4ef6<\/p>\n \u76ee\u6807\uff1a\u89e3\u51b3\u5bc6\u96c6\u5efa\u7ad9\u4e0b(\u5305\u62ec\u666e\u901aRRU\u548cpRRU)\u7ad9\u95f4\u5e72\u6270\u95ee\u9898\u3001\u51cf\u5c11\u5c0f\u533a\u95f4\u5207\u6362\u3001\u63d0\u5347\u7528\u6237\u4f53\u9a8c\uff1b<\/p>\n \u4e3a\u786e\u4fddSFN\u83b7\u5f97\u589e\u76ca\uff0c\u91cd\u53e0\u8986\u76d6\u533a\u57df\u7528\u6237\u5206\u5e03\u6bd4\u4f8b\u5927\u4e8e20%~30%\uff0c\u5408\u5e76\u524d\u5c0f\u533aPRB\u5229\u7528\u7387\u4e4b\u548c\u5c0f\u4e8e45%\u53ef\u5408\u5e76\uff1b<\/p>\n \u5728\u9ad8\u8d1f\u8f7dPDCCH\u53d7\u9650\u573a\u666f\u4e0b\uff0c\u7531\u4e8e\u4e1a\u52a1\u91cf\u7684\u6539\u53d8\uff0c\u81ea\u9002\u5e94SFN\u76f8\u5bf9\u4e8eSFN\u6ca1\u6709\u7528\u6237\u611f\u77e5\u901f\u7387\u7684\u589e\u76ca\uff0c\u6545\u9700\u4fdd\u8bc1SFN\u524d\u5fd9\u65f6\u8d1f\u8f7d\u4e0d\u5b9c\u8fc7\u9ad8\uff1b<\/p>\n \u9ad8\u94c1\u5c0f\u533a\u540c\u65f6\u8986\u76d6\u516c\u7f51\u7684\u573a\u666f\uff0c\u9700\u8981\u7efc\u5408\u8003\u8651\u8d1f\u8f7d\u548cKPI\u5f71\u54cd\u6765\u8fdb\u884c\u5408\u5e76\uff0c\u5e76\u4e14\u5c06\u8fde\u7eed\u8986\u76d6\u7684\u5c0f\u533a\u76f4\u63a5\u7ec4SFN\uff1b<\/p>\n \u5f00\u901aASFN\u529f\u80fd\u7279\u6027\u9700\u63d0\u524d\u505a\u597dLicense\u8d44\u6e90\u9700\u6c42\u7533\u8bf7\u3002<\/p>\n SFN\u7279\u6027\u90e8\u7f72\u80fd\u591f\u5728\u5982\u4e0b\u51e0\u4e2a\u65b9\u9762\u63d0\u5347\u589e\u76ca\uff1a\u9664\u4e86\u7528\u6237\u5728\u4ea4\u53e0\u533a\u57df\u7684\u5e72\u6270\uff0c\u63d0\u5347\u6247\u533a\u8986\u76d6\u4ea4\u53e0\u533a\u57df\u7684SINR\uff0c\u63d0\u5347\u4ea4\u53e0\u533a\u57df\u7684\u4e0b\u884c\u7528\u6237\u4f53\u9a8c\u3002\u5bf9\u6bd4\u666e\u901a\u5c0f\u533a\uff0c\u51cf\u5c11\u4e86\u7528\u6237\u5728\u8986\u76d6\u533a\u57df\u5207\u6362\uff0c\u5207\u6362\u51cf\u5c11\u4e3b\u8981\u662f\u540c\u7ad9\u5c0f\u533a\u7684\u5207\u6362\u3002<\/p>\n ASFN\u6280\u672f\u5229\u7528\u7a7a\u5206\u590d\u7528\u6280\u672f\uff0c\u5bf9\u6bd4SFN\u53ef\u4ee5\u63d0\u5347\u5c0f\u533a\u7684\u5bb9\u91cf\u3002\u4e14\u5f53\u7f51\u7edc\u4e3a\u4e2d\u4f4e\u8d1f\u8f7d\u65f6\u5efa\u8bae\u5f00\u901a\u81ea\u9002\u5e94SFN\/SDMA\u7279\u6027\uff0c\u80fd\u591f\u63d0\u5347\u7f51\u7edc\u8986\u76d6\u8d28\u91cf\uff0c\u51cf\u5c11\u5207\u6362\uff0c\u4ece\u800c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n 4.1 ASFN\u7279\u6027\u63a8\u5e7f\u5efa\u8bae<\/p>\n \u9ad8\u901f\u94c1\u8def\u8986\u76d6\u573a\u666f\uff1a\u5fd9\u5c0f\u533a\u5efa\u8bae\u5f00\u542f\u81ea\u9002\u5e94SFN\/SDMA\u529f\u80fd\uff1b<\/p>\n \u91cd\u53e0\u8986\u76d6\u8f83\u4e25\u91cd\u800c\u6682\u65f6\u65e0\u6cd5\u4e0d\u5177\u5907RF\u8c03\u6574\u7684\u533a\u57df\uff0c\u53ef\u5148\u8fdb\u884cSFN\u529f\u80fd\u7684\u5f00\u901a\uff0c\u7136\u540e\u518d\u901a\u8fc7ASFN\u7279\u6027\u63d0\u5347\u7528\u6237\u4f7f\u7528\u611f\u77e5\uff1b<\/p>\n \u7ad9\u70b9\u5bc6\u5ea6\u9ad8\u4e14\u5207\u6362\u8f83\u591a\u7684\u4f4e\u8bdd\u52a1\u573a\u666f\u533a\u57df\u53ef\u4ee5\u5efa\u8bae\u5f00\u901aSFN\u4ee5\u53caASFN\u529f\u80fd\u7279\u6027\uff0c\u964d\u4f4e\u5e72\u6270\uff0c\u63d0\u5347CQI\u4f18\u826f\u6bd4\uff1b<\/p>\n LampSite\u8986\u76d6\u7684\u5927\u573a\u9986\u3001\u98df\u5802\u3001\u5b66\u751f\u5bbf\u820d\u7b49\u7531\u4e8e\u8bdd\u52a1\u539f\u56e0\u5206\u5e03\u7684\u7269\u7406\u5c0f\u533a\u8f83\u591a\u573a\u666f\u4e0b\u5efa\u8baeSFN\u548cASFN\u7279\u6027\u5f00\u901a\uff1b<\/p>\n \u611f\u8c22\u60a8\u7684\u9605\u8bfb\uff0c\u6b22\u8fce\u5404\u4f4d\u5173\u6ce8\uff0c\u8f6c\u53d1\uff0c\u8bc4\u8bba\uff01<\/strong><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f00_\u7531\u4e8e\u4e00\u4e2a\u6216\u591a\u4e2a\u7f51\u7edc\u5c5e\u6027\u9875\u5df2\u7ecf\u6253\u5f001\u6982\u8ff0LTE\u540c\u9891\u7f51\u7edc\u5b58\u5728\u4e25\u91cd\u7684\u4fe1\u53f7\u5e72\u6270\uff0c\u7279\u522b\u662f\u5728\u57ce\u533a\u5bc6\u96c6...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8266"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=8266"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8266\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=8266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=8266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=8266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}3 \u7279\u6027\u5b9e\u65bd<\/h2>\n
4 \u603b\u7ed3<\/h2>\n