合肥RNC12实施基于链路质量切换算法对比报告

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1、合肥RNC12实施基于链路质量切换算法对比报告―、问题描述:合肥TD网络因参加集团网络竞赛，核心网3月28日凌晨更改T305/T308定时器为16S/8S,语音掉话率由参赛调整前的0.13%恶化到约0.34%,近期合肥全网CS域掉话率指标如下时间时间语音话务量VP话务xn.分俎域业务(GByte)CS域RRC连接建立成功率(呼叫相关)CS域RAB建立成功率CS域无线接通率CS域无线掉话率3-23三12454.6214.8285.6399.64%99.94%99.57%0.14%3-24四12724.3413.8582.1699.66%99.94%99.60

2、%0.13%3-25五13542.26138779.319965%9994%9959%013%3-26六12476.4915.8479.7499.64%99.93%99.57%0.14%3-27日10631.2617.1981.1799.65%99.93%99.59%0.13%3-28一12330.1714.6880.9799.64%99.93%99.57%0.27%3-29二12931.6514.8981.9499.64%99.93%99.58%036%3-30三134167415.1682.9999.65%99.93%99.58%035%3-31四13

3、374.5815.5674.9299.64%99.92%99.57%0.36%4-1五13515.9317.1483.6799.65%99.93%99.58%036%4-2六12642.2217.3587.7399.63%99.94%99.57%0.34%4-3日10045.2915.5189.7799.63%99.93%99.55%0.36%4-4一8910.0514.0276.0499.65%99.94%99.59%0.33%4-5二8377.7815.5084.5199.66%99.93%99.60%034%4-6三11981.3514.7593.4

4、79964%99.93%99.57%035%4-7四12317.2814.4391.2199.63%99.92%99.55%0.36%4-8五13673.6715.5290.8299.64%99.92%99.56%0.35%4-9六11877.9414.8883.0699.64%99.93%99.57%0.31%4-10日10568.9714.3795.6799.61%99.93%99.54%033%4-11一13019.5115.5290.5599.64%99.93%99.57%031%4-12二13585.2715.1092.6799.65%99.93

5、%99.58%030%4-13三1347426158390859963%9993%99.55%030%4-14四125088315.1287.5399.64%99.93%99.57%026%4-15五12922.0815.3088.6499.66%99.93%99.59%025%4-16六1274763149299819964%9992%9956%027%4-17日11126.6915.0996.1399.63%99.92%99.55%027%二、问题分析:经过对历史数据进行统计分析，上行链路恶化导致的语音掉话为主要原因，输出全网掉话原因及其所占比例如下R

6、AB异常错误编码汇总占比总计2163100.00%IUBRLFAILUREIND(436996134)115653.44%RLCFAILURESRBRESET(436799455)28513.18%UNKNOWNREASON(-1)24611.37%DELOLDCCB(437127121)23710.96%RNCAPALCFGFAIL(436603606)843.88%RBWAITUERBCFGTIMEOUT(437127148)532.45%CUWAITUERSPTIMEOUT(437127132)452.08%CORRJiIOLPCERROR(4203

7、82724)210.97%RNCAPALCFGFAIL(436603622)130.60%PDCPFAILURE(436799458)90.42%UESECUMODETIMEOUT(437127151)50.23%OTHER(436799446)20.09%RBCUOVERLAPBACK(437127150)20.09%RRERRUUINTERFACEINVALIDCFGERRNULLTYPE(437127181)20.09%INNERPARAERROR(436406705)10.05%RLCFAILURETRBRESET(436799456)10.05%

8、UNKNOWNREASON(1)10.05%其中RNC12掉话原因