GSM无线网络优化流程华为TBF建立成功率分析

中国移动.四川公司.网络管理.技术支援

Technical Support Centre of SCMCC

14:00:00 22/10/2009 15:00:00 22/10/2009 16:00:00 22/10/2009 17:00:00 22/10/2009 18:00:00 22/10/2009 19:00:00 22/10/2009 20:00:00 22/10/2009 21:00:00 22/10/2009 22:00:00 22/10/2009 23:00:00 23/10/2009 00:00:00 23/10/2009 01:00:00 23/10/2009 02:00:00 23/10/2009 03:00:00 23/10/2009 04:00:00 23/10/2009 05:00:00 23/10/2009 06:00:00 23/10/2009 07:00:00 23/10/2009 澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62广广广广广广广广广广广广广广广广广广0.02% 0.00% 0.00% 0.01% 0.05% 0.05% 0.07% 0.24% 0.17% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.1597.10% 97.33% 97.67% 97.89% 97.23% 97.29% 97.74% 97.41% 97.41% 96.96% 98.16% 99.03% 99.63% 99.41% 99.09% 98.72% 97.80% 97.52.19% 0.49% 0.22% 2.41% 5.25% 5.53% 6.87% 9.63% 9.59% 0.04% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 13.193.85% 96.32% 96.84% 94.56% 91.54% 91.03% 90.52% 86.68% 86.65% 96.75% 98.62% 99.12% 99.41% 99.15% 98.15% 98.03% 97.06% 83.0

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中国移动.四川公司.网络管理.技术支援

Technical Support Centre of SCMCC

08:00:00 23/10/2009 09:00:00 23/10/2009 10:00:00 23/10/2009 11:00:00 23/10/2009 12:00:00 23/10/2009 13:00:00 23/10/2009 14:00:00 23/10/2009 15:00:00 23/10/2009 16:00:00 23/10/2009 17:00:00 23/10/2009 18:00:00 23/10/2009 19:00:00 23/10/2009 20:00:00 23/10/2009 21:00:00 23/10/2009 22:00:00 23/10/2009 23:00:00 24/10/2009 00:00:00 24/10/2009 01:00:00 24/10/2009 澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62% 广广广广广广广广广广广广广广广广广广0.71% 5.02% 4.75% 1.05% 0.03% 0.93% 0.56% 0.02% 0.00% 0.00% 0.15% 0.10% 0.04% 0.16% 0.25% 0.00% 0.00% 0.003% 96.06% 90.79% 90.57% 95.32% 97.57% 96.27% 96.84% 98.22% 98.11% 98.36% 97.99% 97.80% 97.90% 97.64% 96.97% 97.81% 99.11% 99.43% 18.51% 30.89% 32.72% 19.03% 3.03% 20.98% 19.34% 2.55% 0.01% 0.25% 4.02% 4.10% 2.88% 5.39% 5.52% 0.00% 0.00% 0.009% 77.01% 64.19% 60.76% 77.69% 93.72% 76.06% 78.21% 95.28% 97.02% 98.05% 93.59% 94.01% 95.18% 92.23% 92.07% 98.27% 98.86% 99.2

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中国移动.四川公司.网络管理.技术支援

Technical Support Centre of SCMCC

02:00:00 24/10/2009 03:00:00 24/10/2009 04:00:00 24/10/2009 05:00:00 24/10/2009 06:00:00 24/10/2009 07:00:00 24/10/2009 08:00:00 24/10/2009 09:00:00 24/10/2009 10:00:00 24/10/2009 11:00:00 24/10/2009 12:00:00 24/10/2009 13:00:00 24/10/2009 14:00:00 澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 S62澳3 % 广广广广广广广广广广广广0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 3% 99.85% 99.19% 98.60% 99.27% 98.58% 98.22% 98.13% 98.41% 98.42% 98.01% 97.95% 98.27% % 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.14% 0.00% 0.00% 0% 99.76% 99.64% 99.36% 99.41% 98.79% 97.98% 97.97% 97.71% 97.53% 97.51% 97.51% 97.95% 问题总结：日常优化过程中，经常遇到资源紧张而又没法通过硬件扩容等常规手段解决的情况，这时需要尽可能发挥网络参数的作用，通过挖掘参数潜力，可以解决网络的问题。

2、高技校无资源失败和手机无响应优化

问题描述：从统计分析，高技校2小去的上行和下行都存在无资源和手机无响应导致TBF建立失败，忙时手机无响应达到20000多次，无资源无信道资源导致上行EGPRS TBF建立失败次数达到90000多次；

问题分析：查看告警和上下行平衡，并没有发现硬件问题，通过统计也未发现

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中国移动.四川公司.网络管理.技术支援

Technical Support Centre of SCMCC

存在干扰和越区覆盖

问题处理：查看参数，对其修改如下：

CRO 0->2,pt 0->31,最小接入电平12->15,11BIT接入是->否,GAMMA

14->2,PDTCH增加6

优化前后指标对比: 起始时间 A9203:无A9204:手A9003:无A9004:手信道资源机无响应信道资源机无响应导致上行导致上行导致上行导致上行EGPRS TBFEGPRS TBFGPRS TBFGPRS TBF建立失败建立失败建立失败建立失败小区 次数 次数 次数 次数 高技校14/10/2009 12:00:00 2 844 1983 1229 752 高技校14/10/2009 13:00:00 2 255 1374 393 599 高技校14/10/2009 14:00:00 2 12 295 4 188 高技校14/10/2009 15:00:00 2 0 188 0 153 高技校14/10/2009 16:00:00 2 5 982 16 164 高技校14/10/2009 17:00:00 2 117 901 92 175 高技校14/10/2009 18:00:00 2 557 1751 857 795 高技校14/10/2009 19:00:00 2 280 1180 358 477 高技校14/10/2009 20:00:00 2 1 308 0 179 高技校14/10/2009 21:00:00 2 789 1090 877 318 高技校14/10/2009 22:00:00 2 44403 4247 21369 1226 高技校14/10/2009 23:00:00 2 66293 3971 21580 646 15/10/2009 00:00:00 高技校2311 2386 2082 754

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