华为GSM网规网优案例（经典）

小乔

目 录
第 1 章 切换问题 ........................................................................................................................1
1.1 案例 1：小区层级设置不同导致切换失败增多 ...................................................................... 1
1.1.1 现象描述： ................................................................................................................. 1
1.1.2 告警信息： ................................................................................................................. 1
1.1.3 原因分析： ................................................................................................................. 1
1.1.4 处理过程： ................................................................................................................. 1
1.1.5 建议与总结：.............................................................................................................. 2
1.2 案例 2：关闭半速率调整允许开关导致无法发生全-半速率切换............................................ 2
1.2.1 现象描述： ................................................................................................................. 2
1.2.2 告警信息： ................................................................................................................. 2
1.2.3 原因分析： ................................................................................................................. 2
1.2.4 处理过程： ................................................................................................................. 3
1.2.5 建议与总结：.............................................................................................................. 3
1.3 案例 3：小区数据配置错误导致切换差................................................................................. 3
1.3.1 现象描述： ................................................................................................................. 3
1.3.2 告警信息： ................................................................................................................. 3
1.3.3 原因分析： ................................................................................................................. 3
1.3.4 处理过程： ................................................................................................................. 4
1.3.5 建议与总结：.............................................................................................................. 4
第 2 章 拥塞问题 ........................................................................................................................5
2.1 案例 1：参数配置不恰当导致无硬件的小区出现 100％的拥塞率.......................................... 5
2.1.1 现象描述： ................................................................................................................. 5
2.1.2 告警信息： ................................................................................................................. 5
2.1.3 原因分析： ................................................................................................................. 5
2.1.4 处理过程： ................................................................................................................. 6
2.1.5 建议与总结：.............................................................................................................. 7
2.2 案例 2：由于 2M 传输线问题导致 SDCCH 占用请求异常多并且拥塞................................... 7
2.2.1 现象描述： ................................................................................................................. 7
2.2.2 告警信息： ................................................................................................................. 7
2.2.3 原因分析： ................................................................................................................. 7
2.2.4 处理过程： ................................................................................................................. 8
2.2.5 建议与总结：.............................................................................................................. 8
2.3 案例 3：CRO 参数和切换参数设置不合理导致部分小区高拥塞 ........................................... 9
2.3.1 现象描述： ................................................................................................................. 9
2.3.2 告警信息： ................................................................................................................. 9
2.3.3 原因分析： ................................................................................................................. 9
2.3.4 处理过程： ................................................................................................................. 9

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