电信网络性能质量测量
作者：千里孤行(http://blog.csdn.net/yanghehong)
为什么要有质量和性能的测量
• 验证系统架构，配置
• 定位已有问题
• 及早发现潜在问题
• 为系统架构演进提供数据支持
服务质量的四个视角
服务质量的网络部分和非网络部分
从网络角度出发， QoS也受端到端的各个网络和部件影响
测量面向的用户群
测量的指标，需要考虑到测量面向的各个用户群。3GPP列举了几个不同方面的用户群，基本上从客户层面到研发层面都有涉及：
1. Network Operator's Business Community
- to guarantee the financial health and welfare of the Operating Company.
- to guarantee the financial health and welfare of the Operating Company.
2. Network Operator's Maintenance Community
- to reduce Mean Time to Repair faults that occur within the network equipment of the Operating Company
- to reduce Mean Time to Repair faults that occur within the network equipment of the Operating Company
3. Network Operator's Traffic Engineering Community
- keep the capacity of the network equipment within 1) the Operating Company's design criteria for the quality of service based on growth of the subscriber base, 2) changes in usage patterns based on pricing strategies and 3) introduction of new services.
- keep the capacity of the network equipment within 1) the Operating Company's design criteria for the quality of service based on growth of the subscriber base, 2) changes in usage patterns based on pricing strategies and 3) introduction of new services.
4. Network Operator's Customer Care Community
- I nterfacing with the end-user customers of offered services for the purpose of establishing and maintaining end-user customer satisfaction.
- I nterfacing with the end-user customers of offered services for the purpose of establishing and maintaining end-user customer satisfaction.
5. Equipment Vendor's Performance Modelling Community
- to guarantee that the models used during analysis and design phases conform to real-world observations of the network equipment of the Operating Company.
- to guarantee that the models used during analysis and design phases conform to real-world observations of the network equipment of the Operating Company.
6. Equipment Vendor's Development Engineering Community
