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Radio Network Tuning and Optimization for Universal Mobile Telecommunications System (UMTS)


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MOTIVATION

3G networks are becoming commercially available all over the world
To check the functionality of the networks before commercial launch
Network designs are based on propagations models and simulations (coverage verification)
3G technology (WCDMA) is different from 2G
Tools and methods for 3G Networks

Differences compared to 2G

In General
- The Technology is more complicated (Overlapping cells, soft hand over, power control, cell breathing etc)
- High performance requirements on products (UE & Network nodes)
- In Particular for Tuning & Optimzation
- Process & tools are under development
- Co-located GSM/3G sites
- Shared Antenna System
- Inter-working with GSM

Tuning or Optimization, What is the difference

During Tuning
No traffic in the network, No subscribers
Network tuned only based on drive test data
Labour intensive with repeated drive test
All is about Pre-launch activities
During Optimization
Commercial traffic, subscribers using the network
Statistics used widely to monitor network performance
Drive testing just in case
All is about Post–launch activities