s other data services. Dynamic measurements verify the impact of mobility management. Depending upon the outcome of the bearer investigation, optimisation of the bearer itself may be needed. This consists of a detailed audit of both the packet core and radio networks, consisting of parameter consistency checks and detailed analysis of performance statistics. MMS NETWORK PLANNING Recommended parameter settings are generated with follow-up verification of performance improvements. Once the MMS design is reviewed (including planning, dimensioning and configuration) and the bearer is optimised, MMS performance should be improved. Performance improve- ments can be checked by running some basic testing and comparing the results with the initial performance information. B.6 CONCLUSION MMS is the natural evolution of personal messaging. The first technology, SMS, already included in the GSM standard, although not supported in its early stages, is a well-known success story. MMS provides the power of the image. Its strength lies in the fact that it uses existing technology and infrastructure. The possible weaknesses may come from unforecast growth and its influence in voice and data services. Hence, proper planning of the system and its capability may help to reduce the impact of unexpected behaviour, although systematic update and close follow-up are required. MMS it is often considered to require strong system integration capabilities, although adequate system planning should be always a priority. Not only dimensioning, but rather an integrated MMS network plan covering the full network, is required to ensure that the network is working as expected. Testing and auditing the GPRS network in a systematic survey with the MMS system will provide a health check of the network capabilities as well as important findings affecting performance. Appendix C Location-based Services Johanna Kahkonen Nokia Networks C.1 INTRODUCTION Location-based services (LBS) are additional value provided in a wireless network, and are based on the