a graphic diagram of the current packet core network, preferably showing the VLAN level as well. Availability of this report (or equivalent information in several formats) is the starting point of the MMS planning activity. Traffic Mix (Size and Content) The concept of traffic mix in this context is more related to usage pattern and MMS service penetration. Another difference to consider with respect to SMS is that now we may have more than one MMSC involved in delivery, for example in the case of a distributed core network with MMSC in two or more sites, regardless of the clustering strategies. The basic traffic input for MMS can be further described as: MMS NETWORK PLANNING Existing Network inputs: MMS traffic inputs: - number of network elements - number of subscribers - current configuration (HW & SW) - MMS penetration - existing PS data subscribers and - MMS traffic per subscriber Network Elements capacity PS data traffic - traffic distribution over the time - number of PDP context per - External application and inter- subscriber MMSC traffic - existing SMS traffic MMS Solution & Network Dimensioning MMS planning inputs: - geographical traffic distribution Existing Network planning inputs: - clustering configuration - Application connectivity to the network - redundancy Traffic Impact Analysis & - Network topology - external applications Dimensioning results - Inter-MMSC and other - SMSC configuration - WAP-GW configuration connectivities MMS Solution planning Planning Report: - connectivity - impact on the existing network including transmission, radio, core and SS/ Network Monitoring Network Optimisation Figure B.3 MMS dimensioning and planning process flow MMS NETWORK PLANNING total number of subscribers and MMS penetration estimated number of MMS per subscriber per busy hour (different usage data can be given, for instance, MMS per user per month) GPRS penetration, in own network and other PLMNs if available average size of MMS in kilobytes (a good reference value to start with could be 30 kilobytes, but