The different generations of mobile phone technology are based on a similar mobile network architecture. In order to help the understanding of the architecture of 2G, 3G and 4G networks; a generic mobile reference architecture is presented here. There are a number of different nomenclature for essentially the same thing running through these architectures. This model is an attempt to help compare the architectures for these different names and models.
Overall there are 4 different aspects to the Generic Mobile Architecture :
The table below gives an overview of the different components in 2G + 2.5G / 3G / 4G networks.
|User equipment||Mobile Station + SIM||Mobile Station + SIM||User Equipment + USIM||LTE User Equipment + LTE-USIM|
|Wireless Communications||900 / 1800 MHz TDMA||900 / 1800 MHz TDMA||2.1GHz CDMA||800 / 2.6GHz CDMA|
|Base Station||Base Station Subsystem BTS / BSC||Base Station Subsystem BTS / BSC||Node B RNC||eNode B MME|
|Operational Support||OMC VLR HLR AUC EIR||OMC VLR HLR AUC EIR||OMC VLR HLR AUC EIR||MME HSS|
|Core Network||Mobile Switching Centre||GPRS Switching Node = Serving GPRS Support Node and Gateway GSN||Serving GPRS Support Node and Gateway GSN||Serving Gateway an Packet Gateway|
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