Home Location Register (HLR)
Visitor Location Register (VLR)
Equipment Identity Register (EIR)
Mobile Switching Center (MSC) (vendor dependent)
Authentication Center (AUC)
Serving GPRS Support Node (SGSN) (vendor dependent)
Aperture GPRS Support Node (GGSN)
From Global Service for Mobile (GSM) advice radio network, the afterward elements cannot be reused
Abject abject ambassador (BSC)
Abject transceiver abject (BTS)
They can abide in the arrangement and be acclimated in bifold arrangement operation area 2G and 3G networks co-exist while arrangement clearing and new 3G terminals become accessible for use in the network.
The UMTS arrangement introduces new arrangement elements that action as defined by 3GPP:
Node B (base transceiver station)
Radio Arrangement Ambassador (RNC)
Media Aperture (MGW)
The functionality of MSC and SGSN changes if traveling to UMTS. In a GSM arrangement the MSC handles all the ambit switched operations like abutting A- and B-subscriber through the network. SGSN handles all the packet switched operations and transfers all the abstracts in the network. In UMTS the Media aperture (MGW) yield affliction of all abstracts alteration in both ambit and packet switched networks. MSC and SGSN ascendancy MGW operations. The nodes are renamed to MSC-server and GSN-server.
Visitor Location Register (VLR)
Equipment Identity Register (EIR)
Mobile Switching Center (MSC) (vendor dependent)
Authentication Center (AUC)
Serving GPRS Support Node (SGSN) (vendor dependent)
Aperture GPRS Support Node (GGSN)
From Global Service for Mobile (GSM) advice radio network, the afterward elements cannot be reused
Abject abject ambassador (BSC)
Abject transceiver abject (BTS)
They can abide in the arrangement and be acclimated in bifold arrangement operation area 2G and 3G networks co-exist while arrangement clearing and new 3G terminals become accessible for use in the network.
The UMTS arrangement introduces new arrangement elements that action as defined by 3GPP:
Node B (base transceiver station)
Radio Arrangement Ambassador (RNC)
Media Aperture (MGW)
The functionality of MSC and SGSN changes if traveling to UMTS. In a GSM arrangement the MSC handles all the ambit switched operations like abutting A- and B-subscriber through the network. SGSN handles all the packet switched operations and transfers all the abstracts in the network. In UMTS the Media aperture (MGW) yield affliction of all abstracts alteration in both ambit and packet switched networks. MSC and SGSN ascendancy MGW operations. The nodes are renamed to MSC-server and GSN-server.
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