Gp Interface in 2G/3G Telecom Network
Gp Interface is the interface between the SGSN and the GGSN that exist in different networks (different PLMNs). [ex: in case of Roaming.]
It is working in both the control plane and the user plane.
It uses GTP-C protocol in the control plane. And uses GTP-U protocol in the user plane.
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Roaming Architecture in 2G/3G
To understand Roaming architecture in GPRS, there are a few terms we have to understand, Outbound roaming The outbound roaming user simply means that you are travelling outside your country, but you still need to connect to the network of your country while you are outside. This means you are an outbound roamer. Inbound roaming,…
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SGSN, GGSN – 2G/3G Network Architecture and Interfaces
2G/3G Network Nodes The following graph shows the 2G/3G Network Architecture. It includes the SGSN, GGSN, HLR, CG, PDN, RNC, and BSC. SGSN GGSN, HLR, CG, PDN, RNC, BSC, 2G/3G Network Interfaces Now we know the nodes that exist in the 2G/3G network. Let's learn the interface names that exist between those nodes. Every interface…
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