V-SMF (Visited SMF) in 5G Network
V-SMF (Visited SMF) is the session management function responsible for the user sessions of the UE, while the UE is roaming in the visited network. It interacts with the Home SMF (H-SMF) in the home network of the UE, to ensure seamless session management and mobility support for the roaming subscriber.
The V-SMF needs to align the policies enforced in the visited network with the policies defined by the home network's policy control functions, such as the Home Policy Control Function (H-PCF).
In addition, the it needs to ensure accurate charging and billing for the roaming subscriber's data usage, which may involve interactions with the home network's charging functions.
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What is 5G CUPS in 5G Network ?
In this post we will learn what is 5G CUPS. CUPS refers to "control plane and user plane separation". 5G CUPS means that the 5G network is separated into "control plane" and "user plane". In order to understand CUPS, first we should know that in order for the UE to be able to exchange user…
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5G Core Network Architecture
In this post, we will learn 5G Network Architecture. The control plane in 5G network includes the AMF, the SMF, the AUSF, the UDM, and the PCF. While the user plane includes the UPF. The control plane is not including those network functions only, there are another network functions in the control plane, that will be discussed later. In…
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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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