LADN (Local Area Data Network) and DNN (Data Network Name) are both integral components of the 5G network architecture, and they are related in the way they facilitate connectivity and service delivery. Here's how they interact within the 5G ecosystem:
-
LADN is focused on providing localized network services within a confined geographical area, ensuring high-quality connectivity for specific applications or services that require low latency, high bandwidth, or both. It's about optimizing network resources and performance for areas where these demands are particularly high.
-
DNN, on the other hand, serves as an identifier for the data network a user's device (UE) is trying to access through a PDU session. It specifies the destination network for the data traffic, guiding the 5G core network in routing this traffic to the correct external network or service.
-
The relationship between LADN and DNN becomes evident when a user within a LADN area initiates a PDU session. The DNN associated with that session will specify the local data network (LADN) as the destination. This ensures that the data traffic is optimally routed, taking advantage of the dedicated resources and enhanced connectivity features provided by the LADN.
-
Essentially, the DNN acts as the link that connects the user's PDU session to the specific LADN, enabling the network to apply the correct routing and service policies. This allows users within a LADN area to enjoy the benefits of localized, high-performance network services tailored to specific needs.
In summary, while LADN focuses on the localized optimization of network services, DNN facilitates the connection to these services by identifying the LADN as the destination for user data traffic. Together, they enhance the 5G network's ability to deliver specialized, high-quality services where they are most needed.