Chapter 3: Basic Architecture — 5G Mobile
The first is to connect new 5G base stations to existing 4G-based EPCs, and then incrementally evolve the Mobile Core by refactoring the components
A. BS Requirements Currently there are two options for connecting fifth-generation base stations to the whole mobile network. A new cloud-based network can be deployed, either 5G BS should be connected to a 4G network (LTE or LTE Advanced Pro).
These names originate from the 3GPP study of 5G radio access technologies documented within 3GPP Technical Report 38.801. Both architectures have Base Stations that connect to the 5G Core Network. The 'option 2' architecture is based on a gNode B connected to the 5G Core Network.
In 5G, base stations are known as gNB, where the “g” stands for next Generation. The Mobile Core is a bundle of functionality (conventionally packaged as one or more devices) that serves several purposes. Provides Internet (IP) connectivity for both data and voice services. Ensures this connectivity fulfills the promised QoS requirements.
A prototype of 5G base station can be made on the basis of various modules and tools for fast prototyping. Base station types 1-O and 2-O cannot be implemented on fast prototyping tools due to their design features.
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