at will help you with a jumpstart to build your own 5G network. In this chapter, we'll work through the following topics: A typical 5G network High-level components 5G network concepts 5G identifiers A typical 5G network A typical 5G network comprises three broad components that it uses to connect to the internet or to applications. Firstly, we have the radio component, also known as the access network. Then, we End-to-End Architecture Components, Concepts, Security, and Transport have the packet core network, which comprises various 5G NFs that we will discuss shortly. Thirdly, we see the transport network, which serves as the backbone of the 5G infrastructure and carries the user and control traffic between the access network and the packet core network, finally reaching the Application Functions (AFs) such as content servers or, simply put, the internet. In Figure 2.1, we can see the 5G infrastructure components: ACCESS NETWORK PACKET CORE NETWORK ((g)) ((o)) AMF, NRF, SMF, UPF, PCF, CHF, UDM, UDR etc. ((o)) ((o)) TRANSPORT NETWORK Scheduler HI-PHY LOW-PHY Mid-Haul Application Functions Scheduler HI-PHY Transport LOW-PHY ( Internet ) prime video Front-Haul Transport Figure 2.1 - 5G network overview Let's understand some of these components: ACCESS NETWORK: The access network comprises the radio components, basically the G-NodeB (gNB), also known as New Radio (NR). The access network is responsible for transmitting radio waves, which are received by the User Equipment (UE). This UE could include a mobile handset in a conventional use case, a vehicle in V2X communications, or sensors and SO on in advanced IoT use cases. The access network is hence the radio network and is restricted to communication over the air. PACKET CORE NETWORK: The packet core network comprises control and User Plane Functions (UPFs) that are responsible for the management of the subscriber session, charging, data processing, the Quality of Service (QoS), and SO on. We will go over each component shortly. TRANSPORT NETWORK: The transport n