5G

Answer 1

The 3GPP defined 5G network architecture enables deployment using NFV and SDN.The 5G Architecture consists of two parts- The 5G Next Generation Radio Access Network (NG-RAN) and 5G Core Network (5GC).

The 5G NG-RAN consists of gNB and/or eNBs connected to the 5GC with an open interface. gNB and eNBs in 5G RAN are interconnected through the Xn interface. 5G enabled devices access 5G NG-RAN via the New Radio (NR) access air interface.

Some of the key logical Functional nodes in the 5G Core Network are shown here. These are:

1.The Access and Mobility Management function (AMF)

2.The Session Management Function (SMF)

3.The User Plane Function (UPF)

4.The Policy and Charging Function (PCF)

5.Unified Data Management (UDM)

6.The Authentication Server Function (AUSF)