In this lesson you will know that,
- The core network in 2G and 3G is the same.
- It contains the SGSN which authenticates the UE and tracks its location.
- The HLR that stores subscription data for users.
- And The GGSN that connects the core network to the PDN.
- The access network in 2G contains the BTS and the BSC.
- While the access network in 3G contains the NodeB and the RNC.