As shown in Figure 4.1, the basic core network architecture for UMTS can be seen as a combination of GSM network subsystem (NSS) and GPRS backbone. The overall UMTS architecture can be seen as the ...

Figure 7.31: UMTS architecture overview. In the UMTS architecture diagram in Fig. 7.31, we have a single UE communicating to three NodeBs. For sake of discussion, we have assumed each NodeB operates ...