New network nodes have been introduced for the transport of packet data. These nodes are the gateway GPRS support nodes (GGSN) and serving GPRS support nodes (SGSN). The subnetwork formed by the SGSNs ...

This chapter covers signaling and data transfer over the Gb interface. This interface is essential, as it is the link between the GPRS core network and the BSS. It is used for the transport of GMM, ...