GPRS architecture pdf

After signal comes to SGSN, it delivers the data packet to the GGSN . GGSN routes the data packet to the data network (PDN- Predefined Data Network). Task of GGSN : Mediator between GPRS between backbone and external data networks.1 Haz 2021

SGSN helps in the services within a network , whereas GGSN helps in the gateway outside the network. Also, the Packet Control Unit or PCU is present in the network that helps to determine where the data should be routed. It is either given to packet-switched or circuit-switched networks in the system. 3.

The Gateway GPRS Support Node (GGSN) is the central element within the UMTS packet switched network . It handles inter-working between the UMTS packet switched network and external packet switched networks, and can be considered as a very sophisticated router.

The gateway GPRS support node (GGSN) converts the incoming data traffic coming from the mobile users through the Service gateway GPRS support node (SGSN) and forwards it to the relevant network, and vice versa. The GGSN and the SGSN together form the GPRS support nodes (GSN) .

SGSN and GGSN are used for connecting our cell phones to mobile internet through GPRS, EDGE, HSPA and HSPA+ technologies in 2G GSM and 3G UMTS networks. SGSN is the main node that performs packet-switching functions, whereas GGSN is more of a router that connects SGSN to the external data networks .17 Kas 2019