Category: 2G/3G
Service Request in 3G
The MS initiates the ‘Service Request’ procedure in order to establish the ‘PS signaling connection’ between the MS and the […]
GPRS Detach procedure
There are three nodes that can initiate ‘GPRS Detach’ procedure. Those nodes are the MS, the SGSN, and the HLR. […]
Timers in GPRS Mobility Management
There are a few Mobility Management timers exist on the MS and the SGSN. Using those timers the nodes will […]
How MM state transition in 2G occurs
The MM context exist on both the MS and the SGSN. One of the information elements exist inside the MM context, […]
PMM state transition in 3G
The PMM state are the Mobility management state for the MM context exist on the MS and on the SGSN […]
2G/3G Mobility Management states
The GPRS Mobility Management determines if the user equipment is registered to the network or not. In another words, it […]
Routing Area Update ‘RAU’ in GPRS
Types of Routing Area Update ‘RAU’ Intra-SGSN RAU The Intra SGSN RAU occurs when the MS moves from one RA […]
Your reference for GPRS Attach Procedure
GPRS Attach procedure is the procedure in which the MS registers to the network. In other words, the network knows […]
Gn Interface and Gp Interface
Gn/Gp interface, is the interface between the SGSNs and the GGSNs. ‘Gn interface’ is the interface between the SGSNs and […]
Roaming Architecture in 2G/3G
To understand Roaming architecture in GPRS, there are a few terms we have to understand, Outbound roaming The outbound roaming […]