Category: Mobility Management
Combined Attach procedure in GPRS
‘Combined Attach’ means the MS is making an attach to the CS and PS domains in the same time. And […]
Gs interface – SGSN/MSC association in GPRS
The Gs interface is the interface between the SGSN, and the MSC/VLR. In other words, it is the interface between […]
Paging procedure in GPRS
The network inanities ‘Paging procedure’ towards to the MS, in order to move the MM context from STANDBY to READY […]
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 […]