Functions – MM & SM
Mobility Management (MM)
-MM is to control the MS Authentication /
accessible services the GPRS/UMTS network
- MM is used trace the current
location of the MS such as the RA and Cell ID.
-The MM function is realized
mainly by attachment / detachment and route updating.
Session Management (SM)
-SM carries out packet data
protocol (PDP) context management. The PDP context is a group of information
describing all the information related to the data sessions accessed by the MS
-The session management includes
PDP context activation, modification and deactivation.
-The NEs such as MS, SGSN and GGSN
sends and manages the PDP data based on the PDP context.
