MS start and send “Active PDP context request” to SGSN
-Provide QoS parameter
-Provide a APN-NI
-Provide a static IP or null
Receive ACCEPT
from SGSN
-If the QoS not accept by MS,
then starts delete PDP context procedure.
Handle in SGSN
Check subscriber data
APN selection
-According to TS 23.060
-default APN,APN provide from MS and the APN subscribed
in HLR
-APN-NI.APN-OI
Interrogate DNS
-Hostfile/Cache/DNS
server
QoS negotiation
-QoS
provided from MS, default QoS ,QoS subscribed in HLR
Send message “create PDP context request” to GGSN
RAB assignment
Send message “active PDP context accept” to MS
-Dynamic IP address
-QoS
Handle in GGSN
Check
the APN provided by SGSN
QoS negotiation
Allocate
a dynamic IP to the MS
Allocate
a charging ID for the PDP context
Return
a CREATE PDP CONTEXT ACCEPT message to SGSN
-Dynamic IP
-QoS
-Charging ID
-Other information
Update
PDP context