|
| GSM w/o GPRS
| end-to-end transmission
| GSM with GPRS
| link-by-link transmission
| |
|
from < 100 bit/s to over 100 kbit/s.
|
|---|
Serving GPRS Support Nodes SGSN
Gateway GPRS Support Nodes GGSN
GPRS backbone
| Point-to-multipoint Service Centre PTM SC
| | | |
GPRS-specific mobility management:
the location of the MS is handled separately by the SGSN and by the MSC/VLR even if some cooperation exists
network management capable of handling the GPRS-specific elements
a new air interface for packet traffic
new security features for the GPRS backbone and a new ciphering algorithm
| new MAP and GPRS-specific signalling
| | | | |
Nokia White Paper
|