White paper
W205
20
April 2009
USSD technical data
GPRS technical data
Feature
Support
USSD support
GSM Phase 1/2 (Cross-phase compatibility)
GPRS behaviour according to class 8
Mode support mode
UI-mode supported
SAT initiated USSD supported
UI-mode details
It is possible to scroll up and down in USSD messages
Dimension
Support
Compatible GPRS and SMG
specifications
Release 97 according to ETSI specification
Data rates
Multislot class 8 supported (4+1).
CS-1, CS-2, CS-3, CS-4.
9.050 bps, 13.400 bps, 15.600 bps, 21.400 bps supported
(network-dependent)
Indicator of attachment to the
GPRS service
Yes, a filled G symbol appears in the top left corner if attached
Indicator of PDP context activation
No
Medium Access Modes
Dynamic allocation
Support for Packet Control
Channels (PBCCH/PCCCH)
Yes
Network operation mode
NOM I, II, III
Support for GPRS combined
procedures
Yes
Network control mode
NC0 and 2
Support for access in 2 phases
Yes
Support for PRACH on 11 bits
Yes
Support for GPRS re-selection
C31/C32
Yes
Support for static and dynamic
addressing
Yes
Support for power control Uplink
and Downlink
Uplink = yes, Downlink is a network feature
Support for ciphering algorithms
GEA1, GEA2
Support for compression
algorithms
No