White paper
W705/W705u/W705a
29
February 2009
GPRS technical data
Property
Support
Compatible GPRS/EDGE and SMG
specifications
Release 99 according to ETSI specification
Data rates GPRS (per time slot)
Coding scheme
CS-1: 9 Kbps
CS-2: 13,4 Kbps
CS-3: 15,6 Kbps
CS-4: 21,4 Kbps (network-dependent).
Data rates EDGE (per time slot)
Modulation & coding scheme (MCS)
MCS-1 (GMSK): 8.0 Kbps
MCS-2 (GMSK): 11.4 Kbps
MCS-3 (GMSK): 14.8 Kbps
MCS-4 (GMSK): 17.6 Kbps
MCS-5 (8-PSK): 22.4 Kbps
MCS-6 (8-PSK): 29.4 Kbps
MCS-7 (8-PSK): 44.8 Kbps
MCS-8 (8-PSK): 54.4 Kbps
MCS-9 (8-PSK): 59.2 Kbps
Medium Access Modes
Dynamic allocation
Support of Packet Control
Channels (PBCCH/PCCCH)
Yes
Network operation mode
NOM I, II, III
Support of GPRS/CS combined
procedures
Yes
Network control mode
NC0 and NC2
Support of access in 2 phases
Yes
Support of PRACH on 11 bits
Yes
Support of GPRS re-selection C31/
C32
Yes
Support of static and dynamic
addressing
Yes
Support of power control uplink
and downlink
Uplink = yes, downlink is a network feature
Support of ciphering algorithms
GEA1, GEA2
Support of compression algorithms Yes, V42bis and IP header compression
Mode of operation
Class B and Class C modes of operation supported
R Reference point
• Physical layer: Support of RS232
• PPP is supported as L2 layer in the R reference point
• Authentication algorithms PAP, CHAP supported