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T300/T302
White Paper, August 2002
61
Interfaces to external
devices supported by the
handset and available for
a GPRS link
IrDA, AT commands. IrDA,
Datarate=SIR & MIR RS232,
autobaud, max 460kbit/s
Downlink data rate Up to 64,200 bps for packet data communication, using 3 time slots in
coding scheme CS-4
Uplink data rate Up to 21,400 bps for packet data communication, using 1 time slot in
coding scheme CS-4
Mode of operation Class B and Class C modes of operation supported. It is possible for the
user to choose if the Circuit Switched services should be favoured.
R Reference point Physical layer: PPP is supported as L2 layer in the R reference point
Authentication algorithms PAP, CHAP supported
IP connectivity PDP type IP is supported
IP termination in mobile or TE (laptop, PDA) supported
Application WAP over GPRS supported (UDP/IP and GPRS-SMS)
SMS over GPRS (SMS-MT, SMS-MO) supported
QoS QoS negotiation supported. Default requested QoS sent by the handset at
PDP context activation is reliability Class 3. Peak/Mean/Delay/Precedence
Class: subscribed (1,2,3).
• Precedence class supported (1,2,3)
• Reliability class 1-5 supported
• Delay classes supported (1,2,3,4)
• Mean and peak throughput rate limited by multislot class 4 and CS-
4
PDP context 10 PDP context descriptions stored in mobile
PDP context description is edited via application in mobile, AT-command
or via OTA
Simultaneous PDP contexts not supported
Network requested PDP context not supported
SIM GPRS aware, as well as non GPRS aware SIMs are supported
AT commands supported • AT+CGDCONT - DEFINE
PDP CONTEXT
• AT+CGQREQ - Quality of
Service Profile
(REQUESTED)
• AT+CGQMIN - Quality of
Service Profile (Minimum
Acceptable)
• AT+CGATT - PACKET
DOMAIN SERVICE ATTACH
OR DETACH
• AT+CGACT - PDP CONTEXT
ACTIVATE OR DEACTIVATE
•AT+CGDATA - ENT
Dimension Support in the T300/T302