Multi-Tech Systems MMCModem GPRS (MTMMC-G) - Manual (Page 151)

Chapter 15 – GPRS Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I) 151
Quality of Service Profile Requested +CGQREQ
Description: This command allows the DTE to specify a Quality of Service Profile that is used when the modem
sends an Activate PDP Context Request message to the network.
The set command specifies a profile for the context identified by the local context identification
parameter, . Since this is the same parameter that is used in the
+CGDCONT command, the
+CGQREQ command is effectively an extension to the +CGDCONT command. The QoS profile
consists of a number of parameters, each of which may be set to a separate value.
A special form of the set command, +CGQREQ= , causes the requested profile for context
number to become undefined.
The read command returns the current settings for each defined context. The test command returns
values supported as a compound value. If the modem supports several PDP types, the parameter value
ranges for each PDP type are returned on a separate line.
Values: Numeric parameter that specifies a particular PDP context definition
Range 1- 3
Numeric parameter that specifies the precedence class
0 Subscribed precedence - Subscribed by the Network by default if value is omitted
1 High priority. Service commitments shall be maintained ahead of precedence classes 2 & 3
2 Normal priority - Service commitments shall be maintained ahead of precedence class 3
3 Low priority - Service commitments shall be maintained after precedence classes 1 and 2
Numeric parameter that specifies the delay class
0 Subscribed
1 Delay class 1
2 Delay class 2
3 Delay class 3
4 Delay class 4
Delay (maximum values)
Delay Class SDU size: 128 bytes SDU size: 1024 bytes
Mean Transfer
Delay (sec) 95 percentile Delay
(sec) Mean Transfer Delay
(sec) 95 percentile Delay (sec)
0 Subscribed Subscribed by the Nwk / default if value is omitted
1. (Predictive) < 0.5 < 2 < 7
2. (Predictive) < 5 < 25 < 15 < 75
3. (Predictive) < 50 < 250 < 75 < 375
4. (Best Effort) Unspecified
0 Subscribed
1 Up to 1 000 (8 kbit/s)
2 Up to 2 000 (16 kbit/s)
3 Up to 4 000 (32kbit/s)
4 Up to 8 000 (64 kbit/s)
5 Up to 16 000 (188 kbit/s)
6 Up to 32 000 (256 kbit/s)
7 Up to 64 000 (512 kbit/s)
8 Up to 128 000 (1 024 kbit/s)
9 Up to 256 000 (2 048 kbit/s)