MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 151

• Manufacturer Part Number: MTCMR-G-F4
• Description: MODEM GPRS QUAD BAND GSM GLOBAL
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-G-F4

• Frequency: 850MHz, 900MHz, 1.8GHz, 1.9GHz
• Applications: General Purpose
• Interface: RS-232, USB
• Function: Transceiver, Modem
• Data Rate - Maximum: 115.2kbps
• Modulation Or Protocol: GSM, GPRS
• Voltage - Supply: 9 V ~ 32 V
• Package / Case: Module with Case
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Power - Output: -
• Sensitivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 881-1151; MTCMR-G-F4

Quality of Service Profile Requested +CGQREQ
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
0
1. (Predictive)
2. (Predictive)
3. (Predictive)
4. (Best Effort)
Delay Class
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, <cid>. 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= <cid>, causes the requested profile for context
number <cid> 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.
<cid>
<precedence> Numeric parameter that specifies the precedence class
<delay>
<reliabiliy>
0
1
2
3
0
1
2
3
4
0
1
2
3
4
5
6
7
8
9
Mean Transfer
Delay (sec)
Subscribed
Numeric parameter that specifies a particular PDP context definition
Range 1- 3
Subscribed precedence - Subscribed by the Network by default if value is omitted
High priority. Service commitments shall be maintained ahead of precedence classes 2 & 3
Normal priority - Service commitments shall be maintained ahead of precedence class 3
Low priority - Service commitments shall be maintained after precedence classes 1 and 2
Numeric parameter that specifies the delay class
Subscribed
Delay class 1
Delay class 2
Delay class 3
Delay class 4
Subscribed
Up to 1 000 (8 kbit/s)
Up to 2 000 (16 kbit/s)
Up to 4 000 (32kbit/s)
Up to 8 000 (64 kbit/s)
Up to 16 000 (188 kbit/s)
Up to 32 000 (256 kbit/s)
Up to 64 000 (512 kbit/s)
Up to 128 000 (1 024 kbit/s)
Up to 256 000 (2 048 kbit/s)
< 0.5
< 5
< 50
Delay (maximum values)
SDU size: 128 bytes
95 percentile Delay
(sec)
Subscribed by the Nwk / default if value is omitted
< 25
< 250
Mean Transfer Delay
(sec)
Unspecified
SDU size: 1024 bytes
< 2
< 15
< 75
Chapter 15 – GPRS Commands
95 percentile Delay (sec)
< 7
< 75
< 375
151