HUAWEI MG323 GSM M2M Module

 

AT Command Interface Specification

Commands for Data Services

9.7.1 Querying the Supported QoS Parameter Range

Test

AT+CGQMIN=?

command

 

Function

Queries the supported QoS parameter range.

Response

z In case of successful execution:

 

[<CR><LF>+CGQMIN: <PDP_type>,(list of

 

supported<precedengce>s),(list of supported <delay>s),(list of

 

supported <reliability>s),(list of supported <peak>s),(list of supported

 

<mean>s)<CR><LF>

 

<CR><LF>OK<CR><LF>

 

z In case of an error during command execution:

 

<CR><LF>ERROR<CR><LF>

 

z In case of an error related to the MT during command execution:

 

<CR><LF>+CME ERROR: <err><CR><LF>

Parameter description

<cid>: numeric parameter, which indicates the index value of the PDP context; value

range: 1–3. For a TE-MT interface, this parameter is local and can be used for other commands related to the PDP context.

<precedence>: numeric parameter, which specifies the priority level.

z0 (default value): network customization parameter

z1: higher than priority levels 2 and 3; implements service commitments with high priority.

z2: higher than priority level 3; implements service commitments with medium priority.

z3: implements service commitments with low priority.

<delay>: numeric parameter, which indicates the delay level; value range: 0–4; this parameter defines the delay of SDU transmission on the GPRS network.

0 (default value): network customization parameter

When the size of SDU is 128 octets:

Delay Level

Average

95 Percentile

 

Transmission Delay

 

 

 

 

1(Predictive)

<0.5

<1.5

 

 

 

2(Predictive)

<5

<25

 

 

 

3(Predictive)

<50

<250

 

 

 

4(Best Effort)

Unspecified

 

 

 

 

When the size of SDU is 1024 octets:

Issue 02 (2010-11-23)

Huawei Proprietary and Confidential

123

Copyright © Huawei Technologies Co., Ltd.

 

 

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Image 140
Huawei MG323 Querying the Supported QoS Parameter Range, Delay Level Average Percentile Transmission Delay, At+Cgqmin=?