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HUAWEI MG323 GSM M2M Module
AT Command Interface Specification Commands for Data Services
Issue 02 (2010-11-23)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
127
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.
z
0 (default value): network customization parameter
z
1: higher than priority levels 2 and 3; implements service commitments with high
priority.
z
2: higher than priority level 3; implements service commitments with medium
priority.
z
3: 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 Transmission Delay 95 Percentile
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:
Delay Level Average Transmission Delay 95 Percentile
1(Predictive) <0.5 <1.5
2(Predictive) <5 <25
3(Predictive) <50 <250
4(Best Effort) Unspecified
<reliability>: integer, which specifies the reliability level of processing uncommon data
loss.
z
0 (default value): network customization parameter
z
1: cannot process non-real-time services and error-sensitive applications for
data loss
z
2: can process non-real-time services and error-sensitive applications for data
loss
z
3: can process non-real-time services and error-sensitive applications for data
loss, GMM/SM, and SMS