SARA-R42 - Application note
UBX-20050829 - R02
MNO profiles
Page 17 of 58
C1-Public
6
MNO profiles
MNO profiles provide a powerful and flexible method to configure the SARA-R4 series module to
seamlessly work with the SIM of the selected network operator.
Using the MNO profiles the module is dynamically configured to use the proper bands, RATs, and the
operator-dependent protocol stack settings needed to operate on the home network in full
compliance with the mobile operator requirements.
With the MNO profiles, a customer application is not required to configure the module using complex
and/or network-
dependent parameters, but benefits from a “out of the box” solution that provides
seamless connectivity while abstracting the complexity of managing individual network
configurations.
Use the
+UMNOPROF
AT command to select a profile for the network operator. For more details on the
+UMNOPROF AT command and the MNO profile settings, see the SARA-R4 series AT commands
manual
6.1
Using MNO profiles
To configure the module to use an MNO profile, first make sure the module is de-registered from the
network, then select the profile using the ID number and finally software-reset the module. When the
module reboots, it will configure itself to use the parameters specified by the MNO.
☞
The host application should specify an MNO profile. The default and factory-programmed MNO
profile is 90 (global profile).
☞
Reboot the module by means of
AT+CFUN=15
command (or the equivalent
AT+CFUN=16
) to make
the MNO profile active.
6.2
Modifiable parameters
MNO profiles configure the module with a set of parameters. Some of these parameters can be
overridden by using AT commands:
•
+UBANDMASK
Band mask
•
+CGDCONT
APN and PDP type
If the host changes any of these parameters, they will be retained after a module reset; if the MNO
profile is re-applied, after reboot the MNO profile specific settings will be restored to the
factory-programmed setting.
☞
Usually the APN will be accepted also when in roaming, but bands might need to be enabled to
search for alternative PLMNs.
After setting the MNO profile the application may want to also modify the Radio Access Technology
list and Band Mask.
Possible reason for sURAT may include:
•
Radio Access Technology is not deployed by network carrier yet in the area device is intended to
run on. Therefore only enabling the desired RAT will reduce scan time when device is searching for
the network
Possible reason for sUBANDMASK may include:
•
Band(s) is not deployed by carrier yet in the area device is intended to run.
•
Device is an area where it is interested in running on specific bands only
•
Reducing the number of bands will reduce scan time when the device is searching for the network
in out-of-service or limited-service conditions.
