• State Not Answered
  • Replies 3 replies
  • Subscribers 74 subscribers
  • Views 1158 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 298178
Options

XEPCO Configuration with NB-IoT and LTE-M enabled (MFW1.3.x)

Umer Mahmood

We are migrating from Modem firmware version 1.2.x to 1.3.x. Since it is now possible to enable LTE and NBIOT both using the following XSYSTEMMODE configuraton:

AT%XSYSTEMMODE=1,1,0,1

How does this affect other configuration?
Especially PCO configuration, should PCO be used or ePCO?

Parents
  • 0

    Hello, 

    This depends on the network. If you are connecting over NB-IoT and your operator does not support extended Protocol Configuration Options (ePCO), select the option which enabled legacy Protocol Configuration Options (PCO) mode, i.e. AT%XEPCO=0

    You can also set this in the application configuration (prj.conf) with CONFIG_PDN_LEGACY_PCO.

    Kind regards,
    Øyvind

  • 0 in reply to Øyvind

    Hello! 
    Thank you for your quick reply. I understand that some networks might not support ePCO, but can I assume all networks support atleast lagacy pco? 
    What I am really trying to understand from the point of view of application development, is, do I need to implement a mechanisim to toggle between lagacy and ePCO every now and then using the relevant at command, whenever my device fails to connect to the network? 
    Or should I simply use lagacy PCO and not worry about anything? Because from what I understand, for example just in Europe, I cannot be sure if all the networks my device will try to connect to, home network or when roaming, support ePCO or not. The goal is that the device should be able to make a connection successfully, not just in Europe but in USA/Canada and Asia as well. 

Reply
  • 0 in reply to Øyvind

    Hello! 
    Thank you for your quick reply. I understand that some networks might not support ePCO, but can I assume all networks support atleast lagacy pco? 
    What I am really trying to understand from the point of view of application development, is, do I need to implement a mechanisim to toggle between lagacy and ePCO every now and then using the relevant at command, whenever my device fails to connect to the network? 
    Or should I simply use lagacy PCO and not worry about anything? Because from what I understand, for example just in Europe, I cannot be sure if all the networks my device will try to connect to, home network or when roaming, support ePCO or not. The goal is that the device should be able to make a connection successfully, not just in Europe but in USA/Canada and Asia as well. 

Children
Related
Terms of service