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case about nRF9160 CAT-NB1 or CAT-M1

peter.min

Hi,

1. Can nRF9160 equipment automatically identify the following two networks?

2.CAT-NB1/NB2

3.CAT-M1

4. Automatically identifies the NB network when inserting a NB SIM card

5. When inserting a CAT-M SIM card, it automatically identifies the CAT-M network

Thank you for all your assistance.
Kind regards,
Peter.Min

  • 0

    Hi Peter,

    I suggest you play with nRF9160: AT Client — nRF Connect SDK 1.9.1 documentation (nordicsemi.com) sample and pay attention to System mode %XSYSTEMMODE.

    I am sure you will get the answers by yourself. Just let me know if you need any more help.

    Best regard,

    Charlie

  • 0 in reply to Charlie

    Hi Charlie,

    1. My test example is merged_serial_lte_modem_V1.9.hex

    2. My test instructions are:

    AT%XFACTORYRESET=0

    AT+CFUN=1

    AT%XSYSTEMMODE?

    2022-04-01T09:44:55.090Z INFO Application data folder: C:\Users\Peter\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2022-04-01T09:44:55.152Z DEBUG App pc-nrfconnect-linkmonitor v2.0.0 official
2022-04-01T09:44:55.152Z DEBUG App path: C:\Users\Peter\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2022-04-01T09:44:55.152Z DEBUG nRFConnect 3.10.0, required by the app is (^3.8.0)
2022-04-01T09:44:55.152Z DEBUG nRFConnect path: C:\Users\Peter\AppData\Local\Programs\nrfconnect\resources\app.asar
2022-04-01T09:44:55.152Z DEBUG HomeDir: C:\Users\Peter
2022-04-01T09:44:55.152Z DEBUG TmpDir: C:\Users\Peter\AppData\Local\Temp
2022-04-01T09:44:56.877Z INFO Modem port is opened
2022-04-01T09:44:56.885Z DEBUG modem >> AT+CFUN?
2022-04-01T09:44:56.901Z DEBUG modem << +CFUN: 0
2022-04-01T09:44:56.903Z DEBUG modem << OK
2022-04-01T09:45:08.980Z DEBUG modem >> AT%XFACTORYRESET=0
2022-04-01T09:45:08.997Z DEBUG modem << OK
2022-04-01T09:45:17.491Z DEBUG modem >> AT+CFUN=1
2022-04-01T09:45:17.533Z DEBUG modem << OK
2022-04-01T09:45:20.354Z INFO Modem port is closed
2022-04-01T09:45:20.364Z INFO Modem port is opened
2022-04-01T09:45:20.369Z DEBUG modem >> AT+CFUN?
2022-04-01T09:45:20.376Z DEBUG modem << +CFUN: 1
2022-04-01T09:45:20.378Z DEBUG modem << OK
2022-04-01T09:45:20.385Z DEBUG modem >> AT+CGSN=1
2022-04-01T09:45:20.394Z DEBUG modem << +CGSN: "352656100375701"
2022-04-01T09:45:20.397Z DEBUG modem << OK
2022-04-01T09:45:20.401Z DEBUG modem >> AT+CGMI
2022-04-01T09:45:20.412Z DEBUG modem << Nordic Semiconductor ASA
2022-04-01T09:45:20.413Z DEBUG modem << OK
2022-04-01T09:45:20.415Z DEBUG modem >> AT+CGMM
2022-04-01T09:45:20.420Z DEBUG modem << nRF9160-SICA
2022-04-01T09:45:20.421Z DEBUG modem << OK
2022-04-01T09:45:20.428Z DEBUG modem >> AT+CGMR
2022-04-01T09:45:20.434Z DEBUG modem << mfw_nrf9160_1.3.1
2022-04-01T09:45:20.435Z DEBUG modem << OK
2022-04-01T09:45:20.436Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.3.1] SerNr: 352656100375701
2022-04-01T09:45:20.437Z DEBUG modem >> AT+CEMODE?
2022-04-01T09:45:20.444Z DEBUG modem << +CEMODE: 2
2022-04-01T09:45:20.445Z DEBUG modem << OK
2022-04-01T09:45:20.450Z DEBUG modem >> AT%XCBAND=?
2022-04-01T09:45:20.460Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,18,19,20,25,26,28,66)
2022-04-01T09:45:20.461Z DEBUG modem << OK
2022-04-01T09:45:20.465Z DEBUG modem >> AT+CMEE?
2022-04-01T09:45:20.470Z DEBUG modem << +CMEE: 0
2022-04-01T09:45:20.471Z DEBUG modem << OK
2022-04-01T09:45:20.478Z DEBUG modem >> AT+CMEE=1
2022-04-01T09:45:20.482Z DEBUG modem << OK
2022-04-01T09:45:20.486Z DEBUG modem >> AT+CNEC?
2022-04-01T09:45:20.493Z DEBUG modem << +CNEC: 0
2022-04-01T09:45:20.494Z DEBUG modem << OK
2022-04-01T09:45:20.497Z DEBUG modem >> AT+CNEC=24
2022-04-01T09:45:20.502Z DEBUG modem << OK
2022-04-01T09:45:20.504Z DEBUG modem >> AT+CGEREP?
2022-04-01T09:45:20.510Z DEBUG modem << +CGEREP: 0,0
2022-04-01T09:45:20.511Z DEBUG modem << OK
2022-04-01T09:45:20.515Z DEBUG modem >> AT+CGDCONT?
2022-04-01T09:45:20.519Z DEBUG modem << OK
2022-04-01T09:45:20.526Z DEBUG modem >> AT+CGACT?
2022-04-01T09:45:20.531Z DEBUG modem << OK
2022-04-01T09:45:20.534Z DEBUG modem >> AT+CGEREP=1
2022-04-01T09:45:20.542Z DEBUG modem << OK
2022-04-01T09:45:20.546Z DEBUG modem >> AT+CIND=1,1,1
2022-04-01T09:45:20.550Z DEBUG modem << OK
2022-04-01T09:45:20.554Z DEBUG modem >> AT+CEREG=5
2022-04-01T09:45:20.563Z DEBUG modem << OK
2022-04-01T09:45:20.566Z DEBUG modem >> AT+CEREG?
2022-04-01T09:45:20.579Z DEBUG modem << +CEREG: 5,4
2022-04-01T09:45:20.580Z DEBUG modem << OK
2022-04-01T09:45:20.584Z DEBUG modem >> AT%CESQ=1
2022-04-01T09:45:20.593Z DEBUG modem << OK
2022-04-01T09:45:20.596Z DEBUG modem >> AT+CESQ
2022-04-01T09:45:20.603Z DEBUG modem << +CESQ: 99,99,255,255,255,255
2022-04-01T09:45:20.604Z DEBUG modem << 
2022-04-01T09:45:20.607Z DEBUG modem << OK
2022-04-01T09:45:20.612Z DEBUG modem >> AT%XSIM=1
2022-04-01T09:45:20.617Z DEBUG modem << OK
2022-04-01T09:45:20.619Z DEBUG modem >> AT%XSIM?
2022-04-01T09:45:20.627Z DEBUG modem << %XSIM: 1
2022-04-01T09:45:20.628Z DEBUG modem << OK
2022-04-01T09:45:20.632Z DEBUG modem >> AT+CPIN?
2022-04-01T09:45:20.637Z DEBUG modem << +CPIN: READY
2022-04-01T09:45:20.643Z DEBUG modem << 
2022-04-01T09:45:20.644Z DEBUG modem << OK
2022-04-01T09:45:20.648Z DEBUG modem >> AT+CPINR="SIM PIN"
2022-04-01T09:45:20.660Z DEBUG modem << +CPINR: "SIM PIN",3
2022-04-01T09:45:20.662Z DEBUG modem << 
2022-04-01T09:45:20.663Z DEBUG modem << OK
2022-04-01T09:45:20.666Z DEBUG modem >> AT+CIMI
2022-04-01T09:45:20.671Z DEBUG modem << 460046428407776
2022-04-01T09:45:20.677Z DEBUG modem << 
2022-04-01T09:45:20.678Z DEBUG modem << OK
2022-04-01T09:45:20.679Z INFO IMSIdentity: 460046428407776
2022-04-01T09:46:31.496Z DEBUG modem << +CEREG: 4
2022-04-01T09:47:59.824Z DEBUG modem >> AT%XSYSTEMMODE?
2022-04-01T09:47:59.831Z DEBUG modem << %XSYSTEMMODE: 1,0,0,0
2022-04-01T09:47:59.832Z DEBUG modem << OK

    3. I found that the default factory setting is cat-m,

    I inserted NB card and cannot connect to the network

    4. However, according to the customer's feedback, it is set to NB mode and automatically connected to CAT-M network after inserting the CAT-M card

    5. Therefore, I want to confirm the nRF9160 module

    Modem 1.3.1

    The SDK 1.9.1

    Whether the network mode is cat-M automatically identified

    Thank you for all your assistance.
    Kind regards,
    Peter.Min

  • 0 in reply to peter.min

    Hi Peter,

    peter.min said:
    4. However, according to the customer's feedback, it is set to NB mode and automatically connected to CAT-M network after inserting the CAT-M card

    Not sure how this cloud happen. I did a test on my side with the same setup+sim card that only supports LTE-M, you can find the following log:

    Fullscreen 2022-04-04T12_30_28.663Z-log.txt Download 
    2022-04-04T12:30:29.768Z INFO Application data folder: C:\Users\chs1\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2022-04-04T12:30:29.833Z DEBUG App pc-nrfconnect-linkmonitor v2.0.0 official
2022-04-04T12:30:29.833Z DEBUG App path: C:\Users\chs1\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2022-04-04T12:30:29.833Z DEBUG nRFConnect 3.10.0, required by the app is (^3.8.0)
2022-04-04T12:30:29.833Z DEBUG nRFConnect path: C:\Users\chs1\AppData\Local\Programs\nrfconnect\resources\app.asar
2022-04-04T12:30:29.833Z DEBUG HomeDir: C:\Users\chs1
2022-04-04T12:30:29.834Z DEBUG TmpDir: C:\Users\chs1\AppData\Local\Temp
2022-04-04T12:30:32.837Z INFO Modem port is opened
2022-04-04T12:30:32.844Z DEBUG modem >> AT+CFUN?
2022-04-04T12:30:32.855Z DEBUG modem << +CFUN: 0
2022-04-04T12:30:32.857Z DEBUG modem << OK
2022-04-04T12:30:35.351Z DEBUG modem >> AT+CFUN?
2022-04-04T12:30:35.363Z DEBUG modem << +CFUN: 0
2022-04-04T12:30:35.372Z DEBUG modem << OK
2022-04-04T12:31:10.816Z DEBUG modem >> AT%XSYSTEMMODE=0,1,0,0
2022-04-04T12:31:10.830Z DEBUG modem << OK
2022-04-04T12:31:13.098Z DEBUG modem >> AT+CFUN?
2022-04-04T12:31:13.111Z DEBUG modem << +CFUN: 0
2022-04-04T12:31:13.118Z DEBUG modem << OK
2022-04-04T12:31:19.234Z DEBUG modem >> AT%XSYSTEMMODE?
2022-04-04T12:31:19.249Z DEBUG modem << %XSYSTEMMODE: 0,1,0,0
2022-04-04T12:31:19.252Z DEBUG modem << OK
2022-04-04T12:31:22.323Z DEBUG modem >> AT+CFUN=0
2022-04-04T12:31:22.340Z DEBUG modem << OK
2022-04-04T12:31:24.809Z DEBUG modem >> AT+CFUN?
2022-04-04T12:31:24.822Z DEBUG modem << +CFUN: 0
2022-04-04T12:31:24.827Z DEBUG modem << OK
2022-04-04T12:31:29.297Z DEBUG modem >> AT+CFUN?
2022-04-04T12:31:29.311Z DEBUG modem << +CFUN: 0
2022-04-04T12:31:29.318Z DEBUG modem << OK
2022-04-04T12:31:31.260Z DEBUG modem >> AT+CFUN=1
2022-04-04T12:31:31.296Z DEBUG modem << OK
2022-04-04T12:31:32.646Z DEBUG modem >> AT+CFUN?
2022-04-04T12:31:32.652Z DEBUG modem << +CFUN: 1
2022-04-04T12:31:32.658Z DEBUG modem << OK
2022-04-04T12:31:32.663Z DEBUG modem >> AT+CGSN=1
2022-04-04T12:31:32.669Z DEBUG modem << +CGSN: "351358815320178"
2022-04-04T12:31:32.671Z DEBUG modem << OK
2022-04-04T12:31:32.672Z DEBUG modem >> AT+CGMI
2022-04-04T12:31:32.680Z DEBUG modem << Nordic Semiconductor ASA
2022-04-04T12:31:32.681Z DEBUG modem << OK
2022-04-04T12:31:32.684Z DEBUG modem >> AT+CGMM
2022-04-04T12:31:32.689Z DEBUG modem << nRF9160-SICA
2022-04-04T12:31:32.691Z DEBUG modem << OK
2022-04-04T12:31:32.693Z DEBUG modem >> AT+CGMR
2022-04-04T12:31:32.698Z DEBUG modem << mfw_nrf9160_1.3.1
2022-04-04T12:31:32.699Z DEBUG modem << 
2022-04-04T12:31:32.700Z DEBUG modem << OK
2022-04-04T12:31:32.701Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.3.1] SerNr: 351358815320178
2022-04-04T12:31:32.702Z DEBUG modem >> AT+CEMODE?
2022-04-04T12:31:32.707Z DEBUG modem << +CEMODE: 0
2022-04-04T12:31:32.708Z DEBUG modem << OK
2022-04-04T12:31:32.714Z DEBUG modem >> AT%XCBAND=?
2022-04-04T12:31:32.723Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,17,19,20,25,26,28,66)
2022-04-04T12:31:32.724Z DEBUG modem << OK
2022-04-04T12:31:32.732Z DEBUG modem >> AT+CMEE?
2022-04-04T12:31:32.737Z DEBUG modem << +CMEE: 0
2022-04-04T12:31:32.738Z DEBUG modem << OK
2022-04-04T12:31:32.740Z DEBUG modem >> AT+CMEE=1
2022-04-04T12:31:32.745Z DEBUG modem << OK
2022-04-04T12:31:32.748Z DEBUG modem >> AT+CNEC?
2022-04-04T12:31:32.753Z DEBUG modem << +CNEC: 0
2022-04-04T12:31:32.754Z DEBUG modem << OK
2022-04-04T12:31:32.756Z DEBUG modem >> AT+CNEC=24
2022-04-04T12:31:32.763Z DEBUG modem << OK
2022-04-04T12:31:32.766Z DEBUG modem >> AT+CGEREP?
2022-04-04T12:31:32.772Z DEBUG modem << +CGEREP: 0,0
2022-04-04T12:31:32.773Z DEBUG modem << OK
2022-04-04T12:31:32.775Z DEBUG modem >> AT+CGDCONT?
2022-04-04T12:31:32.787Z DEBUG modem << OK
2022-04-04T12:31:32.791Z DEBUG modem >> AT+CGACT?
2022-04-04T12:31:32.797Z DEBUG modem << OK
2022-04-04T12:31:32.799Z DEBUG modem >> AT+CGEREP=1
2022-04-04T12:31:32.804Z DEBUG modem << OK
2022-04-04T12:31:32.808Z DEBUG modem >> AT+CIND=1,1,1
2022-04-04T12:31:32.813Z DEBUG modem << OK
2022-04-04T12:31:32.817Z DEBUG modem >> AT+CEREG=5
2022-04-04T12:31:32.821Z DEBUG modem << OK
2022-04-04T12:31:32.826Z DEBUG modem >> AT+CEREG?
2022-04-04T12:31:32.835Z DEBUG modem << +CEREG: 5,4
2022-04-04T12:31:32.837Z DEBUG modem << OK
2022-04-04T12:31:32.847Z DEBUG modem >> AT%CESQ=1
2022-04-04T12:31:32.851Z DEBUG modem << OK
2022-04-04T12:31:32.855Z DEBUG modem >> AT+CESQ
2022-04-04T12:31:32.867Z DEBUG modem << +CESQ: 99,99,255,255,255,255
2022-04-04T12:31:32.869Z DEBUG modem << OK
2022-04-04T12:31:32.876Z DEBUG modem >> AT%XSIM=1
2022-04-04T12:31:32.881Z DEBUG modem << OK
2022-04-04T12:31:32.884Z DEBUG modem >> AT%XSIM?
2022-04-04T12:31:32.889Z DEBUG modem << %XSIM: 1
2022-04-04T12:31:32.890Z DEBUG modem << OK
2022-04-04T12:31:32.897Z DEBUG modem >> AT+CPIN?
2022-04-04T12:31:32.902Z DEBUG modem << +CPIN: READY
2022-04-04T12:31:32.903Z DEBUG modem << OK
2022-04-04T12:31:32.907Z DEBUG modem >> AT+CPINR="SIM PIN"
2022-04-04T12:31:32.918Z DEBUG modem << +CPINR: "SIM PIN",3
2022-04-04T12:31:32.919Z DEBUG modem << 
2022-04-04T12:31:32.920Z DEBUG modem << OK
2022-04-04T12:31:32.923Z DEBUG modem >> AT+CIMI
2022-04-04T12:31:32.934Z DEBUG modem << 204080813518390
2022-04-04T12:31:32.937Z DEBUG modem << OK
2022-04-04T12:31:32.939Z INFO IMSIdentity: 204080813518390
2022-04-04T12:31:37.733Z DEBUG modem << %CESQ: 30,1,25,3
2022-04-04T12:31:37.738Z DEBUG modem << +CEREG: 2,"0ED9","02010E27",9
2022-04-04T12:31:40.828Z DEBUG modem << +CNEC_EMM: 14
2022-04-04T12:31:40.831Z DEBUG modem << +CEREG: 2,"0ED9","02010E27",9,0,14
2022-04-04T12:32:01.769Z DEBUG modem << %CESQ: 25,1,24,3
2022-04-04T12:32:04.329Z DEBUG modem << %CESQ: 31,1,26,3
2022-04-04T12:32:35.968Z DEBUG modem >> AT%XSYSTEMMODE?
2022-04-04T12:32:35.976Z DEBUG modem << %XSYSTEMMODE: 0,1,0,0
2022-04-04T12:32:35.978Z DEBUG modem << OK
2022-04-04T12:33:03.211Z DEBUG modem << %CESQ: 26,1,25,3
2022-04-04T12:33:06.631Z DEBUG modem << %CESQ: 255,0,255,0
2022-04-04T12:33:11.617Z DEBUG modem << %CESQ: 73,3,21,3
2022-04-04T12:33:11.621Z DEBUG modem << +CEREG: 2,"9E99","031B4364",9
2022-04-04T12:33:15.495Z DEBUG modem << %CESQ: 73,3,26,3
2022-04-04T12:33:19.107Z DEBUG modem << %CESQ: 74,3,19,2
2022-04-04T12:33:23.175Z DEBUG modem << %CESQ: 72,3,24,3
2022-04-04T12:33:53.863Z DEBUG modem << +CNEC_ESM: 32,0
2022-04-04T12:33:53.866Z DEBUG modem << +CNEC_EMM: 19
2022-04-04T12:33:53.869Z DEBUG modem << +CEREG: 2,"9E99","031B4364",9,0,19
2022-04-04T12:34:32.272Z DEBUG modem << %CESQ: 77,3,25,3

    As you can see the device can find an NB cell station but can not register to it. I suggest you check with customers and request a similar test log from them to see if we can repeat it.

    Best regards,
    Charlie

  • 0 in reply to Charlie

    Hi Charlie,

    1. Restore factory Settings

    2. The network injection test starts. By default, the NB network cannot be connected

    Does the above test mean that the default is cat-M network

    Thank you for all your assistance.
    Kind regards,
    Peter.Min

  • +1 in reply to peter.min

    Hi Peter,

    Sorry for the late reply. I am just back from Easter vacation.

    Yes, I can confirm your assumption. The default setting of XSYSTEMMODE is 1,0,0,0, after reset, which means only LTE-M support is enabled according to

    https://infocenter.nordicsemi.com/topic/ref_at_commands/REF/at_commands/mob_termination_ctrl_status/xsystemmode_set.html

    Best regards,

    Charlie

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