[Asset Tracker] GPS unable to work with NB-IoT

[Duy]

Dear Nordic Support,

I am doing some test on the Thingy:91 v1.0.0 in Vietnam. I am running 2 examples: Asset Tracker with NB-IoT + GPS and GPS.

When I use the stanalone GPS example, I can get the fixed GPS. However, when I run the Asset Tracker I cannot get the fixed GPS.  When I hold the button of the board to turn to GPS mode, it also cannot get the fixed GPS.

I am using the master branch, module firmware v1.1.0 and nrf9160_pca20035ns. 

I attached to log results with this post, could you help analyzing the root cause and giving me some hints to fix it? I really appreciate that.

Thank you and best regards,

            Duy

[Martin Lesund]

Hi Duy,

Please get in contact with Viettel Telecom with regards to if they support PSM mode or eDRX intervals for NB-IoT.

In the asset_tracker sample, you are running the Modem on the NB-IoT network, where it tries to go into PSM mode to be able to turn on the GPS. If the network does not support PSM mode, then you won' be able to run it from default.

Please share the whole log by clicking this button:

best regards,

Martin L.

[Duy]

Hello Martin,

Sorry for my late reply, Viettel Telecom don't support PSM. 

Do I need to modify anything to make it run with eDRX? Or at least to make it run GPS and NB-IoT at the same time without PSM.

Thank you and best regards,

            Duy

[Martin Lesund]

Hi Duy,

If Viettel Telecom does not support PSM mode, it is also possible that they do not support the eDRX feature in RRC IDLE mode.

The nrf91 cannot run GPS and NB-IoT communication concurrently. The GPS can only be used when the modem is not being used by the LTE network. 

So you can use the GPS when the LTE is in PSM mode or in between the eDRX intervals.

First, let us check if the network supports eDRX intervals by sending some AT commands where you request eDRX intervals.

Please flash this app: thingy91_at_client_v0.2.3.hex

Send the following commands:

at+cfun=4
at%xsystemmode=0,1,0,0
at%XEPCO=0
at+cfun=1
#wait 2 minutes
AT+CEDRXS=2,5,"1000"

You should get a response from the network if it will provide you with that interval.

Best regards,

Martin L.

[Duy]

Hi Martin,

Thank you for your reply. I runs the commands like you shows, I got "OK" returned when running AT+CEDRXS=2,5,"1000".

Then I used AT+CEDRXS? to check again and got +CEDRXS: 5,"0010".

I also attached the log file. 

Fullscreen 2538.2019-12-11T03_00_46.276Z-log.txt Download

2019-12-11T03:00:46.854Z INFO Application data folder: C:\Users\14106\AppData\Roaming\nrfconnect\pc-nrfconnect-linkmonitor
2019-12-11T03:00:46.979Z DEBUG App pc-nrfconnect-linkmonitor v1.1.1 official
2019-12-11T03:00:46.979Z DEBUG App path: C:\Users\14106\.nrfconnect-apps\node_modules\pc-nrfconnect-linkmonitor
2019-12-11T03:00:46.979Z DEBUG nRFConnect 3.3.0 is supported by the app (^3.2.0)
2019-12-11T03:00:46.979Z DEBUG nRFConnect path: C:\Users\14106\AppData\Local\Programs\nrfconnect\resources\app.asar
2019-12-11T03:00:46.979Z DEBUG HomeDir: C:\Users\14106
2019-12-11T03:00:46.979Z DEBUG TmpDir: C:\Users\14106\AppData\Local\Temp
2019-12-11T03:00:48.219Z INFO Modem port is opened
2019-12-11T03:00:48.226Z DEBUG modem >> AT+CFUN?\x0D\x0A
2019-12-11T03:00:48.232Z DEBUG modem << +CFUN: 1\x0D
2019-12-11T03:00:48.247Z DEBUG modem << \x0A
2019-12-11T03:00:48.249Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.266Z DEBUG modem >> AT+CGSN=1\x0D\x0A
2019-12-11T03:00:48.275Z DEBUG modem << +CGSN: "352656100837650"\x0D\x0A
2019-12-11T03:00:48.277Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.280Z DEBUG modem >> AT+CGMI\x0D\x0A
2019-12-11T03:00:48.289Z DEBUG modem << Nordic Semiconductor ASA\x0D\x0A
2019-12-11T03:00:48.294Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.297Z DEBUG modem >> AT+CGMM\x0D\x0A
2019-12-11T03:00:48.309Z DEBUG modem << nRF9160-SICA\x0D\x0A
2019-12-11T03:00:48.312Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.316Z DEBUG modem >> AT+CGMR\x0D\x0A
2019-12-11T03:00:48.326Z DEBUG modem << mfw_nrf9160_1.1.0\x0D
2019-12-11T03:00:48.329Z DEBUG modem << \x0A
2019-12-11T03:00:48.331Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.332Z INFO Nordic Semiconductor ASA nRF9160-SICA [mfw_nrf9160_1.1.0] SerNr: 352656100837650
2019-12-11T03:00:48.341Z DEBUG modem >> AT+CEMODE?\x0D\x0A
2019-12-11T03:00:48.346Z DEBUG modem << +CEMODE: 0\x0D
2019-12-11T03:00:48.358Z DEBUG modem << \x0A
2019-12-11T03:00:48.359Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.365Z DEBUG modem >> AT%XCBAND=?\x0D\x0A
2019-12-11T03:00:48.377Z DEBUG modem << %XCBAND: (1,2,3,4,5,8,12,13,17,19,20,25,26,28,66)\x0D
2019-12-11T03:00:48.379Z DEBUG modem << \x0A
2019-12-11T03:00:48.380Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.393Z DEBUG modem >> AT+CMEE?\x0D\x0A
2019-12-11T03:00:48.398Z DEBUG modem << +CMEE: 0\x0D
2019-12-11T03:00:48.408Z DEBUG modem << \x0A
2019-12-11T03:00:48.409Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.413Z DEBUG modem >> AT+CMEE=1\x0D\x0A
2019-12-11T03:00:48.424Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:00:48.427Z DEBUG modem >> AT+CNEC?\x0D\x0A
2019-12-11T03:00:48.431Z DEBUG modem << +CNEC: 0\x0D
2019-12-11T03:00:48.437Z DEBUG modem << \x0A
2019-12-11T03:00:48.441Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.444Z DEBUG modem >> AT+CNEC=24\x0D\x0A
2019-12-11T03:00:48.447Z DEBUG modem << OK\x0D
2019-12-11T03:00:48.456Z DEBUG modem >> AT+CGEREP?\x0D\x0A
2019-12-11T03:00:48.464Z DEBUG modem << +CGEREP: 0,0\x0D
2019-12-11T03:00:48.465Z DEBUG modem << \x0A
2019-12-11T03:00:48.468Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.475Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:00:48.490Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D\x0A
2019-12-11T03:00:48.492Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.497Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:00:48.508Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2019-12-11T03:00:48.510Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.514Z DEBUG modem >> AT+CGEREP=1\x0D\x0A
2019-12-11T03:00:48.525Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:00:48.531Z DEBUG modem >> AT+CIND=1,1,1\x0D\x0A
2019-12-11T03:00:48.541Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:00:48.547Z DEBUG modem >> AT+CEREG=2\x0D\x0A
2019-12-11T03:00:48.559Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:00:48.562Z DEBUG modem >> AT+CEREG?\x0D\x0A
2019-12-11T03:00:48.575Z DEBUG modem << +CEREG: 2,1,"61CB","09045317",9\x0D\x0A
2019-12-11T03:00:48.577Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.592Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:00:48.596Z DEBUG modem << OK\x0D
2019-12-11T03:00:48.600Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:00:48.609Z DEBUG modem << +COPS: 0,2,"45204",9\x0D
2019-12-11T03:00:48.611Z DEBUG modem << \x0A
2019-12-11T03:00:48.612Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.625Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:00:48.630Z DEBUG modem << %XCBAND: 3\x0D
2019-12-11T03:00:48.635Z DEBUG modem << \x0A
2019-12-11T03:00:48.637Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.647Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:00:48.657Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D\x0A
2019-12-11T03:00:48.660Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.663Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:00:48.674Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2019-12-11T03:00:48.675Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.679Z DEBUG modem >> AT%CESQ=1\x0D\x0A
2019-12-11T03:00:48.683Z DEBUG modem << OK\x0D
2019-12-11T03:00:48.692Z DEBUG modem >> AT+CESQ\x0D\x0A
2019-12-11T03:00:48.698Z DEBUG modem << +CESQ: 99,99,255,255,22,50\x0D
2019-12-11T03:00:48.707Z DEBUG modem << \x0A
2019-12-11T03:00:48.708Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.713Z DEBUG modem >> AT%XSIM=1\x0D\x0A
2019-12-11T03:00:48.723Z DEBUG modem << OK\x0D
2019-12-11T03:00:48.727Z DEBUG modem >> AT%XSIM?\x0D\x0A
2019-12-11T03:00:48.732Z DEBUG modem << %XSIM: 1\x0D
2019-12-11T03:00:48.742Z DEBUG modem << \x0A
2019-12-11T03:00:48.743Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.748Z DEBUG modem >> AT+CPIN?\x0D\x0A
2019-12-11T03:00:48.759Z DEBUG modem << +CPIN: READY\x0D
2019-12-11T03:00:48.760Z DEBUG modem << \x0A
2019-12-11T03:00:48.761Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.766Z DEBUG modem >> AT+CPINR="SIM PIN"\x0D\x0A
2019-12-11T03:00:48.781Z DEBUG modem << +CPINR: "SIM PIN",3\x0D
2019-12-11T03:00:48.793Z DEBUG modem << \x0A
2019-12-11T03:00:48.794Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.797Z DEBUG modem >> AT+CIMI\x0D\x0A
2019-12-11T03:00:48.808Z DEBUG modem << 452040070682607\x0D
2019-12-11T03:00:48.810Z DEBUG modem << \x0A
2019-12-11T03:00:48.811Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:00:48.811Z INFO IMSIdentity: 452040070682607
2019-12-11T03:01:12.660Z DEBUG modem << %CESQ: 255,0,255,0\x0D
2019-12-11T03:01:12.669Z DEBUG modem << +CEREG: 1,"FFFE","FFFFFFFF",9\x0D\x0A\x00
2019-12-11T03:01:12.676Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:01:12.680Z DEBUG modem << OK\x0D
2019-12-11T03:01:12.682Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:01:12.687Z DEBUG modem << +COPS: 0\x0D
2019-12-11T03:01:12.688Z DEBUG modem << \x0A
2019-12-11T03:01:12.689Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:12.695Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:01:12.705Z DEBUG modem << %XCBAND: 0\x0D\x0A
2019-12-11T03:01:12.707Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:12.719Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:01:12.727Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D
2019-12-11T03:01:12.735Z DEBUG modem << \x0A
2019-12-11T03:01:12.737Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:12.740Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:01:12.746Z DEBUG modem << +CGACT: 0,1\x0D
2019-12-11T03:01:12.752Z DEBUG modem << \x0A
2019-12-11T03:01:12.753Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:14.390Z DEBUG modem << %CESQ: 49,2,23,3\x0D
2019-12-11T03:01:14.397Z DEBUG modem << +CEREG: 1,"61CB","09045317",9\x0D\x0A\x00
2019-12-11T03:01:14.405Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:01:14.417Z DEBUG modem << OK\x0D
2019-12-11T03:01:14.420Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:01:14.436Z DEBUG modem << +COPS: 0,2,"45204",9\x0D\x0A
2019-12-11T03:01:14.438Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:14.443Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:01:14.458Z DEBUG modem << %XCBAND: 3\x0D\x0A
2019-12-11T03:01:14.460Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:14.469Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:01:14.487Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D\x0A
2019-12-11T03:01:14.488Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:01:14.493Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:01:14.507Z DEBUG modem << +CGACT: 0,1\x0D
2019-12-11T03:01:14.508Z DEBUG modem << \x0A
2019-12-11T03:01:14.509Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:11.285Z DEBUG modem << %CESQ: 255,0,255,0\x0D\x0A
2019-12-11T03:02:11.294Z DEBUG modem << +CEREG: 1,"FFFE","FFFFFFFF",9\x0D\x0A\x00
2019-12-11T03:02:11.301Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:02:11.306Z DEBUG modem << OK\x0D
2019-12-11T03:02:11.310Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:02:11.315Z DEBUG modem << +COPS: 0\x0D
2019-12-11T03:02:11.317Z DEBUG modem << \x0A
2019-12-11T03:02:11.318Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:11.325Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:02:11.330Z DEBUG modem << %XCBAND: 0\x0D
2019-12-11T03:02:11.331Z DEBUG modem << \x0A
2019-12-11T03:02:11.332Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:11.345Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:02:11.357Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D\x0A
2019-12-11T03:02:11.359Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:11.364Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:02:11.375Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2019-12-11T03:02:11.379Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:13.271Z DEBUG modem << %CESQ: 50,2,23,3\x0D
2019-12-11T03:02:13.278Z DEBUG modem << +CEREG: 1,"61CB","09045317",9\x0D\x0A\x00
2019-12-11T03:02:13.290Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:02:13.306Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:02:13.309Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:02:13.323Z DEBUG modem << +COPS: 0,2,"45204",9\x0D
2019-12-11T03:02:13.325Z DEBUG modem << \x0A
2019-12-11T03:02:13.326Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:13.329Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:02:13.342Z DEBUG modem << %XCBAND: 3\x0D
2019-12-11T03:02:13.343Z DEBUG modem << \x0A
2019-12-11T03:02:13.344Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:13.347Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:02:13.364Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","9.229.68.56",0,0\x0D\x0A
2019-12-11T03:02:13.366Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:13.377Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:02:13.390Z DEBUG modem << +CGACT: 0,1\x0D
2019-12-11T03:02:13.391Z DEBUG modem << \x0A
2019-12-11T03:02:13.392Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:02:28.159Z DEBUG modem << %CESQ: 50,2,29,4\x0D\x0A
2019-12-11T03:05:40.159Z DEBUG modem << %CESQ: 22,1,29,4\x0D
2019-12-11T03:05:42.719Z DEBUG modem << %CESQ: 47,2,29,4\x0D
2019-12-11T03:05:50.399Z DEBUG modem << %CESQ: 47,2,24,3\x0D
2019-12-11T03:06:08.170Z DEBUG modem >> at+cfun=4\x0D\x0A
2019-12-11T03:06:09.084Z DEBUG modem << OK\x0D\x0A
2019-12-11T03:06:09.090Z DEBUG modem << +CGEV: ME PDN DEACT 0\x0D\x0A\x00
2019-12-11T03:06:09.096Z DEBUG modem << +CEREG: 0,"61CB","09045317",9\x0D\x0A\x00
2019-12-11T03:06:09.099Z DEBUG modem << +CIND: "service",0\x0D
2019-12-11T03:06:09.102Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:06:09.103Z DEBUG modem << +CGEV: ME DETACH\x0D\x0A\x00
2019-12-11T03:06:09.114Z DEBUG modem << OK\x0D
2019-12-11T03:06:09.117Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:06:09.130Z DEBUG modem << OK\x0D
2019-12-11T03:06:17.698Z DEBUG modem >> at%xsystemmode=0,1,0,0\x0D\x0A
2019-12-11T03:06:17.714Z DEBUG modem << OK\x0D
2019-12-11T03:06:22.996Z DEBUG modem >> at%XEPCO=0\x0D\x0A
2019-12-11T03:06:23.009Z DEBUG modem << OK\x0D
2019-12-11T03:06:29.229Z DEBUG modem >> AT+CFUN=1\x0D\x0A
2019-12-11T03:06:29.270Z DEBUG modem << OK\x0D
2019-12-11T03:06:30.044Z DEBUG modem << %XSIM: 1\x0D
2019-12-11T03:06:30.055Z DEBUG modem >> AT+CPIN?\x0D\x0A
2019-12-11T03:06:30.061Z DEBUG modem << +CPIN: READY\x0D\x0A
2019-12-11T03:06:30.063Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:30.075Z DEBUG modem >> AT+CPINR="SIM PIN"\x0D\x0A
2019-12-11T03:06:30.088Z DEBUG modem << +CPINR: "SIM PIN",3\x0D
2019-12-11T03:06:30.094Z DEBUG modem << \x0A
2019-12-11T03:06:30.095Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:30.099Z DEBUG modem >> AT+CIMI\x0D\x0A
2019-12-11T03:06:30.112Z DEBUG modem << 452040070682607\x0D
2019-12-11T03:06:30.113Z DEBUG modem << \x0A
2019-12-11T03:06:30.114Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:30.115Z INFO IMSIdentity: 452040070682607
2019-12-11T03:06:42.072Z DEBUG modem << %CESQ: 50,2,23,3\x0D\x0A
2019-12-11T03:06:42.081Z DEBUG modem << +CEREG: 2,"61CB","09045317",9\x0D\x0A\x00
2019-12-11T03:06:43.133Z DEBUG modem << +CGEV: ME PDN ACT 0,0\x0D
2019-12-11T03:06:43.138Z DEBUG modem << +CNEC_ESM: 50,0\x0D\x0A\x00
2019-12-11T03:06:43.143Z DEBUG modem << +CEREG: 1,"61CB","09045317",9\x0D\x0A
2019-12-11T03:06:43.148Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:06:43.157Z DEBUG modem << +CIND: "service",1\x0D\x0A\x00
2019-12-11T03:06:43.160Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","11.184.0.228",0,0\x0D\x0A
2019-12-11T03:06:43.160Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:43.174Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:06:43.178Z DEBUG modem << OK\x0D
2019-12-11T03:06:43.181Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:06:43.191Z DEBUG modem << +CGACT: 0,1\x0D
2019-12-11T03:06:43.195Z DEBUG modem << \x0A
2019-12-11T03:06:43.197Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:43.212Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:06:43.224Z DEBUG modem << +COPS: 0,2,"45204",9\x0D\x0A
2019-12-11T03:06:43.228Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:43.246Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:06:43.252Z DEBUG modem << %XCBAND: 3\x0D
2019-12-11T03:06:43.255Z DEBUG modem << \x0A
2019-12-11T03:06:43.256Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:43.260Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:06:43.272Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","11.184.0.228",0,0\x0D
2019-12-11T03:06:43.276Z DEBUG modem << \x0A
2019-12-11T03:06:43.279Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:06:43.293Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:06:43.305Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2019-12-11T03:06:43.307Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:13.586Z DEBUG modem << %CESQ: 255,0,255,0\x0D\x0A
2019-12-11T03:07:13.595Z DEBUG modem << +CEREG: 1,"FFFE","FFFFFFFF",9\x0D\x0A\x00
2019-12-11T03:07:13.600Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:07:13.604Z DEBUG modem << OK\x0D
2019-12-11T03:07:13.607Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:07:13.618Z DEBUG modem << +COPS: 0\x0D\x0A
2019-12-11T03:07:13.620Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:13.634Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:07:13.639Z DEBUG modem << %XCBAND: 0\x0D
2019-12-11T03:07:13.640Z DEBUG modem << \x0A
2019-12-11T03:07:13.644Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:13.656Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:07:13.667Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","11.184.0.228",0,0\x0D\x0A
2019-12-11T03:07:13.669Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:13.672Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:07:13.685Z DEBUG modem << +CGACT: 0,1\x0D\x0A
2019-12-11T03:07:13.686Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:15.351Z DEBUG modem << %CESQ: 47,2,19,2\x0D
2019-12-11T03:07:15.361Z DEBUG modem << +CEREG: 1,"61CB","09045317",9\x0D\x0A\x00
2019-12-11T03:07:15.371Z DEBUG modem >> AT+COPS=3,2\x0D\x0A
2019-12-11T03:07:15.383Z DEBUG modem << OK\x0D
2019-12-11T03:07:15.389Z DEBUG modem >> AT+COPS?\x0D\x0A
2019-12-11T03:07:15.403Z DEBUG modem << +COPS: 0,2,"45204",9\x0D\x0A
2019-12-11T03:07:15.406Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:15.418Z DEBUG modem >> AT%XCBAND\x0D\x0A
2019-12-11T03:07:15.431Z DEBUG modem << %XCBAND: 3\x0D
2019-12-11T03:07:15.433Z DEBUG modem << \x0A
2019-12-11T03:07:15.434Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:15.436Z DEBUG modem >> AT+CGDCONT?\x0D\x0A
2019-12-11T03:07:15.452Z DEBUG modem << +CGDCONT: 0,"IP","v-internet","11.184.0.228",0,0\x0D
2019-12-11T03:07:15.454Z DEBUG modem << \x0A
2019-12-11T03:07:15.455Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:15.459Z DEBUG modem >> AT+CGACT?\x0D\x0A
2019-12-11T03:07:15.474Z DEBUG modem << +CGACT: 0,1\x0D
2019-12-11T03:07:15.486Z DEBUG modem << \x0A
2019-12-11T03:07:15.486Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:07:19.999Z DEBUG modem << %CESQ: 47,2,24,3\x0D
2019-12-11T03:07:40.479Z DEBUG modem << %CESQ: 47,2,29,4\x0D\x0A
2019-12-11T03:07:43.039Z DEBUG modem << %CESQ: 52,2,29,4\x0D
2019-12-11T03:08:34.074Z DEBUG modem << %CESQ: 52,2,23,3\x0D\x0A
2019-12-11T03:08:53.144Z DEBUG modem >> AT+CEDRXS=2,5,"1000"\x0D\x0A
2019-12-11T03:08:53.149Z DEBUG modem << OK\x0D
2019-12-11T03:09:12.077Z DEBUG modem >> AT+CEDRXS?\x0D\x0A
2019-12-11T03:09:12.082Z DEBUG modem << +CEDRXS: 5,"0010"\x0D
2019-12-11T03:09:12.083Z DEBUG modem << OK\x0D\x0A\x00
2019-12-11T03:09:25.911Z DEBUG modem << %CESQ: 47,2,23,3\x0D\x0A
2019-12-11T03:10:16.420Z INFO Modem port is closed

Best regards,

    Duy

[Martin Lesund]

Hi Duy,
Let's take a look at two examples on how to set and read the eDRX values from one network that support it and for one that does not.

[Network supports the eDRX feature]:

So the first example we request the eDRX value "1000" from a network that supports this feature:

[Network does not support eDRX feature]:

The second example is on another network, but the same eDRX interval request:

From what I can see from your log, it looks like your network does not support this feature as of now.

Please get in contact with them for more details.

Best regards,

Martin L.