Network & Coverage

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  eDRX Support
  nb-iot germany netherlands roadmap edrx • • Tal  

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  Forgot to mention - will it be supported for LTE Cat M1?
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  NB-IoT & location tracking
  nb-iot use cases localization gps tracking • • afzal_m  

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  Hi All, We would like: Accuracy of 3 to 5 meters latitude / longitude Correct altitude measurement(up to 1 meter, for certain use cases even more important than lat and longitude). This is for height measurements in building so that floor levels can be determined accurately We would like secured connections to the service, preferably a VPN A process that clients can be checked if they are to be trusted(we don’t want to deliver this sensitiedata to bad people with sinister plans) Adjustable frequency of positioning, higher frequency means paying more. High frequency is refresh every second(for emergencies for instance) Possibility to cross reference/compare the data with GPS data out of the field A way to determine which radio’s on which cell towers are used, this will be important if the target is moving. A service which checks the availability of the positioning service and availability of data Questions Is the data available on all networks(2G, 3G, 4G - NB-IoT/LTE-M enabled devices). My / Our assumption is that it is, as long as three cell towers/radio’s can be connected to. Are changes necessary in the firmware of cellular modules to use the service? Is the data available as a service, so do we receive aggregated data. Or do we receive lang, long and altitude plus data where the data is retrieved from(cell towers and radio’s plus the signal strength data which comes with it? Is the service strictly available on the network of T-Mobile? Or is the data still available when roaming takes place to other networks? How reliable is the service, especially on moving targets, when roaming is necessary? How accurate is the service? Or how accurate can you get? To which height is the service still available(we have gone up to 2,5 kilometers on NB-IoT). Ewout Karel has done about 300 - 500 meters on a relatively fast moving target
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  PSM Calculation Tool - T3412, T3324 & value decoding
  nb-iot psm tau • • MarPi  

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  Hi all, I would like to share a small web tool to help you in T3412, T3324 - PSM - at+cpsms command generation and especially decoding. As you might have recognized the mobile network is the master - has the last word regarding your PSM timer settings for your application. The device sends a PSM setting request via at+cpsms (in attach request and/or TAU) and the network will reply in the related accept message (reflected in at+cereg=4/at+cereg? output or URC) with the ‘granted’ value. One reason for this is to prevent overload situations in the network if e.g. 10000 smart meters wake up from PSM at the same time in the same cell. https://www.thalesgroup.com/en/markets/digital-identity-and-security/iot/resources/developers/psm-calculation-tool Using the sliders on this page you can change your desired T3412 and T3324 values and copy the at+cpsms from the shown table. In the buttom section you can enter the at+cpsms? command output as well as the at+cereg? output (after setting at+cereg=4) to get the values decoded. These are the value the network will finally use and your NB-Iot or CatM module has to use. I hope it will help you a little bit. Best regards, Markus
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  NB-IoT network and DNS
  nb-iot starter kit dns • • Artur S  

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  Hi @Artur-S , @Stefan-de-Lange is correct public DNS is not reachable from the IoT creators sim cards. I didn’t see and DNS option available in NB-IOT only capable modems I must say. Indeed LTE-M gives access to public DNS and internet. You could try one of the prepaid cards some of the T-Mobile operators are offering for IoT.
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  Attach to NB-IoT network
  nb-iot germany connection • • HNEE  

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  Sorry, I missed this post. Showing the payload in our GUI is not a problem for new devices. What you need to do is the following: APN cdp.iot.t-mobile.nl Send your payload to: 172.27.131.100
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  Wake-up signaling
  nb-iot network germany edrx release 15 • • Frank Wolf  

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  Hi Frank, WUS and other 3GPP Release 15 features aren’t yet supported in the DT networks and to our knoweldge in most other Operator networks. Our focus is right now on completing the roll-out of key features like eDRX, while in parallel planning the introduction of new Rel. 14 features like New Category NB2. WUS and other important Rel. 15 features are of course already on our Roadmap, unfortunately we cannot give you a concrete date when those will be deployed in the our networks yet. Can’t eDRX to a certain extent address your power saving requirements for the time being? Best regards, Ronan
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  eSIM and NB-IoT
  nb-iot esim • • X LOGIC  

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  No eSIM, but we do have the following available: MFF2 sim-on-chip nuSIM (the sim profile integrated in the cellular module)
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  BG96 sim error
  nb-iot connection sim card • • Sergey Vladimirov  

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  Good morning @afzal_m, is it possible this Sim requires 3v? This would explain weird behavior when the module provides only 1.8v
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  NBIoT Roaming
  nb-iot telekom coverage • • rhalflex  

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  Spain confirmed!
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  Does roaming works in Spain with Vodafone?
  nb-iot roaming spain • • Roalnd Baldin  

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  Hi, today we took a nice comort sensor (CO2/Temp/Humidity/BodySense) in Barcelona into operation. We configured 21401 as PLMN ID for Vodafone Spain and used 20 for the frequencyband (800Mhz). cdp.iot.t-mobile.nl as APN for IoT Creators It worked immediately without any problems. Regards, Roland
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  How long does it take that the network detects a dead IP connection?
  nb-iot network connection dcd • • Roalnd Baldin  

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  @Roalnd-Baldin The 2 hours is probably related to the 3GPP TAU timer, if it expires the device is implicitly released from the network I believe. Which is bad if you have a device that wants to sleep for more than 2 hours. So usually you set this value to whatever is the greatest the network accepts. You can run AT+CEREG=5, AT+CEREG? and check the returned values. It will tell you the timers that are used.
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  DCD Function Timeout in a Cellelur Module
  nb-iot quectel dcd timeout • • Wessam  

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  @Wessam Hi, have a look to https://forum.iotcreators.com/topic/626/how-long-does-it-take-that-the-network-detects-a-dead-ip-connection. Maybe it contains some info you are interested in. Regards, Roland
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  Network time
  nb-iot network germany at command telekom lte-m • • Sven Brandau  

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  @Sven-Brandau said in Network time: Hello, is the feature ‘network time’ (3GPP 27.007 Ch. 8.15) for NB-IOT/Cat-M1 supported in the Deutsche Telekom mobile network? The NRF9160 SIP returns an error, while requesting the time. Also after a long time of being connected. Hi Sven, sorry that it took us so long. But now we have a clear statement from our experts that the network time feature is NOT supported in our network in Germany.
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  SIM Chips - roaming in Italien
  nb-iot sim card roaming italy • • Malte Neumann  

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  @Malte-Neumann Hi Malte, please send the 10 ICCIDs to support@iotcreators.com . I will check them . Please use as PLMN IDs from page https://docs.iotcreators.com/docs/telekom-iot-networks-in-europe Regards, Roland
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  PSM NB-IoT Timer
  nb-iot germany connection psm tau timer • • Henning Neuse  

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  @Ronan-Lacroix I have a question: The min value for T3412 is only valid for the “extended” version of TAU ? Does the 1 hour apply also to the min. value of standard TAU or is it shorter? Having a min TAU of 1 hour seems to me for many use cases difficult because the devices in those use cases need to wakeup from sleeping much more often (e.g. every 10 minutes). Many many thanks for your support! Regards, Roland I
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  At what altitude can I expect to send and receive messages above the Netherlands
  nb-iot coverage netherlands signal • • Marijn  

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  @Marijn many thanks for this . I am highly interested in this. Regards, Roland
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  Sending data with NB IoT from Netherlands to Turkey
  nb-iot connection quectel netherlands • • Mert Karabagli  

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  For the final reply, the datas that are being sent to beeceptor are forwarded to the HTTP endpoint in Turkey. I entered the url of the server In Turkey to the proxy settings on my beeceptor page. So now the problem is handled. Thank you everyone. Kind regards, Mert
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  Amazon Web Service (AWS) via NB-IoT or LTE-M ?
  nb-iot germany lte-m aws • • Holger Wech  

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  @Holger-Wech you can use LTE-M instead of the 2G/3G fallback that is described in our quick start guide. Please use the APN internet.m2mportal.de for LTE-M.
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  LTE-M or NB-IoT, that is the question…
  network telekom coverage lte-m • • Roman Dyzhyk  

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  Hi, I did “normal” TCP/IP MQTT on top of NB-IoT connection with the Quectel BC66. So TCP/IP is possible. But I didn’t try to post a normal HTTP request. LWM2M is implemented on top of CoAP and UDP. By this it works perfectly on NB-IoT. It is also supported by Quectel BC66. We tested it successfully with Eclipse Leshan server and the Nokia Impact LWM2M server. Regards, Roland
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  Limited Data Rate after to many messages on aday?
  nb-iot limitations data rate signal • • Timo Siekmann  

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  @Timo-Siekmann said in Limited Data Rate after to many messages on aday?: Quectel BG96 Hi, please try: AT+QCSCON=1 AT+CEREG=4 I highly suggest to plot the current too.
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  eDRX in Germany
  nb-iot germany roadmap edrx • • Christian  

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  Unfortunately, our colleagues from the technical department informed us that eDRX has to be postponed again. Introduction is now planned for January 2021.
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  SIMcom7070G PING working code
  nb-iot germany connection at command simcom • • Daniel Rueppel  

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  Hi Eben, Quick feedback: I can use GNSS and TCP at the same time using the SIM7000E using the latest firmware, which I had to update beforehand. Best Regards, Daniel AT+CGMR Revision:1529B03SIM7000E OK AT+CGNSPWR=1 OK AT+CGNSTST=1,1 OK $GNGGA,,,,,,0,,,,,,,,*78 $GNRMC,,V,,,,,,,,,,N*4D $GPGSV,1,1,03,18,,,32,20,,,33,30,,,38*78 $GNVTG,,T,,M,,N,,K,N*32 $GPGSA,A,1,,,,,,,,,,,,,,,,*32 $GLGSA,A,1,,,,,,,,,,,,,,,*02 $GAGSA,A,1,,,,,,,,,,,,,,,,*23 AT+CGNSTST=1,1 OK $GNGGA,,,,,,0,,,,,,,,*78 $GNRMC,,V,,,,,,,,,,N*4D $GLGSV,1,1,04,69,04,320,31,85,11,011,23,,,,26,86,00,056,*5C $GPGSV,2,1,06,07,23,066,34,15,34,293,22,18,12,305,32,20,01,329,35*76 $GPGSV,2,2,06,28,49,135,28,30,54,067,38*7D $GNVTG,,T,,M,,N,,K,N*32 $GPGSA,A,1,,,,,,,,,,,,,,,,*32 $GLGSA,A,1,,,,,,,,,,,,,,,*02 $GAGSA,A,1,,,,,,,,,,,,,,,,*23 AT+CGNSTST=1,1 OK ... got a fix after that! Establish test TCP server (Simple Perl script) AT+CPIN? +CPIN: READY OK AT+CSQ +CSQ: 9,99 OK AT+CGATT? +CGATT: 1 OK AT+CSTT? +CSTT: "CMNET","","" OK AT+CSTT="iot.1nce.net" OK AT+CIICR OK AT+CIFSR 100.84.13.2 AT+CIPSTART="TCP","10.65.61.189","5000" OK CONNECT OK WILMA-SERVER #1 AT+CGNSTST=1,1 OK ... Got GPS FIX AT+CIPSEND > PING SEND OK 100.84.13.2:PONG TCP connection successful.
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  Is there any way for my device to know if a packet it has sent has been received?
  nb-iot network connection • • Sopwafel  

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  @afzal_m Proprietary sucks I hope more open protocols are added, UDP is pretty limiting