wiki:Tutorials/g0WmLTE/Tutorial5

Version 33 (modified by agosain, 6 years ago) ( diff )

AmariSoft LTE

Prerequisites

This tutorial series assumes you have an ORBIT account, have scheduled a session on the ORBIT testbed, are familiar with SSH'ing into the testbed itself, and are familiar with the basics of running ORBIT experiments. If you have not done these things yet, you may wish to do so before taking a look at this slightly more advanced experiment. If you are unfamiliar with or are entirely new to ORBIT, you may wish to start here.

The image used for this experiment is 'baseline.ndz'. In this tutorial we will use nodes equipped with Netgear AC341u LTE dongles. The basestation is Amarisoft running on Bsc03out.

During a normal experiment using OMF, the following actions are scripted and automated. This is a look at the steps involved in something as simple as starting an LTE connection behind the scenes.

You will run the following commands on node7-1.grid.orbit-lab.org

After connecting to the grid console:

  1. omf load -i baseline.ndz -t node7-1.grid.orbit-lab.org
  2. omf tell -a on -t node7-1.grid.orbit-lab.org
    1. It will take roughly 60 seconds to come up.
  3. ssh root@node7-1.grid.orbit-lab.org

By Default Orbit nodes do not configure any wireless devices. The following 2 are the drivers for the Sierra wireless Netgear LTE dongle

  1. modprobe GobiSerial
  2. modprobe GobiNet
  3. minicom -D /dev/ttyUSB1
  4. AT!ippassthrough?
    1. It should return 1
    2. If it does not, run AT!ippassthrough=1 then AT!reset
  5. AT!entercnd="A710"
    1. You should see OK
  6. AT!dxcfg=wwan,connect,11
    1. You should see OK then $QCRMCALL: 1, V4
  7. at!gstatus?
    1. Will return a status like:
      at!gstatus?                                                                                                         
      !GSTATUS: 
      Current Time:  10049            Temperature: 42
      Bootup Time:   0                Mode:        ONLINE         
      System mode:   LTE              PS state:    Attached     
      LTE band:      B25              LTE bw:      10 MHz  
      LTE Rx chan:   8365             LTE Tx chan: 26365
      EMM state:     Registered       Normal Service 
      RRC state:     RRC Connected  
      IMS reg state: No Srv  
      
      RSSI (dBm):    -83              Tx Power:    0
      RSRP (dBm):    -117             TAC:         0001 (1)
      RSRQ (dB):     -10              Cell ID:     01A2D001 (27447297)
      SINR (dB):      1.6
      
  8. Exit Minicom by PRESSING Ctrl+A followed by x, then enter to select ok.
  9. dhcpcd eth2 followed by enter to get a new line.
    1. You should get an address in the 192.168.3.0/24 subnet.
  10. ping 192.168.3.1
    1. You have successfully communicated with the basestation.
    2. You can cancel the ping with Ctrl+C
  11. iperf -c 192.168.3.1
    1. This will report your bandwidth to the basestation.

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