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
4. modprobe GobiSerial
5. modprobe GobiNet
6. minicom -D /dev/ttyUSB1
7. AT!ippassthrough?
   1. It should return 1
   2. If it does not, run AT!ippassthrough=1 then AT!reset
8. AT!entercnd="A710"
   1. You should see OK
9. AT!dxcfg=wwan,connect,11
   1. You should see OK then $QCRMCALL: 1, V4
10. 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
       

11. Exit Minicom by PRESSING Ctrl+A followed by x, then enter to select ok.
12. dhcpcd eth2 followed by enter to get a new line.
    1. You should get an address in the 192.168.3.0/24 subnet.
13. ping 192.168.3.1
    1. You have successfully communicated with the basestation.
    2. You can cancel the ping with Ctrl+C
14. iperf -c 192.168.3.1
    1. This will report your bandwidth to the basestation.