How to test openLTE eNodeB
An open source 3GPP LTE implementation.
Status: Alpha
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First of all, I would like to thank the developers of this awesome project.
I am new to openLTE, have compiled on ubuntu, don't know how to proceed further, want to know following :-
1. Is it possible to test openLTE enodeb without using real UE. if yes, then how?
2. how octave code is used for enodeb, how they communicate with the USRP B2x0 hardware?
3. what are the roles of the LTE_fdd_dl_file_gen, LTE_fdd_dl_file_scan, LTE_file_recorder codes while testing eNodeB.
3. want to know the useful commands to run this project.
Regards.
Thanks for the kind words!
Here are answers to your questions:
1) It is not currently possible to test LTE_fdd_enodeb without a real UE.
However, you can run this without using any hardware, but it is not very
interesting.
2) The octave code was developed as a prototype for what became
liblte_phy.cc and LTE_fdd_dl_file_gen/LTE_fdd_dl_file_scan. It isn't
needed for use with LTE_fdd_enodeb.
3) These are all separate applications, there is no need to use them with
LTE_fdd_enodeb. Further description of what these applications do is
provided in README.
4) After compiling and executing LTE_fdd_enodeb, connect to port 30000
(i.e. telnet localhost 30000). After connecting, simply enter "help" and a
list of all the commands will be returned.
Hope this helps,
Ben
On Tue, Nov 18, 2014 at 4:31 AM, animesh animeshkc@users.sf.net wrote:
I am new in OpenLTE and I am trying to compile openLTE, on Ubuntu14.04, But getting the error:"Could not find gnuradio/gnuradio-{core,runtime} after GIT checkout GIT checkout of GNU Radio failed!", though I have installed GNU Radio.
I followed the Link: https://sourceforge.net/p/openlte/wiki/Installing%20OpenLTE/ to compile it.
don't know how to proceed further, and also want to know the following's :-
1. Is it possible to test openLTE enodeb without using real UE. if yes, then how?
2. I am looking for setting up an automation frame work using this simulation project. Is it a feasible idea. If yes, then do you have any example or any guide book for this.
3. want to know the useful commands to run this project.
Regards
Somnath
Thank you Ben for reply.
I have another query- if I don't want to use real UE, can't this eNodeB work with a UE application (simulator)?
I am seeing the 'help' control commands- start is for starting eNodeB. As you mentioned hardware is not required if I want only L2-3 to run, I want to use a ue simulator to communicate with eNodeB.
Regards.
Currently a real UE is needed to test LTE_fdd_enodeb. If you have a UE
simulator, you should be able to modify the code to take the simulator
input at any level (MME, RRC, PDCP, RLC, MAC, or PHY).
Thanks,
Ben
On Tue, Nov 25, 2014 at 4:56 AM, animesh animeshkc@users.sf.net wrote:
Thank You Ben for the informations. I have one more curiosity..is eNodeB supporting data plane (user traffic) also. I am not seeing DTCH/MTCH, RoHC and UM mode present in the code.It makes me think on this direction.
If data plane is present then will the real UE's voice call provide data OR a ue simulator can provide data.Am I right?
The latest release is the first to include user plane data. Be advised
that since it is the first release, it is not the most stable. MTCH an
RoHC are not currently supported, DTCH is supported but you won't see it
referenced in the code, UM mode for RLC is now supported as well.
Hope this helps,
Ben
On Mon, Dec 1, 2014 at 1:02 AM, animesh animeshkc@users.sf.net wrote:
Thank you Ben for your kind reply.
As I understood from discussion thread that if Samsung galaxy s3 is used as UE, then by user_add command the device can be added to PDN (eNodeB in this case), and further the device has to add "www.openLTE.com" as network name.
Can you please let me know how can I add network name in case I am using UE as a usb device.
Also , I want to know if this UE (if without RF) can use the same RF URSP B2X0 RF Hardware with eNodeB simultaneously.
Last edit: animesh 2014-12-09
I have been using a Samsung Galaxy S3 for all of my testing, but others
have been successfully using other UEs (i.e. Nexus 5 and Huawei
E3272s-153). You will need to have a USIM that supports MILENAGE, has been
programmed with OP=0x63BFA50EE6523365FF14C1F45F88737D, and for which you
know the K. You can then use the add_user command to add the UE's IMSI and
K from the USIM and IMEI. I have added "www.openLTE.com" as the default
APN as this matches what is sent in the Activate Default EPS Bearer Context
Request message. To do this, you will need to navigate to the APN
configuration portion of your UE's menu and change the setting.
Hope this helps,
Ben
On Tue, Dec 9, 2014 at 4:19 AM, animesh animeshkc@users.sf.net wrote: