Re: [Discuss-gnuradio] Is gr-lte working for anyone?

[Balthasar Indermuehle]

Hi Johannes

Thanks for your swift reply. By samples do you mean a recorded iq
sample? I know they can get quite large, but instead you could provide
a script that uses eg openLTE to create sample data that you know
works?

LTE is a lot more complicated than GSM by the looks of it. All I need
to do is decode the cell ids , lac and mnc... I think your MIB/SIB
decoder should be able to do this in principle?

Cheers

Balt

On 12 January 2016 at 05:20, Johannes Demel <address@hidden> wrote:
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> Hi Balthasar,
>
> I know this is a bit tricky. Also I'd like to provide samples but
> that's impossible. They are usually just to large.
>
> 'hier_block_install_helper.py' started as a little tool to compile all
> the hier blocks. You just didn't need to open them manually. Something
> that might be confusing because nested hier blocks exist. Due to a
> couple of contributions the number of hier blocks grew quite large and
> it is now necessary to run the script multiple times.
> If I recall correctly GRC might now be able to compile hier blocks
> automatically. I didn't check it but it might work too.
>
> The source files must be provided by you or you should be able to
> generate them with the test code. Though this is still experimental.
>
> The file 'lte_top_block_mimo_2tx.grc' was a mess. I'm sorry for this.
> Just fixed that. Though samples still need to be provided.
>
> Cheers
> Johannes
>
> On 11.01.2016 15:50, Balthasar Indermuehle wrote:
>> Hi all,
>>
>> I just installed a brand new Ubuntu 14.04 LTS machine with the
>> latest GNURadio via pybombs. gr-gsm works a treat, RDS decoding as
>> well... but the LTE sample blocks simply won't compile, there are
>> loads of compilation errors (when e.g. running the
>> ~/pybombs/src/gr-lte/examples/hier_block_install_helper.py half
>> the blocks won't compile).
>>
>> Trying to bring some order into the gr-lte blocks seems pretty
>> futile - there are references to files that supposedly exist in
>> johannes's home directory hard coded into the blocks, these files
>> do not exist in the distro even though part of the directory
>> structure matches the distribution. Just one example:
>> lte_top_block_mimo_2tx has a variable block that points to:
>> np.load('/home/johannes/src/gr-lte/python/lte_test/lte_samples.npy')
>> a numpy array by the looks of it but it isn't there.
>>
>> Before I pull anymore hair out, does anyone have this installed
>> and working to the point of decoding a live LTE MIB?
>>
>> Cheers
>>
>> - Balt
>>
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