Re: [Discuss-gnuradio] gr-lte vs gr::digital::ofdm*

[Martin Braun]

On 24.06.2015 08:48, Anderson, Douglas J. wrote:
> Lately I've been working with gr-lte and trying to use some of those
> blocks in my own application (not grc).
> 
> I'm still in the learning phase about ofdm/lte, and I'm struggling with
> the lack of documentation or comments in gr-lte.
> 
> I think I would prefer to use GNU Radio's built-in OFDM blocks for
> time/freq sync, CP removal, etc, and then lean on gr-lte blocks for
> decode/unpack operations.
> 
> My question is, is that practical? gr-lte uses a flowgraph like:
> 
> source -> cp-based timing sync -> lte PSS sync -> cp-based freq sync ->
> LTE SSS sync -> lte esimator -> decode stuff...
> 
> Are the gr::digital::ofdm* blocks too generic to understand things like
> LTE's primary and secondary sync symbols?

Hi Doug,

that's a big part of it. However, another part was that Johannes was
writing gr-lte while the OFDM subsystem was still maturing. I'm sure at
this point we could achieve more synergy between the projects.

Johannes hopefully has more insight he can provide.

Cheers,
M