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

On Mon, Jun 29, 2015 at 2:19 PM, Anderson, Douglas J.
<danderson@its.bldrdoc.gov> wrote:
> https://github.com/kit-cel/gr-lte/blob/master/docs/lte_cp_ffo_sync_hier.grc.png
>
> If I understand that right, it's saying that I actually don't need to retune
> the USRP, it just pumps samples into the input of the FFO Sync hier block,
> then the sync_frequency_c blocks mixes in a CW signal at the correct
> frequency to adjust the samples from the USRP. Yes?

Yes. You can perform frequency offset tracking and compensation
entirely on the host. There are some overhead advantages using DSP
tuning on the FPGA for the translation, but mathematically you should
end up with the same result.

-TT

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