[srslte-users] How to guarantee the timestamp of UHD send function in srsLTE(pdsch_enodeb)

Ismael Gomez ismael.gomez at softwareradiosystems.com
Fri May 5 15:15:37 UTC 2017


Hi,

The pdsch_enodeb is just a simple example for transmitting a continuous
stream of samples. It does not use timed transmissions. srsUE on the other
hand does exactly what you mention for TX.

On Fri, 5 May 2017 at 04:41 Xingguang Wei <jxweixingguang at 163.com> wrote:

>
> Dear ismael and softwareradiosystems,
>
> To the best of my knowledge, most of the SDR systems guarantee the UHD tx
> timestamp by getting the timestamp from rx function(recv). However, the
> srsLTE (pdsch_enodeb) only has tx procedures. And I observed that srsLTE
> (pdsch_enodeb)  uses the function of *cuhd_send2, *which has not done the
> time align.
>
> So, how can the srsLTE (pdsch_enodeb) guarantee the timestamp of UHD *send
> function ?*
>
> Any comments will be much appreciated.
>
> Sincerely.
> --
>
> xingguang Wei
> Beijing University of Posts and Telecomunications
> Mail: jxweixingguang at 163.com
>
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