[srslte-users] Can't receive data in subframe 0

[Ismael Gomez]

sharetechnote.com is a good reference.

On Mon, 10 Apr 2017 at 16:18 Felipe Augusto Pereira de Figueiredo <
zz4fap at gmail.com> wrote:

> Dear folks,
>
> Could you kindly provide me with some references on how to calculate if
> there is enough space for the DCI and the PDSCH for a given CFI
> configuration?
> As told before, I'm trying to transmit data on subframe 0 but it has been
> no avail so far.
>
> I'm using CFI equal to 1 instead of 3 (but I also tried with CFI=3),
> sending just one DCI (I'm using the pdsch_enodeb example) and the data is
> using all the RBs (25 RBs) with MCS=0 which corresponds to a TB of 680 bits.
>
> I'd like to calculate it and try to understand what is happening.
>
> Many thanks and Best regards,
>
> Felipe Augusto
>
>
>
> On Mon, Apr 3, 2017 at 10:50 PM, Ismael Gomez <
> ismael.gomez at softwareradiosystems.com> wrote:
>
> I don't know. You should calculate it. It depends on the BW.
>
> On Mon, 3 Apr 2017 at 22:49 Felipe Augusto Pereira de Figueiredo <
> zz4fap at gmail.com> wrote:
>
> Dear Ismael,
>
> Many thanks for your reply!
>
> I'm using CFI equal to 1 instead of 3 (but I also tried with CFI=3),
> sending just one DCI (I'm using the pdsch_enodeb example) and the data is
> using all the RBs (25 RBs) with MCS=0 which corresponds to a TB of 680 bits.
>
> Do you think I have enough space for the DCI with that configuration?
>
> Thanks and Kind Regards,
>
> Felipe Augusto
>
>
>
> On Mon, Apr 3, 2017 at 10:41 PM, Ismael Gomez <
> ismael.gomez at softwareradiosystems.com> wrote:
>
> Hi Felipe,
>
> There are less resource elements in subframe 0 for PDSCH. Make sure that
> there is enough space for the DCI and the PDSCH for your CFI configuration.
>
> On Sun, 2 Apr 2017 at 11:16 Felipe Augusto Pereira de Figueiredo <
> zz4fap at gmail.com> wrote:
>
> Hi Folks,
>
> I'm doing some experiments with the srsLTE source code and I'd like to
> transmit data on every subframe 0, however, even after modifying the source
> code (the pdsch enodeb and ue examples) I'm not receiving anything on any
> subframe 0 except PBCH transmissions (MIB). I added some printf's and
> figured out that no DCI is being found during the blind search at ue side.
>
> I'm not sure if the problem is that the enodeb is not adding the DCI
> properly or if the ue is not being able to decode DCI on subframe 0.
>
> Is there any bug/tricky that refrains the eNodeB or the UE from
> transmitting/receiving data on subframe 0?
>
> I'm using pdsch_enodeb and pdsch_ue examples.
>
> Many thanks in advance and Kind Regards,
>
> Felipe Augusto
>
>
>
> ---------- Forwarded message ----------
> From: *Felipe Augusto Pereira de Figueiredo* <zz4fap at gmail.com>
> Date: Fri, Mar 31, 2017 at 5:17 PM
> Subject: Can't receive data in subframe 0
> To: srslte-users at lists.softwareradiosystems.com
>
>
> Hi srsLTE group,
>
> I'm doing some experiments with the code and I'd like to transmit data on
> subframe 0, however, even after modifying the source code I'm not receiving
> anything on any subframe 0 except PBCH transmissions (MIB). I figured out
> that any DCI is being found during the blind search but as I understand, at
> eNodeB side it is being added to the grid.
>
> Is there any bug/tricky that refrains the eNodeB or the UE from
> transmitting/receiving data on subframe 0?
>
> I'm using pdsch_enodeb and pdsch_ue examples.
>
> Thanks and Kind Regards,
>
> Felipe Augusto
>
>
>
>
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