PRACH fails

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Neels Hofmeyr nhofmeyr at sysmocom.de
Fri Sep 9 03:15:18 UTC 2016


On Fri, Sep 09, 2016 at 09:14:32AM +0800, Harald Welte wrote:
> * RACH for packet service is not equal PRACH.  PRACH is a dedicated
>   logical channel on the Um interface that _can_ be enabled (like PBCCH,
>   PCCCH, ...) but whihc is neither supported by osmo-bts/osmo-pcu, nor
>   used anywhere.  The 3GPP removed the PBCCH/PCCCH and all related
>   channels several years ago from the specs, as there was no operator
>   known to use any of them.  So new handsets no longer (have to) support
>   those channels, which means it is utterly useless for a new
>   implementation like the Osmocom one to bother to support them.

Ah, good to know.
Is PTCCH also one of those? It sounds similar, but I guess not?
https://osmocom.org/issues/1796

~Neels

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