osmo-bsc default config file time-slot TS0 configuration CCCH+SDCCH4 understanding

This is merely a historical archive of years 2008-2021, before the migration to mailman3.

A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/baseband-devel@lists.osmocom.org/.

Mario Lucas mariolucas75 at mail.ru
Fri Sep 10 20:40:43 UTC 2021


Dear All,
Could you please advise me based on what logic (how) can i decompose logical channel configuration  CCCH+SDCCH4 which is mapped on TS0… ?
So my understanding is as follows:
There are 51 TDMA frames in multiframe, therefore i am having 51 consecutive TS0 slots. So  CCCH+SDCCH4 should be redistributed in these 51 slots.
SDCCH4 means that there are 4 SDCCH blocks, each block is having 4 bursts or 4 timeslots in another words (as i understand to transmit SDCCH «unit data» it is needed 4 burts), so 16 slots are occupied by SDCCH.
Does it mean 51-16 = 35 slots to be occupied by CCCH ?
If i use following notation CCCH=C, SDCCH1=S1, SDCCH2=S2, SDCCH3=S3 and SDCCH4=S4 does the decomposition looks like:
 
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC S1S1S1S1 S2S2S2S2 S3S3S3S3 S4S4S4S4
If so should not there be an idle slots … ?
 
Thank you so much.
 
 
--
Mario Lucas
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20210910/9207b7af/attachment.htm>


More information about the baseband-devel mailing list