Hi,
I have Tx disabled anyway, but it didn't hit me until you said it out loud. Dedicated-mode SDCCH also has uplink slots, doesn't it?
Yes. And it also has SACCH slots that the CBCH doesn't have.
To make this work I guess we need to implement some separate CBCH mode in L1.
Yup.
It seems that CBCH never have subslots ? (Looking at GSM 05.02 Clause 7 Table 3 of 9).
If it says SDCCH4 it's always B32..B35 (like a SDCCH4 subslot 2) If it says SDCCH8 it's always B8..B11 (like a SDCCH8 subslot 2)
I'll look into adding a command to support going to that channel along with the appropriate scheduling.
In which case, I suppose it should be possible to continue receiving CCCH at the same time?
No, we can only get data from 1 timeslot in each frame, so if it's in a SDCCH8 there can be conflicts. (If it's in SDCCH/4 then that should be OK)
We'll probably be able to do that only when we get to DRX (where we only listen to specific slots).
Cheers,
Sylvain