On Wed, Dec 18, 2013 at 03:52:28PM +0100, Andreas Eversberg wrote:
classes) would allow to allocate TS1..TS4, so the
phone can still
transmit on TS3. the phone would schedule the following 8 bursts for
one frame: "-tttt-r--" (t=TX, r=RX) if i would provide an UL TBF
with TS1, the phone would be able to do the following scheduling
only: "-tt-r---", so the algorithm can only assign TS1 and TS2 for
RX. this means that the multislot algorithm must consider the RX
slots when choosing a good TX slot, even with no ongoing DL TBF.
Could you add TS boundaries to your ascii art? I still didn't read/
understand the constraints with TrX.
* in case of first DL TBF assignment (phone is in
packet idle mode),
i use multislot algorithm too, because i know the multislot class
from the LLC-DATA message. it is no problem to assign a single, but
why do you want to assign a single slot here?
It is my understanding of the current code. In case we start with a
DL TBF. We will need to create an immediate assignment and send it
through the PCH. On the immediate assignment we can only announce
one TS/PDCH. (We could follow-up with another control command to
inform the phone about the other dl assignments it has).
PS: My scheduling "fair-ness" patches create another issue. The code
should make sure that a DL_ASSIGNMENT is scheduled _before_ the final
uplink ack/nack. Even if it requires a bit more memory I think it
would make sense if we have a small CTRL command queue inside the TBF.