19th March 2010 at 08:48
#61508
ATTO
Guest
Hi NK,
TDWNACC is triggered only when all TCH channels are out of service for any reasons that can be hard/soft.
BDWNACC is triggered when BCCH channel is not available.
When TCHs time slots are locked this means that these TCHs are already carrying Half rate Traffic ( 1 HR traffic). Ongoing assignments of TCh will only be HR.
Regards.