5ms by default, easy to change (change the 10 in the loops)

if the behavior is worse than before, do git revert [commit ID]

Result of testing as eNodeB. modifications for .vcd logging, bugfix in eNB_thread_FH (subframe counter), update of .conf file for new threading parameters. Updates to gtkwave configuration file for new threading.

It creates more problems than it solves.

We replace this approach by a straightforward
synchronous one.

Now in the downlink, at frame f and subframe s
we use HARQ process (f * 10 + s) % 8.
This is similar to uplink scheduling.