the created RLC PDU was too large to fit inside the MAC grant
because only the header room for the short L field was used.
The patch determines the correct size before passing the opportunity to RLC.
It also improves logging in error case by using the MAC logger instead of
stderr/stdout when error occurs.
building on the previous refactor this patch now adds support
for peridoic BSR reporting (using short BSR). It furthermore does
the following changes:
* add BSR packing
* add proc_bsr_nr unit test
* move mac_nr test code into test folder under src (needs to be done with other test code too)
* refactor some common methods to mac_common.cc
* add common mux_base class
* move UL PDU generation to mux class
* add logical channel registration to MAC, MUX, BSR
* add initial proc BSR
* add basic MAC NR test
* rework MAC interfaces
Francisco
Andre Puschmann
faluco
Xavier Arteaga
Codebot