this patch adds a basic UL HARQ entity for NR.
The patch also updates some interfaces between MAC/RA/HARQ,
i.e. get_temp_crnti().
It also adds a Msg3 unit test.
Previously since a char* can have any length, this was managed by FMT by converting it into a std::string.
Now we store it into a configurable size node that can store a fixed size string, otherwise it falls back to std::string.
the current value of 256 limits the number of PDCP SDUs that can be
notified from RLC. The limit is quickly hit when too many SDUs
are in flight. This can cause unwanted log entries and weird PDCP
behaviour.
the patch increases the value to 1024, which still can be too few if
many smaller SDUs are traveling.
The patch also set the log level to warning to quicker spot
misconfigs in logs.
Fixes#2616
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)
The window elements are not being correctly cleaned up when clear() is called
or when overwritten by newer SN. Furthermore, the window count member is not being
correctly updated when the insertion of a newer SN overwrites the previous one.
I used the circular_map container to avoid this sort of bugs
Main changes:
- addition of pool utilities
- The node size/alignment and batch allocation threshold are now runtime arguments
- object pool and memory pool are not anymore based on the same class.
The object pool cannot use intrusive free list because it would overwrite the object
memory