6 Commits (e2b8a80f87b38e36e2ef9f7332f3ff6fc07ed5cd)

Author SHA1 Message Date
Ismael Gomez d972fb368c
Some LGTM fixes (#3564)
* Fix LGTM issues

* ue: add logging to switch on function

* Fix new LGTM issues
3 years ago
Ismael Gomez 1c77998df5 Stop PDCP for data bearers before initiating HO 3 years ago
Andre Puschmann 483a216bd5 ue,stack: refactor handling of radio bearears in UE stack
this is a rather large commit that is hard to split because
it touches quite a few components.

It's a preparation patch for adding NR split bearers in the next
step.

We realized that managing RLC and PDCP bearers for both NR and LTE
in the same entity doesn't work. This is because we use the LCID
as a key for all accesses. With NR dual connectivity however we
can have the same LCID active at the same time for both LTE and NR
carriers.

The patch solves that by creating a dedicated NR instance for RLC/PDCP
in the stack. But then the question arises for UL traffic on, e.g. LCID 4
what PDCP instance the GW should use for pushing SDUs. It doesnt' know
that. And in fact it doesn't need to. It just needs to know EPS
bearer IDs. So the next change was to remove the knowledge of what
LCIDs are from the GW. Make is agnostic and only work on EPS bearer IDs.

The handling and mapping between EPS bearer IDs and LCIDs for LTE
or NR (mainly PDCP for pushing data) is done in the Stack because
it has access to both.

The NAS also has a EPS bearer map but only knows about default and
dedicated bearers. It doesn't know on which logical channels they
are transmitted.
4 years ago
Andre Puschmann 598594c51a all: bunch of pass by const& changes suggested by LGTM 4 years ago
David Rupprecht 56e947bf27 Added functionality for releasing a NR bearer 4 years ago
Codebot 4523ee6087 rename srsLTE to srsRAN 4 years ago