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483a216bd5
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 | |
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| .. | ||
| hdr | 4 years ago | |
| src | 4 years ago | |
| test | 4 years ago | |
| CMakeLists.txt | 4 years ago | |
| drb.conf.example | 4 years ago | |
| enb.conf.example | 4 years ago | |
| rr.conf.example | 4 years ago | |
| sib.conf.example | 4 years ago | |
| sib.conf.mbsfn.example | 4 years ago | |