nr: improve x2/rrc for ENDC

This commit introduces several enhancements in X2AP and RRC to deal
with ENDC. The main goal is to deal with UE's on/off and with various
errors.

The following work is included:

    - DC prep and DC overall X2 timers
    - X2 messages for UE release and DC timers' timeout

Open problems:

    - what to do when the UE sends an scg Failure? This commit removes
      the UE. And this removal may not be correctly done
    - UE removal in the gNB's PHY layer (a next commit is coming,
      but it is hackish and will need a rework)
This commit is contained in:
Cedric Roux
2020-09-22 11:57:31 +02:00
parent 5372a3478a
commit 4236ff2b3e
103 changed files with 1235 additions and 160 deletions
+17
View File
@@ -173,6 +173,23 @@ rrc_eNB_get_ue_context(
}
//------------------------------------------------------------------------------
struct rrc_eNB_ue_context_s *
rrc_eNB_find_ue_context_from_gnb_rnti(
eNB_RRC_INST *rrc_instance_pP,
int gnb_rnti)
//------------------------------------------------------------------------------
{
struct rrc_eNB_ue_context_s *ue_context_p = NULL;
RB_FOREACH(ue_context_p, rrc_ue_tree_s, &(rrc_instance_pP->rrc_ue_head)) {
if (ue_context_p->ue_context.gnb_rnti == gnb_rnti) {
return ue_context_p;
}
}
return NULL;
}
//------------------------------------------------------------------------------
void rrc_eNB_remove_ue_context(
const protocol_ctxt_t *const ctxt_pP,