Skip to content

Fix handover buffering

Manuel Requena requested to merge mrequena/ns-3-dev:fix-handover-buffering into master

Target eNB starts sending data (coming from the source eNB through the X2 interface) too soon to the UE and this data generates collisions with the RRC connection reconfiguration from the source eNB. The target eNB should buffer the packets coming from the X2 until he receives the RRC connection reconfiguration complete.

Currently, the HO procedure takes around 55 ms due to the collisions but with the patch it takes 37 ms. Moreover, depending on what data the user sends, some packets may be lost during the HO procedure and the lte-x2-handover test may fail for different streams.

Merge request reports