Notification of the break of an SCTP association between an X2 Routing Proxy and an eNB

摘要

The application relates to the problem that when an HeNB switches off (HeNB1-3) while connected via a proxy (PR) as mentioned by Release 11 of 3GPP TR 37.803 to a peer X2AP entity, the X2AP entity in the HeNB can not inform its peer (eNB1) that it is no longer reachable. The problem is solved in that when the proxy detects the disconnection of the SCTP connection (SCTP1-3) between the HeNB and itself, it transmits an X2AP STOP message to the eNB (eNB1), whereby this message indicates the end of the SCTP connection (SCTP1-3) and identifies the HeNB.