Method and MME/HeNB GW for performing a handover to a CSG target HeNB in a wireless communication system

摘要

Methods and apparatuses for verifying CSG ID and the cell access mode of a HeNB to reduce and/or avoid affecting the operator's network due to the attack from HeNB, and ensures the safety of the users who have accessed the network. In particular, in a S1 handover context to a target HeNB, a HO REQUIRED message is transmitted from a source eNB to a MME (or HeNB GW). The MME (or HeNB GW) carries out access control, i.e. CSG subscription check, and additionally a verification of the CSG ID and the cell access mode of the HeNB; this is carried out before sending the HO COMMAND message back to the source eNB, in a first embodiment upon reception of the HO REQUIRED message from the source eNB and in a second embodiment upon reception of the HO REQUEST ACKNOWLEDGE message from the target eNB.