Step 1: non-member signals CSG-closed femto If non-member MS is not connected to macro or any other ABS, and AMS can only see a CSG-closed femto MS can only see a CSG-closed femto, so the remedy can be (details in contribution #2596 or its latest version) – Trigger: a disconnected AMS who is a non-member of a CSG-closed femto measures that the CSG-closed femto ABS is the only ABS with a RSSI or CINR higher than the minimum acceptable RSSI or CINR for MS to access a BS, for a period of time T greater than a threshold TH1 – Action: the AMS may request the femto ABS to mitigate the interference by sending an AAI_RNG-REQ message with Ranging Purpose Indication Bit #7 set as 1.
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