A.MTP2 B.MTP3 C.SCCP D.BSSAP
A.Rxlev_min B.MS_Txpwr_Max C.Rxlev_Access_Min D.BS_Txpwr_Max
A.AttachRequest/UL B.AttachRequest/UL C.AttachAccept/DL D.AttachComplete/DL E.AttachComplete/UL