第2题
A.SRNS Context Request
B.Location Update Request
C.Update PDP Context Request
D.SGSN Context Request
第3题
A.Handover Request
B.Handover Required
C.Handover Request Acknowledge
D.SNStatus Transfer
第5题
A.request system software add filename
B.load upgrade filename
C.load software filename
D.request system load filename
第6题
A.S1 ERAB Setup Request
B.S1 Initial Context Setup Request
C.RRCConnectionReconfiguration
D.S1 ERAB Release Command