5G NSA模式在RRC Connection Reconfiguration message中， SgNB 提供了一组运营商可配置参数，用来检测无线链路失败，比如:
A.NRBTS: T310, NRBTS: N310 , NRBTS: N311
B.NRCELL: preambleTransMax
C.NRBTS: tRLFindForDU
D.NRBTS: maxRetxThreshold (rlcProf4)
正确答案是ABD