A.External interference of the main set or diversity antenna of the radio unit

B.RF unit hardware failure

C.CPRI interface failure

D.The primary or diversity receive channel of the RF unit is faulty

A.False

B.True

A.True

B.False

A.UE

B.S-GW

C.eNodeB

D.P-GW

A.The new start needs to apply for a new license, if the upgrade has no new features, cannot apply for license

B.IP address which M2000 required is provided by the customer, and need to apply to the customers according to the requirement of IP address in "Commissioning Guide" and the "Installation Guide" before start

C.If the customer provides the NTP server, the M2000 and network elements do not need to configure the time and time zone

D."Northbound Interface Development Guide" is an internal document, which prohibited providing to customers.