1. If eNodeB uses the 1588V2 clock, in the command "SET CLKMODE", the parameter of “Clock Work Mode" is set to "manual", so the parameter of "the set reference clock source" should be set as which of the following selection?

2. Uu interface protocol stack RLC layer, ARQ entity is only be configured under AM mode.

3. In the LTE system, the synchronization signal occupies a fixed 6 RBs bandwidth.

4. Which of the following application layer protocol is used by the interface S6a between MME and HSS?

5. Which of the following command is used to activate LICENSE?

6. Which of the following event does indicate that the serving cell's signal is above a certain threshold?

7. About AAU3215, which of the following statement is correct? (Multiple choice)

8. Which of the following board does belong to the BBU transmission system? (Multiple choice)

9. In summary collection table, which the following parameters need to negotiate with MME/SGW side?

10. Which of the following channels cannot carry RRC messages? (Multiple choice)

11. Which of the following interface's signaling can eNodeB's signaling tracking function track? (Multiple choice)

12. What is the maximum number of bits can LTE Turbo encoder handle?

13. Which interface from the LMT client to the eNodeB is required to maintain the eNodeB at the local end? (The board is a UMPT)

14. What kind of network element are used to allocate and schedule for air interface resource?

15. If you need to configure IPsec, which of the following should the parameter "port type" in the command "ADD DEVIP" be set to?