Prior to R10, only QPSK, 16QAM, and 64QAM modulation modes were supported. The R12 protocol supports downlink 256QAM.

• A.False
• B.True

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Which of the following network elements can generate STN-SR? (Multiple choice)

• A.ATCF
• B.AS
• C.MME
• D.HSS

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PDCCH/ePDCCH is used to transmit DCI (Downlink Control Information). Which of the following information does the DCI include?

• A.Scheduling strategy
• B.Uplink authorization
• C.Power Control Command
• D.Downlink authorization

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Regarding the LTE random access preamble format, which of the following statements are correct? (Multiple choice)

• A.Random access preamble format is randomly selected by the UE
• B.The choice of the random-access preamble format is mainly affected by the coverage radius of the cell.
• C.The choice of random-access preamble format is mainly affected by multipath environment
• D.The random-access preamble format is notified by the eNodeB to the UE through the SIB.

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Which of the following messages contains UE history information?

• A.Path Switch Req
• B.SN Status Transfer
• C.Handover Request
• D.RRC Connection Reconfiguration

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