Which of the MIMO system gains listed below are obtained using the relative independence of spatial channel fading? (Multiple choice)

• A.Diversity gain
• B.Array gain
• C.Interference suppression gain
• D.Spatial multiplexing gain

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What information does the UE regain after a successful service request?

• A.Reconstructed SGs
• B.Updated TAL
• C.Authentication code
• D.Rebuilt S1-C

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The test found a rate, but the rate is much lower than the theoretical value, which is the reason for the impossible?

• A.PCIMod3 interference
• B.The user walks around
• C.Only uniflow in the downlink direction
• D.the order of antenna and RRU feeder is wrong

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Which of the description of the drop rate indicator in the LTE drive test indicator is incorrect?

• A.Dropping means that when the mobile phone does not send Disconnect signaling or does not receive the Disconnect/Release signaling, the mobile phone returns to the idle state, and it is regarded as a dropped call.
• B.Drop refers to: Abnormal interruption of data transmission during normal data transmission of the terminal, including RRC connection abnormal interruption: or data rate is reduced to 0 for 5 seconds.
• C.Drop rate = number of dropped lines/successful completion of connection establishment
• D.The drop rate refers to the probability of a business interruption in the business process, that is, the ratio of the number of abnormal interruptions to the total number of business operations.

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Which of the following modules does the AAU function module include? (Multiple Choice)

• A.CU
• B.RU
• C.Power Module
• D.AU

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