What is the maximum number of UBBPwfl boards supported by the BBU5900?

• A.5
• B.3
• C.2
• D.1

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Regarding the NR physical layer processing, which of the following description is wrong?

• A.The maximum number of layers is 8, corresponding to 2 code words
• B.The number of antenna ports must be equal to the number of layers
• C.Uplink can also support multi-layer data, the maximum layer is 4
• D.The number of antenna ports can be greater than the number of layers

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Which of the following two cells has a relatively large PBCH interference?

• A.PCI0 and PCI3
• B.PCI0 and PCI4
• C.PCI0 and PCI2
• D.PCI0 and PCI1

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gNodeB configures the "return primary path flag" parameter in the SCTP template to indicate whether the primary path can be switched back when the established SCIP primary path fails.

• A.True
• B.False

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In the ADD GNBOPERATOR configuration command, which of the following configuration options can NrNetworkingOption have?

• A.NSA
• B.None
• C.ON-NSA
• D.SA

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