Multimode fiber is recommended when the CPRI fiber connection between the BBU and RRU is over 150 meters.

• A.True
• B.False

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In the 5G RAN2.0 version, what is the maximum number of 100MHz 64*64 cells supported by a single BBU900?

• A.3
• B.6
• C.18
• D.9

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Regarding the DMRS of the PDSCH, what are the correct descriptions of the following? (Multiple Choice)

• A.It is divided into two types, Type1 and Type2, and the maximum number of ports supported is different
• B.The maximum number of ports supported by Type1 is 8
• C.Divided into pre-DMRS and additional DMRS, pre-DMRS is mainly used in high-speed scenes
• D.The maximum number of ports supported by Type2 is 12

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The engineering state of the factory setting of 5G equipment shipment is ?

• A.Commissioning
• B.Ordinary
• C.New
• D.Expansion

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Considering compatibility, the BBU5900 chassis supports all BBP series single boards for LTE.

• A.False
• B.True

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