What are the channel coding scheme and coding rate used by the UL-SCH, the DL-SCH?

• A.Turbo coding , 1/3
• B.Tail biting convolutional coding , 1/2
• C.Turbo coding , 1/2
• D.Tail biting convolutional coding , 1/3

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Regarding the re-election of the community, which of the following statements is wrong?

• A.Same frequency neighbors have the same priority
• B.The priority of the inter-frequency neighboring area must be different from the serving cell
• C.The larger the neighboring cell offset value CellQoffset, the harder it is to reselect the cell.
• D.The serving cell and the inter-frequency system neighboring cell reselection priority are sent to the UE through the system message in the cell broadcast.

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In the handover failure analysis process, if the eNB does not receive the measurement report, which of the following should be transferred to analyze?

• A.Uu interface problem analysis
• B.Uu/X2/S1 interface problem analysis
• C.Find MME side signaling
• D.Analysis of X2/S1 interface problems

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Which is the correct description of the ping-pong switching problem?

• A.Reduce the coverage of the cell for overlapping coverage problems and reduce the coverage of overlapping coverage areas in the adjacent area
• B.When there are ping-pong problems in all neighboring areas, reduce the 0cs parameter 1-3dB
• C.When there are ping-pong problems in all neighboring areas, the handover decision timer is not lower than 640ms.
• D.When there are ping-pong problems in all neighboring areas, reduce the inter- frequency switching threshold 1-3dB

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What is the role of IMRN in VOLTE?

• A.Anchored Routing for CS->IMS Calls
• B.Routing for IMS->CS
• C.Used to prevent repeated anchoring
• D.Used for IMS->IMS intra-domain call routing

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