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Why secondary carrier is not having control channels?

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Why secondary carrier is not having control channels?
posted Jul 11, 2017 by Himani

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1 Answer

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Hi,

secondary carrier is used only for an aggregation , thats why UE is not allowed to send or receive an signaling form secondary CC.

answer Jul 11, 2017 by Jaganathan
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+1 vote

why QPSK modulation scheme is used for all control channels in LTE ?

+1 vote

An UE configured for carrier aggregation, may have different radio channel conditions for primary and secondary cells.
I meant to say, primary cell may have strong signal strength at the same time UE may observed secondary cell(s) not too good.
In this case, does the same modulation and coding schemes used for primary and secondary or may use different coding and modulation schemes for different channels for the same sub frame?

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