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Why UL alone transmission is not possible in secondary cell?

+1 vote
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Why UL alone transmission is not possible in secondary cell?
posted Jun 15, 2017 by Sakshi Rai

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+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?

0 votes

If my understaing is correct then in case of carrier aggregation(CA), an UE can connect to multiple cells. One of the cell is known as primary cell while other cells are known as secondary cells. Primary cell physical layer failure is detected based on the receiving N310 consecutive "out of sync". Is the same case applicable for secondary cells as well ?

0 votes

Do anyone implemented UL carrier aggregation?Is it possible?

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