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what is the difference between physical root index and logical root index in LTE?

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what is the difference between physical root index and logical root index in LTE?

posted Jul 12, 2017 by Shyam Singh Pal

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1 Answer

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logical Root sequence index and physical root sequence index in one to one mapping. There are 839 logical root sequence and corresponding physical sequence index

answer Jul 14, 2017 by Jaganathan
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I wonder if changing of physical cell identity (CPI) should have an impact on value of rootSequenceIndex. I couldn't find information about this anywhere, at least nothing that comes to me.

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I know one MCCH channel is associated to one MBSFNArea Configuration and MBSFNAreaConfiguration carries the configuration associated to a particular MBSFNArea. I have no idea of use of SC-MCCH logical channel. Can a cell support both logical channels simultaneously ? If both can exist together in a cell then UE will choose which channel ? Can someone please share his/her thoughts over these queries ? Thanks in advance.

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