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LTE: What is the meaning of Re-Ordering Window ?

+7 votes
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LTE: What is the meaning of Re-Ordering Window ?
posted Nov 24, 2013 by Vikram Singh

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2 Answers

+3 votes

Reordering window will be generally half of the Sequence Number (SN) Space

RLC in AM mode with SN Size = 10Bit, Reordering Windownsize is 512

RLC in UM mode with SN Size = 10Bit, Reordering Windownsize is 512

RLC in UM mode with SN Size = 5Bit, Reordering Windownsize is 16

PDCP with SN Size = 12Bit, Reordering Windownsize is 2048

PDCP with SN Size = 7Bit, Reordering Windownsize is 64

PDCP with SN Size = 5Bit, Reordering Windownsize is 16

answer Nov 25, 2013 by Giri Prasad
Why reordering window size is just half of the PDCP SN space ?
How to decide,  when to use UM_10 or UM_5 mode?
0 votes

check 3gpp 36.323.

answer May 21, 2017 by Eray Madrid
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