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LTE: Why HARQ re-ordering is required in RLC UM mode ???

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LTE: Why HARQ re-ordering is required in RLC UM mode ???
posted Apr 3, 2017 by Himani

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1 Answer

+1 vote

Hi hinmani ,

HARQ Reordering is required because sometimes the chunks transmitted earlier from transmitter may arrive late at the receiver due to HARQ re-transmission. In this case you have to reorder the incoming chunks into proper order for reassembly.

Note: HARQ re-ordering is required in all RLC mode , because even in RLC UM mode MAC will use HARQ to process.

answer Apr 6, 2017 by Jaganathan
thank you
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