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Article | REF: TE7374 V1

Operating principles of the LTE radio interface

Author: Xavier LAGRANGE

Publication date: May 10, 2013, Review date: July 3, 2019

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7. MAC layer and HARQ protocol

7.1 Logic channels

The MAC (Medium Access Control) layer provides the possibility of multiplexing different flows without any guarantee of quality of service, but with a frame loss rate likely to be suitable for the least demanding services (of the order of 1% of lost frames). To achieve this, a selective retransmission protocol is used.

  • Transport block

    A transport block can contain any type of data:

    • signage...

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MAC layer and HARQ protocol
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