30. Summarize PDU which has started in the previous TC packet First PDU which starts in this TC packet Second PDU which starts in this TC packet SDU 1 SDU 2 SDU 3 SDU 4 PDU 1 PDU 2 PDU 3 NO fragmentation & NO packing Packing Fragmentation MAC SDUs MAC PDUs P FEC 1 FEC 2 FEC 3 Preamble TC PDUs BURST FEC encoding
31.
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37. Stop and Wait retransmission Transmitting Data 1 3 2 3 Time Received Data 1 2 3 Time ACK ACK NAK Output Data 1 2 3 Time Error ACK: Acknowledge NAK: Negative ACK