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Synchronous hybrid automatic repeat request (HARQ) protocol employing a first information element indicating whether to perform retransmission of an uplink data packet and a second information element indicates modulation and coding scheme (MCS) for the retransmission
Synchronous hybrid automatic repeat request (HARQ) protocol employing a first information element indicating whether to perform retransmission of an uplink data packet and a second information element indicates modulation and coding scheme (MCS) for the retransmission
A base station receives an uplink data packet from a user equipment based on a synchronous hybrid automatic repeat request (HARQ) protocol, and transmits a first information element and a second information element in parallel to the user equipment. The first information element indicates whether to perform a retransmission of the uplink data packet, and the second information element indicates modulation and coding scheme (MCS) for the retransmission. The base station receives the retransmission from the user equipment according to the modulation and coding scheme. The first information element is for example an ACK/NACK feedback message.
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