HARQ is stop and wait mechanism. It is basically a layer 1 retransmission and controlled by MAC & PHY layer.
Each HARQ entity has some associated HARQ process ID. By considering the RTT of each HARQ transmission, maximum 8 HARQ process has been defined under the 3GPP standard.
1) Uplink HARQ procedure is synchronous and adpative/no adaptive.
2) Downlink HARQ procedure is non-synchronous and adaptive.
Each HARQ entity has some associated HARQ process ID. By considering the RTT of each HARQ transmission, maximum 8 HARQ process has been defined under the 3GPP standard.
1) Uplink HARQ procedure is synchronous and adpative/no adaptive.
2) Downlink HARQ procedure is non-synchronous and adaptive.
No comments:
Post a Comment