Patent ID: 9331817
Filing Date: 2016-05-03
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A retransmission method comprising: receiving, from a relay node, a frame including a plurality of subframes on which a plurality of HARQ processes are mapped, a HARQ process of the plurality of HARQ processes being a processing unit of Hybrid Automatic Repeat Request (HARQ), and the received frame being configured at the relay node by specifying, in a frame for communication, a plurality of subframes available for uplink data transmission from the relay node to a network node, selecting a number of HARQ processes based on the specified plurality of subframes for uplink transmission, and mapping the selected number of HARQ processes sequentially onto the specified plurality of subframes, wherein the number of HARQ processes is determined based on a parameter which is transmitted from the network node in a backhaul subframe configuration; and retransmitting data to the relay node according to the HARQ.