Patent ID: 9473232
Filing Date: 2016-10-18
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method for transmitting and receiving data, the method performed by a relay node and comprising: receiving, by the relay node from a base station, a downlink data in a subframe n−k, wherein the subframe n−k is configured as a multicast broadcast single frequency network (MBSFN) subframe by the relay node; and transmitting, by the relay node to the base station, in response to receiving the downlink data in the subframe n−k, an acknowledgement (ACK)/negative acknowledgement (NACK) in an uplink subframe n, wherein n is an index number of the uplink subframe for transmitting the ACK/NACK, wherein a value of n is associated with a parameter indicating a subframe configuration related with at least one hybrid automatic repeat request (HARQ) process between the relay node and the base station, and wherein the value of k is equal to or greater than 4.