Patent ID: 8767528
Filing Date: 2014-07-01
Classification: H04L

Abstract:
1. A method of receiving a reception acknowledgment for hybrid automatic repeat request (HARQ) in a wireless communication system, the method comprising: receiving, by a user equipment, from a base station, an uplink resource allocation including information regarding a plurality of allocated resource blocks (RBs) in an uplink subframe; transmitting, by the user equipment, an uplink transport block through a physical uplink shared channel (PUSCH) by using the plurality of the allocated RBs in the uplink subframe; and receiving, by the user equipment, a positive-acknowledgment (ACK)/negative-acknowledgement (NACK) signal through a physical hybrid-ARQ indicator channel (PHICH) from the base station, wherein a downlink resource used for the PHICH is identified by a lowest index among indices of the plurality of the allocated RBs in the uplink subframe, and wherein when the plurality of the allocated RBs in the uplink subframe include basic RBs and additional RBs extending a bandwidth, indices of the additional RBs are overlapped with indices of some basic RBs to link the additional RBs to the same downlink resource used for the PHICH.