Patent ID: 8432855
Filing Date: 2013-04-30
Classification: H04L,H04W

Abstract:
1. A method for transmitting data using a hybrid automatic repeat request (HARQ), the method comprising: receiving scheduling information from a base station, the scheduling information comprising information regarding a first radio resource; transmitting data to the base station by using the first radio resource; receiving a scheduling change indicator which indicates whether the first radio resource is reused or not from the base station through a physical uplink scheduling indicator channel (PUSICH), the PUSICH being configured with bits corresponding to a number of user equipments (UEs) processed in one transmission time interval (TTI), each UE being identified by performing bit-shifting on a demodulation reference signal (DMRS) index; and retransmitting the data or transmitting new data to the base station by reusing the first radio resource if the scheduling change indicator indicates that the first radio resource is reused, or transmitting the new data to the base station by using a second radio resource if the scheduling change indicator indicates that the first radio resource is not reused, wherein the scheduling change indicator is control information different from the scheduling information.