Patent ID: 9014063
Filing Date: 2015-04-21
Classification: H04L

Abstract:
1. A method for reporting hybrid automatic repeat request acknowledgement (HARQ-ACK) applicable to a time-division duplex (TDD) wireless communication system, comprising: receiving downlink information from multiple serving cells of a base station of the TDD wireless communication system, wherein the multiple serving cells use multiple uplink-downlink configurations; calculating a report number of each of the multiple serving cells, wherein the report number is a number of downlink (DL) subframes of the corresponding serving cell whose acknowledgements (HARQ-ACKs) have to be reported, and the report number of at least one of the serving cells is determined according to a downlink (DL) association set of an uplink (UL) subframe specified by the base station in the serving cell; and providing report information to the base station in the UL subframe of one of the multiple serving cells specified by the base station, wherein the report information comprises the HARQ-ACKs that have to be reported for each of the serving cells, wherein the report number of the at least one of the serving cells is determined according to the DL association set corresponding to different UL-DL configurations of the serving cell of the UL subframe specified by the base station in the serving cell, except when the at least one of the serving cells is the one of the serving cells specified by the base station.