Patent ID: 9544102
Date: 2017-01-10
CPC Classifications: H04L,H04W

Claim:
1. A signaling method for use in a wireless communication system that supports flexible allocation of time division duplex (TDD) uplink-downlink (UL-DL) configurations and in which hybrid automatic repeat request acknowledgement (HARQ-ACK) bundling is used, the method comprising: allocating one of a plurality of TDD UL-DL configurations for use on a given radio frame, wherein for a given TDD UL-DL configuration: an UL subframe carries HARQ-ACK feedback for one or more DL and/or special subframes in the given radio frame and/or a previous radio frame, a DL association set comprises the one or more DL and/or special subframes for which HARQ-ACK feedback is carried in the said UL subframe; and an UL grant for the said UL subframe is sent on one of the DL and/or special subframes in the DL association set; and the method also comprising scheduling (enhanced) physical downlink control channel (PDCCH/EPDCCH) transmissions indicating DL semi-persistent scheduling (SPS) release and/or physical downlink shared channel (PDSCH) transmissions with corresponding PDCCH/EPDCCH only on DL and/or special subframes in the DL association set which are not after the subframe carrying the UL grant.