Patent ID: 8707119

Claim:
A method of receiving DL (downlink) HARQ (hybrid automatic retransmission request) feedback at a mobile station using FDD (frequency division duplex) frame, the method comprising: receiving each UL Assignment A-MAP IE (uplink assignment information element) via each DL subframe of a first frame from a base station; transmitting UL data corresponding to the received each UL Assignment A-MAP IE via each UL subframe after elapse of a preset processing time necessary for the mobile station process the UL data transmission from the each DL subframe used in receiving the each UL Assignment A-MAP IE; and receiving the DL HARQ feedback for the each UL data from the base station via each DL subframe having the same index of the each DL subframe used in transmitting the each UL Assignment A-MAP IE in a third frame, wherein the frame comprises 5 subframes, 6 subframes or 7 subframes.