Patent ID: 7853852
Filing Date: 2010-12-14
Classification: H04L

Abstract:
1. A method for supporting a hybrid auto retransmission request (HARQ) at a base station in an orthogonal frequency division multiplexing access system, the method comprising: transmitting a MAP message to a mobile station, the MAP message comprising first location information which indicates a location of a downlink data region on which a downlink data burst is to be transmitted and second location information which is used to identify a location of an ACK/NACK signal slot on which an ACK or NACK signal is to be received as a response to the downlink data burst, the ACK/NACK signal slot is located within an ACK/NACK region which is an uplink region allocated by the base station; and receiving the ACK or NACK signal from the mobile station on the ACK/NACK signal slot identified by the second location information as the response to the downlink data burst transmitted on the downlink data region indicated by the first location information.