Patent ID: 8448036

Claim:
A method for detecting a hybrid automatic repeat request (HARQ) message, comprising: setting a round trip time (RTT) based on a time delay associated with receiving a HARQ message; transmitting a plurality of repeated acknowledgement (ACK)/negative acknowledgement (NACK) sub-frames in response to receiving the HARQ message; receiving a request to update the predetermined number of ACK/NACK sub-frames; and updating the predetermined number of ACK/NACK sub-frames based on radio conditions, wherein the RTT is set equal to a predefined time in addition to a total time delay associated with transmitting the plurality of repeated ACK/NACK sub-frames, wherein the plurality of repeated ACK/NACK sub-frames is equal to a predetermined number of ACK/NACK sub-frames to be transmitted in response to each received HARQ message.