METHOD OF TRANSMITTING AND RECEIVING ACKNOWLEDGMENT SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

摘要

A method of receiving an acknowledgement (ACK) signal from at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes transmitting at least one packet via a packet data channel from an access network (AN), receiving at least one ACK signal from the at least one AT using same channelization resources, wherein each AT is assigned a code specific to each AT, and identifying the ACK signal corresponding to the transmitted packet from the received at least one ACK signal.

主权项

1. A method of receiving a plurality of acknowledgement (ACK)/negative acknowledgement (NAK) signals at a base station (BS) in a wireless communication system utilizing an orthogonal frequency division multiplexing (OFDM) scheme, the method comprising:
transmitting, by the BS, a plurality of data packets to a plurality of mobile stations; receiving, by the BS, a plurality of first ACK/NAK signals from the plurality of mobile stations, wherein the plurality of first ACK/NAK signals are spread on a first set of orthogonal frequency tones using a plurality of sequences corresponding to the plurality of mobile stations; receiving, by the BS, a plurality of second ACK/NAK signals from the plurality of mobile stations, wherein the plurality of second ACK/NAK signals are spread on a second set of orthogonal frequency tones, wherein the plurality of second ACK/NAK signals carry the same information as the plurality of first ACK/NAK signals; and determining, by the BS, whether the plurality of data packets are successfully received by the plurality of mobile stations based on the plurality of first ACK/NAK signals and the plurality of second ACK/NAK signals; wherein the first set of orthogonal frequency tones are different from the second set of orthogonal frequency tones over two transmission instants.