Patent ID: 8331218

Claim:
A method of allocating a radio resource in a wireless communication system utilizing orthogonal frequency division multiplexing (OFDM), the method comprising: receiving in a mobile station a radio resource allocation map from a base station, wherein the radio resource allocation map comprises at least one of information elements (IEs) for controlling feedback transmission on an uplink channel, wherein the uplink channel on which the feedback is transmitted is a primary fast feedback channel if the uplink channel comprises six OFDM tiles of a first type OFDM tile, and wherein the uplink channel is a secondary fast feedback channel if the uplink channel comprises six OFDM tiles of a second type OFDM tile, wherein the primary fast feedback channel is associated with representing n-bit data payload, and the secondary fast feedback channel is associated with representing an m-bit data payload; and transmitting the feedback on the primary fast feedback channel or the secondary fast feedback channel from the mobile station to the base station, wherein the first type OFDM tile comprises: Subcarrier 0 Subcarrier 1 Subcarrier 2 Subcarrier 3 Symbol 0 NULL M n,8m M n,8m+1 NULL Symbol 1 M n,8m+2 M n,8m+3 M n,8m+4 M n,8m+5 Symbol 2 NULL M n,8m+6 M n,8m+7 NULL and wherein the second type OFDM tile comprises: Subcarrier 0 Subcarrier 1 Subcarrier 2 Subcarrier 3 Symbol 0 M n,4m NULL NULL M n,4m+1 Symbol 1 NULL NULL NULL NULL Symbol 2 M n,4m+2 NULL NULL M n,4m+3