Multiplexing schemes for ofdma

A method comprising:

• for nominal operating conditions, transmitting an ACK-NAK-echo bitmap or any type of ACK/NAK echo echoing the NAK(s) or ACK(s) sent by one or more wireless stations;
• in some instances, transmitting the ACK-NAK-echo bitmap with an ACK to echo a NAK transmitted by the wireless station, or with an NAK to echo an ACK transmitted by the wireless station for the purpose of signalling something to the wireless station.

A method of performing resource assignment comprising:

• sending a bitmap (or other signalling) containing a respective location for each of a plurality of wireless stations, with each wireless station's relative position in the bitmap (or other signalling) being associated with some OFDM resource allocation;
• wherein a value at a position in the bitmap (or other signalling), indicates whether or not a resource has been assigned to the receiver associated with that bitmap (or other signalling) position.

47-83. (canceled)

A method comprising:

• transmitting frames using OFDM, each frame occupying a plurality of OFDM symbols;
• signalling resource allocation to multiple groups of wireless stations using multiple bitmaps (or other signalling);
• re-assigning unused resources available for at least one of the bitmap (or other signalling)s to another of the bitmaps (or other signalling).

94-97. (canceled)

A method comprising:

• transmitting frames using OFDM, each frame occupying a plurality of OFDM symbols;
• sending a first bitmap (or other signalling) to indicate which wireless stations are being allocated an OFDM resource during a given scheduling period;
• sending a second bitmap (or other signalling) to indicate the size of resources and/or MCS's of wireless stations assigned by the first bitmap (or other signalling).

A method comprising:

• transmitting frames using OFDM, each frame occupying a plurality of OFDM symbols;
• transmitting a respective bitmap (or other signalling) for each of a plurality of HARQ interlaces.

118-167. (canceled)

A method of performing resource assignment wherein a persistent allocation is used for a HARQ first transmission for a wireless station.

A method of performing resource assignment wherein a persistent allocation is used for one or more HARQ transmissions for a wireless station.