Multiplexing schemes for OFDMA

A wireless station, comprising:

• one or more antennas for performing wireless communication;
• processing hardware coupled to the one or more antennas, wherein the processing hardware is configured to:
• allow a maximum number of HARQ transmissions for a first packet, wherein the maximum number is not an integer multiple of a number of interlace offsets;
• recover from possible feedback errors when a negative acknowledgement (NAK) is mistakenly received by a base station for a positive acknowledgement (ACK) or when an ACK is mistakenly received by a base station for a NAK;
• and
• determine that a second packet is being transmitted instead of the first packet based on the wireless station receiving more retransmissions for the first packet than is allowed.

A method comprising:

• failing, by a wireless station, to successfully receive and decode a first packet a plurality of times;
• sending, by the wireless station, a corresponding number of NAKs in response to failing to successfully receive and decode the first packet, wherein a last NAK of the number of NAKs is mistakenly received as an ACK;
• failing, by the wireless station, to successfully receive and decode the first packet after the last NAK is mistakenly received as an ACK, wherein a second packet was transmitted instead of the first packet based on the last NAK being mistakenly received as an ACK;
• sending, by the wireless station, another NAK in response to failing to successfully receive and decode the first packet after the last NAK is mistakenly received as an ACK;
• determining, by the wireless station, that a second packet is being transmitted instead of the first packet based on the wireless station receiving more retransmissions for the first packet than is allowed;
• and
• attempting, by the wireless station, to recover the second packet based on said determining that the second packet is being transmitted instead of the first packet.

A wireless station, comprising:

• one or more antennas for performing wireless communication;
• processing hardware coupled to the one or more antennas, wherein the processing hardware is configured to:
• fail to successfully receive and decode a first packet a plurality of times;
• transmit a corresponding number of NAKs in response to failing to successfully receive and decode the first packet, wherein a last NAK of the number of NAKs is mistakenly received as an ACK;
• fail to successfully receive and decode the first packet after the last NAK is mistakenly received as an ACK, wherein a second packet was transmitted instead of the first packet based on the last NAK being mistakenly received as an ACK;
• send another NAK in response to failing to successfully receive and decode the first packet after the last NAK is mistakenly received as an ACK;
• determine that a second packet is being transmitted instead of the first packet based on the wireless station receiving more retransmissions for the first packet than is allowed;
• and
• attempt to recover the second packet based on said determining that the second packet is being transmitted instead of the first packet.