SYSTEM AND METHOD FOR COMMUNICATING AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED FRAME FORMAT
FIG10 illustrates additional embodiment tone plans for 80 MHz OFDMA and SU frames
FIG10 illustrates 80 MHz tone plans 1080 for OFDMA frames and SU frames. There are 294 data, pilot, and leftover tones, and 30 DC and edge tones. The tone plans 1080 include the OFDMA tone plan 1006 and the SU tone plan 1008. The tones in the OFDMA tone plan 1006 are sent to or received from multiple STAs. The tones in the SU tone plan 1008 are sent to or received from a single STA. The RUs, DC tones, and edge tones of the OFDMA tone plan 1006 are aligned with the RUs, DC tones, and edge tones of the SU tone plan 1008, respectively.
embodiment
242
pilot regions each carry
1095
edge tones
1080
tone plans
1006
OFDMA tone plan
1092
tones
1000
RUs
1008
SU tone plan
12
includes
1004
edge tones
11
other edge includes other edge are
1082
DC tones
18
tones are distributed over
1090
RUs
1098
RU
1089
tones
1093
edge leftover tones
7
contains includes
1088
tones
1096
DC tones
1094
edge tones
['1. A method implementing orthogonal frequency division multiple access, OFDMA, communication according to Institute of Electrical and Electronics Engineers, IEEE, 802.11 ax standard comprising: transmitting or receiving a downlink or uplink frame; wherein the IEEE 802.1lax standard adopts one or more tone plans, each of which comprises a first set of data and pilot tones, a second set of data and pilot tones, and a direct current,DC, region positioned between the first set of data and pilot tones and the second set of data and pilot tones, wherein the DC region consists of five DC tones; and, the tone plan further comprises a first edge region, and a second edge region, the first set of data and pilot tones positioned between the first edge region and the DC region, and second set of data and pilot tones positioned between the DC region and the second edge region, wherein the first edge region includes 12 guard tones and the second edge region include 11 guard tones; wherein the tone plan is a tone plan of 40MHz channel; and wherein the first set of data and pilot tones consists of nine 26-tone resource units, RUs, and the second set of data and pilot tones consists of nine 26-tone RUs; or the first set of data and pilot tones consists of one 242-tone RUs and the second set of data and pilot tones consists of one 242-tone RUs.']