| CPC H04W 28/06 (2013.01) [H04L 5/0041 (2013.01); H04W 80/02 (2013.01)] | 8 Claims |
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1. A method in a wireless local area network system, the method comprising:
generating an Extremely High Throughput (EHT) physical protocol data unit (PPDU) including a legacy signal (L-SIG) field, a repeated L-SIG (RL-SIG) field being contiguous to the L-SIG field, a first control signal (SIG) field being contiguous to the RL-SIG field, a second control SIG field being contiguous to the first control SIG field, and a data field,
wherein a length field in the L-SIG field is set to a value satisfying a condition a remainder is zero when the length field is divided by three, wherein the remainder is used to differentiate the EHT PPDU from a High Efficiency (HE) PPDU,
wherein the four extra subcarriers are inserted at indexes of {−28, −27, 27, 28} in the RL-SIG field, and values of the four extra subcarriers are {−1, −1, −1, 1}, respectively,
wherein each symbol of the first control SIG field carries 26-bit information, and the first control SIG field comprises version independent fields including bits related to transmission opportunity (TXOP) and bits related to a Basic Service Set (BSS) Color,
wherein the second control SIG field comprises resource unit (RU) allocation information related to a multiple RU (MRU) in which a first RU is allocated contiguous to a second RU in frequency,
wherein the data field is encoded based on the MRU; and
transmitting the EHT PPDU.
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