CPC H04L 27/2647 (2013.01) [H04L 27/2602 (2013.01); H04L 27/2603 (2021.01); H04L 27/2613 (2013.01)] | 3 Claims |
1. A communication apparatus, comprising:
circuitry, which, in operation, generates a high efficiency (HE) physical protocol data unit (PPDU) containing a first orthogonal frequency division multiplexing (OFDM) symbol in a first HE PPDU format or in a second HE PPDU format,
wherein presence of a high efficiency signal field B (HE-SIG-B) depends on a second OFDM symbol following the first OFDM symbol, the second OFDM symbol having same data bits as the first OFDM symbol of the HE PPDU in the first HE PPDU format, and
wherein a first modulation mapping used for the first OFDM symbol is different from a second modulation mapping used for the second OFDM symbol; and
a transmitter, which, in operation, transmits the generated HE PPDU.
|