| 摘要 |
In a method for generating an orthogonal frequency division multiplexing (OFDM) physical layer (PHY) data unit, a signal field of the data unit is generated. The signal field includes a first subfield to indicate a configuration used for transmission of the data unit and a second subfield to indicate information regarding one of a plurality of modes for the data unit. When the configuration is a first configuration, the second subfield indicates information regarding a first mode of the plurality of modes. When the configuration is a second configuration, the second subfield indicates information regarding a second mode of the plurality of modes. The data unit is generated to include a preamble and a data portion. The signal field is included in the preamble. The data portion is generated according to one of i) the information regarding the first mode or ii) the information regarding the second mode. |
