Method for transmitting control and training symbols in multi-user wireless communication system

A communication device of a station, the device comprising:

• a circuitry, wherein the circuitry is configured to:
• cause the station to receive a first short training field;
• cause the station to receive a first long training field;
• cause the station to receive a first signal field;
• cause the station to receive a second signal field;
• cause the station to receive a third signal field using first information in the second signal field, the first information in the second signal field indicating a modulation and coding scheme of the third signal field;
• cause the station to receive a second long training field;
• and
• cause the station to receive a data field.

A communication apparatus, comprising:

• a circuitry, wherein the circuitry is configured to:
• cause the communication apparatus to receive a first short training field;
• cause the communication apparatus to receive a first long training field;
• cause the communication apparatus to receive a first signal field;
• cause the communication apparatus to receive a second signal field;
• cause the communication apparatus to receive a third signal field using first information in the second signal field, the first information in the second signal field indicating a modulation and coding scheme of the third signal field;
• cause the communication apparatus to receive a second long training field;
• and
• cause the communication apparatus to receive a data field.