Apparatus and method for extended signal field

A wireless communication method by a first apparatus, the wireless communication method comprising:

• receiving a first Physical Layer Protocol Data Unit (PPDU) from a second apparatus;
• extracting a first field from a first signal field included in the first PPDU;
• extracting a first subfield from a second signal field included in the first PPDU;
• and
• identifying a number of symbols in the second signal field based on a value of the first field and a value of the first subfield, wherein the identifying the number of symbols in the second signal field comprises:
• concatenating a plurality of bits of the first field to at least one bit of the first subfield;
• and
• identifying the number of symbols in the second signal field based on concatenated bits.

A wireless communication method by a first apparatus, the wireless communication method comprising:

• receiving a first Physical Layer Protocol Data Unit (PPDU) from a second apparatus;
• extracting a first field, a second field, and a third field from a first signal field included in the first PPDU;
• identifying a mode of the first PPDU based on a value of the first field;
• identifying a puncturing pattern based on a value of the second field;
• and
• identifying a number of symbols in a second signal field included in the first PPDU,
• wherein the identifying the number of symbols in the second signal field comprises identifying the number of symbols in the second signal field based on the third field and at least one bit of the second field when the identified mode is a first mode.