Method and apparatus for sending and receiving signaling in wireless local area network

A method applied in a wireless local area network (WLAN), the method comprising:

• receiving, by an apparatus, a physical protocol data unit (PPDU) for a downlink multiple-user transmission, wherein the PPDU includes:
• a legacy preamble, a high efficiency Wi-Fi Signaling Field 1 (HEW-SIG1), a high efficiency Wi-Fi Signaling Field 2 (HEW-SIG2) adjacent to the HEW-SIG1 in the PPDU, and a data portion, and wherein the HEW-SIG1 comprises a HEW-SIG2 modulation and coding scheme (HEW-SIG2 MCS) field, the HEW-SIG2 MCS field indicates a transmission modulation and coding scheme (MCS) used to transmit the HEW-SIG2, the HEW-SIG1 further comprises a frame structure indication field, and the frame structure indication field indicates whether a frame structure of a scheduling transmission is an uplink structure or a downlink structure, and the HEW-SIG2 comprises resource indication information;
• and
• parsing, by the apparatus, the PPDU to obtain the data portion according to the HEW-SIG1 and the HEW-SIG2.