Huawei Technologies Co., Limited

Leonid Epstein

Shimon Shilo

Genadiy Tsodik

Oded Redlich

Jian Yu

Ming Gan

Xun Yang

Yunbo Li

Tao Wu

Yanchun Li

Ying Wang

A signal field indication method and apparatus are provided. The method includes: generating, by a transmit end, a PPDU, where the PPDU includes a SIG-A indication field, and the SIG-A indication field includes at least one of a field used to indicate a number of SIG-A information symbols and a field used to indicate a SIG-A information bandwidth; and sending, by the transmit end, the PPDU. According to the method provided in this application, the transmit end may indicate different numbers of SIG-A information symbols and/or different SIG-A information bandwidths.

Signal field indication method and apparatus

A radio physical layer protocol data unit (PPDU) sending method includes: obtaining, a radio physical layer protocol data unit (PPDU), wherein the PPDU includes a high efficiency-signal field A (HE-SIG-A) and a high efficiency-signal field B (HE-SIG-B), the HE-SIG-A includes a field indicating a quantity of orthogonal frequency division multiplexing (OFDM) symbols in the HE-SIG-B, and wherein a value of the field indicates one of the following: that the quantity of OFDM symbols included in the HE-SIG-B is greater than or equal to 16, or the quantity of OFDM symbols included in the HE-SIG-B; and sending the PPDU.

Downlink PPDU sending method and apparatus, and downlink PPDU receiving method and apparatus

A channel access method and apparatus, where the method includes: determining, by a station, backoff duration based on a current first contention window; determining random padding duration based on a current second contention window when the backoff duration is reached; sending, on a channel, padding data whose duration is the random padding duration; detecting a state of the channel after the padding data is sent; and sending data on the channel if the state of the channel is an idle state.

Channel access method and apparatus

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Hod Hasharon, Israel

Leonid Epstein