US Patent No. 10,716,135

DATA TRANSMISSION METHOD AND APPARATUS


Patent No. 10,716,135
Issue Date July 14, 2020
Title Data Transmission Method And Apparatus
Inventorship Le Liu, Shenzhen (CN)
Zhou Lan, Shenzhen (CN)
Assignee HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)

Claim of US Patent No. 10,716,135

1. A data transmission method by a station (STA), for transmitting an uplink Orthogonal Frequency Division Multiple Access (OFDMA) physical layer convergence protocol data unit (PPDU), the method comprising:in a channel bandwidth having a plurality of 20 MHz channels, configuring an uplink OFDMA PPDU that comprises a data portion and a common signaling portion, wherein the common signaling portion includes a legacy preamble and an HE-SIG-A, wherein a frequency resource unit (RU) is allocated for the data portion, and the RU is located in one 20 MHz channel of the plurality of 20 MHz channels, wherein the RU is smaller than 20 MHz, or the RU is located in multiple 20 MHz channels of the plurality of 20 MHz channels, wherein the multiple 20 MHz channels is smaller than the channel bandwidth, and the RU is smaller than the multiple 20 MHz channels; and
sending, by the STA, the legacy preamble and the HE-SIG-A only on the one or multiple 20 MHz channels where the RU is located; and
sending, by the STA, the data portion in the uplink OFDMA PPDU only on the RU.