Patent ID: 11916710
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A data transmission apparatus, for transmitting an uplink Orthogonal Frequency Division Multiple Access (OFDMA) physical layer convergence protocol data unit (PPDU) in a bandwidth of plurality of fundamental channels, wherein the OFDMA PPDU comprises a data portion and a common signaling portion, and the common signaling portion comprises a legacy preamble and a high efficient signal part A (HE-SIG-A), comprising:
at least one processor; and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the apparatus to:
send the common signaling portion of the uplink OFDMA PPDU only on multiple fundamental channels, wherein an allocated frequency resource unit (RU) for the data portion of the uplink OFDMAPPDU is located across the multiple fundamental channels of the plurality of fundamental channels and the bandwidth comprises at least one fundamental channel other than the multiple fundamental channels; and
send the data portion of the uplink OFDMA PPDU on the RU.