Patent ID: 11876739
Assignee: LG ELECTRONICS INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method performed in a wireless local area network (WLAN) system, the method comprising:
receiving, by a receiving station (STA), a Physical Protocol Data Unit (PPDU) from a transmitting STA; and
decoding, by the receiving STA, the PPDU,
wherein the PPDU includes a preamble and a data field,
wherein a bandwidth of the PPDU includes a lower resource unit (RU) and a higher RU,
wherein the data field includes first data for the lower RU and second data for the higher RU,
wherein in the data field, the higher RU is a duplicated RU from the lower RU along with a partial sign change, and
wherein the partial sign change is applied to a lower half frequency domain of the higher RU.