US 12,294,477 B2
Method and apparatus for receiving PPDU with duplicated data through 80 MHz band in wireless LAN system
Eunsung Park, Seoul (KR); Jinyoung Chun, Seoul (KR); Jinsoo Choi, Seoul (KR); and Dongguk Lim, Seoul (KR)
Assigned to LG Electronics Inc.
Appl. No. 18/010,952
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Jun. 30, 2021, PCT No. PCT/KR2021/008248
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2022/005194, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 10-2020-0081636 (KR), filed on Jul. 2, 2020; application No. 10-2020-0081649 (KR), filed on Jul. 2, 2020; and application No. 10-2020-0084241 (KR), filed on Jul. 8, 2020.
Prior Publication US 2023/0239191 A1, Jul. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 27/26 (2006.01); H04L 1/00 (2006.01); H04W 72/0453 (2023.01); H04W 84/12 (2009.01)
CPC H04L 27/2621 (2013.01) [H04L 1/0068 (2013.01); H04W 72/0453 (2013.01); H04W 84/12 (2013.01)] 13 Claims
OG exemplary drawing
 
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 through an 80 MHz band; and
decoding, by the receiving STA, the PPDU,
wherein the PPDU includes a preamble and a data field,
wherein the 80 MHz band includes first and second 484 tone-resource units (RUs),
wherein the data field includes first data for the first 484-tone RU and second data for the second 484-tone RU,
wherein the second data is data obtained by duplicating the first data and applying phase rotation thereto,
wherein the first and second 484-tone RUs are resource units including 484 tones,
wherein constellation demapping is performed on the first data based on binary phase shift keying (BPSK) and dual carrier modulation (DCM) in the first 484-tone RU,
wherein a coding rate for the BPSK is ½,
wherein, based on the DCM being performed in the first 484-tone RU, a number of data subcarriers per RU is equal to half a number of data subcarriers per RU in an absence of the DCM, and
wherein the first data and the second data are received through a single spatial stream.