US 12,016,003 B2
Method and device for transmitting feedback frame in wide band in wireless LAN system
Eunsung Park, Seoul (KR); Jinsoo Choi, Seoul (KR); and Dongguk Lim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/597,318
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jun. 16, 2020, PCT No. PCT/KR2020/007785
§ 371(c)(1), (2) Date Jan. 3, 2022,
PCT Pub. No. WO2021/006495, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 10-2019-0082114 (KR), filed on Jul. 8, 2019.
Prior Publication US 2022/0322348 A1, Oct. 6, 2022
Int. Cl. H04W 72/02 (2009.01); H04W 72/0453 (2023.01); H04W 84/12 (2009.01)
CPC H04W 72/0453 (2013.01) [H04W 72/02 (2013.01); H04W 84/12 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, the method comprising:
receiving, by a receiving station (STA), a Null Data Packet Announcement (NDPA) frame from a transmitting STA;
receiving, by the receiving STA, a Null Data Packet (NDP) frame from the transmitting STA; and
transmitting, by the receiving STA, a feedback frame to the transmitting STA based on the NDP frame,
wherein the feedback frame includes information on a feedback subcarrier for a wideband,
wherein, when the wideband is a contiguous 320 MHz band and a grouping value is equal to Ng, indexes of the feedback subcarrier are set to [−2036:Ng:−1540], [−1532:Ng:−1036], [−1012:Ng:−516], [−508:Ng:−12], [12:Ng:508], [516:Ng:1012], [1036:Ng:1532], and [1540:Ng:2036], and
wherein [A:Ng:B] indicates that indexes of the feedback subcarrier are set from A to B at a spacing of Ng.