US 11,991,745 B2
Method and device for identifying channel information in wireless LAN system
Suhwook Kim, Seoul (KR); Jeongki Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); and Eunsung Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/261,539
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jul. 19, 2019, PCT No. PCT/KR2019/008973
§ 371(c)(1), (2) Date Jan. 19, 2021,
PCT Pub. No. WO2020/022712, PCT Pub. Date Jan. 30, 2020.
Claims priority of application No. 10-2018-0084375 (KR), filed on Jul. 19, 2018.
Prior Publication US 2021/0298076 A1, Sep. 23, 2021
Int. Cl. H04W 48/12 (2009.01); H04W 48/16 (2009.01); H04W 72/0453 (2023.01); H04W 74/08 (2009.01); H04W 74/0808 (2024.01); H04W 84/12 (2009.01)
CPC H04W 74/0808 (2013.01) [H04W 48/16 (2013.01); H04W 72/0453 (2013.01); H04W 84/12 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method in a wireless local area network (WLAN) system, the method comprising:
receiving, by a station (STA) from an access point (AP), a control message including information related to a basic service set (BSS),
wherein the control message includes an extreme high throughput (EHT) operation element including information related to an EHT standard, a very high throughput (VHT) operation element including information related to a VHT standard, and a high throughput (HT) operation element including information related to an HT standard,
wherein the VHT operation element includes information related to at least one first operating channel allocated for a transmission of a VHT physical protocol data unit (PPDU), the at least one first operating channel is included in at least one first band, and the at least one first band is at least one of a 2.4 GHz band, a 5 GHz band, or a 6 GHz band,
wherein the EHT operation elements includes a first field, a second field being contiguous to the first field, and a third field being contiguous to the second field,
wherein a value of the first field is determined as a number of bands supporting a transmission of an EHT PPDU minus the at least one first band,
wherein the second field indicates a frequency position of a Primary 20 MHz channel of the BSS,
wherein the third field includes an operating class sub-field and a channel number sub-field of at least one second operating channel which is not indicated by the VHT operation element, and
wherein the operating class sub-field indicates channel starting frequency information, channel spacing information, and behavior limit information of the at least one second operating channel;
acquiring information related to the at least one first operating channel and the at least one second operating channel; and
performing communication based on the acquired information.