US 11,991,676 B2
Method and device for transmitting data in wireless LAN system
Taewon Song, Seoul (KR); Suhwook Kim, Seoul (KR); Jeongki Kim, Seoul (KR); Kiseon Ryu, Seoul (KR); Insun Jang, Seoul (KR); and Jinsoo Choi, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/272,513
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Sep. 18, 2019, PCT No. PCT/KR2019/012025
§ 371(c)(1), (2) Date Mar. 1, 2021,
PCT Pub. No. WO2020/060168, PCT Pub. Date Mar. 26, 2020.
Claims priority of provisional application 62/733,091, filed on Sep. 19, 2018.
Prior Publication US 2022/0110119 A1, Apr. 7, 2022
Int. Cl. H04W 72/04 (2023.01); H04W 72/0453 (2023.01); H04W 72/12 (2023.01); H04W 72/1263 (2023.01); H04W 72/23 (2023.01); H04W 84/12 (2009.01)
CPC H04W 72/0453 (2013.01) [H04W 72/1263 (2013.01); H04W 72/23 (2023.01); H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for transmitting data in a wireless local area network (WLAN) system, the method comprising:
transmitting, by an access point (AP), a Band Switch Announcement element to a station (STA) through a first band supported by first and second radio frequencies (RFs);
changing, by the AP, the first band supported by the second RF to a second band based on the Band Switch Announcement element; and
transmitting, by the AP, first data to the STA through the first band supported by the first RF and the second band supported by the second RF,
wherein the first data is transmitted through a multi-band into which the first band and the second band are aggregated,
wherein the Band Switch Announcement element comprises band information on the second band,
wherein the band information comprises a Basic Service Set Identifier (BSSID) field, a Beacon Interval field, an Enhanced Distributed Coordination Access (EDCA) Interval field, a Supported Rates field, and a Count field,
wherein the BSSID field comprises information on an identifier of a BSS configured for the second band,
wherein the Beacon Interval field comprises information on a beacon interval configured for a channel in the second band,
wherein the EDCA Interval field comprises time information on an EDCA or scheduling access interval in the channel in the second band,
wherein the Supported Rates field comprises information on a data rate supportable in the channel in the second band, and
wherein the Count field comprises information on a number of remaining transmissions of a beacon until the band supported by the second RF is changed.