US 12,317,317 B2
Trigger-based data transmission
Insun Jang, Seoul (KR); Jeongki Kim, Seoul (KR); Jinsoo Choi, Seoul (KR); Suhwook Kim, Seoul (KR); Namyeong Kim, Seoul (KR); Sungjin Park, Seoul (KR); and Taewon Song, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/760,482
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 9, 2021, PCT No. PCT/KR2021/001692
§ 371(c)(1), (2) Date Aug. 10, 2022,
PCT Pub. No. WO2021/162399, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 10-2020-0018547 (KR), filed on Feb. 14, 2020; application No. 10-2020-0029837 (KR), filed on Mar. 10, 2020; application No. 10-2020-0038407 (KR), filed on Mar. 30, 2020; and application No. 10-2021-0010003 (KR), filed on Jan. 25, 2021.
Prior Publication US 2023/0081649 A1, Mar. 16, 2023
Int. Cl. H04W 74/0808 (2024.01); H04W 84/12 (2009.01)
CPC H04W 74/0808 (2013.01) [H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, by a station (STA), a trigger frame from an access point (AP), wherein the trigger frame includes a resource unit (RU) allocation subfield for a trigger-based (TB) physical protocol data unit (PPDU), wherein a value of the RU allocation subfield is set for an assigned RU for the STA;
determining, by the STA, whether the assigned RU includes at least one 20 MHz subchannel which is considered busy based on a clear channel assessment (CCA), wherein the CCA is performed in units of 20 MHz; and
transmitting, by the STA to the AP, the TB PPDU, wherein the TB PPDU is punctured based on the determining,
wherein the TB PPDU includes a legacy signal (L-SIG) field, a repeated L-SIG (RL-SIG) field which is contiguous to the L-SIG field, and a control signal (SIG) field which is contiguous to the RL-SIG field,
wherein the L-SIG field includes a length field which is set to a value satisfying a condition that a remainder is zero when the length field is divided by three,
wherein the control SIG field includes a physical (PHY) version identifier having a length of three bits and identifying a PHY version of the TB PPDU.