US 11,716,125 B2
Wireless communication method and wireless communication terminal for signaling multi-user packet
Juhyung Son, Gyeonggi-do (KR); Jinsam Kwak, Gyeonggi-do (KR); Geonjung Ko, Gyeonggi-do (KR); and Woojin Ahn, Gyeonggi-do (KR)
Assigned to WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR); and SK TELECOM CO., LTD., Seoul (KR)
Filed by WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., Gyeonggi-do (KR); and SK TELECOM CO., LTD., Seoul (KR)
Filed on Oct. 6, 2021, as Appl. No. 17/494,831.
Application 17/494,831 is a continuation of application No. 16/798,197, filed on Feb. 21, 2020, granted, now 11,171,695.
Application 16/798,197 is a continuation of application No. 16/731,031, filed on Dec. 31, 2019, granted, now 11,159,210.
Application 16/731,031 is a continuation of application No. 16/505,664, filed on Jul. 8, 2019, granted, now 10,567,047, issued on Feb. 18, 2020.
Application 16/505,664 is a continuation of application No. PCT/KR2018/000443, filed on Jan. 9, 2018.
Claims priority of application No. 10-2017-0003147 (KR), filed on Jan. 9, 2017; and application No. 10-2017-0008927 (KR), filed on Jan. 18, 2017.
Prior Publication US 2022/0029669 A1, Jan. 27, 2022
Int. Cl. H04L 5/12 (2006.01); H04B 7/0452 (2017.01); H04B 7/02 (2018.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04B 7/0452 (2013.01) [H04B 7/028 (2013.01); H04L 5/0023 (2013.01); H04L 5/0048 (2013.01); H04L 27/2602 (2013.01); H04L 27/2603 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A wireless communication terminal, the terminal comprising:
a communication unit; and
a processor configured to process signals transmitted and received through the communication unit,
wherein the processor is configured to:
receive wireless signal,
identify whether a channel status of a bandwidth for a physical layer protocol data unit, PPDU, is idle or busy based on the received wireless signal,
wherein the channel status of the bandwidth is individually identified for each of a plurality of channels constituting the bandwidth,
wherein the plurality of the channels includes a primary channel and at least one sub-channel,
wherein the channel status of each of the plurality of channels is transmitted from a physical, PHY, layer to a medium access control, MAC, layer through PHY-clear channel assessment (CCA).indication including a bitmap comprising at least one bit indicating the channel status for the at least one sub-channel, and
wherein the PHY-CCA.indication including the bitmap is transmitted from the PHY layer to the MAC layer when the channel state of the primary channel is idle.