US 11,943,810 B2
Wireless communication system and wireless communication method
Shoko Shinohara, Yokosuka (JP); Yasuhiko Inoue, Yokosuka (JP); Junichi Iwatani, Yokosuka (JP); and Masato Mizoguchi, Yokosuka (JP)
Assigned to NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Filed by NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo (JP)
Filed on Aug. 10, 2022, as Appl. No. 17/885,345.
Application 17/885,345 is a continuation of application No. 16/914,902, filed on Jun. 29, 2020, granted, now 11,432,327.
Application 16/914,902 is a continuation of application No. 15/764,171, granted, now 10,743,346, issued on Aug. 11, 2020, previously published as PCT/JP2016/079667, filed on Oct. 5, 2016.
Claims priority of application No. 2015-197969 (JP), filed on Oct. 5, 2015.
Prior Publication US 2022/0386378 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/08 (2009.01); H04L 1/00 (2006.01); H04W 16/08 (2009.01); H04W 28/06 (2009.01); H04W 72/541 (2023.01); H04W 48/02 (2009.01); H04W 84/12 (2009.01)
CPC H04W 74/0816 (2013.01) [H04L 1/0021 (2013.01); H04W 16/08 (2013.01); H04W 28/06 (2013.01); H04W 72/541 (2023.01); H04W 48/02 (2013.01); H04W 84/12 (2013.01)] 2 Claims
OG exemplary drawing
 
1. A wireless communication station which transmits and receives a frame using a channel by access control based on carrier sense multiple access with collision avoidance (CSMA/CA) using a clear channel assessment threshold (CCA threshold), wherein:
a format that includes a field for an identification of a basic service set (BSS) within a preamble of the frame is defined as an HE format;
said wireless communication station comprising a control part which is configured to perform:
checking a destination station to which an HE format frame is scheduled to be transmitted;
controlling the CCA threshold to a value higher than a default value if the destination station is an HE station; and
transmitting the frame if the channel is determined to be idle by the CSMA/CA.