US 11,956,781 B2
Communication method, wireless station and communication device for receving frame using certain bandwidth and spatial stream
Il-Gu Lee, Seoul (KR); Sok-Kyu Lee, Daejeon (KR); Hyun-Kyu Chung, Daejeon (KR); and Dae-Sik Kim, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed on Dec. 6, 2020, as Appl. No. 17/113,048.
Application 17/113,048 is a continuation of application No. 15/910,879, filed on Mar. 2, 2018, granted, now 10,863,480.
Application 15/910,879 is a continuation of application No. 15/231,786, filed on Aug. 9, 2016, abandoned.
Application 15/231,786 is a continuation of application No. 13/779,475, filed on Feb. 27, 2013, granted, now 9,432,940, issued on Aug. 30, 2016.
Application 13/779,475 is a continuation of application No. 13/458,940, filed on Apr. 27, 2012, granted, now 8,411,698, issued on Apr. 2, 2013.
Application 13/458,940 is a continuation of application No. PCT/KR2010/007494, filed on Oct. 28, 2010.
Claims priority of application No. 10-2009-0103008 (KR), filed on Oct. 28, 2009.
Prior Publication US 2021/0127384 A1, Apr. 29, 2021
Int. Cl. H04W 72/20 (2023.01); H04L 5/00 (2006.01); H04L 47/70 (2022.01); H04W 74/00 (2009.01); H04L 1/00 (2006.01); H04W 24/02 (2009.01)
CPC H04W 72/20 (2023.01) [H04L 5/0094 (2013.01); H04L 47/70 (2013.01); H04W 74/002 (2013.01); H04L 1/0002 (2013.01); H04L 1/0006 (2013.01); H04W 24/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication method comprising:
transmitting, from a wireless station, a first frame to another wireless station using a plurality of antennas, wherein the first frame comprises first information indicating a first bandwidth and second information indicating a number of a first set of spatial streams;
receiving, at the wireless station, a second frame from the another wireless station using a second bandwidth and a second set of spatial streams; and
determining, by the wireless station, that the another wireless station has received the first frame at least based on the second bandwidth or a number of the second set of spatial streams,
wherein:
the second frame comprises user data;
the second bandwidth is narrower than or equal to the first bandwidth; and
the number of the second set of spatial streams is smaller than or equal to the number of the first set of spatial streams.