Patent ID: 11956781
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
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.