Patent ID: 9591640
Date: 2017-03-07
CPC Classifications: H04B,H04L,H04W,Y02D

Claim:
1. A method for performing channel access at a station (STA) of a multiuser (MU) group in a wireless communication system, the method comprising: receiving, by the STA, a resource assignment frame including one or more slot assignment fields and one group indicator field indicating whether or not the one or more slot assignment fields include at least one MU group slot assignment field for the MU group; and checking, by the STA, the group indicator field included in the resource assignment frame, wherein when the group indicator field indicates that the at least one MU group slot assignment field is present in the resource assignment frame, an initial bit of the at least one MU group slot assignment field is set to an end of MU (EOM) indicator, and the STA determines, by using the EOM indicator, the at least one MU group slot assignment field to be used for a comparison with a group identifier (GID) of the STA.