Patent ID: 8948152
Filing Date: 2015-02-03
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method of communicating in a wireless local area network, the method comprising: receiving, by a mobile station, a first physical layer protocol data unit (PPDU) transmitted by an access point (AP) via multi-user multiple input/multiple output (MU MIMO) transmission to a plurality of mobile stations, the first PPDU including a first feedback sequence identifier that includes a specific value identifying the plurality of stations, determining, by the mobile station, that the mobile station belongs to one of the plurality of stations indicated by the first feedback sequence identifier; if it is determined that the mobile station belongs to one of the plurality of stations, estimating a MIMO channel based on the first PPDU; and transmitting, by the mobile station, a second PPDU to the AP, wherein the second PPDU includes channel information of the MIMO channel and a second feedback sequence identifier, the second feedback sequence identifier including the specific value indicated by the first feedback sequence identifier.