Patent ID: 8055759
Filing Date: 2011-11-08
Classification: H04L,H04W

Abstract:
1. A method of determining link qualities of a plurality of links between an access point and a plurality of client devices, comprising: detecting all client devices associated with the access point, wherein detecting a client device comprises the access point performing a request and response exchange with the client device; generating a list of the associated client devices; the access point transmitting keep alive packets to each of the associated client devices according to the list; the access point counting responses to the keep alive packets from each of the client devices; and the access point estimating a link quality of a wireless link between the access point and each client device based on the counted responses; wherein the estimates of link quality are based on a packet success probability as determined by a percentage of keep alive packets sent to each client device that result in a response received by the access point from the client device.