Patent ID: 9219308
Filing Date: 2015-12-22
Classification: H01Q,H04W

Abstract:
1. A method at a device having an antenna and a plurality of parasitic elements, the method comprising: sensing a change in impedance of the antenna; selecting a subset of parasitic element options from a set of parasitic element options based on a stored table of impedances, the parasitic elements each comprised of non-tunable conductive strips which may be selectively electrically connected to the antenna; if the subset of parasitic element options is greater than one and if at least a pair of parasitic elements each provides a same antenna impedance, then for each parasitic element option within the subset of parasitic element options: receiving at said antenna signal samples encoded with known sequence; and correlating the received signal samples with the known sequence to determine a channel quality measure; and wherein the method further comprises performing a beam steering action based on the change in antenna impedance and the channel quality measure, the beam steering action comprising selecting one or more of the plurality of parasitic elements to connect to said antenna such that signal quality is improved.