Patent ID: 9351281
Filing Date: 2016-05-24
CPC Classification: H04B,H04W

Claim Text:
1. A method for transmitting data to one or more client devices, comprising: providing a plurality of transceivers and antenna elements in a base transmitter array; establishing known tuned directions in the array, each tuned direction corresponding to a particular subset of the antenna elements; receiving encoded data from one of the client devices; tracking input time offsets of the data traversing the antenna elements; determining a best known tuned direction in the array for one of the client devices based upon the received encoded data; retuning the antenna elements in the other known tuned directions until they optimally receive the encoded data; recording the input time offsets of the data traversing the transceivers in these tuned directions; calculating a reverse timing offset based on the recorded input time offsets; and transmitting data to the client device in response to the encoded data, wherein the plurality of antenna elements transmit based on the calculated reverse timing offset.