Patent ID: 9571163
Date: 2017-02-14
CPC Classifications: H04B,H04W

Claim:
1. A receiver comprising: a received signal strength indication (RSSI) determiner to determine a first strength of an electric field and a second strength of a magnetic field, the electric field and the magnetic field associated with an electromagnetic signal sent from a transmitter; an RSSI difference determiner to determine a difference between the first strength and the second strength; and a weight applier to determine a first estimated distance of the transmitter from the receiver based on the difference between the first strength and the second strength; a phase determiner to determine a first phase associated with the electric field and a second phase associated with the magnetic field; and a phase difference determiner to determine a difference between the first phase and the second phase, wherein the weight applier is structured to determine a second estimated distance of the transmitter from the receiver based on the difference between the first phase and the second phase; wherein the weight applier is structured to determine a third estimated distance and a fourth estimated distance of the transmitter from the receiver based on the first strength and the second strength respectively; wherein the weight applier is structured to determine a set of weights based on the estimated distances, the set of weights including a first weight corresponding to the first difference, a second weight corresponding to the second difference, a third weight corresponding to the first strength, and a fourth weight corresponding to the second strength.