Signal strength prediction in mobile devices

A method of predicting electromagnetic signal strength into the future between a mobile device and a base station is described. A processor of the mobile device monitors the signal strength and executes a signal strength predictor on the basis of a shadowing signal of the electromagnetic signal and on the basis that the shadowing signal is self-correlated. The signal strength predictor is executed without using topological data. A dynamic decision is made between optimal and sub-optimal signal strength predictors, the sub-optimal predictors being faster to execute. Factors such as predictive accuracy requirements and whether the network is infrastructure-based or is infrastructureless are taken into account in the decision. The processor executes the signal strength predictor using as inputs current signal strength, speed of at least one device, and autocovariance data of the shadowing signal. The autocovariance data of the shadowing signal may comprises an autocorrelation function governing self-correlation of the shadowing signal or de-correlation time of the shadowing signal.

Patents:
IE 20,090,504

Inventor(s): O'NUALLAIN EAMONN [IE]; GAERTNER GREGOR [DE]

Type of Offer: Sale



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