Patent ID: 8964692
Filing Date: 2015-02-24
Classification: H04W

Abstract:
1. A method for detecting the presence, in a first radio access technology (RAT) network, of a device that communicates via a second RAT, comprising: estimating a plurality of received power values of transmissions via the second RAT at a plurality of time steps during a network quiet time of the first RAT network to generate a first set of received power values; calculating a first test statistic based on the first set of received power values, wherein the first test statistic comprises a mean of a plurality of a selected received power values of the first set of received power values having the highest values; comparing, by a processor, the first test statistic with a first threshold to determine if the device that communicates via the second RAT is in range; and in response to determining the device that communicates via the second RAT is in range, switching from a first operational frequency to a second operational frequency.