Patent ID: 9184839
Filing Date: 2015-11-10
Classification: H04B

Abstract:
1. A method for establishing a unique wireless connection between wireless devices comprising: receiving at a first wireless device, via complimentary metal-oxide semiconductor (CMOS) radio frequency circuitry having first operating conditions, data from a second wireless device over a wireless link, wherein the data includes an identifier that uniquely identifies the second wireless device; estimating, based on the data received over the wireless link, first impairments of the CMOS circuitry having the first operating conditions; associating the estimated first impairments of the CMOS circuitry with the identifier that uniquely identifies the second wireless device; using the estimated first impairments associated with the identifier to compensate the CMOS circuitry having the first operating conditions; re-characterizing the estimated first impairments in response to a change in the first operating conditions of the CMOS circuitry to second operating conditions of the CMOS circuitry to provide estimated second impairments; storing the estimated first and second impairments as first and second impairment values associated with the identifier that uniquely identifies the second wireless device and with the first and second operating conditions, respectively; and in response to an attempt to establish a wireless connection between the first wireless device and the second wireless device under the first operating conditions, using the estimated first impairment values from storage to compensate the CMOS circuitry, the compensation effective to enable a unique wireless link between the first wireless device and the second wireless device; or in response to an attempt to establish a wireless connection between the first wireless device and the second wireless device under the second operating conditions, using the estimated second impairment values from storage to compensate the CMOS circuitry, the compensation effective to enable a unique wireless link between the first wireless device and the second wireless device.