COMPENSATION OF THE SIGNAL ATTENUATION BY HUMAN BODY IN INDOOR WI-FI POSITIONING
First Claim
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1. A mobile wireless device, comprising:
- a positioning system to determine a position of a mobile wireless device and to compensate a received signal strength indicator (RSSI) signal received from an access point (AP) when there is a line of sight channel and the positioning system determines the body of the user of the mobile wireless device is attenuating the received RSSI signal due to the user'"'"'s body being between the mobile wireless device and the AP.
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Abstract
A mobile wireless device that includes a positioning system to determine a position of the mobile wireless device and to compensate a received signal strength indicator (RSSI) signal received from an access point (AP) when there is a line-of-sight (LOS) channel and the positioning system determines the body of the user of the mobile wireless device is attenuating the received RSSI signal due to the user'"'"'s body being between the mobile wireless device and the AP.
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Citations
20 Claims
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1. A mobile wireless device, comprising:
a positioning system to determine a position of a mobile wireless device and to compensate a received signal strength indicator (RSSI) signal received from an access point (AP) when there is a line of sight channel and the positioning system determines the body of the user of the mobile wireless device is attenuating the received RSSI signal due to the user'"'"'s body being between the mobile wireless device and the AP. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A positioning system for a mobile wireless device, comprising:
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a transceiver to receive a received signal strength indicator (RSSI) signal from a Wi-Fi access point (AP); and a positioning system coupled to the transceiver to determine a position of a mobile wireless device, comprising; a compensation unit to compensate the RSSI signal when the positioning system determines that a user'"'"'s body of the mobile wireless device is attenuating the RSSI signal due to the user being located between the mobile wireless device and the AP from which the RSSI signal is being received, wherein the compensation is performed before the positioning system computes the position estimate for the mobile wireless device; and a position estimator coupled to the compensation unit to estimate the position of the mobile wireless device with the RSSI signals. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method to compensate indoor positioning signals for a mobile wireless device, comprising:
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receiving, by a mobile wireless device, a wireless signal from an access point (AP); determining, by the mobile wireless device, whether the body of the user of the mobile wireless device is attenuating the wireless signal; and compensating, by the mobile wireless device, the wireless signal when it is determined that the wireless signal is being attenuated due to the body of the user. - View Dependent Claims (17, 18, 19, 20)
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Specification