Secure ranging wireless communication
First Claim
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1. An apparatus, comprising a processing element configured to cause a first wireless device to:
- receive a ranging packet from a second wireless device in a wireless manner;
perform channel and noise estimation for the ranging packet;
estimate a first arrival path (FAP) for the ranging packet based at least in part on the channel and noise estimation for the ranging packet; and
perform one or more security checks for the ranging packet, wherein at least one of the security checks for the ranging packet is based at least in part on the channel and noise estimation for the ranging packet and the FAP for the ranging packet, wherein to perform the one or more security checks for the ranging packet, the processing element is further configured to cause the first wireless device to;
perform a first calculation for the ranging packet;
perform a second calculation for the ranging packet; and
determine whether the ranging packet is secure based at least in part on the first calculation and the second calculation.
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Abstract
This disclosure relates to techniques for performing secure ranging wireless communication. A first wireless device may receive a ranging packet from a second wireless device in a wireless manner. The ranging packet may include a first random sequence portion and a second random sequence portion. The first wireless device may perform one or more channel and noise estimations for the ranging packet. The first wireless device may perform one or more security checks for the ranging packet based on any or all of the first random sequence portion, the second random sequence portion, or the channel and noise estimation(s).
5 Citations
20 Claims
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1. An apparatus, comprising a processing element configured to cause a first wireless device to:
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receive a ranging packet from a second wireless device in a wireless manner; perform channel and noise estimation for the ranging packet; estimate a first arrival path (FAP) for the ranging packet based at least in part on the channel and noise estimation for the ranging packet; and perform one or more security checks for the ranging packet, wherein at least one of the security checks for the ranging packet is based at least in part on the channel and noise estimation for the ranging packet and the FAP for the ranging packet, wherein to perform the one or more security checks for the ranging packet, the processing element is further configured to cause the first wireless device to; perform a first calculation for the ranging packet; perform a second calculation for the ranging packet; and determine whether the ranging packet is secure based at least in part on the first calculation and the second calculation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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by a first wireless device; receiving a ranging packet from a second wireless device in a wireless manner, wherein the ranging packet comprises at least a first random sequence portion and a second random sequence portion, wherein the first random sequence portion and the second random sequence portion are generated based at least in part on a first nonce associated with the first wireless device and a second nonce associated with the second wireless device; performing channel and noise estimation for the ranging packet; and performing one or more security checks for the ranging packet based at least in part on the second random sequence portion and the channel and noise estimation for the ranging packet. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A first wireless device, comprising:
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an antenna; a radio operably coupled to the antenna; and a processing element operably coupled to the radio; wherein the antenna, radio, and processing element are configured to; receive a ranging packet from a second wireless device in a wireless manner, wherein the ranging packet comprises at least a first random sequence portion and a second random sequence portion; and perform one or more security checks for the ranging packet, wherein at least one of the one or more security checks is based at least in part on the first random sequence portion and the second random sequence portion, wherein to perform the one or more security checks for the ranging packet, the antenna, radio, and processing element are further configured to; perform a first channel estimation for ranging communication between the first wireless device and the second wireless device; perform a second channel estimation for ranging communication between the first wireless device and the second wireless device; and perform a consistency check between the first channel estimation and the second channel estimation. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification