Wireless signal identification
AssigneeEmpire Technology Development LLC
InventorsJin Sam Kwak, Hyun Oh Oh, Ju Hyung Son
Life of this patent
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Abstract
Technologies are generally described for identifying whether a propagation path between a mobile device and an access point is line-of-sight. In some examples, a method performed under control of a mobile device may include receiving, from an access point, a first signal transmitted at a first frequency band; receiving, from the access point, a second signal transmitted at a second frequency band; measuring a difference value between propagation properties of the first signal and the second signal; and identifying whether a propagation path between the mobile device and the access point is line-of-sight or non-line-of-sight based at least in part on the difference value.
Claims20
A mobile device, comprising:
- one or more processors;
- and
- one or more non-transitory computer-readable storage media, operatively coupled to the one or more processors, comprising logic, which in response to execution by the one or more processors, causes the mobile device to perform operations comprising:
- identify a first signal, received from an access point, that is at a first frequency band;
- identify a second signal, received from the access point, that is at a second frequency band;
- determine location information of the access point based at least, in part, on the first signal or the second signal;
- determine whether a difference between at least one propagation property of the first signal and at least one propagation property of the second signal is less than a particular value;
- in response to a determination that the difference between the at least one propagation property of the first signal and the at least one propagation property of the second signal is less than the particular value, determine that a propagation path between the mobile device and the access point is line-of-sight;
- and
- in response to the determination that the propagation path between the mobile device and the access point is line-of-sight, calculate a current location of the mobile device based at least in part on the location information of the access point.
A non-transitory computer-readable storage medium with instructions stored thereon, the instructions, in response to execution by one or more processors, cause the one or more processors to perform or control performance of operations comprising:
- identify a first signal, received from an access point, that is at a first frequency band;
- identify a second signal, received from the access point, that is at a second frequency band;
- determine location information of the access point based at least, in part, on the first signal or the second signal;
- determine whether a difference between at least one propagation property of the first signal and at least one propagation property of the second signal is less than a particular value;
- in response to a determination that the difference between the at least one propagation property of the first signal and the at least one propagation property of the second signal is less than the particular value, determine that a propagation path between the mobile device and the access point is line-of-sight;
- and
- in response to the determination that the propagation path between the mobile device and the access point is line-of-sight, calculate a current location of the mobile device based at least, in part, on the location information of the access point.
A computer-implemented method performed under control of a mobile device, the computer-implemented method comprising:
- receiving, from an access point, a first signal at a first frequency band;
- receiving, from the access point, a second signal at a second frequency band;
- determining location information of the access point based at least, in part, on the first signal or the second signal;
- determining whether a difference between at least one propagation property of the first signal and at least one propagation property of the second signal is less than a particular value;
- in response to determining that the difference between the at least one propagation property of the first signal and the at least one propagation property of the second signal is less than the particular value, determining that a propagation path between the mobile device and the access point is line-of-sight;
- and
- in response to determining that the propagation path between the mobile device and the access point is line-of-sight, calculating a current location of the mobile device based at least, in part, on the location information of the access point.
Dependencies are inferred from the claim text.