Feedback secured wireless ranging
AssigneeSamsung Electronics Co., Ltd.
InventorErik David LINDSKOG
Life of this patent
Estimating the term…
Abstract
A system and method for ranging secured by feedback of one or more channel metrics. The method may include: receiving, by a first modem, a first training signal, from a second modem; generating, by the first modem, a first estimate of a channel metric, based on the first training signal; receiving, by the first modem, from the second modem, a second estimate of the channel metric; determining, by the first modem, that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion; and denying, by the first modem, access to a resource.
Claims20
A method, comprising:
- receiving, by a first modem, a first training signal, from a second modem;
- generating, by the first modem, a first estimate of a channel metric, based on the first training signal;
- receiving, by the first modem, from the second modem, a second estimate of the channel metric;
- determining, by the first modem, that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion;
- and
- denying, by the first modem, access to a resource.
A system, comprising:
- a first modem, comprising:
- a radio;
- and
- a processing circuit,
- the processing circuit being configured to:
- receive a first training signal, from a second modem;
- generate a first estimate of a channel metric, based on the first training signal;
- receive, from the second modem, a second estimate of the channel metric;
- determine that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion;
- and
- deny access to a resource.
A system, comprising:
- a first modem, comprising:
- a radio;
- and
- means for processing,
- the means for processing being configured to:
- receive a first training signal, from a second modem;
- generate a first estimate of a channel metric, based on the first training signal;
- receive, from the second modem, a second estimate of the channel metric;
- determine that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion;
- and
- deny access to a resource.
Dependencies are inferred from the claim text.