US 9,432,966 B2 · Method, apparatus, and computer program product for secure distance bounding based on direction measurement

Abstract

Method, apparatus, and computer program product example embodiments provide secure distance estimation based on direction measurement. According to an example embodiment of the invention, a method comprises receiving, by an apparatus (102) from a remote device (100), one or more wireless packets including information packets containing angle of departure information (160) of the remote device (100); determining in the apparatus (102), a first angle of departure and a second angle of departure from the received angle of departure information; and generating distance estimation data in the apparatus relative to the remote device (100), based on the determined first angle of departure and second angle of departure.

Claims22

Dependent claims

A method, comprising:

receiving, by an apparatus from a remote device, one or more wireless packets including information packets containing angle of departure information of the remote device;
sampling and decoding, by the apparatus, a reference data stream of direction estimation data in the received angle of departure information, the sampling and decoding performed for first and second locations separated by a separation distance;
determining in the apparatus, a first angle of departure and a second angle of departure from the received angle of departure information, based on the sampling and decoding performed for the first and second locations;
and
generating distance estimation data in the apparatus relative to the remote device, based on a difference between the first angle of departure and second angle of departure, and on the separation distance.

2 more elements

An apparatus, comprising:

at least one processor;
at least one memory including computer program code;
the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to:
receive from a remote device, one or more wireless packets including information packets containing angle of departure information of the remote device;
sample and decode a reference data stream of direction estimation data in the received angle of departure information, the sampling and decoding performed for first and second locations separated by a separation distance;
determine a first angle of departure and a second angle of departure from the received angle of departure information, based on the sampling and decoding performed for the first and second locations;
and
generate distance estimation data relative to the remote device, based on a difference between the first angle of departure and second angle of departure, and on the separation distance.

5 more elements

A method comprising:

receiving, by an apparatus from a remote device, one or more wireless packets including information packets containing angle of arrival information from the remote device;
sampling and decoding, by the apparatus, a reference data stream of direction estimation data in the received angle of arrival information, the sampling and decoding performed for first and second locations separated by a separation distance;
determining in the apparatus, a first angle of arrival and a second angle of arrival from the received angle of arrival information, based on the sampling and decoding performed for the first and second locations;
and
generating distance estimation data in the apparatus relative to the remote device, based on a difference between the first angle of arrival and second angle of arrival, and on the separation distance.