Enabling Proximity Operations with Long-Range Wireless Communication Interfaces
AssigneeTexas Instruments Incorporated
InventorsAvi Baum, Eli Dekel, Yaniv Tzoreff
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Abstract
Systems and methods for enabling proximity operations with long-range wireless communication interfaces are described. In an illustrative, non-limiting embodiment, a method may include transmitting a plurality of data packets using a WiFi interface of a first device, where each data packet has a signal strength following a predetermined pattern; and receiving an indication, via the WiFi interface, of whether the predetermined pattern has been identified by a second device.
Claims20
A method, comprising:
- transmitting a plurality of data packets using a WiFi interface of a first device, wherein each data packet has a signal strength following a predetermined pattern;
- and
- receiving an indication, via the WiFi interface, of whether the predetermined pattern has been identified by a second device.
An electronic device having a processor and a memory coupled to the processor, the memory configured to store program instructions executable by the processor to cause the electronic device to:
- configure an impedance matching circuit of a WiFi interface to provide a first amount of signal degradation;
- transmit a first packet via the WiFi interface;
- configure the impedance matching circuit of the WiFi interface to provide a second amount of signal degradation different from the first amount of degradation;
- transmit a second packet via the WiFi interface, wherein a difference between the first and second amounts of signal degradation is identifiable by another electronic device in communication with the electronic device during a proximity operation;
- and receive an indication from the other electronic device of whether the difference between the first and second amounts of signal degradation is proportional to an expected difference.
A non-transitory electronic storage medium having program instructions stored thereon that, upon execution by a processor within an electronic device, cause the electronic device to:
- receive a plurality of data packets via a wireless communication interface, wherein each data packet has a radio frequency (RF) signal power that follows a time-varying pattern;
- and
- transmit an indication, via the wireless communication interface as part of a proximity operation, of whether the time-varying pattern matches a predetermined pattern.
Dependencies are inferred from the claim text.