Verizon Patent and Licensing Inc.

Ray A Sears, Jr

Sandeep Sharma

Yaojun Zeng

Shi-Jau Simon Wang

A method, a device, and a non-transitory storage medium provide to generate a first signal that includes a perfect polyphase-encoding of an identifier of the wireless station; transmit the first signal; receive from an end device, a second signal that is responsive to the first signal and includes a perfect polyphase-encoding of the identifier of the wireless station and an identifier of the end device; autocorrelate the first signal and the second signal; calculate in response to the autocorrelation, a time difference between the first signal and the second signal; calculate in response to the calculation, a phase difference between the first signal and the second signal; and calculate in response to the calculation of the phase difference, a distance between the wireless station and the end device based on the time difference, the phase difference, the identifier of the wireless station, and the identifier of the end device.

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Auburn, CA, United States of America

Ray A Sears, Jr