Abstract: Methods, systems and device for achieving synchronization in an orthogonal time frequency space (OTFS) signal receiver are described. An exemplary signal reception technique includes receiving an OTFS modulated wireless signal comprising pilot signal transmissions interspersed with data transmissions, calculating autocorrelation of the wireless signal using the wireless signal and a delayed version of the wireless signal that is delayed by a pre-determined delay, thereby generating an autocorrelation output, processing the autocorrelation filter through a moving average filter to produce a fine timing signal.
Type:
Grant
Filed:
November 29, 2021
Date of Patent:
April 25, 2023
Assignee:
Cohere Techologies, Inc.
Inventors:
Vamadevan Namboodiri, Karl Sanders, Yaron Rozenbaum, James Delfeld