In 2018, Cohere decided to bring its innovation around the use of Delay Doppler-based channel detection, estimation and prediction, as well as precoding software to improve 4G and 5G wireless systems. This innovative technology is agnostic to any modulation scheme and is fully compliant with 3GPP. The pioneering work in the Delay Doppler domain enables robust channel estimation and accurate channel prediction into the future. It alleviates handset feedback requirements by leveraging geometric reciprocity and reduces computation complexity through concise channel representation. All of these features combine to deliver significant spectrum multiplier effect for 4G and 5G networks in both FDD and TDD.
Since 2011, Cohere’s innovations have resulted in over 100 patents for OTFS modulation, Delay Doppler channel modulation, distributed cloud functions and antenna designs.
DR. HADANI ON OTFS COMMUNICATIONS THEORY
LEARNING IN THE DELAY-DOPPLER DOMAIN BY DR. ROBERT CALDERBANK, DUKE UNIVERSITY
https://bigdata.duke.edu/programs/air-force-center-of-excellence (October 10, 2022 Meeting)
A “Physical Layer Machine Learning Applications Want To See”? (November 14, 2022, 6G World)