Some claims to be proven but respected telcos think they have something. Engineers at five major phone companies think Cohere's OTFS modulation may significantly improve performance in MIMO systems, including most of 5G. At 3GPP, AT&T, China Mobile, Deutsche Telekom, Telefonica and Telstra co-authored 3GPPP proposals with Cohere and urged 3GPP to study it closely. R1-162929.zipR1-162930.zipR1-162931.zip These were expressions of interest, not full endorsements. Only Telstra discussed field testing.
EE Times, yet again, has by far the best reporting. Rick Merritt heard from China Mobile's expert, Chih-Lin I, “We co-signed with Cohere because we need to bring in new blood and have new flexible thinking. For me, the most interesting part is their high mobility for hitting the goal of service at 500 km/hour, which we want for our high speed railways