US 12,445,247 B2
Channel acquisition using orthogonal time frequency space modulated pilot signals
Yoav Hebron, San Jose, CA (US); Shlomo Selim Rakib, San Jose, CA (US); Ronny Hadani, San Jose, CA (US); Michail Tsatsanis, San Jose, CA (US); Clayton Ambrose, San Jose, CA (US); Jim Delfeld, San Jose, CA (US); and Robert Fanfelle, San Jose, CA (US)
Assigned to Cohere Technology, Inc., San Jose, CA (US)
Filed by Cohere Technologies, Inc., San Jose, CA (US)
Filed on Apr. 5, 2024, as Appl. No. 18/628,558.
Application 18/628,558 is a continuation of application No. 17/805,569, filed on Jun. 6, 2022, granted, now 11,968,144.
Application 17/805,569 is a continuation of application No. 16/947,799, filed on Aug. 17, 2020, granted, now 11,362,786, issued on Jun. 13, 2022.
Application 16/947,799 is a continuation of application No. 16/143,193, filed on Sep. 26, 2018, granted, now 10,749,651, issued on Aug. 18, 2020.
Application 16/143,193 is a continuation of application No. PCT/US2017/025166, filed on Mar. 30, 2017.
Claims priority of provisional application 62/316,437, filed on Mar. 31, 2016.
Prior Publication US 2024/0348389 A1, Oct. 17, 2024
Int. Cl. H04L 5/00 (2006.01); H04B 7/005 (2006.01); H04B 17/309 (2015.01); H04B 17/373 (2015.01); H04L 25/02 (2006.01); H04L 27/01 (2006.01); H04L 27/26 (2006.01)
CPC H04L 5/0048 (2013.01) [H04B 7/005 (2013.01); H04B 17/309 (2015.01); H04B 17/373 (2015.01); H04L 5/0007 (2013.01); H04L 5/0044 (2013.01); H04L 25/0202 (2013.01); H04L 25/0204 (2013.01); H04L 25/0226 (2013.01); H04L 25/0232 (2013.01); H04L 27/01 (2013.01); H04L 27/2639 (2013.01); H04L 27/2647 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless communication method implemented by a transmitter of wireless signals, comprising:
transmitting a wireless signal comprising a data signal portion and a reference signal portion multiplexed in a delay-Doppler domain, wherein the reference signal portion is sent on a first time-frequency lattice that is coarser than a second time-frequency lattice on which data portion is sent, and wherein the first time-frequency lattice is a subset of the second time-frequency lattice.