ALEXANDRIA, Va., June 9 -- United States Patent no. 12,652,696, issued on June 9.

"HARQ feedback transmission for sidelink communication in unlicensed spectrum" was invented by Shuanshuan Wu (San Diego), Arthur Gubeskys (San Diego), Stelios Stefanatos (San Diego), Parisa Cheraghi (Cambridge, Great Britain), Yisheng Xue (San Diego), Jing Sun (San Diego) and Xiaoxia Zhang (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), a sidelink transmission in a first slot of an unlicensed channel. The method also includes performing, by the UE, a Channel Access (CA) operation for a hybrid automatic repeat request (HARQ)...