ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,936, issued on June 3, was assigned to NOKIA TECHNOLOGIES OY (Espoo, Finland).

"Handling TAT expiry of multiple TAGs" was invented by Samuli Heikki Turtinen (Ii, Finland), Chunli Wu (Beijing), Matha Deghel (Montrouge, France) and Timo Koskela (Oulu, Finland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example embodiments of the present disclosure provide a solution for handling expiry of at least one time alignment timer (TAT) of multiple timing advance groups (TAGs) associated with a serving cell. In an example method, the terminal device receives determines at least two TAGs for a serving cell, wherein the at least two TAGs comprise a primary TAG...