US Patent Issued to NEC on Sept. 30 for "Methods and apparatuses for transmitting control-plane messages in cells using different radio access technologies" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,619, issued on Sept. 30, was assigned to NEC Corp. (Tokyo).

"Methods and apparatuses for transmitting control-plane messages in cells using different radio access technologies" was invented by Hisashi Futaki (Tokyo) and Sadafuku Hayashi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radio station (2) transmits or receives, to or from a radio terminal (1) in a second cell (23, 24), a CP message containing a NAS message or an RRC message or both, when a predetermined condition is satisfied. The second cell (23, 24) uses a RAT different from that of the first cell, and is used in addition and subordinate to the first cell. The predetermined c...