ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,031, issued on Sept. 30, was assigned to NTT DOCOMO Inc. (Tokyo).

"Terminal" was invented by Takuma Takada (Tokyo) and Naoki Fujimura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A terminal is disclosed including a transmission unit that transmits a Sounding Reference Signal (SRS) and a control unit that switches a carrier so as to transmit the SRS. The control unit determines a period during which no signal transmission is performed in radio frames used in a serving cell, based on a subcarrier spacing of a cell corresponding to a switching destination carrier."

The patent was filed on June 7, 2019, under Application No. 17/616,907.

*For...