[Note: All radio sectors other than Transportation involve, in large part, vehicle-centric radio communications and thus are also substantially in the Transportation sector. Factoring this in, Transportation is the largest sector.
[2] ISDB-Tn (narrow), & ISDB-Tn + TETRA. For more on ISDB-T see, DiBEG (Digital Broadcast Experts Group).
For an example of ISDB-T chips, and the strong prospects for mobile digital high-speed broadcast, go here.