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Outline of technologies to ensure stable mobile wireless communications in wireless environments.

Introduction of FDMA, TDMA and CDMA multiple access technologies that allow multiple users to communicate by simultaneously sharing the same wireless communication channel.

Outline of W-CDMA technology which forms the foundation of the Third-Generation Mobile Communications System.

Outline of cell technologies that enable wide-area mobile communications services.

Outline of basic mobile telephone technologies.

Outline of technologies used in mobile communications antennas, base stations and mobile stations.

Outline of aircraft radio telephone technologies.

Outline of marine mobile telephone technologies.

Outline of satellite telephone technologies.

Outline of quickcast technologies.

Outline of i-mode network (PDC) technologies.