Rich Media

The microphone, the CMOS imager, and the keyboard are the hardware items used to
capture subscriber-generated rich media. Rich media is a mix of audio, image, video,
and application data. The rich media mix determines the bit rate and bit quality requirements of the offered traffic mix. Figure 4.4, taken from an Ericsson presentation,
shows how an image/video bandwidth and audio bandwidth application bandwidth
footprint can be realized. Handset hardware determines the offered traffic mix, both on
the uplink (dynamic range of the CMOS imager and MPEG-4 encoder) and on the
downlink (display and display driver bandwidth). 117