Features of future mobile systems

The key feature of the future mobile communications
systems is the seamless integration of terminals, networks,
and applications (together with users), based on the adaptive
management of the diversity . Diverse resources come
from several aspects. As the value chain of communications
industry shown in Fig. 3, multiple operators and providers
and producers together with various end users lead at last to
the multiple diversity in technologies including:

• Service diversity, voice, data, multimedia, etc.
• Backbone diversity, by different operators, different regions, and/or based on ifferent technologies.
• Access diversity, including both wired and wireless network infrastructures and air interfaces
• Terminal diversity, different capability combination of computing, processing,storage,and communication,with different user interfaces.