(b) With the aid of a diagram, explain the basic elements of third generation (3G) wireless mobile system architecture s

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(b) With the aid of a diagram, explain the basic elements of
third generation (3G) wireless mobile system architecture such as
Universal Mobile Telecommunication System (UMTS).
The radio waves in a cellular system experience a dynamic
propagation environment, which resulting the measured signal
strength at the receiver changes. Explain briefly the three major
factors that could contribute to the changes.