
236 ◾ Mobile Evolution: Insights on Connectivity and Service
user is indoors, outdoors, or under mobile conditions—demands higher link budgets and cover-
age augmentation, relative to the relatively monolithic circuit-switched voice services. Figure 5.7
illustrates a contextual view of the elements of a heterogeneous network with the framework of
LTE SAE.
A web of information pervades around the human context of routine, recreation, rejuvena-
tion, and research in mobile world. e information is embedded in things around us per-
taining to virtually every aspect of human endeavor. ese things—such as food, clothing,
automobiles, planes, trains, ...