–support public and private environments
–operation in, and roaming between, different operating
environments
•sparse, rural, suburban, urban
•indoor/outdoor
•residential/business
•pedestrian/vehicular
–provide integrated satellite component
–combine range of existing wireless systems (cellular,
cordless, mobile data, paging) to share
infrastructure costs and harmonize services
–allow flexible and rapid creation of new services
–efficient usage of spectrum resources
–enable provision of wireless local loop