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