Location Management: The Problem

• Rapid growth in worldwide cellular subscriber base
  • Limited spectrum leads to smaller radio cells, to support given subscriber density
  • Personal Communication Systems (PCS) use lower power and smaller cells, to support higher subscriber densities
  • Smaller cells lead to increased signaling for location management
• Location management allows incoming calls to be routed to mobile subscribers
  • No location information is required by the network for mobile-originated calls
  • For mobile-terminated calls, the mobile terminal must somehow be alerted

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