EE 548

Mobility Management in Cellular Networks

Location management

•Location updates: mobile to network•Paging: network to mobile•Location information dissemination: within network

Mobility management references

• Pahlavan an d Krishnamurthy, Principles of Wireless Networks, Prentice Hall, 2002

Handoff management

1. Handoff decision initiation2. Connection rerouting

Handoff considerations

•Cellular: network controls the handoff•WLAN: mobile controls the handoff

Handoff management process

(VLR)

(HLR)

Separate signaling network used for call management