Cellular IP

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Cellular IP is a network protocol standard that is still not widely used and provides routing functionality for mobile subscribers in IP networks.

This enables hierarchical routing in cooperation with Mobile-IP . While Mobile-IP manages large-scale changes in the location of a host ( macro-mobility ), Cellular-IP is intended for routing in radio access networks, where frequent changes between access points occur ( micro-mobility ). This hierarchical division increases efficiency because the home agent , which may be very far away , does not have to be contacted every time in the event of small-scale location changes and the associated change of radio cells .

Essential elements of the Cellular IP are:

  • Paging caches : These are used to search for mobile subscribers and are kept up to date by so-called paging update packets .
  • Routing caches : These are used to route the data to the mobile subscriber and are updated using route update packet .

The HAWAII protocol ( Handoff-Aware Wireless Access Infrastructure ) from Alcatel-Lucent follows a similar approach .

Web links

Cellular IP: A New Approach to Internet Host Mobility (English) (PDF; 73 kB)