Network enablers for enhanced mobility management

The proliferation of network access technologies and the increased mobility of end users bring new challenges to operators who are willing to support their subscribers with seamless and context-aware services. This paper reviews the requirements that these challenges generate, focusing on the issues that are not entirely addressed by existing mobility protocols, the IMS set of specifications or by the IEEE802.21 standardisation efforts. A set of network enablers for enhanced mobility management addressing these issues is then proposed with an explanation of their positioning within future IMS-based mobility architectures.

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