This letter analyzes and describes enhancements and evolutions of the paging mechanisms necessary to satisfy the needs of an evolving world of converged and pervasive connectivity. The new requirements derive from the massive adoption of wireless Internet Protocol (IP) networks for fixed, nomadic, or mobile access. The proposed improvements have been classified as either service/application-related enhancements (e.g., applications aware of idle mode/secured paging requests) or access-related enhancements (e.g., ubiquitous use of different radio technologies, tight coupling with the content broadcast infrastructure, and femtocell deployments). The evolution must be designed with care to allow secure and efficient idle mode support, taking into account the latency and terminal reactivity that are acceptable by the different types of applications, the potentialities offered by multicast/ broadcast delivery of services, and the advantages of environments where multiple radio access technologies are available. Β© 2008 Alcatel-Lucent.
idle mode paging mechanisms well adapted to the new generation of wireless networks and converging connectivity.
Service/Application-Related Enhancements
Initially designed to work in a voice/real time/mobile context, idle mode schemes have to evolve in order to maintain efficiency while deployed across a wide range of wireless technologies and deployments dominated by packet-based services. The sections following present enhancements related to the support of applications and services.
Application Awareness
The state of the art in idle mode support allows the terminal to tell the network which applications are allowed to activate it. For instance, in WiMAX [4], the terminal provides the list of paging-enabled