An eXtensible Service Protocol for Adaptive Personal Mobile Communication

Abstract

Personal Mobile Communication services are no longer limited by connection-oriented network access to the services that network service nodes are able to offer. Given the ability to deliver services using end-to-end IP connectivity – notably over wireless links – will cause services to move out to the mobile end-devices. In addition, IP enables us to use multiple services over the same link. Consequently, we need ways to enable the enddevices to deal with the greater degrees of freedom, when our personal communication allows us to use any combination of services that may be running in other enddevices. With short-range radio links, our need to make use of and deal with spontaneous connectivity increases even further. In this paper, a novel eXtensible Service Protocol (XSP) is described. After examining its properties, we look at how it can enable ad-hoc mobile applications, as well as enabling adapting applications to the conditions and context of the communication. 1