Mobile telephony

About: Mobile telephony is a research topic. Over the lifetime, 38008 publications have been published within this topic receiving 553646 citations.

The Compass Acceptance Model for the analysis and evaluation of mobile services

Abstract: User acceptance is increasingly regarded as a critical success factor for mobile services. Although several acceptance models exist and help to increase understanding the different influencing factors on user acceptance, they are not suitable to support the development of mobile services. This paper introduces the Compass Acceptance Model (CAM), which is especially designed for the analysis and evaluation of the user acceptance for mobile services. Fundamental design criteria are the applicability during the whole product life cycle, a balanced consideration of relevant influencing factors, the use as a permanent controlling instrument and the adaptability to the individual requirements of a service. The CAM helps to verify the perception concerning user acceptance or to understand the user (types of users and behaviour patterns) and the implication of service design better. The insights assist in considering explicitly the user acceptance in the design of a mobile service.

Stochastic geometry models of mobile communication networks

Abstract: This paper proposes a new approach for modeling of mobile communication networks. The main tools are point processes and stochastic geometry. We show how several performance evaluation problems within this framework can actually be posed and solved by computing the mathematical expectation of certain functionals of point processes. We analyze models based on Poisson point processes for which analytical formulae can often be obtained. In particular, we obtain distributions of the number of mobiles with call in progress in a base station cell and the number of such mobiles passing the boundary of the cell.

Method and apparatus for defining and updating mobile services based on subscriber groups

Abstract: New services and/or new subscribers are efficiently and flexibly defined and added to a mobile communications network using service groups and service group identifiers. One or more groups of mobile subscribers are defined, and a group identifier is assigned to each member of the group. One or more services are established for the group of mobile subscribers and are associated with the group identifier. In particular, the group identifier links each member of the group with the established services. Using this service group approach, existing mobile communications system nodes are readily updated with new service and subscriber information. Likewise, subscriber service information may be easily restored to corrupted mobile databases. Advantageously, the signaling and time required to perform location update procedures as mobile units move between different location areas in a mobile communications system are considerably reduced.

Modeling and Characterizing User Experience in a Cloud Server Based Mobile Gaming Approach

Abstract: With the evolution of mobile devices and networks, and the growing trend of mobile Internet access, rich, multiplayer gaming using mobile devices, similar to PC-based Internet games, has tremendous potential and interest. However, the current client-server architecture for PC-based Internet games, where most of the storage and computational burden of the game lies with the client device, does not work with mobile devices, constraining mobile gaming to either downloadable, single player games, or very light non-interactive versions of the rich multi-player Internet games. In this paper, we study a cloud server based approach, termed Cloud Mobile Gaming (CMG), where the burden of executing the gaming engines is put on cloud servers, and the mobile devices just communicate the users' gaming commands to the servers. We analyze the factors affecting the quality of user experience using the CMG approach, including the game genres, video encoding factors, and the conditions of the wireless network. Based on the above analysis, we develop a model for Mobile Gaming User Experience (MGUE), and develop a prototype for real-time measurement of MGUE that can be used in real networks. We validate MGUE model using controlled subjective testing, and then use it to characterize user experience achievable using the CMG approach in wireless networks.

System and method for mobile transactions using the bearer independent protocol

Abstract: A system (100) for performing mobile transactions includes a mobile communication device (110) connecting to a server device 140 via a first network (90). The mobile communication device (110) includes a subscriber identification module (SIM) card slot (111) and a virtual subscriber identification (VSIM) interface (121) connected to the SIM card slot (111) and it provides subscriber identity authentication to the server device (140) via the VSIM interface (121). The mobile communication device (110) further includes a mobile transaction client application (120) for managing the communication between the mobile communication device (110) and the server device (140). The mobile transaction client application (125) manages the communication between the mobile device (110) and the server device (140) utilizing the Bearer Independent Protocol as defined in the European Telecommunications Standards Institute document ETSI TS 101 267 (3GPP TS 11.14).