IP Multimedia Subsystem

About: IP Multimedia Subsystem is a research topic. Over the lifetime, 4398 publications have been published within this topic receiving 43698 citations.

System and method for providing IP-based service in a communication system

Abstract: A system and method for providing an Internet Protocol (IP)-based service in a communication system are provided. In an IP Multimedia Subsystem (IMS) communication system, a menu server generates a service object based on service capability information of a subscriber received from a service provider, and a terminal activates the service object received from the menu server so that the subscriber can easily use services. The user can select one of services from a service menu displayed on the terminal and immediately implement the selected service.

Multi-level specification and protocol design for distributed multimedia communication

Abstract: The major challenge in the design of an efficient distributed multimedia system is the integration and support of a wide variety of applications. Investigating the basic issues involved in the design and specification of distributed muttimcdia systems is the focus of this paper. A basic layered network architecture is proposed as the uniform framework for the investigation of different levels of functionality typically associated with the communication network that supports multimedia communication. Within this framework, we propose to identify the communication requirements for multimedia applications and characterize a set of communication primitives which specify different qualities of scrvicc to reflect different real-time rcquircmcnts. ‘Ilis investigation is guided by an efficient and flexible multi-level specification model. We will characterize this model and show that the model can be amenable to the construction of a set of communication primitives that support synchronization and communication of multimedia applications.

A Framework for IoT Objects Management Based on Future Internet IoT-IMS Communication Platform

Abstract: In recent years, with the continuing growth and development in mobile communication technologies, the number of mobile devices and network connected equipment are increasing quickly. Objects/Things in daily life are given the capability to achieve environment sensing and network connectivity. Internet of Thing is the best usage and application of mobile computing and ubiquitous service. There are more and more possible applications while things can communicate with each other. However, there are lacks of rules or specifications for things naming. A framework for IoT object management and naming is proposed based on the future Internet IoT-IMS communication platform. The communications to Internet of Things (IoT) objects can be easily accomplished through the proposed IoT-IMS (IP Multimedia Subsystem) URI (Uniform Resource Identifier). The framework is implemented by integrating with previous future Internet IoT-IMS communication.

Third party call control of all phones

Abstract: A system and method for call control wherein a call received at a communication device may be controlled through an IP device connected to an IP network over which at least a portion of the call was routed. The IP device is connected to the IP network via a control gateway.

Method and system to release internet protocol (ip) multimedia subsystem (ims) session initiation protocol (sip), ip-connectivity access network (ip-can) and radio access network (ran) networking resources when ip television (iptv) session is paused

Abstract: A user equipment (UE), comprising at least one component configured to support controlling a media stream and modifying Internet Protocol-Connectivity Access Network (IP-CAN)/Radio Access Network (RAN) and Internet Packet (IP) Multimedia Subsystem (IMS) media resources, wherein the IP-CAN/RAN and IMS media resources are modified using a Session Initiation Protocol (SIP) RE-INVITE request to an IMS network, and wherein the media stream is controlled using a Real Time Streaming Protocol (RTSP) request to a media server. Also included is a UE comprising at least one component configured to support a method comprising sending a RTSP request to a signaling/control server in communications with a media server to control a media stream, wherein a SIP RE-INVITE request associated with the RTSP request is further sent from the UE or the signaling/control server to an IMS network to modify media resources associated with the media stream.