Abstract: A system, method and computer program product are provided for delivering media content. The system includes at least one recipient that may be associated with at least one recipient rule. The system also includes a sending entity capable of transmitting a multimedia message addressed to the recipients. The sending entity can also specify delivery rules in the message. In this regard, the multimedia message includes media content. The system further includes a network entity capable of receiving the multimedia message and identifying any recipient rules, sending entity rules and/or network rules associated with the multimedia message. The network entity can then deliver the media content to the recipients based upon respective rules. The network entity can also be capable of processing the media content based upon the rules before delivering the media content, such as by transcoding or truncating at least a portion of the media content prior to delivery.

Abstract: A receiver-driven layered multicast rate control protocol technique includes receiving an information flow consisting of a group of different layers and detecting traffic congestion and cessation of traffic congestion. One or more of the group of different layers are dropped upon the detection of traffic congestion and one or more of the group of different layers are added upon the detection of cessation of traffic congestion. The dropping consists of forwarding a pause message to an upstream multicast router to instruct the upstream multicast router to discard packets and the adding consists of forwarding a resume message to the upstream multicast router to instruct the upstream multicast router to transmit packets. The adding and dropping may be performed by a local receiver downstream of the multicast router and one or more of the group of different layers may be added or dropped simultaneously in a single operation.

Abstract: A method supporting relocation of an Internet Protocol session during a network layer handover is provided. Application context information is sent to a device. The application context information indicates activities to be executed pro-actively before a network layer handover and includes a requested communication requirement. A first message is received from the device that includes a first indicator indicating whether or not the device can satisfy the requested communication requirement. If the first indicator indicates that the device cannot satisfy the requested communication requirement, the application context information is sent to another device, and a second message is received from the other device. The second message includes a second indicator indicating whether or not the other device can satisfy the requested communication requirement.

Abstract: An arrangement and a method is provided for discovering candidate access routers in a mobile IP (Internet Protocol) network to enable seamless IP handover of a mobile node between access routers. A server element (19), which is separate from the access routers (11, 12) and the mobile node (MN), is provided with access router information relating to one or more access routers and with information identifying the access router serving the mobile node and reachability information about one or more access routers other than the serving access router that are within reach to the mobile node. The address of at least one of said one or more access routers within reach to the mobile node is determined in the server element on the basis of the provided information.

Abstract: Systems and methods are provided for providing access controlled event subscription and notification and event access change alerts. In some embodiments, the systems and methods of the present invention operate within a SIP infrastructure. As such, SIP SUBSCRIBE messages and SIP NOTIFY messages are used for subscribing to and receiving notifications related to access control. According to some embodiments, event access change alerts are used in conjunction with access controlled event subscription to provide an efficient method for providing access controlled event subscription using current access control information.

Abstract: Systems and methods are provided for providing access controlled event subscription and notification and event access change alerts. In some embodiments, the systems and methods of the present invention operate within a SIP infrastructure. As such, SIP SUBSCRIBE messages and SIP NOTIFY messages are used for subscribing to and receiving notifications related to access control. According to some embodiments, event access change alerts are used in conjunction with access controlled event subscription to provide an efficient method for providing access controlled event subscription using current access control information.

Abstract: Service provisioning in mobile terminals is provided through registering and transferring of application context, which permits substantially seamless transfer of application functionality across administrative service domains. An architecture for providing application context transfer may include access routers, transcoder proxy servers, and gateway routers. A mobile terminal served by a current access router creates an application context for a session and registers it with the current access router. Around the time of handoff, the current access router transfers the application context to a new access router associated with a new administrative domain and a new access network. The new access router evaluates the application context and takes steps to provide application functionality for the mobile terminal and current sessions.

Abstract: An event notification system includes a data communications network (18), at least one event server (20) coupled to the data communications network and at least one subscriber (12) coupled to the data communications network. The subscriber is operable to send a subscribe message to the event server, the subscribe message containing information for specifying at least one application semantic. The event server is operable to generate a first notification to the subscriber upon the at least one application semantic being satisfied and to generate a second notification to the subscriber upon a change in the specified application semantic, thereby enabling an occurrence of a substitution of the specified application semantic with another application semantic.

Abstract: A method and apparatus for controlling handover between a first technology network and a second technology network by detecting information about regions of an area of the first technology network, and deciding whether to initiate a handover procedure between the first and second technology networks based on the detected region information.

Abstract: A system is provided for multipoint service (e.g., web service) invocation includes a plurality of event servers and a proxy. The event servers are associated with a group address representative of at least one characteristic of the event servers, and are also associated with at least one contact address. The proxy is capable of receiving a request for invocation of a service, where the request is addressed to the group address. In response to receiving the request, the proxy is capable of mapping the group address to at least one contact address associated with the event servers, and forwarding the service invocation request to the event servers based upon the at least one contact address. In turn, the event servers are capable of receiving the service invocation request and separately invoking the requested service.

Abstract: A system, method and filter are provided for restricting event subscriptions. The system includes an event server, such as a session initiation protocol (SIP) event server, capable of maintaining at least one event. Also, the system includes a network entity, such as a requester, capable of sending a subscription message, such as a SIP SUBSCRIBE message, subscribing to the event. Further, the system includes a proxy, such as an SIP proxy, associated with the event server, and in coupled between the event server and the network entity. In this regard, the proxy is capable of receiving the subscription message. The system also includes a filter capable of receiving the subscription message from the proxy. Thereafter, the filter can determine whether the network entity is an authorized subscriber. Then, if the network entity is an authorized subscriber, the proxy can forward the subscription message to the event server.

Abstract: A method for performing Internet call processing related to the completion of session initiation requests is provided. The session initiation requests include one or more triggers. Based on the detection of one or more triggers, a call processing entity involved with processing the session initiation request transfers call processing to one or more third parties. Each third party performs additional call processing and returns a result to the call processing entity. Based on reception of the result, the call processing entity continues processing the session initiation request. The URI of one or more third parties may be specified in the session initiation request. Also, one or more third parties may be pre-specified. A special trust relationship may exist between a terminal related to the session initiation request and one or more third parties, and the third parties may therefore perform call processing using context specific information or confidential information.

Abstract: A solution for supporting relocation of an IP session of a mobile node during a network layer handover in a mobile communication system. In the method, from the application context information on the mobile node is detected a first set of capabilities of a network node that that facilitate maintaining the IP session. This first set of capabilities is queried from one or more potential next network node. Applicability of the potential next network node to the relocation of the IP session is determined by the capability information on the first set of capabilities.

Abstract: The present invention provides a relocation of content sources that provide media content to a mobile terminal (mobile node) when a network layer-level handoff occurs. The relocation of content sources enables the mobile terminal to seamlessly execute an application that utilizes the media content from a current content source before the handoff and from a new content source after the handoff. The mobile terminal registers with a current access router in order to inform the access router about application context information. The current access router informs a new access router about the impending handoff. The new access router consequently discovers the new content source.

Abstract: A system for invoking a service includes an invoking entity and a network entity such as a service provider. The invoking entity can send a service invocation request to effectuate invocation of a service. The service invocation request is formatted and sent in accordance with a given messaging architecture (e.g., SOAP). The network entity is capable of receiving the service invocation request, such as to invoke the requested service. The network entity can also send a response to the service invocation request, although the response is sent across a SIP architecture. Similar to the service invocation request, the response includes a payload formatted in accordance with the given messaging architecture. Thus, although the network entity can send a response across a SIP architecture, the invoking entity sends the service invocation request independent of the SIP architecture.

Abstract: An apparatus and method is provided for facilitating the seamless handoff of IP connections between access routers in an IP network. The mobile IP network includes two or more access routers each serving a different geographic service area. When a mobile terminal moves from the first service area to the second service area, the mobile terminal transmits to the second access router the IP address of the previous access router. The second access router uses this information to learn capabilities of the first access router (e.g., bandwidths supported, security schemes, and the like) for use in future handoff decisions, and exchanges capability information with the first access router. The assumption is made based on the exchanged information that the access routers are geographically proximate.

Abstract: A method supporting relocation of an Internet Protocol session during a network layer handover is provided. Application context information is sent to a device. The application context information indicates activities to be executed pro-actively before a network layer handover and includes a requested communication requirement. A first message is received from the device that includes a first indicator indicating whether or not the device can satisfy the requested communication requirement. If the first indicator indicates that the device cannot satisfy the requested communication requirement, the application context information is sent to another device, and a second message is received from the other device. The second message includes a second indicator indicating whether or not the other device can satisfy the requested communication requirement.

Abstract: A method and a system provide a service for a user device with a service provider. The method includes establishing a service provisioning relationship between the user device and a bridging user device through a first wireless network (e.g., a Bluetooth network); providing a desired service for the user device with the service provider via the bridging user device and the first wireless network, and through a second wireless network (e.g., a cellular network) that couples the bridging user device to the service provider; while providing the service, recording charging data for the service provisioning relationship between the user device and the bridging user device; and reporting the charging data from the bridging user device to the service provider. In the preferred embodiment at least the establishing and recording functions use service provider trusted software running on the user device and on the bridging user device.

Abstract: A method for supporting relocation of an IP session during a network layer handover in a mobile communication system. In the method, application context information indicating activities that are advantageously executed pro-actively before the network layer handover is sent. The indicated activities are then pro-actively executed in a receiving network node. An advantage of the method and arrangement of the invention is that the pro-active actions, including pre-allocation of some critical resources for seamless handover of an ongoing IP session, facilitate timely implementation of the activities required for handing over an IP session, and/or selection of a target access router.

Abstract: An apparatus and method is provided for facilitating the seamless handoff of IP connections between access routers in an IP network. The mobile IP network includes two or more access routers each serving a different geographic service area. When a mobile terminal moves from the first service area to the second service area, the mobile terminal transmits to the second access router the IP address of the previous access router. The second access router uses this information to learn capabilities of the first access router (e.g., bandwidths supported, security schemes, and the like) for use in future handoff decisions, and exchanges capability information with the first access router. The assumption is made based on the exchanged information that the access routers are geographically proximate.