Abstract:
A system and method for allowing legacy circuit switch user equipment (CS UE) to operate via a packet switch system, such as an IP Multimedia Subsystem (IMS) system, is provided. The mobility and session control aspects of communications with the legacy CS UE is separated. A user agent is placed in the receiving node (e.g., a home node B) that acts as the SIP agent for the CS UE for session control. An interworking function is provided to allow mobility between the macro CS network and the PS (e.g., IMS) network. Hand-back and hand-in procedures with service continuity are also provided.
Abstract:
A request is originated by a mobile station, wherein the request contains information relating to both packet-switched communication and circuit-switched communication of data in a session. The request is originated by the mobile station in response to detecting that a transfer is to be performed from a source packet-switched access network to a target network in which different parts of the session is to be communicated in the packet-switched domain and circuit-switched domain. The transfer is completed using the information in the first request.
Abstract:
The present invention allows calls that are controlled by a multimedia subsystem (MS) to employ bearer paths that are supported in whole or in part by a circuit-switched subsystem (CS). As such, calls controlled by the MS can have a portion of the bearer path provided through the CS when needed or desired. To facilitate such control, a session control signaling path is established between a user element currently supported by the CS and a remote user agent (RUA), which represents the user element in the MS. While a portion of the bearer path for the call is supported by the CS, the session control signaling path extends the reach of the MS to the user element.
Abstract:
A system and method for allowing legacy circuit switch user equipment (CS UE) to operate via a packet switch system, such as an IP Multimedia Subsystem (IMS) system, is provided. The mobility and session control aspects of communications with the legacy CS UE is separated. A user agent is placed in the receiving node (e.g., a home node B) that acts as the SIP agent for the CS UE for session control. An interworking function is provided to allow mobility between the macro CS network and the PS (e.g., IMS) network. Hand-back and hand-in procedures with service continuity are also provided.
Abstract:
A system and method is provided for remote session control of IP Multimedia Subsystem (IMS) sessions. A remote media flow may be established as part of an origination process wherein the controller UE requests that the media flow is established on a remote media UE as part of the origination request. A remote media flow may also be established as part of a termination process wherein the controller UE identified in the termination request identifies a remote media UE on which a remote media is to be established. Embodiments also allow for the session control to be transferred from a first device to a second device, while maintaining one or more media flows on the first device.
Abstract:
In general, the present invention provides for a direct inter-subsystem transfer of an active communication session, such as a call, between a packet subsystem (PS) and a circuit-switched subsystem (CS) in an efficient and effective manner while maintaining service control and continuity. Further, the inter-subsystem transfer may take place between a PS of one generation and a CS of another generation.
Abstract:
A system and method is provided for remote session control of IP Multimedia Subsystem (IMS) sessions. A remote media flow may be established as part of an origination process wherein the controller UE requests that the media flow is established on a remote media UE as part of the origination request. A remote media flow may also be established as part of a termination process wherein the controller UE identified in the termination request identifies a remote media UE on which a remote media is to be established. Embodiments also allow for the session control to be transferred from a first device to a second device, while maintaining one or more media flows on the first device.
Abstract:
A system and method for shared multimedia experiences across multiple subscriptions are provided. A method for application server operations includes receiving a first message from an application server, the first message including a request to initiate a collaborative session with a first communications device and a second communications device, examining a first profile of the first communications device and a second profile of the second communications device, establishing the collaborative session with the second communications device based on the first profile of the first communications device and the second profile of the second communications device, and sending a second message to the application server, the second message including information regarding the collaborative session.
Abstract:
A system and method for allowing legacy circuit switch user equipment (CS UE) to operate via a packet switch system, such as an IP Multimedia Subsystem (IMS) system, is provided. The mobility and session control aspects of communications with the legacy CS UE is separated. A user agent is placed in the receiving node (e.g., a home node B) that acts as the SIP agent for the CS UE for session control. An interworking function is provided to allow mobility between the macro CS network and the PS (e.g., IMS) network. Hand-back and hand-in procedures with service continuity are also provided.
Abstract:
The present invention discloses a node (207, 217) for achieving co-existence of single radio voice call continuity, SR-VCC, solutions in a communication system between a source cell of a first radio access network that supports packet switched voice and a target cell of a second radio access network that supports at least circuit switched voice. The node (207, 217) is operable to perform bearer splitting by separating voice bearers from non-voice bearers based on information about support for dual transfer mode, packet switched handovers and voice over internet protocol related enhancements in the target cell.