Regenerative Signaling for Transparent Network Service Control
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Solution Overview
Problem
Existing mechanisms for accessing network-based services in IP multimedia subsystem (IMS) networks, such as streaming video content, require SIP-UA integration and prevent the use of third-party software due to limitations in SIP signaling traversal, and wireless terminals supporting RTSP are unable to utilize services controlled by other protocols.
Innovation Solution
The implementation of regenerative signaling capabilities that generate companion protocol messages from base protocol messages, allowing network services to be controlled transparently to service endpoints, using client-side and server-side proxies to enable synchronization and utilization of network services without requiring endpoint enhancements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If SIP-UA integration is required for accessing network-based services, then network service control is achieved, but device complexity increases and third-party software integration is prevented
Solution Approach 1:
The patent introduces a protocol translator as an intermediary component that converts RTSP messages to SIP messages and vice versa. This mediator enables RTSP-based service endpoints to access SIP-controlled network services without requiring integration of SIP-UA functionality into the endpoints themselves, thus reducing device complexity while maintaining network service control capability
Solution Approach 2:
The patent segments the protocol handling functionality by separating the RTSP signaling path from the SIP service control path. The protocol translator handles the conversion between these two protocol domains, allowing service endpoints to remain simple RTSP clients while still accessing sophisticated SIP-based network services through the intermediary translation layer
2Speed
If RTSP signaling path does not traverse network components, then real-time streaming capability is maintained, but network-based services controlled by SIP cannot be utilized
Solution Approach 1:
The protocol translator serves as a bridge between the RTSP signaling path (which maintains real-time streaming capability) and the SIP-controlled network services. It intercepts RTSP messages, translates them to SIP messages for network service control, and translates response SIP messages back to RTSP messages, thereby enabling RTSP clients to access SIP-controlled services without compromising real-time streaming performance
Solution Approach 2:
The patent adds a dimensional layer of protocol translation between the RTSP signaling dimension and the SIP service control dimension. This additional dimension allows both protocols to coexist and interact, enabling RTSP-based real-time streaming to leverage SIP-based network service control capabilities through the translation intermediary
3Reliability
If SIP proxies are used for session control, then network service control is achieved, but signaling complexity increases
Solution Approach 1:
The protocol translator acts as an intermediary that manages the complexity of protocol conversion between RTSP and SIP. By encapsulating the translation logic in this dedicated component, the patent isolates the signaling complexity from the service endpoints, allowing them to operate with simpler, protocol-specific clients while still benefiting from comprehensive network service control
Data Source
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AI summary
The invention includes a method and apparatus for regenerative signaling. Specifically, the method includes receiving at least one base protocol message formatted in accordance with at least one base protocol, obtaining service information associated with at least one network service, and generating, in response to the at least one base protocol message, at least one companion protocol message formatted in accordance with at least one companion protocol. The at least one base protocol message is associated with at least one service endpoint. The service information associated with at least one network service is obtained using the at least one base protocol message. The at least one companion protocol message is generated using at least a portion of the service information. The at least one companion protocol message is operable for controlling the at least one network service in a manner substantially transparent to the at least one service endpoint.