IMS Media Content Access via SIP Routing
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Solution Overview
Problem
Existing systems for providing media content to users on communication terminals require separate proprietary access control mechanisms for each content server, leading to significant overhead in user authentication, registration, and access control, with inconsistent solutions and the need for data repositories to manage user access rights.
Innovation Solution
The system utilizes the Session Initiation Protocol (SIP) and Call Session Control Function unit to route requests for media content through the IMS, leveraging IMS's filtering features for user authentication and access control, eliminating the need for separate access control mechanisms and data repositories, and allowing flexible content access through defined IMS features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate proprietary access control mechanisms are implemented for each content server, then user authentication and access control can be controlled individually, but system complexity and overhead increase significantly
Solution Approach 1:
The patent implements a universal access control mechanism using SIP messages that can be applied across multiple content servers and portal servers. The SIP-based authentication framework provides a single standardized interface that replaces numerous proprietary solutions, allowing the same mechanism to serve multiple functions across different servers and content types.
Solution Approach 2:
The patent merges access control functionality into the existing SIP communication framework rather than maintaining separate authentication systems. By combining authentication, authorization, and content access control into a unified SIP message routing mechanism, the system reduces overall complexity while maintaining comprehensive access control capabilities.
2Adaptability or versatility
If proprietary data repositories are maintained for each portal server and content server, then user registration and access rights can be managed, but maintenance overhead and resource requirements increase
Solution Approach 1:
The SIP-based system provides a universal user identification and access rights management mechanism that works across multiple portal servers and content servers. Instead of maintaining separate data repositories at each server, the system uses SIP message routing and filtering based on user identity and access rights, reducing redundant data storage and maintenance requirements.
3Reliability
If multiple authentication and registration systems are deployed across numerous portal servers, then user access can be controlled, but the overhead for implementation and maintenance becomes enormous
Solution Approach 1:
The patent combines multiple authentication and registration systems into a single SIP-based framework. By merging these functions into the existing SIP communication infrastructure, the system eliminates the need for separate authentication mechanisms at each portal server, significantly reducing implementation and maintenance overhead while maintaining reliable user authentication.
Solution Approach 2:
The SIP message acts as an intermediary that carries authentication and access control information between users, portal servers, and content servers. This intermediary mechanism standardizes the authentication process and eliminates the need for direct, proprietary authentication implementations at each server, improving implementation efficiency across the system.
Data Source
AI summary
A central terminal may receive from a user a first message, which may be transmitted from a communication terminal, identifying particular media content on a particular content server, and in response the central terminal may transmit a second message to a particular application server if the central terminal determines that the first message is associated with the application server. The application server may generate and transmit to the communication terminal accessing information that may be used by the user to retrieve, via the communication terminal, the media content from the content server. Submitting content requests in this manner may enable routing content requests through a particular system, such as IP Multimedia Subsystem (IMS), thereby making use of filtering features of the particular system for user authentication and access control, and obviating need for separate proprietary access control mechanisms for the content server.