IMS User Plane Control via Media-Type Routing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current IMS systems lack granular control over user plane resource usage, particularly in scenarios where users are roaming, as they can only allow or disallow local breakout between the home and visited networks without considering specific media types or access technologies.
Innovation Solution
Implementing a serving entity, such as an S-CSCF, that determines the access network and media type of incoming session requests, allowing for dynamic decision-making on media path handling based on roaming status, media type, and operator/service provider policies, enabling local breakout control on a session basis and enforcing correct media/application use per access network technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If local breakout is allowed in IMS roaming scenarios, then routing efficiency is improved, but control over user plane resource usage becomes insufficient
Solution Approach 1:
The patent applies local quality by making the user plane path selection media-type specific rather than applying a single path rule to all traffic. Different media types (voice, video, data) can have different local breakout configurations, allowing granular control over specific traffic flows while maintaining routing efficiency for each media type independently
Solution Approach 2:
The patent segments the user plane control into media-type-specific paths. Instead of a single unified user plane path for all traffic, the system creates separate path configurations for different media types, enabling independent optimization and control of each media type's routing behavior in roaming scenarios
2Device complexity
If a single user plane path is used for all media types, then system complexity is reduced, but adaptability to different media requirements is lost
Solution Approach 1:
The patent implements dynamics by making the user plane path selection adaptive to the media type. The system dynamically determines the appropriate user plane path based on the specific media type being transmitted, allowing the routing behavior to change and adapt to different media requirements rather than using a static single path for all traffic
Solution Approach 2:
The patent applies parameter changes by using the media type as a determining parameter for user plane path selection. The media type parameter directly influences which user plane path is chosen, allowing the system to adjust routing behavior based on the specific characteristics and requirements of each media type
Data Source
AI summary
From a user a request for a session is received. Information on an access network via which the request is received is determined. A media type or an application requested in the request is determined. A decision on media path handling is made based on the information on the access network determined and the media type or the application determined.