IMS Aggregate Endpoint Service Differentiation
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Solution Overview
Problem
Current Internet Protocol Multimedia Subsystem (IMS) networks lack the capability to provide differentiated services to different users or groups of users, particularly in scenarios requiring individual line side treatment for Fixed Mobile Convergence (FMC), as Private Branch Exchanges (PBXs) receive undifferentiated trunk side services and are supported as aggregate endpoints with a single set of services.
Innovation Solution
The method differentiates between users or groups of users within an IMS network based on identifiers, which indicate specific service profiles, allowing for the provision of distinct services for packet transmission and receipt, enabling tailored services for both trunk side and line side operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PBXs are supported as aggregate endpoints receiving one set of services, then network simplicity is maintained, but service differentiation capability is lost
Solution Approach 1:
The patent segments users into different groups (e.g., sales users, executive users, other users) with distinct service profiles. Each user group receives differentiated services through separate service flow configurations in the P-CSCF, allowing individual line side treatment while maintaining aggregate endpoint support for PBXs.
Solution Approach 2:
The patent introduces a new dimension of service differentiation by implementing multiple service flows within a single aggregate endpoint context. The P-CSCF maintains multiple service flow configurations (first service flow for sales/executive users, second service flow for other users) and dynamically selects appropriate flows based on user identification, enabling service differentiation without creating separate physical endpoints.
2Adaptability or versatility
If individual line side treatment is provided for subset of users, then service customization is improved, but processing complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple service flow configurations in the P-CSCF before runtime. Each service flow is pre-defined with specific treatment rules for different user groups (e.g., FMC services for sales/executive users, standard services for other users). When a call arrives, the P-CSCF simply matches the user identifier against pre-configured flows and applies the corresponding service treatment, avoiding complex real-time processing decisions.
3Adaptability or versatility
If multiple service flows are configured in P-CSCF, then service differentiation is achieved, but configuration complexity increases
Solution Approach 1:
The patent uses parameter changes to manage configuration complexity. Each service flow configuration is defined by specific parameters including user group identifiers, service type indicators, and treatment rules. The P-CSCF configuration system allows administrators to define these parameters in a structured format, enabling service differentiation through parameter-based configuration rather than complex procedural logic. Service flows can be enabled or disabled by changing configuration parameters without restructuring the entire system.
Data Source
AI summary
Different services are provided to different users or groups of users of an aggregate endpoint in an internet protocol multimedia subsystem (IMS) network. The different users or groups of users are differentiated based on service profiles designated by different PUIDs for the different users or groups of users of each of the users or groups of users. Different services for transmission and/or receipt of packets for the different users or groups of users of the aggregate endpoint are provided, depending upon the differentiation between the different users or groups of users.