Diameter Proxy Agent Session Binding for Diverse LTE Messages
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Solution Overview
Problem
Current telecommunications networks face challenges in handling and binding multiple related messages with different information sets, particularly in the context of the 3GPP's LTE network, where the existing specifications assume uniformity in message information, leading to inefficiencies in message association and session management.
Innovation Solution
A method implemented by a Diameter Proxy Agent within a Policy and Charging Rules Node (PCRN) to associate multiple messages from diverse sources by using Session Binding Identifiers (SBIs), forwarding messages to the appropriate PCRN blade when the SBIs are associated with the same subscriber profile, enabling dynamic binding and session management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the system uses uniform message information assumption as per 3GPP specifications, then message handling follows standard procedures, but the system cannot handle messages with different information sets from diverse sources
Solution Approach 1:
The patent changes the binding criterion from requiring uniform message information sets to using Session Binding Identifiers (SBIs) that can be extracted from messages with different information structures. This parameter change allows the system to handle diverse message formats while maintaining association capability through the common SBI element.
Solution Approach 2:
The patent creates a universal binding mechanism using SBIs that work across multiple message types and sources. The SBI acts as a common identifier that can bind messages regardless of their specific information content, enabling the system to handle various message formats through a single unified approach.
2Reliability
If the system binds messages based on complete information matching, then accurate association is achieved, but messages with different information sets cannot be bound
Solution Approach 1:
The patent extracts the essential binding information (SBI) from messages without requiring complete information matching. By taking out only the necessary SBI element needed for association, the system achieves reliable message binding while accommodating messages with different information sets from diverse sources.
3Ease of operation
If the system processes each message independently, then processing simplicity is maintained, but related messages from the same subscriber profile are not associated
Solution Approach 1:
The patent implements a feedback mechanism where the system checks whether an SBI from an incoming message is already bound to a session. This feedback loop allows the system to maintain simple processing procedures while ensuring that related messages are properly associated with the correct subscriber profile through the binding check and redirection logic.
Data Source
AI summary
Various exemplary embodiments relate to a method and related network node and machine-readable storage medium including a policy and charging rules node (PCRN) receiving a plurality of related service requests from different devices. The PCRN may proceed to generate a policy and charging control (PCC) rule based on at least one service request and other information stored in the PCRN if a mate service request does not arrive during the duration of a waiting timer. If the mate service request arrives subsequent to the expiry of the waiting timer, the PCRN may then generate a subsequent PCC rule to replace the previously generated rule, with the new PCC rule incorporating information from both of the mate service requests.