Policy Data Subscription Notification Control in 5G Networks
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Solution Overview
Problem
Current subscription procedures for policy data changes in PLMN environments are inefficient, leading to unnecessary signaling and network overload, particularly due to the lack of proper notification control for OperatorSpecificData and PlmnUePolicySet resources, which results in inconsistent behavior and potential misuse of subscription services.
Innovation Solution
The proposed solution modifies the PolicyDataSubscription data structure to exclude PolicyDataSubscriptions and IndividualPolicyDataSubscription resources from triggering notifications and introduces new attributes in the PolicyDataChangeNotification data type, including opSpecData, plmnId, and plmnUePolicySet, to enhance notification control and reduce unnecessary signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If subscription procedures are implemented for all policy data changes, then complete notification coverage is achieved, but unnecessary signaling and network overload occur
Solution Approach 1:
The patent segments the policy data resources into two categories: those that trigger notifications (e.g., AmPolicyData, smPolicyData, usageMonData, sponsorConnectivityData, bdtData) and those that do not (PolicyDataSubscriptions, IndividualPolicyDataSubscription). This segmentation allows selective notification based on resource type, reducing unnecessary signaling while maintaining reliable notification coverage for relevant data changes.
Solution Approach 2:
The patent applies different notification behaviors to different resource types within the same subscription system. By defining specific exclusion rules for subscription-related resources (PolicyDataSubscriptions and IndividualPolicyDataSubscription) while maintaining notification for other policy data resources, the system achieves local quality differentiation that optimizes signaling efficiency without compromising overall notification reliability.
2Stability of the object's composition
If notifications are sent for all monitored resources, then data consistency is maintained, but network overload occurs
Solution Approach 1:
The patent extracts subscription-related resources (PolicyDataSubscriptions and IndividualPolicyDataSubscription) from the set of resources that trigger notifications. By explicitly excluding these resources from notification triggers through the exclusion rule, the system maintains data consistency for critical policy data while reducing notification volume by removing unnecessary notifications for subscription management changes.
3Adaptability or versatility
If subscription services are made universally available, then system versatility is improved, but misuse and inefficiency increase
Solution Approach 1:
The patent implements preliminary anti-action by pre-defining exclusion rules that prevent subscription-related resources from triggering notifications. This proactive measure stops potential misuse and inefficiency before they occur, while still maintaining universal subscription availability for all other policy data resources. The exclusion rule acts as a preventive mechanism that preserves system versatility while improving operational efficiency.
Data Source
AI summary
The present disclosure addresses the issues of missing procedures on subscription to notification of subscription data changes in current standards, and provides for amending the “Policy Data Subscription” data structure to indicate that the URI of the “Policy Data Subscriptions” resource and the URI of the “Individual Policy Data Subscription” resource are excluded from the list of resources for which a modification triggers a notification. The present disclosure also provides for new attributes to be included in the “Policy Data Change Notification” data type.