PCC Rule Optimization for Multiple PDU Sessions
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Solution Overview
Problem
Existing policy and charging control (PCC) systems face inefficiencies in updating PCC rules for multiple protocol data unit (PDU) sessions and user equipment (UEs), leading to excessive signaling and resource utilization.
Innovation Solution
The system determines and provides policy and charging control rules that apply to multiple PDU sessions, using correlation identifiers or explicit indications to manage updates efficiently, and employs policy fragment identifiers to reference shared policy or charging information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PCC rules are updated per session management policy association for each PDU session, then each session receives accurate and specific policy control, but signaling overhead and resource utilization increase excessively
Solution Approach 1:
The patent merges PCC rule updates across multiple PDU sessions by identifying common policy parameters that apply to multiple sessions. Instead of sending separate update messages for each session, the system consolidates updates and transmits them collectively, reducing signaling overhead while maintaining accurate policy control for each individual session through session-specific parameter mapping.
2Manufacturing precision
If PCC rules are updated individually for each PDU session, then policy control precision is maintained, but system complexity and processing overhead increase
Solution Approach 1:
The patent segments PCC rule updates into common parameters that apply across multiple sessions and session-specific parameters. This segmentation allows the system to process common updates efficiently at a higher level while maintaining precise control over session-specific parameters, thereby reducing overall system complexity without sacrificing policy control precision.
Solution Approach 2:
The patent implements a universal update mechanism that can handle both individual session updates and bulk updates across multiple sessions. The system uses a unified approach that automatically adapts to different update scenarios, reducing the need for separate complex processing paths while maintaining the ability to provide precise policy control for each session when needed.
3Adaptability or versatility
If separate PCC rule updates are sent for each PDU session, then session-specific policy requirements are met, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements a dynamic update mechanism that adapts the update strategy based on the specific scenario. When multiple sessions share common policy parameters, the system dynamically consolidates updates to improve resource efficiency. When sessions have distinct requirements, the system dynamically transitions to individualized updates to maintain session-specific control, thereby optimizing resource utilization while preserving adaptability.
Data Source
AI summary
An apparatus configured to: determine at least one policy and charging control rule, wherein the at least one policy and charging control rule applies to a plurality of protocol data unit sessions, wherein the at least one policy and charging control rule is associated with at least one indication of at least one of the plurality of protocol data unit sessions to which the at least one policy and charging control rule applies; and provide the at least one policy and charging control rule.