Unified Network Slice Rate Limiting for GBR and Non-GBR Streams
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Solution Overview
Problem
Existing technologies lack a solution for effectively limiting the data rate of network slice users in 5G mobile communication systems, particularly in scenarios involving guaranteed bit rate (GBR) and non-guaranteed bit rate (non-GBR) data streams, as per the demand outlined in 3GPP R17 research reports.
Innovation Solution
A method and system implemented by a policy control function network element to perform unified rate limits on both GBR and non-GBR data streams by comparing current data stream rates with maximum terminal rates, adjusting GBR streams with lower priorities, and calculating non-GBR rate ranges to ensure compliance with network slice limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate rate limits are applied to GBR and non-GBR data streams, then each data stream can be controlled independently, but the system complexity increases and resource allocation efficiency decreases
Solution Approach 1:
The patent combines separate rate limit controls for GBR and non-GBR data streams into a unified rate limit mechanism. The policy control function network element implements a single unified rate limit that simultaneously manages both data stream types, reducing control complexity while maintaining independent QoS characteristics through the network slice identifier.
Solution Approach 2:
The unified rate limit mechanism serves multiple functions: it controls both GBR and non-GBR data streams, supports multiple network slices, and provides aggregate rate management. This multi-functional approach eliminates the need for separate control mechanisms for different data stream types while maintaining comprehensive rate management capability.
2Productivity
If unified rate limit is applied to both GBR and non-GBR data streams, then resource allocation efficiency improves, but the ability to independently control each data stream type is reduced
Solution Approach 1:
The patent applies local quality by differentiating control strategies for different data stream types within the unified rate limit framework. GBR data streams receive guaranteed bit rate allocations with priority handling, while non-GBR streams receive aggregate rate control. This allows tailored quality characteristics for each stream type while maintaining unified resource management.
Solution Approach 2:
The unified rate limit mechanism dynamically adjusts rate allocations based on real-time network conditions, data stream priorities, and network slice requirements. The policy control function network element can flexibly modify rate limits for different data stream types within the unified framework, maintaining adaptability while improving overall resource allocation efficiency.
3Productivity
If rate limits are enforced at the network element level, then transmission efficiency improves, but the device complexity and processing overhead increase
Solution Approach 1:
The patent extracts the complex rate limit enforcement logic from individual network elements and centralizes it in the policy control function network element. This allows simpler enforcement at the data plane while maintaining sophisticated rate control policies, reducing processing overhead at network elements while preserving transmission efficiency.
Data Source
AI summary
The present disclosure relates to a method, device, and system for limiting a data rate of a network slice user, and a storage medium. The method for limiting the data rate of the network slice user includes: performing, by a policy control function network element, a unified rate limit on a guaranteed bit rate (GBR) data stream and a non-guaranteed bit rate (non-GBR) data stream of the network slice user in case where a user equipment initiates a slice data session establishment request or a slice data session modification request.