Network Slice-Specific AMBR Signaling for Precise QoS Control
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing aggregate maximum bit rates (AMBRs) across network slices, leading to inefficiencies in resource allocation and quality of service delivery.
Innovation Solution
Configuring network slice-specific aggregate maximum bit rates (AMBRs) by transmitting and limiting bit rates across network functions such as CU, DU, CP, UP, MN, and SN, using signaling processes in various messages to ensure optimal resource allocation for non-GBR QoS flows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If network slice-specific AMBR configuration is implemented, then resource allocation efficiency and QoS control are improved, but system complexity and configuration overhead increase
Solution Approach 1:
The patent segments the AMBR configuration by network slice, allowing independent AMBR parameters to be defined for each slice. This enables precise resource control per slice while maintaining overall system efficiency, resolving the contradiction between resource allocation efficiency and system complexity through structured division of control parameters.
Solution Approach 2:
The patent introduces slice-specific AMBR parameters as configurable variables that can be dynamically adjusted. By changing the parameter structure from generic to slice-specific, the system achieves improved resource allocation efficiency while the parameterization approach actually manages rather than increases complexity through systematic configuration.
2Measurement precision
If slice-specific AMBR limiting is applied at multiple network functions, then QoS control precision is improved, but signaling overhead and processing delay increase
Solution Approach 1:
The patent applies AMBR limiting at multiple network functions including the UP function, allowing QoS control decisions to be made earlier in the data flow path. This preliminary action at strategic points enables precise QoS control without requiring sequential processing at every network function, thereby reducing overall processing delay while maintaining control precision.
3Productivity
If aggregate AMBR control is implemented across all network slices, then overall network resource utilization is improved, but individual slice QoS guarantees deteriorate
Solution Approach 1:
The patent segments AMBR control into slice-specific components, defining separate AMBR parameters for each network slice. This segmentation enables both aggregate resource utilization optimization and individual slice QoS guarantees to coexist, as each slice maintains its own resource boundaries while contributing to overall network efficiency.
Solution Approach 2:
The patent applies different AMBR control characteristics to different network slices based on their specific QoS requirements. Each slice receives localized quality control tailored to its service needs, allowing critical slices to maintain strict guarantees while non-critical slices contribute to overall resource utilization efficiency.
Data Source
AI summary
The present document relates to methods, systems, and devices related to digital wireless communication, and more specifically, to techniques related to configuring network slice-specific aggregate maximum bit rates (AMBRs). In one exemplary aspect, a method for wireless communication is disclosed. The method includes obtaining, by a first network function, one or more maximum bit rates that are specific to network slices configured for a terminal. The method also includes transmitting, by the first network function, the one or more maximum bit rates to a second network function, wherein the second network function is configured to limit a bit rate of network flows for the terminal according to the one or more maximum bit rates.