5G QoS Framework Resilience Parameter Handling
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Solution Overview
Problem
Current 5G Quality-of-Service (QoS) mechanisms in Radio Access Networks (RAN) are not aware of an application's resilience to consecutive transmission failures, leading to inefficient resource allocation and potential downtime in mission-critical services.
Innovation Solution
Incorporating resilience parameters, such as survival time, into the QoS framework to enable the RAN to dynamically adjust resource allocation and packet error rates based on an application's tolerance to transmission failures, allowing for adaptive reliability and improved robustness in data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current 5G QoS mechanisms treat packets independently without application resilience awareness, then device complexity and QoS enforcement are simplified, but reliability and spectral efficiency deteriorate due to overprovisioning and inability to adapt to actual application needs
Solution Approach 1:
The application layer pre-determines resilience parameters (maximum tolerable consecutive transmission failures) before data transmission begins. These parameters are provided to the RAN in advance through PDU session establishment or QoS parameter updates, enabling the RAN to prepare appropriate QoS treatment without real-time complexity
Solution Approach 2:
The patent introduces an intermediary resilience parameter that bridges the application layer and RAN layer. This parameter acts as a mediator that conveys application-specific reliability requirements to the RAN, enabling the RAN to adjust packet error rate targets and resource allocation without direct application-RAN interaction complexity
2Reliability
If the RAN allocates adequate radio resources to ensure ultra-high service availability for mission-critical services, then reliability improves, but spectral efficiency and system capacity deteriorate due to overprovisioning
Solution Approach 1:
The RAN dynamically adjusts QoS treatment based on the application's resilience parameter. When the resilience parameter indicates high tolerance to transmission failures, the RAN reduces resource allocation and relaxes packet error rate targets. When low tolerance is indicated, the RAN allocates more resources and enforces stricter error rates, optimizing spectral efficiency while maintaining required reliability
Solution Approach 2:
The patent changes the packet error rate target parameter based on the resilience parameter. The RAN maps the resilience parameter to appropriate PER targets, allowing flexible adjustment of quality requirements without fixed overprovisioning. This parameter adaptation enables efficient resource utilization matched to actual application needs
3Reliability
If the RAN applies strict packet error rate targets for all packets, then reliability improves, but productivity deteriorates due to excessive retransmissions and reduced system throughput
Solution Approach 1:
The RAN applies different packet error rate targets to different packets based on their position in the transmission sequence and the application's resilience parameter. Early packets may have relaxed PER targets while later packets approaching the survival time limit receive stricter treatment. This localized quality adjustment ensures reliability where needed while maintaining overall system throughput
Data Source
AI summary
A Quality of Service (QOS) framework of mobile and wireless communication networks, particularly, the Fifth Generation (5G) QoS framework include a Radio Access Network (RAN) entity and User Equipment (UE) for enabling RAN awareness of a tolerance of an application to transmission failures of application data, and QoS treatment based on this resilience. The RAN entity is configured to receive information indicating at least one resilience parameter of the application, from a control entity, another RAN entity, and/or UE. The at least one resilience parameter is based on the tolerance of the application to transmission failures, in particular, consecutive transmission failures.