Dynamic QoS Label Adjustment for LTE Traffic Priority
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Solution Overview
Problem
Current cellular network technologies lack user control over Quality of Service (QoS) prioritization, as access class barring and QoS class indicators are pre-provisioned by network operators, limiting users' ability to adjust traffic priority according to their needs.
Innovation Solution
A system comprising a Systems Resource Manager (SRM) and a Systems Resource Management Controller (SRMC) that allows users to dynamically adjust the priority of their endpoint devices' traffic by modifying access class identifiers and QoS class indicators, providing an external interface for on-demand priority changes and interacting with network elements like eNodeBs and EPC components to reconfigure QoS handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If access class barring and QoS class indicators are pre-provisioned by network operators, then network management and control are simplified, but user control over traffic priority is lost
Solution Approach 1:
An external interface is introduced as an intermediary between users and the QoS management system. This interface receives user requests for priority changes and translates them into appropriate QoS parameter adjustments, allowing users to control traffic priority without directly managing complex QoS configurations. The intermediary handles the complexity internally while providing simple user-facing operations.
Solution Approach 2:
The system enables users to self-service their QoS needs by allowing them to request priority changes for their own traffic flows. Users can dynamically adjust their traffic priority through the external interface without requiring network operator intervention, making the system more responsive to user needs while reducing operational overhead.
2Adaptability or versatility
If access class barring is implemented to block certain access classes during network overload, then network resource allocation is improved, but user flexibility and adaptability are reduced
Solution Approach 1:
The QoS parameters, specifically the Packet Data Session QoS Label, are made dynamic rather than static. The system allows real-time adjustment of QoS labels based on user requests and network conditions, enabling users to adapt their traffic priority dynamically. This dynamic approach replaces fixed pre-provisioned parameters with flexible, on-demand configuration.
Solution Approach 2:
The system changes QoS parameters (Packet Data Session QoS Label) in response to user requests. When a user requests higher priority, the system modifies the QoS label parameter to reflect the new priority level, allowing users to adapt their traffic handling characteristics without changing the underlying network infrastructure.
3Reliability
If pre-provisioned QoS parameters are used, then network configuration and deployment are simplified, but user-specific priority adjustments cannot be made
Solution Approach 1:
The system implements feedback mechanisms where user requests for priority changes are received, processed, and result in actual QoS parameter modifications. The external interface provides a feedback loop between user intent and system action, ensuring that user requests are reliably translated into enforceable QoS guarantees through appropriate label adjustments.
Data Source
AI summary
A network processor may receive a request from an endpoint device to increase a priority of traffic associated with a first quality of service class indicator, which is associated with a first packet data session quality of service label, and may increase the priority of the traffic in response to the request by sending an instruction to a network element to adjust a mapping of the first quality of service class indicator to a second packet data session quality of service label for the traffic. The network element may label packets in the traffic with the second packet data session quality of service label instead of the first packet data session quality of service label, and components of the network may process the packets labeled with the second packet data session quality of service label with a greater priority than packets labeled with the first packet data session quality of service label.