Conditional QoS Flow DRB Selection in 5G User Equipment
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Solution Overview
Problem
In 5G wireless networks, the existing RRC-based QoS flow indication introduces unnecessary signaling overhead and latency, especially for short-lived applications without plans for dedicated DRB establishment, while current solutions fail to efficiently handle new QoS flows with stringent requirements.
Innovation Solution
Implementing conditional rules in user equipment to determine whether to use a default data radio bearer or trigger RRC signaling for a dedicated DRB, based on QoS profiles, thresholds, and timer settings, to optimize data transmission and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RRC signaling is triggered for every new QoS flow, then QoS requirements are met, but signaling overhead and latency increase
Solution Approach 1:
The patent changes the parameter of QoS flow handling by introducing conditional logic based on QoS profile parameters. Instead of uniformly triggering RRC signaling for all new QoS flows, the system evaluates specific parameters (QoS profile matching, threshold comparisons) to determine whether RRC signaling is necessary, thereby reducing unnecessary signaling latency while maintaining QoS requirements.
Solution Approach 2:
The user equipment performs self-service by autonomously determining whether to trigger RRC signaling based on pre-configured conditional rules. The UE evaluates QoS profiles and compares them against thresholds locally, making intelligent decisions about resource allocation without requiring network intervention for every flow, thus reducing signaling overhead and latency.
2Reliability
If RRC signaling is triggered for every new QoS flow, then dedicated DRB establishment is ensured, but signaling overhead increases
Solution Approach 1:
The patent applies parameter changes by introducing conditional evaluation based on QoS profile parameters and thresholds. The system changes from a static approach (always establish dedicated DRB) to a dynamic approach where parameters such as QoS profile matching and threshold comparisons determine whether dedicated DRB establishment is necessary, thereby reducing signaling overhead while ensuring QoS requirements are met.
Solution Approach 2:
The patent implements partial action by triggering RRC signaling only when necessary based on conditional rules. Instead of excessively establishing dedicated DRBs for all QoS flows, the system applies partial action by selectively triggering signaling only for flows that require it, thereby reducing unnecessary signaling overhead while maintaining reliable QoS handling.
3Loss of energy
If default DRB is used for all QoS flows, then signaling overhead is reduced, but QoS requirements cannot be met
Solution Approach 1:
The patent resolves this contradiction by changing the parameter of DRB selection from a static default approach to a dynamic conditional approach. The system evaluates QoS profile parameters and compares them against configured thresholds to determine the appropriate DRB type. This parameter-based decision-making ensures that signaling overhead is reduced for simple flows while QoS requirements are met for flows that need dedicated resources.
Solution Approach 2:
The patent introduces dynamics into the DRB selection process by making it adaptive rather than static. The system dynamically determines whether to use default or dedicated DRB based on real-time evaluation of QoS profiles against conditional rules. This dynamic approach allows the system to optimize between signaling overhead and QoS fulfillment based on actual flow requirements.
4Productivity
If conditional rules are implemented, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring conditional rules and QoS profiles in the user equipment before actual data transmission. The complex evaluation logic is prepared in advance, allowing the UE to efficiently evaluate incoming QoS flows against pre-defined thresholds and profiles without performing complex real-time analysis, thereby improving transmission efficiency while managing device complexity.
Data Source
AI summary
In accordance with an example embodiment of the present invention, an apparatus comprising: at least one processor; and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to at least perform: for a new quality of service (QoS) flow in a buffer of a user equipment, determine using one or more conditional rules whether to send data from the new QoS flow using a default data radio bearer (DRB) or to trigger radio resource control (RRC) signaling to request a dedicated DRB for the new QoS flow; and perform, by the user equipment and based on an outcome of the determining, one of transmitting the data using the default DRB or triggering the RRC signaling to request the dedicated DRB for the new QoS flow.