QoS Management in Wireless Data Radio Bearers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing quality-of-service (QoS) for multiple traffic flows over a single connection with a core network, particularly in establishing and configuring data radio bearers (DRBs) to support varying QoS requirements.
Innovation Solution
The proposed method involves managing QoS for service data flows (SDFs) by determining whether existing DRBs can support the required QoS parameters and, if not, establishing new DRBs. This approach allows for a one-to-many mapping of DRBs to transport with the core network, aggregating SDFs with similar QoS parameters to optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate DRB is established for each SDF to provide dedicated QoS, then QoS reliability is improved, but device complexity and resource overhead increase
Solution Approach 1:
The patent merges multiple SDFs with similar QoS requirements into a single shared DRB. The eNB aggregates traffic from multiple SDFs and maps them to common DRBs based on QoS similarity, reducing the total number of bearers while maintaining QoS guarantees through centralized scheduling and resource allocation.
Solution Approach 2:
The patent makes DRBs multi-functional by enabling a single DRB to serve multiple SDFs simultaneously. The shared bearer can handle different service data flows with varying QoS requirements through dynamic resource allocation and prioritization mechanisms at the eNB, allowing one bearer to perform multiple QoS functions.
2Adaptability or versatility
If multiple DRBs are established to support varying QoS requirements, then QoS adaptability is improved, but loss of energy and resource overhead increase
Solution Approach 1:
The patent applies local quality by assigning different QoS treatment parameters to different portions of the shared DRB resources based on the specific SDF requirements. The eNB dynamically allocates resources within the shared bearer according to the local QoS needs of each SDF, providing customized QoS treatment without requiring separate dedicated bearers for each flow.
Solution Approach 2:
The patent enables DRBs to serve multiple functions by allowing a single bearer to handle multiple SDFs with different QoS requirements. Through dynamic resource allocation and prioritization at the eNB, the shared bearer adapts to varying QoS demands while reducing overall resource overhead compared to dedicated bearers.
3Productivity
If existing DRBs are reused for multiple SDFs, then productivity is improved, but manufacturing precision of QoS treatment decreases
Solution Approach 1:
The patent dynamically changes QoS treatment parameters (such as scheduling priority, resource allocation, modulation and coding schemes) within shared DRBs based on the specific requirements of each SDF. The eNB monitors traffic characteristics and adjusts parameters in real-time to maintain precise QoS treatment while utilizing shared bearers, ensuring that resource reuse does not compromise service quality.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Aspects described herein relate to managing service data flows and corresponding data radio bearers. An indication of a binding between a service data flow and a data radio bearer with an access point can be received. The data radio bearer for binding to the service data flow can be determined as either an existing data radio bearer that supports one or more quality-of-service (QoS) parameters of the service data flow or a new data radio bearer to support one or more data flows of the service data flow. An existing data radio bearer can be modified or a new data radio bearer can be established based on the determination. Based on the binding, a packet can be transmitted using the data radio bearer based at least in part on classifying the packet as related to the service data flow.