Base Station Data Flow Mapping to Radio Bearers
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Solution Overview
Problem
In 5G radio communication systems, there is a lack of a clear method for allocating data flows transmitted via tunnels to radio bearers, which are configured between the base station and user equipment, for flow-based Quality of Service (QoS) control.
Innovation Solution
A base station is equipped with a data flow reception unit and a data flow mapping unit that maps received data flows to radio bearers based on flow identifiers, flow priorities, and tunnels, allowing for efficient allocation and transmission of data flows through QoS-controlled radio bearers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flow-based QoS control is adopted in 5G systems with tunnels for collective data transmission, then QoS control flexibility and adaptability are improved, but the complexity of mapping data flows to radio bearers increases
Solution Approach 1:
The patent segments the mapping process into distinct functional units: a data flow reception unit that receives data flows with flow identifiers and priorities via tunnels, and a data flow mapping unit that performs the actual mapping to radio bearers based on multiple criteria. This segmentation simplifies the complex mapping operation by dividing it into manageable, specialized components that can be implemented and controlled independently.
Solution Approach 2:
The patent utilizes multiple parameters (flow identifier, flow priority, and tunnel characteristics) to determine the mapping relationship between data flows and radio bearers. By changing and combining these parameters, the system achieves flexible QoS control while managing mapping complexity through systematic parameter-based decision making rather than ad-hoc configurations.
2Productivity
If multiple data flows are transmitted through a single tunnel, then network resource efficiency is improved, but the difficulty of detecting and measuring individual flow characteristics increases
Solution Approach 1:
The patent introduces flow identifiers as intermediary elements that are attached to each data flow within the tunnel. These identifiers act as mediators that enable the base station to distinguish and track individual data flows even when multiple flows share the same tunnel, thus maintaining flow-level visibility and control while achieving efficient resource utilization through tunnel-based transmission.
Solution Approach 2:
The system performs preliminary tagging of data flows with flow identifiers and priorities before they are multiplexed into tunnels. This preliminary action ensures that when data flows are aggregated in the tunnel, their individual characteristics are already marked and can be easily detected and measured at the base station without requiring complex analysis of the aggregated traffic.
Data Source
AI summary
Mapping schemes of data flows to radio bearers in flow-based QoS control are disclosed. One aspect of the present invention relates to a base station including a data flow reception unit configured to receive a data flow having a flow identifier and a flow priority via one or more tunnels and a data flow mapping unit configured to map the received data flow to a radio bearer in accordance with mapping based on one or more of the flow identifier, the flow priority and the tunnels.