Master Base Station Flow Mapping for 5G LTE Interworking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The interworking between 5G and LTE/LTE-Advanced radio access networks lacks sufficient consideration of flow control, which is crucial for providing stable and flexible services with varying QoS characteristics, especially during the early stages of 5G deployment.
Innovation Solution
A method for interworking between 5G and LTE/LTE-Advanced radio access networks involves receiving a service quality policy from the core network, mapping packet flows to radio flows or bearers based on this policy, and transmitting flow and bearer identifiers to ensure efficient packet flow-based QoS control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If flow-based packet control is introduced in 5G network slicing, then service flexibility and QoS control precision are improved, but interworking complexity between 5G and LTE/LTE-Advanced networks increases
Solution Approach 1:
The patent introduces a flow mapping mechanism that acts as an intermediary between 5G flow-based control and LTE bearer-based control. The master base station performs flow-to-bearer mapping, translating 5G QoS requirements into LTE-compatible bearer configurations, thereby enabling interworking without requiring complex direct integration between the two network architectures
Solution Approach 2:
The patent segments the interworking function into distinct components: flow identification, flow-to-bearer mapping, and QoS parameter translation. This segmentation allows each component to be independently implemented and managed, reducing overall system complexity while maintaining service flexibility
2Measurement precision
If flow mapping is performed at the master base station, then QoS control precision is improved, but processing load and operational complexity increase
Solution Approach 1:
The patent performs flow-to-bearer mapping in advance during connection setup and session establishment phases. By pre-configuring the mapping relationships between 5G flows and LTE bearers before actual data transmission, the system achieves precise QoS control without adding real-time processing complexity during data flow operations
Data Source
AI summary
Provided are a method and an apparatus for interworking between 5G and LTE/LTE-advanced radio access networks (RANs). The method may include receiving, by a master base station, a service quality policy from a core network connected to the master base station and a secondary base station, receiving one or more packet flows from the core network; and mapping the packet flows to at least one of radio flows and radio bearers based on the service quality policy.