QoS Flow Mapping for Mixed-Service Data Transmission
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Solution Overview
Problem
Existing communication systems struggle to efficiently differentiate and meet the diverse quality of service (QoS) requirements for data streams within the same service flow, leading to suboptimal resource utilization and user experience, particularly in scenarios like social live video streaming and TCP data stream transmission.
Innovation Solution
A data transmission method that involves determining the type of service and obtaining characteristic information to establish specific mapping relationships between packet filters and QoS flows, allowing for differentiated treatment of data packets based on their QoS parameters, using SMF and UPF entities to manage QoS flows and DRBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing communication systems use traditional QoS mapping methods, then the system structure remains simple, but the system cannot efficiently differentiate and meet diverse QoS requirements for data streams within the same service flow
Solution Approach 1:
The patent segments the QoS handling mechanism by introducing separate SMF (Session Management Function) and UPF (User Plane Function) entities. The SMF is responsible for determining mapping relationships between packet filters and QoS flows, while the UPF executes the actual mapping and differentiation of data streams. This segmentation enables diverse QoS requirements to be met without overwhelming complexity in a single entity.
Solution Approach 2:
The patent introduces the SMF as an intermediary between the network and the UPF. The SMF receives service flow information, determines the mapping relationships between packet filters and QoS flows, and provides this mapping information to the UPF. This intermediary approach allows complex QoS differentiation logic to be centralized in the SMF while keeping the UPF's operations simpler and more efficient.
2Productivity
If traditional QoS mapping is used, then the implementation is straightforward, but resource utilization is suboptimal and user experience deteriorates
Solution Approach 1:
The patent implements preliminary action by having the SMF determine and establish the mapping relationships between packet filters and QoS flows before actual data transmission occurs. The SMF receives service flow information in advance, analyzes the QoS requirements, and configures the appropriate mapping rules. This pre-configuration enables efficient resource utilization during data transmission without requiring complex real-time decisions at the UPF.
Solution Approach 2:
The patent incorporates feedback mechanisms where the UPF reports data stream information and QoS flow status back to the SMF. The SMF uses this feedback to adjust and optimize the mapping relationships between packet filters and QoS flows, ensuring that resource allocation remains optimal as network conditions and service requirements change. This feedback loop maintains high resource utilization while managing implementation complexity.
Data Source
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AI summary
Embodiments of this application provide a data transmission method and an apparatus. A first communication apparatus receives first indication information from a second communication apparatus, where the first indication information indicates whether a first service of a terminal device is a service of a first type. The first communication apparatus obtains characteristic information of the first service based on the first indication information, determines a mapping relationship between a packet filter set of the first service and a quality of service QoS flow based on the characteristic information, and sends the mapping relationship to a third communication apparatus. By implementing the method, distinguishing processing can be effectively performed on data of the service of the first type, so that resource utilization is improved while different transmission requirements are met.