Sub-QoS Flow Segmentation for Differentiated Packet Transmission
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Solution Overview
Problem
Current communication technologies fail to meet diverse data transmission requirements for packets with different importance or characteristics within the same service flow, leading to inconsistent transmission quality.
Innovation Solution
A packet transmission method that involves transmitting Quality of Service (QoS) request information to a Policy Control Function (PCF) network element, generating Policy and Charging Control (PCC) rules for sub-QoS flows, and processing packets based on sub-QoS flow identifiers and rules to ensure differentiated transmission requirements are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If packets with different importance or characteristics are transmitted in the same service flow using conventional technologies, then the transmission process is simple, but the data transmission requirements of these packets cannot be met
Solution Approach 1:
The patent segments a service flow into multiple QoS flows, where each QoS flow can carry packets with specific QoS requirements. This is achieved by introducing QoS flow identification information in packet headers and establishing separate transmission paths for different QoS flows, allowing packets with different importance or characteristics to be handled differently while maintaining overall system manageability
Solution Approach 2:
The patent applies local quality by assigning different QoS parameters (such as priority, bandwidth, delay tolerance) to different QoS flows within the same service flow. Each QoS flow can be optimized independently according to the specific requirements of the packets it carries, enabling differentiated transmission quality for different packet types
2Reliability
If QoS flows are introduced to meet diverse transmission requirements, then transmission quality for different packets is improved, but system complexity increases
Solution Approach 1:
The patent introduces universal QoS flow identification mechanisms and standardized marking fields that can be applied across different packet types and service flows. The QoS flow identification information is embedded in a unified manner in packet headers, allowing the same QoS management infrastructure to handle diverse transmission requirements without requiring separate complex systems for each packet type
Solution Approach 2:
The patent manages system complexity by changing key parameters such as introducing QoS flow identification information and packet marking mechanisms. These parameter changes enable the system to differentiate and manage multiple QoS flows using standardized fields and procedures, avoiding the need for fundamentally different handling mechanisms for each packet type
Data Source
AI summary
A packet transmission method is provided. The method includes: transmitting Quality of Service (QoS) request information to a Policy Control Function (PCF) network element in a request message, the QoS request information comprising sub-QoS flow detection information and sub-QoS information of a sub-QoS flow in a QoS flow; and receiving a response message to the request message, the response message comprising indication information on whether the request message is approved, the QoS request information being for indicating the PCF network element to generate policy and charging control (PCC) rules for the sub-QoS flow upon approval of the request message, and the PCC rules for the sub-QoS flow comprising the sub-QoS flow detection information and the sub-QoS information.