PDU Set QoS Mapping for Flexible Transmission Control
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Solution Overview
Problem
Conventional QoS mechanisms for PDU sets within a QoS flow use a uniform set of parameters, leading to wastage of transmission resources and reduced flexibility, as different PDU sets may have varying transmission quality requirements.
Innovation Solution
Implementing a method where network elements receive information about the mapping relationship between PDU set attributes and transmission requirements, allowing for differentiated PDU set QoS parameters to be set based on specific attributes, ensuring accurate control and reducing resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a uniform set of PDU set QoS parameters is used for all PDU sets in a QoS flow, then the control mechanism is simple and easy to implement, but transmission resources are wasted and flexibility is reduced
Solution Approach 1:
The patent segments the QoS parameter control from flow-level to PDU set-level. Instead of applying a uniform QoS parameter set to all PDU sets within a QoS flow, the system now allows different PDU sets to have different QoS parameters (such as different PDU set error rates, delay budgets, or priority levels) based on their specific transmission requirements. This segmentation enables precise control for each PDU set while maintaining manageable complexity through standardized parameter definitions and mapping mechanisms.
Solution Approach 2:
The patent implements local quality by allowing different QoS parameters to be assigned to different PDU sets based on their specific characteristics and requirements. Each PDU set can have customized transmission quality attributes (e.g., higher error rate tolerance for non-critical data, stricter delay requirements for real-time control signals) rather than applying a one-size-fits-all approach. This local differentiation optimizes resource allocation by matching transmission quality to actual needs.
2Adaptability or versatility
If differentiated PDU set QoS parameters are implemented for different PDU sets, then transmission flexibility and control accuracy are improved, but system complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-defining QoS parameter sets and establishing mapping relationships between PDU set attributes and QoS parameters before actual transmission occurs. The system pre-configures multiple QoS parameter sets with different characteristics and creates association rules that map PDU set attributes (such as service type, priority level, or application ID) to appropriate QoS parameters. This preparation work is done in advance, reducing the complexity of real-time decision-making during transmission.
Solution Approach 2:
The patent utilizes parameter changes by introducing a mapping mechanism that dynamically selects appropriate QoS parameters based on PDU set attributes. Instead of hardcoding complex differentiation logic, the system changes parameters through configurable mapping tables or policies that associate PDU set characteristics with corresponding QoS parameter sets. This approach maintains flexibility while reducing implementation complexity through parameterized configurations rather than rigid structural changes.
Data Source
AI summary
A communication method and apparatus are provided. A first network element receives a first message from a second network element, where the first message includes first information, the first information indicates a first mapping relationship between a first parameter and first transmission requirement information, the first parameter indicates a first attribute of a first protocol data unit (PDU) set, the first transmission requirement information indicates a percentage of a first quantity in a total quantity of PDUs included in the first PDU set, and the first quantity is a quantity of PDUs that need to be correctly transmitted by the first network element during transmission of the first PDU set. The first network element transmits the first PDU set based on the first transmission requirement information.