Dynamic QoS Flow Switching for Changing Service Requirements
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Solution Overview
Problem
Existing communication systems fail to dynamically adjust Quality of Service (QoS) parameters to match changing service requirements, leading to inefficiencies and resource waste.
Innovation Solution
A communication method and apparatus that dynamically adjusts QoS parameters based on real-time service status, using a terminal device to determine and send data on DRBs corresponding to specific QoS parameter sets, with support from SMF, access network devices, and UPF to ensure alignment with current QoS requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a QoS parameter preconfigured for a service is used, then the QoS control can be performed at a granularity of a data radio bearer (DRB), but the QoS parameter does not match the QoS requirement of the service when the service status changes
Solution Approach 1:
The patent applies dynamics by enabling the QoS parameter to dynamically change based on service status. Specifically, the terminal device determines a service status index based on current service status, and different service status indexes correspond to different QoS parameter sets. This allows the QoS parameter to adapt dynamically to service status changes without requiring complex reconfiguration procedures, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent applies parameter changes by introducing a service status index that maps to different QoS parameter sets. When service status changes, the terminal device updates the service status index, which in turn triggers a switch to the corresponding QoS parameter set. This mechanism enables flexible parameter adaptation while maintaining simple control logic, as the service status index acts as an intermediary that simplifies the mapping between service status and QoS parameters.
2Reliability
If the QoS parameter is adjusted in real-time to match service requirements, then the matching degree between QoS parameter and service requirement improves, but the network resource waste occurs when the QoS requirement is satisfied
Solution Approach 1:
The patent applies partial action by providing multiple QoS parameter sets with different QoS parameters, and the terminal device selects only the appropriate parameter set corresponding to the current service status. This avoids applying excessive QoS resources when the service requirement is low, while ensuring sufficient resources when the requirement is high. The service status index enables selective activation of appropriate QoS parameter sets, preventing resource waste while meeting service requirements.
3Measurement precision
If multiple QoS parameter sets are configured for different service statuses, then the QoS parameter matching accuracy improves, but the configuration complexity increases
Solution Approach 1:
The patent introduces a service status index as an intermediary between service status and QoS parameter sets. The service status index simplifies the configuration by providing a direct mapping relationship: each service status index corresponds to one QoS parameter set. This intermediary reduces configuration complexity because the terminal device only needs to determine the service status index based on current service status, rather than directly managing complex mappings between multiple QoS parameter sets and various service conditions.
Data Source
AI summary
This application relates to the field of communication technologies, and provides a communication method and apparatus, to improve transmission performance of a communication network. In the method, a first QoS flow corresponding to a plurality of QoS parameter sets is provided. In a transmission process, a terminal device, an access network device, and a UPF may adjust, based on a change of a service requirement of a target service, a QoS parameter set corresponding to the first QoS, and transmit a service of target data based on the QoS parameter set.