Access Network Device TSCAI-Based Semi-Persistent Scheduling
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Solution Overview
Problem
In Time Sensitive Networks (TSN), configuring resources for data transmission to meet strict delay requirements is challenging, leading to resource waste due to inefficient semi-persistent scheduling in traditional communication systems.
Innovation Solution
An access network device receives Time Sensitive Communication Assistance Information (TSCAI) from a core network, configuring semi-persistent scheduling resources for each service flow based on service attributes like arrival time, data period, and size, ensuring resources are allocated efficiently without waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional semi-persistent scheduling is used for resource allocation in TSN networks, then resource allocation simplicity is maintained, but resource waste increases and delay requirements cannot be met
Solution Approach 1:
The patent segments resource allocation by service flow, where each service flow receives dedicated semi-persistent scheduling resources configured according to its specific service attributes (arrival time, data period, size). This segmentation allows precise resource allocation matching actual service needs, eliminating resource waste from over-allocation while maintaining manageable complexity through automated configuration based on TSCAI parameters.
2Reliability
If resources are allocated based on maximum demand without considering actual service attributes, then delay requirements can be met, but resource waste increases
Solution Approach 1:
The patent changes the allocation parameters from fixed maximum-demand-based resources to dynamic service-attribute-based resources. By configuring semi-persistent scheduling resources according to specific TSCAI parameters (arrival time, data period, data size) of each service flow, the system allocates precisely the right amount of resources needed, ensuring delay requirements are met without excessive resource waste.
3Productivity
If semi-persistent scheduling resources are configured for each service flow according to service attributes, then resource allocation efficiency improves, but configuration complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring semi-persistent scheduling resources for each service flow based on their service attributes before data transmission begins. The access network device receives TSCAI containing service attributes and automatically configures appropriate resources in advance, eliminating the need for complex real-time allocation decisions and improving resource allocation efficiency while the system handles the configuration complexity automatically.
Data Source
AI summary
An implementation of the present disclosure relates to a resource configuration method and an access network device, wherein the method comprises: the access network device receives a plurality of time-sensitive communication assistance information (TSCAI) sent by a core network device, the plurality of TSCAI correspond to traffic attributes of a plurality of traffic flows; and the access network device configures semi-continuous scheduling resources for each traffic flow in the plurality of traffic flows according to the plurality of TSCAI.