WLAN Stream Classification Using SCS and LL IDs
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Solution Overview
Problem
Existing wireless LAN systems lack effective methods for classifying low latency traffic and indicating Stream Classification Service (SCS) and Low Latency (LL) IDs, which are crucial for supporting advanced communication environments with low latency and ultra-high reliability.
Innovation Solution
A method and device for classifying low latency traffic in a wireless LAN system by transmitting and receiving request and response frames that include information for SCS and LL IDs, enabling accurate stream classification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional WLAN classification methods are used, then general traffic can be handled, but low latency traffic cannot be effectively classified or prioritized
Solution Approach 1:
The patent segments traffic classification by introducing separate identification fields: SCS ID for stream classification service and LL ID for low latency traffic. This segmentation allows the system to handle different traffic types with appropriate priority levels, enabling effective low latency traffic classification while maintaining support for general traffic through the dual-field approach.
2Measurement precision
If SCS ID and LL ID indication methods are not implemented, then frame structures remain simple, but accurate stream classification for low latency traffic cannot be achieved
Solution Approach 1:
The patent extracts critical classification information into dedicated fields (SCS ID and LL ID) within the frame structure. By taking out the essential low latency identification data into separate, standardized fields, the system achieves accurate stream classification without excessively complicating the overall frame structure, as these fields can be selectively included based on traffic requirements.
Data Source
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AI summary
A method and apparatus for classifying low latency (LL) traffic in a wireless LAN system are disclosed. The method performed by a first STA in a wireless LAN system, according to an embodiment of the present disclosure, may comprise the steps of: transmitting, to a second STA, a request frame for a stream classification service (SCS) step; and receiving, from the second STA, a response frame to the request frame. Here, at least one of the request frame and the response frame may comprise first information indicating an SCS ID and second information indicating an LL-related ID for classification of LL traffic.