WLAN Allocation Slot Coordination for Low-Latency Traffic
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Solution Overview
Problem
Existing wireless local area network (WLAN) systems face challenges in efficiently managing resource allocation for low-latency traffic, leading to inefficiencies and reduced reliability in data transmission.
Innovation Solution
A method where a first access point (AP) acquires information about allocation slots from an overlapping basic service set (OBSS) and determines resource allocation for low-latency traffic within its own BSS based on this information, allowing for efficient and reliable transmission of low-latency traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access points allocate time slots independently without considering OBSS, then device complexity is reduced, but time slot overlap occurs causing transmission conflicts and reduced reliability
Solution Approach 1:
The patent implements feedback mechanisms where access points exchange resource allocation information with neighboring OBSS access points. Each AP receives feedback about allocated time slots from others and adjusts its own allocations accordingly, preventing overlaps while maintaining coordinated resource management across the network
Solution Approach 2:
The patent introduces an intermediary coordination mechanism where access points use a standardized information exchange protocol to share allocation slot data. This intermediary layer enables APs to make informed allocation decisions without direct complex peer-to-peer negotiation, reducing individual device complexity while improving overall network reliability
2Reliability
If access points exchange detailed allocation information with OBSS, then transmission conflicts are reduced, but communication overhead and processing time increase
Solution Approach 1:
The patent extracts only the essential allocation slot information needed for conflict avoidance from the complete resource allocation data. By transmitting only the critical time slot parameters rather than full allocation details, the system reduces information exchange overhead and processing time while maintaining sufficient data for reliable conflict-free transmission
Solution Approach 2:
The patent changes the parameter representation of allocation information to a compact format that conveys essential timing data with minimal bytes. This parameter optimization reduces the volume of exchanged information and accelerates processing speed, enabling fast coordination without sacrificing transmission reliability
3Adaptability or versatility
If access points use fixed time slot allocation, then resource management is simplified, but flexibility to adapt to varying traffic demands is reduced
Solution Approach 1:
The patent implements dynamic time slot allocation where access points can adjust their allocated slots based on real-time traffic conditions and feedback from OBSS. The system transitions from static to dynamic allocation, allowing APs to modify their resource usage patterns adaptively while maintaining coordination through the feedback mechanism to prevent conflicts
Data Source
AI summary
In a wireless local area network (WLAN) system, an access point (AP) may acquire, from an overlapping Basic Service Set (BSS), information related to a first allocation slot. The first allocation slot may be a time resource allocated for low-latency traffic of the OBSS, and the low-latency traffic may be a new type of traffic whose delay is set below a preconfigured threshold. The AP may transmit, to its associated STA, information related to a second allocation slot. The second allocation slot may be a time resource allocated for low-latency traffic of a BSS to which the AP belongs.