RSSI Thresholds for BSS Transitions in WLAN ESS
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Solution Overview
Problem
Wireless local area networks (WLANs) face challenges in efficiently managing resource usage due to multiple devices sharing resources, with some devices limited by communication protocols or hardware bandwidth, and the need to operate with both new and legacy protocols, leading to suboptimal bandwidth and response times.
Innovation Solution
The proposed solution involves a radio architecture that includes a front-end module, radio IC circuitry, and baseband processing circuitry, capable of handling both WLAN and Bluetooth signals, with advanced circuitry configurations for multi-band operation and high-efficiency Wi-Fi communications, using techniques like OFDMA and multi-user MIMO, and implementing RSSI thresholds for seamless transitions between access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple devices share the same WLAN resources, then network coverage is extended, but bandwidth and response times deteriorate
Solution Approach 1:
The patent segments the WLAN network into multiple Basic Service Sets (BSS) grouped into BSS groups, each managed by a BSS manager. This segmentation allows independent resource management and scheduling within each BSS group, preventing resource contention from degrading overall network performance while maintaining extended coverage through multiple access points.
Solution Approach 2:
The patent implements dynamic resource allocation through BSS managers that continuously monitor and adjust channel access, bandwidth distribution, and power levels based on real-time network conditions. This dynamic management optimizes bandwidth utilization across multiple devices while maintaining coverage, resolving the contradiction between extended area and productivity.
2Adaptability or versatility
If devices operate with both newer protocols and legacy device protocols, then compatibility is improved, but device complexity increases
Solution Approach 1:
The patent introduces BSS managers as intermediary entities that handle protocol translation and coordination between legacy devices and newer protocol devices. These managers act as mediators that manage resource allocation and channel access for mixed protocol environments, reducing the complexity burden on individual devices while maintaining broad compatibility.
Solution Approach 2:
The patent creates universal BSS manager entities that can handle multiple protocol types (legacy and newer protocols) through a unified management framework. This multi-functional approach allows a single management system to serve diverse device types, improving compatibility without proportionally increasing device complexity through standardized management interfaces.
3Device complexity
If devices are limited by communication protocol or hardware bandwidth, then device simplicity is maintained, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where BSS managers continuously monitor resource utilization, channel conditions, and device performance metrics. Based on this feedback, managers dynamically adjust resource allocation, power levels, and channel assignments to optimize efficiency. This centralized feedback-based management improves resource utilization without requiring complex decision-making capabilities at the device level, maintaining device simplicity.
Data Source
AI summary
Apparatuses, computer readable media, and methods for received signal strength indicator (RSSI) thresholds for transitions are disclosed. An apparatus comprising processing circuitry is disclosed, where the processing circuitry is configured to associate with a first access point (AP), the first AP being part of an extended service set (ESS), decode a frame from the first AP, the frame including an ESS report element, the ESS report element including a recommended basic service set (BSS) transition threshold within the ESS field, and decode a beacon frame from the first AP. The processing circuitry may be further configured to respond to a measured RSSI of the beacon frame being below a value indicated by the recommended BSS transition threshold within the ESS field, by initiating a transition to a second AP.