WLAN Power Save Domains for Device-Specific Power Modes
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Solution Overview
Problem
Existing WLAN technologies lack a unified framework for managing power save modes tailored to the diverse power consumption requirements of various devices, such as IoT sensors, wearables, and laptops, leading to inefficient power management and increased energy consumption.
Innovation Solution
A framework is introduced for controlling power save modes in WLANs, enabling different power saving modes based on device types and key performance indicators (KPIs), with mechanisms to indicate and update power save modes through configurable parameters in frames like beacon, association, and probe requests, and managing power save categories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unified power save mode framework is implemented for all WLAN devices, then device complexity is reduced, but power consumption efficiency deteriorates because diverse device requirements (IoT sensors, wearables, laptops) cannot be addressed
Solution Approach 1:
The patent segments the WLAN network into different Power Save Domains (PSD), where each domain can independently manage power save modes for specific device types. This allows IoT sensors, wearables, and laptops to operate in optimized power modes within their respective domains while maintaining overall network coordination through the access point.
Solution Approach 2:
The patent implements local quality by allowing different power save parameters and policies to be applied to different spatial or logical regions (domains) of the WLAN. Each Power Save Domain can have customized power management characteristics tailored to the specific requirements of devices in that domain, rather than applying a uniform approach across the entire network.
2Use of energy by moving object
If power save modes are customized for different device types, then power consumption efficiency is improved, but device complexity increases due to the need for multiple management frameworks
Solution Approach 1:
The access point serves as a universal coordinator that manages multiple Power Save Domains simultaneously. It implements a multi-functional power save framework that can handle different device types (IoT sensors, wearables, laptops) with customized power modes while providing a unified management interface, thus avoiding the need for separate management systems for each device type.
Solution Approach 2:
The access point acts as an intermediary between devices with diverse power requirements and the network infrastructure. It translates device-specific power save needs into coordinated domain-level power management decisions, enabling customized power modes for different device types without requiring each device to implement complex standalone management frameworks.
3Measurement precision
If power save mode updates are transmitted frequently to all devices, then power mode accuracy is improved, but energy consumption increases due to continuous communication overhead
Solution Approach 1:
The patent implements periodic power save mode updates within each Power Save Domain rather than continuous updates to all devices. The access point transmits power mode information at optimized intervals based on domain activity and device states, ensuring accurate power mode management while minimizing communication overhead and energy consumption compared to continuous broadcasting to all devices.
Data Source
AI summary
Embodiments herein disclose methods and systems for controlling a power saving in a Wireless Local Area Network (WLAN). These embodiments include determining, by a station (STA), a need to indicate a power save mode including at least one of enablement or update of a status of the STA and a user input. These embodiments include transmitting, an updated power save mode information that includes associated configurable parameters impacting power save to peer STA based on determination. Embodiments also involve determining a default power save mode for station, upon the STA powering up. The method includes transmitting default power save mode information and at least one configurable operating mode capability to peer STA, based on default power saving mode. Controlling power saving based on default power save mode information.