Wi-Fi Aware Discovery Window Configuration for Lower Latency
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Solution Overview
Problem
Existing Wi-Fi Aware communication systems face inefficiencies in service discovery due to fixed discovery windows that do not adapt to varying communication needs, leading to suboptimal latency and power consumption.
Innovation Solution
Adaptive adjustment of the discovery window (DW) interval and duration based on indices exchanged between electronic devices to optimize communication efficiency and quality, including methods for contention mitigation and device limitation within the DW.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed discovery window is used in Wi-Fi Aware communication, then the system structure is simple and easy to implement, but communication efficiency is suboptimal and latency is high
Solution Approach 1:
The patent applies dynamics by making the discovery window parameters (interval and duration) adjustable rather than fixed. The system dynamically configures DW interval and duration based on communication requirements, allowing the discovery window to adapt to varying traffic patterns and service needs, thereby improving communication efficiency without requiring complete system redesign
Solution Approach 2:
The patent implements parameter changes by introducing configurable parameters for discovery window interval and duration. These parameters can be modified based on communication conditions, service types, and network environment, enabling the system to optimize performance for different scenarios while maintaining a relatively simple base structure
2Use of energy by moving object
If a fixed discovery window is used, then device complexity is low, but power consumption is high due to unnecessary wake-ups
Solution Approach 1:
The system dynamically adjusts the discovery window interval based on communication activity and service requirements. When communication is inactive or low-priority, the interval can be extended, reducing the frequency of wake-ups and lowering power consumption. When communication activity increases, the interval shortens to maintain responsiveness, balancing energy efficiency with service quality
3Loss of time
If a fixed discovery window is used, then implementation is simple, but latency is high due to inability to adapt to communication needs
Solution Approach 1:
The patent changes the discovery window parameters (interval and duration) based on communication needs and service requirements. By adjusting these parameters dynamically, the system can reduce latency for time-sensitive applications while maintaining longer intervals for less critical communications, optimizing response time without requiring complete system redesign
Data Source
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AI summary
An electronic device for performing Wi-Fi Aware communication according to an embodiment of the present disclosure comprises a transceiver and a processor. The processor may perform control to transmit, to a second electronic device, a frame including a first index for an interval of a discovery window (DW) used for Wi-Fi Aware communication and a second index for a duration of the DW. The processor may perform control to perform Wi-Fi Aware communication with the second electronic device in the DW configured on the basis of the first index and the second index.