NAN Device Availability Adaptation for Power and Traffic Management
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Solution Overview
Problem
Existing neighbor awareness network (NAN) devices face inefficiencies in managing availability and power consumption due to constant active waiting for interactions, leading to increased network traffic and potential overload during post-NAN activities.
Innovation Solution
Implementing a system that allows NAN devices to adaptively change their availability based on idle time and traffic load by transmitting discovery beacon frames, synchronization beacon frames, and service discovery frames, enabling devices to idle or transition to sleep mode when inactive, and update availability bitmaps dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If NAN devices remain constantly active to wait for interactions, then response time to requests is improved, but power consumption increases
Solution Approach 1:
The NAN device dynamically adjusts its operational state between active and idle/sleep modes based on real-time conditions. The device transitions from a static constant-active state to a dynamic state where it can be active when needed and idle when no interactions are pending, resolving the contradiction between response time and power consumption.
Solution Approach 2:
The device employs periodic monitoring of interaction requests and uses discovery windows at scheduled intervals to check for pending communications. This periodic action allows the device to enter idle states between discovery windows, reducing power consumption while maintaining the ability to respond to requests when they occur.
2Adaptability or versatility
If NAN devices continuously monitor and advertise availability, then service discovery capability is improved, but network traffic increases
Solution Approach 1:
Instead of continuous monitoring and advertising, the NAN device performs service discovery and availability advertising periodically during scheduled discovery windows. This periodic action reduces network traffic while maintaining service discovery capability, as devices only transmit and listen during these designated time intervals rather than continuously.
Solution Approach 2:
The device dynamically adjusts its advertising behavior based on current availability status and detected idle time. When the device is idle or transitioning to sleep mode, it updates its availability bitmap to reflect reduced availability, thereby reducing unnecessary network traffic while maintaining accurate service discovery information.
3Productivity
If NAN devices advertise extended availability for post-NAN activities, then ability to handle post-NAN requests is improved, but device overload increases
Solution Approach 1:
The NAN device dynamically adjusts its advertised availability for post-NAN activities based on its actual capacity and current load conditions. By using an availability bitmap that can be updated in real-time, the device can advertise extended availability when capable but reduce advertised availability when approaching overload, thereby balancing productivity with device complexity management.
Solution Approach 2:
The device monitors its own operational state and feedback from incoming requests to adjust its availability advertising. When the device detects high load or idle periods, it modifies its availability bitmap accordingly, providing feedback to other NAN devices about its current capacity to handle post-NAN activities, thus preventing overload while maintaining productivity.
Data Source
AI summary
This disclosure describes systems, methods, and computer-readable media related to adaptively changing availability of neighbor awareness networking (NAN) devices for post-NAN activities. In some embodiments, a first NAN enabled device may generate a NAN service discovery frame. The first NAN enabled device may transmit the NAN service discovery frame to a plurality of NAN enabled devices during a discovery window of the NAN. A request frame from a second NAN enabled device may be received based at least in part on transmitting the NAN service discovery frame. A response frame may be transmitted to the second NAN enabled device. A second NAN service discovery frame may be generated and include an updated availability bitmap based at least in part on data received in the request frame from the second NAN enabled device. The first NAN enabled device may transmit the second NAN service discovery frame.