Wireless Device Discovery via Periodic Time State Cycling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Legacy wireless discovery methods result in increased power consumption and network congestion due to constant device probing and lack of control over query/response cycles, especially in crowded environments.
Innovation Solution
Implementing a method where devices wake up and perform wireless discovery at specific times and frequencies, cycling through all possible combinations to limit the number of devices actively searching, thereby reducing power usage and message exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices perform constant discovery (listening or probing), then new wireless devices are discovered almost instantly, but power consumption increases and network congestion develops rapidly
Solution Approach 1:
The patent implements periodic discovery intervals where devices alternate between active discovery periods and sleep periods. During active periods, devices perform listening or probing; during sleep periods, devices conserve power by remaining inactive. This periodic pattern maintains discovery capability while significantly reducing average power consumption compared to constant discovery.
Solution Approach 2:
The patent introduces dynamic adjustment of discovery parameters based on network conditions. Devices can modify their discovery interval, listening duration, and probing frequency according to detected network congestion levels and power availability, optimizing the balance between discovery speed and power consumption in real-time.
2Reliability
If wireless devices perform constant discovery (listening or probing), then new wireless devices are discovered almost instantly, but network congestion develops rapidly
Solution Approach 1:
By implementing periodic discovery intervals with controlled active periods, the patent limits the total number of discovery messages transmitted across the network. The scheduled nature of these periodic actions prevents message flooding and reduces overall network congestion while maintaining acceptable discovery performance.
Solution Approach 2:
The patent applies partial action by having devices perform discovery only during designated active periods rather than continuously. This partial engagement in discovery activities reduces the total message exchange volume while still achieving necessary discovery objectives for most devices.
3Use of energy by moving object
If devices wake up and perform discovery at specific times and frequencies cycling through combinations, then power efficiency is enhanced and network congestion is reduced, but discovery time may increase
Solution Approach 1:
The patent implements preliminary action by having devices pre-schedule their discovery intervals and select time/frequency combinations in advance. Devices prepare their discovery schedules based on predicted network conditions and power availability, allowing them to execute efficient periodic discovery without real-time decision delays.
Solution Approach 2:
The patent incorporates feedback mechanisms where devices monitor network conditions, power levels, and discovery success rates to adjust their periodic discovery parameters. This feedback loop allows the system to optimize the balance between power efficiency and discovery time based on actual operating conditions rather than fixed schedules.
Data Source
Figure 1A~1B
Figure 1C
Figure 2~2VI
AI summary
A method for synchronizing the discovery of wireless services or applications in a wireless network using a recurring time interval T in which wireless devices within the wireless network can be in one of a predetermined plurality of time states. The method includes selecting a time state from amongst the plurality of time states, performing discovery by a first wireless device supporting a given service or application once during the recurring time interval T at the selected time state, and repeating the above steps in successive ones of the recurring time interval T until all of the predetermined plurality of time states have been selected.