Remote Controller Carrier Sensing for Balanced Battery Life
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Solution Overview
Problem
Remote controllers in wireless communication systems, especially those with high operation frequencies, experience varying battery life due to differing power consumption levels, leading to inefficient battery management and increased user burden.
Innovation Solution
Implementing a wireless communication system where remote controllers adjust their carrier sense period based on the number of times of transmission, allowing for reduced power consumption and more balanced battery life by prioritizing communication for high-frequency devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If remote controllers perform frequent wireless communication transmissions, then control functionality is improved, but power consumption increases and battery life shortens
Solution Approach 1:
The patent applies dynamics by making the carrier sense period variable rather than fixed. The access point dynamically adjusts the carrier sense period for each remote controller based on its transmission frequency, allowing high-frequency controllers to use shorter periods (reducing their power consumption) while low-frequency controllers use longer periods (conserving their power). This dynamic adaptation resolves the contradiction between maintaining control functionality and reducing power consumption.
Solution Approach 2:
The patent changes the parameter of carrier sense period based on transmission frequency. By modifying this communication parameter dynamically according to each remote controller's usage pattern, the system optimizes power consumption while maintaining necessary control functionality. High-frequency controllers get shorter carrier sense periods to reduce their disproportionate power consumption.
2Device complexity
If remote controllers use fixed carrier sense periods, then communication simplicity is maintained, but battery life difference among controllers increases
Solution Approach 1:
The patent implements feedback by having the access point monitor each remote controller's transmission frequency and use this information to adjust the carrier sense period. The access point receives transmission data, determines transmission frequency, and feeds back appropriate carrier sense period values to each controller. This feedback mechanism balances battery life across controllers while maintaining communication effectiveness.
Solution Approach 2:
The patent segments the carrier sense period parameter by remote controller based on transmission frequency. Instead of using a single unified carrier sense period for all controllers, the system divides and assigns different periods to different controllers according to their usage patterns. This segmentation allows each controller to operate optimally for its specific usage scenario.
Data Source
AI summary
A wireless communication system performing wireless communication in carrier sense multiple access/collision avoidance system is provided. The wireless communication system includes: remote controllers that corresponding to control targets and transmitting control information for controlling each of the control targets through wireless communication; and an access point that receives and relays the control information to a control apparatus of the control target. The access point includes an access point side wireless communication control portion transmitting a beacon signal and performing wireless communication with each of the remote controllers. Each of the remote controllers includes a remote controller side wireless communication control portion performing wireless communication with the access point. The remote controller side wireless communication control portion performs a carrier sense for a predetermined carrier sense period. The remote controller side wireless communication control portion transmits the control information, and shortens the carrier sense period for a next carrier sense.