Dynamic Packet Detection Threshold for Wi-Fi Power Saving
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Solution Overview
Problem
In wireless communication systems, particularly in Wi-Fi Direct, it is challenging for slave stations to perform urgent uplink transmissions when the master station is in a power saving mode, as the power saving mode makes it difficult for the slave station to transmit data effectively, leading to potential delays in urgent situations.
Innovation Solution
The implementation of an information processing apparatus that switches between a normal standby mode and a low power consumption standby mode by adjusting packet detection threshold values, allowing the slave station to change packet detection conditions and notify other apparatuses of these changes, enabling efficient data transmission while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the master station sets the power saving mode using NoA protocol, then power consumption is reduced, but urgent uplink transmission from the slave station is delayed
Solution Approach 1:
The packet detection threshold is made dynamic by switching between a first threshold (normal standby) and a second threshold (lower detection probability) based on the operational state. When the master station enters power saving mode, it switches to the second threshold to reduce power consumption, but can quickly switch back to the first threshold when urgent uplink transmission is detected, thus dynamically adapting to different operational requirements
Solution Approach 2:
The invention changes the packet detection threshold parameter to resolve the contradiction. By adjusting this parameter between two distinct values depending on whether the master station is in normal standby or power saving mode, the system can optimize both power consumption and transmission responsiveness without permanent compromise
2Use of energy by moving object
If the master station uses a lower packet detection threshold to reduce power consumption, then energy savings increase, but the probability of detecting incoming packets decreases
Solution Approach 1:
The master station periodically switches between using the first packet detection threshold (higher detection probability, higher power consumption) and the second packet detection threshold (lower detection probability, lower power consumption). This periodic action allows the system to balance power savings with reliable packet detection over time, rather than permanently sacrificing either detection reliability or power efficiency
Data Source
AI summary
Provided is a technique that reduces power consumption and appropriately stands by for data.An information processing apparatus includes a control unit. The control unit performs control such that packet detection conditions are changed in a case where a first standby mode is set. The packet detection conditions are changed by switching between a first packet detection threshold value that is used in a normal standby state and a second packet detection threshold value indicating a lower packet detection probability than the first packet detection threshold value. In addition, the first packet detection threshold value and the second packet detection threshold value are packet detection threshold values to be compared with the reception level of a packet.