Wireless Device TWT Power Optimization via Trigger Frames
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Solution Overview
Problem
Existing wireless communication technologies, such as those supporting the IEEE 802.11ax standard, face challenges in reducing power consumption and processing time due to unnecessary data access and resource collisions in dense environments, particularly when using Target Wake Time (TWT) technology.
Innovation Solution
An electronic device is configured to broadcast a signal with time information, detect other devices using radio resources, and determine the number of detections to decide whether to perform communication based on a trigger frame signal, thereby selectively using a trigger-enabled option to reduce power consumption and optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If TWT technology is used to reduce power consumption, then power consumption is reduced, but processing time is delayed due to additional operations
Solution Approach 1:
The electronic device performs preliminary actions by broadcasting a signal before the TWT service period to inform other devices of upcoming resource usage. This advance notification allows the device to skip certain detection operations during the service period, reducing processing time while maintaining power savings.
Solution Approach 2:
The device dynamically adjusts its operation mode based on the detected occupancy state of radio resources. When resources are occupied, it delays communication; when free, it proceeds immediately. This dynamic adaptation optimizes both power consumption and processing time based on real-time conditions.
2Reliability
If additional detection operations are performed to check radio resource occupancy, then collision avoidance is improved, but processing time is extended
Solution Approach 1:
Instead of performing complete detection operations for every potential collision scenario, the device performs a simplified detection by checking only the necessary radio resource occupancy during the TWT service period. This partial action provides sufficient collision avoidance while minimizing processing time extension.
Solution Approach 2:
The device performs preliminary detection by broadcasting a signal before the service period to establish resource reservations. This preliminary action reduces the need for extensive real-time detection during the service period, maintaining reliability while reducing processing time.
3Use of energy by moving object
If the device waits for trigger frame signals before communicating, then power consumption is reduced, but data transmission delay increases
Solution Approach 1:
The device dynamically switches between two communication modes: trigger-frame-based mode for power saving and immediate transmission mode for low latency. Based on the occupancy state检测结果, the device selects the appropriate mode, achieving a balance between power consumption and transmission delay.
Solution Approach 2:
The device performs preliminary checks of radio resource occupancy before entering sleep mode. This preliminary action allows it to make informed decisions about whether to wake up for immediate transmission or wait for trigger frames, optimizing both power consumption and delay based on current conditions.
Data Source
AI summary
An electronic device includes: a wireless communication circuit; a memory storing at least one instruction; and a processor configured to execute the at least one instruction to: broadcast, using the wireless communication circuit and based on a time interval, a first signal including first data that may include time information; detect, during a time span corresponding to the time information, at least one second external electronic device from among the plurality of external electronic devices that uses a radio resource for communication with at least one of the electronic device and the first external electronic device, wherein the time span occurs after the broadcasting of the first signal; determine a number of detections made by the detecting of the at least one second external electronic device, during the time span; and based on the number of detections exceeding a threshold value, perform, using the wireless communication circuit, communication with the first external electronic device based on a trigger frame signal received from the first external electronic device.