Wireless Transmitter Power Saving via Data Aggregation
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Solution Overview
Problem
Wireless devices face challenges in maximizing battery life due to high power consumption by components, especially in standby mode and during data transmission, which affects user satisfaction and device longevity.
Innovation Solution
Implementing a method where the wireless transmitter is deactivated for predetermined intervals to aggregate data packets, reducing power usage by transmitting them in bursts, and the receiver transitions to sleep mode based on buffer levels to conserve power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless transmitter is continuously activated to transmit data packets, then the data transmission reliability is improved, but the power consumption increases
Solution Approach 1:
The transmitter is activated periodically in transmission intervals rather than continuously. Data packets are aggregated in a buffer during non-transmission periods, and the transmitter is activated only when the buffer contains aggregated data ready for transmission. This periodic operation reduces power consumption while maintaining reliable data transmission through proper buffer management and transmission scheduling.
Solution Approach 2:
Data packets are aggregated in advance in a buffer before transmission. The transmitter prepares and aggregates multiple data packets during non-transmission intervals, so that when the transmitter is activated, data is already ready for immediate transmission. This preliminary aggregation ensures transmission reliability is not compromised while enabling power-saving intervals.
2Use of energy by moving object
If the transmitter is deactivated for intervals to save power, then the power consumption is reduced, but the data transmission delay increases
Solution Approach 1:
Data packets are aggregated in advance in a buffer during non-transmission intervals. This preliminary aggregation ensures that when the transmitter is activated, data is already prepared and ready for immediate transmission, minimizing the delay that would otherwise occur during transmitter activation and data preparation.
Solution Approach 2:
The transmission interval and buffer aggregation period are dynamically adjusted based on data arrival rates and transmission requirements. When data arrives at consistent rates, longer aggregation intervals can be used to reduce power consumption. When data arrives sporadically or urgency is required, the system can switch to shorter intervals or immediate transmission, balancing power savings with delay requirements.
3Use of energy by moving object
If data packets are aggregated for transmission, then the power consumption is reduced, but the buffer memory requirements increase
Solution Approach 1:
The buffer aggregation period and size are dynamically adjusted based on data arrival rates and transmission conditions. When data arrives at consistent rates, the system can aggregate over longer periods, reducing the need for large buffer memory. When data arrives sporadically or buffer thresholds are approached, the system adjusts aggregation parameters to prevent overflow, optimizing the balance between power consumption and memory requirements.
Data Source
AI summary
A system and method are disclosed for decreasing the amount of power consumed by a data transmitter in a wireless device when transmitting media (audio and/or visual) data or other data received from a media source or other source. A transmission circuit, such as an application specific integrated circuit (ASIC) or WLAN chip, is configured to deactivate the data transmitter for a deactivation interval and aggregate the media data (or other consistent-rate data) in a buffer while the data transmitter is deactivated. At the end of the deactivation interval, the data transmitter is activated and the aggregated data packets are transmitted. The data transmitter may be repetitively deactivated and activated for transmitting the data. The deactivation interval may be based on the data sampling rate, the transmission rate of the data transmitter, the capacity of the buffer, and/or other factors.