Predictive Baseband Wake-Up Timing for Latency and Power
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Solution Overview
Problem
Wireless communication terminals face challenges in efficiently reactivating baseband circuitry from power-saving modes, leading to increased latency and power consumption due to sub-optimal wake-up times during data payload transmission.
Innovation Solution
A predictive wake-up method that uses known input rates and wake-up delays to activate baseband circuitry at an optimal time, ensuring it is ready for complete data payload arrival, reducing both latency and power consumption by activating the circuitry when only a predefined portion of the payload has been accepted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If baseband circuitry is activated immediately when data payload transmission starts, then transmission latency is reduced, but power consumption increases due to unnecessary early activation
Solution Approach 1:
The system performs preliminary action by activating the baseband circuitry before the complete data payload arrives. The activation timing is calculated based on the known input rate and wake-up delay, so the circuitry is ready to process immediately when the payload completes, eliminating latency without activating too early and wasting power.
Solution Approach 2:
The system dynamically adjusts the activation timing of the baseband circuitry based on real-time parameters such as input rate and payload size. This dynamic timing optimization ensures the circuitry is activated at the precise moment needed, balancing power consumption and latency requirements.
2Use of energy by moving object
If baseband circuitry is activated only after complete payload arrival, then power consumption is minimized, but transmission latency increases
Solution Approach 1:
The system performs preliminary action by activating the baseband circuitry before the complete data payload arrives. The activation timing is calculated based on the known input rate and wake-up delay, so the circuitry is ready to process immediately when the payload completes, eliminating latency without activating too early and wasting power.
3Use of energy by moving object
If baseband circuitry wake-up delay is increased to allow slower activation, then power consumption during activation is reduced, but system responsiveness deteriorates
Solution Approach 1:
The system performs preliminary action by calculating and executing the activation sequence in advance. By determining the optimal activation time based on known parameters, the system can use larger wake-up delays for lower activation power while maintaining responsiveness, as the activation is timed to complete precisely when needed.
4Productivity
If baseband circuitry is kept active continuously for data processing, then processing speed is maximized, but power consumption increases significantly
Solution Approach 1:
The system uses periodic action by keeping the baseband circuitry inactive during idle periods and activating it only when data payload transmission is anticipated. The activation is timed precisely based on the known input rate and wake-up delay, creating an on-demand periodic operation pattern that maximizes processing availability while minimizing power consumption during idle times.
Data Source
AI summary
A method in a mobile communication terminal includes accepting a data payload at a known input rate for transmission by baseband circuitry having a known wake-up delay. Based on the known input rate and the known wake-up delay, a point in time is predicted, at which the data payload will have been only partially accepted for transmission, such that activation of the baseband circuitry at the predicted point in time will cause the baseband circuitry to be active upon complete arrival of the data payload. The baseband circuitry is activated to process the data payload at the predicted point in time.