Discontinuous Reception Cycle Selection for Battery Optimization
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Solution Overview
Problem
Current discontinuous reception (DRX) modes in LTE communication systems are inflexible, requiring devices to follow a short DRX cycle even when no data is being transmitted, leading to increased battery drain and unnecessary resource usage.
Innovation Solution
The method allows user equipment to selectively choose between a first and second discontinuous reception cycle of different lengths based on factors such as buffered data, quality of service, and configured delay tolerance, enabling the use of a longer cycle when no data is being sent, thus optimizing power consumption and resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a short DRX cycle is used, then system responsiveness and data transmission capability are improved, but battery consumption increases and system capacity decreases
Solution Approach 1:
The patent applies dynamics by making the DRX cycle length adjustable rather than fixed. The system dynamically switches between short and long DRX cycles based on whether data is being transmitted. When data transmission is active, the short cycle provides rapid responsiveness; when no data is transmitted, the long cycle reduces battery consumption. This dynamic adaptation resolves the contradiction between responsiveness and energy consumption.
Solution Approach 2:
The patent changes the DRX cycle parameter from a fixed value to a variable that can switch between two states (short and long cycles). The base station configures both cycle lengths and controls which one is active based on data transmission status. This parameter change allows the system to optimize between responsiveness and battery life by selecting the appropriate cycle length for current operating conditions.
2Productivity
If a short DRX cycle is used, then data transmission capability is improved, but system capacity decreases due to unnecessary resource usage
Solution Approach 1:
The system dynamically adjusts DRX cycle length based on data transmission needs. During active data transmission, the short cycle ensures rapid response and high productivity. During idle periods, the long cycle reduces the number of monitoring occasions, freeing up system resources and increasing overall system capacity. This dynamic adjustment resolves the contradiction between transmission capability and system capacity.
Solution Approach 2:
The DRX cycle parameter is changed from a fixed short duration to a variable that can extend to a long duration during idle periods. This parameter change reduces unnecessary monitoring activities when no data is being transmitted, thereby conserving system resources and increasing available system capacity while maintaining high data transmission capability when needed.
3Use of energy by moving object
If a long DRX cycle is used, then battery life is extended and system capacity increases, but system responsiveness and data transmission capability decrease
Solution Approach 1:
The system uses dynamic switching between long and short DRX cycles based on transmission activity. The long cycle is applied during idle periods to extend battery life, while the short cycle is activated during data transmission to maintain system responsiveness. This dynamic approach allows the system to benefit from both long and short cycle characteristics at different times, resolving the contradiction between battery life and responsiveness.
4Quantity of substance
If a long DRX cycle is used, then system capacity increases by reducing resource consumption, but data transmission capability decreases
Solution Approach 1:
The system dynamically switches DRX cycle length based on whether data transmission is occurring. The long cycle is used during idle periods to increase system capacity by reducing resource consumption. When data transmission is detected or required, the system switches to the short cycle to ensure high data transmission capability. This dynamic switching resolves the contradiction between system capacity and transmission capability.
Data Source
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AI summary
A method may be provided. The method may comprise selecting one of a first discontinuous cycle of a first length and a second discontinuous reception cycle of a second length. The second discontinuous reception cycle may be of a different length to the first cycle. Both of the first and second cycles may be available for selection. The method may further comprise using said selected cycle.