Cellular Modem Activation Based on App State for Battery Life
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Solution Overview
Problem
Wireless communication devices face challenges in extending battery life due to inefficient management of cellular radio activation and deactivation, particularly in advanced cellular systems like LTE and 5G NR, which consume significant power without optimizing usage based on application needs.
Innovation Solution
Implementing application-aware cellular radio activation/deactivation mechanisms in UE devices, where the cellular modem is selectively enabled or disabled based on application inputs such as application state, category, AI assistant status, network assertions, proximity information, and WiFi status, to optimize power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If cellular modem is continuously activated to support applications, then application performance is improved, but power consumption increases
Solution Approach 1:
The cellular modem transitions between active and inactive states dynamically based on application requirements. The system monitors application states and activates the modem only when applications need cellular connectivity, rather than maintaining continuous operation. This dynamic state adjustment resolves the contradiction by adapting modem operation to actual needs.
Solution Approach 2:
The system employs periodic monitoring of application states and conditional activation of the cellular modem. Instead of continuous operation, the modem is activated in periodic intervals when triggered by application events, reducing overall power consumption while maintaining performance when needed.
2Use of energy by moving object
If cellular modem is deactivated to save power, then power consumption is reduced, but application responsiveness deteriorates
Solution Approach 1:
The system performs preliminary assessment of application states and network conditions before activating the cellular modem. By evaluating whether application activation is actually needed based on current state and context, the system avoids unnecessary activations that would not improve responsiveness, thus saving power without compromising actual application needs.
Solution Approach 2:
The system continuously monitors application states, network conditions, and modem performance to dynamically adjust activation decisions. This feedback mechanism ensures the modem is activated only when it will genuinely improve application responsiveness, preventing both unnecessary power consumption and missed activation opportunities.
3Use of energy by moving object
If application-aware activation mechanism is implemented, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The cellular modem activation system monitors and responds to application states autonomously without requiring complex external control. The modem essentially self-manages its activation based on detected application needs and network conditions, reducing the burden on higher-level system complexity while maintaining power efficiency.
Data Source
AI summary
Apparatuses, systems, and methods for application aware cellular radio activation/deactivation, e.g., in 5G NR systems and beyond. The UE may receive, while operating in a power savings mode in which a cellular modem of the UE is disabled, inputs associated with an application of the UE. The UE may determine, based on the inputs, to activate the cellular modem to support the application of the UE. The inputs may include an indication of an application state or status, an indication of an application category, an indication of a state or status of an AI assistant of the UE, an indication of whether an application is a session application, an indication of network assertions, an indication of proximity information, an indication of a WiFi state or a WiFi status, and/or indications associated with one or more timers.