Terminal Transmit Power Control for Radio Performance
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Solution Overview
Problem
Communication terminals face challenges in balancing radio reception and transmission performance with radiation absorption index, leading to issues like call drops and service loss in edge regions, where improving Total Radiated Power (TRP) is a common but insufficient solution.
Innovation Solution
A method and terminal design that monitor the current working mode to adjust transmit power dynamically, using enhanced power when a headset or handsfree function is used, or when the terminal is away from the user's body, and standard power when close to the body, to optimize radio reception and transmission performance while maintaining a consistent radiation absorption index.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal increases transmit power to improve radio reception and transmission performance, then the radio reception and transmission capability is improved, but the radiation absorption index increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment by monitoring working modes (headset, handsfree, distance-based) and adapting power levels accordingly. The terminal switches between different transmit power configurations based on real-time detection of usage scenarios, making the power level flexible rather than fixed to resolve the contradiction between maintaining good radio performance and limiting radiation exposure.
Solution Approach 2:
The patent applies different transmit power levels to different local conditions or usage scenarios. Specifically, it uses first transmit power for headset/handsfree modes and second transmit power for direct-to-ear modes, optimizing performance for each specific local context while managing radiation exposure appropriately for each usage scenario.
2Reliability
If the terminal uses higher transmit power in edge regions to maintain service quality, then the service reliability is improved, but the radiation absorption increases
Solution Approach 1:
The patent changes the transmit power parameter based on detected working modes and environmental conditions. By monitoring whether the terminal is in headset mode, handsfree mode, or direct-to-ear mode, the system adjusts the transmit power parameter dynamically, allowing higher power when necessary for service quality while reducing power when not needed, thus resolving the contradiction between service reliability and radiation absorption.
3Object-affected harmful factors
If the terminal maintains consistent radiation absorption index, then the safety is improved, but the radio reception and transmission performance may be compromised
Solution Approach 1:
The patent resolves this contradiction by making transmit power dynamic rather than fixed. The system monitors working modes continuously and adjusts power levels accordingly, ensuring that radiation absorption is kept consistent and safe on average while allowing performance to be optimized when needed through appropriate power selection based on current usage conditions.
Data Source
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AI summary
Embodiments of the present invention disclose a method for controlling terminal signal transmission, and a terminal. A method for controlling terminal signal transmission includes: monitoring a current working mode of a terminal; transmitting a signal according to first transmit power if it is found through monitoring that the terminal is currently in a first working mode, and transmitting the signal according to second transmit power if it is found through monitoring that the terminal is currently in a second working mode, where the first transmit power is greater than the second transmit power. The technical solution of the embodiments of the present invention helps to enable the terminal to obtain as good radio reception and transmission performance as possible at a same radiation absorption index.