Terminal Transmission Power Control for Heat-Limited Wireless Links
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Solution Overview
Problem
Wireless communication systems face increased power consumption and heat generation issues due to technologies aimed at improving throughput, which can degrade device performance and increase operational costs, particularly in battery-powered devices.
Innovation Solution
Terminals adjust transmission power limits based on temperature and resource block allocation to manage power consumption and heat, using processors to change transmission paths and reduce power usage while maintaining performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beamforming, massive MIMO, FD-MIMO, antenna arrays, or analog beamforming technologies are employed to improve throughput, then data rate and communication quality are improved, but power consumption and heat generation increase
Solution Approach 1:
The patent changes the parameter of transmission power dynamically based on temperature conditions. When the terminal detects overheating, it adjusts the transmission power limit downward, thereby reducing power consumption and heat generation while maintaining adequate communication throughput. This is achieved by modifying the power control parameters adaptively rather than using fixed high-power settings.
Solution Approach 2:
The patent introduces dynamic adjustment of transmission power limits based on real-time temperature monitoring. The system transitions from static power settings to dynamic power control, where the power limit is continuously adjusted according to thermal conditions, enabling the terminal to adapt its power consumption to actual operating conditions and avoid sustained overheating.
2Reliability
If transmission power limit is increased to maintain communication quality during overheating, then communication reliability is improved, but heat generation increases further
Solution Approach 1:
The patent implements a feedback mechanism where the terminal monitors its own temperature and uses this information to adjust transmission power limits. The temperature measurement feeds back to the power control module, creating a closed-loop system that automatically reduces power when overheating is detected, thereby preventing further temperature increase while maintaining acceptable communication quality through adaptive power control.
3Adaptability or versatility
If advanced communication technologies are deployed to support increasing number of devices, then system capacity is improved, but capital expenses and operating expenses increase
Solution Approach 1:
The patent modifies transmission power parameters dynamically based on thermal conditions, allowing the system to maintain adaptability and support multiple devices while reducing power consumption. By adjusting power limits according to temperature, the terminal can participate in high-capacity communication scenarios without incurring excessive operating expenses related to power consumption and heat management.
Data Source
AI summary
The devices, systems, and techniques described herein provide for efficient communications between devices to reduce power consumption while maintaining performance. In some aspects, a terminal may adjust a transmission power limit for transmitting signals to a base station to reduce power consumption at the terminal. In some examples, the terminal may adjust the transmission power limit based on a temperature of the terminal and a number of resource blocks allocated to the terminal (e.g., such that the temperature remains below a threshold). In some other examples, the terminal may adjust the transmission power limit based on a block error rate (BLER) (e.g., such that the BLER remains below a threshold while minimizing the transmission power limit). In some other examples, the terminal may adjust the transmission power limit based on an importance of one or more transmissions (e.g., to avoid wasting power on less important transmissions).