5G UE Thermal Management via TX/RX Path Switching
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Solution Overview
Problem
5G user equipment (UE) experiences rapid temperature increases due to high data transfer rates, leading to potential thermal overloading and system-wide overheating, which existing solutions often address by throttling data speeds or disabling 5G services, resulting in service interruptions or degraded quality of service.
Innovation Solution
The method involves detecting overheated transmitter (TX) or receiver (RX) paths in 5G UE and switching to alternative paths within the same or different radio frequency (RF) bands, allowing for continued 5G service while managing temperature through efficient path switching and handover procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transfer rate is increased to provide higher throughput, then productivity is improved, but temperature increases rapidly causing thermal overloading
Solution Approach 1:
The patent segments the transmitter and receiver paths into multiple independent paths (first TX path, second TX path, first RX path, second RX path). When thermal overloading is detected in one path, the system can switch to alternative paths, allowing continuous high-speed data transfer without interrupting productivity while managing temperature effectively.
2Temperature
If temperature mitigation schemes are activated to control temperature, then temperature is reduced, but service quality degrades due to throttling or disabling 5G
Solution Approach 1:
The patent implements dynamic path switching between multiple TX and RX paths based on real-time temperature monitoring. When thermal overloading is detected in the current path, the system dynamically switches to an alternative path, maintaining continuous 5G service without throttling or disabling, thus preserving service quality and reliability while effectively managing temperature.
3Productivity
If power amplifiers operate at high power to achieve high DL/UL speeds, then productivity is improved, but heat generation increases causing system-wide overheating
Solution Approach 1:
The patent enables the system to discard (switch away from) the currently active TX/RX path when thermal overloading is detected, and recover by activating an alternative path. This allows the system to temporarily discontinue using the overheated power amplifiers, reducing heat generation and preventing system-wide overheating, while maintaining high DL/UL speeds through the alternative paths.
Data Source
AI summary
Methods and systems for managing temperature of 5G UE by TX/RX path switching. If temperature of the UE increases beyond a preconfigured threshold due to heat contributed by a first TX/RX path of the UE, embodiments perform switching from the first TX/RX path to a second TX/RX path to control the temperature of the UE. The first TX/RX path and the second TX/RX path correspond to the same or different RF bands. If the first TX/RX path and the second TX/RX path correspond to different RF bands, the UE sends, to a wireless network, either: a measurement report, indicating that RSRP of a cell corresponding to the second TX/RX path is greater than RSRP of the serving cell corresponding to the first TX/RX path; or a UE Assistance Information indicating that the UE intends to camp on the cell corresponding to the second TX/RX path of the UE.