5G UE Overheating Mitigation via Frequency Range Specific Assistance
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Solution Overview
Problem
5G systems face challenges in addressing overheating in User Equipment (UE) due to the absence of UE categories and the use of distinct frequency ranges, which differ from LTE systems, making existing LTE-based overheating solutions undesirable.
Innovation Solution
The solution involves UE providing explicit or implicit assistance information to the network to reduce or disable specific frequency ranges (FR1 or FR2) and baseband processing, indicating preferred configurations to mitigate overheating through features sets and bandwidth adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LTE-based overheating solutions are used in 5G systems, then existing solution framework can be leveraged, but the solutions become undesirable due to absence of UE categories and distinct frequency ranges
Solution Approach 1:
The patent changes the parameters of overheating assistance information to be frequency-range-specific. Instead of using unified LTE-based UE categories, the system introduces separate assistance information mechanisms for FR1 and FR2, allowing independent control of bandwidth, carrier components, and MIMO layers for each frequency range. This parameter differentiation resolves the contradiction by adapting the solution to 5G's distinct frequency range architecture while maintaining the core overheating management function.
2Measurement precision
If frequency range-specific assistance information is provided, then overheating control precision is improved, but signaling complexity increases
Solution Approach 1:
The patent segments the overheating assistance information into separate components for FR1 and FR2. Each frequency range has its own assistance information structure containing bandwidth, carrier components, and MIMO layer parameters. This segmentation enables precise frequency-range-specific control while managing signaling complexity through modular, standardized information elements that can be processed independently.
3Temperature
If bandwidth and carrier components are reduced to address overheating, then temperature control is improved, but data rate performance deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of bandwidth, carrier components, and MIMO layers based on real-time overheating conditions and frequency range. The network can dynamically reconfigure these parameters for FR1 or FR2 independently, allowing the system to optimize between temperature control and data rate performance by selecting which frequency range to prioritize and how to allocate resources dynamically.
Solution Approach 2:
The patent applies local quality by treating FR1 and FR2 differently in terms of overheating control. Each frequency range can have its own specific bandwidth, carrier component, and MIMO layer configurations based on local thermal conditions and performance requirements. This allows differentiated optimization where one frequency range may be prioritized for thermal management while another maintains performance-critical operations.
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system or networks beyond 5G communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method of a User Equipment, UE, in a wireless communication system, the method comprising: receiving, from a base station, configuration information on reporting assistance information associated with an overheating; detecting the overheating; and transmitting, to the base station, the assistance information including first information for controlling a bandwidth associated with at least one of a first frequency range or a second frequency range based on UE's preference, wherein a first frequency corresponding to the first frequency range is smaller from a second frequency corresponding to the second frequency range.