Dual Connectivity Carrier Coordination for UE Overheating
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Solution Overview
Problem
In dual connectivity configurations, base stations of different radio access technologies (RATs) struggle to coordinate operating assistance parameters effectively, leading to inefficient overheating mitigation in user equipment (UEs), particularly in 5G NR networks, due to higher throughput and frequency spectrum usage.
Innovation Solution
Base stations in dual connectivity configurations share and jointly coordinate operating assistance parameters, including maximum component carriers and bandwidth, across different RATs to manage overheating by reducing active component carriers and bandwidth, using overheating manager applications to monitor and adjust configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations increase the quantity of component carriers and bandwidth for higher throughput, then data transmission capacity is improved, but UE overheating risk increases
Solution Approach 1:
The patent implements dynamic adjustment of component carrier quantity and bandwidth configuration based on real-time UE overheating status. The network side receives overheating assistance information from the UE and dynamically modifies the active component carrier set and bandwidth parameters, allowing the system to adapt between high throughput mode and thermal management mode according to actual conditions
Solution Approach 2:
The patent changes key operating parameters including the quantity of active component carriers, bandwidth part configurations, and frequency range allocations based on UE thermal state. By modifying these parameters dynamically, the system can reduce the processing load and radio frequency activity to mitigate overheating while maintaining optimal data transmission capacity under normal conditions
2Reliability
If base stations coordinate operating assistance parameters across different RATs, then overheating mitigation efficiency is improved, but system complexity increases
Solution Approach 1:
The patent merges the coordination of operating assistance parameters across multiple radio access technologies (NR and E-UTRA) into a unified management framework. The network side consolidates the configuration of component carriers, bandwidth parts, and other parameters across different RATs, enabling coordinated thermal management while reducing the complexity of separate management approaches
Solution Approach 2:
The patent creates a universal overheating assistance mechanism that works across multiple radio access technologies. The same overheating assistance information structure and parameter coordination approach is applied universally to both NR and E-UTRA connections, allowing the system to handle multi-RAT scenarios with a single standardized method rather than separate solutions for each RAT
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first base station (BS) may receive, from a user equipment (UE), an overheating assistance information communication that indicates a maximum quantity of component carriers, combined between the first BS and a second BS, for the UE. The first BS may transmit, to the second BS, a request to reduce a quantity of component carriers of the second BS configured for the UE such that a total quantity of component carriers, between the first BS and the second BS, configured for the UE satisfies the maximum quantity of component carriers. Numerous other aspects are provided.