UE Collision Metric for Frequency Conflict Mitigation
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Solution Overview
Problem
Wireless communication systems face challenges in mitigating frequency collisions between different radio access technologies (RATs) supported by a user equipment (UE), leading to inaccurate measurements and operational failures.
Innovation Solution
A method and apparatus for a UE to perform a collision monitoring procedure associated with a second RAT, involving the calculation of a collision metric based on a signal measurement occasion and a frequency conflict duration, to mitigate frequency collisions and ensure accurate measurement metrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs measurements for mobility management using a second RAT, then the mobility measurement metric is improved, but frequency collisions with the first RAT may occur leading to measurement corruption
Solution Approach 1:
The system performs preliminary actions by calculating a collision metric before finalizing the mobility measurement metric. The collision metric is computed based on the first RAT transmission configuration and the second RAT measurement configuration to predict potential frequency collisions. If collisions are predicted, the system adjusts the measurement configuration or selects alternative measurement opportunities, thereby preventing corrupted measurements before they occur.
Solution Approach 2:
The collision metric serves as an intermediary mechanism that mediates between the first RAT transmission operations and the second RAT measurement operations. By introducing this intermediate assessment layer, the system can evaluate the compatibility of simultaneous operations and make informed decisions about measurement execution, preventing direct interference between the two RATs.
2Adaptability or versatility
If the UE supports multiple RATs for versatile communication, then the adaptability is improved, but frequency conflicts between RATs may occur
Solution Approach 1:
The system implements feedback by continuously monitoring the relationship between first RAT transmission configurations and second RAT measurement configurations. The collision metric calculation provides feedback on potential conflicts, enabling the system to adjust its multi-RAT operation dynamically. This feedback loop allows the UE to maintain versatile multi-RAT support while actively managing and mitigating frequency conflicts through configuration adjustments.
3Productivity
If the UE uses transmission configuration of the first RAT for normal operations, then the operational efficiency is improved, but it may cause frequency collision during signal measurement occasion of the second RAT
Solution Approach 1:
The system applies dynamics by making the first RAT transmission configuration adjustable rather than fixed. Based on the collision metric assessment, the system can dynamically modify transmission parameters such as timing, frequency, or power levels during signal measurement occasions of the second RAT. This dynamic adjustment allows the system to maintain high operational efficiency during normal operations while temporarily adapting to prevent measurement interference when needed.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a conflict indication that indicates a frequency conflict between a first radio access technology (RAT) and a second RAT that are supported by the UE. The UE may perform a collision monitoring procedure that is associated with the second RAT and comprises at least: calculating at least a collision metric that is associated with the first RAT and the second RAT, the collision metric being based at least in part on a signal measurement occasion that is associated with generating a mobility measurement metric, the mobility measurement metric being associated with the second RAT. The UE may selectively calculate the mobility measurement metric based at least in part on a frequency conflict duration, the signal measurement occasion, and the collision metric. Numerous other aspects are described.