Wireless Link Quality Evaluation for Multi-TRP Power Saving
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Solution Overview
Problem
In 5G wireless communication systems, there is a challenge in evaluating the link quality of Transmission-Reception Points (TRPs) associated with multiple Physical Cell Identities (PCIs) while ensuring power saving and communication reliability, as traditional methods are inefficient in detecting link quality degradation in a timely manner, leading to potential communication quality degradation and dropped calls.
Innovation Solution
A method involving the reception of signaling indicating multiple RS resource sets associated with different PCIs, where link quality evaluations are completed within specific evaluation periods based on predefined conditions, allowing for flexible and efficient power management and reliable communication by configuring appropriate evaluation times for each TRP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the evaluation time for link quality is extended to ensure accurate measurement, then measurement precision is improved, but the detection speed deteriorates causing delayed response to link quality degradation
Solution Approach 1:
The patent segments the link quality evaluation into two independent types: first link quality evaluation (quick evaluation) and second link quality evaluation (accurate evaluation). Each evaluation type has different evaluation periods and conditions, allowing the system to perform rapid initial checks followed by more thorough measurements only when necessary, thus resolving the contradiction between measurement precision and detection speed.
Solution Approach 2:
The patent dynamically adjusts the evaluation period based on predefined conditions. When conditions are met, the system uses a shorter evaluation period for quick assessment; when conditions are not met, it switches to a longer evaluation period for accurate measurement. This dynamic adaptation allows the system to optimize between measurement precision and detection speed in real-time.
2Speed
If the evaluation period is shortened to improve detection speed, then response time to link quality degradation is reduced, but measurement precision deteriorates leading to inaccurate link quality assessment
Solution Approach 1:
The patent divides the evaluation process into two segments with different precision requirements. The first evaluation uses a shorter period for speed, while the second evaluation uses a longer period for precision. This segmentation allows the system to achieve both fast detection and accurate measurement without compromising either aspect.
Solution Approach 2:
The patent changes the evaluation period parameter based on predefined conditions. By adjusting this parameter dynamically between short and long periods according to the evaluation context, the system can optimize the balance between detection speed and measurement precision for different scenarios.
3Device complexity
If traditional link quality evaluation methods are used for multi-TRP communications, then device complexity is reduced, but adaptability to new communication architectures deteriorates
Solution Approach 1:
The patent designs a universal evaluation framework that can handle both traditional single-TRP and new multi-TRP communication scenarios. By introducing condition-based selection between different evaluation types, the system maintains simplicity for traditional cases while gaining adaptability for multi-TRP communications, thus resolving the contradiction between complexity and adaptability.
Solution Approach 2:
The patent creates a dynamic evaluation system that automatically adapts to different communication architectures based on predefined conditions. The system selects the appropriate evaluation type (first or second) depending on the communication scenario, enabling it to handle both traditional and advanced multi-TRP communications without requiring a completely new complex system.
4Reliability
If link quality evaluation is performed continuously to ensure communication reliability, then reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic link quality evaluation rather than continuous evaluation. By using predefined conditions to determine when evaluations are necessary, the system performs measurements at appropriate intervals, maintaining communication reliability while significantly reducing power consumption compared to continuous monitoring.
Solution Approach 2:
The patent changes the evaluation frequency parameter based on communication conditions. When link quality is stable and conditions are met, the system reduces evaluation frequency to save power; when conditions indicate potential degradation, it increases evaluation frequency to maintain reliability, thus optimizing the balance between reliability and power consumption.
Data Source
AI summary
The present application discloses a method and device for wireless communications, comprising receiving a first signaling, and the first signaling indicating a first RS resource set and a second RS resource set; executing a first link quality evaluation for a first BWP according to the first RS resource set; executing a second link quality evaluation for a first BWP according to the second RS resource set; wherein the first RS resource set and the second RS resource set are respectively associated with a first PCI and a second PCI; a first condition set is used for the first link quality evaluation, when all conditions in a first condition set are met, the first link quality evaluation is completed within a first evaluation period. The present application can better save power by controlling a first link quality evaluation and a second link quality evaluation.