Wireless UE Signal Quality Reporting with Delay and Collision Handling
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Solution Overview
Problem
Current mechanisms for wireless user equipment (UE) devices to report signal quality information, such as SINR, are inefficient, leading to suboptimal beam selection and communication performance due to delays and collisions in reporting processes.
Innovation Solution
The method involves performing measurements of SINR and interference levels at multiple instances, averaging these measurements to derive beam quality information, and transmitting this information to the base station with controlled delays, while also handling collisions by prioritizing the transmission of signal quality reports to minimize peak-to-average power ratio (PAPR) and ensuring only relevant beams are reported.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE device performs measurements and reports signal quality information using conventional mechanisms, then the reporting process is simple, but delays and collisions occur leading to suboptimal beam selection and communication performance
Solution Approach 1:
The patent applies dynamics by making the reporting mechanism flexible and adaptive. The UE device dynamically adjusts measurement configurations, reporting timelines, and resource allocations based on current channel conditions and network requirements. This allows the system to optimize beam selection performance while minimizing reporting delays by adapting to varying operational contexts rather than using fixed conventional mechanisms.
Solution Approach 2:
The patent implements preliminary action by performing measurements and preparing beam quality information in advance before actual reporting is needed. The UE device conducts measurements on channel measurement resources (CMR) and interference measurement resources (IMR) proactively, so that when reporting is required, the information is already prepared and can be transmitted with minimal delay, thus improving both reliability and reducing time loss.
2Measurement precision
If the UE device transmits signal quality reports frequently to improve accuracy, then beam selection performance improves, but peak-to-average power ratio increases and collisions occur
Solution Approach 1:
The patent extracts and reports only the most relevant beam quality information rather than transmitting all measurement data frequently. By selecting and reporting only critical signal quality metrics that impact beam selection performance, the system maintains measurement precision while reducing transmission frequency, thereby lowering the peak-to-average power ratio and avoiding collisions with other uplink signals.
Solution Approach 2:
The patent applies partial action by performing comprehensive measurements but reporting only the essential portion of information needed for beam selection. The UE device measures multiple beams and parameters but selectively reports only those that are most relevant for current beam selection decisions, achieving sufficient accuracy without the harmful effects of excessive frequent transmissions.
3Loss of information
If the UE device reports information on all measured beams, then complete beam quality information is provided, but reporting overhead and processing complexity increase
Solution Approach 1:
The patent applies local quality by providing detailed beam quality information only for beams that are locally relevant to the current communication context. Instead of uniformly reporting on all measured beams, the UE device identifies and reports detailed quality metrics only for beams that have potential for selection based on threshold criteria and current channel conditions, thus maintaining information completeness for decision-making while reducing overall reporting complexity.
Solution Approach 2:
The patent segments the beam reporting process into multiple stages: initial measurement of all beams, filtering to identify candidate beams based on quality thresholds, and detailed reporting only for candidate beams. This segmentation approach ensures that complete beam quality information is available for evaluation while the actual reporting burden is reduced to only the most relevant segments, decreasing processing complexity.
4Productivity
If the UE device performs multiple measurements to reduce delay, then reporting efficiency improves, but the probability of collision with other signals increases
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of a structured reporting timeline and resource allocation framework. The base station configures specific reporting slots and uplink resources that act as intermediaries between the UE's multiple measurements and the actual transmission. This intermediary structure coordinates measurement and reporting activities to maximize efficiency while minimizing collision probability by assigning dedicated transmission opportunities.
Solution Approach 2:
The patent implements periodic action by establishing regular reporting cycles with predetermined timelines. The UE device performs measurements and reports beam quality information at periodic intervals rather than continuously or ad-hoc. This periodic structure improves reporting efficiency by creating predictable patterns that can be optimized, while simultaneously reducing collision probability by spacing transmissions systematically and allowing the system to anticipate and manage potential conflicts.
Data Source
AI summary
A wireless user equipment (UE) may employ any of various mechanisms for reporting signal quality measurements to a wireless network. The UE may impose a time delay between measurement and reporting, based on a delay parameter K. The UE may average measurements obtained at different measurement instances. The UE may employ any of various schemes for prioritizing transmission of one type of report over another, when temporal collisions occur between different types of report. The UE may employ a differential report that includes a state for indicating that a beam is not workable. The UE may employ a beam index that includes a state for indicating an invalid beam. A base station may receive a signal quality report and determine workability of a beam, e.g., by triggering a report of channel state information.