Statistical Cross Link Interference Measurement for Wireless Resources
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in accurately measuring and reporting cross-link interference (CLI) for random access channel (RACH) and scheduling request (SR) resources, leading to inefficiencies and increased power consumption due to the bursty nature of these resources, which are not properly reflected in legacy filtering and averaging methods.
Innovation Solution
Implementing statistical-based CLI metrics that measure and report a subset of resources with interference levels below a threshold, avoiding the need for individual resource measurements and reducing the consumption of time, frequency, and power resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If legacy filtering and averaging methods are used for CLI measurement, then measurement process is simplified, but measurement precision deteriorates due to bursty nature of RACH and SR resources not being properly reflected
Solution Approach 1:
The patent changes the measurement parameters by introducing statistical-based CLI metrics that specifically account for the bursty nature of RACH and SR resources. Instead of using legacy filtering and averaging methods, the system employs statistical measurements that capture interference characteristics during actual uplink transmissions, thereby improving measurement precision while maintaining manageable complexity through standardized reporting formats.
2Measurement precision
If individual resource measurements are performed for all allocated resources, then measurement precision improves, but power consumption and time resources increase significantly
Solution Approach 1:
The patent extracts only the essential information needed for CLI assessment by measuring and reporting statistical-based metrics for subsets of resources rather than performing exhaustive individual measurements on all allocated resources. This selective measurement approach captures the critical interference characteristics while significantly reducing power consumption and time resource usage.
Solution Approach 2:
The system performs partial measurements on selected subsets of resources that are most relevant for CLI assessment, particularly those with actual uplink transmissions. This partial action approach provides sufficient measurement precision for scheduling decisions without the excessive power and time costs of measuring every single resource.
3Use of energy by moving object
If statistical-based CLI metrics are used for subset of resources, then power consumption reduces and time resources are optimized, but device complexity increases due to statistical processing requirements
Solution Approach 1:
The patent segments the measurement process into manageable components: identifying subsets of resources with actual uplink transmissions, performing statistical measurements on these subsets, and reporting results in standardized formats. This segmentation reduces device complexity by breaking down the statistical processing into discrete, implementable steps rather than requiring complex overall processing.
4Loss of information
If measurements are performed on all allocated resources including RACH and SR, then measurement completeness improves, but resource wastage increases due to bursty nature of these resources
Solution Approach 1:
The patent applies preliminary action by first identifying which resources actually contain uplink transmissions before performing CLI measurements. This preliminary identification step prevents wasteful measurements on empty RACH and SR resources while ensuring that all resources with actual transmissions are measured, thus maintaining measurement completeness without resource wastage.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for extended cross link interference measurement and reporting. An example method performed by a first network node may include performing a plurality of measurements on a plurality of resources allocated for uplink transmissions during a period of time, wherein the plurality of resources include resources allocated for at least one of scheduling request transmissions or random access channel transmissions, and transmitting a measurement report based on the plurality of measurements, the measurement report indicating a subset of resources of the plurality of resources with statistical-based cross link interference (CLI) metrics that are less than or equal to a metric threshold.