Sidelink Resource Exclusion in Full Duplex Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource utilization and interference management, particularly in sidelink communication scenarios, especially with the introduction of full duplex operations which require complex resource pool management and sensing-based resource selection.
Innovation Solution
The implementation of a method that configures multiple sidelink resource pools within a Bandwidth Part (BWP) or carrier, allowing for separate frequency subsets for transmission and reception, and employing sensing-based resource re-selection to optimize resource allocation and minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensing-based resource selection is performed in all frequency regions, then resource allocation accuracy is improved, but device complexity and processing time increase
Solution Approach 1:
The frequency domain is divided into multiple frequency regions, and the sensing window is divided into multiple time intervals. The device performs sensing in only the second frequency region during the first time interval, rather than sensing across all frequency regions. This segmentation reduces the sensing scope and processing complexity while maintaining accurate resource allocation in the active frequency region.
Solution Approach 2:
Instead of performing complete sensing across the entire frequency range, the device performs partial sensing only in the second frequency region where transmission will occur. This partial action approach reduces unnecessary sensing operations in the first frequency region while still ensuring accurate resource selection in the active region.
2Object-affected harmful factors
If all candidate sidelink resources are excluded in response to non-monitoring, then interference is reduced, but resource utilization efficiency decreases
Solution Approach 1:
The exclusion of candidate resources is applied locally only to the first frequency region where non-monitoring occurred, rather than excluding all candidate resources globally. This localized exclusion maintains interference protection in the affected region while preserving resource availability in the second frequency region where monitoring was performed and resources were successfully selected.
3Productivity
If full duplex operation is implemented, then system capacity is improved, but resource pool management complexity increases
Solution Approach 1:
The resource pool is segmented into multiple frequency regions (first frequency region and second frequency region), and the sensing window is segmented into multiple time intervals. This segmentation allows the device to manage full duplex operations by independently controlling resource selection in different frequency regions, reducing the complexity of coordinating transmission and reception resources.
Solution Approach 2:
The device dynamically adjusts its sensing and resource selection behavior based on the configured frequency regions and time intervals. By performing sensing only in the second frequency region during the first time interval, and excluding resources only in the first frequency region, the device adapts its resource pool management to enable full duplex operation with reduced complexity.
Data Source
AI summary
Systems, apparatuses, and methods are provided for sidelink positioning reference signal and sidelink control information in a wireless communication system, comprising having or obtaining configuration of a set of sidelink resource pools within one Bandwidth Part (BWP) for sidelink or one carrier or cell for sidelink, not performing monitoring or not performing sensing within a first frequency region in a first slot or occasion, performing monitoring or sensing in a second frequency region in the first slot or occasion, triggering or requesting sensing-based resource (re-)selection, in a second slot or occasion, determining a first set of slots or occasions based on the first slot or occasion and a set of periodicities, excluding (all) candidate sidelink resources within the first frequency region in the first set of slots or occasions, and keeping candidate sidelink resources within the second frequency region in the first set of slots or occasions, in response to the non-monitoring or non-sensing in the first frequency region in the first slot or occasion.