Autonomous ISAC Sensing Resource Allocation to Reduce Inter-Cell Interference
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Solution Overview
Problem
Existing wireless communication systems face challenges in on-demand sensing signal resource allocation among different cells, leading to inter-cell interference and inefficient use of radio resources due to static allocation and lack of real-time interference knowledge.
Innovation Solution
Implementing autonomous dynamic sensing signal resource allocation for base stations and user equipment (UEs) using monostatic and bi-static sensing, where wireless devices select and monitor control channel resources to minimize interference and adapt to different network deployments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If static allocation of sensing signal resources is used, then resource allocation is simple, but inter-cell interference increases and resource utilization efficiency decreases
Solution Approach 1:
The patent implements dynamic sensing signal resource allocation where base stations autonomously select and adjust resources based on real-time channel conditions and interference levels. The allocation transitions from static to dynamic, allowing adaptation to changing network conditions while managing inter-cell interference through continuous monitoring and adjustment of resource assignments.
Solution Approach 2:
Base stations perform autonomous resource allocation without centralized control. Each base station independently monitors its own channel conditions, selects appropriate sensing signal resources, and adjusts transmission parameters to minimize interference. This self-service mechanism reduces the need for complex centralized coordination while effectively managing inter-cell interference.
2Device complexity
If static allocation of sensing signal resources is used, then system configuration is simple, but radio resource utilization efficiency decreases
Solution Approach 1:
The system dynamically adjusts sensing signal resource allocation based on real-time channel conditions, traffic demand, and interference levels. Resources are continuously reassigned to optimize utilization efficiency while maintaining manageable configuration complexity through automated decision-making at the base station level.
Solution Approach 2:
The patent changes key parameters such as transmission power, resource block assignment, and time-frequency allocation dynamically. By adjusting these parameters in response to real-time conditions, the system optimizes radio resource utilization efficiency without requiring complex manual reconfiguration of the entire system.
3Reliability
If autonomous dynamic allocation is implemented, then inter-cell interference is reduced, but device complexity increases
Solution Approach 1:
Base stations autonomously perform resource allocation by monitoring their own channel conditions and selecting appropriate resources without requiring complex centralized coordination. This self-service approach reduces inter-cell interference through local optimization while keeping the overall system complexity manageable by distributing intelligence to individual base stations rather than requiring complex centralized control.
Solution Approach 2:
The system implements feedback mechanisms where base stations continuously monitor channel conditions, interference levels, and resource utilization. This feedback information is used to adjust resource allocation decisions in real-time, reducing inter-cell interference through adaptive control while keeping the complexity manageable through automated feedback-driven decision-making rather than complex manual coordination.
Data Source
AI summary
Aspects presented herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE or base station. The apparatus may monitor a set of control channel resources that is associated with a set of sensing signal resources. The apparatus may also select at least one available control channel resource in the set of control channel resources and at least one available sensing signal resource in the set of sensing signal resources. Further, the apparatus may transmit a control channel message for a second wireless device and receive a sensing signal, where the control channel message is transmitted via the at least one available control channel resource and the sensing signal is received via the at least one available sensing signal resource.