Sensing Resource Candidate Selection Under Cross-Link Interference
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Solution Overview
Problem
Wireless communication devices experience interference due to overlapping sensing and cross-link interference resources, affecting reliability and latency in communication operations.
Innovation Solution
Configuring communication devices with multiple sensing resources and cross-link interference resources to determine non-interfered sensing resources for measurement, allowing for improved interference management and reporting to the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication devices are configured with sensing capability in a communication band, then sensing applications (object detection and classification) can be performed, but interference is experienced or caused to other communication devices, impacting reliability
Solution Approach 1:
The patent segments the communication band into multiple sensing resources (different time-frequency slots) and configures multiple sensing resource candidates. This allows the UE to divide sensing operations across multiple resources, enabling selection of non-interfered resources for sensing while maintaining communication reliability on other resources.
Solution Approach 2:
The patent implements dynamic resource selection where the UE measures cross-link interference on each sensing resource candidate and dynamically selects the best non-interfered resource for sensing operations. This dynamic adaptation allows the system to respond to changing interference conditions, maintaining both sensing capability and communication reliability.
2Reliability
If multiple sensing resources are configured, then the UE can determine a non-interfered sensing resource, but device complexity increases due to multiple resource management and interference measurement
Solution Approach 1:
The patent enables the UE to autonomously perform interference measurement and self-select the optimal non-interfered sensing resource without extensive network control. The network only needs to configure multiple sensing resource candidates, while the UE independently measures interference and makes resource selection decisions, reducing network-side complexity.
Solution Approach 2:
The patent performs preliminary interference measurement on all sensing resource candidates before actual sensing operations. By pre-identifying non-interfered resources through cross-link interference measurement, the system avoids runtime conflicts and simplifies the actual sensing execution phase.
3Reliability
If cross-link interference measurement is performed on overlapping resources, then interference can be detected, but measurement precision may be affected by the presence of sensing signals
Solution Approach 1:
The patent extracts the interference measurement function from the sensing resources and performs it on dedicated cross-link interference measurement resources. By separating measurement operations from sensing operations, the system can accurately measure cross-link interference without the confounding presence of sensing signals, improving measurement precision.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) may receive an allocation of a set of sensing resources and a set of cross-link interference measurement resources. The UE may identify a sensing resource of the set of sensing resources on which a sensing signal is received, and determine one or more of the set of cross-link interference measurement resources that overlap with the sensing resource. The UE may thereby measure the one or more cross-link interference measurement resources for cross-link interference based on the one or more cross-link interference measurement resources overlapping with the sensing resource.