Cross Link Interference Resource Reporting for Wireless Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face challenges in managing cross-link interference (CLI) between user equipment (UEs) in the same cell or different cells, which affects communication efficiency and reliability.
Innovation Solution
A method for wireless communications that involves user equipment (UEs) reporting preferred and non-preferred CLI resources associated with transmission beams, allowing network entities to perform actions to mitigate CLI by configuring UEs to use preferred beams or avoid non-preferred ones, thereby reducing interference and improving communication throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UEs transmit and receive signals simultaneously in the same frequency resources (full-duplex mode), then communication throughput and spectral efficiency are improved, but cross-link interference between UEs increases
Solution Approach 1:
The patent implements a feedback mechanism where UEs measure CLI on configured resources and report measurements to the network entity. The network entity uses this feedback to identify interfering beam pairs and take corrective actions such as adjusting beam directions or resource allocations, thereby resolving the contradiction between maintaining full-duplex throughput and managing interference
Solution Approach 2:
The patent changes spatial parameters (beam directions, beamforming weights) and resource allocation parameters based on CLI measurements. By dynamically adjusting these parameters, the system maintains high throughput while reducing interference through optimized beam configurations and resource scheduling
2Measurement precision
If the network configures multiple CLI resources for measurement, then interference management accuracy is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent configures a limited set of CLI resources (e.g., specific SRS resources or CSI-RS resources) rather than requiring comprehensive measurement of all possible interference scenarios. This partial measurement approach achieves sufficient interference management accuracy while avoiding excessive signaling overhead and system complexity
Solution Approach 2:
The patent segments the interference measurement process into discrete, configurable resources that can be independently managed. By dividing the measurement space into specific CLI resources associated with particular beam pairs or UE pairs, the system achieves precise interference management without overwhelming complexity
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for cross link interference (CLI) resource reporting. An example method, performed at a first network entity, includes receiving a report, from a first user equipment (UE), indicating information regarding one or more first cross-link interference (CLI) resources, wherein the one or more first CLI resources correspond to one or more transmission beams associated with at least one second UE and are associated with lower levels of measured CLI than one or more second CLI resources, and performing one or more actions, based on the information.