UE Cross-Link Interference Reporting for Full-Duplex Coordination
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Solution Overview
Problem
Wireless communications systems experience cross-link interference (CLI) due to full duplex communications, which can affect user equipment (UEs), and existing methods do not efficiently manage or report this interference.
Innovation Solution
User equipment (UE) reports a quantity of calculations and corresponding reports it can perform within a given time period, including channel state information (CSI) and CLI measurements, to improve resource utilization and coordination between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex communications are implemented to increase system capacity and spectral efficiency, then productivity is improved, but cross-link interference between UEs increases which degrades reliability
Solution Approach 1:
The patent implements CLI measurement and reporting mechanisms where UEs measure cross-link interference from other UEs and report these measurements to the network entity. The network entity uses this feedback to adjust scheduling decisions, modify resource allocations, or change transmission parameters to mitigate the interference while maintaining full duplex operation.
Solution Approach 2:
The network entity acts as an intermediary that receives CLI measurements from UEs and processes this information to make coordinated scheduling decisions. The network entity mediates between conflicting UE transmissions by allocating resources in a way that minimizes cross-link interference while maximizing system capacity.
2Measurement precision
If multiple CLI measurements and reports are processed simultaneously to improve measurement precision, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the CLI measurement and reporting process into distinct components: CLI measurement resources are separately allocated, CLI measurements are performed on specific reference signals, and reports are generated based on calculation quantities. This segmentation allows the UE to process multiple measurements systematically without overwhelming complexity.
Solution Approach 2:
The network entity configures the UE with specific parameters including the quantity of CLI measurements to perform, the quantity of reports to generate, and the calculation quantities for each report type. By allowing dynamic adjustment of these parameters, the system can balance measurement precision requirements against UE processing capabilities.
Data Source
AI summary
Methods, systems, and devices for wireless communication are described. In some systems, a user equipment (UE) may transmit a message that indicates a first quantity of calculations that the UE is capable of performing within a same time period. The first quantity of calculations may include at least one calculation that is based on one or more cross-link interference (CLI) measurements at the UE. A first quantity of reports supported by the UE may be based on the first quantity of calculations. The CLI measurements may correspond to interference at the UE based on communications by at least a second UE. The UE may transmit a second quantity of one or more reports based on the CLI measurements. The second quantity of reports may be less than or equal to the first quantity of reports based on the message.