Full Duplex Channel State Reporting via Interference Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing channel state reporting for full duplex transmissions, particularly in accurately measuring interference and channel conditions across multiple resources.
Innovation Solution
The method involves a user equipment (UE) receiving a configuration message from a base station that includes indicators for channel measurement resources and interference measurement resources, including self-interference measurements. The UE then transmits reports based on these measurements, allowing for more accurate channel state reporting in full duplex transmission modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex transmission mode is implemented, then spectral efficiency is improved, but self-interference measurement accuracy deteriorates
Solution Approach 1:
The patent segments interference measurement resources into distinct types: self-interference measurement resources and other-interference measurement resources. This segmentation allows the UE to separately measure and report different interference components, improving measurement accuracy while enabling full duplex operation. The configuration message includes separate indicators for these different resource types, allowing targeted measurement strategies.
Solution Approach 2:
The patent introduces an intermediary configuration message from the base station that provides detailed indicators of measurement resources. This configuration message acts as a mediator between the full duplex transmission requirements and the interference measurement needs, guiding the UE on which specific resources to use for measuring self-interference versus other interference, thereby resolving the measurement accuracy issue.
2Adaptability or versatility
If multiple interference measurement resources are configured, then interference management capability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal configuration message structure that can handle multiple types of interference measurements through a unified framework. The same configuration message format accommodates both self-interference and other-interference measurement resources, allowing the system to scale from simple to complex measurement scenarios without requiring fundamentally different configuration approaches.
Solution Approach 2:
The patent implements dynamic resource indication where the base station can flexibly configure which measurement resources are active through the configuration message. The UE adapts its measurement behavior based on the received configuration, measuring only the interference types and resources that are currently relevant, thus reducing unnecessary measurement overhead and complexity while maintaining versatile interference management capability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a configuration message that is associated with a full duplex transmission mode. The configuration message includes at least one indicator of a resource for channel measurement, where the at least one indicator of the resource for channel measurement is associated with a plurality of resources for interference measurements that include at least one resource for self-interference measurement. Additionally, or alternatively, the configuration message includes at least one indicator of a format for a sub-band report, where the format indicates that the sub-band report is to include at least one of reference signal received power, signal-to-interference-and-noise ratio, or a combination thereof. The UE may transmit, to the base station, at least one report based at least in part on the configuration message. Numerous other aspects are described.