Terminal CLI Reporting for SBFD Interference Scheduling
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Solution Overview
Problem
Existing methods do not adequately address interference measurement and reporting between terminals in the context of subband non-overlapping full duplex (SBFD) scenarios, which can degrade reception characteristics in wireless communication systems.
Innovation Solution
A method for reporting Cross-Link Interference (CLI) between terminals in SBFD scenarios using CSI report-based SRS-RSRP, where terminals measure and report SRS-RSRP to the base station, allowing for improved scheduling and interference management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminals transmit and receive signals simultaneously in SBFD scenarios, then communication capacity is improved, but inter-terminal interference increases
Solution Approach 1:
The patent implements a feedback mechanism where terminals measure CLI using SRS-RSRP and report measurements to the base station. The base station uses this feedback information to adjust scheduling decisions, thereby managing interference while maintaining full duplex communication capacity.
Solution Approach 2:
The base station acts as an intermediary that receives CLI measurement reports from terminals and makes scheduling decisions based on this information. This intermediary role allows the system to coordinate terminal transmissions and reduce interference while preserving the benefits of simultaneous uplink and downlink communication.
2Device complexity
If CLI measurement and reporting methods are not adequately defined, then system complexity is reduced, but interference management capability deteriorates
Solution Approach 1:
The patent reuses existing CSI reporting mechanisms and SRS-RSRP measurement procedures for CLI reporting purposes. This multi-functional approach allows the system to leverage established protocols rather than creating new complex reporting mechanisms, thereby maintaining reliability without significantly increasing system complexity.
Solution Approach 2:
Terminals autonomously perform CLI measurements using SRS-RSRP and generate reports without requiring complex centralized coordination. This self-service approach enables interference measurement capability while keeping the system relatively simple by distributing the measurement function to individual terminals.
3Measurement precision
If all measurement contents are reported, then measurement precision is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential CLI measurement information (SRS-RSRP values) that is most relevant for scheduling decisions and reports this extracted data to the base station. This selective reporting approach maintains measurement precision for the most important parameters while reducing overall signaling overhead by not reporting all possible measurement contents.
Data Source
AI summary
This terminal comprises: a control circuit that determines, on the basis of the configuration of a measured reference signal, at least one of the contents and the number of measurement values included in a report field of the measurement with respect to the reference signal; and a transmission circuit that transmits, on the basis of the determined at least one of the number and contents, a signal including the measurement values.