SRS Panel Mapping for Accurate CSI Reporting and Scheduling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In next-generation mobile communication systems like NR, the relationship between Sounding Reference Signals (SRS) and user terminal panels is not clearly defined, leading to inappropriate scheduling and potential deterioration in communication throughput and quality due to unclear panel usage.
Innovation Solution
A terminal determines the correspondence between SRS resources and panels, and transmits reports to the base station using specific methods such as CSI reports or MAC CEs to clarify panel usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the relationship between SRS and panel is not clearly defined, then the system maintains simplicity in configuration, but the base station cannot appropriately determine panel usage leading to inappropriate scheduling and deterioration in communication throughput and quality
Solution Approach 1:
The terminal determines the panel correspondence relationship with SRS resources in advance through control sections that identify which panel transmits each SRS resource. This predetermined mapping information is then reported to the base station, allowing the base station to perform appropriate scheduling decisions without requiring complex real-time determination mechanisms.
Solution Approach 2:
The terminal reports the determined panel correspondence relationship back to the base station through uplink signaling. This feedback mechanism enables the base station to acquire accurate panel usage information and make informed scheduling decisions, resolving the information asymmetry that would otherwise lead to inappropriate scheduling.
2Reliability
If panel correspondence information is reported, then appropriate scheduling can be performed, but communication overhead increases due to additional reporting requirements
Solution Approach 1:
The patent reports panel correspondence information selectively rather than universally. The control section determines panel correspondence for SRS resources that require it, and only this specific information is reported to the base station. This localized reporting approach provides necessary scheduling accuracy while minimizing unnecessary communication overhead.
3Adaptability or versatility
If multiple panels are used for SRS transmission, then beam management and CSI measurement capabilities are enhanced, but the complexity of managing multiple panels and their correspondence increases
Solution Approach 1:
The patent divides the SRS transmission resources into distinct segments associated with different panels. Each SRS resource is explicitly mapped to a specific panel through the control section's determination process. This segmentation allows the system to manage multiple panels independently while maintaining clear correspondence relationships, reducing the overall complexity of multi-panel management.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a control section that determines a panel corresponding to a reference signal for measurement (Sounding Reference Signal (SRS)) resource set or an SRS resource, and a transmitting section that performs SRS transmission in the SRS resource set or the SRS resource by using the determined panel and transmits a report for the determined panel corresponding to the SRS resource set or the SRS resource. According to one aspect of the present disclosure, it is possible to appropriately determine a correspondence relationship between a panel and an SRS.