CSI Report Resource Indicator Positioning for Multi-Panel Beam Management
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Solution Overview
Problem
In next-generation mobile communication systems, specifically in Rel-15 and Rel-16 NR, the enhancement of beam management for user terminals with multiple panels and transmission/reception points is hindered by the lack of clarity on how to configure CSI reports, leading to suboptimal communication throughput.
Innovation Solution
A terminal is equipped with a control section that determines the position of resource indicators in a CSI report based on whether signals can be simultaneously received by multiple panels, allowing for appropriate inclusion of measurement results from each panel in the report, and a transmitting section that sends this CSI report to the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If group based beam report is configured enabled in Rel-15 and Rel-16 NR, then beam management is simplified, but the ability to report beam indices for multi-panel and multi-TRP scenarios is limited to only two different beam indices
Solution Approach 1:
The patent segments the beam reporting capability by introducing separate reporting mechanisms for different groups. Specifically, it divides the beam indices into multiple groups (first group and second group) and enables independent reporting for each group, allowing the system to handle multi-panel and multi-TRP scenarios while maintaining the simplified group-based structure.
2Adaptability or versatility
If beam management enhancements are made for multi-panel and multi-TRP, then reporting capability is improved, but CSI report configuration becomes unclear and complex
Solution Approach 1:
The patent introduces dynamic configuration mechanisms where the network can flexibly configure which groups are reported and how many beam indices per group. The UE adapts its reporting behavior based on received configuration parameters, allowing the system to scale complexity according to actual needs rather than being fixed at maximum complexity.
Solution Approach 2:
The patent changes key parameters of the CSI report configuration, specifically allowing configurable numbers of beam indices per group (not fixed at two), configurable groups to report, and configurable reporting modes. These parameter changes enable the system to adapt to different deployment scenarios without requiring fundamentally different configuration structures.
3Productivity
If CSI report configuration is not clarified for beam management enhancements, then implementation flexibility is maintained, but communication throughput deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the UE reports channel state information including beam quality metrics for multiple groups. The network uses this feedback to make informed decisions about resource allocation, beam selection, and configuration adjustments, creating a closed-loop system that optimizes throughput based on actual channel conditions.
Data Source
AI summary
A terminal according to an aspect of the present disclosure includes a control section that determines, for a group, regarding a channel state information (CSI) report including a plurality of resource indicators and measurement results respectively corresponding to the plurality of resource indicators, at which position in the CSI report each of the resource indicators regarding which panel is to be included, based on whether or not signals for the plurality of resource indicators corresponding to a same group can be simultaneously received and the measurement results for each panel, and a transmitting section that transmits the CSI report. According to an aspect of the present disclosure, a CSI report related to a group based beam report can be suitably used.