CSI Report Segmentation for Multi-TRP Beam Management
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Solution Overview
Problem
Current communication technologies lack a specific technical scheme for channel state information (CSI) reporting in multi-transmission and reception point (TRP) scenarios, particularly in 3GPP new radio (NR) R17, which hinders effective beam management and optimization.
Innovation Solution
A reporting method and equipment that receive network configuration information including CSI report configuration, allowing for the measurement and reporting of CSI results for one or more beam pairs/groups, enabling dynamic adjustment of the number of beam pairs/groups in a CSI report, and associating with multiple resource sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one CSI report only contains one beam group and one CSI associates with one resource set, then the protocol structure is simple, but the beam management capability in multi-TRP scenarios is limited
Solution Approach 1:
The patent divides the CSI report into multiple independent parts, where each part contains a beam group and associated resource sets. This segmentation allows the terminal to report multiple beam groups in separate CSI reports, enabling multi-TRP beam management while maintaining a simple and manageable report structure for each individual part.
Solution Approach 2:
The patent introduces dynamic configuration where the network can flexibly configure the number of beam groups and resource sets in each CSI report part. The terminal dynamically adjusts the CSI report content based on network configuration, allowing adaptable beam management in multi-TRP scenarios without fixing a complex predetermined structure.
2Adaptability or versatility
If the CSI report includes measurement results for multiple beam pairs/groups, then the beam management is enhanced, but the resource overhead increases
Solution Approach 1:
By segmenting the CSI report into multiple parts, each containing a subset of beam group measurement results, the patent reduces the size of each individual report while maintaining comprehensive coverage. This segmentation approach manages resource overhead effectively by distributing information across multiple manageable units rather than one large report.
Solution Approach 2:
The patent allows the terminal to report only the necessary beam groups and resource sets based on actual measurement needs and network configuration. This partial action principle ensures that the terminal does not unnecessarily report all possible beam measurements, thereby reducing resource overhead while still providing sufficient information for effective beam management.
3Loss of information
If the terminal reports CSI for multiple beam pairs/groups, then the network obtains comprehensive channel state information, but the terminal processing complexity increases
Solution Approach 1:
The patent segments the CSI reporting task into multiple independent parts, where each part handles a specific beam group and associated resource sets. This segmentation divides the processing workload for the terminal, making it more manageable while ensuring comprehensive channel state information collection across all beam groups through multiple coordinated reports.
Data Source
AI summary
A reporting method, an equipment, and a medium are provided in the disclosure. The method includes: receiving network configuration information, where the network configuration information includes channel state information (CSI) report configuration information; obtaining a CSI report according to the CSI report configuration information; and reporting the CSI report according to the network configuration information, where the CSI report includes measurement results for one or more beam pairs/groups.