CSI Report Configuration for Multi-TRP Spatial Property Alignment
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Solution Overview
Problem
The existing CSI report configuration solutions do not account for CSI resources with different spatial properties in multi-TRP/multi-panel scenarios, leading to inconsistent understanding between terminal devices and network devices, which affects transmission reliability and throughput.
Innovation Solution
A CSI report configuration method that includes sending a CSI report configuration and at least one CSI resource configuration to indicate CSI resources and reports for multiple TRPs, allowing for CSI reports to be determined based on quasi-co-located CSI resources with different spatial properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing 3GPP Rel-15 protocol is used for CSI report configuration, then the protocol structure is simple and easy to implement, but it cannot handle CSI resources with different spatial properties (multi-TRP/multi-panel scenarios)
Solution Approach 1:
The patent segments the CSI report configuration into multiple independent components: CSI report configuration, CSI resource configuration, and TRP identifier. This segmentation allows the system to handle multi-TRP/multi-panel scenarios by independently configuring each TRP's CSI resources while maintaining a manageable overall structure.
Solution Approach 2:
The patent introduces a new dimension of configuration by adding TRP identifier and spatial property parameters to the existing CSI report configuration framework. This dimensional extension enables the system to distinguish and configure different TRPs and their associated spatial properties without fundamentally redesigning the entire protocol.
2Reliability
If CSI report configuration is not properly implemented for different spatial properties, then the configuration process is simple, but transmission reliability and throughput performance deteriorate
Solution Approach 1:
The patent implements feedback mechanisms where the terminal device reports CSI measurements for different TRPs and spatial properties back to the network device. This feedback loop enables the network to adjust transmission parameters based on actual channel conditions, improving transmission reliability while maintaining manageable configuration complexity through automated measurements.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting CSI report configuration parameters based on detected spatial properties and TRP identifiers. The system can modify reporting granularity, measurement resources, and configuration details according to the specific transmission scenario, thereby optimizing reliability without requiring overly complex static configurations.
3Productivity
If multi-TRP/multi-panel CSI resources are configured, then transmission throughput performance improves, but the understanding consistency between terminal and network devices becomes difficult to maintain
Solution Approach 1:
The patent applies preliminary action by having the network device pre-configure TRP identifiers, spatial properties, and CSI resource mappings before data transmission begins. This preliminary configuration ensures that both terminal and network devices have consistent understanding of the multi-TRP structure, preventing information loss during transmission while enabling high throughput performance.
Solution Approach 2:
The patent introduces TRP identifier and spatial property parameters as intermediary elements that mediate between the physical layer transmission and the higher layer configuration. These intermediaries serve as standardized references that ensure consistent understanding between terminal and network devices, preventing misinterpretation of transmission parameters while maintaining the benefits of multi-TRP/multi-panel throughput enhancement.
Data Source
AI summary
A channel state information (CSI) report configuration method, a network device, and a non-transitory computer readable storage medium thereof are provided. The method includes sending a CSI report configuration and at least one CSI resource configuration. The CSI resource configuration indicates a CSI resource set that includes multiple CSI resource subsets. The multiple CSI resource subsets correspond to quasi co-located (QCL) CSI resources with different spatial properties respectively. The method further includes receiving a CSI report including report information determined based on the multiple CSI resource subsets.