CSI Reporting With Shared IMR Mapping for Lower Configuration Overhead

Solution Overview

Problem

Current CSI reporting settings require a same quantity of interference measurement resources (IMRs) to be included with channel measurement resources (CMRs), leading to significant configuration overheads.

Innovation Solution

Implementing mappings between multiple groups of CMRs and IMRs, allowing for reduced IMR configuration overheads by enabling one-to-one or multiple-to-one mappings, and utilizing QCL information and TCI states to determine CSI reports.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a same quantity of interference measurement resources (IMRs) is included with channel measurement resources (CMRs) to form measurement assumption conditions, then measurement accuracy is improved, but configuration overhead increases

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidconfiguration overhead

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent merges multiple CMR groups with a single IMR group to form composite measurement assumption conditions. Instead of requiring one-to-one mapping between CMR and IMR groups, the invention combines multiple CMR groups (each potentially requiring separate IMR groups in conventional approaches) and associates them with a shared IMR group, thereby reducing the total number of IMR configurations while maintaining measurement validity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent makes a single IMR group serve multiple functions by enabling it to be shared across multiple CMR groups. The IMR group acts universally for measuring interference in conjunction with different CMR groups, allowing the same interference measurement resources to support multiple channel measurement scenarios without requiring dedicated IMR groups for each CMR group.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple groups of CMRs are mapped to multiple groups of IMRs, then CSI reporting accuracy is improved, but resource utilization efficiency deteriorates

Engineering Contradiction:

ImproveCSI reporting accuracyVSAvoidresource utilization efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent merges multiple CMR groups with a single IMR group to form composite measurement assumption conditions. Instead of requiring one-to-one mapping between CMR and IMR groups, the invention combines multiple CMR groups (each potentially requiring separate IMR groups in conventional approaches) and associates them with a shared IMR group, thereby reducing the total number of IMR configurations while maintaining measurement validity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent makes a single IMR group serve multiple functions by enabling it to be shared across multiple CMR groups. The IMR group acts universally for measuring interference in conjunction with different CMR groups, allowing the same interference measurement resources to support multiple channel measurement scenarios without requiring dedicated IMR groups for each CMR group.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12501301B2Method and apparatus for determining channel state information, method and apparatus for determining reporting setting, and related device

Publication Date: 2025.12.16 VIVO MOBILE COMM CO LTD

AI summary

A method and apparatus for determining channel state information, a method and apparatus for determining a reporting setting, and a related device, and pertains to the field of communication technologies. The method for determining channel state information includes: determining a first channel state information CSI report, where the first CSI report is determined according to at least one of the following mappings: a mapping between multiple groups of channel measurement resources CMRs and multiple groups of interference measurement resources IMRs; or a mapping between multiple groups of CMRs and one group of IMRs, where each group of CMRs includes one or more CMRs, and each group of IMRs includes one or more IMRs.