CSI Beam Reporting With RSRQ and SINR for Interference-Aware Selection

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Solution Overview

Problem

Legacy CSI reports in wireless communication systems only include RSRP for beam reporting, neglecting interference factors, leading to inaccurate beam selection by network devices.

Innovation Solution

Incorporate RSRQ and SINR measurements into CSI reports to consider interference, enabling network devices to select the most appropriate beam for terminal devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If only RSRP is included in CSI reports for beam reporting, then the report structure is simple and easy to process, but interference factors are neglected leading to inaccurate beam selection

Engineering Contradiction:

Improvebeam selection accuracyVSAvoidCSI report structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple measurement quantities (RSRP, RSRQ, SINR) into a single CSI report structure. The network device configures the terminal to report multiple quantities simultaneously, combining beam quality information (RSRP) with interference information (RSRQ, SINR) to achieve accurate beam selection while maintaining report integration.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the parameter composition of CSI reports from a single RSRP value to multiple measurement quantities (RSRP, RSRQ, SINR). The network device dynamically configures which parameters to report based on communication conditions, allowing flexible adjustment of report content to balance accuracy and complexity.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If multiple measurement quantities (RSRP, RSRQ, SINR) are reported in CSI reports, then interference is considered for accurate beam selection, but the reporting complexity increases

Engineering Contradiction:

Improvebeam selection reliabilityVSAvoidreporting process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements dynamic configuration of CSI report parameters. The network device adjusts which measurement quantities are reported based on communication conditions, terminal capabilities, and network requirements. This dynamic approach allows the system to maintain high reliability when needed while reducing complexity when conditions permit.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies different measurement quantities to different reporting scenarios. RSRP is used for basic beam quality assessment, while RSRQ and SINR are selectively applied when interference conditions require more detailed analysis. This localized application of measurement quantities optimizes the balance between reliability and complexity for specific situations.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12407481B2Method for reporting CSI report, terminal device, and network device

Publication Date: 2025.09.02 VIVO MOBILE COMM CO LTD

AI summary

A method for reporting a CSI report, a terminal device, and a network device used for beam reporting. The method includes: receiving first information from a network device, where the first information is used to indicate any one of the following measurement quantities: reference signal received quality RSRQ and signal to interference plus noise ratio SINR; or the first information is used to indicate at least two of the following measurement quantities: reference signal received power RSRP, RSRQ, and SINR; and reporting a CSI report to the network device according to the first information, where the CSI report includes a measurement quantity indicated by the first information.