Terminal Reference Signal Configuration Control for Resource Efficiency

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Solution Overview

Problem

Current radio communication technologies face challenges in efficiently utilizing reference signal (RS) resources, which is crucial for achieving high communication throughput and quality, especially with the integration of artificial intelligence (AI) and machine learning (ML) for network control and management.

Innovation Solution

A terminal and base station system that includes a receiving section for receiving reference signal configurations and a control section that dynamically controls the application of these configurations based on specific conditions and information related to the reference signal, optimizing RS resource allocation and use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If reference signal resources are reduced to improve resource efficiency, then resource utilization improves, but communication throughput and quality may deteriorate

Engineering Contradiction:
Improveresource efficiencyVSAvoidcommunication quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies dynamics by enabling the terminal to dynamically select between multiple reference signal configurations (first configuration with more resources, second configuration with fewer resources) based on real-time conditions such as AI/ML learning completion status and channel state. This dynamic adaptation allows the system to optimize resource efficiency while maintaining communication quality when needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by modifying reference signal resource allocation parameters based on different operating conditions. When AI/ML learning is completed or channel conditions are good, the system switches to a configuration with reduced reference signal resources. When learning is not completed or conditions deteriorate, the system switches to a configuration with more reference signal resources, thereby balancing resource efficiency and communication quality.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If reference signal resources are reduced using AI/ML, then resource efficiency improves, but implementation complexity increases due to undefined details

Engineering Contradiction:
Improveresource efficiencyVSAvoidimplementation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the reference signal resource allocation into distinct configurations (first configuration and second configuration) with different resource levels. The terminal selects the appropriate configuration based on predefined conditions such as AI/ML learning status and channel state, thereby simplifying the implementation by avoiding the need for complex continuous optimization algorithms.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements self-service by enabling the terminal to autonomously select between reference signal configurations based on its own state (AI/ML learning completion status) and received channel state information, without requiring complex centralized control or detailed predefined algorithms for every scenario.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If multiple reference signal configurations are maintained for different conditions, then adaptability improves, but device complexity increases

Engineering Contradiction:
Improveconfiguration adaptabilityVSAvoidcontrol complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by creating distinct reference signal configurations for different operating conditions (first configuration for when AI/ML learning is not completed or channel conditions are poor, second configuration for when learning is completed or conditions are good). This segmentation allows the system to maintain multiple configurations without requiring complex real-time optimization, as the terminal simply selects from predefined options based on simple condition checks.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250055740A1Terminal, radio communication method, and base station
Publication Date: 2025.02.13 NTT DOCOMO INC
  • US20250055740A1 patent drawing
  • US20250055740A1 patent drawing
  • US20250055740A1 patent drawing

AI summary

A terminal according to one aspect of the present disclosure includes a receiving section that receives one or more reference signal configurations, and a control section that controls, based on at least one of information related to a reference signal and a specific condition, application of at least one reference signal configuration of the reference signal configurations. According to one aspect of the present disclosure, it is possible to implement suitable RS resource use.