Radio Node Resource Configuration for 5G Backhaul

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Solution Overview

Problem

Inter-radio-node resource configuration in future radio communication systems, such as 5G, has not been comprehensively studied, leading to a need for appropriate resource management techniques.

Innovation Solution

The implementation of a method for inter-radio-node resource configuration using partially modified TDD-UL-DL-SlotConfig information, allowing for flexible configuration of resource types as 'Hard', 'Soft', or 'NA' on a slot-by-slot basis, to manage Downlink, Uplink, and Flexible resources effectively while preventing increased signaling overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If comprehensive inter-radio-node resource configuration is implemented, then resource management flexibility is improved, but signaling overhead increases

Engineering Contradiction:

Improveresource configuration flexibilityVSAvoidsignaling overhead

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The resource configuration is segmented into different types (DL, UL, FL, NA) that can be independently configured. Each resource type is handled separately through specific information elements, allowing flexible configuration without requiring complete reconfiguration of all resources, thus reducing signaling overhead while maintaining adaptability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different resource types are assigned different qualities and configurations based on local needs. Downlink resources, uplink resources, flexible resources, and unavailable resources are configured with specific properties appropriate to their function, allowing optimized resource management without uniform signaling for all resources.

Inventive Principle:

Principle #3Local quality

2Manufacturing precision

If resource types are configured for each slot, then resource management precision is improved, but device complexity increases

Engineering Contradiction:

Improveresource allocation precisionVSAvoidconfiguration complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The resource configuration is made dynamic through slot-specific resource type assignments. Each slot can have different resource type configurations (DL, UL, FL, or NA) based on immediate needs, allowing precise resource allocation while the system adapts to changing conditions without requiring complex static pre-planning.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Resource type parameters are changed on a per-slot basis to match varying communication requirements. The system can switch between different resource type configurations dynamically, enabling precise resource management while using standardized parameter structures to keep implementation complexity manageable.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentEP3902345B1Radio node and radio communication method

Publication Date: 2024.10.30 NTT DOCOMO INC

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AI summary

A radio node includes a reception section that receives, over a first wireless backhaul link, configuration information on a resource for at least one of a second wireless backhaul link and a radio access link, and a control section that controls usage of the resource based on the configuration information that includes configuration on a use for the resource being different from a use for the resource in resource configuration for the first wireless backhaul link.