IAB Node Resource Configuration for Interference Reduction

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing overlapped resources in the time domain within integrated access and backhaul links (IAB) systems, which affects communication efficiency.

Innovation Solution

A method for processing overlapped resources in the time domain is proposed for IAB nodes, allowing for more efficient communication by optimizing resource configuration and operation between the IAB node's DU and MT.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If resource configuration is optimized for IAB node operation, then communication efficiency is improved, but resource overlap between uplink and downlink symbols occurs causing interference

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidinterference

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The resource configuration is segmented into distinct uplink and downlink symbol periods, with guard periods inserted between them. This segmentation prevents overlap between uplink and downlink transmissions, eliminating interference while maintaining efficient resource utilization in IAB nodes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Guard periods are preliminarily configured between uplink and downlink symbol periods to prevent potential interference before it occurs. This preliminary action ensures that even if timing variations occur, the uplink and downlink resources will not overlap, thus maintaining communication efficiency without interference.

Inventive Principle:

Principle #10Preliminary action

2Quantity of substance

If time domain resources are densely packed to increase capacity, then resource utilization is improved, but overlapping between uplink and downlink symbols increases interference

Engineering Contradiction:

Improveresource utilizationVSAvoidinterference

Core Design Contradiction:

Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The time domain resources are segmented into discrete uplink and downlink symbol periods with clear boundaries. Guard periods are inserted between these segments to prevent overlap, allowing dense packing of resources while maintaining separation between uplink and downlink transmissions to avoid interference.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different local qualities are assigned to different time periods: uplink symbol periods are optimized for uplink transmission, downlink symbol periods for downlink transmission, and guard periods for transition. This local quality differentiation allows maximum resource utilization in each period while preventing interference through proper isolation.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12342327B2Method for configuring resource of IAB node, and device using method

Publication Date: 2025.06.24 LG ELECTRONICS INC

AI summary

The present disclosure relates to a method for configuring a resource of an IAB node, and a device using the method.