IAB Node FDD Resource Configuration for Simultaneous MT and DU Operation
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Solution Overview
Problem
Existing IAB systems face inefficiencies and resource waste due to the lack of defined simultaneous operations between transmission/reception directions in Frequency Division Duplex (FDD) mode, leading to suboptimal utilization of radio resources.
Innovation Solution
A method and apparatus for an IAB node in an FDD-supported wireless communication system that allows simultaneous performance of MT reception and DU reception, and MT transmission and DU transmission operations, while preventing simultaneous MT transmission and DU reception, by configuring distinct resource configurations for each operation based on multiplexing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If simultaneous MT reception and DU reception operations are supported, then resource utilization efficiency is improved, but device complexity increases
Solution Approach 1:
The patent segments the IAB node operations into distinct MT (Mobile Terminal) and DU (Distributed Unit) functional modules, allowing independent configuration and management of reception and transmission resources. This segmentation enables simultaneous MT reception and DU reception operations by allocating separate resource pools to each function, thereby improving resource utilization efficiency while managing device complexity through modular architecture.
2Productivity
If simultaneous MT transmission and DU transmission operations are supported, then throughput is improved, but interference management complexity increases
Solution Approach 1:
The patent divides transmission resources into separate MT transmission and DU transmission resource pools with distinct configuration parameters. This segmentation allows simultaneous MT transmission and DU transmission operations to increase throughput while simplifying interference management through isolated resource allocation and independent power control for each transmission function.
3Productivity
If FDD radio resources are allocated for both MT and DU operations, then communication capacity is improved, but resource waste increases due to undefined simultaneous operations
Solution Approach 1:
The patent implements dynamic resource configuration where the network can flexibly allocate and adjust resource pools for MT and DU operations based on actual traffic demands and operational requirements. This dynamic allocation enables efficient utilization of FDD radio resources for both MT and DU operations while preventing resource waste through adaptive resource management that responds to changing network conditions.
Solution Approach 2:
The patent introduces configurable parameters including resource pool identifiers, frequency domain allocations, time domain configurations, and power control parameters that can be dynamically adjusted. These parameter changes enable optimized resource utilization for simultaneous MT and DU operations in FDD systems, maximizing communication capacity while minimizing resource waste through precise parameter tuning.
Data Source
AI summary
According to various embodiments, disclosed are a method and a device for performing a mobile terminal (MT) operation and a distributed unit (DU) operation by an IAB node in a wireless communication system in which frequency division duplex (FDD) is supported. Disclosed are the method and the device for the method, the method comprising the steps of: receiving first resource configuration information relating to the MT operation and second resource configuration information relating to the DU operation; and performing the MT operation on the basis of the first resource configuration information and performing the DU operation on the basis of the second resource configuration information, wherein, on the basis that there is no report on a multiplexing capability between the MT operation and the DU operation, the first resource configuration information and the second resource configuration information: support simultaneously performing an MT reception operation and a DU reception operation and simultaneously performing an MT transmission operation and a DU transmission operation; and prohibit to support simultaneously performing the MT transmission operation and the DU reception operation and simultaneously performing the MT reception operation and the DU transmission operation.