IAB Beam Indication for Simultaneous MT-DU Operation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing beam operations between IAB nodes and parent nodes, particularly in scenarios requiring simultaneous operation and resource multiplexing, leading to issues like delayed scheduling and interference.
Innovation Solution
A method and apparatus are provided to transmit beam indication information, including TX and RX beam information, from an IAB node to a parent node, enabling dynamic beam management and resource allocation for simultaneous operation between the mobile terminal and the DU.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the IAB node uses existing beam management methods, then the system maintains basic operational capability, but the beam direction information is inaccurate preventing orthogonal beam usage and smooth simultaneous operation
Solution Approach 1:
The IAB node reports beam indication information (including TX and RX beam resources) to the parent node, creating a feedback loop that enables the parent node to accurately determine suitable beam pairs for orthogonal beam usage, thereby resolving the inaccuracy in beam direction information while maintaining simultaneous operation capability
2Ease of operation
If the IAB node reports detailed beam indication information to the parent node, then the parent node can properly set beam information for smooth simultaneous operation, but the signaling overhead and system complexity increase
Solution Approach 1:
The IAB node proactively reports beam indication information including TX and RX beam resources before simultaneous operation begins, allowing the parent node to pre-determine suitable beam pairs. This preliminary action enables smooth simultaneous operation without real-time complex coordination, reducing operational complexity
Data Source
AI summary
The present specification provides a method performed by a node for transmitting beam informing information in a wireless communication system, and an apparatus therefor, the method comprising: performing an initial access with a parent node; determining the beam informing information; and transmitting, to the parent node, the beam informing information, wherein the beam informing information includes at least one of transmission (TX) beam information and reception (RX) beam information which is recommended for mobile terminal (MT) operation of the node.