Power Control Assistance for IAB Node Multiplexing Interference
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Solution Overview
Problem
In integrated access and backhaul (IAB) networks, there is a lack of effective solutions for power control assistance to enable efficient power management between nodes, particularly in scenarios where IAB nodes operate in multiplexing manners like time-division, frequency-division, or space-division multiplexing, leading to interference and suboptimal transmission performance.
Innovation Solution
The method involves determining and transmitting power control assistance information, including expected transmit power spectral density and power headroom, from a first node to a second node to assist in performing accurate power control, thereby reducing interference and improving communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IAB nodes operate in multiplexing manners (time-division, frequency-division, or space-division multiplexing), then the network can support multi-hop and provide access to terminals, but power control becomes complicated and interference occurs leading to suboptimal transmission performance
Solution Approach 1:
The patent introduces a parent node as an intermediary to perform power control on the MT of the IAB node. The parent node receives power control assistance information from the IAB node and uses this information to adjust the transmit power of the MT, thereby simplifying the power control mechanism while maintaining adaptability to different multiplexing scenarios.
Solution Approach 2:
The patent implements a feedback mechanism where the IAB node provides power control assistance information (such as expected transmit power spectral density and power headroom) to the parent node. The parent node uses this feedback to make informed power control decisions, enabling effective power management in complex multiplexing environments.
2Productivity
If IAB nodes operate in multiplexing manners, then the network can support multi-hop, but interference occurs leading to suboptimal transmission performance
Solution Approach 1:
The feedback mechanism allows the parent node to receive real-time power control assistance information from the IAB node and adjust transmit power accordingly. This feedback loop enables the system to mitigate interference dynamically, thereby improving transmission performance in multi-hop scenarios.
Solution Approach 2:
The patent changes the transmit power parameter of the IAB node's MT based on the multiplexing scenario and interference conditions. By adjusting the expected transmit power spectral density and power headroom parameters, the system optimizes transmission performance while reducing interference in complex network environments.
Data Source
AI summary
Provided are an information transmission method and apparatus, a node, and a storage medium. The information transmission method is applied to a first node and includes: determining power control assistance information (S110); and transmitting the power control assistance information (S120); where the power control assistance information includes first power control assistance information, and the first power control assistance information includes an expected transmit power spectral density.