Single-RF IAB Node Power Sharing Between DU and MT Units
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Solution Overview
Problem
In IAB nodes with only one radio frequency unit, there is a conflict between the transmit powers of the DU and the MT unit, leading to reduced communication performance.
Innovation Solution
A method for determining and configuring transmit power for both the DU and MT units such that their combined power does not exceed the maximum power of the IAB node, ensuring power sharing and avoiding conflicts, thereby improving communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the IAB node uses a single radio frequency unit for both DU and MT units, then device complexity is reduced, but transmit power conflict occurs between DU and MT units
Solution Approach 1:
The patent implements dynamic power allocation where the power allocation module continuously adjusts the transmit powers of DU and MT units based on real-time communication conditions. The system dynamically determines power configurations to ensure that the sum of DU transmit power and MT transmit power does not exceed the maximum power of the single radio frequency unit, thereby resolving power conflicts while maintaining system reliability
Solution Approach 2:
The patent changes the power allocation parameters by introducing a power allocation module that determines specific power configurations for DU and MT units. The system modifies transmit power parameters adaptively based on communication requirements, ensuring optimal power distribution between the two units sharing the single radio frequency resource
2Productivity
If the IAB node allocates maximum power to one unit (DU or MT), then communication performance of that unit is improved, but the other unit's transmission is limited
Solution Approach 1:
The patent applies partial action by allocating power to DU and MT units in proportion to their immediate communication needs rather than assigning maximum power to one unit exclusively. The power allocation module determines appropriate power levels for each unit based on current traffic demands, ensuring both units can transmit effectively without exceeding the total power constraint
Solution Approach 2:
The system dynamically adjusts power allocation between DU and MT units based on real-time communication conditions. When DU requires more power for downlink transmission, the system allocates相应 power to DU and reduces MT power, and vice versa. This dynamic adaptation ensures optimal communication performance for both units while utilizing the single radio frequency unit's total power capacity
Data Source
AI summary
Embodiments of this application disclose a transmit power configuration method, an IAB node, a base station, and a storage medium, and relate to the field of communications technologies. The method is applied to an integrated access and backhaul IAB node, and the IAB node includes a distributed unit DU and a mobile termination MT unit. The method includes: determining a first transmit power configuration for the DU and/or a second transmit power configuration for the MT unit; and controlling the DU to transmit information at a transmit power indicated by the first transmit power configuration, and/or the MT unit to transmit information at a transmit power indicated by the second transmit power configuration, where a sum of the transmit power of the DU and the transmit power of the MT unit is less than or equal to a maximum transmit power of the IAB node.