IAB Node Power Allocation Under a Shared Transmit Limit
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Solution Overview
Problem
In integrated access and backhaul (IAB) nodes with a single radio frequency unit, there is a conflict between the transmit powers of the distributed unit (DU) and mobile termination (MT) unit, leading to reduced communication performance.
Innovation Solution
A method to configure the transmit powers of the DU and MT units to ensure their combined power does not exceed the maximum power of the IAB node, allowing power sharing and avoiding conflicts, thereby enhancing 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 transmit power adjustment by introducing a power coordination mechanism that continuously monitors and adjusts the transmit powers of DU and MT units based on current operational conditions. The network device configures power parameters including maximum power, minimum power, and power step sizes, enabling the IAB node to dynamically allocate power between DU and MT units to avoid conflicts while maintaining communication reliability.
2Productivity
If the IAB node allocates maximum power to both DU and MT units independently, then communication performance of individual units is improved, but total transmit power exceeds the maximum power limit
Solution Approach 1:
The patent changes the power allocation parameters by introducing a coordinated power configuration system. The network device provides power configuration information including maximum transmit power, minimum transmit power, and power adjustment steps. The IAB node uses these parameters to calculate and adjust the transmit powers of DU and MT units, ensuring that the sum of their powers does not exceed the maximum power limit while optimizing communication performance.
3Reliability
If the IAB node shares transmit power between DU and MT units, then transmit power conflict is avoided, but power allocation complexity increases
Solution Approach 1:
The patent introduces a power coordination intermediary mechanism where the network device acts as a mediator to configure power parameters for the IAB node. The network device provides power configuration information through signaling, and the IAB node's processing unit automatically calculates and adjusts power allocation based on these parameters. This intermediary approach simplifies the power sharing complexity by providing clear configuration guidelines and automatic adjustment algorithms.
Data Source
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AI summary
Disclosed are a sending power configuration method, an IAB node, a base station and a storage medium, which relate to the technical field of communications. The method is applied to an integrated access backhaul (IAB) node, the IAB node comprising a distributed unit (DU) and a mobile termination (MT) unit. The method comprises: determining a first sending power configuration of a DU and/or a second sending power configuration of an MT unit; and controlling the DU to send information according to a sending power indicated by the first sending power configuration, and/or the MT unit to send the information according to a sending power indicated by the second sending power configuration, wherein the sum of the sending power of the DU and the sending power of the MT unit is less than or equal to the maximum sending power of an IAB node.