Uplink Transmission Power Allocation via Time Threshold
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Solution Overview
Problem
Existing methods for determining uplink transmission power in 5G NR networks with carrier aggregation do not provide a clear time threshold for power allocation, leading to inefficiencies in prioritizing multiple uplink transmissions with overlapping time domain resources.
Innovation Solution
A method is introduced where a wireless communication device determines its uplink transmission power based on a time threshold, allowing it to consider power requirements for multiple uplink transmissions with different priority levels by specifying a latest time for power determination, thereby enabling more reasonable power allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If priority rules are provided for uplink transmission power allocation, then power allocation guidance is improved, but the ability to execute power allocation in time is worsened
Solution Approach 1:
The patent introduces a time threshold parameter that is determined in advance before uplink transmission occurs. This pre-determined time threshold enables the terminal device to execute power allocation decisions within a specific time window, resolving the issue of when power decisions should be made. The time threshold acts as a preliminary constraint that guides the power allocation process.
2Measurement precision
If the terminal determines power for multiple overlapping uplink transmissions, then power allocation accuracy is improved, but the complexity of power determination is worsened
Solution Approach 1:
The patent changes the parameter space by introducing a time threshold dimension to the power allocation problem. Instead of only considering power requirements and priorities, the solution adds temporal constraints as a new parameter. This transforms the complex optimization problem into a more manageable framework where the time threshold acts as a boundary condition for power determination.
3Device complexity
If no time threshold is specified for power determination, then device complexity is reduced, but the reliability of power allocation is worsened
Solution Approach 1:
The time threshold serves as an intermediary parameter that mediates between the terminal device and the network node. It provides a clear temporal boundary for power determination, enabling reliable power allocation without requiring complex real-time optimization algorithms. The time threshold acts as a simple yet effective mediator that ensures consistent power allocation behavior.
Data Source
AI summary
Methods, apparatus and systems for determining a transmission power for an uplink transmission are disclosed. In one embodiment, a method performed by a wireless communication device is disclosed. The method comprises: determining or applying a transmission power for an uplink transmission of the wireless communication device based at least partially on a time threshold associated with the uplink transmission, wherein the time threshold indicates a latest time the transmission power should be determined; and performing the uplink transmission based on the transmission power to a wireless communication node.