Uplink Power Allocation Across Antenna Port Configurations
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Solution Overview
Problem
The existing methods for determining uplink transmission power in wireless communication systems are limited and cannot effectively apply to various resource configuration scenarios, particularly when the number of antenna ports for channel state information exceeds the maximum supported by the terminal.
Innovation Solution
An uplink transmission method that determines transmission power based on configuration information of sounding reference signal resources and indication information from the network device, allowing for flexible power allocation across antenna ports to support full power transmission in diverse scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal uses a fixed power allocation method based on predefined rules, then the implementation is simple and low-cost, but the method cannot adapt to various resource configuration scenarios particularly when the number of antenna ports exceeds the maximum supported by the terminal
Solution Approach 1:
The patent implements dynamic power allocation by allowing the terminal to determine transmission power based on the actual number of antenna ports configured by the network device. The power allocation ratio is dynamically adjusted according to the configuration information of sounding reference signal resources, enabling the system to adapt to different resource scenarios without requiring complex predefined rules for each case
Solution Approach 2:
The patent changes the power allocation parameter (power ratio) based on the number of antenna ports. When the configured antenna ports differ from the maximum supported ports, the power allocation ratio is adjusted accordingly to ensure optimal power distribution. This parameter change approach allows the simple power allocation method to handle various configuration scenarios effectively
2Use of energy by moving object
If the terminal scales power evenly among all antenna ports, then the power distribution is simple and uniform, but this approach does not optimize power utilization when the actual number of transmitted ports is less than the maximum supported ports
Solution Approach 1:
The patent applies local quality by allocating power differently to different antenna ports based on their actual usage. Instead of uniform power distribution, the power allocation ratio is adjusted locally for each port according to the configured number of antenna ports versus the maximum supported ports, optimizing power utilization for the specific transmission scenario
Solution Approach 2:
The patent modifies the power allocation parameter dynamically based on the ratio of configured antenna ports to maximum supported ports. This parameter change enables the system to achieve optimal power utilization efficiency while maintaining relatively simple power calculation through a clear mathematical relationship
Data Source
AI summary
The present disclosure provides an uplink transmission method, a terminal and a network device. The method includes: receiving uplink scheduling information of uplink; determining transmission power of the uplink signal according to configuration information of a target resource or first indication information from a network device, wherein the target resource includes a sounding reference signal resource configured by the network device for obtaining channel state information of uplink, and the first indication information is used to indicate a mode of determining the transmission power of the uplink signal; transmitting the uplink signal according to the transmission power and the uplink scheduling information.