V2X PUSCH Power Control via Resource Occupation Feedback
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Solution Overview
Problem
In 5G communication systems, there is a need for efficient power control methods to ensure reliable transmission of high-priority data on physical uplink shared channels (PUSCH) while managing resource occupation by both high-priority and low-priority data, particularly in scenarios where high-priority data overlaps with or replaces low-priority data transmission.
Innovation Solution
A power control method that involves receiving resource occupation indication information to determine the resource occupation situation of the PUSCH for high-priority data, and adjusting the transmission power accordingly to ensure reliable high-priority data transmission without wasting power, by using different power control parameter sets based on whether the resources are idle or occupied by low-priority data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission power is increased to ensure reliable high-priority data transmission, then transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on resource occupation status. When high-priority data occupies resources previously used by low-priority data, the system changes power parameters to compensate for potential interference, ensuring reliable transmission while avoiding excessive power consumption when resources are idle
Solution Approach 2:
The system uses resource occupation indication information as feedback to adjust transmission power. The terminal determines whether resources are occupied by low-priority data and adjusts power levels accordingly, creating a closed-loop control that optimizes power consumption while maintaining transmission reliability
2Use of energy by moving object
If transmission power is reduced to save power, then power consumption decreases, but transmission reliability deteriorates
Solution Approach 1:
The patent implements dynamic power parameter adjustment based on resource occupation conditions. When resources are determined to be idle, the system reduces transmission power to save energy. When resources are occupied by low-priority data, power parameters are increased to maintain reliable high-priority data transmission
Solution Approach 2:
The system receives resource occupation indication information and uses it as feedback to control transmission power levels. This feedback mechanism ensures power is only increased when necessary, optimizing the balance between power consumption and transmission reliability
3Measurement precision
If resource occupation indication information is processed to determine power levels, then power control precision is improved, but processing complexity increases
Solution Approach 1:
The network device pre-processes and sends resource occupation indication information to the terminal before high-priority data transmission. This preliminary action allows the terminal to determine resource status in advance and adjust power parameters efficiently, reducing processing complexity during actual transmission while maintaining precision
Data Source
AI summary
A power control method and apparatus are provided in the present application. The power control method includes: receiving resource occupation indication information, where the resource occupation indication information is used to indicate resource occupation situation of second priority data on a PUSCH for transmitting first priority data; determining the resource occupation situation of the PUSCH for transmitting the first priority data according to the resource occupation indication information; and determining power of the PUSCH for transmitting the first priority data according to the resource occupation situation of the PUSCH for transmitting the first priority data.