Uplink Power Control via Offset Value for 5G Interference
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Solution Overview
Problem
In 5G communication systems, especially during early deployment of New Radio (NR), achieving full coverage is challenging due to limited spectrum availability below 6 GHz, leading to interference issues when terminal devices operate on multiple frequency bands, which reduces data transmission success rates.
Innovation Solution
A method where a terminal device receives an offset value from a network device to adjust its uplink transmission power, ensuring it operates below its maximum capacity to minimize interference, thereby improving data transmission success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminal device operates on multiple carriers in different frequency bands to improve system throughput, then data transmission capacity is improved, but uplink signals interfere with downlink received signals reducing transmission success rate
Solution Approach 1:
The patent changes the transmission power parameter by introducing a power offset value that adjusts the uplink transmission power level. The terminal device determines the first transmission power based on this offset value, effectively controlling the power level to prevent interference while maintaining communication performance across multiple carriers
Solution Approach 2:
The network device sends the power offset value to the terminal device based on interference conditions. This feedback mechanism allows the network to dynamically adjust the terminal's transmission power to maintain optimal performance while preventing uplink-downlink interference in dual connection scenarios
2Reliability
If terminal device increases transmission power to improve signal quality, then communication reliability is improved, but interference with other carriers increases
Solution Approach 1:
The patent introduces a power offset value as a control parameter that adjusts the transmission power level. By setting the first transmission power as less than or equal to the second transmission power (determined by anti-interference ability), the system maintains reliable communication while preventing harmful interference to other carriers
Solution Approach 2:
Instead of using full transmission power, the patent applies partial action by limiting the transmission power to the first transmission power which is controlled to be less than or equal to the anti-interference capability threshold, thereby achieving sufficient communication reliability without excessive power that would cause interference
Data Source
AI summary
Provided are a data transmission method, a terminal device, and a network device. The method may include: a terminal device receives a first offset value sent by a network device; the terminal device determines, according to the first offset value, a first transmission power of uplink data of the terminal device, the first transmission power being less than or equal to a second transmission power, the second transmission power being determined by the terminal device according to the anti-interference ability thereof; and the terminal device sends the uplink data to the network device according to the first transmission power.