D2D Multi-Panel Power Control for Beam Setting Accuracy
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Solution Overview
Problem
In wireless communication systems, accurately determining the optimal transmit power and spatial settings for inter-device transmissions is challenging due to differing reference signal received power values and spatial settings, leading to misidentification of optimal beam or spatial settings.
Innovation Solution
A method and device for determining a greater power value based on reference signal received power values from different spatial settings, enabling accurate inter-device transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple spatial settings are used for inter-device transmission, then transmission diversity and reliability are improved, but power control accuracy deteriorates due to differing reference signal received power values
Solution Approach 1:
The patent applies parameter changes by selecting different reference signal received power values corresponding to different spatial settings when determining transmit power. Instead of using a single fixed reference, the system dynamically selects the appropriate reference power value based on the active spatial setting, thereby maintaining accurate power control across multiple spatial configurations.
Solution Approach 2:
The patent implements dynamics by making the power control mechanism adaptive to changing spatial settings. The system dynamically adjusts which reference signal received power value is used based on the current spatial configuration, enabling accurate power control that evolves with the transmission environment rather than relying on a static reference.
2Productivity
If reference signal received power values from different spatial settings are used, then transmission optimization is improved, but misidentification of optimal beam or spatial settings occurs
Solution Approach 1:
The patent applies feedback by using the selected reference signal received power value to determine transmit power, which then feeds back into the reception quality measurement. This feedback loop ensures that the system uses consistent reference points for both power determination and spatial setting evaluation, preventing misidentification while optimizing transmission efficiency.
Solution Approach 2:
The patent segments the power control process by handling each spatial setting's reference signal received power value separately and selectively. Instead of mixing all reference values, the system segments and processes them according to their corresponding spatial settings, maintaining clear identification of optimal beams while still benefiting from multiple spatial options.
Data Source
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AI summary
Disclosed is a method for operating a first device (100) in a wireless communication system. The method may comprise the steps of: determining, as a transmission power value, the larger value among a first power value determined on the basis of a first reference signal reception power value related to a first spatial setting and a second power value determined on the basis of a second reference signal reception power value related to a second spatial setting; performing a first device-to-device transmission on the basis of the transmission power value and the first spatial setting; and performing a second device-to-device transmission on the basis of the transmission power value and the second spatial setting.