DMRS Power Boosting for Wireless Resource Allocation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently determining transmission power for Demodulation Reference Signals (DMRS) in next-generation mobile communication systems, which require high-speed data transmission, increased connection devices, low latency, and energy efficiency.
Innovation Solution
A method for determining transmission power for DMRS by simultaneously transmitting downlink data and DMRS, with power boosting adjusted based on the number of antenna ports and mapping patterns, allowing efficient multiplexing and power allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If downlink data and DMRS are simultaneously transmitted, then resource utilization is improved, but transmission power allocation becomes complex
Solution Approach 1:
The transmission resources are segmented into different types (data resources and reference signal resources). The base station separately determines transmission power for data and for DMRS, then allocates power to different antenna ports based on the type of signal being transmitted. This segmentation allows simultaneous transmission while maintaining manageable power allocation through structured resource classification.
Solution Approach 2:
The power allocation mechanism is made dynamic by allowing the base station to adjust transmission power based on real-time conditions including the number of antenna ports, mapping patterns, and signal types. The system dynamically determines whether to apply power boosting to DMRS based on current resource allocation, enabling flexible adaptation to varying transmission requirements while maintaining efficient resource utilization.
2Measurement precision
If power boosting is applied to DMRS, then demodulation accuracy is improved, but overall transmission power consumption increases
Solution Approach 1:
Power boosting is applied locally and selectively only to DMRS resources that require enhanced demodulation accuracy, rather than uniformly increasing power across all transmissions. The base station determines which specific antenna ports and resource elements need power boosting based on their mapping patterns and signal requirements, thereby improving demodulation accuracy where needed while minimizing overall power consumption.
Solution Approach 2:
The system changes the power parameter dynamically based on transmission conditions. The base station adjusts the transmission power of DMRS relative to data power based on the number of antenna ports, mapping patterns, and whether simultaneous transmission is occurring. This parameter adjustment allows the system to optimize demodulation accuracy while controlling overall power consumption through conditional power boosting.
3Adaptability or versatility
If the number of antenna ports is increased, then multiplexing capability is improved, but power allocation complexity increases
Solution Approach 1:
Antenna ports are segmented into different groups based on their function and mapping patterns. The base station determines power allocation separately for different port groups, applying power boosting rules specifically to DMRS ports while using different power allocation for data ports. This segmentation of antenna ports into functional groups enables enhanced multiplexing capability while managing power allocation complexity through structured port classification.
Solution Approach 2:
The power allocation mechanism is designed to be universal across multiple antenna ports with different functions. The base station applies a unified power determination framework that handles both data transmission and reference signal transmission across multiple ports, using consistent rules for power boosting based on port count and mapping patterns. This universal approach enables support for many antenna ports while keeping power allocation manageable through standardized procedures.
Data Source
AI summary
The present invention relates to a method and an apparatus for performing beam management by a terminal in a wireless communication system. The present invention may provide a method and an apparatus in which a terminal receives, from a base station, configuration information of channel state information (CSI)-RS, and receives the CSI-RS on the basis of the configuration information, wherein the CSI-RS is transmitted through a plurality of antenna ports, and the terminal configures a beam of each of the plurality of antenna ports on the basis of the CSI-RS, wherein the CSI-RS is mapped to subcarriers on a frequency axis at an interval of predetermined number of resource elements (REs), and the CSI-RS is repeatedly transmitted according to the interval of the predetermined number of REs within a specific time period.