Reference Signal Configuration for 5G Wireless Systems
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Solution Overview
Problem
There is a need to effectively configure and transmit/receive reference signals in next-generation wireless communication systems, particularly in 5G communication systems, to support higher data rates and Internet of Things (IoT) applications.
Innovation Solution
The method involves configuring reference signals, such as tracking reference signals (TRS), through scalable frame structures and resource settings, allowing for efficient transmission and reception in 5G systems, including the use of CSI-RS resource mapping and TRS patterns, to support various services like eMBB, mMTC, and URLLC, and to adapt to changes in bandwidth and beam configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reference signals are transmitted using traditional methods in 4G systems, then system compatibility is maintained, but data rate and transmission efficiency cannot meet 5G requirements
Solution Approach 1:
The patent implements dynamic reference signal configuration where the base station adaptively adjusts TRS parameters (time-frequency resources, bandwidth, periodicity) based on real-time channel conditions and service requirements. This allows the system to optimize data rate performance for 5G applications while maintaining compatibility with 4G infrastructure through conditional parameter adjustments rather than fundamental system redesign.
2Productivity
If beamforming and massive MIMO techniques are deployed to increase transmission distance and decrease propagation loss, then coverage and data rate are improved, but device complexity and power consumption increase
Solution Approach 1:
The patent employs tracking reference signals (TRS) that are transmitted in advance and periodically updated to pre-characterize channel conditions before actual data transmission. This preliminary channel estimation enables the receiver to optimize beamforming parameters and MIMO processing in advance, reducing real-time computational power consumption while maintaining extended transmission distance and improved coverage.
3Adaptability or versatility
If advanced coding modulation and multiple access techniques are implemented to support IoT and high data rates, then system capability and service diversity are enhanced, but configuration complexity and difficulty of detection increase
Solution Approach 1:
The patent segments the reference signal configuration into distinct, independently controllable parameters including time-domain resources, frequency-domain resources, bandwidth settings, and periodicity configurations. This segmentation allows each parameter to be optimized for specific 5G services (eMBB, mMTC, URLLC, IoT) without affecting others, reducing overall configuration complexity while maintaining service diversity and adaptability.
4Adaptability or versatility
If scalable frame structures and flexible resource settings are used to adapt to bandwidth and beam changes, then system adaptability is improved, but measurement and detection difficulty increases
Solution Approach 1:
The patent implements feedback mechanisms where the receiving terminal measures channel quality based on transmitted tracking reference signals and reports back to the base station. This feedback loop enables automatic adjustment of bandwidth, beam configuration, and resource allocation parameters, making the scalable frame structure and flexible resource settings self-optimizing rather than manually configured, thereby reducing detection difficulty while maintaining high adaptability.
Data Source
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AI summary
A communication method and system for converging a 5th-generation (5G) communication system for supporting higher data rates beyond a 4th-generation (4G) system with a technology for Internet of things (IoT) are provided. The disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are a method and an apparatus for configuring, transmitting, and receiving a reference signal in a wireless communication system.