Multi-TRP PTRS Configuration for Balanced Power Boosting
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Solution Overview
Problem
The existing methods for configuring Phase Tracking Reference Signals (PTRS) in 5G New Radio (NR) systems are inadequate for multi-TRP scenarios, particularly in terms of initial configuration signaling, multiplexing, density, and power boosting, especially for frequencies above 6 GHz.
Innovation Solution
The proposed solution involves adapting PTRS configuration for multi-TRP operations by employing power boosting techniques that utilize muted REs to balance power distribution across PTRS ports, adjusting frequency density, and implementing signaling mechanisms like RRC, MAC CE, or DCI to manage power boosting factors dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power boosting techniques are employed in multi-TRP scenarios, then PTRS performance and signal tracking accuracy are improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting power boosting factors for PTRS ports based on multi-TRP configuration parameters. The gNB configures different power boosting levels (e.g., 0dB, 3dB, 6dB) for different PTRS ports associated with different TRPs, allowing flexible adaptation to varying signal conditions while maintaining manageable signaling overhead through parameter-based control.
Solution Approach 2:
The patent implements dynamics by enabling flexible and dynamic configuration of PTRS power boosting factors through RRC signaling, MAC CE, or DCI. The power boosting factors can be adjusted in real-time based on channel conditions, TRP configurations, and traffic requirements, allowing the system to adapt optimally to changing environments rather than using fixed power levels.
2Measurement precision
If PTRS configuration is adapted for multi-TRP operations with power boosting, then signal tracking accuracy is improved, but initial configuration signaling complexity increases
Solution Approach 1:
The patent applies preliminary action by configuring PTRS power boosting factors in advance through RRC signaling before actual data transmission. The gNB pre-configures the UE with power boosting parameters including power boosting levels, PTRS port associations with TRPs, and resource allocation patterns. This preliminary configuration enables the UE to properly track signals from multiple TRPs without requiring complex real-time adjustments.
3Productivity
If power boosting factors are adjusted dynamically using MAC CE or DCI, then PTRS performance is optimized, but processing overhead and system complexity increase
Solution Approach 1:
The patent implements dynamics by enabling flexible and dynamic configuration of PTRS power boosting factors through RRC signaling, MAC CE, or DCI. The power boosting factors can be adjusted in real-time based on channel conditions, TRP configurations, and traffic requirements, allowing the system to adapt optimally to changing environments rather than using fixed power levels.
Solution Approach 2:
The patent applies local quality by allowing different power boosting factors to be applied to different PTRS ports associated with different TRPs. Each TRP can have its own customized power boosting configuration based on local channel conditions and requirements, rather than applying a uniform power boosting factor across all PTRS ports. This localized optimization improves overall system performance while managing complexity.
Data Source
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AI summary
The present disclosure relates to 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). The present 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 is a method of configuring a reference signal in a telecommunication system, comprising the step of determining if multiple Transmission Points, TRP, operation is activated or not, and configuring the reference signal in accordance with the determination.