5G Reference Signal TCI Emulation for Diverse Service Transmission
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving reference signals for various services in mobile communication systems, particularly in 5G networks, due to the need for improved uplink and downlink signal transmission/reception operations to support diverse services like eMBB, mMTC, and URLLC with varying requirements.
Innovation Solution
The method and device implement transmission configuration indication (TCI) emulation based on a one-to-many or many-to-one correspondence between multiple reference and target reference-signals, allowing terminals and base stations to determine and configure quasi-co-location assumptions for efficient signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional reference signal transmission methods are used, then system compatibility is maintained, but signal transmission efficiency and resource utilization are insufficient for diverse 5G services
Solution Approach 1:
The patent implements dynamic TCI state configuration where the base station can flexibly indicate different TCI states for different services and scenarios. The TCI state indication is dynamically updated through DCI signaling, allowing the system to adapt reference signal transmission parameters to different service requirements (eMBB, mMTC, URLLC) in real-time, thereby improving both transmission efficiency and service adaptability
Solution Approach 2:
The patent changes the parameter configuration approach by introducing TCI states that parameterize the quasi-co-location relationships between reference signals. Different TCI states contain different parameter sets (such as QCL-TypeA, QCL-TypeB, QCL-TypeC, QCL-TypeD) that can be selected based on service requirements, enabling efficient support for diverse 5G services while maintaining systematic management
2Adaptability or versatility
If multiple reference signals are configured for different services, then service-specific requirements are met, but system complexity increases
Solution Approach 1:
The patent introduces TCI states as intermediary entities that mediate between the base station's service requirements and the terminal's reference signal reception. The TCI state acts as a standardized interface that simplifies the configuration management by providing a unified mechanism for indicating quasi-co-location relationships, reducing the complexity of managing multiple service-specific configurations
Solution Approach 2:
The TCI state mechanism is designed as a universal configuration framework that can serve multiple 5G services (eMBB, mMTC, URLLC) through a single standardized interface. The same TCI state indication mechanism is used across different service types, allowing the system to meet diverse service requirements while maintaining consistent and manageable configuration procedures
3Productivity
If TCI emulation with one-to-many or many-to-one correspondence is implemented, then resource utilization is optimized, but processing complexity at terminals increases
Solution Approach 1:
The patent implements TCI emulation where a single reference signal's channel characteristics are copied and applied to multiple target signals through TCI state associations. The terminal processes the reference signal once and reuses its channel estimates across multiple TCI-emulated connections, reducing processing complexity while achieving efficient resource utilization through the one-to-many or many-to-one correspondence
Data Source
AI summary
The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The invention of the present disclosure proposes a method and device for transmitting and receiving a reference signal for efficiently using resources in a wireless communication system.