CSI-RS Resource Configuration for 5G Signaling Overhead Reduction
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G technology, face challenges with high system complexity, poor channel measurement performance, and high signaling overheads due to configurable time slot structures, variable multi-beams, and configurable data demodulation reference signals.
Innovation Solution
A method and device for channel state information reference signal (CSI-RS) transmission that determines and transmits CSI-RS indication information, including the number of ports and component information, to optimize CSI-RS resource configuration, reducing signaling overheads and improving channel measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If configurable time slot structures, variable multi-beams, and configurable data demodulation reference signals are implemented to support 5G requirements, then adaptability and versatility are improved, but device complexity and signaling overheads increase
Solution Approach 1:
The patent applies universality by designing a single reference signal resource configuration framework that serves multiple functions: supporting periodic, semi-persistent, and aperiodic transmissions, accommodating different beam configurations, and working across various time slot structures. This multi-functional design reduces the need for separate dedicated configurations for each 5G requirement, thereby improving adaptability while controlling system complexity
Solution Approach 2:
The patent implements dynamics through configurable reference signal resources that can be dynamically activated or deactivated based on transmission needs. The semi-persistent transmission mode allows references signals to be maintained in a configured state but only transmitted when needed, enabling the system to adapt to varying channel conditions and traffic requirements without permanently allocating resources, thus balancing adaptability with complexity management
2Adaptability or versatility
If configurable time slot structures, variable multi-beams, and configurable data demodulation reference signals are implemented to support 5G requirements, then adaptability and versatility are improved, but signaling overheads increase
Solution Approach 1:
The patent merges multiple reference signal configurations into a unified resource configuration framework. By combining periodic, semi-persistent, and aperiodic transmission modes under a single configurable structure, the system reduces redundant signaling. The unified framework allows the network to indicate transmission parameters through a single configuration message rather than separate messages for each transmission type, thereby reducing signaling overhead while maintaining full adaptability
Solution Approach 2:
The patent applies preliminary action through semi-persistent transmission mode where reference signal resources are pre-configured and activated in advance. This allows the terminal to have reference signals readily available when needed without requiring real-time signaling for each transmission, reducing latency and signaling overhead. The pre-configuration approach enables the system to prepare transmission parameters beforehand, improving responsiveness while minimizing ongoing signaling requirements
3Device complexity
If traditional CSI-RS transmission methods are used with fixed configurations, then device complexity is reduced, but channel measurement performance deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the CSI-RS resource configuration into multiple independent configurable parameters: resource allocation, beam direction, time slot position, and transmission mode. This segmentation allows each parameter to be optimized independently for channel measurement performance without increasing overall system complexity. The modular configuration enables flexible adaptation to different channel conditions while maintaining manageable complexity through standardized parameter sets
Data Source
AI summary
Provided are a channel state information-reference signal (CSI-RS) transmission method and device. The method includes following steps: a first communication node determines CSI-RS indication information; the first communication node transmits the CSI-RS indication information to a second communication node; the first communication node transmits or receives a CSI-RS according to the CSI-RS indication information; the component is used for constituting the CSI-RS resource, and the component is a set of resource elements having relative positional relations.