Reference Signal Initialization for Multi-Antenna Panel Systems
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting explosive data traffic, high data rates, numerous connected devices, low latency, and energy efficiency, particularly in resource allocation for reference signal transmission using multi-antenna panels.
Innovation Solution
A method and device for initializing a reference signal sequence based on panel identification information and code division multiplexing group index, allowing efficient transmission of reference signals across multiple antenna panels, reducing signaling overhead, and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reference signal transmission is performed using multiple antenna panels, then the data rate and capacity are improved, but the signaling overhead for resource allocation increases
Solution Approach 1:
The patent applies universality by enabling a single reference signal sequence initialization mechanism to serve multiple antenna panels simultaneously. The initialization formula incorporates panel identification information, allowing the same signaling framework to universally manage reference signals across different panels without requiring separate signaling for each panel, thus reducing overall signaling overhead while maintaining multi-panel functionality
Solution Approach 2:
The patent changes the initialization parameters of the reference signal sequence by incorporating panel identification information (such as panel index or panel ID) into the initialization formula. This parameter change allows the system to distinguish between different antenna panels using the same resource allocation framework, thereby supporting multiple panels without proportionally increasing signaling overhead
2Reliability
If separate resource allocation is performed for each antenna panel, then the transmission reliability is improved, but the resource allocation complexity increases
Solution Approach 1:
The patent merges the resource allocation mechanisms for multiple antenna panels into a unified framework. By combining panel identification information with the reference signal sequence initialization, the system treats multiple panels under a single resource allocation structure, reducing complexity while maintaining the ability to reliably transmit reference signals from each panel through the panel-specific initialization parameters
3Adaptability or versatility
If panel identification information is included in control information, then the adaptability for multi-panel transmission is improved, but the control information size increases
Solution Approach 1:
The patent extracts panel identification information from separate control signaling and integrates it directly into the reference signal sequence initialization process. This extraction approach allows panel-specific identification to be embedded within the existing reference signal framework rather than adding separate control information fields, thereby maintaining multi-panel adaptability while minimizing control information overhead
Data Source
AI summary
The present specification relates to a method and apparatus for transmitting a reference signal in a wireless communication system. According to this specification, in a method for transmitting a reference signal in a wireless communication system, a method performed by a base station comprises: transmitting, to a terminal, control information including panel identification information related to identification of a plurality of antenna panels used for transmission of the reference signal, wherein a reference signal sequence used to generate the reference signal is initialized based on the panel identification information by the terminal; and receiving, from the terminal, the reference signal generated based on the initialized reference signal sequence by the terminal.