Panel-Specific Reference Signaling for Multi-Antenna Resource Overhead
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Solution Overview
Problem
Conventional multi-antenna communication systems face high resource overheads due to the need to allocate reference signals to each antenna port, especially when using antenna arrays, which is inefficient and resource-intensive.
Innovation Solution
Utilizing panel-specific reference signals, where a panel comprising multiple antennas is treated as a basic selection unit, eliminating the need to allocate resources to each individual antenna port, and reducing resource overheads by using panels as the basic unit for communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If one time-frequency resource is allocated to each antenna port on each panel to send SRS, then channel quality of each antenna can be measured, but resource overheads are high
Solution Approach 1:
The patent merges multiple antenna ports into a panel-level measurement unit. Instead of measuring each antenna port separately with dedicated reference signals, the invention combines the measurement function at the panel level, where one panel-specific reference signal serves multiple antenna ports within that panel, thereby reducing resource overhead while maintaining measurement capability.
Solution Approach 2:
The panel-specific reference signal serves multiple functions: it enables channel quality measurement for the entire panel, supports antenna selection within the panel, and provides a basis for beam management. This multi-functional approach eliminates the need for separate reference signals for each antenna port, resolving the contradiction between measurement precision and resource overhead.
2Quantity of substance
If a panel including an antenna array including several antennas is used as a basic selection unit, then resource overheads are reduced, but individual antenna port measurement capability is reduced
Solution Approach 1:
The patent segments the measurement process into two levels: panel-level measurement using panel-specific reference signals for resource-efficient overview, and antenna-level selection based on the panel measurement results. This segmentation allows the system to maintain antenna port measurement capability through intelligent selection algorithms while using fewer reference signal resources at the panel level.
Solution Approach 2:
The system performs preliminary panel-level measurement using panel-specific reference signals before proceeding to antenna-level selection. This preliminary action at the panel level identifies candidate panels and narrows down the search space, enabling subsequent antenna-level measurements to be performed more efficiently with reduced resource overhead while maintaining precision.
Data Source
AI summary
The method includes: receiving, by a second electronic device, K panel specific reference signals from a first electronic device by using N panels, wherein the panel specific reference signal is related to an identifier of a panel that is of the first electronic device and that sends the panel specific reference signal, and N and K are each an integer greater than or equal to 2; and measuring, by the second electronic device, signal quality of the K panel specific reference signals.