D2D Reference Signal Measurement for Cluster Coverage Level Detection
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Solution Overview
Problem
Cluster member terminals in D2D communication systems cannot determine the coverage level of the cell in which the cluster head terminal is located, leading to inadequate radio resource control (RRC) configurations by the network device.
Innovation Solution
The cluster head terminal sends indication information of a target reference signal to the cluster member terminal, enabling it to measure the coverage level, which is then communicated to the network device for tailored RRC configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If cluster member terminals use existing clustering communication solutions, then communication can be established between terminals, but the cluster member terminals cannot determine the coverage level of the cell in which the cluster head terminal is located
Solution Approach 1:
The patent introduces a reference signal as an intermediary carrier to transmit coverage level information. The cluster head terminal sends indication information of a target reference signal to the cluster member terminal, which then measures the reference signal to determine coverage level. This intermediary mechanism enables information transfer without direct complexity in the member terminal.
Solution Approach 2:
The cluster member terminal autonomously measures the reference signal and determines its own coverage level based on the measurement results. This self-service approach allows the terminal to obtain coverage level information independently without requiring complex network-assisted determination mechanisms.
2Reliability
If the network device performs differentiated RRC configurations based on coverage levels, then communication efficiency and reliability are enhanced, but the cluster member terminal must first be able to determine its coverage level
Solution Approach 1:
The patent replaces complex coverage level detection mechanisms with a simpler reference signal measurement approach. Instead of requiring the terminal to perform complex environmental assessments or network-assisted measurements, the system uses straightforward reference signal power measurement to infer coverage level, significantly reducing detection difficulty.
Solution Approach 2:
The patent changes the measurement parameter from direct coverage assessment to reference signal power measurement. By measuring the power of the target reference signal and comparing it against threshold values, the system converts a complex coverage determination problem into a simple parameter comparison task.
Data Source
AI summary
A communication method includes receiving indication information that is of a target reference signal and that is sent by a cluster head terminal. The communication method also includes measuring the target reference signal based on the indication information, to obtain a coverage level of a cluster member terminal in a target cell.