L1-SINR Measurement Resource Configuration in 5G Terminals
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Solution Overview
Problem
In 5G mobile communications systems, the configuration of channel measurement resources (CMR) and interference measurement resources (IMR) for layer 1 signal to interference plus noise ratio (L1-SINR) measurement is not adequately addressed, affecting communication reliability.
Innovation Solution
A method and system where a network-side device transmits configuration information to a terminal, including CMR and IMR information with a preset association relationship, allowing the terminal to determine and measure target CMR and IMR to obtain the L1-SINR, thereby improving measurement accuracy and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If hybrid digital-analog beamforming technologies are used to reduce implementation costs and processing complexity, then device complexity and cost are reduced, but measurement accuracy of L1-SINR is affected due to lack of proper CMR and IMR configuration methods
Solution Approach 1:
The network side device pre-configures the association relationship between CMR and IMR before the terminal performs L1-SINR measurement. This preliminary configuration enables the terminal to accurately determine which IMR corresponds to which CMR, ensuring measurement accuracy while maintaining the simplicity of hybrid digital-analog beamforming architecture.
Solution Approach 2:
The association relationship between CMR and IMR acts as an intermediary mechanism that bridges the channel measurement and interference measurement processes. By establishing this explicit mapping relationship, the terminal can correctly associate interference measurements with corresponding channel measurements, thereby improving L1-SINR measurement accuracy without increasing system complexity.
2Measurement precision
If L1-SINR measurement is introduced to improve beam measurement accuracy, then measurement precision is improved, but communication reliability is affected due to lack of corresponding resource configuration solutions
Solution Approach 1:
The network side device provides feedback to the terminal in the form of configuration information that indicates the association relationship between CMR and IMR. This feedback mechanism ensures that the terminal has the necessary information to perform accurate L1-SINR measurements, thereby maintaining communication reliability while enabling improved beam measurement accuracy.
Solution Approach 2:
The configuration information containing CMR and IMR association relationships is provided in advance by the network side device before the terminal performs beam measurement. This preliminary provision of measurement resources and their relationships ensures that the terminal can reliably execute L1-SINR measurements without encountering resource configuration issues during actual communication.
3Measurement precision
If configuration information including CMR and IMR association relationships is transmitted to enable accurate L1-SINR measurement, then measurement precision is improved, but information transmission overhead increases
Solution Approach 1:
The configuration information structure is designed to serve multiple purposes: it not only indicates the association relationship between CMR and IMR for L1-SINR measurement but also maintains compatibility with existing measurement frameworks. This multi-functionality allows the system to achieve improved measurement accuracy without proportionally increasing information overhead, as the same configuration mechanism supports both traditional and enhanced measurement capabilities.
Data Source
AI summary
This disclosure provides a measurement method, a resource configuration method, a terminal, and a network-side device. The measurement method applied to a terminal includes: receiving configuration information transmitted by a network-side device, where the configuration information is used to at least indicate measuring an L1-SINR, the configuration information further includes CMR information and IMR information, and there is a preset association relationship between CMRs in the CMR information and IMRs in the IMR information; determining, based on the preset association relationship, a target CMR and a target IMR for measuring a target L1-SINR; and measuring the target CMR and the target IMR separately to obtain the target L1-SINR.