Joint Channel Measurement Using Multi-TRP Beam Resource Groups
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Solution Overview
Problem
Current methods lack a way to measure joint channels involving multiple transmission and reception points (TRPs) in coordinated multipoint transmission/reception scenarios, which is essential for accurate data transmission in mobile communication systems.
Innovation Solution
A method and apparatus for joint channel measurement that configures multiple measurement resources with different beam directions, allowing for precise measurement of joint channels by distinguishing between separate and joint channel measurements, using various parameters and codebook types to enhance accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional single TRP channel measurement method is used, then measurement simplicity is maintained, but joint channel measurement capability is lost
Solution Approach 1:
The patent segments the measurement resources into multiple groups, where each group corresponds to a specific TRP. Each group contains multiple measurement resources with different beam directions. This segmentation allows the terminal to measure joint channels by processing separate TRP measurements independently while maintaining overall system simplicity.
Solution Approach 2:
The patent introduces a new dimension of measurement by configuring multiple measurement resources with different beam directions for each TRP. Instead of measuring only a single beam, the system now measures multiple beams simultaneously, adding spatial dimensionality to the measurement process and enabling comprehensive joint channel assessment.
2Measurement precision
If multiple measurement resources with different beam directions are configured, then joint channel measurement accuracy is improved, but measurement configuration complexity increases
Solution Approach 1:
The patent applies local quality by configuring different beam directions for different measurement resources within each TRP group. Each measurement resource is optimized for a specific beam direction, allowing the system to capture channel characteristics specific to each spatial direction while maintaining a structured configuration approach.
Solution Approach 2:
The network device performs preliminary configuration by pre-defining the measurement resources, beam directions, and grouping structure before actual measurement. This preliminary setup includes configuring the measurement configuration information with explicit indicators that identify which resources belong to which TRP groups, reducing complexity during the actual measurement execution.
3Productivity
If joint channel measurement is performed, then transmission capacity is increased, but interference between measurement resources increases
Solution Approach 1:
The patent segments measurement resources into distinct groups associated with different TRPs, and further segments beams within each TRP. By organizing measurements this way, the system can process interference from different TRPs independently, reducing inter-stream interference while maintaining the ability to measure joint channels for capacity enhancement.
Data Source
AI summary
This application provides a channel measurement method and apparatus. The method includes: receiving measurement configuration information, wherein the measurement configuration information is used to configure one or more measurement resource groups, each measurement resource group comprises X channel measurement resources, X is an integer greater than 1; sending a measurement result, wherein the measurement result comprises X precoding matrix indicators (PMIs), X rank indicators (RIs), and one joint channel quality indicator (CQI) corresponding to one measurement resource group of the one or more measurement resource groups.