Joint Channel Measurement Across Multiple TRPs With Beam Directions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods lack a way to measure joint channels involving multiple transmission and reception points (TRPs) in coordinated multipoint transmission/reception (CoMP) scenarios, which is necessary for accurate data transmission.
Innovation Solution
A method and apparatus for joint channel measurement that configures multiple measurement resources with different beam directions, allowing for separate and joint channel measurements, and determines precoding matrices to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple measurement resources with different beam directions are configured for joint channel measurement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the measurement process into separate measurement resources, each configured with specific beam directions. Multiple measurement resources are organized into resource sets that can be independently configured and measured, allowing the terminal device to perform joint channel measurement by combining results from these segmented resources while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent introduces beam direction as an additional dimension for configuring measurement resources. By assigning different beam directions to different measurement resources, the system achieves spatial diversity in measurements, improving joint channel measurement accuracy through multi-dimensional measurement coverage rather than relying on a single measurement resource.
2Measurement precision
If separate and joint channel measurements are distinguished through measurement configuration, then measurement precision is improved, but ease of operation decreases
Solution Approach 1:
The patent segments measurement resources into distinct types (first measurement resources for separate measurement, second measurement resources for joint measurement) and organizes them into resource sets with specific configuration parameters. This segmentation allows the terminal device to automatically distinguish between separate and joint channel measurement modes based on the resource set configuration, reducing manual operation complexity while maintaining measurement precision.
Solution Approach 2:
The patent incorporates feedback mechanisms where the terminal device reports measurement results including precoding matrix indicators and channel quality indicators for both separate and joint channel measurements. This feedback enables the network device to use the measurement information for beam selection and transmission parameter optimization, making the complex measurement differentiation process beneficial for overall system performance.
3Productivity
If multiple TRPs are involved in coordinated multipoint transmission, then transmission capacity is improved, but measurement precision requirements increase
Solution Approach 1:
The patent segments the multi-TRP channel measurement into separate measurement resources associated with individual TRPs and joint measurement resources that capture the combined channel characteristics. By organizing measurement resources this way, the system can accurately measure channels from multiple TRPs independently while also capturing their joint effects, enabling precise channel state information for CoMP transmission.
Solution Approach 2:
The patent adds the dimension of spatial beam direction to the measurement resources. By configuring measurement resources with different beam directions corresponding to different TRP locations, the system achieves accurate joint channel measurement across multiple TRPs. This spatial dimension enables the terminal device to resolve the channel characteristics of each TRP while capturing their combined transmission capacity benefits.
Data Source
AI summary
This application provides a channel measurement method and apparatus. The method includes: receiving measurement configuration information from a network device, and performing joint channel measurement based on the measurement configuration information, where the measurement configuration information is used to configure one or more groups of measurement resources, each group of measurement resources includes a plurality of measurement resources, and the group of measurement resources is used to perform joint channel measurement once.