Rate Matching Parameters for Multi-TRP Joint Transmission
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and 5G NR, lack detailed methods for rate matching during joint transmission by multiple transmission receive points (TRP) or multi-panels to the same user equipment (UE), particularly for physical downlink shared channels (PDSCHs) and physical downlink control channels (PDCCHs, leading to inefficiencies in resource allocation and transmission.
Innovation Solution
A method and apparatus for rate matching that configures and receives N groups of rate matching parameters to indicate resources for physical channels, allowing for efficient allocation and transmission across multiple TRPs or multi-panels serving a single UE, using parameters like rateMatchPatternToAddModList, rateMatchPatternGroup1, and CSI-RS resources, ensuring optimal use of time-frequency resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If joint transmission is performed by multi-TRP or multi-Panel to the same UE, then system performance is improved, but rate matching methodology is insufficient leading to resource allocation inefficiency
Solution Approach 1:
The patent segments rate matching parameters into N distinct groups, where each group corresponds to a specific physical channel or transmission point. This segmentation allows independent configuration and optimization of rate matching for each channel, resolving the inefficiency caused by unified rate matching in multi-TRP joint transmission scenarios.
2Productivity
If detailed rate matching parameters are configured for multiple physical channels, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal rate matching parameter configuration framework where N groups of parameters can be applied across multiple physical channels (PDSCH, PDCCH, etc.). This multi-functional approach allows the same parameter structure to serve different channel types, improving transmission efficiency without proportionally increasing system complexity.
Data Source
AI summary
Provided are a rate matching method and apparatus and a storage medium. The method includes the step described below. N groups of rate matching parameters are configured, where the N groups of rate matching parameters are used for indicating rate matching resources corresponding to N groups of physical channels, and N is an integer greater than 1.