UE CORESET Grouping for Multi-TRP Downlink Data Differentiation
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Solution Overview
Problem
Existing systems face challenges in improving performance when User Equipment (UE) simultaneously receives multiple downlink data from multiple Transmission/Reception Points (TRPs) or multiple antenna panels or beams, as there is a lack of detailed processing methods for such scenarios.
Innovation Solution
The solution involves configuring multiple Control Resource Sets (CORESET) groups for UE, where each group corresponds to different TRPs, antenna panels, or beam groups, allowing the UE to receive Downlink Control Information (DCI) on specific CORESETs within these groups, thereby associating DCI with distinct downlink data and enhancing system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple TRPs or antenna panels transmit downlink data simultaneously to UE, then data transmission rate is improved, but system complexity increases due to lack of detailed processing methods
Solution Approach 1:
The patent segments the control resource by introducing CORESET group identification, dividing the control channel into multiple groups (first CORESET group, second CORESET group, etc.) corresponding to different TRPs or antenna panels. Each group is associated with specific downlink data, enabling the UE to process multiple simultaneous transmissions systematically without overwhelming complexity.
Solution Approach 2:
The patent introduces CORESET group identification as an intermediary mechanism between the multiple TRPs and the UE's processing system. This intermediary structure organizes the control information, allowing the UE to associate DCI with specific CORESET groups and thereby manage multiple downlink data streams in an organized manner.
2Loss of information
If UE receives DCI on multiple CORESETs for different TRPs, then downlink data differentiation is improved, but control resource configuration complexity increases
Solution Approach 1:
The patent segments control resources into multiple CORESET groups, where each group is uniquely identified and associated with specific TRPs or antenna panels. This segmentation enables clear differentiation of downlink data while organizing the configuration in a manageable structure, reducing the complexity of managing multiple control resources.
Solution Approach 2:
The patent makes CORESET group identification a universal mechanism that can be applied across different TRPs and antenna panels. The same group identification approach works for all multiple TRP scenarios, providing a unified method for data differentiation without requiring separate complex configuration for each case.
Data Source
AI summary
An information processing method, a UE, a network device, a chip, a computer-readable storage medium, a computer program product, and a computer program. The method comprises: a UE receives first downlink control information (DCI) used for scheduling first downlink data transmission (21). The first DCI is transmitted on a first control resource (CORESET) in a first CORESET group; and the first CORESET group comprises one or more CORESETs.