TCI-Based Frequency Resource Allocation for Multi-TRP Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing multiple transmission and reception points (TRPs) for data transmission/reception, particularly in allocating non-overlap frequency resource regions, which affects data transmission efficiency and capacity.
Innovation Solution
A method for configuring frequency resource regions for data transmission/reception using transmission configuration indications (TCI) in user equipment (UE) and base stations, where TCI-related information is used to determine transport block sizes based on predefined rules, allowing for efficient allocation of frequency resources across multiple TRPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple TRPs are used for cooperative transmission to increase data transmission capacity, then the data transmission efficiency is improved, but the complexity of frequency resource allocation increases
Solution Approach 1:
The frequency resource region is divided into multiple non-overlapping sub-regions, each allocated to different TRPs for data transmission. This segmentation allows multiple TRPs to operate independently without resource conflicts, increasing overall transmission capacity while maintaining manageable allocation complexity through structured division
Solution Approach 2:
The patent introduces TCI (Transmission Configuration Indication) states as an additional dimension for resource allocation. By mapping different TCI states to different frequency resource regions, the system can distinguish and manage resources for multiple TRPs without increasing time or frequency overlap, resolving the allocation complexity through dimensional expansion
2Reliability
If non-overlapping frequency resource regions are allocated to multiple TRPs to avoid interference, then the reliability of data reception is improved, but the utilization of frequency resources decreases
Solution Approach 1:
The system dynamically selects and configures TCI states based on channel conditions and traffic requirements. This dynamic configuration allows the network to adaptively optimize the balance between resource isolation (for reliability) and resource sharing (for utilization), switching between different TCI state combinations as needed
Solution Approach 2:
The patent changes the parameter of frequency resource allocation from static non-overlapping regions to dynamic regions defined by TCI state mappings. This allows the same frequency resources to be virtually separated for different TRPs when needed (improving reliability) while potentially being shared or reassigned in other scenarios (improving utilization)
Data Source
AI summary
Disclosed are a method for transmitting and receiving data in a wireless communication system, and a device for same. Specifically, a method for a user equipment (UE) to receive a physical downlink shared channel (PDSCH) in a wireless communication system includes: receiving configuration information related to the PDSCH; receiving downlink control information (DCI) for scheduling the PDSCH; receiving a first PDSCH and a second PDSCH on the basis of the configuration information and the DCI, wherein the DCI includes first transmission configuration indication (TCI)-related information and second TCI-related information.