Terminal PUSCH Repetition Control for Single and Multi-TRP Configurations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication systems, particularly in NR specifications, lack sufficient control mechanisms for repetition transmission of the uplink shared channel (PUSCH) when using a single transmission/reception point (TRP) or multiple TRPs, leading to potential deterioration in throughput and communication quality.
Innovation Solution
A terminal equipped with a receiving section to decode downlink control information and a control section to determine the number of transmission/reception points and sounding reference signal resources for appropriate PUSCH repetition transmission, enabling effective control of PUSCH transmissions even with single-TRP or multi-TRP configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If repetition transmission of PUSCH is performed without sufficient control mechanisms for single-TRP/multi-TRP, then the system can support basic repetition transmission, but throughput and communication quality deteriorate
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission parameters including the number of TRPs, SRI values, and repetition factors based on downlink control information. The terminal determines at least one of the number of TRPs or SRI corresponding to each PUSCH transmission from received downlink control information, enabling adaptive optimization of throughput and communication quality for both single-TRP and multi-TRP configurations
Solution Approach 2:
The patent implements dynamics by enabling flexible switching between single-TRP and multi-TRP repetition transmission modes. The terminal can dynamically determine the number of TRPs and associated SRI values based on real-time downlink control information, allowing the system to adapt to varying channel conditions and traffic requirements to maintain optimal performance
2Ease of operation
If downlink control information is used to control PUSCH repetition transmission, then appropriate control of PUSCH can be achieved, but device complexity increases
Solution Approach 1:
The patent applies universality by using a unified downlink control information structure that can indicate multiple transmission scenarios (single-TRP and multi-TRP) through the same control mechanism. The terminal uses a general-purpose control section to interpret downlink control information and determine both the number of TRPs and SRI values, eliminating the need for separate control mechanisms for different transmission modes and reducing overall system complexity
Data Source
AI summary
A terminal according to an aspect of the present disclosure includes: a receiving section that receives downlink control information including information related to repetition transmission of an uplink shared channel (PUSCH); and a control section that determines, on the basis of the downlink control information, at least one of the number of transmission/reception points for performing the repetition transmission of the PUSCH, and a transmission/reception point or a sounding reference signal resource indicator (SRI) corresponding to each of PUSCH transmissions in the repetition transmission of the PUSCH.