User Terminal Repetition Factor Selection via Downlink Control Information
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In next-generation radio communication systems like NR, the configuration of repetition for uplink and downlink shared channels based on time domain resources is not sufficiently flexible, impacting communication throughput.
Innovation Solution
User terminals are equipped with a reception section to receive information on repetition factor candidates and a control section to select an appropriate repetition factor based on a codepoint in downlink control information, allowing flexible configuration of repetition according to allocated time domain resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If repetition is performed over multiple slots with fixed configuration, then transmission reliability is improved, but communication throughput deteriorates due to inflexible resource allocation
Solution Approach 1:
The patent applies dynamics by enabling flexible configuration of repetition factors based on time domain resource allocation. Instead of fixed repetition configuration, the system dynamically selects repetition factors from multiple candidates according to the actual time domain resources allocated to shared channels, allowing the repetition scheme to adapt to varying channel conditions and resource allocations, thereby improving both reliability and throughput
Solution Approach 2:
The patent changes the parameter of repetition factor from a fixed value to a selectable candidate from multiple possibilities. By configuring multiple repetition factor candidates and selecting appropriate ones based on time domain resource allocation, the system optimizes the balance between transmission reliability and communication throughput for different channel conditions and resource scenarios
2Device complexity
If repetition configuration is fixed regardless of time domain resources, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The system transitions from static repetition configuration to dynamic configuration that adapts to time domain resource allocation. The base station configures multiple repetition factor candidates and selects appropriate ones based on the actual time domain resources allocated, enabling the system to adapt to different channel conditions and resource scenarios without excessive complexity
Solution Approach 2:
The repetition factor parameter is changed from a single fixed value to a set of configurable candidates. This allows the system to maintain relatively simple configuration procedures while achieving high adaptability by selecting from multiple pre-configured repetition factor options based on time domain resource allocation
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
An aspect of a terminal of the present disclosure includes: a reception section that receives information regarding one or more repetition factor candidates that are configured corresponding to a time domain resource allocated to a physical shared channel; and a control section that selects a specific repetition factor candidate based on a codepoint of a given field included in downlink control information used for scheduling the physical shared channel.