Terminal Scheduling Flexibility via TDD Configuration Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In future radio communication systems like 5G and NR, conflicting communication directions within the same or different slots can lead to decreased communication throughput and quality, as existing methods do not effectively prevent such conflicts.
Innovation Solution
A terminal and radio communication method that assumes no conflicts in predetermined slots, prioritizes critical symbols, and adjusts communication directions based on physical layer signaling to prevent collisions, using higher layer signaling to identify and manage communication directions within slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple TDD UL/DL configurations are used to increase scheduling flexibility, then communication adaptability is improved, but communication direction conflicts occur leading to decreased throughput and quality
Solution Approach 1:
The patent segments the TDD configuration into multiple independent configurations (first TDD UL/DL configuration and second TDD UL/DL configuration), each with its own timing parameters for UL and DL scheduling. This allows the system to maintain scheduling flexibility while managing conflicts by processing configurations separately rather than as a single unified structure.
Solution Approach 2:
The patent introduces an intermediary mechanism that receives indications of directions to use for subframes with conflicting directions between the first and second TDD UL/DL configurations. This intermediary resolution mechanism allows the system to resolve conflicts and maintain throughput while preserving the flexibility of multiple configurations.
2Adaptability or versatility
If multiple TDD UL/DL configurations are used to increase scheduling flexibility, then communication adaptability is improved, but communication direction conflicts occur leading to decreased quality
Solution Approach 1:
By segmenting the TDD configuration into separate first and second configurations with distinct timing parameters, the patent enables independent optimization of UL and DL scheduling in each configuration, reducing interference and improving communication quality while maintaining flexibility.
Solution Approach 2:
The intermediary mechanism that resolves direction conflicts between configurations ensures reliable communication by providing clear guidance on which direction to use in conflicting subframes, preventing errors and maintaining communication quality.
3Device complexity
If first TDD UL/DL configuration is used for both UL and DL timing, then device complexity is reduced, but scheduling precision for conflicting directions deteriorates
Solution Approach 1:
The patent divides the timing configuration into separate first and second TDD UL/DL configurations, each with dedicated timing parameters for UL and DL. This segmentation provides precise scheduling control for each direction while the overall structure remains manageable through standardized configuration formats.
Data Source
Figure 1
Figure 2A~2C
Figure 3
AI summary
The present invention is designed to prevent communicating directions from conflicting with each other. According to one aspect of the present invention, a terminal has a receiving section that receives downlink control information to schedule transmission and/or receipt of data in a predetermined slot, and a control section that judges the direction of communication in the predetermined slot and that controls transmission and/or receipt.