Dynamic TDD Subframe Configuration via Intermediary Indication
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Solution Overview
Problem
In the context of Dynamic Time Division Duplex (D-TDD) in Next-Generation Radio Access Technologies (NR), determining the subframe types of various subframes within radio frame configurations is challenging, particularly in scenarios where flexible resource allocation is required to meet diverse service needs.
Innovation Solution
A method where a terminal determines the time domain position and resource unit type of time domain resource units based on prestored configuration information, with the network-side device sending additional configuration information to adjust these settings dynamically, allowing for flexible data transmission and resource utilization optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D-TDD technology is used to dynamically adjust uplink/downlink subframe configuration, then resource utilization is optimized, but difficulty in detecting and measuring subframe types increases
Solution Approach 1:
The patent introduces configuration indication information as an intermediary between the network device and terminal. This intermediary carries subframe configuration information that enables the terminal to determine subframe types without directly observing complex dynamic changes, thus resolving the measurement difficulty while maintaining resource utilization optimization
Solution Approach 2:
The network device performs preliminary action by pre-configuring and indicating subframe configuration information before the terminal needs to determine subframe types. This preliminary configuration enables the terminal to accurately identify subframe types in advance, reducing the complexity of real-time detection and measurement
2Reliability
If anchor subframes are used to transmit important messages, then system reliability is improved, but flexibility in resource allocation is reduced
Solution Approach 1:
The patent applies dynamics by making the anchor subframe configuration adaptable and changeable through network device indication. The configuration indication information allows the network to dynamically adjust which subframes serve as anchor subframes based on actual service requirements, thus maintaining both reliability and flexibility
Solution Approach 2:
The patent changes the parameter of anchor subframe configuration from fixed to variable. By introducing configuration indication information that can be dynamically updated, the system can adjust anchor subframe positions and types according to different service scenarios, balancing reliability requirements with resource allocation flexibility
3Adaptability or versatility
If dynamic subframes are used to meet diverse service requirements, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the complex configuration management functionality from the terminal and centralizes it in the network device. The network device generates and sends configuration indication information, while the terminal simply receives and applies this information, significantly reducing terminal device complexity while maintaining adaptability to diverse service requirements
Data Source
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AI summary
Embodiments of the present invention disclose a resource determining method, a related device, and a system. The method includes: determining a time domain position and a resource unit type of a first time domain resource unit based on first configuration information, where the first configuration information includes information used to indicate the time domain position and the resource unit type of the first time domain resource unit; determining a time domain position of a second time domain resource unit based on the time domain position of the first time domain resource unit, where the time domain position of the second time domain resource unit is at a time domain position which is different from the time domain position of the first time domain resource unit and is within a preset time period; and receiving second configuration information from a network-side device, and determining a resource unit type of the second time domain resource unit based on the second configuration information, where the second configuration information includes information used to indicate the resource unit type of the second time domain resource unit. By using the embodiments of the present invention, subframe types of various subframes in D-TDD can be determined.