Terminal SFI Configuration for Bandwidth Part Adaptability
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Solution Overview
Problem
In New Radio (NR) systems, configuring Slot Format Indicators (SFIs) for multiple Bandwidth Parts (BWPs) is challenging due to limited terminal device capacity, which affects data transmission efficiency.
Innovation Solution
A method where a terminal device receives configuration information from a network device to determine the appropriate Slot Format Indicators (SFIs) for each BWP, allowing for efficient data transmission based on the indicated slot structure, either within a single slot or across multiple slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple BWPs are configured for terminal devices with limited capacity, then the system supports larger bandwidth requirements, but the complexity of configuring and managing SFIs for each BWP increases
Solution Approach 1:
The patent divides the system into multiple BWPs (Bandwidth Parts), each with its own SFI configuration. This segmentation allows terminal devices with limited capacity to operate on smaller bandwidth portions while the system overall supports larger bandwidth requirements. Each BWP is independently configured with appropriate SFI parameters, reducing the complexity burden on individual devices.
Solution Approach 2:
The patent creates a universal SFI configuration mechanism that can be applied across multiple BWPs. The network device sends configuration information that defines SFI parameters applicable to different BWPs, allowing the same configuration framework to serve multiple bandwidth scenarios. This multi-functionality reduces the need for entirely separate configuration systems for each BWP.
2Productivity
If separate SFI configurations are provided for each BWP, then data transmission can be optimized for each bandwidth part, but the signaling overhead and configuration management burden increase
Solution Approach 1:
The patent applies local quality by configuring SFI parameters specifically tailored to each BWP's characteristics. Each BWP receives configuration information optimized for its specific bandwidth requirements and transmission needs, rather than using a uniform configuration for all BWPs. This localized optimization improves data transmission efficiency for each bandwidth part while maintaining manageable configuration overhead through targeted rather than exhaustive configuration.
3Adaptability or versatility
If the slot structure is dynamically adjusted to match activated BWP, then data transmission adaptability improves, but the processing complexity at the terminal device increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring SFI parameters and slot structure definitions before actual data transmission occurs. The network device sends configuration information in advance that defines the slot structures for different BWPs, so when a BWP is activated, the terminal device can immediately apply the pre-defined slot structure without complex real-time calculations. This reduces terminal processing complexity while maintaining high adaptability.
Data Source
AI summary
A data transmission method, a terminal device and a network device are provided. The method comprises: a terminal device receives configuration information sent by a network device, wherein the configuration information is used to configure one or more slot format indictors (SFIs) corresponding to one or more bandwidth parts (BWPs) configured for the terminal device; the terminal device determines a currently used target SFI according to the configuration information; and the terminal device performs data transmission according to the target SFI.