5G NR Symbol-Level Resource Indication for Signaling Overhead Reduction
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Solution Overview
Problem
Current methods for symbol-level resource allocation in 5G NR systems result in high signaling overhead and lack flexibility, particularly during multi-slot scheduling, as they either require extensive indication information for each slot or enforce uniform configuration across all slots.
Innovation Solution
A method where a network device sends N pieces of indication information to configure more than N slots, allowing for flexible symbol-level configuration by using default or predefined configurations for some slots, reducing the need for explicit indication of each slot's configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different starting or terminal symbols are configured for each scheduled slot respectively, then symbol configuration flexibility is improved, but signaling overhead increases extremely high
Solution Approach 1:
The patent segments the slot configurations into two categories: some slots use individually configured symbol-level parameters (first quantity of slots) while other slots use unified symbol-level parameters (second quantity of slots). This segmentation allows the system to apply detailed configuration only where needed, reducing overall signaling overhead while maintaining flexibility for specific slots that require it.
Solution Approach 2:
Different quality levels of configuration are applied to different slots: some slots receive high-quality individual configuration with specific starting and terminal symbols, while other slots receive lower-quality unified configuration. This local quality approach ensures that flexibility is provided where necessary without incurring the full signaling cost across all slots.
2Quantity of substance
If a unified symbol configuration is adopted for all the scheduled slots, then signaling overhead is reduced, but symbol configuration flexibility is lost
Solution Approach 1:
The patent divides the slots into two groups: one group uses unified symbol configuration (reducing signaling overhead) while the other group uses individual symbol configuration (maintaining flexibility). This segmentation resolves the contradiction by applying unified configuration where flexibility is less critical while preserving individual configuration for slots that require adaptability.
Solution Approach 2:
The system applies different configuration qualities to different slots: unified configuration for slots where flexibility is less important and individual configuration for slots requiring adaptability. This local differentiation allows the system to reduce overall signaling overhead while maintaining necessary flexibility in specific locations.
3Adaptability or versatility
If symbol-level resource allocation is introduced to improve flexibility of time-domain position, then resource allocation flexibility is improved, but the complexity of indicating and configuring each slot increases
Solution Approach 1:
The patent segments the configuration approach into two parts: unified symbol configuration for some slots and individual symbol configuration for other slots. This segmentation reduces the overall complexity of indicating and configuring slots while maintaining symbol-level resource allocation flexibility where needed.
Solution Approach 2:
The system applies individualized configuration only to specific slots that require it, rather than all slots. This local quality approach maintains resource allocation flexibility for critical slots while reducing the overall configuration complexity across the entire system.
Data Source
AI summary
A resource indication method, and a device, are provided. The method includes that: a first network device sends first signaling to a second network device, the first signaling including N pieces of indication information for indicating symbol-level configuration information, the first signaling being for configuring more than N slots according to N pieces of symbol-level configuration information and the symbol-level configuration information being for configuring a symbol for data transmission in a slot; and the first network device performs data transmission with the second network device according to the symbol-level configuration information corresponding to the indication information in the first signaling. It is not required to indicate symbol-level configuration information of each slot, thereby reducing a signaling overhead. It is not required to uniformly indicate symbol-level configuration information of all the slots either, thus improving symbol-level configuration flexibility.