Dynamic Resource Determination for Acknowledgement Information in NR
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Solution Overview
Problem
In new radio (NR) systems, determining a resource for transmitting acknowledgement information corresponding to a physical downlink shared channel (PDSCH) is challenging, limiting the flexibility and efficiency of the acknowledgement information transmission.
Innovation Solution
A method for resource determination is provided, where a terminal device receives first signaling indicating the need to transmit acknowledgement information for at least one downlink channel, and determines a resource for transmitting this information based on the signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed resource allocation method is used for transmitting acknowledgement information, then the system complexity is reduced, but the flexibility and transmission efficiency of acknowledgement information are limited
Solution Approach 1:
The patent implements dynamic resource determination for acknowledgement information transmission. The terminal device determines the resource based on receiving first signaling from the network device, which dynamically indicates the time domain resource. This dynamic approach allows the system to adapt to varying transmission conditions and requirements, resolving the contradiction between flexibility and complexity by introducing controlled adaptability through signaling-based resource allocation.
Solution Approach 2:
The patent changes the time domain resource parameter for acknowledgement information transmission based on network signaling. The network device configures and indicates specific time domain resources through first signaling, allowing the terminal device to adjust its transmission resource accordingly. This parameter change mechanism enables flexible resource allocation while maintaining systematic control, addressing the trade-off between adaptability and complexity.
2Productivity
If dynamic resource determination is implemented, then the transmission efficiency and flexibility are improved, but the signaling overhead and system complexity increase
Solution Approach 1:
The patent uses first signaling that serves multiple functions: it indicates the time domain resource for acknowledgement information transmission and can also carry other scheduling information. This multi-functional signaling approach reduces the need for separate dedicated signaling for resource allocation, thereby improving transmission efficiency while minimizing the increase in signaling overhead through resource-efficient message design.
3Reliability
If the terminal device autonomously determines the resource without signaling, then the signaling overhead is reduced, but the control precision and reliability of resource allocation are worsened
Solution Approach 1:
The patent introduces first signaling as an intermediary between the network device and terminal device for resource allocation. This intermediary mechanism provides reliable control by allowing the network device to explicitly indicate the time domain resource through standardized signaling, ensuring both parties have consistent understanding of the allocated resource while maintaining manageable signaling overhead through efficient message structures.
Data Source
AI summary
Disclosed is a resource determination method, including: a terminal apparatus receiving first signaling, the first signaling instructing the terminal apparatus to send feedback acknowledgement information corresponding to at least one downlink channel; and the terminal apparatus determining, on the basis of the first signaling, a resource for transmitting the feedback acknowledgement information. Also disclosed are another resource determination method, a terminal apparatus, a network apparatus, and a storage medium.