Terminal Resource Allocation for 5G Non-Slot Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current intra-slot frequency hopping in 5G NR systems lacks clear conclusions and effectiveness, leading to uncontrolled interference and user conflicts in grant-free transmissions, which hinder frequency diversity gain and transmission efficiency.
Innovation Solution
A method where terminal devices determine target resources using a specific formula based on time indices and configuration information, avoiding same-frequency domain transmissions and enhancing interference randomness to improve frequency diversity and user identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If grant-free transmission with random starting location is used, then transmission flexibility is improved, but interference control deteriorates and user conflicts increase
Solution Approach 1:
The patent changes the parameter of resource allocation from completely random to semi-deterministic by introducing a formula that calculates target resources based on time indices and configuration information. This formula RB(n) = {RB start + RB offset mod N BWP size} transforms the random access pattern into a controlled sequence, reducing interference while preserving transmission flexibility.
2Productivity
If non-slot transmission is used, then transmission opportunity increases, but frequency diversity gain cannot be guaranteed
Solution Approach 1:
The patent introduces dynamic frequency hopping within non-slot transmission by calculating different target resources for different time indices. The formula generates a sequence of frequency resources that change over time, ensuring that transmissions occur across multiple frequency domains and thereby guaranteeing frequency diversity gain while maintaining high transmission opportunities.
3Reliability
If intra-slot frequency hopping is implemented, then frequency diversity is improved, but the system lacks clear conclusions and cannot work effectively
Solution Approach 1:
The patent enables the terminal to self-determine its target resources using a standardized formula based on time indices and pre-configured parameters. This self-service mechanism eliminates the need for complex network coordination and clear conclusions about hopping patterns, as each terminal independently calculates its frequency hops using the same deterministic formula, thereby simplifying system implementation while maintaining frequency diversity.
Data Source
Figure 1~3
Figure 4~6
Figure 7~9
AI summary
A data transmitting method, a data receiving method, a terminal device, and a network device are provided. The method includes: determining, by a terminal device, a target resource based on a time index and/or configuration information; and transmitting, by the terminal device, data to a network device on the target resource. Since the terminal device in embodiments of the present application directly determines the target resource according to the time index, the terminal device can control resource granularity of the target resource to meet transmission requirements of the terminal device, and can further avoid an actual data transmission process from occurring only on a same frequency domain resource and can further improve the frequency diversity gain in the non-slot transmission. In addition, when the terminal device determines the target resource based on the configuration information, randomness of interference can be enhanced as much as possible to avoid a same user from always or frequently being in conflict, so when a DMRS of the terminal device conflicts with that of other terminals, performance of user identification can be effectively improved.