NR-U Resource Partitioning Across Slot Boundaries for Continuous Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In the New Radio-Unlicensed (NR-U) system, there are issues of insufficient transmission resources and transmission interruptions due to the preemptive nature of unlicensed spectrum use, which affects continuous data transmission.
Innovation Solution
A method and apparatus that allocate transmission resources by allowing them to cross slot boundaries, partitioning them into multiple resources, and ensuring a code rate threshold is met for each partitioned resource to maintain continuous data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission resources are allocated deterministically in NR-U system, then transmission reliability is improved, but spectrum utilization flexibility deteriorates
Solution Approach 1:
The patent segments a transmission resource that crosses slot boundaries into multiple independent transmission resources (first transmission resource and second transmission resource). Each segment is independently scheduled and transmitted, ensuring that if one segment is preempted, other segments can still be transmitted reliably. This segmentation resolves the contradiction by maintaining transmission reliability through independent segments while allowing flexible spectrum utilization through selective transmission of segments.
2Duration of action of stationary object
If transmission resources cross slot boundaries, then transmission continuity is improved, but resource allocation complexity increases
Solution Approach 1:
The patent divides a continuous transmission resource spanning slot boundaries into discrete segments (first transmission resource in first slot, second transmission resource in second slot). This segmentation maintains transmission continuity by ensuring at least one segment can be transmitted while simplifying resource allocation complexity by allowing independent scheduling of each segment within its respective slot, avoiding complex cross-slot resource management.
Solution Approach 2:
The network device pre-configures multiple transmission resources including those that cross slot boundaries before actual data transmission. This preliminary configuration allows the terminal to have ready-to-use resource segments, reducing real-time allocation complexity while ensuring transmission continuity is maintained through pre-validated resource configurations.
3Adaptability or versatility
If transmission resources are preempted in unlicensed spectrum, then spectrum access fairness is improved, but transmission efficiency deteriorates
Solution Approach 1:
By segmenting transmission resources into independent units, the patent enables selective transmission where preempted segments are simply not transmitted while non-preempted segments continue. This maintains spectrum access fairness through preemptive mechanisms while preserving transmission efficiency by avoiding complete transmission interruptions and allowing parallel transmission of non-preempted segments.
Solution Approach 2:
The patent applies partial action by transmitting only the portions of data that can be transmitted on available non-preempted segments, rather than requiring complete transmission resources. This maintains fairness through preemption while preserving efficiency by utilizing available partial resources for continued transmission.
Data Source
Figure 1A~1C
Figure 2A
Figure 2B
AI summary
The present disclosure provides a data transmission method and a related apparatus. The method includes: receiving, by a terminal, resource allocation information from a network device; determining, by the terminal, a first transmission resource based on the resource allocation information; and performing, by the terminal, data transmission with the network device over a second transmission resource and/or a third transmission resource in case that the first transmission resource satisfies a predetermined condition. The first transmission resource includes the second transmission resource and the third transmission resource. With the present disclosure, transmission resources are allocated in an NR-U system. The terminal can partition the transmission resource determined based on the resource allocation information into two transmission resources, and then perform data transmissions on the two resulting transmission resources, thereby avoiding insufficient transmission resources and transmission interruptions, which is advantageous in ensuring continuous data transmission.