5G NR Control Resource Set Segmentation for Data Reception
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G NR communication systems, there is a challenge in improving resource utilization and preventing data pollution by ensuring that terminals do not receive data intended for other devices, while also avoiding interference with control channels.
Innovation Solution
A method where a network device sends indication information to a terminal to determine a target time-frequency resource for data transmission, ensuring no overlap with existing control channels and allowing for separation from other devices' resources, thereby preventing data pollution and optimizing resource use by utilizing idle resources in scheduling time units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control resource sets are reused for data transmission, then resource utilization is improved, but data pollution may occur where terminals receive data intended for other devices
Solution Approach 1:
The control resource set is segmented into multiple time-frequency resource regions, with each region assigned to a specific terminal. The network device sends indication information to the terminal to determine the target time-frequency resource within the control resource set, ensuring that each terminal only receives data intended for it while preventing data pollution from other terminals' data transmissions.
2Productivity
If control resource sets are reused for data transmission, then resource utilization is improved, but control channel reliability may be compromised
Solution Approach 1:
The patent extracts the control channel function from the entire control resource set and isolates it in specific time-frequency resources. The terminal determines a target time-frequency resource for data transmission within the control resource set, ensuring that control channel resources are separated from data transmission resources. This prevents data transmission from interfering with control channel reliability while still allowing resource reuse.
3Productivity
If the same time-frequency resources are used by multiple terminals, then resource utilization is improved, but interference between terminals occurs
Solution Approach 1:
The patent applies local quality by assigning different time-frequency resource characteristics to different terminals within the control resource set. Each terminal receives indication information that specifies its unique target time-frequency resource, creating localized resource allocation. This allows multiple terminals to share the control resource set while maintaining distinct resource quality characteristics that prevent mutual interference.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Embodiments of the present invention disclose a data receiving method, a related device, and a system. The method includes: receiving, by a terminal, first indication information, where the first indication information is used to indicate a target frequency domain position; determining, by the terminal, a first time-frequency resource based on a time domain position of a control resource set and the target frequency domain position, where a frequency domain position of the first time-frequency resource is the same as the target frequency domain position, and a time domain position of the first time-frequency resource is the same as the time domain position of the control resource set or is the same as a time domain position obtained by adding N symbols to the time domain position of the control resource set; and receiving, by the terminal, data on a target time-frequency resource, where the target time-frequency resource includes a second time-frequency resource and a part of resources in the first time-frequency resource; or the target time-frequency resource includes a second time-frequency resource but does not include the first time-frequency resource, where N is a positive integer. The embodiments of the present invention can improve time-frequency resource utilization.