PUSCH Resource Group Mapping for PRACH Access Capacity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RACH technologies face challenges in configuring PUSCH resources efficiently, leading to limited user support and increased system resource requirements for the first type of random access, which affects transmission performance and capacity.
Innovation Solution
The method involves configuring PUSCH resources by determining antenna ports and time-frequency blocks, along with a mapping rule between PUSCH and PRACH resources, to optimize resource allocation and reduce signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing RACH occasion configuration method is used for PRACH resources, then the transmission performance of PUSCH can be ensured, but the capacity of PUSCH is limited
Solution Approach 1:
The patent segments PUSCH resources into multiple groups, where each group is associated with a specific PRACH resource. This segmentation allows multiple terminal devices to be multiplexed on the same PUSCH resource by assigning them to different PUSCH resource groups, thereby increasing PUSCH capacity while maintaining transmission performance through dedicated resource allocation within each group.
Solution Approach 2:
The patent introduces a new dimension of resource allocation by associating PUSCH resources with PRACH resources through a mapping relationship. This dimensional extension allows the system to differentiate and allocate PUSCH resources based on PRACH resource selection, enabling finer-grained resource management and increased overall capacity without compromising individual transmission performance.
2Reliability
If complete configuration of PUSCH resources is provided, then transmission performance is ensured, but signaling overhead increases
Solution Approach 1:
The patent extracts and utilizes the existing PRACH resource configuration as a basis for PUSCH resource allocation. By leveraging the already-configured PRACH resources and their associations with PUSCH resource groups, the system avoids redundant signaling for PUSCH configuration while ensuring complete and appropriate resource allocation for each terminal device based on its PRACH selection.
Solution Approach 2:
The patent makes the PRACH resource configuration serve a dual function: it continues to manage random access channel resources while simultaneously providing the foundation for PUSCH resource allocation. This multi-functionality eliminates the need for separate complete PUSCH configuration signaling, reducing overhead while maintaining comprehensive resource management for transmission performance.
Data Source
Figure 1~4
Figure 5~6
Figure 7~8
AI summary
Disclosed is a channel resource configuration method, comprising: a terminal device obtaining configuration information of a physical uplink shared channel (PUSCH) resource. Further disclosed is another channel resource configuration method, comprising: a terminal device obtaining a mapping rule with respect to a PUSCH resource and a physical random access channel (PRACH) resource. Further disclosed are a terminal device and a storage medium.