Preamble Group Selection in Random Access Reports
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems, particularly in LTE and NR, face challenges in optimizing random access procedures due to limited information on preamble group selection and configuration, which affects network performance and resource allocation.
Innovation Solution
Incorporating preamble group information into the random access report, allowing wireless devices to select between different preamble groups based on data transmission thresholds and path loss indications, and reporting this selection to the network, enabling dynamic configuration of preamble groups to optimize network parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the network requests detailed random access reporting information, then network optimization capability is improved, but signaling overhead and device complexity increase
Solution Approach 1:
The patent extracts only the essential preamble group selection information from the random access report, rather than reporting all possible random access parameters. This selective extraction provides the network with sufficient optimization data while minimizing the reporting burden on the wireless device, thus resolving the contradiction between network optimization capability and device complexity
Solution Approach 2:
The patent implements partial action by reporting only the preamble group selection indicator and related metrics rather than complete random access procedure details. This partial reporting provides the network with enough information to perform meaningful optimization while keeping the signaling overhead and device processing requirements manageable
2Productivity
If the network configures multiple preamble groups, then random access efficiency is improved, but configuration complexity and information management increase
Solution Approach 1:
The patent segments the random access preamble space into multiple preamble groups (e.g., Group A and Group B) with different characteristics and selection criteria. This segmentation enables the network to optimize random access efficiency by allowing devices to select appropriate preambles based on channel conditions and traffic types, while the segmentation itself provides a structured framework that manages configuration complexity
Solution Approach 2:
The patent introduces dynamic preamble group selection where wireless devices can adaptively choose between different preamble groups based on real-time channel conditions, path loss measurements, and data transmission requirements. This dynamic selection mechanism improves random access efficiency by matching preamble characteristics to current network conditions, while the selection algorithms provide automation that reduces manual configuration complexity
3Adaptability or versatility
If the wireless device reports comprehensive random access parameters, then network parameter optimization is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts and reports only the most critical random access parameters, specifically the preamble group selection indicator and associated metrics such as path loss measurements and data transmission volumes. This selective extraction provides the network with sufficient information for parameter optimization while significantly reducing the signaling overhead compared to reporting all possible random access parameters
Solution Approach 2:
The patent implements partial reporting by including only the essential preamble group selection information in the random access report, rather than reporting complete random access procedure details. This partial action provides the network with enough data to perform meaningful parameter optimization while keeping the signaling overhead within acceptable limits
Data Source
AI summary
A method, network node wireless device for inclusion of preamble group information in a random access (RA) report are disclosed. According to one aspect, a method in a network node includes receiving a report from the WD, the report comprising at least one of: a selection of one of a first preamble group and a second preamble group by the WD; an indication that at least one of a first condition and a second condition is satisfied. The method also includes configuring at least one of a first preamble group and a second preamble group based at least in part on the report received from the WD, the radio interface being configured to transmit an indication of which of the first and second preamble groups are configured.