Access Prioritization for Private LTE in CBRS Spectrum
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current CBRS spectrum utilization rules do not effectively prioritize access to private LTE networks based on enterprise group affiliations, leading to inefficient network resource allocation and potential connectivity issues for high-priority users.
Innovation Solution
Implementing a system that associates user equipment with functional groups and uses a Digital Network Architecture (DNA) appliance to determine access priority based on these groups and cell traffic loads, allowing for preferential access and traffic management within the CBRS network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If CBRS spectrum is made available for general authorized access to maximize user coverage, then network accessibility is improved, but network resource allocation efficiency deteriorates due to lack of prioritization for high-priority users
Solution Approach 1:
The patent segments users into different functional groups (e.g., public safety, commercial, industrial) and applies different access priority levels to each group. This segmentation allows the network to maintain general accessibility while ensuring high-priority users receive preferential treatment during resource allocation decisions.
Solution Approach 2:
The patent implements local quality by applying different access priority treatments to different user groups based on their functional characteristics. Instead of uniform access rules, the system tailors access priority levels to specific functional groups, allowing high-priority users to receive enhanced resource allocation while maintaining open access for general users.
2Productivity
If access priority is implemented based on functional groups to improve network resource allocation, then resource allocation efficiency is improved, but system complexity increases due to additional prioritization mechanisms
Solution Approach 1:
The patent applies preliminary action by pre-defining functional groups and their associated access priority levels before network operations begin. User equipment is pre-associated with functional groups, and priority rules are pre-configured in the network, allowing efficient resource allocation without requiring complex real-time decision-making mechanisms.
Solution Approach 2:
The patent introduces an intermediary mechanism (the functional group association system) that mediates between user equipment and network resource allocation. This intermediary layer simplifies the prioritization process by using pre-defined group memberships rather than requiring complex individual user assessments during resource allocation.
3Ease of operation
If uniform access rules are applied to all users to simplify network operations, then ease of operation is improved, but network performance deteriorates due to inability to prioritize critical users
Solution Approach 1:
The patent applies universality by creating a multi-functional access control system that handles both simple and complex scenarios through a unified framework. The functional group-based priority system serves multiple purposes: it maintains simple operation for general users while simultaneously providing reliable prioritization for high-priority users, achieving both ease of operation and connectivity guarantee through a single mechanism.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methods for providing access prioritization to a private Long Term Evolution (LTE) network operating in a Citizens Broadband Radio Service (CBRS) spectrum include receiving, at a network device of the private Long Term Evolution (LTE) network, a functional group associated with a user equipment (UE) and a traffic load of a cell of the private LTE network associated with the UE. An access priority associated with the functional group and the traffic load is determined and provided to a CBRS access point (AP) which controls access to the cell. The access priority indicates to the CBRS AP a priority with which the UE is allowed to access the cell and can include a high priority, a low priority, or no access indication.