Prioritization Access Control Information for Wireless Networks
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Solution Overview
Problem
Current access control methods in wireless communication systems, such as 3GPP LTE, do not adequately differentiate access probabilities for applications with similar service classes based on priority, leading to inefficient resource allocation and potential service quality degradation, especially for critical applications like public safety.
Innovation Solution
Implementing prioritization access control information (PACI) that can override or modify service-specific access control information (SSACI) to provide differentiated access probabilities for applications within the same service class, ensuring higher priority applications receive preferential access during network overload.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If service-specific access control information (SSACI) is applied uniformly to all applications within a service class, then access control can be implemented based on service class, but applications with different priorities cannot receive differentiated access probabilities
Solution Approach 1:
The patent segments access control information into two distinct types: service-specific access control information (SSACI) for service-level control and prioritization access control information (PACI) for application-level prioritization. This segmentation allows the system to maintain service-class-based access control while adding priority-based differentiation without completely redesigning the access control mechanism.
Solution Approach 2:
The patent introduces prioritization access control information (PACI) that is determined in advance for applications based on their priority levels. This preliminary determination of access probabilities allows the system to pre-configure access control parameters for different application priorities, enabling differentiated access control without real-time complex calculations.
2Reliability
If access control is based solely on service class, then implementation is simple, but critical applications like public safety cannot receive preferential treatment over less critical applications in the same service class
Solution Approach 1:
The patent applies local quality by assigning different access control characteristics to different applications within the same service class based on their specific priorities. Critical applications (e.g., public safety) receive higher access probabilities through priority-specific parameters, while less critical applications receive lower probabilities, allowing differentiated treatment at the application level while maintaining service-class organization.
Solution Approach 2:
The patent adds a priority dimension to the traditional service-class-based access control model. By introducing prioritization access control information (PACI) that operates alongside service-specific access control information (SSACI), the system creates a two-dimensional access control framework that considers both service class and application priority, enabling critical applications to receive preferential treatment.
3Productivity
If uniform access control is applied during network overload, then network management is simplified, but random access load from high-priority applications may be blocked along with low-priority applications
Solution Approach 1:
The patent implements dynamic access control by adjusting access probabilities based on both service class and application priority. During network overload, the system dynamically applies prioritization access control information (PACI) to maintain appropriate access probabilities for high-priority applications while restricting low-priority applications, allowing flexible resource allocation that adapts to network conditions and application requirements.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system monitors network load conditions and application access patterns, then adjusts access control parameters accordingly. The prioritization access control information (PACI) is determined based on feedback about network status and application priorities, enabling the system to maintain reliable access for critical applications while managing overall network load efficiently.
Data Source
AI summary
Provided is a method for access control performed by a terminal in a wireless communication system and an apparatus using the method. The method comprises: acquiring service specific access control information (SSACI) on an application; determining whether prioritization access control information (PACI) can be applied to the application; and when the PACI is determined to be applicable, performing an access control for the application by preferentially applying the PACI than the SSACI.