Wireless Network Slice Access Control via Parameter Segmentation
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Solution Overview
Problem
Current 5G network access control methods cannot provide differential access control for various network slices, failing to meet the diverse performance requirements of different communication services such as machine type communications and ultra-reliable and low-latency communications.
Innovation Solution
Implementing a wireless network access control method where a radio access network device sets and sends access control parameters, including identifiers, access class control parameters, random access channel resources, and RRC connection messages, to terminal devices, allowing for independent access control of each network slice based on resource usage and load status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional cellular network access control method based on access class or service type class is used, then the network can provide basic access control, but it cannot provide differential access control for different network slices with diverse performance requirements
Solution Approach 1:
The patent segments the access control mechanism by introducing slice-specific access control parameters that are separate from traditional access class parameters. Each network slice can have its own access control parameters including slice identifiers, access class barring factors, and RRC connection parameters, enabling independent control for each slice while maintaining the overall access control framework.
Solution Approach 2:
The patent applies local quality by allowing different access control parameters to be configured for different network slices. Each slice can have customized parameters such as slice-specific access class barring factors, dedicated random access channel resources, and slice-specific RRC connection parameters, enabling tailored access control for each slice's specific requirements.
2Productivity
If the RAN treats all network slices uniformly, then the system operation is simplified, but the performance requirements of different network slices (such as MTC requiring large connection access and URLLC requiring extremely low delay) cannot be met
Solution Approach 1:
The patent enables the RAN to treat different network slices differently by configuring and applying slice-specific access control parameters. Each network slice receives customized parameters such as slice identifiers, access class barring factors, and dedicated random access channel resources, allowing the RAN to optimize processing for each slice's specific performance requirements while maintaining manageable complexity through structured parameterization.
3Reliability
If the RAN implements differential processing of QoS within a network slice, then the performance requirements of different services are met, but the processing complexity and resource management burden increase
Solution Approach 1:
The patent implements QoS differential processing through parameter changes by configuring multiple access class parameters and slice-specific parameters simultaneously. The RAN can adjust access class barring factors, RRC connection parameters, and random access channel resources based on slice and service requirements, enabling reliable QoS guarantees through dynamic parameter adjustment rather than complex processing logic.
4Ease of operation
If the RAN does not implement impact isolation between network slices, then the system operation is simpler, but when resources of one network slice become congested, the performance of other network slices is affected
Solution Approach 1:
The patent implements impact isolation between network slices through segmentation of access control parameters. Each network slice has its own set of access control parameters including slice identifiers, dedicated access class barring factors, and separate random access channel resources. This segmentation ensures that congestion in one slice does not affect others, as each slice operates with its own parameter set while maintaining overall system simplicity through consistent parameter structures.
Data Source
AI summary
The present invention discloses a wireless network access control method and an apparatus. The method includes: configuring, by a wireless network, an independent access control parameter for each network slice, so as to implement differential access control, by the network, on access to different network slices that is initiated by a terminal device. In addition, a core network or a radio access network initiates network slice overload control or a network slice access control parameter adjustment based on resource usage of each network slice in the network. By separately controlling and adjusting the access control parameter of each network slice, it is ensured that impact between network slices is minimized.