AMF Paging Restriction Management for Multi-USIM 5G Access
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Solution Overview
Problem
Current Multi-USIM UE systems face challenges in efficiently managing paging restrictions and NAS signaling connection releases across different access types (3GPP and non-3GPP) in wireless communication networks, leading to resource wastage and interoperability issues.
Innovation Solution
The proposed solution involves methods and systems where the AMF determines the access type for service request messages and accordingly deletes or retains paging restrictions and manages NAS signaling connection releases. Specifically, the AMF deletes paging restrictions when a service request is received over 3GPP access and retains them for non-3GPP access, while releasing NAS signaling connections only over 3GPP access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the AMF deletes paging restrictions when a service request is received over 3GPP access, then network resource wastage is reduced, but the complexity of managing paging restrictions across different access types increases
Solution Approach 1:
The patent applies local quality by treating 3GPP and non-3GPP accesses differently regarding paging restriction management. Specifically, the AMF deletes paging restrictions only for 3GPP access while retaining them for non-3GPP access, allowing each access type to have customized management policies that optimize resource usage without unnecessarily complicating the overall system.
Solution Approach 2:
The patent segments the paging restriction management logic by access type, with distinct handling procedures for 3GPP and non-3GPP accesses. This segmentation allows the system to manage complexity through modular, access-specific logic rather than a monolithic approach, making the overall system more manageable despite the differentiated treatment.
2Reliability
If the AMF retains paging restrictions for non-3GPP access, then interoperability is improved, but network efficiency may be compromised due to continued resource allocation
Solution Approach 1:
The patent applies local quality by implementing different paging restriction management policies for different access types. For non-3GPP access, the AMF retains paging restrictions to maintain interoperability and support multi-USIM operations, while for 3GPP access, restrictions are deleted to optimize network efficiency. This differentiated approach allows the system to simultaneously achieve both interoperability and efficiency in their respective domains.
3Device complexity
If the AMF releases NAS signaling connections over 3GPP access, then connection management is simplified, but the ability to maintain separate registration states with multiple USIMs is reduced
Solution Approach 1:
The patent segments the NAS signaling connection release logic by access type, with the AMF releasing connections only for 3GPP access while maintaining connections for non-3GPP access. This segmentation enables simplified connection management for 3GPP while preserving the ability to maintain separate registration states with multiple USIMs through non-3GPP access, thus resolving the contradiction between simplicity and versatility.
Solution Approach 2:
The patent applies local quality by implementing access-specific connection management policies. The AMF releases NAS signaling connections for 3GPP access to simplify connection management, while retaining connections for non-3GPP access to maintain versatility in supporting multiple USIMs. This localized differentiation allows the system to optimize for simplicity where appropriate while preserving versatility where needed.
Data Source
AI summary
The disclosure relates to 5G or 6G communication system for supporting a higher data transmission rate. In an embodiment, a method includes deciding to use 3GPP access or non-3GPP access; and based on the decision, transmitting a service request message or a registration request message to an access and mobility management function (AMF) over the 3GPP access or the non-3GPP access, wherein in case that paging restriction information is not included in the service request message or the registration request message transmitted over the 3GPP access, stored paging restriction information regarding context of the UE is removed at the AMF.