UE Context Resume for IoT Access Control
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Solution Overview
Problem
Current network technologies, such as 4G and 5G cellular networks, fail to meet the requirements of low-power, low-bandwidth, and large-coverage communication for IoT devices, particularly in scenarios where devices require low-frequency and small-data transmission, as they do not effectively implement user access control and update locally-stored user information during the suspend and resume mechanisms.
Innovation Solution
A method and apparatus for user equipment context resume, where a core network element device receives and processes a UE context resume request message containing specific information like ECGI, CSG ID, cell access mode, LIPA local gateway address, and LHN ID, enabling user access control and updating of UE information, thereby addressing the limitations of existing technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If 4G and 5G cellular networks are used for IoT devices, then high speed and large bandwidth are achieved, but power consumption increases and coverage is limited
Solution Approach 1:
The patent introduces a suspend and resume mechanism that changes the operational state parameters of the UE. By transitioning from an active connected state to a suspended idle state, the system dramatically reduces power consumption while maintaining the ability to quickly resume data transmission when needed, thus resolving the contradiction between speed and energy usage.
Solution Approach 2:
The patent implements dynamic state transitions between connected and suspended states. The base station can initiate suspend when data transmission is complete, and the UE can resume when new data arrives, creating a dynamic system that adapts power consumption to actual transmission needs rather than maintaining constant high-speed capability.
2Duration of action of stationary object
If frequent charging is implemented for IoT devices, then continuous communication is maintained, but device complexity and operational burden increase
Solution Approach 1:
Instead of requiring continuous power supply through frequent charging, the patent implements periodic communication through suspend and resume cycles. The UE maintains communication capability by periodically transitioning to low-power suspended state and resuming when data transmission is required, extending operational duration without continuous charging.
3Loss of time
If the current resume mechanism is used without user access control, then quick context resumption is achieved, but network security and access control are compromised
Solution Approach 1:
The patent performs user access control checks and UE information updates as preliminary actions during the resume process. The base station retrieves stored UE context information and validates access permissions before fully restoring the connected state, ensuring security is established in advance rather than as an afterthought.
Solution Approach 2:
The patent implements feedback mechanisms where the base station retrieves and validates UE context information from the network during the resume process. This feedback loop ensures that access control decisions are based on current, verified information while maintaining efficient resumption timing.
4Use of energy by moving object
If NB-IoT with dedicated core network is deployed, then low power consumption and large coverage are achieved, but device complexity and network configuration complexity increase
Solution Approach 1:
The patent implements a universal suspend and resume mechanism that works across different network configurations including NB-IoT, 4G, and 5G. The base station's ability to initiate suspend and the UE's ability to resume creates a multi-functional solution that can be applied regardless of the specific network type, reducing configuration complexity.
Data Source
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AI summary
The present invention provides a user equipment text resume method and apparatus. The method includes: receiving a user equipment (UE) text resume request message sent from a base station, where the UE text resume request message carries at least one of the following specific information: information for user access control and information for performing the update of information about a UE; and performing at least one of the following operations on the UE according to the specific information: the user access control and the update of the information about the UE.