LTE User Equipment Dynamic Attachment for Resource Optimization
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Solution Overview
Problem
The LTE network consumes resources unnecessarily when user equipment automatically attaches to the network even without activity, leading to wastage of resources such as MME/S-GWs and base stations.
Innovation Solution
Implementing systems and methods that allow user equipment to attach to the LTE network only when it attempts to perform activities like accessing the Internet or requesting services, using a higher-order list of radio access technologies to switch between LTE and fallback systems like CDMA, and managing attachment based on radio frequency conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment automatically attaches to the LTE network upon power on, then network accessibility is ensured, but network resources are wasted due to unnecessary connectivity
Solution Approach 1:
The patent implements dynamic attachment behavior where the UE transitions between attached and detached states based on actual data transmission needs. The system dynamically determines attachment state by checking whether uplink or downlink data is pending, rather than maintaining a static attached state. This resolves the contradiction by making connectivity flexible - ensuring accessibility when needed while releasing resources when not needed.
Solution Approach 2:
The patent changes the attachment state parameter based on data transmission conditions. Instead of maintaining a fixed attached state, the system modifies the attachment parameter (attached/detached) according to whether data transmission is required. This parameter change approach allows the system to optimize between accessibility and resource consumption by adapting the attachment state to current operational requirements.
2Duration of action of stationary object
If user equipment remains attached to the LTE network continuously, then service availability is maintained, but resource utilization efficiency decreases
Solution Approach 1:
The patent implements periodic evaluation of attachment necessity by checking for pending data transmissions at regular intervals. Instead of maintaining continuous attachment, the system periodically assesses whether attachment is still required based on current data transmission needs. This periodic action approach improves resource utilization efficiency while maintaining service availability when actually needed.
Solution Approach 2:
The system dynamically adjusts attachment duration based on actual service requirements. Rather than maintaining a fixed long-duration attachment, the attachment state is continuously adapted to match current data transmission needs. This dynamic approach resolves the contradiction by extending attachment duration only as long as service availability is required, thereby improving overall resource utilization efficiency.
3Loss of energy
If user equipment frequently switches between LTE and fallback systems, then resource wastage is reduced, but access system acquisition time increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors data transmission status and provides feedback to determine attachment state. The system uses feedback about pending uplink or downlink data to intelligently decide whether to remain attached or detach, reducing unnecessary switching to fallback systems. This feedback-driven approach minimizes unnecessary switches while still preventing resource wastage, thereby reducing access system acquisition time overhead.
Solution Approach 2:
The system performs preliminary checks for pending data transmissions before detaching from the LTE network. By proactively identifying data transmission requirements in advance, the system可以避免 unnecessary detaching and subsequent re-attachment to fallback systems. This preliminary action approach reduces the frequency of system switching while still preventing resource wastage, thereby minimizing access system acquisition time.
Data Source
AI summary
A device searches for a primary access network, and acquires the primary access network. The device also requests a service provided by a network connected to the primary access network, and attaches to the primary access network only when the service is requested by the device.